F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/20
F04D 29/28 (2006.01)
Patent
CA 1320704
ABSTRACT OF THE DISCLOSURE A fan includes a plurality of circumferentially spaced blades fixed on an end of a motor shaft. Each of the blades includes a series of radially interconnected oblique planes which are all inclined circumferentially of the motor shaft in a direction so as to press or suck fluid when the motor shaft rotates. The outer one of any adjacent two of the oblique planes extends radially outwardly from the inner adjacent plane toward the other end of the motor shaft at an angle of less than 90 degrees so that the blades are generally L-shaped. The outermost one of the oblique planes of each of the blades is generally parallel to the motor shaft. Thereby, fluid can be pressed or sucked axially and radially of the motor shaft to establish a generally semi-spherical fluid flow field.
582319
Hsu Yun-Tung
Swabey Ogilvy Renault
LandOfFree
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