CN111749785A - Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear - Google Patents
Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear Download PDFInfo
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- CN111749785A CN111749785A CN202010680029.4A CN202010680029A CN111749785A CN 111749785 A CN111749785 A CN 111749785A CN 202010680029 A CN202010680029 A CN 202010680029A CN 111749785 A CN111749785 A CN 111749785A
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- combustion engine
- generator
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 98
- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 41
- 239000006096 absorbing agent Substances 0.000 claims abstract description 3
- 230000035939 shock Effects 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims 6
- 238000010168 coupling process Methods 0.000 claims 6
- 238000005859 coupling reaction Methods 0.000 claims 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structure Of Transmissions (AREA)
- Retarders (AREA)
Abstract
The internal combustion engine and the generator of the range extender are connected through a planet gear, and the connecting structure comprises a planet gear, the generator, a torque shock absorber, the internal combustion engine, an output shaft of the internal combustion engine and a flywheel of the internal combustion engine. The output shaft of the internal combustion engine is connected with the input shaft of the generator by a coaxial planetary gear train. The generator is internally provided with a planet gear sun gear. The sun wheel of the planet row gear is connected with the input shaft of the generator. And a planet gear of the planet gear row is arranged between the sun gear of the planet gear row and the planet carrier of the planet gear row. The internal combustion engine output shaft is coaxially provided with a planet row gear tooth ring shaft, and the other end of the planet row gear tooth ring shaft is fixedly provided with a planet row gear tooth ring. The sun gear of the planet row gear is fixedly connected with the gear ring shaft of the planet row gear. The invention realizes the coaxial input and output, reduces the volume and weight of the range extender, and has low noise and high reliability while improving the efficiency of the range extender compared with a parallel shaft connecting structure.
Description
Technical Field
The invention belongs to the technical field of vehicle power equipment, and particularly relates to a connecting structure for connecting an internal combustion engine and a generator of a range extender through a planetary gear.
Background
A range extender is conventionally defined as a combination of an internal combustion engine and a generator, and is an essential component of a range-extended electric vehicle. Compared with a pure electric vehicle, the range-extended electric vehicle provided with the range extender has the advantages of long driving range, strong temperature environment adaptability, wide product application range and the like; compared with the traditional fuel vehicle, the fuel vehicle has the advantages of low fuel consumption, low exhaust emission, good acceleration performance, low noise and the like. The power of an internal combustion engine usually selected by the range extender is not large, and in order to enable the range extender to work efficiently, the mode selection matching and the connection mode of the internal combustion engine and the generator are one of the core technologies of the range extender.
The internal combustion engine and the generator of a conventional range extender are generally in the form of direct connections. Such as by way of a torque converter and dual mass flywheel. The connecting structure has the advantages of high reliability and good NVH performance under the steady-state working condition, but has the defects of obvious flexibility characteristic in the low-speed starting stage, larger torsion angle, resonance problem under low speed and low frequency, and further the problem that the connecting structure is easy to damage in the starting stage; in addition, the output shaft of the internal combustion engine and the input shaft of the generator can also be connected in a rigid direct connection mode, but the connection structure has large impact and is poor in reliability and NVH. The power transmission ratio in the direct connection mode is 1:1 in a steady state, and the working efficiency of the range extender can be improved only through the model selection matching of the internal combustion engine and the generator. The high-efficiency working area of the internal combustion engine has lower rotating speed, the high-efficiency working area of the generator has higher rotating speed, the difficulty in improving the working efficiency of the range extender is higher by matching and selecting types, and the overall working efficiency of the range extender is not high.
Chinese patent publication No. CN210087479 discloses a connection structure of a range extender engine and a generator. The range extender connects the engine and the generator in a parallel shaft tooth connection mode, and the ratio of the gear of the output shaft of the engine to the gear of the input shaft of the generator is 1.8:1 and 2.2: 1. The connecting structure of the parallel shaft gear can well improve the working efficiency of the range extender. However, the connection of the parallel shaft teeth inevitably causes problems of volume increase, NVH, reliability at high-speed operation, and noise because the output and the input are not coaxial.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a connecting structure for connecting an internal combustion engine and a generator of a range extender through a planetary gear, and the connecting structure has the effects of improving the working operation efficiency of the range extender, reducing NVH (noise, vibration and harshness) noise and improving the high-speed operation reliability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the internal combustion engine and the generator of the range extender are connected through a planet gear, and the connecting structure comprises a planet gear, the generator, a torque shock absorber, the internal combustion engine, an output shaft of the internal combustion engine and a flywheel of the internal combustion engine.
