Damper and seal for propeller quill shaft

Details Damper and seal for propeller quill shaft Damper and seal for propeller quill shaft

1994-11-10

1995-10-31

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Power or manual actuator on non-rotatable part

416170R, 416500, 464147, 277DIG9, B64C 1130

Patent

active

054624100

ABSTRACT:
Damping and sealing of the quill shaft (30) that transmits torque from one rotating component to another as for example in a pitch change actuator system for aeronautical propellers is provided by an O-ring (40) mounted in the space between the end of ball screw (20) and the flange (41) radially extending from quill shaft (30) and the preload of the O-ring (40) provided by the shims (46) bearing against flange (41) and O-ring (40) which serves to enhance the wearability of splines (26, 28 and 50).

REFERENCES:
patent: 3171334 (1965-03-01), Rasmussen
patent: 3447822 (1969-06-01), King
patent: 3677663 (1972-07-01), Cronstedt
patent: 3722641 (1973-03-01), Kusiak
patent: 4313463 (1982-02-01), Weirich
patent: 4523891 (1985-06-01), Schwartz et al.

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