Patent Application
20220190661
The invention relates in general to a new and improved electric motor/generator, and in particular to an improved system and method for producing rotary motion from an electro-magnetic motor or generating electrical power from a rotary motion input.
Electric motors use electrical energy to produce mechanical energy, very typically through the interaction of magnetic fields and current-carrying conductors. The conversion of electrical energy into mechanical energy by electromagnetic means was first demonstrated by the British scientist Michael Faraday in 1821 and later quantified by the work of Hendrik Lorentz.
A magnetic field is generated when electric charge carriers such as electrons move through space or within an electrical conductor. The geometric shapes of the magnetic flux lines produced by moving charge carriers (electric current) are similar to the shapes of the flux lines in an electrostatic field. Magnetic flux passes through most metals with little or no effect, with certain exceptions, notably iron and nickel. These two metals, and alloys and mixtures containing them, are known as ferromagnetic materials because they concentrate magnetic lines of flux. Areas of greatest field strength or flux concentration are known as magnetic poles.
In a traditional electric motor, a central core of tightly wrapped current carrying material creates magnetic poles (known as the rotor) which spins or rotates at high speed between the fixed poles of a magnet (known as the stator) when an electric current is applied. The central core is typically coupled to a shaft which will also rotate with the rotor. The shaft may be used to drive gears and wheels in a rotary machine and/or convert rotational motion into motion in a straight line.
Generators are usually based on the principle of electromagnetic induction, which was discovered by Michael Faraday in 1831. Faraday discovered that when an electrical conducting material (such as copper) is moved through a magnetic field (or vice versa), an electric current will begin to flow through that material. This electromagnetic effect induces voltage or electric current into the moving conductors.
Current power generation devices such as rotary alternator/generators and linear alternators rely on Faraday's discovery to produce power. In fact, rotary generators are essentially very large quantities of wire spinning around the inside of very large magnets. In this situation, the coils of wire are called the armature because they are moving with respect to the stationary magnets (which are called the stators). Typically, the moving component is called the armature and the stationary components are called the stator or stators.
Motors and generators used today produce or utilize a sinusoidal time varying voltage. This waveform is inherent to the operation of these devices.
In most conventional motors, both linear and rotating, enough power of the proper polarity must be pulsed at the right time to supply an opposing (or attracting) force at each pole segment to produce a particular torque. In conventional motors at any given instant only a portion of the coil pole pieces is actively supplying torque.
With conventional motors a pulsed electrical current of sufficient magnitude must be applied to produce a given torque/horsepower. Horsepower output and efficiency then is a function of design, electrical input power plus losses.
With conventional generators, an electrical current is produced when the rotor is rotated. The power generated is a function of flux strength, conductor size, number of pole pieces and speed in RPM. However output is a sinusoidal output with the same losses as shown in conventional electric motors.
A conventional linear motor/generator, on the other hand, may be visualized as a typical electric motor/generator that has been cut open and unwrapped. The “stator” is laid out in the form of a track of flat coils made from aluminum or copper and is known as the “primary” of a linear motor. The “rotor” takes the form of a moving platform known as the “secondary.” When the current is switched on, the secondary glides past the primary supported and propelled by a magnetic field. A Linear generator works in the same manner but mechanical power provides the force to move the rotor or secondary past magnetic fields.
In traditional generators and motors, the pulsed time varying magnetic fields produces undesired effects and losses, i.e. Iron Hystersis losses, Counter-EMF, inductive kickback, eddy currents, inrush currents, torque ripple, heat losses, cogging, brush losses, high wear in brushed designs, commutation losses and magnetic buffeting of permanent magnets. In many instances, complex controllers are used in place of mechanical commutation to address some of these effects.
In motors and generators that utilize permanent magnets it is desirable to increase magnetic flux densities to achieve more efficient operation. Most permanent magnet motor/generators used today rely on permanent magnets such as Neodymium magnets. These magnets are the strongest of the man made magnetic materials. Due to their strategic value to industry and high costs it is desirable to increase flux densities without relying on a breakthrough in material composition of these magnets or manufacturing high density special purpose magnet shapes and sizes.
In motors or generators, some form of energy drives the rotation and/or movement of the rotor. As energy becomes more scarce and expensive, what is needed are more efficient motors and generators to reduce energy costs.
In response to these and other problems, there is presented various embodiments disclosed in this application, including methods and systems of increasing flux density by permanent magnet manipulation. Specifically, methods and systems of increasing flux density utilizing commercially available shapes or sizes that can be chosen based on lower cost rather than flux density. Also described are methods of producing mechanical power by moving a coil/s coupled to a core into a magnet assembly with an increased flux density or producing an electrical output power when the coils are mechanically forced through the magnetic assembly with an increased flux density. In certain aspects, within the magnetic cylinder or magnet assembly magnetic flux lines are created and increased by the configuration of permanent magnets or electromagnets and are restrained within the magnetic cylinder or magnet assembly until exiting at predetermined locations.
In certain aspects presented herein, non-pulsating or non-sinusoidal DC current is applied to the power terminals which produces a Lorentz force at each length of coil conductor. This force is applied continuously throughout the entire rotation of the rotor hub without variations in amplitude or interruptions in output power. There are no pole pieces to provide magnetic attraction or repulsion consequently, there is reduced torque ripple, polarity reversals or interruptions in power output while the poles are in the process of reversing, thus producing more efficient output than traditional motors
When certain aspects of the disclosed embodiments are used as a generator non pulsating or non-sinusoidal DC current is produced at the power terminals. A Lorentz force at each length of coil conductor and across all coils induces an output current flow. This output is supplied continuously throughout the entire rotation of the rotor hub without variations in amplitude, polarity reversals, or interruptions in output power. There are no pole pieces to provide magnetic attraction or repulsion which produces a current output more efficiently than traditional generators.
