Aircraft propulsion means

Details Aircraft propulsion means Aircraft propulsion means

1981-08-03

1984-12-04

Yuen, Henry C.

Fluid reaction surfaces (i.e., impellers)

Plural impellers having relative movement or independent...

Coaxial rotation

415148, 415150, 416127, B64C 1148

Patent

active

044861460

ABSTRACT:
An aircraft propulsion means 20 comprises a multibladed, unshrouded, propeller fan 27 adapted in a cruise condition to operate at such high disc loadings that a substantial component of swirl is imparted to the slipstream in a given sense, and swirl reducing means (for example a multi-bladed stator 35) arranged with respect to the propeller fan to impart a considerable component of swirl in the opposite sense, whereby the total swirl imparted to the slipstream is nil or relatively low.

REFERENCES:
patent: 1853694 (1932-04-01), Melcher
patent: 2312624 (1943-03-01), Caldwell
patent: 2504559 (1950-04-01), Martin et al.
patent: 3081964 (1963-03-01), Quenzler
patent: 3811791 (1974-05-01), Cotton

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