The output shaft of the internal combustion engine is connected with the input shaft of the generator by adopting a coaxial planet gear row.
The planet row gear comprises a planet row gear tooth ring shaft, a planet row gear tooth ring, a planet row gear planet carrier, a planet row gear sun gear and a planet row gear planet gear.
The planet row gear sun wheel is rotatably arranged in the generator.
The planet gear sun gear is connected with an input shaft of the generator integrally.
The planet carrier of the planet row gear is fixedly arranged in the generator.
The planet gear of the planet gear row is rotatably arranged between the sun gear of the planet gear row and the planet carrier of the planet gear row.
The internal combustion engine is provided with an internal combustion engine output shaft, and an internal combustion engine flywheel and a torque damper are arranged on the internal combustion engine output shaft.
And the planet gear ring shaft is coaxially arranged on the output shaft of the internal combustion engine. And the other end of the planet row gear ring shaft is fixedly provided with a planet row gear ring.
The planet row gear ring gear is rotatably arranged on the planet carrier of the planet row gear.
And the planet row gear sun gear penetrates through a planet carrier of the planet row gear and is fixedly connected with a gear ring shaft of the planet row gear.
Furthermore, the power transmission ratio from the planet gear ring gear to the planet gear sun gear can be designed according to the optimal working condition matching requirements of the internal combustion engine and the generator.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine can be connected with a gear ring of the planet row, the input shaft of the generator is connected with a sun gear of the planet row gear, and a planet carrier of the planet row gear is fixed.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a planet carrier of the planet gear, the input shaft of the generator is connected with a gear ring of the planet gear, and a sun gear of the planet gear is fixed.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a planet carrier of the planet gear, the input shaft of the generator is connected with a sun gear of the planet gear, and a gear ring of the planet gear is fixed.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a sun gear of the planet row gear, the input shaft of the generator is connected with a planet carrier of the planet row gear, and a gear ring of the planet row gear is fixed.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a gear ring of the planet row, the input shaft of the generator is connected with a planet carrier of the planet row gear, and a sun gear of the planet row gear is fixed.
Further, the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a sun gear of the planet row gear, the input shaft of the generator is connected with a gear ring of the planet row gear, and a planet carrier of the planet row gear is fixed.
The invention has the beneficial effects that: the planetary gear train is used for connecting the internal combustion engine and the generator, so that the input and the output are coaxial, the volume and the weight of the range extender are reduced, and compared with a parallel shaft connecting structure, the planetary gear train has the advantages of low noise and high reliability while the efficiency of the range extender is improved. The working operation efficiency of the range extender is improved, the NVH noise is reduced, and the high-speed operation reliability is improved. The internal combustion engine and the generator can work under the optimal working condition simultaneously, so that the working efficiency of the range extender is improved, and the range extender has the effects of saving oil and reducing emission in the practical application of the range extender electric vehicle. The rotating speed output from the internal combustion engine can be increased or reduced through the planetary gear and then input to the generator according to requirements, so that the internal combustion engine has a wider torque and rotating speed output range in a limited optimal working condition range. At the same time, the generator is also enabled to have a wider range of power output.
Drawings
FIG. 1 is a schematic view of an unassembled structure of the present invention;
FIG. 2 is a schematic view of the assembled structure of the present invention;
FIG. 3 is a schematic axial cross-sectional view of the present invention.
Reference numerals: 1-planet row gear ring shaft, 2-planet row gear ring gear, 3-planet row gear planet carrier, 4-generator, 5-planet row gear sun gear, 6-torque damper, 7-planet row gear planet gear, 8-internal combustion engine, 9-internal combustion engine output shaft and 10-internal combustion engine flywheel.
Detailed Description
For the convenience of understanding, the technical scheme of the invention is further described in detail by embodiments with reference to the attached drawings:
as shown in fig. 1 to 3, a connection structure for connecting an internal combustion engine and a generator of a range extender through a planetary gear comprises a planetary gear ring shaft 1, a planetary gear ring 2, a planetary gear planet carrier 3, a generator 4, a planetary gear sun gear 5, a torque damper 6, a planetary gear planet gear 7, an internal combustion engine 8, an internal combustion engine output shaft 9 and an internal combustion engine flywheel 10.
