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slave cylinder

A technology for axial movement and separation of bearings, applied in the direction of fluid-driven clutches, non-mechanical-driven clutches, clutches, etc., which can solve problems such as damage, infeasible mobility, and wear and tear of the protective cover.

Active Publication Date: 2017-03-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The known solution has the disadvantage that, on the one hand, movement in the circumferential direction is not possible by clamping the ends of the protective hood, which could lead to straining of the protective hood and thus premature wear or loss of function
Another disadvantage is that the insertion of the protective cover into the fastening ring and the subsequent clamping also require additional assembly steps here

Method used

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Experimental program
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Embodiment Construction

[0023] exist figure 1 The slave cylinder shown in partial section in FIG. 2 has a hollow cylindrical housing 1 which forms a double wall in the interior. The annular piston 2 is arranged axially movable in an intermediate space between the inner and outer cylinder walls of the housing 1 , in which space a pressure chamber 3 is formed during the movement of the piston 2 . The inner wall of the housing 1 can also be formed by a guide sleeve along which the annular piston 2 is guided. The end of the piston 2 opposite the pressure chamber 3 is connected to a release bearing 4 . A prestressed energy store 5 surrounding the piston 2 , for example a helical compression spring, is supported on said release bearing. In order to seal the running surface or guide surface of the piston 2 against dirt, the piston and the energy store 5 are enclosed by means of a protective cover 6 . Here, one end 6.1 of the protective cap 6 is fastened to the housing 1 and the other end 6.2 of the prote...

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PUM

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Abstract

The application relates to a slave cylinder having a housing ( 1 ) arranged concentrically around a transmission input shaft and an annular piston ( 2 ) movable axially therein, which is in active contact with a release bearing ( 4 ). connect. The release bearing is axially preloaded by means of an accumulator ( 5 ) which is supported on the housing and surrounds the piston. In this case, the energy store is surrounded by a protective cover ( 6 ), which is accommodated with its one end ( 6.1 ) on the housing and with its end ( 6.2 ) on the release bearing side by means of a connection to the release bearing Ring (7) accommodates. According to the invention, the end ( 6 . 2 ) of the protective cover ( 6 ) on the release bearing side can be clamped into the retaining ring ( 7 ) by means of the axial movement of the piston.

Description

technical field [0001] The invention relates to a slave cylinder for a clutch or brake system of a motor vehicle according to the preamble of the first claim. Background technique [0002] Such a concentric slave cylinder ("concentic slave cylinder"—CSC) or central separator is used in hydraulic clutch systems in the functional chain between clutch pedal and clutch. The slave cylinder has a housing designed as an annular cylinder which is arranged around the clutch input shaft or the transmission input shaft. An annular piston movable in the axial direction is guided in the housing, said annular piston carrying a release bearing supported on the clutch. An energy store, for example in the form of a helical compression spring, surrounds the piston. When the piston is hydraulically loaded via the pressure line, the preloaded energy store acts on the release bearing, whereby the clutch is actuated. To prevent contamination, or as a seal for the annular piston, an elastic pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D25/08
CPCF16D25/083F16D2300/08
Inventor 亚历山大·舍韦萨拉瓦南·拉克希米纳拉亚南
Owner SCHAEFFLER TECH AG & CO KG