Certain aspects of the disclosure reduces or eliminates the undesired effects and losses of traditional generators and motors discussed above, including Iron Hystersis losses, Counter-EMF, inductive kickback, eddy currents, inrush currents, torque ripple, heat losses, cogging, brush losses, sparking and high wear in brushed designs, commutation losses and magnetic buffeting of permanent magnets.
In summary, certain aspects of the various disclosed embodiments may provide the following benefits:
Unlike conventional brush rectified or PWM controller motor/generators, the coils in aspects of this invention are in continuous contact with the Permanent Magnet field and thus produce a non-varying continuous torque or output.
Complex PWM drives and controllers, commutators, etc (and the associated losses) may not be not required since certain aspects of the invention produce and utilize DC current directly.
If automatic speed control for a given load is required, complex position indication is not required. A much simpler RPM indication and a varying voltage/current relationship is all that is required to control speed.
Using the magnetic cylinder/single pole magnet assembly concept utilizing permanent magnets an otherwise unachievable, extremely strong magnetic field is generated without consuming any electrical power.
Though a Counter EMF field is produced by any induced current flow, due to the magnet cylinder and core design there is no direct impact on coil movement that hinders such movement.
Iron Hysteresis losses are essentially eliminated as only two points on the core experience any hysteresis loss at all and then only twice per revolution.
Eddy current losses are essentially eliminated as the core does not move perpendicular to the flux lines
Cogging is also essentially eliminated as the core forces are balanced and equal in all directions
There is little inrush current as there is no need to saturate large masses of iron
100% of the copper windings in the coil is utilized to take advantage of Lorentz forces thus there is no wasted copper winding as in conventional motor/generators.
Inductive kickback from the rising and collapsing sinusoidal waveform is eliminated
Like other DC motors reversal of torque is simply a reversal of input polarities.
These and other features, and advantages, will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.
It is important to note the drawings are not intended to represent the only aspect of the invention.
Specific examples of components, signals, messages, protocols, and arrangements are described below to simplify the present disclosure. These are, of course, merely examples and are not intended to limit the invention from that described in the claims. Well-known elements are presented without detailed description in order not to obscure the present invention in unnecessary detail. For the most part, details unnecessary to obtain a complete understanding of the present invention have been omitted inasmuch as such details are within the skills of persons of ordinary skill in the relevant art. Details regarding control circuitry, power supplies, or circuitry used to power certain components or elements described herein are omitted, as such details are within the skills of persons of ordinary skill in the relevant art.
When directions, such as upper, lower, top, bottom, clockwise, or counter-clockwise are discussed in this disclosure, such directions are meant to only supply reference directions for the illustrated figures and for orientation of components in the figures. The directions should not be read to imply actual directions used in any resulting invention or actual use. Under no circumstances, should such directions be read to limit or impart any meaning into the claims.
Most motors and generators used today require or produce a sinusoidal time varying voltage referred to as Alternating Current (AC). When Direct Current is utilized it must first be inverted and pulsed to replicate an AC waveform to produce the desired current or mechanical output. Certain embodiments of the present invention neither produces nor utilizes Alternating Current but instead directly produces or utilizes a non sinusoidal Direct Current without the need for rectification or commutation. This results in the elimination of Alternating Current Losses and results in a more efficient utilization of input or output power. However, certain aspects of the invention may accept any rectified A/C current and thus may be “blind” to input power supply phasing. Thus, simple rectified single phase, two phase, three phase power, etc. are all acceptable for input power depending on the configuration.
Turning now to
In certain embodiments, there may be a central iron core 110 positioned between the outer wall 102 and the inner wall 104, however other core materials maybe used when design considerations such as strength, reduction of eddy currents, cooling channels, etc. are considered.
In certain embodiments, the plurality of magnets 106 and magnets 108 may be made of out any suitable magnetic material, such as: neodymium, Alnico alloys, ceramic permanent magnets, or electromagnets. In certain embodiments, each magnet 106a or 108a in the respective plurality of magnets has the dimensions of 1″×1″×1.″ The exact number of magnets or electromagnets will be dependent on the required magnetic field strength or mechanical configuration. The illustrated embodiment is only one way of arranging the magnets, based on certain commercially available magnets. Other arrangements are possible—especially if magnets are manufactured for this specific purpose.
When the plurality of magnets 106 and 108 are arranged into the outer wall 102 and inner wall 104 to form the cylinder 100, the flux lines 101 will form particular patterns as represented in a conceptual manner by the flux lines illustrated in
Magnets on the opposing side of the cylinder 100, such as magnet 106c tend to generate flux lines 112c from the magnet 106c on the exterior wall 102 which tends to flow from the north pole of the magnet in a perpendicular manner from the face around the interior of the cylinder 100, through the iron core 110, exiting through an open end 114, then flow around the exterior of the cylinder 100, and back to an exterior face of the magnet 106c containing its south pole. Although only a few flux lines 112 on the opposing side of the cylinder 100 are illustrated for purposes of clarity, each successive magnet in the plurality of magnets will produce similar flux lines.
In certain embodiments, the interior wall 104 also produces flux lines 118. For instance, the flux line 118a from the magnet 108a on the interior wall 104 tends to flow from the north pole in a perpendicular manner from the face of the magnet, around the interior wall 104 via the iron core 110, and back through the radial center of the interior wall 104 to the face of the magnet 108a containing its south pole. Similarly, the flux line 118b from the magnet 108b on the interior wall 104 tends to flow from the north pole in a perpendicular manner from the face of the magnet, around the interior wall 104 via the iron core 110, and back through the radial center of the interior wall 104, then back to the face of the magnet 108b containing its south pole.
