Power transmission

Details Power transmission Power transmission

1980-05-29

1982-10-12

Nilson, Robert G.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91455, 91461, F15B 1104

Patent

active

043532896

ABSTRACT:
A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, a pump for supplying fluid to said actuator, pilot operated meter-in valve means to which the fluid from the pump is supplied for controlling the direction of movement of the actuator, pilot operated meter-out valve means associated with each opening of the actuator for controlling the flow out of said actuator,

REFERENCES:
patent: 4201052 (1980-05-01), Breeden
patent: 4250794 (1981-02-01), Haak

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