Hydraulically actuatable device for disengaging a gearshift clut

Details Hydraulically actuatable device for disengaging a gearshift clut Hydraulically actuatable device for disengaging a gearshift clut

1995-03-17

1996-08-20

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Operators

192 91A, 192 98, F16D 2314, F16D 2506

Patent

active

055470580

ABSTRACT:
A hydraulically actuatable device (1) for disengaging a gearshift clutch of an automotive vehicle, having an annular piston (4) arranged for sliding displacement with its inner peripheral surface (9) on a guide sleeve (6) and its outer peripheral surface (13) in a clutch output cylinder (2), a release bearing (5) positionally fixed by a disc spring (20) being lodged in an end of the annular piston (4) away from a pressure chamber (8), characterized in that, there is arranged on end of the annular piston (4) a fixing ring (12) comprising a cylindrical portion (14) which engages around a part of the outer peripheral surface (13) of the annular piston (4) to which it is fixed by positive engagement, and a radially inwards oriented arm (17) of an inner ring (16) of the release bearing (5) engages into a portion (15,45) of the fixing ring (12) having a U- or L-shaped cross-section and extending beyond end of the annular piston (4), arm (17) of the inner ring (16) being urged by the disc spring (20) supported on a first annular radial portion (21) of the fixing ring (12) against a second annular radial portion (22) thereof which bears against an end face of the annular piston (4).

REFERENCES:
patent: 4606449 (1986-08-01), Lederman
patent: 4637505 (1987-01-01), Huber
patent: 4938332 (1990-07-01), Thomas et al.
patent: 5287951 (1994-02-01), Voit et al.
Copy of Gebrauchsmuster, No. G 93 13 667.2, Sep. 8, 1993.

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