Control system for a fluid pressure operated actuator arrangemen

Details Control system for a fluid pressure operated actuator arrangemen Control system for a fluid pressure operated actuator arrangemen

1977-06-15

1979-05-22

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Electrical input and feedback signal means

91365, 91461, 91510, 91534, F15B 903, F15B 909, F15B 1116, F15B 1306

Patent

active

041552881

ABSTRACT:
A control system for a fluid powered actuator arrangement which includes two drivingly interconnected hydraulic actuator devices, comprises two control valves which are movable in unison to apply operating pressure to the respective devices. The control valves being reponsive to four electro-hydraulic pilot valves, each of which is controlled by four nominally identical electrical input signals. The control system includes means for monitoring the electrical input signals and the operating pressures, and for isolating or rendering inoperative parts of the system in response to several combinations of malfunction indication.

REFERENCES:
patent: 3540350 (1970-11-01), Heine
patent: 3554084 (1971-01-01), Rasmussen
patent: 3826174 (1974-07-01), Platt

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