Clutch master unit with high-pressure chamber in the piston, (DUAL) clutch with clutch master unit, and drivetrain

A technology of active devices and clutches, applied in the direction of hydraulic brake transmissions, clutches, brake transmissions, etc., can solve problems such as harsh noise, high noise radiation, and shortcomings in media compatibility, and achieve the effect of avoiding leakage

CN108026984AActive Publication Date: 2018-05-11SCHAEFFLER TECH AG & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-05-11

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Abstract

The invention relates to a clutch master unit (1) for a clutch of a motor vehicle, having a piston (5) which can be attached to a mechanical control element (2), which piston is mounted so as to be atleast axially movable in a housing (6) in reciprocating fashion, wherein the piston (5) adjoins a high-pressure chamber (7) which is varied in size during said movement, wherein, between the piston (5) and the housing (6), there are provided two seals (10), of which one, as a primary seal (11), seals off in fluid-tight fashion the high-pressure chamber (7) which is prepared for accommodating hydraulic fluid, wherein the high-pressure chamber (6) is formed ( / arranged / defined) within the piston (5). The invention also relates to a clutch having a clutch master unit (1) of said type.
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Description

technical field

[0001] The invention relates to a clutch drive device for a (double / single) clutch for motor vehicles, for example for passenger cars, trucks or other commercial vehicles (double / single) clutch device, said clutch drive device has a mechanical A piston on a type adjusting element, which is mounted in a housing so as to be able to move back and forth at least axially, wherein the piston abuts on a high-pressure chamber that changes size during movement, wherein the piston and the housing are in contact with each other. There are also two sealing devices preferably independent of each other, one of which as the primary sealing device fluid-tightly seals the high-pressure chamber provided for receiving hydraulic fluid. Background technique

[0002] Different hydraulic clutch master cylinders (CMC; ClutchMaster Cylinder) for conventional decoupling systems are known from the prior art. The present invention is in this field. The invention lies in particular in ...

Examples

Embodiment Construction

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

[0047] exist figure 1 A clutch drive 1 according to the invention is shown in . The clutch drive 1 is installed in a single clutch or a double clutch. The clutch active device is intended for installation in motor vehicles, such as passenger cars, trucks or other commercial vehicles. The clutch drive 1 is mechanically connected to an adjusting element 2 (eg a lever 3 ). Rod 3 is surrounded by bellows 4 . Rod 3 is connected to piston 5 . The piston 5 is mounted in the housing 6 such...