Information
-
Patent Grant
-
6672263
-
Patent Number
6,672,263
-
Date Filed
Wednesday, March 6, 200222 years ago
-
Date Issued
Tuesday, January 6, 200421 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Denion; Thomas
- Trieu; Thai-Ba
Agents
-
CPC
-
US Classifications
Field of Search
US
- 123 43 A
- 123 43 AA
- 123 63
- 123 1971
- 123 1974
- 123 1972
- 123 1973
- 475 198
- 074 50
- 074 53
- 091 499
- 091 500
- 091 502
- 417 271
- 417 392
-
International Classifications
-
Abstract
A rotary engine, pump or compressor with a intake/exhaust ports in end plates and a rotatably mounted block mounted in a framework. In an embodiment cylinder sets are mounted in the block and each includes opposing cylinders with ends which include transfer ports disposed to alternately form passageways with the intake and exhaust ports as the cylinders rotate with the block. A novel crankset operatively connects the block to the driveshaft.
Description
CROSS REFERENCE TO RELATED APPLICATION
There are no related applications.
TECHNICAL FIELD
This invention generally pertains to an internal combustion engine, pump and/or compressor for use in numerous applications, including motor vehicles. More particularly, this invention pertains to such an engine, pump and/or compressor which includes rotary movement as well as reciprocating pistons.
BACKGROUND OF THE INVENTION
For many years the predominant type of engine, pump or compressor has been the reciprocating type. While benefits may be achieved with a rotary engine, pump or compressor, problems have been incurred with specific applications of rotary concepts previously attempted.
It will be appreciated by those of ordinary skill in the art that this invention has applications and embodiments not only for engines but also for pumps and compressors, even though an engine will be referred to and used throughout this specification.
It is therefore an object of this invention to provide an improved engine, pump or compressor with reciprocating pistons and rotary movement.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the invention are described below with reference to the following accompanying drawings:
FIG. 1
is a perspective view of a vehicle, illustrating a housing for an embodiment of the invention within said vehicle;
FIG. 2
is a cross-sectional view of one embodiment of an engine contemplated by this invention;
FIG. 3
is a side elevation view of end plates and the interconnection of end plates in one embodiment of this invention;
FIG. 4
is an end elevation view of a front end plate which may be utilized in an embodiment of this invention;
FIG. 5
is a rear end elevation view of a rear end plate which may be utilized in an embodiment of this invention;
FIGS. 6-11
illustrate the movement and positioning of cylinders relative to the cylinder ports shown on the rear end plate illustrated in
FIG. 5
;
FIG. 6
illustrates a first possible cylinder position at 0 degrees;
FIG. 7
illustrates a second cylinder position at approximately 45 degrees from that shown in
FIG. 6
;
FIG. 8
illustrates a cylinder configuration at 120 degrees from that shown in
FIG. 6
;
FIG. 9
illustrates a cylinder configuration at 180 degrees from that shown in
FIG. 6
;
FIG. 10
illustrates a cylinder configuration at 240 degrees from that shown in
FIG. 6
; and
FIG. 11
illustrates a cylinder configuration at 300 degrees from that shown in
FIG. 6
;
FIG. 12
is an end view of a cylinder and cylinder transfer port which may be utilized in an embodiment of this invention and as shown in relative positions in
FIGS. 6 through 11
;
FIG. 13
is a top schematic view of a cylinder set which may be utilized in an embodiment of this invention, showing examples of alternative positions of components of the crankset of an embodiment of this invention;
FIG. 14
is a schematic elevation representation of a piston set and cylinder set which may be utilized in an embodiment of this invention;
FIG. 15
is a top view of the piston configuration illustrated in
FIG. 14
;
FIG. 16
is an exploded view of a piston bolt detail configuration which may be utilized in the embodiment of the invention illustrated in
FIG. 15
;
FIG. 17
is a schematic illustration of an inner crank gear configuration which may be utilized in an embodiment of this invention, showing gear detail of the crankset and the eccentrically mounted crankpin;
FIG. 18
is an illustration of a crankpin gear and internal gear configuration, and the rotation thereof, which may be utilized in the embodiment of the invention illustrated in
FIG. 17
;
FIG. 19
is a schematic representation of relative positioning of the crankpin gear and internal gear relative to the circular base and crankpin through a stroke of the piston;
FIG. 20
is a cross-sectional view of an embodiment of a crank set which may be utilized in an embodiment of this invention;
FIG. 21
is an exploded view of an embodiment of a crank system which may be utilized in an embodiment of this invention;
FIG. 22
is an end elevation view of a face plate which may be utilized in combination with an end plate in an embodiment of this invention;
FIG. 23
is a front elevation view of the face plate shown in
FIG. 22
;
FIG. 24
is an end elevation view of a ring gear which may be utilized in an embodiment of this invention, and further illustrates outer gears which may interact with the ring gear;
FIG. 25
is a front elevation view of the ring gear and outer gears illustrated in
FIG. 24
;
FIG. 26
is a front elevation schematic representation of a block which may be utilized in an embodiment of this invention;
FIG. 27
is a first end elevation schematic representation of the block illustrated in
FIG. 26
;
FIG. 28
is a second end elevation schematic representation of the block illustrated in
FIG. 26
;
FIG. 29
is a front elevation schematic representation of an embodiment of an end plate framework configuration, with front bearing and driveshaft mounts, which may be utilized in an embodiment of this invention;
FIGS. 30-35
are schematic illustrations of examples the piston set and crank set movements within the cylinder set at various stages in the cycle, as may be utilized in one embodiment of the invention;
FIG. 30
illustrates an example of an arbitrary starting point of the piston set and crank set, within the cylinder set, as may be utilized in one embodiment of the invention;
FIG. 31
illustrates the piston set and crank set within the cylinder set, rotated ninety degrees from that shown in
FIG. 30
;
FIG. 32
illustrates the piston set and crank set within the cylinder set, rotated one hundred eighty degrees from that shown in
FIG. 30
;
FIG. 33
illustrates the piston set and crank set within the cylinder set, rotated two hundred seventy degrees from that shown in
FIG. 30
;
FIG. 34
illustrates the piston set and crank set within the cylinder set, rotated three hundred fifteen degrees from that shown in
FIG. 30
;
FIG. 35
illustrates the piston set and crank set within the cylinder set, rotated three hundred sixty degrees from that shown in
FIG. 30
;
FIG. 36
is a perspective view of an embodiment of the invention without the outer housing;
FIG. 37
is a perspective view of an embodiment of a gear cluster which may be utilized in this invention; and
FIG. 38
is a cross-sectional view of another embodiment of an engine contemplated by this invention, in which the rotation of the engine is via external gearing as shown; and
FIG. 39
is a cross-sectional view of another embodiment of an engine contemplated by this invention, in which the rotation of the engine is via external gearing as shown.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Many of the fastening, connection, manufacturing and other means and components utilized in this invention are widely known and used in the field of the invention described, and their exact nature or type is not necessary for an understanding and use of the invention by a person skilled in the art or science; therefore, they will not be discussed in significant detail. Furthermore, the various components shown or described herein for any specific application of this invention can be varied or altered as anticipated by this invention and the practice of a specific application or embodiment of any element may already be widely known or used in the art or by persons skilled in the art or science; therefore, each will not be discussed in significant detail.
The terms “a”, “an”, and “the” as used in the claims herein are used in conformance with long-standing claim drafting practice and not in a limiting way. Unless specifically set forth herein, the terms “a”, “an”, and “the” are not limited to one of such elements, but instead mean “at least one”.
FIG. 1
shows a vehicle
100
with an internal combustion rotary and reciprocating engine
102
within the vehicle. Again although the term engine is used throughout as the embodiment illustrated, this invention applies equally to pumps and compressors.
