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Follower with loosely sealed clutch master cylinder in park position

A technology for clutches and active parts, which can be used in clutches, engine seals, fluid-driven clutches, etc., and can solve problems such as low cost

Inactive Publication Date: 2021-05-25
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

while keeping costs low

Method used

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  • Follower with loosely sealed clutch master cylinder in park position
  • Follower with loosely sealed clutch master cylinder in park position
  • Follower with loosely sealed clutch master cylinder in park position

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] exist figure 1 A clutch active element 1 according to the invention is shown in . The clutch drive 1 is used in a clutch system of a motor vehicle, ie a passenger car or a van or another commercial vehicle.

[0027] The clutch drive 1 has a housing 2 in the form of a cylinder. Piston 3 is arranged inside the housing. Piston 3 is mounted axially movably within housing 2 and is fixedly connected to piston rod 4 . Arranged between the housing 2 and the piston 3 is a primary seal 5 on the one hand and a secondary seal 6 on the other hand.

[0028] A primary seal 5 is present on the side of the high pressure chamber 7 and a secondary seal 6 is present on the side of the piston rod 4 . A low-pressure chamber 8 is formed between the primary seal 5 and the secondary seal 6 . The piston rod 4 is displaceable along the arrow 9 , ie in the axial direction. That is, the piston also moves in the direction of movement 9 . The axial direction is indicated by arrow 10 and the ra...

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Abstract

The invention relates to a clutch drive for a clutch system of a motor vehicle, having a housing in which a piston connectable to a piston rod is arranged in an axially movable manner and having a primary seal which is in a first position The high-pressure chamber between the piston and the housing is fluid-tightly separated from the low-pressure chamber between the piston and the housing, wherein the primary seal coordinates the housing and / or the piston with each other such that at the first A fluid exchange between the high-pressure chamber and the low-pressure chamber can be achieved next to the primary seal in a second position, wherein in the second position the primary seal coordinates the housing and / or the piston in such a way that the primary seal is radially Preload less than in the first position.

Description

technical field [0001] The invention relates to a clutch drive for a clutch system. However, it can also be used precisely in the active brake part of the brake system. In this case the term "clutch" is replaced by "brake". Such clutch drives are used in motor vehicles, for example in passenger cars, vans or other commercial vehicles. Such a clutch drive has a housing, for example in the form of a cylinder, in which a piston is arranged axially movable and connectable to a piston rod. Furthermore, a primary seal is contained which, in the second position, separates the high-pressure chamber between the piston and the housing in a fluid-tight manner from the low-pressure chamber between the piston and the housing. The primary seal, the housing and / or the piston are coordinated with one another in such a way that, in the second position of the primary seal, a fluid exchange between the high-pressure chamber and the low-pressure chamber is possible next to the primary seal. F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D25/12F16J15/3232F16J15/3284
CPCF15B7/08F16D25/12F16J15/32F15B15/1452F16D25/08F16D2025/081F16D2048/0212F16D2300/08
Inventor T·拉姆霍费尔
Owner SCHAEFFLER TECH AG & CO KG
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