Rotary actuators suitable for bladed rotors

Details Rotary actuators suitable for bladed rotors Rotary actuators suitable for bladed rotors

1974-03-29

1976-08-24

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Having pitch lock or adjustable stop

92 27, 416 46, 416157A, B64C 1140

Patent

active

039763978

ABSTRACT:
A rotary actuator, suitable for use with rotors having flow-varying blading, for effecting adjustment of the blading, including two relatively-rotatable and co-axially-disposed main actuator components. Each of the components carries a respective abutment means, one of which is axially-displaceable with respect to its component between an inoperative position and an operative position, and both of which are so disposed with respect to their components that during operation of the actuator with said one abutment means in its operative position, the two abutment means co-operate to arrest relative rotational movement of said components only upon said components reaching a pre-determined relative rotational position.

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patent: 3720060 (1973-03-01), Davies et al.
patent: 3766831 (1973-10-01), Yeakley

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