Electro-hydraulic helicopter system having individual blade cont

Details Electro-hydraulic helicopter system having individual blade cont Electro-hydraulic helicopter system having individual blade cont

1988-05-16

1990-02-13

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Electrically operated

416114, 416158, 416162, F15B 13044, F63H 308

Patent

active

048996416

ABSTRACT:
A novel electro-hydraulic control system for use with a helicopter includes a plurality of electro-hydraulic modules which provide control signals to corresponding blade actuators. A controller receives helicopter parameter input signals as well as pilot command signals and generates the control signals in accordance with preestablished algorithms. The system is characterized by a hydraulic slip ring that transmits the hydraulic control signals from the fuselage to the rotating assembly. Consequently, the present system provides "fly by wire" operation with individually addressable helicopter blades.

REFERENCES:
patent: 3242992 (1966-03-01), Quenneville et al.
patent: 3664762 (1972-05-01), Lachnit
patent: 4445421 (1984-05-01), Walker et al.
patent: 4749335 (1988-06-01), Brandt et al.

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