Information
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Patent Grant
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6659066
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Patent Number
6,659,066
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Date Filed
Monday, June 24, 200222 years ago
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Date Issued
Tuesday, December 9, 200321 years ago
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CPC
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US Classifications
Field of Search
US
- 123 243
- 123 204
- 123 221
- 123 223
- 123 224
- 123 227
- 123 231
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International Classifications
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Abstract
An independent radial vane rotary machine for the production of rotary mechanical power through internal combustion of liquid or gaseous fuel and employing intermeshed gearing for synchronization of major rotational components. The machine functions in general accordance with the principles of the Carnot heat engine cycle but mechanical manipulation of working fluid is accomplished without reciprocating mechanical components and combustion is performed as a continuously sustained process. The machine offers vibration-free operation and good measures of functional efficiency, power density, and inherent reliability. The disclosure presents the geometric and mechanical features necessary to demonstrate functional viability.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
Not applicable
STATEMENT REGARDING FEDERALLY FUNDED RESEARCH OR DEVELOPMENT
No products of Federally Funded Research or Development are reflected in, or referenced in, this disclosure.
REFERENCE TO A MICROFICHE APPENDIX
No Microfiche Appendix is included in this application.
BACKGROUND OF THE INVENTION
At the present time, machines employed for the production of mechanical energy by internal combustion of organic fuel consist primarily of mechanical displacement reciprocating engines and gas turbines.
Reciprocating engines employ reciprocating pistons and valves to accomplish working fluid manipulation and fuel combustion occurs as a periodic process. The functional principles of the reciprocating internal combustion engine are described in terms of the theoretical thermodynamic cycle postulated by Sadi Carnot in 1824 or in terms of one of the theoretical thermodynamic cycles subsequentially postulated by Nicholas Otto in 1876 and Rudolph Diesel in 1892. Gas turbines employ purely rotational aerodynamically interacting components to accomplish working fluid manipulation and fuel combustion is a self-sustaining continuous process. In general, gas turbines theoretically function in accordance with a thermodynamic cycle as postulated by G. B. Breyton in 1876.
Reciprocating engines are economically satisfactory power sources for many commercial applications but are mechanically complex and the reciprocating components and the periodic combustion process are inherent sources of undesirable noise and vibration. In comparison, gas turbine machines characteristically offer the attributes of relatively higher power density and reduced emissions of noise and vibration but offer economic superiority only in applications requiring relatively high measures of delivered power.
Over a number of years significant inventive effort has been directed toward the derivation of a “rotary” internal combustion machine that give the performance characteristics of reciprocating engines but preclude their concomitant mechanical complexity and potential for emission of noise and vibration. The radial vane type rotary machine has been the subject of particular attention in this regard.
Conceptually the rotary vane machine primarily consists of a stationary housing containing a rotationally dynamic mechanical assembly. The stationary housing consists of a containment cylinder installed with end closure structures and ports for movement of combustion air and combustion products through the structural boundary. The rotationally dynamic mechanical assembly primarily consists of a rotational armature and a set of radial vanes. Said rotational armature is precisely or approximately circular in cross section and is concentrically secured on a rotational shaft. Said rotational shaft is constrained by rotational bearings with its rotational axis parallel to but radially displaced from the bore axis of said containment cylinder and its axial ends are configured to interface with external rotational power machines. Said rotational armature is proportioned to have an effective diameter significantly less than the bore diameter of said containment cylinder in order to create an annular space around its periphery. Said rotational armature is fitted with a number of axially oriented radial vane slots equally distributed around its periphery. Each radial vane slot accommodates and provides annular sliding support for one radial vane. Each said radial vane is proportioned to axially extend through the axial length of said rotational armature and radially extend from within said radial vane slot to the bore of said containment cylinder. The set of radial vanes thus subdivides the annular space surrounding said rotational armature into a number of segmental chambers. Since the rotational axis of said rotational armature is radially displaced from the bore axis of said containment cylinder, the relative volume of any said segmental chamber is dependent upon its orbital location and is cyclically changed through rotation of said rotational armature. The dynamic relationship between rotational armature rotation and relative segmental chamber volume is functionally analogous to the relationship between relative cylinder volume and crankshaft rotation as occurs in reciprocating type internal combustion machines and provides the working fluid manipulation features necessary for evolution of a Carnot type heat engine cycle. For a given set of containment cylinder proportions, the manipulated volume is inversely influenced by the diameter of said armature. Within certain limits, the effective compression ratio of the volumetric cycle is directly influenced by both the number of segmental chambers surrounding said rotational armature and the distance separating the rotational axis of said rotational armature from the bore axis of said containment cylinder. Said effective compression ratio is also influenced by the angular width and orbital location of the sectors allocated for the combustion air supply port and for the combustion product discharge port.
A number of patents have been awarded for rotary vane internal combustion machine concept but, despite the potentially excellent qualities offered by the machine, none of the concepts presented in prior art are known to have matured sufficiently to demonstrate practical utility. It is hypothesized that such non-maturation is the result of singular or compounded inadequacies regarding the functional viability of the perceived entities. As known to persons skilled in the art, the fundamental functional viability of all machines is dependent upon their compatibility with natural laws related to physics, mathematics, and chemistry. It is also known that the functional viability of an energy related machine is dependent upon its capability to meet thresholds for overall efficiency and reliability within constraints imposed by economic considerations. Overall efficiency of a thermal machine is critically dependent upon attaining certain minimum thresholds for both thermodynamic cycle efficiency and mechanical efficiency and functional reliability is critically dependent upon maintaining component temperatures within thresholds prescribed by material characteristics. For these reasons the potential functional viability of a thermal machine may be assessed by analytical review of its functional geometry and component features relative to heat cycle efficiency, mechanical efficiency, and thermal management considerations.