The magnetic flux forces for each successive magnet in the plurality of magnets 108 tend to follow these illustrative flux lines or patterns 118 for each successive magnet in the plurality of magnets 108 until the open ends 114 or 116 of the magnetic cylinder 100 are reached. Thus, the flux produced by the magnets of the interior wall 104 of the cylinder 100 have an unobstructed path to exit through the center of the cylinder and return to its opposing pole on the exterior of the cylinder.
In some embodiments, the magnetic flux lines 112 and 118 will tend to develop a stacking effect and the configuration of the exterior magnetic cylinder manipulates the flux lines 101 of the magnets in the magnetic cylinder 100 such that most or all of the flux lines 110 flows out of the open ends 114 and 116 of the cylinder 100.
In conventional configurations, the opposing poles of the magnets are usually aligned longitudinally. Thus, the field flux lines will “hug” or closely follow the surface of the magnets. So, when using conventional power generating/utilization equipment, the clearances must usually be extremely tight in order to be able to act on these lines of force. By aligning like magnetic poles radially with respect to the center 120 of the cylinder 100, the magnetic flux lines 112 and 118 tend to stack up as they pass through the center of the magnetic cylinder 110 and radiate perpendicularly from the surface of the magnets. This configuration allows for greater tolerances between coils and the magnetic cylinder 100.
In certain embodiments, the iron core 110 is positioned concentrically about the center 120 of the magnetic cylinder 100 such that the iron core is an equidistant radially from the interior wall 104, generating a representative flux pattern 101 as illustrated in
Turning now to
The cylinder 100 as presented in
Turning now to
In certain embodiments, leakage flux through the transverse slot may be reduced or eliminated by embedding a series or plurality of magnets 138 in a periphery of the rotor hub 134. The plurality of magnets 138 may be oriented similar to the cylinder magnets 106 of the cylinder 100 (not shown in
In other embodiments the iron core 132 may consist of two or more segments 140a and 140b which may be fastened together to form a complete ring or core. This configuration may have the benefit of allowing a plurality of coils to be built on conventional forms then added to ring segments.
In the illustrative embodiment, the motor/generator assembly 150 has a longitudinal shaft 152. In certain embodiments, the longitudinal shaft 152 may be made from an iron or a ferrite compound with similar magnetic properties to iron. In some embodiments, the ferrite compound or powder may be suspended in a viscous material, such as an insulating liquid, a lubricant, motor oil, gel, or mineral oil.
In certain embodiments, there may be an outer casing or housing 154 which provides structural support for the magnetic cylinder 100 and the longitudinal shaft 152. In certain embodiments, the housing 154 may be formed from any material, alloy, or compound having the required structural strength. In certain embodiments, non-ferrous materials may be used. In some embodiments, external bearings 156 (
As described with respect to
In certain embodiments, the core 132 as discussed above is positioned concentrically about a longitudinal axis 176 and within the interior cavity 124 of the magnetic cylinder 100. As described above, a transverse slot 160 formed within the interior wall 104 of the magnetic cylinder 100 allows a portion of the rotor hub 134 to be positioned within the interior cavity 124. The rotor hub 134 is also coupled to the core 132 which is also positioned within the interior cavity 124 of the magnetic cylinder 100.
A plurality of coils 148, such as coil 148a are positioned radially about the core 132 to form a coil assembly 182. Each individual coil 178a in the coil assembly 182 may be made from a conductive material, such as copper (or a similar alloy) wire and may be constructed using conventional winding techniques known in the art. In certain embodiments, the individual coils 178a may be essentially cylindrical in shape being wound around a coil core (not shown) having a center opening sized to allow the individual coil 178a to be secured to the core 132.
Although a particular number of coils in the plurality of coils 142 are illustrated in
In certain embodiments, as illustrated in
In some embodiments, the slip ring segments 184 are in electrical communication with a current source via a plurality of brushes 186 and 188 (
When in the “motor mode,” electric power is applied to power terminals 190 and 192, certain coils in the plurality of coils 142 move through the magnetic cylinder 100 and only “see” “flux walls” similar to the flux walls discussed above in reference to
At the contact area for the negative brush 188, the current is divided into two paths, one path is back through the plurality of coils within the magnetic cylinder 100 itself, the other path is routed through the coils positioned in the open segment 194. Thus, the individual coils in the plurality of coils 142 are automatically provided with the correct polarity as illustrated in
In the generator mode, when the plurality of coils 142 move through the magnetic cylinder 100 as a result of the shaft 152 being rotated, the coils within the magnetic cylinder only see the “flux walls” (as discussed in reference to
Should it be desired to remove the open segment coil from the circuit, a diode rectifier may be added to one side of each coil to limit current flow to a specific direction.
As is well known, almost all conventional magnets have magnetic poles. Magnetic poles are typically either of two regions of a magnet, typically designated north and south, where the magnetic field or flux density is strongest.
Rather than using a magnetic cylinder 100 as described above, an alternative magnetic ring or cylinder 200 can be made of a single row of magnets, such as illustrated in
For brevity and clarity, a description of those parts or components which are identical or similar to those described above will not be repeated here. Reference should be made to the foregoing paragraphs with the following description to arrive at a complete understanding of alternative embodiments.
