CN102013788B - Speed change device and power supply equipment using same - Google Patents
Speed change device and power supply equipment using same Download PDFInfo
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- CN102013788B CN102013788B CN 200910169886 CN200910169886A CN102013788B CN 102013788 B CN102013788 B CN 102013788B CN 200910169886 CN200910169886 CN 200910169886 CN 200910169886 A CN200910169886 A CN 200910169886A CN 102013788 B CN102013788 B CN 102013788B
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Abstract
The invention relates to the field of machinery, in particular to a speed change device and power supply equipment using the same. The speed change device is used for continuously changing the driving ratio of an engine to a generator and comprises a first driving unit and a second driving unit, wherein the first driving unit can be driven by the engine to rotate; the second driving unit can drive the generator to generate power; and the first driving unit and the second driving unit are subjected to power transmission by a magnetic field. The speed change device can continuously change the driving ratio of the engine to the generator. In addition, the invention also provides the power supply equipment using the speed change device.
Description
Technical field
The present invention relates to mechanical field, relate in particular to speed change gear and use the power-supply device of this speed change gear.
Background technology
At present, in most automobiles generator is housed all.This generator is used for providing power supply to each power consumption equipment of automobile, and described power consumption equipment comprises automobile instrument panel, sound equipment, air-conditioning, car light, electric windshield wiper, power windows and skylight etc., and described generator also is used for automobile batteries is charged.
Generator in the automobile usually is arranged to coaxially with automobile engine, i.e. the rotating shaft of the rotating shaft of generator and engine is same axis, and generator like this and engine have same rotating speed.As everyone knows, the rotating speed of automobile engine under idling and full-speed state differs greatly, and the rotating speed under the idling mode is generally 600 rev/mins to 800 rev/mins, and the rotating speed under full-speed state is usually between 5000 rev/mins to 8000 rev/mins.Like this speed difference of great disparity so that with the non-constant width of excursion of the output voltage of the coaxial generator of engine.And the power consumption equipment of automobile has rated operational voltage, and therefore, the voltage of described generator output must through after the stable-pressure device voltage stabilizing, just can offer described power consumption equipment and use.
In order to solve the wide shortcoming of generator output voltage excursion, industry employing change gear device is realized the power transmission between automobile engine and the generator.This change gear device diminishes described gearratio under full-speed state, so that the rotating speed of described generator is in particular range under the auto idle speed state gearratio between engine and the generator being become large.But the output voltage of this generator changes in the time of still can changing in particular range along with the rotating speed of generator, also needs to have the electronic regulation device that the output voltage of described generator is carried out voltage stabilizing.
Summary of the invention
In view of this, the invention provides a kind of realization gearratio continually varying speed change gear.
In addition, the present invention also provides a kind of power-supply device that uses above-mentioned speed change gear.
A kind of speed change gear is used for changing continuously the gearratio between engine and the generator.Described speed change gear comprises the first gear unit and the second gear unit, described the first gear unit can rotate under driven by engine, described the second gear unit can drive described generator generating, and carries out power transmission by magnetic field between described the first gear unit and the second gear unit.
Wherein, in described the first gear unit and the second gear unit, have at least one can produce continually varying magnetic field.
Wherein, the gearratio between described the first gear unit and the described engine can be a definite value, also can be a discontinuous adjustable scope.
Wherein, described the first gear unit is belt pulley, and described belt pulley is realized the fixed proportion gearratio by belt and described engine.
Wherein, an end opening of described belt pulley, other end sealing, and be provided with the first perforate in an end center of this sealing, this belt pulley also comprises and is arranged on the annular brace seat that this seals an end.
Wherein, described speed change gear also comprises bearing, and described the first gear unit and the second gear unit rotate mutually by described bearing.
Wherein, described the second gear unit is electromagnet, changes continuously by the signal of telecommunication power in the described electromagnet and changes serially the magnetic field power that described electromagnet produces.
Wherein, described the second gear unit comprises rotor assembly, described rotor assembly comprises left magnetic pole, right magnetic pole, coil, described left magnetic pole matches with right magnetic pole and forms the cylindrical sides of described rotor assembly, described coil is contained in the described right magnetic pole, and is contained in the lump in the described left magnetic pole with the inside of described right magnetic pole.
Wherein, the side of described left magnetic pole is made of the first fourchette that a plurality of intervals arrange, an end opening of described left magnetic pole, and the other end seals, and is provided with the second perforate in an end center of this sealing.
