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External oil pump for speed changer

An external oil pump and transmission technology, applied in the direction of components with teeth, transmission control, belt/chain/gear, etc., can solve the problems of unfavorable energy saving, unfavorable precise regulation of multiple hydraulic modes, etc., and achieve convenient installation Effect

Inactive Publication Date: 2019-02-15
绿传(北京)汽车科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current automatic transmission of electric vehicles usually uses an electronic oil pump, which requires electricity as the power of the oil pump at any time, which is not conducive to saving energy, and is also not conducive to the precise regulation of multiple modes of hydraulic pressure

Method used

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  • External oil pump for speed changer
  • External oil pump for speed changer
  • External oil pump for speed changer

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Embodiment Construction

[0015] In general, the present invention proposes an external oil pump for a transmission, including a housing and a main shaft, wherein the housing includes a terminal portion and a cover, the terminal portion has a through hole, and the cover has a blind hole , the main shaft is rotatably supported in the casing by means of the through hole and the blind hole, and protrudes from one end of the terminal part out of the casing, and the protruding end of the main shaft is used to be fixed with the rotating shaft of the transmission. The external oil pump of the present invention is convenient to install, and it is also convenient to change the type of the oil pump for different transmission types or models.

[0016] Preferably, the external oil pump of the present invention includes a first oil passage and a second oil passage. When the main shaft rotates in the first rotation direction, the first oil passage is an oil inlet passage, and the second oil passage is an outlet oil p...

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Abstract

The invention provides an external oil pump for a speed changer, and the corresponding speed changer. The oil pump comprises a shell and a main shaft, wherein the shell comprises a heading joint partand a cover body; the heading joint part is provided with a through hole; the cover body is provided with a blind hole; the main shaft is rotatably supported in the shell through the through hole andthe blind hole and stretches out of the shell from one end of the heading joint part; and one stretched end of the main shaft is fixed with a rotary shaft of the speed changer. The external oil pump provided by the invention is simple in structure and convenient to install; and the model of the oil pump can be conveniently replaced aiming at different types or models of speed changers.

Description

technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to an external oil pump of an automatic transmission for pure electric vehicles and a corresponding transmission. Background technique [0002] The development of energy-saving and new energy vehicles has become an inevitable choice for my country's energy strategy. The current focus is to promote the industrialization of pure electric vehicles and plug-in hybrid vehicles, popularize non-plug-in hybrid vehicles and energy-saving internal combustion engine vehicles, and upgrade my country's automobile industry. overall technical level. [0003] At present, there are mainly the following schemes for the speed change of electric vehicles. The first option is to use a fixed reduction ratio; the second option is to use a two-speed transmission; the third option is to use the transmission of a traditional fuel vehicle for speed change. Because the motor itself has the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/40
CPCF16H61/40
Inventor 吴潇潇石刚
Owner 绿传(北京)汽车科技股份有限公司
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