Helicopter rotor

Details Helicopter rotor Helicopter rotor

1987-11-20

1989-02-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

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

Including movement limit stop or damping means

416106, 416134A, B64C 2738

Patent

active

048080756

ABSTRACT:
A helicopter rotor on which each blade is connected in articulated manner to a center hub by means of a fork, the vertical plane movement of which is limited, below a given speed of the rotor, by a pair of limit rocker arms located between the hub and a ring nut mounted for rotation on the fork and angularly integral with the hub by means of a rod of variable length connected in articulated manner to a slide supported on the hub and arranged substantially horizontally and crosswise in relation to the blade.

REFERENCES:
patent: 2815821 (1957-12-01), Echeverria
patent: 4342540 (1982-08-01), Lovera et al.
patent: 4361415 (1982-11-01), Aubry
patent: 4369019 (1983-01-01), Lovera et al.
patent: 4512717 (1985-04-01), Pancotti et al.
patent: 4516909 (1985-05-01), Caramaschi et al.
patent: 4549851 (1985-10-01), Pariani
patent: 4551067 (1985-11-01), Caramaschi et al.
patent: 4652211 (1987-03-01), Castelli et al.

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