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slave cylinder

A friction clutch, hydraulic technology, used in engine components, engine seals, fluid-driven clutches, etc., can solve problems such as piston stuck, system failure, tearing, etc.

Active Publication Date: 2015-08-19
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Swelling and softening of the seal and thus impairment of function when other media are used or ingress of foreign bodies (oil, grease and the like)
Failure of the system during further operation, often due to stuck pistons or torn seals, which in turn leads to leaks

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A partial partial sectional view of a slave cylinder 1 is shown. The slave cylinder comprises a slave cylinder housing 2 having an elongated bore 3 with a substantially cylindrical inner face, and a guide with a likewise cylindrical outer face 6 Sleeve 5. An annular space 7 is enclosed between the inner surface 4 of the slave cylinder housing 2 and the outer surface 6 of the guide sleeve 5 , in which an annular piston 8 is arranged. The annular piston 8 includes a piston head 9 and a seal 10 . The sealing device 10 encloses a pressure chamber 11 together with the slave cylinder housing 2 and the guide sleeve 5 . The slave cylinder is arranged concentrically around a transmission input shaft at figure 1 is shown only schematically with the aid of the axis of rotation 12 of the transmission input shaft. exist figure 1 In , the radial direction is indicated by a double arrow R, and the axial direction is indicated by a double arrow A. The circumferential...

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Abstract

For a slave cylinder for a hydraulic disengaging system of a friction clutch of vehicles, wherein the slave cylinder has a slave cylinder housing, which is arranged concentrically with a transmission input shaft, wherein a guide sleeve is arranged in a longitudinal bore of the slave cylinder housing at a radial distance in order to form a pressure chamber having the shape of a circular ring and wherein an annular piston is guided in the pressure chamber in an axially movable manner, which annular piston is provided with a seal on the pressure chamber side, failures or functional impairments due to swelling seals are reduced in that a limiting means that limits the swelling of the seal in the axial direction is arranged on the pressure chamber side of the seal.

Description

technical field [0001] The invention relates to a slave cylinder for a hydraulic release system of a friction clutch of a vehicle, wherein the slave cylinder has a slave cylinder housing which is arranged concentrically with respect to the transmission input shaft , wherein a guide sleeve is arranged radially at a distance in the elongated hole of the slave cylinder housing to form an annular pressure chamber and an annular piston is guided axially slidably in said pressure chamber , the annular piston is provided with a sealing device on the side of the pressure chamber. Background technique [0002] A slave cylinder of this type is known, for example, from DE 19681324 A1. Such a slave cylinder belongs to a hydraulic clutch release system, wherein the slave cylinder is actuated by actuating the master cylinder, for example by means of a clutch pedal. The master cylinder and the slave cylinder are connected to each other via hydraulic pressure lines. The ring piston of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D25/08
CPCF16J15/3216F16D25/083F16D2300/08
Inventor T·拉姆霍费尔B·阿尔特梅彭
Owner SCHAEFFLER TECH AG & CO KG
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