FIG. 2
is a cross-sectional view of one embodiment of four cylinders of an engine contemplated by this invention.
FIG. 2
illustrates an embodiment of this invention wherein first cylinder set
113
includes a first cylinder and opposing second cylinder, each cylinder comprising a proximal end (
143
for the second cylinder) open to its opposing cylinder and a terminal end having a transfer port
132
&
142
, each transfer port
132
&
142
being disposed to alternately form a passageway with the intake port and exhaust port in the end plate
110
or
111
.
The first cylinder set
113
and the second cylinder set
114
rotate about central axis
115
of the engine. Rear end plate
110
and front end plate
111
provide intake ports, exhaust ports and a spark plug
133
housing in the embodiment shown. The front end plate
111
and rear end plate
110
are stationary while the first cylinder set
113
and the second cylinder set
114
rotate relative to the end plates and around central axis
115
.
The rotation of the cylinder sets
113
and
114
around central axis
115
is driven by the piston set, cylinder set and crank set or system illustrated in the figures.
The first cylinder set
113
includes a first cylinder
130
with an internal cavity
131
, terminal end
134
with transfer port
132
being disposed to form passageways with intake and exhaust ports and spark plugs
133
in rear end plate
110
.
Second cylinder
140
is in opposed relation to first cylinder
130
and
FIG. 2
illustrates internal cavity
141
to second cylinder
140
, proximal end
143
which may be open and transfer port
142
at the terminal end of second cylinder
140
.
FIG. 2
illustrates transfer port
142
aligned with an exhaust port in front end plate
111
to allow exhaust gasses
148
to exit through exhaust manifold
149
.
First piston set is illustrated within first cylinder set in
FIG. 2
, showing first piston head
135
with piston face
136
and piston rod
137
, the first end of piston rod
137
being mounted to piston head
135
. Second piston is mounted within cylinder
140
and shows piston head
151
with piston face
152
, and piston rod
147
. A first end of piston rod
147
is mounted to piston head
151
.
In the first piston set in the preferred embodiment shown, the first piston and the second piston are operatively attached or integral such that they move together during the operation of the embodiment of the engine shown.
The first cylinder set
113
and first piston set serve to drive the crank set or crank system illustrated in this embodiment. The piston set, as shown more fully in other figures, includes a circular base aperture in the piston configuration between the first piston and the second piston, the circular base aperture is disposed to receive a circular base rotatably mounted within the circular base aperture about a transverse crank set axis, shown as item
117
in FIG.
2
. The circular base
160
has crankpin
161
eccentrically mounted therein or thereon. Crankpin gear
163
, preferably a spur gear, is mounted in a fixed relationship to crankpin
161
such that they move together in a fixed relationship.
Internal gear
162
(or second gear) has internal teeth which are configured to mate with external gear teeth on crankpin gear
163
such that crankpin gear
163
rotates within internal gear set
162
, as shown more fully in later figures.
Crankpin
161
is eccentrically mounted within first outercrank module
165
and eccentrically mounted within first inner crank module
167
. The drive or crank force from the piston set causes crankpin
161
to rotate about transverse crank axis
117
, thereby forcing rotation of first outer crank module
165
and first inner crank module
167
. Mounted to first outer crank module
165
is an outer crank module gear
166
which rotates with first outer crank module
165
. As first outer crank module
165
and outer crank module gear
166
rotate, the external gear teeth on outer crank module gear
166
mate and interact with gear teeth on ring gear
245
(shown more fully in later figures) to cause rotation of first cylinder set
113
and second cylinder set
114
about central axis
115
. Ring gear
245
is more fully shown in later figures but is stationary.
As crankpin
161
rotates, it also causes first inner crank module
167
to rotate, and first inner crank module
167
has inner crank module gears
171
thereon (which may be integral or attached thereto). First inner crank module
167
likewise is forced to rotate about crank set axis
117
. Inner crank module gears
171
mate with gears
169
on drive shaft bearings
174
to also force rotation of first cylinder set
113
and second cylinder set
114
about central axis
115
. Drive shaft bearings
174
rotates about central axis
115
. This thereby provides two points of contact or gear interaction for first cylinder set to provide rotation about central axis
115
and similarly, there are two points of gear interaction or contact to drive second cylinder set
114
about central axis
115
.
It should be noted that while inner and outer crank modules are identified, used and preferred in the embodiment of the invention illustrated, they are not necessary to practice the invention. There are other ways to eccentrically and rotatably mount the crankpin
161
relative to a point on the piston set and relative to the outer crank module gears
166
and
223
, to allow for the combined motion illustrated.
Drive shaft
116
has drive shaft gear set
162
with gear teeth
168
which interact with first inner crank module
167
gear
171
to allow the crank set to cause rotation of drive shaft
116
.
It will be appreciated that the two cylinders within first cylinder set
113
, and the components thereof, operate similarly to the two cylinders in second cylinder set
114
, all combining to drive the rotation of the cylinder sets about central axis and to drive and rotate drive shaft
116
. It will further be appreciated that while the section view in
FIG. 2
only shows four cylinders, this is only one embodiment, and four more cylinders may be added in similar fashion to the configuration at 90 degree offset to the existing four cylinders.
On the lower side of
FIG. 2
, second cylinder set
114
components are illustrated.
FIG. 2
shows third cylinder
200
with internal cavity
204
, transfer port
203
and intake
201
from intake manifold
202
. Piston head
205
, the third piston head, is similarly configured to fourth piston head
211
, and both, as described relative to first cylinder set
113
. Fourth cylinder
206
includes internal cavity
207
and transfer port
210
.
FIG. 2
further illustrates stabilizing stub shaft
170
for first cylinder set
113
and second stabilizing stub shaft
224
for second cylinder set
114
. Second cylinder set
114
interacts with the crank set shown with the following components illustrated: second inner crank module
221
with second inner crank module gears
250
.
Further shown in
FIG. 2
are second outer crank module
222
with second crankpin
213
eccentrically mounted therein and eccentrically mounted on circular base
212
. It is preferable that crankpin
213
be integral or unitary with circular base
212
, although it is not necessary to practice this invention.
FIG. 2
further illustrates second outer crank module
222
with second outer gear
223
rotating with second outer crank module
222
. Similarly to first outer gear
166
mating with ring gear
245
, second outer gear
223
likewise mates with gear teeth on ring gear
245
to also cause rotation of the cylinder sets about central axis
115
.
FIG. 2
also illustrates central block
230
about the first cylinder set
113
and the second cylinder set
114
. Face plate
209
is also shown in
FIG. 2
but more fully illustrated in later figures. In an embodiment of this invention the face plate
209
may be spring loaded or force biased to assist in the sealing of ports interacting with the transfer ports of the cylinders.
FIG. 2
shows face plate
209
within the end plates and as shown more fully in
FIG. 22
, as well as port plate
219
or valve plate, which is also shown in
FIGS. 4-11
. While not necessary, it is preferable to use port plates
219
and face plates
209
for manufacturing and/or sealing reasons, among others. The port plates
219
may be generally configured and shaped similar to the face plates
209
, only with porting apertures. Bias forces may be utilized between port and face plates and end plates to achieve the desired sealing for any particular embodiment.
In
FIG. 2
it will be appreciated that driveshaft mount
240
may be fixed to the rear end plate
110
and front bearing mount
241
may be fixedly mounted to front end plate
111
, with the invention not being restricted to any one particular application.
It will be appreciated by those of ordinary skill in the art that the basic components of this engine, pump or compressor may be adapted for use with diesel fuel as well as other fuel such as gasoline.