Wherein, the side of described right magnetic pole is made of the second fourchette that a plurality of intervals arrange, and described right magnetic pole is provided with axis hole along the cylinder axis direction.
Wherein, described the second gear unit also comprises rotating shaft, and described rotating shaft has identical rotating speed with described generator.
Wherein, the gearratio between described the second gear unit and the generator can be a definite value, also can be a discontinuous adjustable scope.
A kind of power-supply device, be used for providing output voltage to power consumption equipment, described power-supply device comprises generator, speed change gear, detect and control module, described speed change gear comprises the first gear unit and the second gear unit, described the first gear unit externally power set drives lower the rotation, described the second gear unit can drive described generator generating, carry out power transmission by magnetic field between described the first gear unit and the second gear unit, described detection and control module are for detection of the voltage swing of described generator output, and send according to the size of described voltage and to control signal to described speed change gear, described speed change gear responds described control signal, adjust the power in described magnetic field, change the gearratio between described the first gear unit and described the second gear unit.
Wherein, in described the first gear unit and the second gear unit, have at least one can produce continually varying magnetic field.
Wherein, the gearratio between described the first gear unit and the described engine can be definite value, also can be discontinuous adjustable scope.
Wherein, described the first gear unit is belt pulley, described belt pulley is realized the fixed proportion gearratio by belt and described engine, one end opening of described belt pulley, other end sealing, and the end center in this sealing is provided with the first perforate, and this belt pulley also comprises and is arranged on the annular brace seat that this seals an end.
Wherein, described speed change gear also comprises bearing, and described the first gear unit and the second gear unit rotate mutually by described bearing.
Wherein, described the second gear unit is electromagnet, and when described control signal was strong, described electromagnet produced high-intensity magnetic field, otherwise, then produce low-intensity magnetic field.
Wherein, described the second gear unit comprises rotor assembly, described rotor assembly comprises left magnetic pole, right magnetic pole, coil, described left magnetic pole matches with right magnetic pole and forms the cylindrical sides of described rotor assembly, described coil is contained in the described right magnetic pole, and is contained in the lump in the described left magnetic pole with the inside of described right magnetic pole.
Wherein, the side of described left magnetic pole is made of the first fourchette that a plurality of intervals arrange, an end opening of described left magnetic pole, and the other end seals, and is provided with the second perforate in an end center of this sealing.
Wherein, the side of described right magnetic pole is made of the second fourchette that a plurality of intervals arrange, and described right magnetic pole is provided with axis hole along the cylinder axis direction.
Wherein, described the second gear unit comprises rotating shaft, and described rotating shaft has identical rotating speed with described generator.
Above-mentioned speed change gear is by changing continuously the size of current in the coil that flows through described rotor assembly, and then realization continuously changes the magnetic field size of described rotor assembly, change the magnetic force size between described rotor assembly and the described belt pulley, realize changing continuously the rotating speed of described rotor assembly, and then realize changing continuously the gearratio between belt pulley and the described rotor assembly.
Above-mentioned power-supply device detects the size of described generator output voltage by detection and control module, and send the corresponding described speed change gear that controls signal to according to the size of described voltage, control described speed change gear and change rotating speed, stablize the output voltage of described generator.
Description of drawings
Fig. 1 is the section decomposing schematic representation of the speed change gear of a better embodiment.
Fig. 2 is the generalized section of speed change gear shown in Figure 1.
Fig. 3 is the high-level schematic functional block diagram of the power-supply device of a better embodiment.
Embodiment
A kind of speed change gear of realizing the gearratio continuous transformation provided by the invention, described speed change gear comprises the first gear unit, the second gear unit, bearing.Described the first gear unit rotates under the drive of engine, and the gearratio between described the first gear unit and the described engine can be a definite value, or discontinuous adjustable scope.Realize relatively rotating by described bearing between described the second gear unit and described the first gear unit.Rotating speed between described the second gear unit and the described generator also can be definite value, or discontinuous adjustable scope.Described the second gear unit is electromagnet, strong and weak by continuously changing by the signal of telecommunication of described the second gear unit, can continuously change the magnetic field power that described electromagnet produces, and then the magnetic force that continuously changes between described the first gear unit and described the second gear unit is big or small, continuously change the gearratio between described the first gear unit and described the second gear unit, and then continuously change the gearratio between engine and the described generator.
