Quick pump-out clutch plate for a viscous fluid clutch

Details Quick pump-out clutch plate for a viscous fluid clutch Quick pump-out clutch plate 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

049249843

ABSTRACT:
A fan clutch assembly for a vehicle includes a clutch plate rotatably driven by an input shaft. The clutch plate includes a plurality of concentric, annular lands and grooves which are mated with complementary lands and grooves of a clutch body to form a shear zone. A plurality of passages are provided in the clutch plate lands and grooves for directing fluid from a reservoir to the shear zone. A plurality of radial channels are provided in the clutch plate lands and grooves to expel fluid from the shear zone to a receiving chamber of the clutch plate assembly. Each channel is aligned with and leads radially outwardly from a respective passage. Preferably, each groove includes an aligned notch provided on the circumference of the clutch plate. The notch includes a mouth on the surface of the clutch plate adjacent the lands and grooves and an exit on the surface of the clutch plate adjacent a receiving chamber. An angled wall provided with each notch fluid from a channel to the receiving chamber of the clutch plate assembly.

REFERENCES:
patent: 3272293 (1966-09-01), Heater
patent: 3575269 (1971-04-01), Sherman
patent: 3809197 (1974-05-01), Clancey
patent: 3899059 (1975-08-01), Leichliter
patent: 4004668 (1977-01-01), Blair
patent: 4190139 (1980-02-01), Tinholt et al.
patent: 4235322 (1980-11-01), Sutaruk
patent: 4238015 (1980-12-01), Schmida
patent: 4281750 (1981-08-01), Clancey

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