It should also be noted that in another embodiment contemplated by the invention, the framework and consequently the end plates, are stationary, and the port plates
219
rotate relative to the framework, end plates and the block
230
. In this embodiment, intake and exhaust ports in the end plates would preferably be utilized in combination with the port apertures in the port plates
219
to accomplish the intake and exhaust functions of the invention. In this embodiment, it would not be necessary to rotate the block
230
and those components related to the rotation of the block
230
would not be necessary. The intake and exhaust functions accomplished as part of the valving would be accomplished by rotating other members such as the port plates
219
as explained herein, or the rotation of the framework or end plates, as described below. The rotation of the port plates
219
or of the framework or end plates (as described below) can be accomplished in any one of a number of known mechanical ways known in the art.
In yet another embodiment of the invention, the framework, which in the embodiment shown would include the end plates, along with the port plates
219
therein, could be rotated and the block maintained as stationary.
FIG. 3
is a front schematic elevation view of embodiments of a rear end plate
110
and the front end plate
111
which may be utilized in the embodiment of this invention illustrated in FIG.
2
. In one embodiment, spacer dowels
280
are used to fix the relative positions of the front end plate
111
and the rear end plate
110
and bolts
281
are utilized to attach the end plates to the spacer dowels. It will be appreciated by those of ordinary skill in the art that there are other ways to space and retain the end plates within the contemplation of this invention, such as by framework supports behind the end plates or any one of a number of other ways, although the spacing dowels are preferred at this time.
FIG. 3
further illustrates central axis
117
around which the cylinder sets and the drive shaft would rotate.
FIG. 4
is a first end view from the front of front end plate
111
, illustrating front end plate
111
, three intake ports
285
and three exhaust ports
286
.
FIG. 4
further illustrates front bearing mount aperture
287
configured to receive a front bearing mount transfer ports rotate about the central axis, as shown in later figures.
FIG. 5
is a second end view of rear end plate
110
illustrating three intake ports
288
and three exhaust ports
289
, along with drive shaft mount aperture
290
. In the embodiment shown and described, the rear end plate ports are out of phase with the front end plate ports by approximately thirty (30) degrees counterclockwise, looking from the front. Arranging the rear end ports out of phase with the front end plate ports allows for cylinder firing to occur at even intervals as the double-sided piston reciprocates in its bores, creating the four cycles of intake, compression, combustion and exhaust. The combustion is initiated by the spark plug with timing similar to standard reciprocating engines which are generally known.
In looking back at
FIG. 4
, there may be three firing cycles per cylinder set revolution, where the cylinder set is the cylinders, the pistons and their mounting assembly. By way of example, it would take approximately six revolutions of the crank shaft to produce one revolution of a cylinder about the engine's centerline. That ratio and that one cylinder fires three times during that one revolution. Two turns of the crank set produces four combustion cycles, which may be the same as standard eight-cylinder engines.
As shown in
FIGS. 4 and 5
, exhaust ports and intake ports are arranged radially to communicate with the cylinder ports or transfer ports as the transfer ports are rotated about the central axis of the engine. The inlet and exhaust ports in the front end plate
111
are arranged in clockwise order with the exhaust port being first to communicate with the cylinder port in their respective groupings. In the layout shown in
FIGS. 4 and 5
, layouts of the end plates shown in
FIGS. 4 and 5
, the diagram is for an eight-cylinder version of the engine, which is contemplated by embodiments of this invention. In the embodiments in which only four cylinders are utilized, it will produce half as many combustion cycles.
The end plates shown in
FIGS. 3
,
4
and
5
also may function as framing members and mounting fixtures for port plates, intake and exhaust systems and as cooling towers for the engine coolant. Coolant passages may be machined or cast into the interior of the end plates surrounding all the attached entities.
FIGS. 6 through 11
show the rotation schematic end view of the rear end plate
110
as the cylinder sets rotate about the center axis of the engine, at approximately 60-degree intervals.
FIG. 6
, for example, would be the theoretical starting point or 0 degrees location of the cylinder set relative to the rear end plate
110
. First cylinder
300
and second cylinder
301
are shown, first cylinder
300
including first cylinder transfer port
303
and second cylinder
301
including second cylinder transfer port
304
. Intake ports
289
and exhaust ports
288
are shown at approximate 60-degree angles offset from one another and spark plugs
302
are shown in their relative position.
FIG. 7
is same view and item numbers as
FIG. 6
, only with first cylinder
300
and second cylinder
301
each rotated approximately 60 degrees relative to FIG.
6
.
FIG. 8
is same view and item numbers as
FIG. 6
, only with first cylinder
300
and second cylinder
301
each rotated approximately 120 degrees relative to FIG.
6
.
FIG. 9
is same view and item numbers as
FIG. 6
, only with first cylinder
300
and second cylinder
301
each rotated approximately 180 degrees relative to FIG.
6
.
FIG. 10
is same view and item numbers as
FIG. 6
, only with first cylinder
300
and second cylinder
301
each rotated approximately 240 degrees relative to FIG.
6
.
FIG. 11
is same view and item numbers as
FIG. 6
, only with first cylinder
300
and second cylinder
301
each rotated approximately three hundred degrees (300°) degrees relative to FIG.
6
.
FIG. 12
is a simplified end view schematic of a cylinder, such as a cylinder shown in
FIG. 14
, illustrating an exemplary cylinder
310
with transfer port
311
and terminal end
312
which would interact with an end plate. The cylinder shown in
FIG. 12
is an exemplary cylinder, simplified for purposes of illustration.
FIG. 13
illustrates the movement of piston set
321
in linear fashion such that the first piston head
322
and the second piston head
324
, along with the piston rods
323
and
325
move or reciprocate in a substantially linear movement or direction.
FIG. 13
illustrates rear end plate
315
, front end plate
316
, bolts
317
, spacing dowel
318
, first cylinder
319
with first cylinder internal cavity
331
or combustion chamber, second cylinder
320
with internal cavity
334
. First cylinder has transfer port
332
and second cylinder transfer port
333
.
As can be seen, the piston rods are integral or unitary and have the circular base aperture
327
in internal gear
326
in which circular base
328
is rotatably mounted or disposed. Crankpin
329
is eccentrically mounted on circular base
328
. The sequence of phantom lines shows the relative movement of crankpin
329
through the cycle, as well as the relative movement of circular base
328
, all while maintaining a substantially linear movement along axis
330
of the piston rods and piston heads.
FIG. 14
is a schematic front elevation depiction of a piston set within a cylinder set, illustrating first cylinder
350
with terminal end
351
and proximal end
352
. Second cylinder
353
is shown with proximal end
354
and terminal end
355
. First combustion chamber
356
and second combustion chamber
357
are also illustrated with first transfer port
358
and second transfer port
359
also being shown. Head bolts
360
are shown as one way of attaching the components of the cylinder together.
FIG. 14
also illustrates piston set
362
with first piston head
363
, second piston head
364
, first piston rod
365
, second piston rod
366
. The cylinders are illustrated with heat transfer fins on the exterior thereof.
The piston set
362
is preferably generally integral or unitary and includes circular base aperture
370
, piston bolts
371
with lock pins
372
(as shown more fully in FIG.
16
).
It will be noted by those of ordinary skill in the art as shown in
FIG. 14
that the first cylinder face
380
and the second cylinder face
381
are contoured to generally or substantially match the shape of terminal end
351
of cylinder
350
. The matching as shown with a portion of the piston face protruding into or toward the transfer port
358
provides a more efficient configuration and better “squish” as known by those of ordinary skill in the art. While not required to practice this invention the contoured shape of the piston face and the terminal end of the cylinder are contoured and smooth, configured to efficiently allow the flow of gases and product of combustion, whereas in typical cylinders the cylinders are shaped to accommodate and/or control other aspects of the engine, such as better control of the valves.
