Hydraulic circuit controlling an actuator

Details Hydraulic circuit controlling an actuator Hydraulic circuit controlling an actuator

1995-10-06

1997-10-28

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Condition responsive control of motive fluid flow

60494, 91446, 91448, 91432, F16D 3102, F15B 1108

Patent

active

056807627

ABSTRACT:
An hydraulic circuit controlling an actuator including a main signal branch which includes a pump (11), a valve (12) and an actuator (18) coupled in series, the valve being responsive to first and second applied biasing pressures (19,23), the first biasing pressure being operable to bias the valve (12) into a closed position and the second biasing pressure being operable to bias the valve into an open position; an auxiliary branch (20,21,22) connected in parallel with the actuator (18); the first biasing pressure (19) being derived from the main signal branch downstream of the valve (12) and the second biasing pressure being derived from the auxiliary branch.

REFERENCES:
patent: 3999386 (1976-12-01), Crull et al.
patent: 4204460 (1980-05-01), Andersen et al.
patent: 5088283 (1992-02-01), Bosniac
patent: 5209063 (1993-05-01), Shirai et al.
patent: 5440967 (1995-08-01), Wennerbo
patent: 5460001 (1995-10-01), Kato et al.
patent: 5490442 (1996-02-01), Rub et al.

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