Hydraulic control system

Details Hydraulic control system Hydraulic control system

1981-11-19

1984-10-30

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60422, 60445, 60450, F16D 3302, F16H 3948

Patent

active

044793499

ABSTRACT:
A hydraulic control system for regulating the distribution of fluid from a variable displacement pump to a plurality of fluid actuated devices is disclosed. The control system includes at least first and second control valves, each of which valves regulates the flow of fluid to a fluid actuated device. Each of the first and second control valves includes, respectively, a first means for developing a first pressure signal and a second means for developing a second pressure signal. A selector means senses the first and second pressure signals and transmits a control pressure signal which is the smaller of the two pressure signals to a fluid actuated displacement control means which regulates the displacement of the pump in response to the magnitude of the control pressure signal.

REFERENCES:
patent: 2238061 (1941-04-01), Kendrick
patent: 3768928 (1973-10-01), Miller et al.
patent: 3878679 (1975-04-01), Sievenpiper
patent: 3908375 (1975-09-01), Young
patent: 4074528 (1978-02-01), Lourigan et al.
patent: 4197705 (1980-04-01), Westveer
patent: 4199942 (1980-04-01), Kasper
patent: 4335577 (1982-06-01), Lobmeyer et al.

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