Turning now to
Turning now to
In certain embodiments, a conductor wrapped coil assembly 310 comprises a core 312 which may be formed of iron, iron powder composite or other magnetic/non-magnetic core material. A conductive material 314, such as copper wire is wrapped around the core 312 to form one or more coils. Thus, the coil assembly 310 may consist of one or more coil segments. Especially in brushless designs, multiple coil segments allows speed control by selectively connecting coil segments in differing combinations of series and parallel connections without changing the system supply voltage. For purposes of example, certain embodiments of the coil assembly 310 may comprise twenty four (“24”) coil segments which allows multiple possible combinations of series-parallel connections resulting in multiple output speeds or output power. Where a continuously variable speed or torque requirement are required, input voltages may be adjusted accordingly and if needed, in combination with simple relaying or switched step control of the series-parallel connections between the coil segments. The coil assembly 310 is generally ring shape which allows an interior longitudinal magnetic cylinder 315 to slip through the coil assembly's central aperture 316.
As illustrated, the interior magnetic cylinder 315 comprises a series or plurality of magnets 318 where the north poles face radially outward and transverse to the longitudinal axis 302. Thus, when assembled the north poles of the plurality of magnets 318 would face the core 312 of the coil assembly 310. A first side or end magnetic ring assembly 320 is positioned next to the coil assembly 310. In certain embodiments the first side magnetic ring assembly 320 comprises a plurality of magnets 322 arranged in a radial pattern where the poles of each magnet 322a in the plurality of magnets are generally aligned in a parallel fashion with a longitudinal axis 302. As illustrated the north poles of the plurality of magnets 322 face inward toward the core 312 or the coil assembly 310.
In certain embodiments, a second side or end magnetic ring assembly 330 comprises a plurality of magnets 332 arranged in a radial pattern where the poles of each magnet 332a in the plurality of magnets are generally aligned in a parallel fashion with the longitudinal axis 302. As illustrated the north poles of the plurality of magnets 332 face inward toward the coil assembly 310.
When assembled, it is apparent from discussion regarding
In the illustrative embodiment, the motor/generator assembly 350 has a longitudinal shaft 352. In certain embodiments, the longitudinal shaft 352 may be made from an iron, steel, or a ferrite compound with similar magnetic properties to iron. In certain embodiments, the longitudinal shaft 352 may include a ferrite compound or powder. In some embodiments, the ferrite compound or powder may be suspended in a viscous material, such as an insulating liquid, a lubricant, motor oil, gel, or mineral oil to reduce or eliminate eddy currents and magnetic hysteresis.
In certain embodiments, there may be an outer casing or housing 354 which provides structural support for the magnetic cylinder 300 and the longitudinal shaft 352. In certain embodiments, the housing 354 may be formed from any material, alloy, or compound having the required structural strength. In certain embodiments, non-ferrous materials may be used. In some embodiments, external bearings (not shown) may be used to reduce the friction between the longitudinal shaft 352 and the housing 354 or a similar supporting structure. In certain embodiments, the housing 354 may be coupled to a base (not shown) to provide for structural support for the housing 354
As illustrated in
Turning now to
The enhanced flux toroidal core magnetic cylinder assembly 400 is similar to the core magnetic cylinder assembly 300 except that the interior parallel magnetic cylinder 315 is positioned on the outside of the side magnets ring assemblies 420 and 430.
In certain embodiments, a conductor wrapped coil assembly 410 comprises a core 412 which may be formed of iron, iron powder composite or other magnetic/non-magnetic core material similar to the core 312 discussed above. A conductive material 414, similar to the conductive material 314, is wrapped around the core 412 to form one or more coils or coil segments such as coil segment 410a. Thus, the coil assembly 410 may consist of one or more coil segments as described above in reference to the coil assembly 310.
The coil assembly 410 is generally ring shape which allows a connecting hub 417 to couple the coil assembly 410 to a longitudinal shaft 452. In certain embodiments, the connecting hub may be coupled to slip rings (not shown) or bushings 419.
As illustrated, the exterior magnetic cylinder 415 comprises a series or plurality of magnets 418 where the north poles face radially inward towards the core 412 and the longitudinal axis 402. A first side magnetic ring assembly 420 is positioned next to the coil assembly 410. In certain embodiments, the first side magnetic ring assembly 420 comprises a plurality of magnets 422 arranged in a radial pattern where the poles of each magnet 422a in the plurality of magnets are generally aligned in a parallel fashion with a longitudinal axis 402. As illustrated the north poles of the plurality of magnets 422 face inward toward the core 412.
In certain embodiments a second side magnetic ring assembly 430 comprises a plurality of magnets 432 arranged in a radial pattern where the poles of each magnet 432a in the plurality of magnets are generally aligned in a parallel fashion with the longitudinal axis 402. As illustrated the north poles of the plurality of magnets 432 face inward toward the core 412.
In the illustrative embodiment, the motor/generator assembly 450 has a longitudinal shaft 452. In certain embodiments, the longitudinal shaft 452 may be similar to the longitudinal shaft 352 discussed above.
In certain embodiments, there may be an outer casing or housing 454 (similar to housing 354 discussed above) which provides structural support for the coil assembly 410 and the longitudinal shaft 452. In some embodiments, external bearings (not shown) may be used to reduce the friction between the longitudinal shaft 452 and the housing 454 or a similar supporting structure.
As illustrated in
In a motor, force is equal to flux density in Tesla times the amperage times the conductor length in meters. In a generator voltage is equal to flux density in Tesla times velocity times times conductor length in meters. In all configurations presented in this application these basic calculations are utilized.