For internal combustion machines based on Carnot principles and with numerically equal compression and expansion ratios, the basic relationship between cycle efficiency (“Air Standard Efficiency”) and the effective compression ratio is:
The relationship shown above demonstrates that heat cycle efficiency is favorably influenced by the magnitude of the compression ratio accomplished within the volumetric manipulation. As previously noted, the effective compression ratio of a rotary vane machine is directly influenced by the number of the annular segmental chambers surrounding the armature and the distance between the rotational armature axis and containment cylinder bore axis. Analysis demonstrates that the threshold for adequate cycle efficiency is attained only if the number of segmental chambers surrounding the rotational armature and the distance between the rotational armature axis and containment cylinder bore axis both exceed certain minimum values.
Mechanical efficiency is essentially the measure of mechanical energy conservation exhibited by a mechanism in the process of doing work. Mechanical efficiency is adversely influenced by the quantity of energy dissipated by frictional interaction between dynamically interfacing components and in this context may simply be expressed as:
Power consumed by internal friction is the sum of the increments of power consumed by individual frictional components. In radial vane type rotary machines the radial vanes create the preponderance of the dynamically active mechanical interfaces and are, thereby, a particularly significant potential cause of power loss due to friction. Potential friction sources are; a) peripheral edge friction caused by sliding contact of said radial vanes with bore of the stationary containment cylinder, b) axial end friction caused by sliding contact of axial ends of the radial vanes with non-rotating end closure components, and c) radial friction caused by sliding contact of the faces of radial vanes with the supporting surfaces of rotational armature. The magnitude of energy loss due to friction is also significantly influenced by the nature of the materials in sliding contact and the effectiveness of lubrication at the contact surface. Analysis demonstrates that without deliberate friction reduction the number of radial vanes necessary to achieve functional viability from a thermodynamic cycle efficiency viewpoint could, alone, incur sufficient friction to cause the machine to be non-viable from a mechanical efficiency viewpoint.
Internal combustion machine components are exposed to heat from three sources, adiabatic compression, fuel combustion, and friction. Component temperature must be constrained with certain thresholds in order to avoid performance degradation through thermal expansion, strength reduction, or lubricant failure. For these reasons the functional viability of internal combustion machines is dependent upon adequate thermal control. Thermal control normally consists of the movement of liquid and/or gaseous heat extraction media across component surfaces and, in general, the rate of heat extraction is directly influenced by both the surface area and flow rate of heat extraction media. Thermal control for stationary enclosures is readily accomplished by exposure of external surfaces to ambient air or by movement liquid heat extraction media through integral passageways. Thermal control for internal mechanically dynamic components is normally accomplished by circulation of air and liquid lubricant. In the case of reciprocating machines the internal mechanically dynamic components are substantially isolated from high temperature working fluid and they are conveniently exposed to internal thermal control media contained within a stationary crankcase. In comparison the internal mechanically dynamic components of rotary vane machines are relatively more substantially exposed to contact with high temperature working fluid and significantly less conveniently exposed to thermal control media. For these reasons the means for maintaining internal thermal control is a vital issue regarding the functional viability of rotary vane thermal machines.
Rotary vane machine disclosures presented to date substantially focus on technical approaches toward minimization of friction and in particularly friction related to the relative motion between the radial vanes and the bore of the containment cylinder but, in general, they are substantially silent regarding the other functional viability issues discussed above. Principal features of several relevant prior disclosures are briefly reviewed below.
U.S. Pat. No. 2,590,132 discloses a rotary vane machine in which each radial vane is radially constrained by cylindrical extensions at each axial end one of which engages a rotating ring and the other engages a rotating disk. An annular cylinder is coaxially secured to both said rotating ring and said rotating disk and is axially and radially constrained by a rotational bearing installed in a stationary structure at one axial end. Said annular cylinder is installed with axially aligned radial slots with each slot proportioned to accommodate and permit radial movement of one said radial vane and with axially aligned sealing strips secured on its outer periphery and proportioned to maintain sliding contact with the bore of a stationary housing. Each said radial vane is radially constrained to maintain a small distance between its radially outermost axial edge and the bore of said stationary housing. A spring loaded sliding seal is installed on the radially outermost axial edge of each said radial vane and proportioned to maintain pressure contact with the bore of said stationary housing. Lubrication and thermal control issues are not discussed.
U.S. Pat. No. 5,568,796 discloses an independent vane rotary machine in which each radial vane is radially constrained by pivotal bearings installed on a rotating hub. Each said radial vane is radially proportioned to extend through a rotating circular annulus installed on rotational bearings and aligned with its rotational axis parallel to but separate from the rotational axis of said hub. Gears maintain said hub and said circular annulus in synchronous rotation. The bore of said stationary housing is contoured and each said radial vane is proportioned to maintain a constant distance of separation between the radially outermost axial edge of said radial vane and the bore of said stationary housing. A seal is installed on the outermost axial edge of each said radial vane to close the gap between said radial vane and the bore of said stationary housing. The disclosure demonstrates that one said assembly fulfills the functional requirements of a gaseous fluid compressor and also demonstrates that two such assemblies mechanically coupled can collectively fulfill the functional requirements of a heat engine cycle. The disclosure is silent regarding means for sealing the axial ends of segmental chambers, centrifugal restraint of vane edge seals and issues related to lubrication and thermal control for internal components.
