Electrohydraulic proportional actuator apparatus

Details Electrohydraulic proportional actuator apparatus Electrohydraulic proportional actuator apparatus

1977-07-18

1979-12-11

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376A, 13759617, 13762524, F15B 910

Patent

active

041777131

ABSTRACT:
An electrohydraulic proportional actuator for converting an electrical input signal to proportional mechanical output. Fluid power may be derived from pressurized fuel or lubricating oil of an associated engine. The actuator may be used to drive any engine function requiring modulated control. The mechanical output is proportional to the electrical input. The actuator includes mechanical feedback to linearize the response function, thus eliminating the need for closed loop operation of the system in which the actuator is used. Both linear and rotary actuators are disclosed in various embodiments. Each type is capable of operation with either a proportional solenoid and valve or a force rebalance solenoid and valve.

REFERENCES:
patent: 2613649 (1952-10-01), Diebel
patent: 3185439 (1965-05-01), Inaba et al.
patent: 3707167 (1972-12-01), Colletti
patent: 3750532 (1973-08-01), Kubilos
patent: 3858484 (1975-01-01), Saida

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