Hydraulic valves with dual feedback control

Details Hydraulic valves with dual feedback control Hydraulic valves with dual feedback control

1985-03-14

1987-01-13

Garrett, Robert E.

Fluid handling

Systems

Multi-way valve unit

13762563, F15B 1102

Patent

active

046356827

ABSTRACT:
In a hydraulic valve with flow feedback there is provided a position sensor (13) to sense the position of the flow-controlling valve member and provide a position feedback signal. The flow and position feedback signals are compared and a switching circuit (143) selects whichever of the signals indicates the larger flow.

REFERENCES:
patent: 2929362 (1960-03-01), Hayner
patent: 3699989 (1972-10-01), O'Connor et al.
patent: 3752189 (1973-08-01), Marr et al.
patent: 3874269 (1975-04-01), Walters
patent: 4031813 (1977-06-01), Walters et al.
patent: 4164167 (1979-08-01), Imai et al.
patent: 4266572 (1981-05-01), Schuttenberg et al.
patent: 4335867 (1982-06-01), Bihlmaier
patent: 4381699 (1983-05-01), Haussler
patent: 4456031 (1984-06-01), Taplin

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