Full authority propeller pitch control

Details Full authority propeller pitch control Full authority propeller pitch control

1992-12-22

1994-11-15

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Motor bodily rotatable with impeller hub or shaft

416 48, 91433, 91449, 91461, B64C 1140

Patent

active

053642317

ABSTRACT:
A control for a hydraulic propeller pitch actuator includes a low power pilot valve responsive to digital electronic input signals to control movement of a hydraulic servomotor driving a higher power servovalve. Negative feedback motion is delivered from the servomotor to both the pilot valve and the servovalve.

REFERENCES:
patent: 3395762 (1968-08-01), Itazawa
patent: 3501251 (1970-03-01), Haglund et al.
patent: 3554086 (1971-01-01), Wills
patent: 3583828 (1971-06-01), White
patent: 3664762 (1972-05-01), Lachnit
patent: 4028004 (1977-06-01), Wind
patent: 4097189 (1978-06-01), Harlamert
patent: 4132503 (1979-01-01), Kreft et al.
patent: 4142835 (1979-03-01), Hisada
patent: 4523891 (1985-06-01), Schwartz et al.
patent: 4533296 (1985-08-01), Duchesneau et al.
patent: 4650402 (1987-03-01), Jones, Jr. et al.
patent: 4671737 (1987-06-01), Whitehouse
patent: 4756667 (1988-07-01), Wyrostek et al.
patent: 5042966 (1991-08-01), Schwartz et al.
patent: 5054369 (1991-10-01), Wardle et al.

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