FIG. 15
is a top view of the piston set
362
illustrated in FIG.
14
and shows first piston head
363
, first piston face
380
, first piston rod
365
, piston bolt
371
and lock pin
372
.
FIG. 15
further shows second piston head
364
with piston face
381
, piston rod
366
and circular base aperture
370
.
FIG. 17
is a top view of an embodiment of a piston set
362
contemplated by this invention, illustrating the interaction of the piston set with the internal gear
400
and crankpin gear
397
, which may be a spur gear.
FIG. 17
illustrates first piston head
363
, second piston head
364
. Circular base aperture
370
is shown within the piston set
362
configuration with circular base
403
rotatably mounted in circular base aperture
370
. Arrow
399
illustrates a direction that circular base
403
may rotate within circular base aperture
370
and crankpin axis
127
is an axis about which crankpin
398
rotates relative to the circular base
403
. Crankpin
398
concurrently moves about crankset axis
117
.
Crankpin
398
, which may also be referred to as a main shaft, drive pin or any one of a number of different names, is preferably integral or unitary with circular base
403
and rotates therewith. Crankpin gear
401
is fixed to and around crankpin
398
and has external teeth as shown which correspond to internal teeth on internal gear
400
to matingly interact. As circular base
403
rotates clockwise in the view shown, crankpin gear
401
rotates counterclockwise within internal gear
400
. The relative sizing of circular base
403
, the eccentric mounting relationship of crankpin
398
to circular base
403
, the size and configuration of crankpin gear
401
and the size and configuration of internal gear
400
all combine to offset one another in a transverse direction such that the overall movement of the piston set is linear, or reciprocating when it occurs within the cylinder set. The crankpin gear
401
, a smaller orbiting gear, is forced around its own axis in a counterclockwise direction, thereby forcing the orbit in a clockwise direction within internal gear
400
, which in turn forces the crankpin
398
and the circular base
403
to rotate clockwise. It will be appreciated by those of ordinary skill in the art that it is not necessary to utilize a circular base in a circular base aperture, but instead the crankpin
398
may otherwise be eccentrically mounted relative to the piston set to rotate about a crankpin axis and about a crankset axis.
FIG. 18
is an illustration of an internal gear
400
, a crankpin gear
401
and a direction of rotation arrow
407
showing a counterclockwise rotation of crankpin gear
401
about its own axis, which allows the depiction of crankpin gear
401
's clockwise orbit within internal gear
400
. The center of internal gear
400
may also be the center of rotation of the crankset, also referred to as the crank set axis
117
, which is transverse to the central axis
115
of the engine, which is shown in FIG.
2
.
The internal gear
400
is preferably stationary and crankpin gear
401
generally rotates at a ratio of approximately 2 to 1 for each orbit within internal gear
400
. It can also be seen that crankpin
402
is eccentrically mounted relative to the piston set, by mounting it on circular base
403
(as shown in FIGS.
17
and
18
).
FIG. 19
is another schematic depiction of a piston set interacting with internal gear
400
, the piston set being numbered
362
, similar to that shown in
FIG. 17
, only showing various positions of the crankpin
402
by the phantom lines, as it moves with crankpin gear
401
clockwise within internal gear
400
. The phantom lines illustrate the first crankpin position
402
a
approximately 90 degrees from the original position of crankpin
402
. Crankpin
402
b
depicts a second phantom crankpin position 180 degrees from the starting point of crankpin
402
and crankpin
402
c
illustrates a third phantom position for crankpin
402
, 270 degrees from the starting position of crankpin
402
.
FIG. 19
further illustrates the relative position of circular base
403
a
when the crankpin is at position
402
b
, with circular base
403
a
being shown by phantom lines. This depiction of circular base
403
a
is when the crankpin
402
is at crankpin
402
b
, 180 degrees from the starting position illustrated.
FIG. 20
is a cross sectional view of a crank set layout which may be utilized in an embodiment of this invention.
FIG. 20
illustrates central axis
115
of the engine with drive shaft
116
being generally centered about central axis
115
. Drive shaft bearings
174
locate and position drive shaft
116
relative to central axis
115
and other components of the engine, pump or compressor. Internal gear
162
and crankpin gear
163
on the upper crank set side are shown, as depicted and explained in more detail in prior figures. Circular base
160
and crankpin
161
are integral or unitary with circular base
160
. Not shown is circular base aperture which circular base
160
would generally be rotatably mounted within and driven by. First outer crank module
165
has crankpin
161
eccentrically and rotatably mounted within it and as the piston set forces circular base
160
and crankpin
161
to rotate, this likewise forces first outer crank module
165
to rotate and drive an outer gear mounted thereto in the direction of the arrow shown. The first outer crank module
165
generally and approximately rotates about crank axis
117
, which is generally transverse and perpendicular to central axis
115
. First outer crank module
165
utilizes bearing
248
to locate and allow rotation thereof.
The opposing or opposite side of crankpin
161
is eccentrically mounted within first inner crank module
167
such that crankpin
161
may rotate within the aperture in which it is received. Forcing the rotation of circular base
160
and crankpin
161
likewise forces the rotation of first inner crank module
167
about crank set axis
117
.
It can be seen that first inner crank module
167
interacts with drive shaft gearing
172
to cause rotation of drive shaft
116
. The rotation transfer mechanism may be any one of a number of different types of gears or means, all of which are generally known in the field of art.
There is a stabilizing mini shaft
170
fixed to first inner crank module
167
to provide additional stability and location of the rotation, and is generally centered about crank set axis
117
. The stabilizing mini shaft
170
is supported and located by pin bearings as shown.
At the lower end of
FIG. 20
is the same general configuration as the upper end, illustrating second outer crank module
222
mounted within bearing
246
. Crankpin
213
is eccentrically mounted on circular base
212
and rotatably and eccentrically mounted within second outer crank module
222
and eccentrically and rotatably mounted within second inner crank module
221
, as shown. Second inner crank module
221
includes second inner crank module gear
250
which interacts with drive shaft gear
172
to provide drive rotation to drive shaft
116
. Stabilizing stub shaft
224
is mounted within pin bearings as shown and has similar location and function to stabilizing mini shaft
170
on the upper portion of the crank set as shown.
FIG. 20
also shows second inner crank module bearing
222
and internal gear
220
. First inner crank module gear
171
will generally correspond to second inner crank module gear
250
in configuration and interaction with drive shaft gear
172
. It will be noted that the eccentrically mounted crankpins
161
and
213
are preferably one piece with circular base
160
and
212
respectfully.
Again, the inner and outer crank modules rotate about the crank axis
117
, forcing the circular bases
160
and
212
with eccentrically mounted crankpins
161
and
213
to counter rotate. In general, this embodiment of the invention requires a set of inner and outer crank modules, internal gear set and eccentrically mounted crankpins for each piston set. This engine design has flexibility in that it may easily and equally have a similar set of cylinder sets and crank sets at a ninety degree (90°) angle rotating about central axis
115
to increase the number of cylinders from 4 to 8 in a given application.
FIG. 21
is an exploded view of the crank set layout for this embodiment of the invention, illustrating first outer crank module
165
, circular base
160
with crankpin
161
eccentrically mounted thereon, crankpin gear
163
(which is preferably a spur gear), internal gear
162
, first inner crank module
167
, first inner crank module gear
171
, stabilizing mini-shaft
170
for first inner crank module
167
, drive shaft
116
with drive shaft gear
172
, second outer crank module
222
mounted and positioned within bearing
246
, second circular base
212
with second eccentrically mounted crankpins
213
mounted to second circular base
212
.
FIG. 21
further shows internal gear
220
, second inner crank module
221
with second inner crank module gear
250
thereon, and stabilizing stub shaft
224
. The crank set rotates about the crank set axis
117
.
