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Automotive transmission case integrated with mechanical vacuum pump

A technology of mechanical vacuum pump and transmission box, which is applied in the field of automobile transmission system, can solve the problems of low system reliability and high cost, and achieve the effects of improving working conditions, driving stability and reducing volume

Active Publication Date: 2014-12-03
CHANGFENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of this technology of separately setting the vacuum pump are: 1. The reliability of the system is low; 2. The cost of adding an extra motor to drive the vacuum pump is high

Method used

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  • Automotive transmission case integrated with mechanical vacuum pump
  • Automotive transmission case integrated with mechanical vacuum pump

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Experimental program
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Embodiment Construction

[0020] The present invention takes a vane pump as an embodiment. Although the working structure of other vacuum pumps described in this specification is slightly different, it does not affect the principle description of the present invention.

[0021] see figure 1 , the transmission box 6 in the illustration is the transmission device of the electric vehicle, one end of the input shaft 62 of the transmission box is connected with the drive motor 7, and a gear transmission mechanism is set in the cavity 63 of the transmission box to connect with the output shaft 61 of the transmission box to realize power output to Wheels, the wheels are braked through the wheel brake cylinder 1 connected to the brake system master cylinder 2, and the other end of the transmission box input shaft 62 is connected to the vacuum pump 4 to realize the integrated connection of the vacuum pump and realize the power drive of the vacuum pump.

[0022] The pipeline connection of concrete vacuum pump 4 ...

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Abstract

The invention discloses an automotive transmission case integrated with a mechanical vacuum pump. The vacuum pump is connected with one of transmission shafts of the transmission case, and power driving of the vacuum pump is realized; an air inlet of the vacuum pump is connected with a gas storage tank of an automobile brake system and used for providing vacuum servo of the automobile brake system; lubricating oil is led into an inner cavity of the vacuum pump from an inner cavity of the transmission case, an air outlet of the vacuum pump is connected with a lubricating oil pipe of the transmission case and used for spraying the lubricating oil of the transmission case and lubricating. The vacuum pump is provided with four one-way valves, so that vacuum pump also works normally no matter rotating forwardly or reversely, gas in the gas storage tank of the brake system and the lubricating oil can be extracted out from the air inlet and pumped out from the air outlet. Mounting of the vacuum pump is simplified, driving is stable, production cost of automobiles is reduced, and vacuum servo of the automobile brake system is provided and lubricating efficiency of the transmission case is improved via the vacuum pump.

Description

technical field [0001] The invention relates to the technical field of automobile transmission systems, in particular to a vehicle transmission box integrating a mechanical vacuum pump. Background technique [0002] At present, the most commonly used vehicle brake is vacuum booster braking. The technical solution adopted by conventional fuel vehicles is to introduce vacuum from the manifold throttle of the engine, or use a vacuum pump driven externally at the tail of the generator to provide vacuum as brake booster. With the popularization of new energy, electric vehicles have increasingly become the key research direction of various automobile manufacturers, and electric vehicles do not have the intake system of fuel vehicles, so their braking scheme uses an independent motor-driven vacuum pump to provide vacuum source. The problems in the technology of separately setting the vacuum pump are: 1. The reliability of the system is low; 2. The cost of adding an extra motor to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/02F16H57/04
Inventor 张华平胡哓岚姜高松黄伟
Owner CHANGFENG GROUP
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