U.S. Pat. No. 5,709,188 discloses an independent vane rotary machine in which each radial vane is radially constrained by a mechanical link installed on its radially innermost axial edge and radially extends through a rotational annulus. Said rotational annulus is aligned with its rotational axis parallel to but separate from the bore of a stationary housing. A stationary cam is axially secured at one axial end of the stationary housing. Rotational motion of said rotational annulus causes interaction of said stationary cam and said mechanical link to induce cyclical radial movement of said radial vane. The bore of said stationary housing is contoured and each said radial vane is proportioned to maintain a constant distance of separation between the radially outermost axial edge said radial vane and the bore of said stationary housing. A seal is installed on the radially outermost axial edge of each said radial vane and radially constrained by direct contact with the bore of said stationary housing. The disclosure demonstrates that two such assemblies rotationally coupled can collectively fulfill the functional requirements of a heat engine cycle. The disclosure presents an approach for lubrication by centrifugally induced circulation of liquid media but is silent regarding means for closing the axial ends of segmental chambers and means for thermal control for internal components.
U.K. Pat. No. 468,390 presents improvements in and relating to rotary piston machines and features uninterrupted combustion of fuel at constant pressure, combustion of different fuel types and control by throttle like devices. The disclosure also demonstrates that two rotary vane machines may be non-mechanically coupled to collectively fulfill the four functional phases of a heat engine cycle. Disclosure drawings illustrate a rotary device consisting of a stationary containment cylinder, a rotational shaft and a solid rotor fitted with six radial vane slots and six radial vanes. The disclosure is silent regarding issues related to lubrication, thermal control and other functional viability considerations.
U.S. Pat. No. 6,024,549 discloses an independent vane rotary machine in which each radial vane is accommodated within a radial slot installed in a rotational annulus and each axial end of each said radial vane is radially constrained by an axially extended flange installed on the outer periphery of a rotating disk. Each said rotating disk is diametrically proportioned to closely approach a circular bore in a stationary containment cylinder and radially constrains said radial vane to maintain a constant distance between the radially outermost axial edge of said radial vane and said containment cylinder bore. A seal is installed on the outer axial edge of each said radial vane resiliently closes the gap between said radial vane and said containment cylinder bore. An axially extending compression spring is installed at each axial end of the rotational assembly. Each said axially extending compression spring is proportioned to induce resilient axial contact of its contiguous said rotating disk and the axial end of said rotational annulus and thus close the axial ends of segmental chambers but accommodate variations in component geometry caused by thermal expansion or mechanical loading. Disclosure includes a system for dispersion of thermal control and lubricant media within said rotational annulus and for extraction of condensate and excess lubricant.
U.S. Pat. No. 6,349,695 discloses an independent rotary vane rotary machine in which each radial vane is radially constrained by radial vane retainer concentrically secured on a rotational shaft. Each said radial vane is accommodated within a radial slot installed in a rotational annulus. Each said radial slot in said rotational annulus additionally accommodates and annularly constrains one pair of radially extending compression springs. Said radially extending compression springs are constrained and proportioned to resiliently maintain said rotational annulus and said rotational shaft in synchronous rotation. An articulated radial vane extension is installed between each said radial vane and said radial vane retainer and each said articulated radial vane extension is proportioned to maintain a constant distance between the outer axial edge of each said radial vane and the circular bore of a stationary containment cylinder. A seal installed on the outer axial edge of each said radial vane is proportioned to resiliently close the gap between the outer axial edge said radial vane and the bore of said stationary housing. One rotating disk diametrically proportioned to closely approach the bore of said stationary containment cylinder is installed at each axial end of said rotational annulus and one axially extending compression spring is installed at each axial end of the rotational assembly. Said axially extending compression spring is proportioned to induce the contiguous said rotating disk to make resilient axial contact with the axial end of said annulus and thus close the axial ends of segmental chambers but accommodate variations in component geometry caused by thermal expansion or mechanical loading. Disclosure includes a system for the movement of thermal control and lubricant media within said rotor annulus and for extraction of excess lubricant.
It is believed that none of the above disclosures taken singly or combination describes the form and functional features of the invention presented in this disclosure.
BRIEF SUMMARY OF THE INVENTION
This disclosure presents a rotary vane internal combustion machine for efficient production of rotational mechanical energy through internal combustion of liquid or gaseous fuel. The machine functions in general accordance with the principles of the Carnot heat engine cycle but mechanical manipulation of working fluid is accomplished without the use of reciprocating components and combustion is performed as a continuously sustained process. The machine primarily consists of a stationary containment and foundation structure and an internal rotationally dynamic mechanical assembly.
The stationary containment and foundation structure consists of a containment cylinder with circular bore installed with a closure structure at each axial end. Ports for induction of combustion air and discharge of combustion products are mutually interspersed throughout the axial length of said containment cylinder and are peripherally dispersed and radially oriented to minimize their collective sector width and to symbiotically promote their functional efficiency. Additional ports are also installed as required for induction of fuel, externally supplied ignition energy, and internal thermal control and lubrication media, and for maintaining continuous internal combustion.