First inner crank module gear
171
is preferably a 45-degree beveled gear, sized to accommodate for crank sets about the main drive shaft gear
172
. Second inner crank module gear
250
would preferably be the same or approximately the same as first inner crank module gear
171
and interact with drive shaft gear
172
in a similar fashion.
FIG. 22
is an end elevation view of a face plate
209
with first face plate aperture
209
a
and second face plate aperture
209
b
with central aperture
209
c
. The bores
209
a
and
209
b
generally go around the cylinder neck which then rotates face plate
209
with the cylinders. The face plate is preferably spring loaded to help seal the intake and exhaust ports when the ports are not communicating with transfer ports in the respective cylinder sets. The face plate surface that is sliding on the port plate would preferably be highly polished and lubricated depending on the specific application and materials used. Again, the face plate rotates with the cylinders and the seals and ports are cut out on the port plate which is immovably mounted on the end plate. The face plate is preferably equipped with an oil supply and scrapers for excess oil for sealing and lubrication purposes.
FIG. 23
is a front elevation view of face plate
209
. While the face plate shown is the preferred way to achieve lubrication and interaction of surfaces and ports at the time of filing, this may be done in any one of a number of different ways at the rear end plate, front end plate, or otherwise, all within the contemplation of this invention.
FIG. 24
is an end elevation view of the ring gear which is generally situated about the rotating perimeter of the engine, also shown in
FIG. 2
as item
245
. The ring gear has gearing on one or both sides and outer crank module gears
166
and
223
, as also shown in
FIG. 2
, interact with ring gear
245
to drive part or all of the rotation of the engine about its central axis. The interaction of the outer crank module gears
166
and
223
provides a driving force to rotate the cylinder set and piston sets around the central axis of the engine at a gear ratio of approximately 1 to 6, which would be the final output shaft of the engine or drive shaft. The approximate center of ring gear
245
will also be the approximate central axis of the engine. It will also be appreciated that the ring gear is stationary and does not rotate with the engine, but instead the two outer crank module gears
166
and
223
force the rotation of the engine through interaction with ring gear
245
. The ring gear is also provided with bolt holes for locating and fastening the ring gear to an outer housing.
It is preferable in a four-cylinder embodiment of this invention that there be two outer crank module gears
166
and
223
mounted 180 degrees apart. However, in the eight-cylinder embodiment of this invention, there would be four such outer crank module gears, each preferably and sequentially mounted 90 degrees apart from one another. The two outer crank module gears
166
and
223
generally rotate in opposite directions from one another, thereby forcing the cylinder set to rotate about the central axis of the engine.
FIG. 25
is a front elevation view of ring gear
245
and first outer crank module gear
166
and second outer crank module gear
223
, as also shown in FIG.
24
.
FIG. 26
is a front elevation view of one embodiment of the cylinder block
400
which may be utilized in embodiments of this invention.
FIG. 26
illustrates blind hole bore
401
, first cylinder through bore
402
with arrow
403
illustrating the through bore, second cylinder through bore
404
through cylinder block
400
. Crank set bore
405
is also shown on the upper half, and a corresponding crank bore hole
406
is shown on the lower half of the cylinder block
400
illustrated in FIG.
26
. It will be appreciated that first cylinder bore
402
intersects crank set bore
405
and second cylinder bore
404
intersects with second crank set bore
406
.
FIG. 27
is a right end view of the cylinder block
400
illustrated in
FIG. 26
, illustrating first cylinder bore
402
, second cylinder bore
404
, cutouts
408
which are merely portions where metal or material are cut out to reduce the overall weight of the cylinder block.
FIG. 27
illustrates a more universal cylinder block
400
because two additional cylinder bores
410
and
411
are shown and would not be utilized in the four-cylinder embodiment of this invention. Instead, third cylinder bore
410
and fourth cylinder bore
411
would be utilized in an eight-cylinder embodiment of this invention. It should also be noted that cylinder block
400
would rotate about the central axis of the engine. Additionally, in the eight-cylinder version and in the preferred universal cylinder block, transverse crank set bores would be provided for the additional two cylinders, for example transverse crank set bore
412
would be similar in nature to crank set bores
405
and
406
.
FIG. 27
further illustrates shoulders
422
where the internal gear shown and described in prior figures may be located or mounted.
FIG. 28
is a left end view of the embodiment of the cylinder block
400
illustrated in
FIG. 26
, illustrating blind hold bore
401
, first cylinder bore
402
, second cylinder bore
404
, third cylinder bore
410
, and fourth cylinder bore
411
, with cutouts
408
also shown as through cutouts.
It will be appreciated by those of ordinary skill in the art that there is no particular cylinder or cutout configuration that is required to practice the cylinder block portion for this embodiment of the invention, but any one of a number of configurations as well as materials may be used, all as contemplated.
FIG. 29
is a front elevation view showing the interaction of end plates with bearing mounts which may be utilized for the drive shaft or other components.
FIG. 29
illustrates rear end plate
450
, front end plate
451
, spacer dowels
452
, frame bolts
453
, drive shaft mount
454
, front bearing mount
455
and central axis
456
about which the engine rotates.
FIG. 30 through 35
illustrate the cycling of an embodiment of a piston set contemplated by this invention with an embodiment of a cylinder set and with the internal gear configuration illustrated in this embodiment. Each of
FIGS. 30 through 35
illustrates or shows a cylinder set which includes first cylinder
500
with first cylinder cavity
502
(combustion chamber), transfer port
503
, first cylinder terminal end
501
, first cylinder proximal end
499
, second cylinder
504
which includes second cylinder internal cavity
505
, second cylinder proximal end
513
, second cylinder terminal end
514
, and second cylinder transfer port
506
.
Each of
FIGS. 30 through 35
also shows a piston set which includes first piston
507
, second piston
508
and crank related mechanisms such as circular base
509
, crankpin
510
eccentrically mounted on circular base
509
within a circular aperture in the piston set, crankpin gear
511
fixed to eccentric pin
510
and internal gear
512
.
Since all like items are numbered identically in
FIGS. 30 through 35
, they will not be repeated herein.
FIG. 30
is shown as a theoretical starting point for the cycling of the piston set within the cylinder set.
FIG. 31
is a depiction of the cylinder and piston configuration wherein crankpin
510
has rotated 90 degrees within internal gear
512
.
FIG. 32
illustrates a 180 degree rotation of crankpin
510
;
FIG. 33
illustrates a 270 degree rotation of crankpin
510
;
FIG. 34
illustrates an approximate 315 degree rotation or movement of crankpin
510
; and
FIG. 35
illustrates a 360 degree rotation of crankpin
510
within internal gear
512
.
FIGS. 30 through 35
therefore show a complete rotation of crankpin
510
and the relative position of circular base
509
, crankpin gear
511
and relative to first piston
507
and second piston
508
.
FIG. 36
is a perspective view of an embodiment of this invention which utilizes eight cylinders, or four cylinder sets.
FIG. 36
illustrates ring gear
621
, which is preferably stationary, drive shaft mount
622
, outer crank module gear
628
on cylinder set
623
. The cylinder set represented by item
623
includes a first cylinder
624
, a second cylinder
625
, outer crank module
629
, piston rod
632
, circular base
641
, internal gear
631
, terminal end
627
of first cylinder
624
, transfer port
626
for first cylinder
624
, inner crank module
630
with gears
634
thereon.
In the embodiment of the engine
620
shown in
FIG. 36
, a breakaway view within cylinder
650
better illustrates piston head
642
, piston rod
640
and circular base
641
.
