192 clutches and power-stop control – Clutches – Fluent material
Patent
1989-12-29
1991-02-26
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, F16D 3500
Patent
active
049954946
ABSTRACT:
A viscous fluid fan clutch assembly for a vehicle includes an internally-mounted pump plate for separating a working chamber from a reservoir. A plurality of pressure-sensitive fluid check valves are provided in the pump plate to permit only one-way fluid flow from a pumping chamber to the reservoir. Each check valve includes an interior chamber having a pair of angled side walls which terminate at a normally-closed outlet. When a predetermined fluid pressure is achieved in the pumping chamber, the side walls are forced apart to open the outlet. The closing of the outlet is not dependent upon fluid pressure in the reservoir.
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Huth Ronald G.
Kennedy Lawrence C.
Bonck Rodney H.
General Motors Corporation
Tucker A. Michael
Whitelaw Nicholas
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