The generator 4 is internally and fixedly provided with a planet carrier 3. A planet gear sun gear 5 is rotatably arranged in the generator 4. The planet gear sun gear 5 is integrally connected with an input shaft of the generator 4.
A planet row gear 7 is rotatably arranged between the planet row gear sun gear 5 and the planet row gear planet carrier 3.
The internal combustion engine 8 is provided with an internal combustion engine output shaft 9, and the internal combustion engine output shaft 9 is provided with an internal combustion engine flywheel 10.
The engine output shaft 9 is provided with a torque damper 6.
The internal combustion engine output shaft 9 is coaxially provided with a planet gear ring gear shaft 1.
The other end of the planet row gear ring shaft 1 is fixedly provided with a planet row gear ring 2. Thereby connecting the engine output shaft 9 of the engine 8 with the planet carrier ring gear 2.
The planet row gear ring gear 2 is rotatably arranged on the planet row gear carrier 3.
The planet row gear sun gear 5 penetrates through the planet row gear carrier 3 and is fixedly connected with the planet row gear ring gear shaft 1.
The power transmission ratio of the planet row gear ring gear 2 to the planet row gear sun gear 5 can be designed according to the optimal working condition matching requirements of the internal combustion engine and the generator.
An internal combustion engine output shaft 9 of the internal combustion engine 8 transmits power to a planet row gear ring shaft 1 through closing of the torque damper 6, the planet row gear ring shaft 1 drives a planet row gear ring 2 to rotate, a planet row gear planet carrier 3 is fixed, the power is transmitted to a planet row gear sun gear 5 through the planet row gear, and the planet row gear sun gear 5 is integrally connected with an input shaft of the generator 4 so as to drive the generator 4 to rotate for power generation.
The output shaft of the internal combustion engine 8 is connected with the input shaft of the generator 4 by a coaxial planetary gear. Due to the characteristics of the planet row gears, the specific connection modes include the following six types:
the output shaft of the internal combustion engine 8 can be connected to the planet carrier 2, while the input shaft of the generator 4 is connected to the planet sun gear 5, and the planet carrier 3 is fixed.
Second, the output shaft of the internal combustion engine 8 can be connected with the planet carrier 3, while the input shaft of the generator 4 is connected with the planet ring gear 2, and the planet sun gear 5 is fixed.
And thirdly, an output shaft of the internal combustion engine 8 can be connected with the planet carrier 3 of the planet gear, an input shaft of the generator 4 is connected with the sun gear 5 of the planet gear, and the ring gear 2 of the planet gear is fixed.
And fourthly, an output shaft of the internal combustion engine 8 can be connected with a planet gear sun gear 5, an input shaft of the generator 4 is connected with a planet gear carrier 3, and the planet gear ring gear 2 is fixed.
Fifth, the output shaft of the internal combustion engine 8 can be connected with the planet row gear ring gear 2, while the input shaft of the generator 4 is connected with the planet row gear carrier 3, and the planet row gear sun gear 5 is fixed.
Sixth, the output shaft of the internal combustion engine 8 can be connected with the planet gear sun gear 5, while the input shaft of the generator 4 is connected with the planet gear ring gear 2, and the planet gear carrier 3 is fixed.
The planetary gear train is used for connecting the internal combustion engine and the generator, so that the input and the output are coaxial, the volume and the weight of the range extender are reduced, and compared with a parallel shaft connecting structure, the planetary gear train has the advantages of low noise and high reliability while the efficiency of the range extender is improved. The working operation efficiency of the range extender is improved, the NVH noise is reduced, and the high-speed operation reliability is improved. The internal combustion engine and the generator can work under the optimal working condition simultaneously, so that the working efficiency of the range extender is improved, and the range extender has the effects of saving oil and reducing emission in the practical application of the range extender electric vehicle. The rotating speed output from the internal combustion engine can be increased or reduced through the planetary gear and then input to the generator according to requirements, so that the internal combustion engine has a wider torque and rotating speed output range in a limited optimal working condition range. At the same time, the generator is made to have a wider range of power output.
The above embodiments are merely illustrative or explanatory of the technical solution of the invention and should not be construed as limiting the technical solution of the invention, and it is apparent that various modifications and variations can be made to the invention by those skilled in the art without departing from the spirit and scope of the invention. The invention also encompasses these modifications and variations provided they come within the scope of the claims and their equivalents.
