Multi-bladed, high speed prop-fan

Details Multi-bladed, high speed prop-fan Multi-bladed, high speed prop-fan

1976-09-24

1979-10-16

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Ambient fluid or exhaust gas directed through hub, fairing...

Aircraft spinner or cowling

416223R, 416245R, B64C 1106, B64C 1114

Patent

active

041711831

ABSTRACT:
A small diameter, highly loaded multiple bladed variable pitch propulsor having swept blades with thin advanced airfoil sections, integrated with a nacelle contoured to retard the airflow through the blades thereby reducing compressibility losses and designed to operate with a turbine engine and using a single stage reduction gear resulting in a high performance, lightweight propulsion system providing a substantial improvement in efficiency over the high bypass ratio turbofan engine.

REFERENCES:
patent: 1833843 (1931-11-01), Leparmentier
patent: 1878907 (1932-09-01), Staats
patent: 1881080 (1932-10-01), Hubert
patent: 2401365 (1946-06-01), Mercier
patent: 2665055 (1954-01-01), Adams
patent: 2670050 (1954-02-01), Enos
patent: 2755044 (1956-07-01), Gurney
patent: 3226031 (1965-12-01), Holland
patent: 3561883 (1971-02-01), Berry
patent: 3834157 (1974-09-01), Hoffmann et al.
Aviation Week and Space Technology, Jan. 3, 1977, vol. 106, No. 1, pp. 46-50.

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