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Integrated piston and sealed plunger type internal respiration clutch booster

An internal breathing, plunger technology, used in clutches, fluid pressure actuation devices, engine seals, etc., can solve problems such as reducing eccentric wear, failure, and deformation of seals, improving performance stability and improving sealing. effect of effect

Pending Publication Date: 2020-10-09
RUILI GROUP RUIAN AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a clutch booster that can maintain the same concentricity, significantly reduce the occurrence of eccentric wear between the seals, and solve the excessive pressure on the guide sleeve and the seal ring on the air booster piston. Extrusion causes the deformation of the sealing ring to fail, and can replace the dust cover of the prior art to achieve a stable dust-proof effect. The one-piece closed plunger type internal breathing clutch booster

Method used

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  • Integrated piston and sealed plunger type internal respiration clutch booster
  • Integrated piston and sealed plunger type internal respiration clutch booster
  • Integrated piston and sealed plunger type internal respiration clutch booster

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Embodiment Construction

[0044] An embodiment of a one-piece piston-enclosed plunger-type internal breath clutch booster according to the present invention will be described below with reference to the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.

[0045] It should be noted that the expressions "first" and "second" used in the embodiments of the present invention are used to distinguish between two entities with the same name but different parameters or different parameters. It can be seen that "first" and "second " is only for the convenience of expression, and should not be understood as a limitation on the e...

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Abstract

The invention provides an integrated piston and sealed plunger type internal respiration clutch booster. A cylinder cover comprises a cover body and a piston channel formed on the cover body. Two sidewalls of the piston channel extend towards one side of the cover body and protrude to form a protruding portion. The outside wall face of the protruding portion is recessed, so that a first installation groove is formed, and the first installation groove and an installation plug-in piece at the bottom of a dustproof cover are matched and mutually clamped. The inside wall face of the protruding portion forms a boss-shaped flange. A lubricating bearing and a dustproof oil seal are arranged between a piston shaft and the inner wall of the piston channel. An oil storage cavity is formed between the portion, between the lubricating bearing and the dustproof oil seal, of the piston shaft and the inside cavity wall of the cylinder cover, and lubricating grease is stored in the oil storage cavity. The oil storage cavity provides oil to the lubricating bearing. The dustproof oil seal is secondary seal constructed on the basis of the dustproof cover, the problem that when the dustproof cover may crack under actual working conditions, external impurities enter a gas pressure cavity of a cylinder body is solved, so that the seal effect between the cylinder body and the piston is improved, andthe performance stability of an assembly is improved.

Description

technical field [0001] The invention belongs to the technical field of clutch boosters, in particular to an integrated piston-enclosed plunger-type internal breathing clutch booster. Background technique [0002] figure 1 It is a cross-sectional view showing the cross-sectional structure of a hydraulic clutch booster in the prior art. Such as figure 1 As shown, a clutch booster based on the prior art includes a cylinder block 10a and a hydraulic piston 20a and a pneumatic booster piston 30a that perform piston movement in the cylinder block 10a. 11a inputs pressure oil to the hydraulic chamber 12a, and the oil pressure acts on the hydraulic piston 20a, causing the hydraulic piston 20a to generate thrust and move to the side of the air booster piston 30a, and the hydraulic pressure in the hydraulic chamber 12a acts on the control piston 13a at the same time, making it move toward The direction of the exhaust port 14a moves and the exhaust port 14a and the exhaust valve are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/04F16J15/3232F16J15/52F16J15/3252F15B15/14F16C25/02F16N1/00
CPCF15B15/14F16C25/02F16D48/04F16J15/3232F16J15/3252F16J15/52F16N1/00
Inventor 蒋伟荣叶飞陈万松岳李雪林荣斌
Owner RUILI GROUP RUIAN AUTO PARTS CO LTD
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