Rotor having a hingeless and bearingless blade connection

Details Rotor having a hingeless and bearingless blade connection Rotor having a hingeless and bearingless blade connection

1982-06-01

1984-06-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416138, 416141, B64C 2738

Patent

active

044525699

ABSTRACT:
The blades or wings of a rotor for example of a rotary wing aircraft, are nnected to the rotor head in a hingeless and bearingless manner by a blade neck section, which is flexible relative to torsion loads, flapping movements and lead-lag movements. The blade angle adjustments are made by a torsion stiff control rod bridging the flexible blade neck section. The control rod is flexible relative to flapping and lead-lag movements. The radially outer end of the control rod is rigidly connected to the respective wing. The radially inner end of the control rod is connected to the rotor head in such a manner that the control rod is movable substantially in the direction of its own longitudinal axis.

REFERENCES:
patent: 2757745 (1956-08-01), Verhage et al.
patent: 3701612 (1972-10-01), Breuner
patent: 3865511 (1975-02-01), Breuner
patent: 3879153 (1975-04-01), Breuner
patent: 4111605 (1978-09-01), Roman et al.
patent: 4266912 (1981-05-01), Roman
patent: 4349317 (1982-09-01), Desjardins

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