In the present embodiment, described the second gear unit is electromagnet; In other embodiments, also can make described the first gear unit is electromagnet.
The present invention also provides a kind of power-supply device that uses above-mentioned speed change gear, this power-supply device is used for providing stable output voltage to power consumption equipment, and described power-supply device can be according to the size of the described output voltage that detects in real time, adjust the first gear unit of described speed change gear and the gearratio between the second gear unit, and then realize the stable of described output voltage.
Be the power-supply device that describes described speed change gear provided by the invention in detail and use described speed change gear, be elaborated below in conjunction with Figure of description 1, accompanying drawing 2 and accompanying drawing 3.
In the present embodiment, described the first gear unit is belt pulley, and the second gear unit comprises rotor assembly and rotating shaft.Please consult simultaneously Fig. 1 and Fig. 2, it is respectively section decomposing schematic representation and the generalized section of the speed change gear of a better embodiment.This speed change gear 100 comprises belt pulley 110, rotor assembly 120, bearing 130, rotating shaft 140 and screw-nut 150.Connect by bearing 130 between described belt pulley 110 and the rotor assembly 120, and described belt pulley 110 and rotor assembly 120 can be realized relatively rotating by bearing 130.Described rotor assembly 120 and described rotating shaft 140 fixed connections, and when described rotor assembly 120 rotates, can drive described rotating shaft 140 and rotate, and then make described rotating shaft 140 drive described generator (consulting accompanying drawing 3) generating.
Described belt pulley 110 rotates under the engine (not shown) drives, and when described rotor assembly 120 had just begun to rotate at described belt pulley 110, owing to having remanent magnetism, described rotor assembly 120 produced low-intensity magnetic field.Because the existence of described low-intensity magnetic field makes to have weak magnetic force between described rotor assembly 120 and the described belt pulley 120.Should drive described rotor assembly 120 rotations by weak magnetic force, and then drive described rotating shaft 140 rotations, and make described generator begin generating.
In the present embodiment, the rotating shaft 140 of described speed change gear 100 is same axis with the generator shaft of described generator.In other embodiments, the power transmission between the generator shaft of described rotating shaft 140 and described generator can also be realized by gear, belt, chain etc.
Described belt pulley 110 integral body are cylindrical, and inner hollow forms hollow bulb 111.One end opening of described belt pulley 110, the other end seals, and is provided with the first perforate 113 in an end center of this sealing.This belt pulley 110 also comprises and is arranged on the annular brace seat 115 that this seals an end, and described supporting seat 115 is contained in the described hollow bulb 111, and described hollow bulb 111 is divided into the first receiving space 117 and the second receiving space 119.
Described belt pulley 110 links to each other with the engine (not shown) by a belt or chain (not shown), and this belt pulley 110 has identical rotating speed with this engine under the drive of this engine.In other embodiments, described the first gear unit can also be the device that geared system, chain, power transmission shaft etc. can be realized transmission.Described belt pulley 110 is made by metal material or magnetic material, such as No. 10 steel.
Described rotor assembly 120 comprises left magnetic pole 121, right magnetic pole 123, coil 125.
Described left magnetic pole 121 integral body are cylindrical, and inner hollow forms the 3rd receiving space 1211.The side of described left magnetic pole 121 is made of the first fourchette 1210 that a plurality of intervals arrange.One end opening of described left magnetic pole 121, the other end seals, and is provided with the second perforate 1213 in an end center of this sealing, is respectively equipped with the 3rd perforate 1215 and the 4th perforate 1217 in the bilateral symmetry position of this second perforate 1213.The outside cylinder radius of described left magnetic pole 121 can be contained in described the first receiving space 117 described left magnetic pole 121 less than the inboard cylindrical radius of belt pulley 110.
