Fluid couplings

Details Fluid couplings Fluid couplings

1976-07-27

1977-12-13

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, F16D 3500, F16D 4325

Patent

active

040624323

ABSTRACT:
A valve for controlling flow of viscous fluid from a reservoir through a valve seat in a wall to a working chamber of a fluid coupling. Presence of fluid in the working chamber permits the drive to transmit torque in response to a single input variable, such as temperature. The valve comprises a valve arm pivotally mounted to the reservoir side of the wall and a closure member positioned on the working chamber side of the wall. The valve is biased to a position preventing flow except when a bimetallic temperature responsive element displaces the valve to an open position. The valve arm is shaped so that centrifugal force acting on it counteracts the centrifugal pressure force on the fluid in a direction opening the valve. The valve therefore is rendered insensitive to all variables except temperature.

REFERENCES:
patent: 3262528 (1966-07-01), Weir
patent: 3893555 (1975-07-01), Elmer
patent: 3907084 (1975-09-01), Hall

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