Electro-hydraulic actuator

Details Electro-hydraulic actuator Electro-hydraulic actuator

1994-10-05

1996-09-10

Hepperle, Stephen M.

Valves and valve actuation

Electrically actuated valve

25112906, F16K 3102

Patent

active

055538282

ABSTRACT:
The invention relates to an electro-hydraulic actuator, especially for an antilock brake system, which directly converts electrical input energy into hydraulic useful energy and has an especially simple and problem-free design as well as very rapid adjustability. A working chamber of the actuator according to the invention is filled with an electrostrictive fluid and provided with an electrically controlled electrode system to generate an electrical field that causes a change in pressure and/or volume in the electrostrictive fluid.

REFERENCES:
patent: 4043532 (1977-08-01), Draxler
patent: 4114645 (1978-09-01), Pauliukonis
patent: 5222713 (1993-06-01), Lawless et al.
patent: 5238223 (1993-08-01), Mettner et al.
patent: 5419133 (1995-05-01), Schneider

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