Hydraulic actuator for automobiles

Details Hydraulic actuator for automobiles Hydraulic actuator for automobiles

1987-06-25

1989-03-21

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Electrical input and feedback signal means

91459, 91462, F15B 1316

Patent

active

048133353

ABSTRACT:
A hydraulic actuator for automobiles includes a hydraulic actuator body composed of a hydraulic cylinder and a plurality of solenoid valves, and an electric control circuit disposed adjacent to the hydraulic actuator body for controlling the operation of the solenoid valves. The electric control circuit operates upon receipt of an execution signal, an analog desired-position signal, and an actual-position signal delivered from a position sensor. The hydraulic actuator thus constructed has an improved degree of compatibility.

REFERENCES:
patent: 3768375 (1973-10-01), Flaschar et al.
patent: 3865218 (1975-02-01), Jones
patent: 3911677 (1975-10-01), Collins
patent: 4499756 (1985-02-01), Medeiros et al.
patent: 4587883 (1986-05-01), Ehrentraut et al.
patent: 4595979 (1986-06-01), Arai et al.

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