Turning now to
Turning now to
In certain embodiments, conductor wrapped coil assemblies 510a through 510c include cores 512a through 512c similar to the core 312 discussed above. The cores 512a through 512c may be formed of iron, iron powder composite or other magnetic/non-magnetic core material. Conductive materials 514a through 514c, such as copper wire are individually wrapped around the cores 512a, the core 512b, and the core 512c to form one or more coil segments for each coil assembly 512a through 512c. As discussed above, multiple coil segments in each coil assembly 510a through 510c allows speed control by selectively connecting coil segments in differing combinations of series and parallel connections without changing the system supply voltage.
The coil assemblies 510a through 510c are generally ring shape which allows for interior magnetic cylinders 514a through 514c to be positioned annularly with respect to a longitudinal axis 502. A plurality of hubs, such as hub 516a through 516c couple a longitudinal shaft 552 to the interior magnetic cylinders 515a through 515c.
As illustrated, the interior magnetic cylinders 515a through 515c each comprise a series or plurality of magnets 518 positioned such that their magnetic poles are radially aligned perpendicular to the longitudinal axis 502. A first end magnetic ring assembly 520 is positioned next to the coil assembly 510a. In certain embodiments, the first end magnetic ring assembly 520 comprises a plurality of magnets 522 arranged in a radial pattern where the poles of each magnet in the plurality of magnets are generally aligned in a parallel fashion with a longitudinal axis 502 (similar to the ring assembly 320 discussed above). As illustrated, the north poles of the plurality of magnets 522 face inward toward the core 512a.
In certain embodiments a second end magnetic ring assembly 530 comprises a plurality of magnets 532 arranged in a radial pattern where the poles of each magnet 532a in the plurality of magnets are generally aligned in a parallel fashion with the longitudinal axis 502. As illustrated, in
As illustrated in
In other words, the space filled by the core 512a for the individual magnetic cylinder 500a has a magnetic force filled with a “north pole” polarity from the positioning of the magnets 522, the magnets 515a, and the magnets of the magnetic ring 524. On the other hand, the space filled by the core 512b for the individual magnetic cylinder 500b has a magnetic force filled with a “south pole” polarity from the positioning of the magnets of the magnetic ring 524, the magnets 515b, and the magnets of the magnetic ring 526. The space filled by the core 512c for the individual magnetic cylinder 500c has a magnetic force filled with a “north pole” polarity from the positioning of the magnets from the magnetic ring 526, the magnets 515c, and the magnets of the magnetic ring 532.
In certain embodiments, the longitudinal shaft 552 may be made from an iron, steel, or a ferrite compound with similar magnetic properties to iron. In certain embodiments, the longitudinal shaft 552 may include a ferrite compound or powder. In some embodiments, the ferrite compound or powder may be suspended in a viscous material, such as an insulating liquid, a lubricant, motor oil, gel, or mineral oil to reduce or eliminate eddy currents and magnetic hysteresis.
In certain embodiments, there may be an outer casing or housing 554 which provides structural support for the magnetic cylinder 500 and the longitudinal shaft 552. In certain embodiments, the housing 554 may be formed from any material, alloy, or compound having the required structural strength. In certain embodiments, non-ferrous materials may be used. In some embodiments, external bearings (not shown) may be used to reduce the friction between the longitudinal shaft 552 and the housing 554 or a similar supporting structure. In certain embodiments, the housing 554 may be coupled to a base (not shown) to provide for structural support for the housing 554.
In this example, the magnetic cylinders 500a through 500c include a 3× concentration and brushless assembly in that the magnet assembly (e.g., the magnetic ring or cylinder 515, the first side magnetic ring 520, and the second side magnetic 530) acts as the rotor with the toroidal coil assembly 510 stationary. This configuration has the advantage of using coil segments whose conductor leads can be brought to a single location (not shown) allowing stepped speed control by simple switching series-parallel combinations in combination with varying voltage inputs where stepless control of motor/generator outputs are desired.
In certain embodiments, the conductor wrapped coil assembly 610 comprises a core 612 similar to the core 312 discussed above. A conductive material 614, such as copper wire is wrapped around the core 612 to form one or more coil segments 610a. The coil assembly 610 is generally ring shape and may be coupled to a connecting hub or sling ring assembly 617 which may in turn be coupled to a shaft 652.
As illustrated, the enhanced flux torodial magnetic cylinder assembly 600 comprises three U-shaped magnetic cylinders 680, 682 and 684 where the open end face of each U shaped cylinder faces the core 612 or the coil assembly 610. Each of the U-shaped magnetic cylinders are comprised with a series or plurality of magnets 618 where the north poles of each magnet faces inward towards the “U” space. Thus when assembled, the north poles of the plurality of magnets 618 faces the core 612 to concentrate the magnetic fields of the magnets.
The coil assembly 600 uses a 9× flux concentrator design (three 3× concentrators). Thus, the assembled 650 motor/generator has a magnetic concentration of 9× and uses a typical DC brushes 619 (although four are shown, any number may be used depending on the engineering factors) to impart or collect the current. In this particular embodiment, the toroidal coil assembly 610 acts as the rotor which is connected to a slip ring assembly 642. The 9× magnet cylinder or ring assembly acts as the stator. The greater flux density acting on the conductors increases the Lorentz outputs in motor or generator mode.
In the illustrative embodiment, the motor/generator assembly 650 has a longitudinal shaft 652, similar to the shaft 352 discussed above.
In certain embodiments, there may be an outer casing or housing 654 which provides structural support for the magnetic cylinder 600 and the longitudinal shaft 652.
