Declutching device having an hydraulic actuator, especially for

Details Declutching device having an hydraulic actuator, especially for Declutching device having an hydraulic actuator, especially for

1994-01-28

1995-12-12

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192 85C, 192 98, 192110B, F16D 2508, F16D 2512

Patent

active

054741653

ABSTRACT:
A declutching device, especially for a motor vehicle clutch of the pull-off type, comprises an hydraulic actuator. The latter comprises a fixed member and a movable member in piston and cylinder relationship, defining a control chamber between them, together with preloading force for biassing the movable member of the hydraulic actuator permanently towards one of its end positions with respect to the fixed member of the actuator. The supply of hydraulic fluid to the control chamber is under the control of a valve, which is for example incorporated in a boss which is part of the fixed member of the hydraulic actuator. The valve has a movable valve member which is in communication with the control chamber on one side, and which is biassed by a spring on the opposite side of the valve member.

REFERENCES:
patent: 4456111 (1984-06-01), Limbacher
patent: 4609087 (1986-09-01), Shirley
patent: 4915202 (1990-04-01), Leigh-Monstevens et al.

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