192 clutches and power-stop control – Clutches – Progressive engagement
Patent
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
Bonck Rodney H.
Kabushiki Kaisha Daikin Seisakusho
Merek James J.
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