The internal rotationally dynamic assembly primarily consists of one rotational armature, one rotational shaft, a synchronizing gear set, and a set of radial vanes. Said rotational armature features a circular cross section proportioned with an outside diameter equal to approximately eighty five percent of the bore of said containment cylinder and is configured as a structural annulus. Said rotational armature is fitted with a number of axial radial vane slots uniformly distributed around its periphery with each said radial vane slot extending through its axial length and through its annulus thickness. Said rotational armature is simply supported by one low friction rotational bearing installed at each axial end and is aligned with its rotational axis parallel to but radially separated from the bore axis of said containment cylinder. Said rotational shaft axially passes through said rotational armature and a low-friction rotational bearing installed in each said end closure structure. Said rotational shaft is aligned to rotate on an axis parallel to but radially separated from the rotational axis of said rotational armature. The axial ends of said rotational shaft are configured as necessary to mechanically interface with external rotary power devices. A radial vane retainer is concentrically secured on said rotational shaft within said rotational armature.
Said synchronizing gear set maintains a fixed rotational relationship between said rotational armature and said rotational shaft. One main synchronizing gear is secured on one axial end of said rotational armature and one main synchronizing gear is adjacently secured on said rotational shaft. Both said rational armature main synchronizing gear and said rotational shaft main synchronizing gear are identical in pitch diameter and pitch. Said rational armature main synchronizing gear intermeshes with a peripheral rotational armature auxiliary synchronizing gear and said rotational shaft main synchronizing gear intermeshes with a peripheral rotational shaft auxiliary synchronizing gear. Both said rotational armature auxiliary synchronizing gear and said rotational shaft auxiliary synchronizing gear are identical in pitch diameter and pitch and share a common rotational axis. Said rotational armature auxiliary synchronizing gear and said rotational shaft auxiliary synchronizing gear are mechanically interlocked in the phase relationship necessary to maintain the appropriate rotational alignment of said rotational armature and said rotational shaft.
Each said radial vane slot accommodates one radial vane. Each said radial vane is free to radially slide between two axially aligned bearing surfaces. Each said radial vane is radially constrained by an articulated radial vane extension secured to its inner axial edge and secured to the outer periphery of said radial vane retainer. The radial extent of each said radial vane and each said articulated radial vane extension are proportioned to maintain a small gap between the outer axial edge of said radial vane and the bore of said containment cylinder. A mechanical radial vane edge seal is installed on the outer axial edge of each said radial vane to resiliently close the gap between said radial vane and the bore of said containment cylinder.
A freely rotating disk and axially extending compression spring are installed at each end of said rotational armature. Each said axial compression spring is proportioned to induce the axial face of its associated freely rotating disk to maintain axial contact with one axial end of said rotational armature to close the axial ends of segmental chambers, axially constrain the radial vanes, and resiliently accommodate variations in component geometry caused by thermal expansion and/or mechanical loading.
The internal axial cavity in said rotational armature is contoured to enlarge the surface area exposed to thermal control media and, hence, facilitate internal thermal control. Ports installed in said end closure structures and appropriate internal rotational components facilitate the axial movement of internal thermal control and lubrication media.
Necessary ancillary support items consist of an air supply fan, a fuel delivery system, an externally powered rotational device to initiate machine rotation, an electrically powered igniter to initiate combustion, and a lubricant management system.
The drawings presented in this disclosure illustrate the primary geometric and component features appropriate to obtaining the measures of thermodynamic efficiency, mechanical efficiency, and thermal control necessary for demonstration of functional viability.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a side elevation to illustrate the axial disposition of components of the external general assembly. For the purposes of this disclosure the axis of rotation is horizontal and the machine is illustrated with diagrammatic representations of ancillary components deemed appropriate for combustion of liquid fuel.
FIG.
2
and
FIG. 3
are, respectively, left hand and right hand end views of the external general assembly relative to the elevation given in FIG.
1
.
FIG. 4
is an axial section in the plane of the rotational axis to illustrate the axial disposition of significant internal components.
FIG. 4
is supported by enlarged illustrations DET.
4
A and DET.
4
B that highlight significant mechanical details. Please note that numerical identification of repeatedly illustrated identical items is constrained to the minimum deemed necessary for adequate presentation in order to avoid excessive nomenclature density. Cross section indicators given in
FIG. 4
axially locate cross section illustrations later discussed.
FIG. 5
is a cross section close to the middle of the axial length to illustrate the radial disposition of significant internal components.
FIG. 5
is supported by enlarged illustrations DET.
5
A and DET
5
B.
FIG. 6
is a cross section close to the end of the rotational armature to illustrate the arrangements for support of radial vanes close to their axial ends and the arrangement of ports for conduit of internal thermal control and lubrication media.
FIG. 7
is a cross section at the inside face of the sealing ring to illustrate the integration of said sealing ring and containment cylinder and the arrangement ports for conduit of internal thermal control and lubrication media.
FIG. 8
is a cross section to illustrate the geometric features of one annular axial compression spring.
FIG. 8
is supported by enlarged illustration DET.
8
A.
FIG. 9
is a cross section at the inside face of one wear ring to illustrate the interfaces of said wear ring with other contiguous axial end components.
FIG. 10
is a cross section through the mid-length of one end closure structure to illustrate the integration of one rotational armature support bearing.
FIG. 11
is a cross section through one bearing carrier to illustrate the integration of one rotational shaft support rotational bearing and the port for induction of internal thermal control and lubrication media.
