Master cylinder apparatus

Details Master cylinder apparatus Master cylinder apparatus

1980-12-12

1982-05-25

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60589, B60T 1120

Patent

active

043309950

ABSTRACT:
A master cylinder apparatus of a type of wherein a master cylinder which is in communication through a connecting port with an oil reservoir on its upper side. A piston is provided having at its front and rear surfaces respective elastic cups, whereby the piston may be pushed to advance against the action of a spring on its front side by a push rod. The piston comprises a front main piston and a rear subsidiary piston connected thereto, and is further defined by an axially extending return port communicating between front and rear oil chambers and with a check valve interposed in the return port arranged to be closed by the action of a releasable spring supported by a stopper at the rear surface, during advance motion of the piston.

REFERENCES:
patent: 2060854 (1936-11-01), Carroll
patent: 2205806 (1940-06-01), Belenkij
patent: 3729932 (1973-05-01), Nakashima
patent: 4175392 (1979-11-01), Morimoto

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