Device for controlling cyclic and collective pitch of a helicopt

Details Device for controlling cyclic and collective pitch of a helicopt Device for controlling cyclic and collective pitch of a helicopt

1983-06-13

1985-09-03

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to fixed actuator

416140, 416162, B64C 2774

Patent

active

045389616

ABSTRACT:
A device for controlling the cyclic and collective pitch of a helicopter rotor in which a fixed ring of an oscillating plate is maintained regularly fixed and is guided in its oscillations with respect to a drive shaft by a plurality of variable configuration supports uniformly distributed about the said drive shaft and connected to the said fixed ring by means of cylindrical pivots at least one of which is eccentric with respect to an axis rotation of an associated supported fork, which is perpendicular thereto.

REFERENCES:
patent: 2439089 (1948-04-01), Hodson
patent: 2487953 (1949-11-01), Sznycer
patent: 2530276 (1950-11-01), Weir
patent: 2689616 (1954-09-01), Nagler
patent: 2861640 (1958-11-01), Du Pont
patent: 2978037 (1961-04-01), Focke
patent: 3288227 (1966-11-01), Derschmidt
patent: 3322200 (1967-05-01), Tresch
patent: 3508841 (1970-04-01), Derschmidt
patent: 3545880 (1970-12-01), Mouille
patent: 3764229 (1973-10-01), Ferris et al.

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