Apparatus for adjusting the tracking of the blades in a rotor, e

Details Apparatus for adjusting the tracking of the blades in a rotor, e Apparatus for adjusting the tracking of the blades in a rotor, e

1985-02-25

1986-04-29

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Resilient bias or mount

416134A, B64C 2748

Patent

active

045853940

ABSTRACT:
The blade angle of the blades is adjustable in a rotor for a rotary wing craft by a lever mechanism (13, 14 or 41, 42) secured to the radially inner end of an extension bushing (7; 7.1) or shaft (43). The extension bushing (7; 7.1) or shaft (43) is connected with its radially outer lever (15 or 44) to the blade root (2) or a blade root mounting (39, 50) of a rotor blade in an angular position adjustable manner for adjusting the tracking of the blades. The bushing (7; 7.1) or shaft (43) is adjustable in its angular position relative to the blade root (2) by adjustment screws cooperating with a free end of the lever (15 or 44) which reaches into a gap between two of such adjustment screws (16 or 45) cooperating with counter nuts (17 or 46). By adjusting the angular position of the bushing or shaft with the screws it is possible to assure a uniform tracking among all the blades of a multiblade rotor. Such uniform tracking is desirable if the blades of a rotor are to rotate in the same plane.

REFERENCES:
patent: 1995460 (1935-03-01), Pecker
patent: 2369048 (1945-02-01), Hays
patent: 3008525 (1961-11-01), Jensen
patent: 3227220 (1966-01-01), You
patent: 3227221 (1966-01-01), You
patent: 3292712 (1966-12-01), Schmidt
patent: 3415324 (1968-12-01), Austin
patent: 3736010 (1973-05-01), Larkin
patent: 4099892 (1978-07-01), Martin
patent: 4432696 (1984-02-01), Stephan
patent: 4545733 (1985-10-01), Schwarz et al.

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