Propeller pitch change actuation system

Details Propeller pitch change actuation system Propeller pitch change actuation system

1983-06-15

1985-06-18

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Motor bodily rotatable with impeller hub or shaft

416165, B64C 1138

Patent

active

045238910

ABSTRACT:
A propeller pitch change actuation system comprises an input actuator (230) driving a ball screw (200). Operation of the ball screw rotates a torque tube (140) about the longitudinal axis thereof to drive a screw 145 and control valve 120 which controls the pressurization of pitch change actuator (87). Actuator (87) is supplied with hydraulic fluid through the interior of the torque tube.

REFERENCES:
patent: 2337613 (1943-12-01), Martin
patent: 2378938 (1945-06-01), McCoy
patent: 2388276 (1945-11-01), McCoy
patent: 2426007 (1947-08-01), Forsyth
patent: 2636566 (1953-04-01), Jedrziewski
patent: 2640555 (1953-06-01), Cushman
patent: 2738022 (1956-03-01), Zwack
patent: 2910126 (1959-10-01), Jedrziewski
patent: 2913056 (1959-11-01), Farkas
patent: 2923361 (1960-02-01), Best
patent: 3001588 (1961-09-01), Fischer
patent: 3024848 (1962-03-01), Chilman et al.
patent: 3068943 (1962-12-01), Fischer
patent: 3170521 (1965-02-01), Gaubis et al.
patent: 3212586 (1965-10-01), Barnes et al.
patent: 3240275 (1966-03-01), Bennett
patent: 3263754 (1966-08-01), Belliere
patent: 3589830 (1971-06-01), Mogren
patent: 4061440 (1977-12-01), Belliere

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