In particular, a clutch disengagement mechanism with a fluid actuator for pulling the coupling piece of the clutch

摘要

PCT No. PCT/FR93/01220 Sec. 371 Date Sep. 16, 1994 Sec. 102(e) Date Sep. 16, 1994 PCT Filed Dec. 9, 1993 PCT Pub. No. WO94/13972 PCT Pub. Date Jun. 23, 1994A declutching mechanism having firstly, a hydraulic actuator comprising at least one fixed member and a movable member defining a first control chamber, and secondly, a clutch release bearing attached to the movable member and manoeuvrable by the latter in a first axial direction, referred to as the declutching direction, in order to transmit a declutching force to a connecting piece. The actuator includes a second control chamber which is independent of the first control chamber, and which is delimited at least partly by the fixed member and the movable member for the manoeuvre of the movable member in the opposite direction.