FIG. 37
is a perspective view of an embodiment of a gear cluster which may be utilized by this invention, showing an eight cylinder embodiment of an engine, pump or compressor gear cluster. The gear cluster
600
is shown with inner crank modules
601
,
603
,
605
and
606
, each having gears
609
,
610
,
607
and
608
respectively thereon. The inner crank modules have eccentrically positioned apertures
602
and
604
(with the apertures not shown for inner crank module
605
and
606
), and drive shaft
611
. The preferred ratio of rotation for the inner crank modules versus the drive shaft
611
are six-to-five (6:5). It should be noted it is preferred that the ratio be greater than one for relative sizing and interaction, although no one particular ratio is required to practice this invention.
FIG. 38
is a cross-sectional view of another embodiment of an engine contemplated by this invention, in which the rotation of the engine is via external gearing as shown.
FIG. 38
is the same as
FIG. 2
in many respects and each like component will therefore not be separately identified and described relative to FIG.
38
. However,
FIG. 38
does further illustrate an engine rotation system which utilizes a rotation gear
701
or sprocket mounted on or to a rotation gear shaft
702
, the rotation gear shaft
702
being rotatably mounted to the end-plates in this embodiment. The rotation gear
701
may be a gear, sprocket for receiving a chain, or any other mechanical configuration for transferring/receiving rotation from the drive shaft, all within the contemplation of this invention.
Although the rotation gear
701
is shown operatively attached or rotatably coupled to drive shaft gear
703
via chain
704
, it may be operatively or rotatably attached in any one of a number of different ways within the contemplation of this invention. The rotation of the drive shaft and consequently the drive shaft gear
703
, causes the rotation gear
701
and the rotation gear shaft
702
to rotate, which in turn rotates block drive gears
705
. Block drive gears
705
are operatively attached to and drive block gears
706
and the rotation of the block drive gears
705
thereby rotates the engine block, cylinder sets, etc. about the drive shaft axis. It is preferable that the gear or sprocket ratio between drive shaft gear
703
and rotation gear be a six-to-one (6:1) ratio in the embodiment shown. In this embodiment, this results in the block and cylinder sets rotating once about the central axis for every six rotations of the driveshaft. It should also be noted that in this embodiment, the outer crank gear and the ring gear as shown and described relative to
FIG. 2
has been replaced with the configuration shown.
FIG. 39
is a cross-sectional view of another embodiment of an engine contemplated by this invention, in which the rotation of the engine is via external gearing as shown.
FIG. 39
is the same as and/or similar to FIG.
2
and
FIG. 38
in many respects and each like component will therefore not be separately identified and described relative to FIG.
2
and/or FIG.
38
.
FIG. 39
, like
FIG. 38
, does further illustrate an engine rotation system which utilizes a rotation gear
701
or sprocket mounted on or to a rotation gear shaft
702
, the rotation gear shaft
702
being rotatably mounted to the end-plates in this embodiment.
FIG. 39
illustrates an embodiment of this invention which utilizes an additional gear in the gear cluster, a cluster rotation gear
712
, and a differential in the rotation of cluster rotation gear
712
, a block rotation gear, versus the rotation of the drive shaft, at a preferred 6:5 ratio, to achieve the rotation of the block. The configuration in
FIG. 39
is an embodiment showing another way to rotate the engine block, illustrating second rotation gear
708
or sprocket, is operatively connected to cluster rotation gear shaft
710
via gear or sprocket
709
, such that the cluster rotation gear shaft
710
and the cluster rotation gear
712
rotate in the opposite or reverse direction of rotation gear shaft
702
.
Mechanism
711
merely depicts any mechanism which may be used to reverse the rotation between the rotation gear shaft
702
and the cluster rotation gear shaft
710
. This mechanism may be by gearing or any other known means.
Also as stated above relative to
FIG. 2
, the relative rotation between the cylinders and the transfer ports in the cylinder relative to the intake and exhaust ports in the port plates and/or end plates is utilized as the valving function, and that may be accomplished within the contemplation of this invention by rotating the block and the cylinders, by rotating the port plates, or by rotating the framework or end plates, or some combination thereof.
As will be appreciated by those of reasonable skill in the art, there are numerous embodiments to this invention, and variations of elements and components which may be used, all within the scope of this invention.
For example, in one embodiment of the invention, a rotary engine, pump or compressor is provided which comprises: a stationary framework comprising a first port plate at a first side of the framework and a second port plate at a second side of the framework and fixed relative to the first port plate, each port plate comprising an intake port and an exhaust port through the port plate; a block rotatably mounted relative to the stationary framework and about a central axis; a first cylinder set and a second cylinder set mounted in the block in opposing relation from one another about the central axis, each cylinder set comprising: a first cylinder and an opposing second cylinder, each cylinder comprising a proximal end and a terminal end having a transfer port disposed to alternately form a passageway with the intake port and the exhaust port in the port plate; a first piston set movably mounted within the first cylinder set and a second piston set movably mounted within the second cylinder set, the first and second piston sets each comprising: a first piston in the first cylinder and a second piston in the second cylinder, each piston comprising a piston head with a piston face and a piston rod having a first end mounted to the piston head, wherein the piston rods are operatively attached to one another; a first crankset driven by the first piston set and a second crankset driven by the second piston set, the first crankset and the second crankset each comprising: a crankpin eccentrically mounted to the piston set to rotate about a crankpin axis; a crankpin gear fixed to the crankpin; an internal gear fixed relative to the first cylinder set, the internal gear having an internal gear configured to mate with the crankpin gear as the crankpin gear rotates within the internal gear; wherein the eccentric rotation of the crankpin offsets the rotation of the crankpin gear within the internal gear to provide approximately linear movement of the piston heads within the first and second cylinders and such that the crankpin also rotates about a crankset axis; an inward side of the crankpin being eccentrically mounted to an inner crank gear, such that the rotation of the crankpin also rotates the inner crank gear about the crankset axis; wherein the generally linear movement of the circular base aperture of the piston set drives the crankpin gear to rotate around within the internal gear, thereby driving the crankpin to rotate about the crankpin axis; and the inner crank gear mating with a driveshaft gear such that the rotation of the inner crank gear rotates the driveshaft.
In further embodiments to that disclosed in the preceding paragraph, a rotary engine, pump or compressor is provided, which further comprises a rotation gear rotatably mounted relative to the stationary framework and operatively attached to and driven by the driveshaft, and further wherein the rotation gear is disposed to drive the rotation of the block. In other further aspects of the invention to the preceding: a block drive gear is provided and driven by the rotation gear, the block drive gear operatively interacting with the block to drive the rotation of the block; or the block drive gear may operatively interact with the block to drive the rotation of the block via a block gear integral with the block and which corresponds to and is driven by the block drive gear; and still further, the rotation gear and the block drive gear may be integral.
While there are multiple possible ratios of rotation between the rotation gear and the driveshaft, an embodiment of the invention utilizes a rotation ratio of six-to-five. Still further embodiments of these embodiments of the invention may further comprise an ignition device mounted to each of the first port plate and the second port plate such that rotation of the transfer port about the central axis causes the transfer port to form a passageway with the sparking device, and further wherein the ignition device is a spark plug. Further aspects of this may include configurations wherein the transfer port at the terminal end of each cylinder is disposed to alternately form a passageway with the intake port and the exhaust port in the port plate.