In certain embodiments, the magnet assembly 700 comprises at least two or more commercially available permanent magnets 710 and 712 positioned on either end of an iron core 714. In the illustrated embodiment a cylinder shape has been selected but any shape may be constructed in any suitable configuration.
Thus, such “hybrid” magnet assemblies can also be used to assist in the concentration of flux force lines in the magnetic cylinders discussed above.
In certain embodiments, there is an apparatus or system claims to produce voltage, for instance, there may be:
A system for generating DC electric voltage characterized by: a means for concentrating similarly polarized magnetic flux forces around a circumferential portion of a magnetic cylinder to create an area of magnetic concentration comprising a stacked plurality of similarly polarized magnetic flux forces, a means for coupling the coil segment to a longitudinal shaft such that as the longitudinal shaft rotates, the coil segment is moved into the area of concentration, a means for producing a voltage in the coil segment as the plurality of flux forces within the area of magnetic concentration are compressed, and a means for removing the voltage from the coil segment.
There may also be the above system further characterized by: a means for concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces wherein the additional area of magnetic concentration is radially positioned away from the area of magnetic concentration, a means for coupling the additional coil segment to a longitudinal shaft such that as the longitudinal shaft rotates, the additional coil segment is moved into the additional area of concentration, a means for producing an additional voltage in the additional coil segment as the plurality of flux forces within the area of magnetic concentration are compressed, and a means for removing the voltage from the coil segment.
There may also be the above systems wherein the system is further characterized by: a means for concentrating similarly polarized magnetic flux forces around a circumferential portion of an additional magnetic cylinder positioned longitudinally away from the magnetic cylinder to create an additional area of magnetic concentration within the additional magnetic cylinder comprising an additional stacked plurality of similarly polarized magnetic flux forces, a means for coupling an additional coil segment positioned within the additional cylinder to a longitudinal shaft such that as the longitudinal shaft rotates, the additional coil segment is moved into the additional area of concentration, a means for producing an additional current in the additional coil segment as the plurality of flux forces within the additional area of magnetic concentration are compressed, and a means for removing the additional voltage from the additional coil segment.
There may also be the above systems further characterized by: a means for concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the additional magnetic cylinder to create an second additional area of magnetic concentration comprising a second additional stacked plurality of similarly polarized magnetic flux forces wherein the second additional area of magnetic concentration is radially positioned away from the additional area of magnetic concentration, a means for coupling a second additional coil segment positioned within the additional cylinder to the longitudinal shaft such that as the longitudinal shaft rotates, the second additional coil segment is moved into the second additional area of concentration, a means for producing a second additional voltage in the second additional coil segment as the plurality of flux forces within the second additional area of magnetic concentration are compressed, a means for removing the second additional voltage from the second additional coil segment.
Yet, there may also be a system or apparatus claims to produce mechanical power, for instance: A system for producing radial motion of a shaft, the system characterized by: a means for concentrating similarly polarized magnetic flux forces around a circumferential portion of a magnetic cylinder to create an area of magnetic concentration comprising a stacked plurality of similarly polarized magnetic flux forces, a means for radially moving a coil segment into the area of magnetic concentration, a means for applying a current to the coil segment to change the plurality of flux forces within the area of magnetic concentration, a means for creating a repulsive magnetic force on the coil segment to move the coil segment out of the area of magnetic concentration, and a means for coupling the coil segment to a longitudinal shaft such that as the coil segment moves out of the area of concentration, the shaft rotates in a radial manner.
There may also be the above system further characterized by: a means for concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces wherein the additional area of magnetic concentration is radially positioned away from the area of magnetic concentration, a means for radially moving an additional coil segment into the additional area of magnetic concentration, a means for applying an additional current to the additional coil segment to change the plurality of flux forces within the additional area of magnetic concentration, a means for creating an additional repulsive magnetic force on the additional coil segment to move the additional coil segment out of the additional area of concentration, and a means for coupling the additional coil segment to the longitudinal shaft such that as the additional coil segment moves out of the additional area of concentration, the additional coil segment contributes to the radial shaft rotation.
There may also be the above systems further characterized by: a means for concentrating similarly polarized magnetic flux forces around a circumferential portion of an additional magnetic cylinder positioned longitudinally away from the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces, a means for radially moving an additional coil segment into the additional area of magnetic concentration, a means for applying an additional current to the additional coil segment to change the additional plurality of flux forces within the additional area of magnetic concentration, a means for creating an additional repulsive magnetic force on the additional coil segment to move the additional coil segment out of the additional area of magnetic concentration, and a means for coupling the additional coil segment to the longitudinal shaft such that as the additional coil segment moves out of the additional area of concentration, the additional coil segment contributes to the radial shaft rotation.
There may also be the above systems further characterized by: a means for concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the additional magnetic cylinder to create an second additional area of magnetic concentration comprising a second additional stacked plurality of similarly polarized magnetic flux forces wherein the second additional area of magnetic concentration is radially positioned away from the additional area of magnetic concentration, a means for radially moving a second additional coil segment into the second additional area of magnetic concentration, a means for applying a second additional current to the second additional coil segment to change the plurality of flux forces within the second additional area of magnetic concentration, a means for creating a second additional repulsive magnetic force on the second additional coil segment to move the second additional coil segment out of the second additional area of concentration, and a means for coupling the second additional coil segment to the longitudinal shaft such that as the second additional coil segment moves out of the second additional area of concentration, the second additional coil segment contributes to the radial shaft rotation.
