Clutch drive with radially nested seals, (double) clutch with clutch drive and drive train

A sealing device and active device technology, applied in clutches, fluid-driven clutches, non-mechanical drive clutches, etc., can solve the problems of harsh noise, high noise radiation, system leaks, etc., achieve small volume absorption, and improve service life Effect

CN108026985BInactive Publication Date: 2020-08-07SCHAEFFLER TECH AG & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-08-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a clutch drive (1) for a clutch of a motor vehicle, having a piston (5) mountable on a mechanical adjustment element (2), said piston being at least axially movable in a housing (6) is supported to move back and forth, wherein the piston (5) adjoins a high pressure chamber (7) that changes size during movement, wherein between the piston (5) and the housing ( 6) There are two seals (10) in between, one of which acts as a primary seal (11) fluid-tightly sealing the high-pressure chamber (7) prepared to receive hydraulic fluid, wherein , one sealing device (10) is arranged radially inside the other sealing device (10). The invention also relates to a clutch having such a clutch drive (1).
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Description

technical field

[0001] The invention relates to a clutch active device for a (double / single) clutch of a motor vehicle, such as a (double / single) clutch for a passenger car, a truck or other commercial vehicles, the clutch active device has a A piston on a type adjusting element, said piston being supported in a housing movable at least axially in a reciprocating manner, wherein the piston adjoins a high-pressure chamber which changes in size during movement, wherein between the piston and the housing There are also two seals, preferably independent of each other, in between, one of which as primary seal fluid-tightly seals the high-pressure chamber prepared to receive hydraulic fluid. Background technique

[0002] Various hydraulic clutch master cylinders (CMC; ClutchMaster Cylinder) are known from the prior art for conventional release systems. The present invention is in this field. The invention lies notably in the subfield of sealing arrangements.

[0003] According ...

Examples

Embodiment Construction

[0046] The drawings are partly of a schematic nature and are only used for the understanding of the invention. The figures relate to a longitudinal section, ie a section which extends along a longitudinal axis through the clutch drive, in particular along a rotational axis through the piston. Identical elements are provided with the same reference numerals. The features of the individual exemplary embodiments can also be combined with one another. That is, they can be interchanged with each other.

[0047] exist figure 1 shows an active clutch device 1 according to the invention. The clutch drive 1 is installed in a single clutch or a double clutch. The active clutch device is intended to be installed in a motor vehicle, such as a passenger car, a truck or other commercial vehicles. The clutch drive 1 is mechanically connected to an adjusting element 2 (eg lever 3 ). The rod 3 is surrounded by a bellows 4 . Rod 3 is connected to piston 5 . Piston 5 is mounted axially m...