Helicopter rotor

Details Helicopter rotor Helicopter rotor

1986-10-02

1987-12-22

Powell, Jr., E. A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, 416 230, B64C 2738

Patent

active

047144092

ABSTRACT:
A helicopter rotor includes a plurality of rotor blades attached to a rotor hub by flexure members adapted during operation to permit pitch changes and flap and lag movements of the rotor blades. Each flexure member comprises a plurality of longitudinally extending reinforcing plates which in cross section extend generally radially from a geometric center of the flexure member and are enclosed in a resilient matrix material.

REFERENCES:
patent: 3261407 (1966-07-01), Culver et al.
patent: 3384185 (1968-05-01), Fernandez
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3762834 (1973-10-01), Bourquardez et al.
patent: 4111605 (1978-09-01), Roman et al.
patent: 4182597 (1980-01-01), Derschmidt
patent: 4345876 (1982-08-01), Schwarz et al.
patent: 4349317 (1982-09-01), Desjardins
patent: 4352631 (1982-10-01), Buchs et al.
patent: 4455123 (1984-06-01), Sanders et al.
patent: 4650401 (1987-03-01), Yao et al.

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