Claims (7)
1. A connecting structure for connecting an internal combustion engine and a generator of a range extender through a planet gear comprises a planet gear, the generator, a torque shock absorber, the internal combustion engine, an internal combustion engine output shaft and an internal combustion engine flywheel;
the output shaft of the internal combustion engine is connected with the input shaft of the generator by adopting a coaxial planet gear row;
the planet row gear comprises a planet row gear tooth ring shaft, a planet row gear tooth ring, a planet row gear planet carrier, a planet row gear sun gear and a planet row gear planet gear;
the planet gear sun gear is rotatably arranged in the generator;
the planet gear sun gear is integrally connected with an input shaft of the generator;
the planet carrier of the planet gear row is fixedly arranged in the generator;
the planet gear of the planet gear row is rotatably arranged between the sun gear of the planet gear row and the planet carrier of the planet gear row;
the internal combustion engine is provided with an internal combustion engine output shaft, and an internal combustion engine flywheel and a torque damper are arranged on the internal combustion engine output shaft;
and the planet gear ring shaft is coaxially arranged on the output shaft of the internal combustion engine. The other end of the planet row gear ring shaft is fixedly provided with a planet row gear ring;
the planet row gear ring gear is rotatably arranged on the planet carrier of the planet row gear;
and the planet row gear sun gear penetrates through a planet carrier of the planet row gear and is fixedly connected with a gear ring shaft of the planet row gear.
2. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine can be connected with a gear ring of the planet row, the input shaft of the generator is connected with a sun gear of the planet row gear, and a planet carrier of the planet row gear is fixed.
3. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a planet carrier of the planet gear, the input shaft of the generator is connected with a gear ring of the planet gear, and a sun gear of the planet gear is fixed.
4. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a planet carrier of the planet gear, the input shaft of the generator is connected with a sun gear of the planet gear, and a gear ring of the planet gear is fixed.
5. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with the sun gear of the planet gear, the input shaft of the generator is connected with the planet carrier of the planet gear, and the ring gear of the planet gear is fixed.
6. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with a gear ring of the planet row, the input shaft of the generator is connected with a planet carrier of the planet row gear, and a sun gear of the planet row gear is fixed.
7. The range extender coupling structure in which an internal combustion engine and a generator are coupled via a planetary gear set, according to claim 1, wherein: the specific connection mode of the output shaft of the internal combustion engine and the input shaft of the generator is as follows: the output shaft of the internal combustion engine is connected with the sun gear of the planet gear, the input shaft of the generator is connected with the gear ring of the planet gear, and the planet carrier of the planet gear is fixed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010680029.4A CN111749785A (en) | 2020-07-15 | 2020-07-15 | Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear |
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CN202010680029.4A CN111749785A (en) | 2020-07-15 | 2020-07-15 | Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear |
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CN202010680029.4A Pending CN111749785A (en) | 2020-07-15 | 2020-07-15 | Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112319246A (en) * | 2020-11-10 | 2021-02-05 | 王文君 | Range-extending type whole vehicle fuel-saving optimization method |
CN117662291A (en) * | 2024-01-31 | 2024-03-08 | 泰州市海锋机械制造有限公司 | Generating set who contains silence structure |
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CN206765799U (en) * | 2017-04-28 | 2017-12-19 | 科力远混合动力技术有限公司 | A kind of stroke-increasing electric automobile transmission device |
DE102019105998A1 (en) * | 2019-03-08 | 2019-05-16 | FEV Europe GmbH | Drive device for a motor vehicle |
CN212508538U (en) * | 2020-07-15 | 2021-02-09 | 青岛岳达新动新能源科技有限公司 | Connecting structure for connecting internal combustion engine and generator of range extender through planetary gear |
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2020
- 2020-07-15 CN CN202010680029.4A patent/CN111749785A/en active Pending
Patent Citations (5)
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DE102013102185A1 (en) * | 2012-03-06 | 2013-09-12 | Avl List Gmbh | Drive unit system for motor car, has connector housing attached at crankshaft housing, and gear housing whose end region is connected with clutch housing at another interface, and bearings are arranged in connector housings and gear housing |
CN203344752U (en) * | 2013-05-22 | 2013-12-18 | 广州汽车集团股份有限公司 | Range extending system of extended-range electric car and extended-range electric car |
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CN117662291A (en) * | 2024-01-31 | 2024-03-08 | 泰州市海锋机械制造有限公司 | Generating set who contains silence structure |
CN117662291B (en) * | 2024-01-31 | 2024-05-03 | 泰州市海锋机械制造有限公司 | Generating set who contains silence structure |
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