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Internal recycle booster

A booster, internal circulation technology, applied in clutches, mechanical equipment, etc., can solve the problems of return spring corrosion, dust cover failure, sealing ring damage, etc., and achieve the effect of prolonging service life and reducing failure frequency.

Inactive Publication Date: 2010-06-30
蒋伟荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, if the dust cover breaks or falls off, it will cause external corrosion to enter the booster cylinder, causing the return spring to corrode and the sealing ring to be damaged, thus causing the clutch assembly to fail prematurely
In addition, the aging of the dust cover is also a potential failure factor

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0011] Referring to the accompanying drawings, this internal circulation booster includes a housing 21, an end cover 23, a booster piston 20, a return spring 6 and a piston rod 24, the booster piston 20 is placed in the housing 21, and the booster piston 20 drives the cylinder The body 21 is divided into a front chamber 7 and a rear chamber 9. The return spring 6 is installed in the housing 21 and is in contact with the booster piston 20. The piston rod 24 is connected with the push rod 1 through the cardan shaft 2. The cardan shaft is a ball joint; the housing 21 is provided with an air inlet 18, an air outlet 10 and an oil inlet 19, and the air inlet 18 communicates with the air outlet 10 and the rear chamber 9 respectively, so that The end cover 23 and the front cavity 7 form a fully enclosed cavity, and the end cover 23 and the front cavity housing are sealed with an O-shaped sealing ring 22, which can effectively prevent external moisture and impurities from entering the f...

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Abstract

The invention discloses an internal recycle booster comprising a case (21), an end cover (23), a boosting piston (20), an offsetting spring (6) and a piston rod (24), wherein the boosting piston (20) is arranged in the case (21); the boosting piston (20) divides the cylinder body into a front cavity (7) and a rear cavity (9); the offsetting spring (6) is installed in the case (21) and is in contact with the boosting piston (20); the case (21) is provided with an air inlet (18), an air outlet (10) and an oil inlet (19), wherein the air inlet (18) is respectively communicated with the air outlet (10) and the rear cavity (9). The internal recycle booster is characterized in that the end cover (23) and the front cavity (7) form a totally-enclosed cavity body which is communicated with the air outlet (10). After the front cavity of the internal recycle booster becomes a sealed cavity, the front cavity is not directly communicated with outside, thus preventing outside impurities from entering the front cavity, lowering booster invalidation efficiency, prolonging the service life of the booster, and improving the performance of the booster assembly.

Description

technical field [0001] The invention relates to an improved invention of a vehicle clutch booster, in particular to an internal circulation booster in which the front cavity of the booster is a fully enclosed cavity. Background technique [0002] In the prior art, the automobile clutch generally uses the pressure of the hydraulic chamber to change the pressure of the clutch booster chamber, thereby increasing the driving force of the push rod to achieve the purpose of increasing the operating force, and its reset is to rely on an external The tension spring is used to help the piston in the cavity to reset, but because the force of the reset spring is not on the central axis of the piston, partial wear occurs between the piston and the cylinder wall. After working for a period of time, a unilateral air gap between the piston and cylinder is often caused If it is too large, air leakage will make the clutch ineffective, so the service life of the clutch will be shorter. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/04
Inventor 蒋伟荣
Owner 蒋伟荣
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