Hingeless rotor, especially for a helicopter

Details Hingeless rotor, especially for a helicopter Hingeless rotor, especially for a helicopter

1980-04-17

1982-10-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Nonmetallic resilient mounting

416141, B64C 2738

Patent

active

043526314

ABSTRACT:
A connecting element for securing a rotor blade to the rotor hub of a helicopter rotor comprises at least two components arranged at an angle relative to each other. At least one component extends outside the boundary of the other component on both sides of the other component. Slots are arranged in at least one of the components and these slots extend substantially toward the shearing center or rather toward the central shearing axis. Additionally, each connecting element has a flattened zone adjacent to the rotor hub to function as a flapping hinge. The connecting element also functions as a lead-lag hinge and as a torsion hinge.

REFERENCES:
patent: 3261407 (1966-07-01), Culver et al.
patent: 3330362 (1967-07-01), Kastan
patent: 3606575 (1971-09-01), Lermusiaux
patent: 3880551 (1975-04-01), Kisovec
patent: 3999886 (1976-12-01), Ormiston et al.
patent: 4111605 (1978-09-01), Roman
patent: 4182597 (1980-01-01), Derschmidt
patent: 4266912 (1981-05-01), Roman

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