Valve apparatus for prevention of shocking torque in clutch mech

Details Valve apparatus for prevention of shocking torque in clutch mech Valve apparatus for prevention of shocking torque in clutch mech

1994-05-18

1995-06-27

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Thermal responsive

1375135, 251 11, F16K 3170

Patent

active

054271380

ABSTRACT:
A valve apparatus for prevention of a shocking torque in a clutch mechanism includes a housing having a chamber, the housing including an inlet port for being connected with the master cylinder and an outlet port for being connected with the release cylinder. A valve member is slidably disposed in the chamber to partition the chamber into a first chamber and a second member. The valve member includes a restricted passage connected to the first chamber and the second chamber when the valve member is closed. A first elastic member biases the valve member toward a closed position and a second elastic member biases the valve member in the counter direction of the biassing direction of the first elastic member. A wall member is disposed between the outlet port and the valve member for directing fluid flowing from the outlet port to the valve member. At least one of the first elastic member and the second elastic member is made of a shape memory so that the valve member is biassed by the first elastic member and the second elastic member so as to be opened when the temperature of a fluid flowing into the chamber is under a predetermined value and so that the valve member is biassed by the first elastic member and the second elastic member so as to be closed when the temperature of the fluid flowing into the chamber exceeds a value.

REFERENCES:
patent: 4171767 (1979-10-01), Sliger
patent: 4523605 (1985-06-01), Ohkata
patent: 4574834 (1986-03-01), Inoue
patent: 4973024 (1990-11-01), Homma

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