Described right magnetic pole 123 is also whole cylindrical, and its side is made of the second fourchette 1230 that a plurality of intervals arrange, and described the second fourchette 1230 cooperates with described the first fourchette 1210, forms a complete cylindrical side.Described right magnetic pole 123 is provided with axis hole 1231 along the cylinder axis direction, be provided with the keyway (not shown) at the wall that forms described axis hole 1231, be respectively equipped with the first screw 1233 and the second screw 1235 along the cylinder axis direction in the both sides of described axis hole 1231.Be provided with the nested space 1237 of annular at the axis direction relative with the second screw 1235 with the first screw 1233.Form the 4th receiving space 1238 of annular between the part in described the first screw 1233 of described formation, the second screw 1235, nested space 1237 and the second fourchette 1230 of right magnetic pole 123.Described right magnetic pole 123 cooperates with described left magnetic pole 121, and the first fourchette 1210 is cooperated with the second fourchette 1230, forms the cylindrical side of rotor assembly 120, and the inside of described right magnetic pole 123 is contained in described the 3rd receiving space 1211.
Described coil 125 is contained in the 4th receiving space 1238 of described right magnetic pole 123 in the form of a ring, and is contained in the lump in the 3rd receiving space 1211 of described left magnetic pole 121 with the inside of described right magnetic pole 123.
Described left magnetic pole 121 and right magnetic pole 123 cooperatively interact, and described coil 125 fixed cards are located between described left magnetic pole 121 and the right magnetic pole 123, and be fixing by screw 151 between described left magnetic pole 121 and the right magnetic pole 123.Described screw 151 passes respectively described the 3rd perforate 1215 and the 4th perforate 1217 cooperates with the first screw 1233 and the second screw 1235, and described left magnetic pole 121 and right magnetic pole 123 is fixing, forms described rotor assembly 120.
Relatively rotating by bearing 130 between described rotor assembly 120 and the described belt pulley 110 realizes.Described bearing 130 is arranged in the nested space 1237 of described right magnetic pole 123, and described nested space 1237 also is used for accommodating the supporting seat 115 of described belt pulley 110, and described bearing 130 is arranged between described supporting seat 115 and the right magnetic pole 123.Described rotor assembly 120 is contained in the hollow bulb 111 of described belt pulley 110.
Described rotating shaft 140 integral body are cylindrical, and its inner hollow forms the first perforation 141.One end of described rotating shaft 140 is provided with screw thread, and this screw thread is used for cooperating with nut 153, and described rotor assembly 120 is fixing with rotating shaft 140, and is provided with the second perforation 143 near this screw thread.Described the first perforation the 141, second perforation 143 is for the lead-in wire of the coil 125 of accommodating described rotor assembly 120.The other end of described rotating shaft 140 is provided with annulus projection 145, and described protruding 145 are used for described rotor assembly 120 is fastened in the described belt pulley 110 rotationally.The end that described rotating shaft 140 is provided with projection 145 connects described generator (consulting accompanying drawing 3).Described axis hole 1231 is passed in described rotating shaft 140, and cooperates with the keyway of described right magnetic pole 123 by the key piece (not shown) that is arranged in the described rotating shaft 140, and rotating shaft 140 and right magnetic pole 123 are fixed.
During described speed change gear 100 work, described belt pulley 110 rotates under the drive of engine, described rotor assembly 120 is at the described 110 rotation initial stages of belt pulley, there is not electric current to flow through in the described coil 125, but because described rotor assembly 120 has remanent magnetism, this remanent magnetism produces low-intensity magnetic field, and then and described belt pulley 110 between have weak magnetic force, should drive described rotor assembly 120 rotations by weak magnetic force, and then drive described rotating shaft 140 rotations.Since the magnetic field that remanent magnetism produces a little less than, the magnetic force of its generation is less, makes the rotating speed between described rotor assembly 120 and the belt pulley 110 have sizable difference.
Rotate when rotating shaft 140, drive described generator generating.The voltage that described generator sends is fed back in the described coil 125 after amplifying by the voltage amplification device.Described coil 125 receives the voltage generation current of described feedback, and the magnetic field that described rotor assembly 120 is produced strengthens, and it is large that described magnetic force becomes, and speed difference diminishes between described rotor assembly 120 and the belt pulley 110.The rotating speed of described rotor assembly 120 improves, and the voltage that generator is sent raises rapidly, reaches the power consumption equipment required voltage.
Described speed change gear 100 is by changing continuously the size of current in the coil 125 that flows through described rotor assembly 120, and then realization continuously changes the magnetic field size of described rotor assembly 120, change the magnetic force size of 120 pairs of described belt pulleys 110 of described rotor assembly, realize changing continuously the rotating speed of described rotor assembly 120, and then the transmission by rotating shaft 140, change the output voltage of generator.
