Rotor device

Details Rotor device Rotor device

1984-06-20

1986-08-05

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Plural impellers having relative movement or independent...

Coaxial rotation

416129, 415 68, B63H 510, B64C 1148

Patent

active

046040323

ABSTRACT:
The invention relates to a rotor device, preferably a boat propeller device. The propeller shaft drives, via a planetary gear system, two propellers in the rotational direction of the shaft and one propeller counter to the rotational direction of the shaft. The propellers are dimensioned so that they absorb approximately equal torques.

REFERENCES:
patent: 1489817 (1924-04-01), Campbell
patent: 1887429 (1932-11-01), Price
patent: 2282266 (1942-05-01), Swaskey
patent: 2383385 (1945-08-01), Heintze
patent: 2451944 (1948-10-01), Hall
patent: 2461931 (1949-02-01), Smith et al.
patent: 2765040 (1956-10-01), Darrah
patent: 3087553 (1963-04-01), Kostyun
patent: 4464095 (1984-08-01), Iida

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