Hydraulic cylinder apparatus of the type actuated by booster

Details Hydraulic cylinder apparatus of the type actuated by booster Hydraulic cylinder apparatus of the type actuated by booster

1991-04-25

1992-06-30

Look, Edward K.

Power plants

Pressure fluid source and motor

Pulsator

60567, 60581, 60583, 92130B, B60T 1358

Patent

active

051252341

ABSTRACT:
In a hydraulic cylinder apparatus of a type actuated by a booster, a plunger chamber (39) of a booster (32) is connected in communication with an extension cylinder chamber (35) of a hydraulic cylinder (30). An annular oil make-up chamber (48) is disposed outside an outer peripheral surface of the cylinder chamber (35). The oil make-up chamber (48) is connected in communication with the plunger chamber (39) and an electromagnetically opened and closed type shutoff valve (49) is interposed between both said chambers (39) (48).

REFERENCES:
patent: 1230486 (1917-06-01), Jacomini
patent: 2075235 (1937-03-01), Sciaky
patent: 3426530 (1967-10-01), Georgelin
patent: 4103864 (1978-08-01), Hagendorn
patent: 4601457 (1986-07-01), Austin et al.
patent: 4702013 (1978-02-01), Barbareschi

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