FIG. 12
is a cross section through one bearing carrier to illustrate the arrangement of rotational bearings for the rotational shaft, synchronizing gear shaft, and auxiliary drive shaft and the arrangement of the port for extraction of thermal control media.
FIG. 13
is a cross section through the gear case to illustrate the integration of the rotational shaft synchronizing gears and auxiliary drive gear.
FIG. 14
is a cross section through the gear case to illustrate the integration of the rotational armature synchronizing gears.
FIG. 15
is a compound cross section through the gear case to illustrate the integration of the rotational shaft and rotational armature synchronizing gears and the rotationally interlocking components.
FIG. 15
is supported by enlarged illustration DET.
15
A.
FIG. 16
is a horizontal compound sectional plan view to illustrate the axial and lateral disposition and integration of synchronization and auxiliary drive gears and directly associated components.
FIG. 17
is a cross section through one end closure structure to illustrate the integration of one rotational armature rotational bearing.
FIG. 18
is a cross section through the stationary containment cylinder to illustrate the general arrangement and details of the combustion air induction ports, combustion product discharge ports, and continuous combustion ports.
FIG. 19
is an elevation of one typical radial vane to illustrate significant geometric and assembly features of its directly associated components.
FIG. 20
is an elevation of one radial vane to illustrate the installation of one detent protrusion on each axial end of one radial vane.
DETAILED DESCRIPTION OF THE INVENTION
Referring to
FIG. 1
, FIG.
2
and
FIG. 3
, containment cylinder
1
, end closure structure
2
and end closure structure
3
are the principal stationary containment and foundation components. Said containment cylinder
1
features a set of closely spaced fins to accomplish thermal control for external containment structure. Thermal control for external containment structure may also be accomplished by circulation of thermal control media through integral structural passageways. Said end closure structure
2
and said end enclosure structure
3
are mechanically secured to said containment cylinder
1
by machine screws
4
. Rotational shaft bearing carrier
5
and bearing retainer
7
are secured by machine screws
6
and
8
respectively. Flange coupling
9
provides the interface for conduit of rotational mechanical energy to an external power transmission system. Integral gearbox
10
secured to end closure structure
3
by machine screws
11
contains synchronizing gears later discussed. Air supply fan
12
provides atmospheric air for combustion and internal thermal control. Externally energized device
13
provides rotational mechanical energy for initiation of rotation and electrical alternator
14
generates electrical energy to power peripheral auxiliary support systems. Conduit
15
conducts combustion air through control valve
16
to combustion air inlet manifold
17
. Conduit
18
conducts internal thermal air control through control valve
19
to internal thermal control air and lubricant injector
20
. Fuel control valve
21
and fuel injector
22
provide conduit for a controlled supply of liquid or gaseous fuel through the wall of said containment cylinder
1
for internal combustion. Electrical igniter
23
provides thermal input as necessary to initiate combustion. Manifold
24
and conduit
25
dispose of combustion product. Pump
26
, heat exchanger
27
, and said thermal control air and lubricant injector
20
deliver finely dispersed lubricant to internal mechanically dynamic components. Conduit
28
and conduit
29
respectively conduct excess lubricant and discharged internal thermal control air to lubricant coalescer and reservoir assembly
30
. Conduit
31
vents said lubricant coalescer and reservoir assembly
30
to said air supply fan
12
.
With reference to
FIG. 4
, DET.
4
A and DET.
4
B, rotational shaft
32
is radially constrained by one low-friction rotational shaft support bearing
33
installed near each axial end and axially constrained by annular collars
35
, and
36
in conjunction with axial retainers
37
and
38
. Each said rotational shaft support bearing
33
is protected from contamination by bearing seal
34
and is secured within its related bearing carrier by a bearing retainer
7
. Flange coupling
9
is coaxially installed on rotational shaft
32
, rotationally secured by rotational shaft spline
39
, and axially secured by retainer
40
. Rotational armature
41
is a hollow structural cylinder with a circular cross section and with an integrally connected hollow extension of reduced diameter at each axial end. Said rotational armature
41
is radially and axially constrained by one low-friction roller bearing
42
at each axial end. An axial retainer
43
secures each said bearing
42
within its related end closure structure. One axial seal ring
44
is installed at each axial end of said rotational armature
41
. The outer diameter of each said axial seal ring
44
is proportioned to make a close tolerance sliding fit with the bore diameter of said containment cylinder
1
. Each said axial seal ring
44
features an axially extended flange
45
on its outer periphery and an axially extended flange
46
on its inner periphery. Said axially extended flange
45
is fitted with circumferential channels
47
. Axial opening
48
in each axial seal ring
44
accommodates one detent protrusion
49
installed on one radial vane
50
. One wear ring
51
and one axial spring
52
are coaxially accommodated within the inner periphery of said axially extended flange
45
. One axial retainer ring
53
is concentrically installed on each axial end of said rotational armature
41
and axially constrained by axial retainer
54
. Each said axial spring
52
is proportioned to exert a resilient axial force to maintain resilient contact between the axial face of its adjacent axial seal ring
44
and the adjacent axial end of said rotational armature
41
. Each said radial vane
50
is radially secured to the radially outermost axial edge of one articulated radial vane extension
55
by hinge pin
56
. The radially innermost axial edge of each articulated said radial vane extension
55
is secured to radial vane retainer
57
by hinge pin
58
. Radial vane retainer
57
is concentrically installed on said rotational shaft
32
and rotationally secured by mechanical spline
59
. Rotational shaft main synchronizing gear
60
is concentrically installed on said rotational shaft
32
and secured by spline
61
and axial retainer
62
. Rotational armature main synchronizing gear
63
is concentrically installed on said rotational armature
41
and secured by spline
64
and axial retainer
65
. Conduit
18
in association with port
66
and conduit
29
in association with port
67
are interfaces for supply and discharge of internal thermal control air. Axial port
68
in said wear ring
51
provides conduit for axial movement of internal thermal control and lubrication media. Peripheral drain channel
69
and drain port
70
provide conduit for discharge of excess liquid lubricant to discharge conduit
28
.
