Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Patent
1986-10-02
1988-06-28
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
416153, 416165, 416157R, 416160, B64C 1138
Patent
active
047535725
ABSTRACT:
A mechanical pitch lock includes a pitch lock screw (60) that simultaneously rotates within an actuator (42) while the actuator moves to change the pitch of a propeller blade (16). While rotating simultaneously with the motion of the pitch actuator, the pitch lock screw maintains a longitudinal position allowing the actuator to move. If the pitch lock screw does not rotate simultaneously with the actuator, the pitch lock screw moves longitudinally with the actuator until it abuts a projection 66 thereby preventing further movement by the actuator.
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Examiner's Report to the Comptroller, Nov. 23, 1987.
Examiner's Report to the Comptroller, Nov. 23, 1987.
Doigan Lloyd D.
Powell Jr. Everette A.
United Technologies Corporation
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