Also disclosed are means of creating the area of concentration, which may include: the above systems further characterized by: a means for positioning a longitudinal magnet within the magnetic cylinder, such that a longitudinal has a longitudinal axis that is parallel to a longitudinal axis of the shaft and that the poles of the longitudinal magnet are transverse to the longitudinal axis of the shaft, a means for positioning a first transverse magnet within the magnetic cylinder, such that the poles of the of the first transverse magnet are parallel to the longitudinal axis of the shaft, a means for positioning a second transverse magnet within the magnetic cylinder, such that the poles of the of the second transverse magnet are parallel to the longitudinal axis of the shaft, such that similarly polarized magnet poles all face towards one area to produce the area of magnetic concentration.
There may also be the above system further characterized by: a first magnet positioned within the magnetic cylinder, a second magnet positioned within the magnetic cylinder, such that similarly polarized magnet poles of the first and second magnets face towards one area to produce the area of magnetic concentration.
There may also be the above systems further characterized by: wherein the means for concentrating is further characterized by a third magnet positioned within the magnetic cylinder, such that similarly polarized magnet poles of the first magnet, second magnet, and third magnet face towards one area to produce the area of magnetic concentration.
There may also be the above systems further characterized by: wherein the means for concentrating is further characterized by positioning an additional magnets within the magnetic cylinder, such that similarly polarized magnetic poles of the first magnet, the second magnet, and the third magnet, and the additional magnets are positioned such that the polarized magnetic poles of the plurality of additional magnets face towards one area to produce the area of magnetic concentration.
There may also be the above systems further characterized by: wherein the means for concentrating is further characterized by an electromagnetic magnet positioned within the magnetic cylinder to produce the area of magnetic concentration.
There may also be the above systems further characterized by: a first magnet positioned within the magnetic cylinder, a second magnet positioned within the magnetic cylinder, an iron core coupling the first magnet to the second magnet and positioned between the first magnet and the second magnet, conductive material wrapped around the iron core, and a means for applying a current to the conductive material to produce an area of magnetic concentration.
Also disclosed are method claims to produce DC voltage: such as a method of producing DC voltage, the method characterized by: concentrating similarly polarized magnetic flux forces around a circumferential portion of a magnetic cylinder to create an area of magnetic concentration comprising a stacked plurality of similarly polarized magnetic flux forces, coupling the coil segment to a longitudinal shaft such that as the longitudinal shaft rotates, the coil segment is moved into the area of concentration, producing a voltage in the coil segment as the plurality of flux forces within the area of magnetic concentration are compressed, removing the voltage from the coil segment.
The methods of the above claims further characterized by: concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces wherein the additional area of magnetic concentration is radially positioned away from the area of magnetic concentration, coupling the additional coil segment to a longitudinal shaft such that as the longitudinal shaft rotates, the additional coil segment is moved into the additional area of concentration, producing an additional voltage in the additional coil segment as the plurality of flux forces within the area of magnetic concentration are compressed, removing the voltage from the coil segment.
The methods of the above claims wherein the method is further characterized by: concentrating similarly polarized magnetic flux forces around a circumferential portion of an additional magnetic cylinder positioned longitudinally away from the magnetic cylinder to create an additional area of magnetic concentration within the additional magnetic cylinder comprising an additional stacked plurality of similarly polarized magnetic flux forces, coupling an additional coil segment positioned within the additional cylinder to a longitudinal shaft such that as the longitudinal shaft rotates, the additional coil segment is moved into the additional area of concentration, producing an additional voltage in the additional coil segment as the plurality of flux forces within the additional area of magnetic concentration are compressed, removing the additional voltage from the additional coil segment.
The methods of the above claims further characterized by: concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the additional magnetic cylinder to create an second additional area of magnetic concentration comprising a second additional stacked plurality of similarly polarized magnetic flux forces wherein the second additional area of magnetic concentration is radially positioned away from the additional area of magnetic concentration, coupling a second additional coil segment positioned within the additional cylinder to the longitudinal shaft such that as the longitudinal shaft rotates, the second additional coil segment is moved into the second additional area of concentration, producing a second additional voltage in the second additional coil segment as the plurality of flux forces within the second additional area of magnetic concentration are compressed, removing the second additional voltage from the second additional coil segment.
Additionally, there may be methods to produce DC mechanical power such as: a method of producing a radial motion of a shaft, the method characterized by: concentrating similarly polarized magnetic flux forces around a circumferential portion of a magnetic cylinder to create an area of magnetic concentration comprising a stacked plurality of similarly polarized magnetic flux forces, radially moving a coil segment into the area of magnetic concentration, applying a current to the coil segment to change the plurality of flux forces within the area of magnetic concentration, creating a repulsive magnetic force on the coil segment to move the coil segment out of the area of magnetic concentration, and coupling the coil segment to a longitudinal shaft such that as the coil segment moves out of the area of concentration, the shaft rotates in a radial manner.
The methods of the above claims further characterized by: concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces wherein the additional area of magnetic concentration is radially positioned away from the area of magnetic concentration, radially moving an additional coil segment into the additional area of magnetic concentration, applying an additional current to the additional coil segment to change the plurality of flux forces within the additional area of magnetic concentration, creating an additional repulsive magnetic force on the additional coil segment to move the additional coil segment out of the additional area of concentration, and coupling the additional coil segment to the longitudinal shaft such that as the additional coil segment moves out of the additional area of concentration, the additional coil segment contributes to the radial shaft rotation.