As shown in Figure 3, it is the high-level schematic functional block diagram of the power-supply device of a better embodiment.Described power-supply device 200 comprises speed change gear 100, generator 300, detection and control module 400.Described power-supply device 200 is used for providing power supply to the power consumption equipment (not shown), and therefore, the voltage of described power-supply device 200 outputs must be in a stability range.Described speed change gear 100 is used for according to the size of current in speed change gear 100 coils, adjusting the rotating speed of the rotating shaft of described converting means 100 under driven by engine.Described speed change gear 100 drives described generator 300 generatings by the second gear unit, in the present embodiment, the generator shaft of the rotating shaft of described speed change gear 100 and described generator 300 is same axis, in other embodiments, can also realize power transmission by alternate manner between described rotating shaft and the described generator shaft, such as belt, gear, chain etc.Described detection and control module 400 are for detection of the voltage swing of generator 300 outputs, and send according to described voltage swing and to control signal to described speed change gear 100, namely when the voltage of described generator 300 outputs raises, the rotating shaft rotating speed of controlling described speed change gear 100 reduces, namely reduce by the electric current in the coil 125 of described speed change gear 100, big or small with the magnetic force that reduces between described rotor assembly 120 and the belt pulley 110, and then realization reduces the purpose of described rotating shaft 140 rotating speeds; Otherwise, then increase by the electric current in the coil 125 of described speed change gear 100, big or small with the magnetic force that increases between described rotor assembly 120 and the belt pulley 110, and then realization improves the purpose of described rotating shaft 140 rotating speeds; Described speed change gear 100 is under the control of described control signal, and the rotating speed of its rotating shaft is kept stable, and then makes the output voltage stabilization of described generator 300.
Claims (20)
1. speed change gear, be used for changing continuously the gearratio between engine and the generator, it is characterized in that: described speed change gear comprises the first gear unit and the second gear unit, described the first gear unit rotates under driven by engine, described the second gear unit drives described generator generating, and carry out power transmission by magnetic field between described the first gear unit and the second gear unit, described the second gear unit comprises rotor assembly, described rotor assembly comprises left magnetic pole, right magnetic pole, coil, described left magnetic pole matches with right magnetic pole and forms the cylindrical sides of described rotor assembly, described coil is contained in the described right magnetic pole, and is contained in the lump in the described left magnetic pole with the inside of described right magnetic pole.
2. speed change gear as claimed in claim 1 is characterized in that: in described the first gear unit and the second gear unit, have at least one can produce continually varying magnetic field.
3. speed change gear as claimed in claim 1, it is characterized in that: the gearratio between described the first gear unit and the described engine is a definite value, or a discontinuous adjustable scope.
4. speed change gear as claimed in claim 3, it is characterized in that: described the first gear unit is belt pulley, described belt pulley is realized the fixed proportion gearratio by belt and described engine.
5. speed change gear as claimed in claim 4 is characterized in that: an end opening of described belt pulley, and other end sealing, and be provided with the first perforate in an end center of this sealing, this belt pulley also comprises and is arranged on the annular brace seat that this seals an end.
6. speed change gear as claimed in claim 1, it is characterized in that: described speed change gear also comprises bearing, described the first gear unit and the second gear unit rotate mutually by described bearing.
7. speed change gear as claimed in claim 1, it is characterized in that: described the second gear unit is electromagnet, changes continuously that to change serially the magnetic field that described electromagnet produces by the signal of telecommunication power in the described electromagnet strong and weak.
8. speed change gear as claimed in claim 1 is characterized in that: the side of described left magnetic pole is made of the first fourchette that a plurality of intervals arrange, an end opening of described left magnetic pole, and other end sealing, and be provided with the second perforate in an end center of this sealing.
9. speed change gear as claimed in claim 1 is characterized in that: the side of described right magnetic pole is made of the second fourchette that a plurality of intervals arrange, and described right magnetic pole is provided with axis hole along the cylinder axis direction.
10. speed change gear as claimed in claim 1, it is characterized in that: described the second gear unit also comprises rotating shaft, described rotating shaft has identical rotating speed with described generator.
11. speed change gear as claimed in claim 1 is characterized in that: the gearratio between described the second gear unit and the generator is a definite value, or a discontinuous adjustable scope.
