Pitch change mechanism

Details Pitch change mechanism Pitch change mechanism

1974-10-21

1976-06-22

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Power or manual actuator on non-rotatable part

416155, B64C 1132

Patent

active

039648397

ABSTRACT:
The torque to the blades for pitch change movement of a variable pitch fan of the type having a harmonic pitch change actuator is increased by coupling both the outputs of the rigid spline and flexispline to drive the blade for pitch change movement.

REFERENCES:
patent: 3794442 (1974-02-01), McMurtry
patent: 3801219 (1974-04-01), Parsons et al.
patent: 3802799 (1974-04-01), McMurtry
patent: 3825370 (1974-07-01), McMurtry et al.
patent: 3866415 (1975-02-01), Ciokajlo

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