CN1054340A - Differential variable frequency generator set - Google Patents
Differential variable frequency generator set Download PDFInfo
- Publication number
- CN1054340A CN1054340A CN 90101004 CN90101004A CN1054340A CN 1054340 A CN1054340 A CN 1054340A CN 90101004 CN90101004 CN 90101004 CN 90101004 A CN90101004 A CN 90101004A CN 1054340 A CN1054340 A CN 1054340A
- Authority
- CN
- China
- Prior art keywords
- variable
- stator
- frequency
- rotor
- differential
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 230000008520 organization Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a constant-power variable-frequency generator set. The unit adopts an electromechanical integration mode; the split-flow rotation is realized by a power machine (a three-phase asynchronous motor or an internal combustion engine) and a low-power stepless speed changer. The (electromagnetic or mechanical) planetary differential self-locking control mechanism is matched with a differential variable-frequency generator. The stator of the differential variable frequency generator set is controlled by a differential self-locking control mechanism and can rotate in the same direction with the rotor. The relative speed of the rotor and the stator can be continuously changed by a continuously variable transmission. Therefore, the current generated by the generator set can be used for stepless frequency conversion and can be directly used for a variable-frequency variable-speed motor. The generator set has compact structure, no complicated electronic components and parts and is suitable for small and medium-sized generator sets.
Description
The present invention relates to a kind of variable-frequency power generation unit.Belong to the generating equipment technical field.
The frequency conversion Variable Speed Technology is the emerging advanced technology of the eighties in the world.Extensively adopt for industrially-advanced country.The existing Yin Jin And of China begins to promote.But the variable frequency power supply of international popular is to adopt the three-phase alternating-current supply of fixed frequency to pass through the electronic devices and components frequency conversion.Therefore the quality of components and parts directly affects the stability of variable frequency power supply frequency.And influence the stability of electric network source frequency.The import components and parts cost an arm and a leg at present.Homemade component quality is not high.Useful life is very short, and maintenance specification requirement height.Investment is big, so the variable-frequency and variable-speed technology is popularized very big difficulty in addition in an all-round way in China.
The purpose of this invention is to provide a kind of differential variable-frequency generating set.Can send the variable frequency power supply that can make stepless frequency conversion by this generating set, directly power supply machine uses.Its frequency and frequency conversion amplitude be step-less adjustment arbitrarily.
Technical scheme of the present invention is to adopt the electromechanical integration mode: the shunting drive technology, form from lock control mechanism and differential generator four parts by engine (comprising threephase asynchronous machine) stepless speed changing mechanism is differential.
Concrete structure of the present invention and transmission connection relation are as follows:
By the shunting of the output axle head of engine: with shaft coupling 1. (clutch) central shaft 2. make generator rotor 3. with the output shaft coupling of engine.And does rotation synchronously; The input component that buncher is installed on power machine output shaft in addition 4. (driving link) 5. is enclosed within outside the above-mentioned central shaft with a sleeve in addition.The Passive part that the one end the is equipped with buncher 6. other end is installed the 7. differential output planetary gear from lock control mechanism of differential input component pivoted arm from lock control mechanism and is 8. 9. connect with the stator of differential generator.All mechanism is all in same axis running.(accompanying drawing one), differential is the small teeth difference planetary mechanism of process repacking from lock control mechanism.The method of repacking is the lining that a particular curve is installed in the input rotary arm bearing of few tooth difference mechanism.Its effect is to make the moment that is transmitted by the generator gap.The active force that is produced changes the direction of application point.Make big portion masterpiece be used in the pivot of tumbler shaft.Thereby reach its self-locking action (being its one-directional rotation effect that has self-locking worm gear to pay).(accompanying drawing two)
The following describes operation principle of the present invention.
The rotor and the engine of differential type generator are synchronous.And the stator of generator is rotatable.Its rotating speed is subjected to the low-power continuous variable transmission output speed by differential control from lock control mechanism.Can do infinitely variable speeds.The relative rotation speed of generator amature and stator promptly is subjected to the control of buncher and can does infinitely variable speeds.Realize the frequency conversion of generator by the relative velocity of this change rotor and stator.
