Hydraulic clutch

Details Hydraulic clutch Hydraulic clutch

1982-04-26

1984-04-17

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Progressive engagement

192 85AA, 192109F, 188366, 188 724, 91401, F16D 2506

Patent

active

044429290

ABSTRACT:
The present invention discloses a hydraulic clutch comprising friction plates; a hydraulic piston for pressing the friction plates; a pair of annular protrusions respectively formed at radially outer portion and relatively inner portion of the piston with an annular space therebetween, said protrusions being designed to press the adjacent friction plate; an oil passage formed in the piston through which the annular space is connected to a pressure chamber at the back of the piston; a check valve arranged in the oil passage, said valve including a ball forced to close toward the friction plates and partially projecting beyond the protrusions toward the friction plates; an accumulation chamber formed in the piston and connected to the annular space; and a drain means connected to a space in which the friction plates are arranged.

REFERENCES:
patent: 3602347 (1971-08-01), Yamaguchi et al.
patent: 3647037 (1972-03-01), Toma
patent: 3974743 (1976-08-01), Ivey
patent: 4325471 (1982-04-01), Schuster

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