192 clutches and power-stop control – Clutches – Fluent material
Patent
1981-07-30
1984-09-04
Husar, Cornelius J.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, F16D 3500, F16D 4325
Patent
active
044692099
ABSTRACT:
A viscous fluid coupling device is comprised of a drive rotor having axially extending annular projections on opposite surfaces thereof, a casing surrounding said rotor and having axially extending annular projections interposed between the annular projections on one side of said rotor, a separator disc secured within said casing to divide the interior of said casing into a reservoir chamber and a working chamber, said disc having axially extending annular projections interposed with the annular projections on the other surface of said rotor and having first and second openings angularly offset from each other at different radial distances, a valve strip slidably engaging said disc for controlling the opening and closing of the openings under the control of a temperature responsive bimetallic coil. The valve strip will open the radially outer opening at a first temperature and subsequently open the radially inward opening at a second temperature greater than the first temperature to sequentially provide a viscous fluid to the two sets of interposed annular projections for driving a fan secured to the housing at two different speeds.
REFERENCES:
patent: 3463282 (1969-08-01), Fujita
patent: 3587801 (1971-06-01), Riner
patent: 3858697 (1975-01-01), Brewer et al.
patent: 3972399 (1976-08-01), Bopp
patent: 4298111 (1981-11-01), Hayashi
patent: 4351426 (1982-09-01), Bopp
Hayashi Masaharu
Kuga Ryoichi
Aisin Seiki Co., Ltd.
Fischetti Joseph A.
Husar Cornelius J.
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