The stator of frequency conversion generator is subjected to the rotor effect a moment of torsion identical with its direction of rotation, and it acts on the output of differential self-locking mechanism, and the gear ring of differential self-locking mechanism is fixed on the support, because the self-locking action of mechanism can not be rotated stator.It is also the highest to make the relative velocity of rotor and stator reach the frequency of peak (being the rotating speed of engine) generator.When the needs frequency conversion, only need drive the back buncher, buncher transfers a little moment of torsion from engine.Its size equals to overcome differential frictional resistance from lock control mechanism.(frictional resistance of gear mesh and bearing).Differential attachment gets final product release.The stator of generator is the rotating speed speed change on demand.The relative velocity of itself and rotor constantly reduces.Generator frequency reduces too.Its mechanical loss only is the friction loss of mechanism.
It is reasonable that permanent difference power dynamic formula variable-frequency power generation unit has compact conformation, and steadily reliably, the frequency conversion scope is big, the mechanical efficiency height in running.The circuit of no multiple electronic devices and components.Operation and maintenance are convenient, and the operation automation of should multi-machine interaction being more convenient for is suitable for medium and small generating set.
Patent application of the present invention is that patent No. is: the series application of 87,202,399 0 87,205,626 0 88106928 No. 0 patent applications.
Claims (2)
1, a kind of permanent difference power dynamic formula variable-frequency power generation unit.The rotor that it is characterized in that generator is all rotatable; Its rotor is Shuaied Zhou And by the output shaft coupling of shaft coupling (or clutch) with engine by center Gong.Rotate synchronously with engine.The output of stator and the few tooth difference mechanism with auto-lock function connects and controlled by it.The input component of few tooth difference mechanism, the output of eccentric pivoted arm and stepless speed changing mechanism connects.And the output shaft coupling of the input component of stepless speed changing mechanism and engine and rotation synchronously.The speed variable of the output of buncher is being controlled the stator rotating speed of generating set from lock control mechanism by few tooth difference.Make the rotating speed of stator can do infinitely variable speeds.Stator and rotor rotate in the same way.Its relative rotation speed is the frequency conversion mechanism of generating set.
2, press the permanent difference power dynamic formula variable-frequency power generation unit of claim 1.It is characterized in that having cover and eccentric shaft that a particular curve is installed in the eccentric rotary arm bearing of few tooth difference controlling organization of auto-lock function.The cover of this particular curve and eccentric shaft can only drive planetary gear by eccentric pivoted arm for few tooth difference mechanism.And planetary gear can not drive the one-way driving mechanism of eccentric pivoted arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101004 CN1054340A (en) | 1990-02-24 | 1990-02-24 | Differential variable frequency generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90101004 CN1054340A (en) | 1990-02-24 | 1990-02-24 | Differential variable frequency generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054340A true CN1054340A (en) | 1991-09-04 |
Family
ID=4876898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90101004 Pending CN1054340A (en) | 1990-02-24 | 1990-02-24 | Differential variable frequency generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054340A (en) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976180B (en) * | 2006-12-14 | 2010-05-26 | 天津市新源电气科技有限公司 | Variable speed variable frequency pneumatic electric machine and excitation control system |
| CN102506135B (en) * | 2005-10-28 | 2015-10-28 | 福博科知识产权有限责任公司 | Motor driver |
| US9611921B2 (en) | 2012-01-23 | 2017-04-04 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US9618100B2 (en) | 2008-05-07 | 2017-04-11 | Fallbrook Intellectual Property Company Llc | Assemblies and methods for clamping force generation |
| CN106762140A (en) * | 2016-12-19 | 2017-05-31 | 南方科技大学 | Distributed power generation device of aeroderivative fuel machine |
| US9676391B2 (en) | 2007-02-01 | 2017-06-13 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US9677650B2 (en) | 2013-04-19 | 2017-06-13 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9683638B2 (en) | 2005-12-30 | 2017-06-20 | Fallbrook Intellectual Property Company Llc | Continuously variable gear transmission |
| US9683640B2 (en) | 2008-06-06 | 2017-06-20 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US9709138B2 (en) | 2005-11-22 | 2017-07-18 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9726282B2 (en) | 2006-06-26 | 2017-08-08 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9732848B2 (en) | 2003-02-28 | 2017-08-15 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9739375B2 (en) | 2007-12-21 | 2017-08-22 | Fallbrook Intellectual Property Company Llc | Automatic transmissions and methods therefor |
