Power plants – Pressure fluid source and motor – Pulsator
Patent
1992-10-14
1994-02-22
Denion, Thomas E.
Power plants
Pressure fluid source and motor
Pulsator
60582, 60583, 92 34, 92 38, 92 48, F15B 700, F01B 1900
Patent
active
052877000
ABSTRACT:
A closed loop fully self-contained actuation system for converting a mechanical input motion into a mechanical output motion, which actuates a device such as a flight control surface on an aircraft, comprises an input actuator including a first fluid pressurizing means responsive to the mechanical input motion, and an output actuator including a second fluid pressurizing means, as well as a flexible fluid line extending between the first and second fluid pressurizing means to provide fluid communication therebetween. The second fluid pressurizing means is responsive to fluid flow through the fluid line, thereby initialing the output motion. The system is advantageous because it requires no hydraulic pumps, no accumulators, no reservoirs, and no dynamic seals or mechanical joints, permitting great reliability. The actuation system may be easily folded in conjunction with the apparatus on which it is employed, for compact storage.
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Hein Jeffrey M.
Piechowicz Richard
Denion Thomas E.
McDonnell Douglas Helicopter Company
Scholl John P.
Stout Donald E.
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