192 clutches and power-stop control – Clutches – Fluent material
Patent
1983-12-27
1986-05-27
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, 25112915, F16D 3500, F16D 4325
Patent
active
045910375
ABSTRACT:
A viscous fan clutch (10) is typically employed in a fan drive mechanism within a truck or automobile. A shaft (12) driven by the engine, rotates a clutch member (24) within the fan drive. The clutch member is arranged for fluid engagement with a body member (42) for the transmission of torque thereto when the fluid is disposed in an operating chamber (70) defined by complimentary shear surfaces (30 and 56) in the clutch and body members. During relative rotation between the two members, fluid is pumped from the operating chamber to a storage chamber (76) through a return passage (111). Fluid is returned to the operating chamber via bleed ports (118). The return passage and bleed ports are selectively restricted by an electromagnetically controlled valve (112) which taps the kinetic energy of the rotating members. A control system (132) senses vehicle coolant temperature and actuates the valve as a function thereof.
REFERENCES:
patent: 2658400 (1953-11-01), Dodge
patent: 2974768 (1961-03-01), Hause
patent: 3559786 (1971-02-01), Long
patent: 3968866 (1976-07-01), Leichliter et al.
patent: 3972399 (1976-08-01), Bopp
patent: 4056178 (1977-11-01), Detty
patent: 4064980 (1977-12-01), Tinholt
patent: 4346797 (1982-08-01), Bopp
patent: 4362226 (1982-12-01), Gee
patent: 4458798 (1984-07-01), Bopp
Bonck Rodney H.
Eaton Corporation
Grace C. H.
Lewis J. G.
Towner Alan G.
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