| US9850993B2 (en) | 2008-02-29 | 2017-12-26 | Fallbrook Intellectual Property Company Llc | Continuously and/or infinitely variable transmissions and methods therefor |
| US9869388B2 (en) | 2007-07-05 | 2018-01-16 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9878717B2 (en) | 2008-08-05 | 2018-01-30 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US9903450B2 (en) | 2008-08-26 | 2018-02-27 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9920823B2 (en) | 2009-04-16 | 2018-03-20 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9945456B2 (en) | 2007-06-11 | 2018-04-17 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10036453B2 (en) | 2004-10-05 | 2018-07-31 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10047861B2 (en) | 2016-01-15 | 2018-08-14 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US10056811B2 (en) | 2007-04-24 | 2018-08-21 | Fallbrook Intellectual Property Company Llc | Electric traction drives |
| US10066713B2 (en) | 2008-06-23 | 2018-09-04 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10066712B2 (en) | 2010-03-03 | 2018-09-04 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10094453B2 (en) | 2007-02-16 | 2018-10-09 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10100927B2 (en) | 2007-11-16 | 2018-10-16 | Fallbrook Intellectual Property Company Llc | Controller for variable transmission |
| US10197147B2 (en) | 2010-11-10 | 2019-02-05 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10208840B2 (en) | 2005-12-09 | 2019-02-19 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10253880B2 (en) | 2008-10-14 | 2019-04-09 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10260607B2 (en) | 2007-02-12 | 2019-04-16 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions and methods therefor |
| US10458526B2 (en) | 2016-03-18 | 2019-10-29 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, systems and methods |
| US11174922B2 (en) | 2019-02-26 | 2021-11-16 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US11215268B2 (en) | 2018-11-06 | 2022-01-04 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11667351B2 (en) | 2016-05-11 | 2023-06-06 | Fallbrook Intellectual Property Company Llc | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission |
-
1990
- 1990-02-24 CN CN 90101004 patent/CN1054340A/en active Pending
Cited By (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10428939B2 (en) | 2003-02-28 | 2019-10-01 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9732848B2 (en) | 2003-02-28 | 2017-08-15 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10036453B2 (en) | 2004-10-05 | 2018-07-31 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| CN102506135B (en) * | 2005-10-28 | 2015-10-28 | 福博科知识产权有限责任公司 | Motor driver |
| US9950608B2 (en) | 2005-10-28 | 2018-04-24 | Fallbrook Intellectual Property Company Llc | Electromotive drives |
| US9709138B2 (en) | 2005-11-22 | 2017-07-18 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10711869B2 (en) | 2005-11-22 | 2020-07-14 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10208840B2 (en) | 2005-12-09 | 2019-02-19 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US11454303B2 (en) | 2005-12-09 | 2022-09-27 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9683638B2 (en) | 2005-12-30 | 2017-06-20 | Fallbrook Intellectual Property Company Llc | Continuously variable gear transmission |
| US11598397B2 (en) | 2005-12-30 | 2023-03-07 | Fallbrook Intellectual Property Company Llc | Continuously variable gear transmission |
| US9726282B2 (en) | 2006-06-26 | 2017-08-08 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| CN1976180B (en) * | 2006-12-14 | 2010-05-26 | 天津市新源电气科技有限公司 | Variable speed variable frequency pneumatic electric machine and excitation control system |
| US9878719B2 (en) | 2007-02-01 | 2018-01-30 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US10703372B2 (en) | 2007-02-01 | 2020-07-07 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US9676391B2 (en) | 2007-02-01 | 2017-06-13 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US10260607B2 (en) | 2007-02-12 | 2019-04-16 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions and methods therefor |
| US10094453B2 (en) | 2007-02-16 | 2018-10-09 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10056811B2 (en) | 2007-04-24 | 2018-08-21 | Fallbrook Intellectual Property Company Llc | Electric traction drives |
| US9945456B2 (en) | 2007-06-11 | 2018-04-17 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9869388B2 (en) | 2007-07-05 | 2018-01-16 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10260629B2 (en) | 2007-07-05 | 2019-04-16 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US11125329B2 (en) | 2007-11-16 | 2021-09-21 | Fallbrook Intellectual Property Company Llc | Controller for variable transmission |
| US10100927B2 (en) | 2007-11-16 | 2018-10-16 | Fallbrook Intellectual Property Company Llc | Controller for variable transmission |
| US9739375B2 (en) | 2007-12-21 | 2017-08-22 | Fallbrook Intellectual Property Company Llc | Automatic transmissions and methods therefor |
