192 clutches and power-stop control – Clutches – Fluent material
Patent
1979-03-26
1981-03-24
Staab, Lawrence J.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, F16D 3500
Patent
active
042575010
ABSTRACT:
A temperature responsive clutch which engages the radiator cooling fan of a motor vehicle engine when the engine temperature is sufficiently high. The clutch comprises a housing rotatably mounted on a shaft which is adapted to be attached to the fan mounting of the engine. The housing has means for mounting a fan and comprises front and rear housing plates attached together to form an enclosed chamber for holding a viscous fluid. A rear inner plate is fixedly attached to the shaft within the chamber. A front inner plate located within the chamber is slideably mounted on pins extending from the front housing plate to allow the front inner plate and the housing to rotate together and to allow the front inner plate to move axially. The legs of a U-shaped member extend through apertures formed through the front inner plate and are attached to the front housing plate. A spring carried within the U-shaped member engages the center portion of the front inner plate on its rear side for urging it away from the rear inner plate. A temperature responsive member supported by the front housing plate engages and moves the front inner plate toward and close to the rear inner plate when the temperature increases for causing the front inner plate and hence the housing and fan to be rotatably driven by the force of the viscous fluid between the front and rear inner plates.
REFERENCES:
patent: 2879755 (1959-03-01), Weir
patent: 3019875 (1962-02-01), Fowler
patent: 3580229 (1971-05-01), May
patent: 3739891 (1973-06-01), LaFlame
patent: 4036339 (1977-07-01), Kikuchi
Eaglemotive Industries, Inc.
Staab Lawrence J.
Wofford Wm. T.
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