Another embodiment of this invention, for example, is a rotary engine, pump or compressor comprising: a stationary framework comprising a first port plate at a first side of the framework and a second port plate at a second side of the framework and fixed relative to the first port plate, each port plate comprising an intake port and an exhaust port through the port plate; a block rotatably mounted relative to the stationary framework and about a central axis; a first cylinder set and a second cylinder set mounted in the block in opposing relation from one another about the central axis, each cylinder set comprising: a first cylinder and an opposing second cylinder, each cylinder comprising a proximal end and a terminal end having a transfer port disposed to alternately form a passageway with the intake port and the exhaust port in the port plate; a first piston set movably mounted within the first cylinder set and a second piston set movably mounted within the second cylinder set, the first and second piston sets each comprising: a first piston in the first cylinder and a second piston in the second cylinder, each piston comprising a piston head with a piston face and a piston rod having a first end mounted to the piston head, wherein the piston rods are operatively attached to one another; a first crankset driven by the first piston set and a second crankset driven by the second piston set, the first crankset and the second crankset each comprising: a crankpin eccentrically mounted to the piston set to rotate about a crankpin axis; a crankpin gear fixed to the crankpin; an internal gear fixed relative to the first cylinder set, the internal gear having an internal gear configured to mate with the crankpin gear as the crankpin gear rotates within the internal gear; wherein the eccentric rotation of the crankpin offsets the rotation of the crankpin gear within the internal gear to provide approximately linear movement of the piston heads within the first and second cylinders and such that the crankpin also rotates about a crankset axis; an outward side of the crankpin being eccentrically mounted to an outer crank gear, such that the rotation of the crankpin also rotates the outer crank gear about the crankset axis; an inward side of the crankpin being eccentrically mounted to an inner crank gear, such that the rotation of the crankpin also rotates the inner crank gear about the crankset axis; wherein the generally linear movement of the circular base aperture of the piston set drives the crankpin gear to rotate around within the internal gear, thereby driving the crankpin to rotate about the crankpin axis; the inner crank gear mating with a driveshaft gear such that the rotation of the inner crank gear rotates the driveshaft; the outer crank gear mating with a stationary ring gear around the first and second cylinder sets such that the rotation of the outer crank gear against the ring gear drives the rotation of the first cylinder set and the second cylinder set around the central axis.
In a further embodiment of the embodiment described in the preceding paragraph, a rotary engine, pump or compressor and further comprises an ignition device mounted to each of the first port plate and the second port plate such that rotation of the transfer port about the central axis causes the transfer port to form a passageway with the sparking device; wherein the ignition device is a spark plug; wherein the transfer port at the terminal end of each cylinder is disposed to alternately form a passageway with the intake port and the exhaust port in the port plate, comprising: a circular base aperture between the first and second piston rods; and wherein the first crankset and the second crankset each comprise: the crankpin eccentrically mounted to a circular base mounted within the circular base aperture, the circular base disposed to rotate about a crankpin axis, the crankpin rotating about both the crankpin axis and the crankset; further wherein the circular base aperture is integral with the first and second piston sets; wherein the crankpin gear is in fixed relation to the crankpin by mounting it to the crankpin; wherein the crankpin gear is in fixed relation to the crankpin by mounting it around the crankpin; wherein the outward side of the crankpin is eccentrically and rotatably mounted in an outer crank module which is operatively attached to the outer crank gear, such that the rotation of the crankpin rotates the outer crank module and the outer crank gear about the crankset axis; wherein the inward side of the crankpin is eccentrically and rotatably mounted in an inner crank module which is operatively attached to the inner crank gear, such that the rotation of the crankpin rotates the inner crank module and the inner crank gear about the crankset axis; and/or wherein the first cylinder set and the second cylinder are defined by apertures in the block.
In compliance with the statute, the invention has been described in language more or less specific as to structural and methodical features. It is to be understood, however, that the invention is not limited to the specific features shown and described, since the means herein disclosed comprise preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims appropriately interpreted in accordance with the doctrine of equivalents.
Claims
- 1. A rotary engine, pump or compressor, comprising:a stationary framework comprising a first port plate at a first side of the framework and a second port plate at a second side of the framework and fixed relative to the first port plate, each port plate comprising: an intake port and an exhaust port through the port plate; a block rotatably mounted relative to the stationary framework and about a central axis; a first cylinder set and a second cylinder set mounted in the block in opposing relation from one another about the central axis, each cylinder set comprising: a first cylinder and an opposing second cylinder, each cylinder comprising a proximal end and a terminal end having a transfer port disposed to alternately form a passageway with the intake port and the exhaust port in the port plate; a first piston set movably mounted within the first cylinder set and a second piston set movably mounted within the second cylinder set, the first and second piston sets each comprising: a first piston in the first cylinder and a second piston in the second cylinder, each piston comprising a piston head with a piston face and a piston rod having a first end mounted to the piston head, wherein the piston rods are operatively attached to one another; a first crankset driven by the first piston set and a second crankset driven by the second piston set, the first crankset and the second crankset each comprising: a crankpin eccentrically mounted to the piston set to rotate about a crankpin axis; a crankpin gear fixed to the crankpin; an internal gear fixed relative to the first cylinder set, the internal gear having an internal gear configured to mate with the crankpin gear as the crankpin gear rotates within the internal gear; wherein the eccentric rotation of the crankpin offsets the rotation of the crankpin gear within the internal gear to provide approximately linear movement of the piston heads within the first and second cylinders and such that the crankpin also rotates about a crankset axis; an inward side of the crankpin being eccentrically mounted to an inner crank gear, such that the rotation of the crankpin also rotates the inner crank gear about the crankset axis; wherein the generally linear movement of the circular base aperture of the piston set drives the crankpin gear to rotate around within the internal gear, thereby driving the crankpin to rotate about the crankpin axis; and the inner crank gear mating with a driveshaft gear such that the rotation of the inner crank gear rotates the driveshaft.
- 2. The rotary engine, pump or compressor as recited in claim 1, and which further comprises a rotation gear rotatably mounted relative to the stationary framework and operatively attached to and driven by the driveshaft, and further wherein the rotation gear is disposed to drive the rotation of the block.
- 3. The rotary engine, pump or compressor as recited in claim 2, and further comprising a block drive gear driven by the rotation gear, the block drive gear operatively interacting with the block to drive the rotation of the block.
- 4. The rotary engine, pump or compressor as recited in claim 2, and wherein the block drive gear operatively interacts with the block to drive the rotation of the block via a block gear integral with the block and which corresponds to and is driven by the block drive gear.
- 5. The rotary engine, pump or compressor as recited in claim 4, and further wherein the rotation gear and the block drive gear are integral.
- 6. The rotary engine, pump or compressor as recited in claim 2, and further wherein the rotation gear is driven by the driveshaft at a rotation ratio of six-to-five.
- 7. The rotary engine, pump or compressor as recited in claim 2, and further wherein:the transfer port at the terminal end of each cylinder is disposed to alternately form a passageway with the intake port and the exhaust port in the port plate.
- 8. The rotary engine, pump or compressor as recited in claim 1, and further comprising an ignition device mounted to each of the first port plate and the second port plate such that rotation of the transfer port about the central axis causes the transfer port to form a passageway with the sparking device.
- 9. The rotary engine, pump or compressor as recited in claim 8, and further wherein the ignition device is a spark plug.
- 10. The rotary engine, pump or compressor as recited in claim 1, and further comprising:a circular base aperture between the first and second piston rods; and wherein the first crankset and the second crankset each comprise: the crankpin eccentrically mounted to a circular base mounted within the circular base aperture, the circular base disposed to rotate about a crankpin axis, the crankpin rotating about both the crankpin axis and the crankset.
- 11. The rotary engine, pump or compressor as recited in claim 10, and further wherein the circular base aperture is integral with the first and second piston sets.
- 12. The rotary engine, pump or compressor as recited in claim 1, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear to the crankpin.
- 13. The rotary engine, pump or compressor as recited in claim 1, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear around the crankpin.