12. power-supply device, be used for providing output voltage to power consumption equipment, described power-supply device comprises generator, it is characterized in that: described power-supply device also comprises speed change gear, detect and control module, described speed change gear comprises the first gear unit and the second gear unit, described the first gear unit externally power set drives lower the rotation, described the second gear unit drives described generator generating, carry out power transmission by magnetic field between described the first gear unit and the second gear unit, described detection and control module are for detection of the voltage swing of described generator output, and send according to the size of described voltage and to control signal to described speed change gear, described speed change gear responds described control signal, adjust the power in described magnetic field, change the gearratio between described the first gear unit and described the second gear unit, described the second gear unit comprises rotor assembly, described rotor assembly comprises left magnetic pole, right magnetic pole, coil, described left magnetic pole matches with right magnetic pole and forms the cylindrical sides of described rotor assembly, described coil is contained in the described right magnetic pole, and is contained in the lump in the described left magnetic pole with the inside of described right magnetic pole.
13. power-supply device as claimed in claim 12 is characterized in that: in described the first gear unit and the second gear unit, have at least one can produce continually varying magnetic field.
14. power-supply device as claimed in claim 12 is characterized in that: the gearratio between described the first gear unit and the described external motive device is definite value, or discontinuous adjustable scope.
15. power-supply device as claimed in claim 12, it is characterized in that: described the first gear unit is belt pulley, described belt pulley is realized the fixed proportion gearratio by belt and described external motive device, one end opening of described belt pulley, other end sealing, and the end center in this sealing is provided with the first perforate, and this belt pulley also comprises and is arranged on the annular brace seat that this seals an end.
16. power-supply device as claimed in claim 12 is characterized in that: described speed change gear also comprises bearing, and described the first gear unit and the second gear unit rotate mutually by described bearing.
17. power-supply device as claimed in claim 12 is characterized in that: described the second gear unit is electromagnet, and when described control signal was strong, described electromagnet produced high-intensity magnetic field, otherwise, then produce low-intensity magnetic field.
18. power-supply device as claimed in claim 12 is characterized in that: the side of described left magnetic pole is made of the first fourchette that a plurality of intervals arrange, an end opening of described left magnetic pole, and the other end seals, and is provided with the second perforate in an end center of this sealing.
19. power-supply device as claimed in claim 12 is characterized in that: the side of described right magnetic pole is made of the second fourchette that a plurality of intervals arrange, and described right magnetic pole is provided with axis hole along the cylinder axis direction.
20. power-supply device as claimed in claim 12 is characterized in that: described the second gear unit comprises rotating shaft, and described rotating shaft has identical rotating speed with described generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910169886 CN102013788B (en) | 2009-09-08 | 2009-09-08 | Speed change device and power supply equipment using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910169886 CN102013788B (en) | 2009-09-08 | 2009-09-08 | Speed change device and power supply equipment using same |
Publications (2)
| Publication Number | Publication Date |
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| CN102013788A CN102013788A (en) | 2011-04-13 |
| CN102013788B true CN102013788B (en) | 2013-01-16 |
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| CN 200910169886 Active CN102013788B (en) | 2009-09-08 | 2009-09-08 | Speed change device and power supply equipment using same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675203A (en) * | 1994-03-15 | 1997-10-07 | Volkswagen Ag | Motor/generator arrangement having a movable common stator |
| CN101110547A (en) * | 2006-07-17 | 2008-01-23 | 何晓继 | Flywheel energy accumulating type magnetic moment-changing and speed-changing device |
| CN101197527A (en) * | 2006-12-06 | 2008-06-11 | 通用电气公司 | Electromagentic variable transmission |
| CN101488690A (en) * | 2008-01-17 | 2009-07-22 | 颜广博 | Multifunctional electromagnetic stepless torque changing apparatus |
-
2009
- 2009-09-08 CN CN 200910169886 patent/CN102013788B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675203A (en) * | 1994-03-15 | 1997-10-07 | Volkswagen Ag | Motor/generator arrangement having a movable common stator |
| CN101110547A (en) * | 2006-07-17 | 2008-01-23 | 何晓继 | Flywheel energy accumulating type magnetic moment-changing and speed-changing device |
| CN101197527A (en) * | 2006-12-06 | 2008-06-11 | 通用电气公司 | Electromagentic variable transmission |
| CN101488690A (en) * | 2008-01-17 | 2009-07-22 | 颜广博 | Multifunctional electromagnetic stepless torque changing apparatus |
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| CN102013788A (en) | 2011-04-13 |
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