| US10704687B2 (en) | 2007-12-21 | 2020-07-07 | Fallbrook Intellectual Property Company Llc | Automatic transmissions and methods therefor |
| US9850993B2 (en) | 2008-02-29 | 2017-12-26 | Fallbrook Intellectual Property Company Llc | Continuously and/or infinitely variable transmissions and methods therefor |
| US9618100B2 (en) | 2008-05-07 | 2017-04-11 | Fallbrook Intellectual Property Company Llc | Assemblies and methods for clamping force generation |
| US9683640B2 (en) | 2008-06-06 | 2017-06-20 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10634224B2 (en) | 2008-06-06 | 2020-04-28 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10066713B2 (en) | 2008-06-23 | 2018-09-04 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9878717B2 (en) | 2008-08-05 | 2018-01-30 | Fallbrook Intellectual Property Company Llc | Systems and methods for control of transmission and/or prime mover |
| US10704657B2 (en) | 2008-08-26 | 2020-07-07 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9903450B2 (en) | 2008-08-26 | 2018-02-27 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10253880B2 (en) | 2008-10-14 | 2019-04-09 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9920823B2 (en) | 2009-04-16 | 2018-03-20 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10746270B2 (en) | 2009-04-16 | 2020-08-18 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10066712B2 (en) | 2010-03-03 | 2018-09-04 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10197147B2 (en) | 2010-11-10 | 2019-02-05 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10428915B2 (en) | 2012-01-23 | 2019-10-01 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US9611921B2 (en) | 2012-01-23 | 2017-04-04 | Fallbrook Intellectual Property Company Llc | Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor |
| US10323732B2 (en) | 2013-04-19 | 2019-06-18 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US9677650B2 (en) | 2013-04-19 | 2017-06-13 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US10920882B2 (en) | 2016-01-15 | 2021-02-16 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US11306818B2 (en) | 2016-01-15 | 2022-04-19 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US10047861B2 (en) | 2016-01-15 | 2018-08-14 | Fallbrook Intellectual Property Company Llc | Systems and methods for controlling rollback in continuously variable transmissions |
| US10458526B2 (en) | 2016-03-18 | 2019-10-29 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, systems and methods |
| US11667351B2 (en) | 2016-05-11 | 2023-06-06 | Fallbrook Intellectual Property Company Llc | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission |
| CN106762140A (en) * | 2016-12-19 | 2017-05-31 | 南方科技大学 | Distributed power generation device of aeroderivative fuel machine |
| US11215268B2 (en) | 2018-11-06 | 2022-01-04 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11624432B2 (en) | 2018-11-06 | 2023-04-11 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11174922B2 (en) | 2019-02-26 | 2021-11-16 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US11530739B2 (en) | 2019-02-26 | 2022-12-20 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
| US12000458B2 (en) | 2019-02-26 | 2024-06-04 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1054340A (en) | Differential variable frequency generator set | |
| CN101598113B (en) | Wind power plant generation device | |
| CA2356726A1 (en) | Transmission for wind generators | |
| CA2466756A1 (en) | Differential geared turbine engine with torque modulation capability | |
| CN100417008C (en) | Speed changing constant frequency method of wind force generation | |
| CN1089150C (en) | Multifunctional planetary speed reducer | |
| CN103124115B (en) | Wind power generation plant | |
| CN102269123A (en) | Wind power generation device | |
| CN1399393A (en) | Variable-frequency stepless speed-regulating motor | |
| CN201213248Y (en) | Continuously variant constant frequency operating wind electricity generator | |
| CN215831060U (en) | Controllable constant speed planetary gear transmission mechanism | |
| CN201590715U (en) | Deceleration variable-speed drive device | |
| CN102338030B (en) | Speed regulation control device for front-end speed-regulation-type wind power generator system | |
| CN206790283U (en) | Energy conversion apparatus and energy source device | |
| CN2631115Y (en) | Electromagnetic speed variator | |
| CN2163259Y (en) | Fan and pump speed governor | |
| CN2274703Y (en) | Mechanical differential phase regulator | |
| CN215990476U (en) | Novel adjustable torque variable speed motor | |
| CN2172818Y (en) | Medium-low speed high-efficient variable drive | |
| CN1041433A (en) | Constant-power stepless speed variator | |
| CN220706325U (en) | Two-stage radial series harmonic speed reducer with large reduction ratio | |
| CN221443278U (en) | Wind turbine gear speed increasing box | |
| CN209164500U (en) | A kind of planet wheel decelerator with multistep speed regulation | |
| CN2420323Y (en) | Stepless controller for eccentricity of vibrative road roller | |
| CN206958174U (en) | Gear-box and energy conversion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |