Electro fluidic actuator

Details Electro fluidic actuator Electro fluidic actuator

1980-04-21

1983-07-05

Chambers, A. Michael

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

367171, 367172, 181120, G01V 104

Patent

active

043912990

ABSTRACT:
An electro-hydraulic (EH) actuator for converting electrical inputs into hydraulic output signals is described. The actuator features a pressure balanced design which permits operation at high absolute pressures without performance degradation. Internal portions of the EH actuator are filled with a non-conducting fluid, while a flexible diaphragm provides a movable interface between the fluid and the environment in order to equalize the internal and external pressures on the actuator.

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patent: 4323991 (1982-04-01), Holmes et al.
A Fluidic Approach to the Design of a Mud Pulser for Bore-Hole Telemetry le Drilling, Holmes, Allen B., Harry Diamond Lab-TM-79-21, 1979.

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