Control system for a plurality of hydraulic actuators

Details Control system for a plurality of hydraulic actuators Control system for a plurality of hydraulic actuators

1982-12-21

1985-01-08

Garrett, Robert E.

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

Separate valve means actuatable by a common nonmanual...

91527, 91536, 91445, 91461, F15B 1116

Patent

active

044921489

ABSTRACT:
A control system for a plurality of hydraulic actuators which requires smaller number of control valves than that of actuators. In one embodiment, three control valves are arranged in parallel for controlling four hydraulic cylinders. The control valves are preferably solenoid-operated and one of control valves are used for supplying a pilot fluid pressure into a plurality of pilot-operated check valves disposed between the control valves and the hydraulic cylinders.

REFERENCES:
patent: 3854766 (1974-12-01), Jordan
patent: 3966066 (1976-06-01), Schexnayder
patent: 3996840 (1976-12-01), Futamata et al.
patent: 4201510 (1980-05-01), Muntjanoff
patent: 4244405 (1981-01-01), Zirker et al.
patent: 4341149 (1982-07-01), Dezelan

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