192 clutches and power-stop control – Clutches – Progressive engagement
Patent
1982-02-05
1984-08-28
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Progressive engagement
192 58B, 192 82T, 192 85V, F16D 3500, F16D 4325
Patent
active
044679017
ABSTRACT:
A cooling fan device for use with an internal combustion engine in which there is provided a viscous fluid coupling operable to control the speed of rotation of a fan for cooling a radiator in response to variation in the temperature of the engine. A partition plate is provided in a fluid-tight chamber so as to divide the chamber into a working chamber and a reservoir chamber. The partition plate has two holes which allow fluid flow from the reservoir chamber to the working chamber. Two valves, one for each hole, are provided which are normally biased to close the holes. One of the valves is attached to a slidable plug which moves in response to temperature change; the other valve is positioned to be engaged by the first valve. Changeover valves control the movement of the plug by allowing suction air pressure or atmospheric air pressure to enter a diaphragm at one end of the plug as the engine temperature varies and thereby open or close the holes.
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Aoki Kongou
Hattori Kenji
Hayashi Masaharu
Aisin Seiki Kabushiki Kaisha
Bonck Rodney H.
House David D.
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