Double propeller for propelling aircraft

Details Double propeller for propelling aircraft Double propeller for propelling aircraft

1984-12-20

1987-06-30

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft propulsion

Screw

416 32, 244 60, B64C 1148, B64C 1150

Patent

active

046764593

ABSTRACT:
Double propeller for propelling aircraft, with two coaxially and axially offset propellers that can be driven separately by associated drive mechanisms through a central shaft and a hollow shaft. To reduce noise and maintain safe operation even when one propeller drive breaks down, the propellers rotate in the same direction and can at at least one prescribed angle of rotation to each other be coupled together in such a way that they cannot rotate in relation to each other by means of a clutch that can be disengaged.

REFERENCES:
patent: 1793933 (1931-02-01), Hoffman
patent: 2477637 (1949-08-01), Mercier
patent: 2978208 (1961-04-01), Halsmer

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