Electro-hydraulic proportional actuator

Details Electro-hydraulic proportional actuator Electro-hydraulic proportional actuator

1982-09-30

1989-02-28

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91415, 91464, F15B 910

Patent

active

048075175

ABSTRACT:
An electro-hydraulic proportional servoactuator is disclosed which has built-in fail-safe systems which cause the power turbine nozzles to return to a zero degree angular position in the event of either an electrical system failure or a hydraulic system failure, and features a toggling effect.

REFERENCES:
patent: 2414451 (1947-01-01), Christensen
patent: 2637341 (1953-05-01), Borst
patent: 2917026 (1959-12-01), Hall et al.
patent: 4044652 (1977-08-01), Lewis et al.

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