Pump plate assembly for a viscous fluid clutch

Details Pump plate assembly for a viscous fluid clutch Pump plate assembly for a viscous fluid clutch

1989-05-22

1990-05-15

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, F16D 3312

Patent

active

049249878

ABSTRACT:
A fan clutch assembly for a vehicle includes a pump plate assembly for separating a receiving chamber from a reservoir, wherein the receiving chamber receives fluid from a shear zone. The pump plate assembly includes an orifice for permitting the passage of fluid from the receiving chamber to the reservoir. A check valve is provided at the orifice to control the flow of fluid and permit only one-way flow from the receiving chamber into the reservoir. The check valve eliminates the migration of fluid through the orifice from the reservoir into the receiving chamber.

REFERENCES:
patent: 3174600 (1965-03-01), Oldberg
patent: 3323623 (1967-06-01), Roper
patent: 3339689 (1967-09-01), Sutaruk
patent: 3419122 (1968-12-01), Connelly
patent: 3490686 (1970-01-01), Weir
patent: 4190139 (1980-02-01), Tinholt et al.
patent: 4271946 (1981-06-01), Bridge
patent: 4312433 (1982-01-01), Bopp
patent: 4531621 (1985-01-01), Hazel
patent: 4544053 (1985-10-01), Yamaguchi et al.
patent: 4564094 (1986-01-01), Storz
patent: 4570771 (1986-02-01), Yamaguchi et al.
patent: 4606445 (1986-08-01), Rockey

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