192 clutches and power-stop control – Clutches – Operators
Patent
1976-10-13
1978-06-20
Gerin, Leonard H.
192 clutches and power-stop control
Clutches
Operators
192103F, F16D 2310, F16D 4324
Patent
active
040956849
ABSTRACT:
A fluid operated clutch assemblage having axially aligned rotary input and output members, at least one axially movable disc carried by one member and at least one axially movable plate carried by the other member and an axially movable, hydraulically operated piston for causing engagement of the disc and the plate to couple the input and output members. The clutch includes a valve concentric with the input member and axially movable thereon and rotatable therewith. The valve is provided with a first pressure responsive surface and a second pressure responsive surface in bucking relation to the first pressure responsive surface. A spring biases the valve oppositely of the second pressure responsive surface and there is provided an annular, axially expandable chamber including the second pressure responsive surface rotatable with the input member. A conduit is provided for directing hydraulic fluid to the expandable chamber and a fluid conduit is utilized for directing hydraulic fluid through the input member to the piston. The valve includes a throttling port in the conduit and the first pressure responsive surface is in fluid communication with the conduit between the piston and the throttling port. As a consequence, the degree of coupling is dependent upon the rotational input rate and the amount of fluid in the expandable chamber with the valve serving as an amplifier in the system.
REFERENCES:
patent: 3421608 (1969-01-01), Van Gorder
patent: 3872956 (1975-03-01), Herr et al.
patent: 4006808 (1977-02-01), Starling et al.
Caterpillar Tractor Co.
Gerin Leonard H.
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