Bladed rotor system and pitch controls therefor

Details Bladed rotor system and pitch controls therefor Bladed rotor system and pitch controls therefor

1983-12-15

1986-04-29

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to fixed actuator

416 99, 416 24, B64C 2774

Patent

active

045853924

ABSTRACT:
A rotor system for a helicopter having a power shaft carrying at least one pair of diametrically opposite frames for rocking motion about an axis radially of said shaft. Sets of lift blades carried by the frames, respectively, for rocking motion about radial axes. A first pitch control means for rocking the frames and blades sets periodically. A second control means for rocking the blade sets simultaneously and equally relative to the frames. A third control means, including servomechanisms, for independently rocking the individual blades of said sets in different directions and extents relative to each other.

REFERENCES:
patent: 1040136 (1912-10-01), Brown
patent: 1657119 (1928-01-01), Funck
patent: 1880550 (1932-10-01), Wander
patent: 2159382 (1939-05-01), John
patent: 2549407 (1951-04-01), Apostolescu
patent: 2556710 (1951-06-01), Stalker
patent: 2648390 (1953-08-01), DeLagabbe
patent: 2755866 (1956-07-01), Apostolescu
patent: 3640488 (1972-02-01), Florschutz

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