With reference to
FIG. 5
, DET.
5
A, and DET.
5
B, rotational axis
71
of rotational shaft
32
is coincident with the axis of the bore
84
of containment cylinder
1
. Rotational axis
72
of rotational armature
41
and rotational axis
71
are separated by radial distance “X.” Rotational armature
41
features a radial vane slot
73
extending through its radial thickness at each of twelve centers equidistantly spaced around its outer periphery and. Within each said radial vane slot
73
a set of four radial springs
75
resiliently constrain said radial vane
50
between two radial vane linear bearings
74
. The bearing surface of each said linear bearing
74
incorporates horizontal grooves
76
and vertical grooves
77
to facilitate surface lubrication and ventilation. One radial vane edge seal
78
is secured on the radially outermost axial edge of each said radial vane
50
. One hinge pin
56
secures the radially outermost axial edge of one articulated radial vane extension
55
to each said radial vane
50
. One hinge pin
58
secures the radially innermost axial edge of each said articulated radial vane extension
55
to radial vane retainer
57
. Rotational armature
41
also features one surface area augmentation slot
79
equidistantly interspaced between each set of two adjacent said radial vane slots
73
and proportioned to radially extend partially through its radial thickness from its inner periphery. Port
80
provides conduit for combustion air from manifold
17
through the wall of containment cylinder
1
. Port
81
provides conduit for discharge of combustion product to manifold
24
. Port
82
provides conduit of combustion product to maintain controlled continuous combustion. Fuel injector
22
provides conduit for induction of fuel and igniter
23
provides conduit for electrical power for combustion initiation.
With reference to
FIG. 6
, the radial thickness of rotational armature
41
is increased at each axial end and the radial width of each radial vane slot
73
is reduced to extend only partially through its radial thickness. The radial width of each radial vane
50
is reduced at each axial end to be compatible with the local geometry of said radial vane slot
73
. Each said radial vane
50
is installed between two radial bearing inserts
74
and resiliently constrained by four radial springs
75
as previously discussed. A number of axial ports
83
provide conduit for movement of internal thermal control and lubrication media. Radial vane retainer
57
is concentrically installed on rotational shaft
32
and rotationally secured by spline
59
.
With reference to
FIG. 7
, the outer diameter of axial seal ring
44
is proportioned to maintain a close tolerance rotationally sliding fit with containment cylinder bore
84
. The inner periphery of said axial seal ring
44
is proportioned to maintain radial clearance from the outer periphery of rotational armature
41
. Axial ports
85
provide conduit for movement of internal thermal control and lubrication media. Axial detent opening
48
is arranged to accommodate one radial vane detent protrusion as previously discussed. Radial vane retainer
57
is concentrically installed on rotational shaft
32
and rotationally secured by closely fitted spline
59
.
With reference to FIG.
8
and DET.
8
A, axial spring
52
is a quasi-flat ring with its outer diameter proportioned to maintain a small distance of separation with the inside surface of seal ring flange
45
and its inner diameter proportioned to maintain a sliding fit with the outer surface seal ring flange
46
Said axial spring
52
features a semi-independent radial spring segment
86
at each of twenty-four equidistantly spaced radial centers. Each said spring segment
86
is integrally secured on a common root
87
and, in the axial plane, is configured as a single arc. For the purpose of this disclosure annular axial compression spring
52
is illustrated as a single entity however a multiplicity of annular axial spring entities may be selected to fulfill particular service requirements. Arrangements of other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 9
, the outer diameter of wear ring
51
is proportioned to make a close tolerance sliding fit with the inside surface of seal ring flange
45
and its inner diameter proportioned to maintain a radial clearance with rotational armature
41
. Said wear ring
51
is axially constrained through axial face contact with axial retainer ring
53
. Axial ports
68
provide conduit for movement of internal thermal control and lubrication media. Arrangements of other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 10
, containment cylinder end structure
2
accommodates rotational bearing
42
for support of rotational armature
41
. Arrangements of other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 11
, bearing carrier
5
accommodates one rotational bearing
33
for support of rotational shaft
32
and port
66
for conduit for induction of internal thermal control and lubrication media. Arrangements of other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 12
, gear case
10
accommodates one rotational bearing
33
for support of rotational shaft
32
and one rotational bearing
88
each for support of auxiliary rotational shafts
89
and
90
. Port
67
provides conduit for discharge of internal thermal control media. Other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 13
, rotational shaft main synchronizing gear
60
is coaxially installed on rotational shaft
32
and rotationally secured by spline
61
. Said rotational shaft main synchronizing gear
60
meshes with rotational shaft synchronizing coupling gear
91
and with auxiliary drive gear
92
. Said rotational shaft synchronizing coupling gear
91
is coaxially installed on auxiliary rotational shaft
89
and rotationally secured by spline
93
. Said auxiliary drive gear
92
is coaxially installed on auxiliary rotational shaft
90
and rotationally secured by spline
94
. Coupling gear lock screws
95
will be discussed later. Other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 14
, rotational armature main synchronizing gear
63
is coaxially installed on rotational armature
41
and rotationally secured by spline
64
. Said rotational armature main synchronizing gear
63
meshes with rotational armature synchronizing coupling gear
96
. Said rotational armature synchronizing coupling gear
96
is secured on closely fitted bushing
97
and coaxially installed on said auxiliary rotational shaft
89
. Coupling gear lock screws
95
will be discussed later. Other illustrated features were discussed in prior paragraphs.
