Aeronautics and astronautics – Aircraft control – Automatic
Patent
1990-03-16
1991-12-24
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
Automatic
244226, 60403, 60430, B64C 340
Patent
active
050744950
ABSTRACT:
An actuator system for a control surface of an aircraft having a hydraulic system and a source of actuation system commands. The actuator system includes hydraulic circuits connected to the aircraft hydraulic system and an electrically-powered hydraulic circuit integrated with the actuator. The electrically-powered hydraulic circuit includes an electric motor connected to a hydraulic fluid pump. The pump can be controlled to adapt to the power requirements to actuate the control surface.
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Galy, "Airbus Hydraulic Power Always Available", Hydraulics & Pneumatics, Dec. 1972, pp. 57-60.
Barefoot Galen L.
The Boeing Company
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