Pressurized fluid mechanism with two cubic capacities and closed

Details Pressurized fluid mechanism with two cubic capacities and closed Pressurized fluid mechanism with two cubic capacities and closed

1989-10-16

1991-03-26

Capossela, Ronald C.

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

With means for selectively changing the speed or force...

60420, 60427, 60483, F15B 1309

Patent

active

050019643

ABSTRACT:
The present invention relates to a hydraulic motor capable of presenting two active cubic capacities of different values, as described in FR-A-2 481 755, and comprising in particular a shuttle valve presenting an inner conduit, wherein a bleeding conduit is arranged in the member for selecting the cubic capacity and communicates with the inner conduit of the shuttle valve, which it connects to an evacuation, while a calibrated restriction is disposed in the bleeding conduit. One application is the production of refrigeration of the hydaulic fluid for supplying this mechanism in closed circuit.

REFERENCES:
patent: 3266436 (1966-08-01), Yarger
patent: 4121501 (1978-10-01), Finley
patent: 4293000 (1981-10-01), Budzich
patent: 4807519 (1989-02-01), Wusthof et al.

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