Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Including movement limit stop or damping means
Patent
1983-03-02
1985-11-05
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, B64C 2738
Patent
active
045510679
ABSTRACT:
A rotor for helicopters, in which a central hub supports a plurality of radial blades connected thereto, each of which blade is provided with a surface rigidly connected to it and able to cooperate with respective abutment elements supported by the hub and movable with respect to this latter in a substantially horizontal plane to limit the oscillations of the respective blade in a horizontal plane between limits which are variable as a direct function of the angular velocity of the rotor itself.
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patent: 4297079 (1981-10-01), Marshall
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Caramaschi Vittorio
Castelli Pier Luigi
Costruzioni Aeronautiche Giovanni Agusta S.p.A.
Powell Jr. Everette A.
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