- 14. The rotary engine, pump or compressor as recited in claim 1, and further wherein the inward side of the crankpin is eccentrically and rotatably mounted in an inner crank module which is operatively attached to the inner crank gear, such that the rotation of the crankpin rotates the inner crank module and the inner crank gear about the crankset axis.
- 15. A rotary engine, pump or compressor, comprising:a stationary framework comprising a first port plate at a first side of the framework and a second port plate at a second side of the framework and fixed relative to the first port plate, each port plate comprising an intake port and an exhaust port through the port plate; a block rotatably mounted relative to the stationary framework and about a central axis; a first cylinder set and a second cylinder set mounted in the block in opposing relation from one another about the central axis, each cylinder set comprising: a first cylinder and an opposing second cylinder, each cylinder comprising a proximal end and a terminal end having a transfer port disposed to alternately form a passageway with the intake port and the exhaust port in the port plate; a first piston set movably mounted within the first cylinder set and a second piston set movably mounted within the second cylinder set, the first and second piston sets each comprising: a first piston in the first cylinder and a second piston in the second cylinder, each piston comprising a piston head with a piston face and a piston rod having a first end mounted to the piston head, wherein the piston rods are operatively attached to one another; a first crankset driven by the first piston set and a second crankset driven by the second piston set, the first crankset and the second crankset each comprising: a crankpin eccentrically mounted to the piston set to rotate about a crankpin axis; a crankpin gear fixed to the crankpin; an internal gear fixed relative to the first cylinder set, the internal gear having an internal gear configured to mate with the crankpin gear as the crankpin gear rotates within the internal gear; wherein the eccentric rotation of the crankpin offsets the rotation of the crankpin gear within the internal gear to provide approximately linear movement of the piston heads within the first and second cylinders and such that the crankpin also rotates about a crankset axis; an outward side of the crankpin being eccentrically mounted to an outer crank gear, such that the rotation of the crankpin also rotates the outer crank gear about the crankset axis; an inward side of the crankpin being eccentrically mounted to an inner crank gear, such that the rotation of the crankpin also rotates the inner crank gear about the crankset axis; wherein the generally linear movement of the circular base aperture of the piston set drives the crankpin gear to rotate around within the internal gear, thereby driving the crankpin to rotate about the crankpin axis; the inner crank gear mating with a driveshaft gear such that the rotation of the inner crank gear rotates the driveshaft; the outer crank gear mating with a stationary ring gear around the first and second cylinder sets such that the rotation of the outer crank gear against the ring gear drives the rotation of the first cylinder set and the second cylinder set around the central axis.
- 16. The rotary engine, pump or compressor as recited in claim 15, and further comprising an ignition device mounted to each of the first port plate and the second port plate such that rotation of the transfer port about the central axis causes the transfer port to form a passageway with the sparking device.
- 17. The rotary engine, pump or compressor as recited in claim 16, and further wherein the ignition device is a spark plug.
- 18. The rotary engine, pump or compressor as recited in claim 16, and further wherein:the transfer port at the terminal end of each cylinder is disposed to alternately form a passageway with the intake port and the exhaust port in the port plate.
- 19. The rotary engine, pump or compressor as recited in claim 15, and further comprising:a circular base aperture between the first and second piston rods; and wherein the first crankset and the second crankset each comprise: the crankpin eccentrically mounted to a circular base mounted within the circular base aperture, the circular base disposed to rotate about a crankpin axis, the crankpin rotating about both the crankpin axis and the crankset.
- 20. The rotary engine, pump or compressor as recited in claim 19, and further wherein the circular base aperture is integral with the first and second piston sets.
- 21. The rotary engine, pump or compressor as recited in claim 15, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear to the crankpin.
- 22. The rotary engine, pump or compressor as recited in claim 15, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear around the crankpin.
- 23. The rotary engine, pump or compressor as recited in claim 15, and further wherein the outward side of the crankpin is eccentrically and rotatably mounted in an outer crank module which is operatively attached to the outer crank gear, such that the rotation of the crankpin rotates the outer crank module and the outer crank gear about the crankset axis.
- 24. The rotary engine, pump or compressor as recited in claim 15, and further wherein the inward side of the crankpin is eccentrically and rotatably mounted in an inner crank module which is operatively attached to the inner crank gear, such that the rotation of the crankpin rotates the inner crank module and the inner crank gear about the crankset axis.
- 25. A rotary engine, pump or compressor, comprising:a framework comprising a first port plate at a first side of the framework and a second port plate at a second side of the framework and fixed relative to the first port plate, each port plate rotatably mounted relative to the framework and each comprising an intake port and an exhaust port through the port plate; a block mounted relative to the framework and about a central axis; a first cylinder set and a second cylinder set mounted in the block in opposing relation from one another about the central axis, each cylinder set comprising: a first cylinder and an opposing second cylinder, each cylinder comprising a proximal end and a terminal end having a transfer port disposed to alternately form a passageway with the intake port and the exhaust port in the port plate; a first piston set movably mounted within the first cylinder set and a second piston set movably mounted within the second cylinder set, the first and second piston sets each comprising: a first piston in the first cylinder and a second piston in the second cylinder, each piston comprising a piston head with a piston face and a piston rod having a first end mounted to the piston head, wherein the piston rods are operatively attached to one another; a first crankset driven by the first piston set and a second crankset driven by the second piston set, the first crankset and the second crankset each comprising: a crankpin eccentrically mounted to the piston set to rotate about a crankpin axis; a crankpin gear fixed to the crankpin; an internal gear fixed relative to the first cylinder set, the internal gear having an internal gear configured to mate with the crankpin gear as the crankpin gear rotates within the internal gear; wherein the eccentric rotation of the crankpin offsets the rotation of the crankpin gear within the internal gear to provide approximately linear movement of the piston heads within the first and second cylinders and such that the crankpin also rotates about a crankset axis; an inward side of the crankpin being eccentrically mounted to an inner crank gear, such that the rotation of the crankpin also rotates the inner crank gear about the crankset axis; wherein the generally linear movement of the circular base aperture of the piston set drives the crankpin gear to rotate around within the internal gear, thereby driving the crankpin to rotate about the crankpin axis; and the inner crank gear mating with a driveshaft gear such that the rotation of the inner crank gear rotates the driveshaft.
- 26. The rotary engine, pump or compressor as recited in claim 25, and which further comprises a rotation gear rotatably mounted relative to the framework and operatively attached to and driven by the driveshaft, and further wherein the rotation gear is disposed to drive the rotation of the first port plate and the second port plate.
- 27. The rotary engine, pump or compressor as recited in claim 25, and further comprising:a circular base aperture between the first and second piston rods; and wherein the first crankset and the second crankset each comprise: the crankpin eccentrically mounted to a circular base mounted within the circular base aperture, the circular base disposed to rotate about a crankpin axis, the crankpin rotating about both the crankpin axis and the crankset.
- 28. The rotary engine, pump or compressor as recited in claim 27, and further wherein the circular base aperture is integral with the first and second piston sets.
- 29. The rotary engine, pump or compressor as recited in claim 25, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear to the crankpin.
- 30. The rotary engine, pump or compressor as recited in claim 25, and further wherein the crankpin gear is in fixed relation to the crankpin by mounting the crank pin gear around the crankpin.
- 31. The rotary engine, pump or compressor as recited in claim 25, and further wherein the inward side of the crankpin is eccentrically and rotatably mounted in an inner crank module which is operatively attached to the inner crank gear, such that the rotation of the crankpin rotates the inner crank module and the inner crank gear about the crankset axis.
US Referenced Citations (39)
Foreign Referenced Citations (4)
Number |
Date |
Country |
164317 |
Dec 1985 |
EP |
416890 |
Oct 1910 |
FR |
1084 |
Jan 1913 |
GB |
55078101 |
Jun 1980 |
JP |