The methods of the above claims further characterized by: concentrating similarly polarized magnetic flux forces around a circumferential portion of an additional magnetic cylinder positioned longitudinally away from the magnetic cylinder to create an additional area of magnetic concentration comprising an additional stacked plurality of similarly polarized magnetic flux forces, radially moving an additional coil segment into the additional area of magnetic concentration, applying an additional current to the additional coil segment to change the additional plurality of flux forces within the additional area of magnetic concentration, creating an additional repulsive magnetic force on the additional coil segment to move the additional coil segment out of the additional area of magnetic concentration, and coupling the additional coil segment to the longitudinal shaft such that as the additional coil segment moves out of the additional area of concentration, the additional coil segment contributes to the radial shaft rotation.
The methods of the above claims further characterized by: concentrating similarly polarized magnetic flux forces around an additional circumferential portion of the additional magnetic cylinder to create an second additional area of magnetic concentration comprising a second additional stacked plurality of similarly polarized magnetic flux forces wherein the second additional area of magnetic concentration is radially positioned away from the additional area of magnetic concentration, radially moving a second additional coil segment into the second additional area of magnetic concentration, applying a second additional current to the second additional coil segment to change the plurality of flux forces within the second additional area of magnetic concentration, creating a second additional repulsive magnetic force on the second additional coil segment to move the second additional coil segment out of the second additional area of concentration, and coupling the second additional coil segment to the longitudinal shaft such that as the second additional coil segment moves out of the second additional area of concentration, the second additional coil segment contributes to the radial shaft rotation.
As above, there may also be methods of creating the area of concentration: such as the methods of the above claims wherein the concentrating is further characterized by: positioning a longitudinal magnet within the magnetic cylinder, such that a longitudinal has a longitudinal axis that is parallel to a longitudinal axis of the shaft and that the poles of the longitudinal magnet are transverse to the longitudinal axis of the shaft, positioning a first transverse magnet within the magnetic cylinder, such that the poles of the of the first transverse magnet are parallel to the longitudinal axis of the shaft, positioning a second transverse magnet within the magnetic cylinder, such that the poles of the of the second transverse magnet are parallel to the longitudinal axis of the shaft, such that similarly polarized magnet poles all face towards one area to produce the area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by: positioning a first magnet within the magnetic cylinder, positioning a second magnet within the magnetic cylinder, such that similarly polarized magnet poles of the first and second magnets face towards one area to produce the area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by positioning a third magnet within the magnetic cylinder, such that similarly polarized magnet poles of the first magnet, second magnet, and third magnet face towards one area to produce the area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by positioning a fourth magnet within the magnetic cylinder, such that similarly polarized magnet poles of the first magnet, second magnet, third magnet and forth magnet face towards one area to produce the area of magnetic concentration.
The methods of the above claims further characterized by wherein the concentrating is further characterized by positioning a fifth magnet within the magnetic cylinder, such that similarly polarized magnet poles of the first magnet, second magnet, third magnet, forth magnet and firth magnets face towards one area to produce the area of magnetic concentration.
The methods of the above claims further characterized by wherein the concentrating is further characterized by positioning an additional magnets within the magnetic cylinder, such that similarly polarized magnetic poles of the first magnet and the polarized magnetic poles of the plurality of additional magnets face towards one area to produce the area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by positioning an electromagnetic magnet within the magnetic cylinder to produce the area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by: positioning a first magnet within the magnetic cylinder, positioning a second magnet within the magnetic cylinder, positioning an iron core between the first magnet and the second magnet, positioning conductive material around the iron core, and applying a current to the conductive material to produce an area of magnetic concentration.
The methods of the above claims wherein the concentrating is further characterized by positioning one or more iron cores or similar metals within the magnetic cylinder to assist in producing the area of magnetic concentration.
The abstract of the disclosure is provided for the sole reason of complying with the rules requiring an abstract, which will allow a searcher to quickly ascertain the subject matter of the technical disclosure of any patent issued from this disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Any advantages and benefits described may not apply to all embodiments of the invention. When the word “means” is recited in a claim element, Applicant intends for the claim element to fall under 35 USC 112, paragraph 6. Often a label of one or more words precedes the word “means”. The word or words preceding the word “means” is a label intended to ease referencing of claims elements and is not intended to convey a structural limitation. Such means-plus-function claims are intended to cover not only the structures described herein for performing the function and their structural equivalents, but also equivalent structures. For example, although a nail and a screw have different structures, they are equivalent structures since they both perform the function of fastening. Claims that do not use the word means are not intended to fall under 35 USC 112, paragraph 6.
The foregoing description of the embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many combinations, modifications and variations are possible in light of the above teaching. Undescribed embodiments which have interchanged components are still within the scope of the present invention. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.
This application is a Continuation of U.S. patent application Ser. No. 15/813,360, filed Nov. 15, 2017, entitled “DC Electric Motor/Generator with Enhanced Permanent Magnet Flux Densities, which is a Continuation of U.S. patent application Ser. No. 14/490,656, filed Sep. 18, 2014, now U.S. Pat. No. 9,825,496, entitled “DC Electric Motor/Generator with Enhanced Permanent Magnet Flux Densities,” which is a Continuation of PCT international application no. PCT/US2013/033198, filed Mar. 20, 2013, entitled “An Improved DC Electric Motor/Generator with Enhanced Permanent Magnet Flux Densities,” which claims the benefit of the filing date of U.S. provisional application No. 61/613,022, filed Mar. 20, 2012, entitled “Electric Motor Generator.” The disclosures of which are also incorporated by reference for all purposes.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15813360 | Nov 2017 | US |
| Child | 17567285 | US | |
| Parent | 14490656 | Sep 2014 | US |
| Child | 15813360 | US | |
| Parent | PCT/US2013/033198 | Mar 2013 | US |
| Child | 14490656 | US |
