PROPELLER (VERSIONS) Russian patent published in 2009 - IPC B64C11/18 

Abstract RU 2351504 C2

FIELD: aircraft engineering.

SUBSTANCE: set of inventions relates to aircraft engineering. Propeller consists of a bush and blades. In compliance with the first version, features the blade shank parts with a zero slip. In compliance with the second version, the aforesaid parts feature negative slip. In compliance with the third version, the propeller shank part is inclined lengthwise forward along the propeller motion. In compliance with the fourth version, the propeller features the tangential line to the saber-like blade, at its shank, passes behind relative to the propeller axis rotation direction.

EFFECT: reduced translation drag.

7 cl, 6 dwg

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RU 2 351 504 C2

Authors

Staroverov Nikolaj Evgen'Evich

Dates

2009-04-10Published

2007-05-29Filed