Electro Fluidic Actuator.

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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. Author

Author(s):
Holmes, Allen B.
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent Application,
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Availability: This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-142 547
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Patent applications, *Telemetering transmitters, *Pulse generators, *Hydraulic actuators, Electrical properties, Internal pressure, Performance(Engineering), Flexible structures, Diaphragms(Mechanics), High pressure, Signals, Mobile, Output, Degradation, Fluids, External, Interfaces, Actuators
Field(s)/Group(s):
Fluidics and Fluerics, Electricity and Magnetism, Telemetry
Keyword(s):
Drill strings, NCD(Nonconducting Fluids), Well heads, Electrofluidic actuators, Mud turbines, Actuators(Electrofluidic), MPT(Mud Pulse Telemetry), EH(Electrohydraulics), Wells(General)
Report Date:
1980 Apr 10