With reference to FIG.
15
and DET.
15
A, as previously noted said rotational shaft main synchronizing gear
60
meshes with rotational shaft synchronizing coupling gear
91
and rotational armature main synchronizing gear
63
meshes with said rotational armature synchronizing coupling gear
96
. Said rotational shaft synchronizing coupling gear
91
and said rotational armature synchronizing coupling gear
96
are concentrically installed on auxiliary rotational shaft
89
. The vertical separation of rotational shaft axis
71
from rotational armature axis
72
incurs an angular displacement
98
between the radial reference axis
99
of said rotational shaft synchronizing coupling gear
91
and the radial reference axis
100
of said rotational armature synchronizing coupling gear
96
. For the purpose of this disclosure said angular displacement
98
is accommodated by rotational adjustment of said rotational armature synchronizing coupling gear
96
on bushing
97
. Coupling gear lock screws
95
rigidly connect said rotational shaft synchronizing coupling gear
91
and said rotational armature synchronizing coupling gear
96
subsequent to rotational adjustment. Alternatively said angular displacement
98
may be accommodated by adjustments in the angular relationship between gear teeth and spline in any one of the gear components.
With reference to
FIG. 16
, the axial end of rotational shaft
32
is radially constrained by rotational bearing
33
. Said rotational bearing
33
and bearing seal
34
are constrained within gear case structure
10
by bearing retainer
7
. Rotational shaft main synchronizing gear
60
is coaxially installed on rotational shaft
32
, rotationally secured by spline
61
, and axially secured by retainer
62
. Rotational armature main synchronizing gear
63
is coaxially installed on rotational armature
41
, rotationally secured by spline
64
, and axially secured by retainer
65
. Auxiliary rotational shaft
89
and auxiliary rotational shaft
90
are each individually and independently constrained by rotational bearings
88
and
103
. Concentric rotational bearings
88
and
103
are axially constrained by concentric shaft collars
104
and
105
and axially secured by bearing seal
106
, bearing retainer
107
, and machine screws
108
. Rotational shaft synchronizing coupling gear
91
is concentrically installed on auxiliary rotational shaft
89
and rotationally secured by spline
93
. Rotational armature synchronizing coupling gear
96
is concentrically installed on auxiliary rotational shaft
89
and radially constrained by rotational bushing
97
. Said Rotational shaft synchronizing coupling gear
91
and said armature synchronizing coupling gear
96
are axially constrained by axial retainer
101
. Auxiliary power drive gear
92
is concentrically installed on auxiliary rotational shaft
90
, rotationally secured by spline
94
, and axially constrained by axial retainer
102
. Other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 17
, rotational armature
41
is radially constrained by rotational armature support bearing
42
secured in end closure structure
3
. Other illustrated features were discussed in prior paragraphs.
With reference to
FIG. 18
, axis
109
of combustion air induction port
80
and axis
110
of combustion product discharge port
81
are arranged horizontally and vertically respectively. Said axes intersect at a rotational angle of approximately
213
degrees from top dead center in the direction of rotation and at a radial distance equal to approximately 90% of the radius of containment cylinder bore
84
. Said combustion air induction port
80
and said combustion products discharge port
81
each comprise a group of elongated openings uniformly distributed throughout the axial length of containment cylinder
1
and extending through its wall thickness. The elongated openings of said combustion products discharge port
81
are axially interspersed between the openings of said combustion air induction port
80
. Continuous combustion port
82
axially centered on radial axis
111
consists of a group of peripherally elongated channels uniformly dispersed within the axial length of containment cylinder
1
and extending partially through its radial thickness.
With reference to
FIG. 19
, each radial vane assembly consists of one radial vane
50
, one articulated radial vane extension
55
, and one radial vane edge seal
78
. Each said radial vane
50
is a quasi-rectangular flat panel structure configured to feature one half of a hinge connection along its radially innermost axial edge. Each said articulated radial vane extension
55
is a quasi-rectangular flat panel structure configured to feature one half of a hinge connection along each axial edge. The radially innermost axial edge of each said radial vane
50
is secured to one axial edge of one articulated radial vane extension
55
by one hinge pin
56
. The innermost axial edge of each articulated radial vane extension
55
is secured to radial vane retainer
57
by hinge pin
58
. One said radial vane edge seal
78
is secured in the radially outermost edge of each said radial vane
50
. Said radial vane edge seal
78
consists of a relatively thin spring-grade steel structure configured to feature an axial bifurcation on its outer peripheral edge and proportioned to maintain resilient contact with containment cylinder bore
84
. Said radial vane edge seal
78
is secured to radial vane
50
by a closely fitted journal bearing interface proportioned to allow partial relative rotation of said radial vane edge seal
78
relative to radial vane
50
.
With reference to
FIG. 20
, one detent pin
49
configured as a solid cylindrical structure with a circular cross section is integrally secured at each axial end of one radial vane
50
.
