Fan with a resistant plate

Details Fan with a resistant plate Fan with a resistant plate

1991-05-03

1993-08-31

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

123 4149, F04D 300, F04D 2900

Patent

active

052403734

ABSTRACT:
An axial-flow fan to be attached to an output shaft of an internal combustion engine is provided with a circular resistance plate disposed between the fan and the engine housing. The resistance plate extends perpendicularly to a fan driving output shaft of the engine, while surrounding the output shaft. Air flow flowing against the resistance plate is deflected in the radial directions, deviating from the output shaft. This air flow turns back toward the upstream side of the fan, turbulent flow is effectively minimized, and the absorption power of the fan is remarkably reduced.

REFERENCES:
patent: 884894 (1908-04-01), Carroll
patent: 2159189 (1939-05-01), Wais
patent: 4173995 (1979-11-01), Beck
patent: 4184541 (1980-01-01), Beck et al.
patent: 4590889 (1986-05-01), Hiereth
patent: 4634342 (1987-01-01), Rodewald
Introduction to Fluid Mechanics, Fox & McDonald, 1985, pp. 114-116.

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