Compensating structure for circulation control rotor pneumatic v

Details Compensating structure for circulation control rotor pneumatic v Compensating structure for circulation control rotor pneumatic v

1979-07-11

1980-12-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Drive by fluid reaction jet on working member

Articulated or flexible connection

416 90A, B64C 2718

Patent

active

042420440

ABSTRACT:
Structure for minimizing gap changes in a circulation control pneumatic ve. A flat, flexible ring is located below and adjacent to the plane of the nozzle of blade ducts. The flat, flexible ring is supported from beneath by an array of actuators. In one embodiment, the nozzles are immobilized relative to hub-induced displacements and thus eliminate any feedback due to hub flexing. In another embodiment, the nozzle is pivotally attached to a rotating carrier and feedback is reversed so that feedback becomes negative.

REFERENCES:
patent: 2454040 (1948-11-01), Dalton
patent: 3073394 (1963-01-01), Laufer
patent: 3412680 (1968-11-01), Girard
patent: 3830588 (1974-08-01), Nagler
patent: 3904313 (1975-09-01), Bernaerts
patent: 3917435 (1975-11-01), Wilkerson et al.
patent: 3918833 (1975-11-01), Eilertson
patent: 3990811 (1976-11-01), Danielson

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