Claims
- 1. A gear synchronized articulated vane rotary machine for the production of rotational mechanical energy by internal combustion of liquid or gaseous fuel and comprising:a stationary containment cylinder with a circular bore installed with axially interspersed combustion air inlet ports and combustion product discharge ports and installed with ports for induction of fuel, for combustion initiation, and for sustaining continuous combustion; an end closure structure mechanically secured at each axial end of said containment cylinder and installed with ports for induction and discharge of internal thermal control and lubrication media, a rotational armature configured as a hollow structural annulus with a circular cross-section, diametrically proportioned to equal approximately eighty five percent of the bore of said containment cylinder installed with a reduced diameter axial extension at each axial end; a low-friction rotational bearing installed on each said reduced diameter axial extension of said rotational armature and arranged to constrain said rotational armature within the bore of said containment cylinder with an axis of rotation parallel to but radially separated from, the axis of said bore; a surface area augmentation slot installed on the inner periphery of said rotational armature at each of twelve equidistant radial centers with each said area augmentation slot proportioned to extend partially through its axial length and radial thickness; a radial vane slot equidistantly interspersed between said area augmentation slots on the inner periphery of said rotational armature with each said radial vane slot proportioned to extend through its axial length and radial thickness; a radial vane support linear bearing slot installed in each face of each said radial vane slot with each said radial vane support linear bearing slot proportioned to extend through the axial length of said radial vane slot and partially through its radial width; a radial compression spring slot installed in one face of each said radial vane support linear bearing slot with each said radial compression spring slot proportioned to extend through the axial length of said linear bearing slot and partially through its radial width; a radial vane installed within each said radial vane slot with the outer axial edge of each said radial vane configured to accommodate a radial vane-edge seal and its inner axial edge configured as one side of a pivotal hinge; a radial vane support linear bearing installed within each said radial vane support linear bearing slot with each said radial vane support linear bearing proportioned to maintain sliding contact with contiguous said radial vane; a radial compression spring installed at each of four equidistant centers within each said radial compression spring slot with each said radial compression spring radially proportioned to maintain resilient pressure contact between the adjacent said radial vane support linear bearing and contiguous said radial vane; a radial vane articulated extension pivotally secured to the inner axial edge of each said radial vane and radially proportioned to maintain a small distance of separation between the outer axial edge of said radial vane and the bore of said containment cylinder; a radial vane edge seal secured to the outer axial edge of each said radial vane with said radial vane edge seal axially bifurcated on its outer peripheral edge and radially proportioned to maintain resilient contact with the bore of said containment cylinder; a radial vane detent pin constructed as a circular structural cylinder axially installed and integrally secured at each axial end of one said radial vane; a rotational shaft axially proportioned to extend through the axial length of said rotational armature and each said end closure structure with its axial ends configured to interface with other rotational power components; a low-friction rotational bearing installed in each said end closure structure proportioned and arranged to collectively constrain said rotational shaft with a rotational axis concentric with the bore axis of said containment cylinder; a radial vane retainer coaxially installed and rotationally secured on said rotational shaft and pivotally secured to the inner axial edge of one said articulated radial vane extension at each of twelve radial centers equidistantly spaced around its outer periphery; a rotational armature main synchronizing gear coaxially secured on the axial end of one said rotational armature axial extension; a rotational shaft main synchronizing gear coaxially secured on said rotational shaft and proportioned to be identical in pitch circle diameter and tooth pitch to said rotational armature main synchronizing gear; a rotational shaft synchronizing coupling gear coaxially secured on an auxiliary rotational shaft and proportioned and arranged to mesh with said rotational shaft main synchronizing gear; a rotational armature synchronizing coupling gear coaxially installed and axially secured on said auxiliary rotational shaft, proportioned to be identical in pitch circle diameter to said rotational shaft synchronizing coupling gear, and arranged to mesh with said rotational armature main synchronizing gear; an interlocking machine screw at each of four equidistantly spaced radial centers on the axial face of said rotational shaft synchronizing coupling gear and proportioned to rotationally integrate said rotational shaft synchronizing coupling gear and said rotational armature synchronizing coupling gear; an axial seal ring installed at each axial end of the bore of said containment cylinder with each said axial seal ring diametrically proportioned to make a sliding fit within the bore of said containment cylinder and collectively close the axial ends of all said radial vane slots and with each said axial seal ring installed with an axially extended flange on its outer periphery, one radially elongated radial vane detent slot, and with thermal control ports; an axial retainer ring concentrically installed and axially secured on each said rotational armature axial extension and diametrically proportioned to rotate within the peripheral flange of said axial seal ring; a wear ring installed between the axially opposing faces of one said axial retainer ring and one said axial seal ring with said wear ring diametrically proportioned to maintain a sliding fit within the peripheral flange of said axial seal ring and installed with thermal control ports; an axial compression spring installed between one said wear ring and one said axial seal ring with said axial compression spring diametrically proportioned to be accommodated within the peripheral flange of said axial seal ring and axially proportioned to maintain resilient bearing contact between the axial face of its adjacent axial seal ring and one axial end of said rotational armature; a fan and air distribution system suitably proportioned and installed to provide a controlled supply of atmospheric air for internal combustion and internal thermal control; an externally powered rotational device suitably proportioned installed for initiation of rotation; an externally powered ignition system suitably proportioned and installed for initiation of internal combustion.
US Referenced Citations (7)