Blower fan impellers

Details Blower fan impellers Blower fan impellers

1989-10-27

1991-09-03

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

416182, 416224, 4151212, 55199, 209154, F01D 514

Patent

active

050448870

ABSTRACT:
A fan impeller comprises a back plate, a front plate and a plurality of blades lying between the front and back plates, wherein the blades are fitted relative to the axis of rotation of the impeller to provide a leading edge adjacent the back plate, so as to impart, in use, a lateral sideways vector to a stream of and passing along the blades. At least two of the blades may be of increased thickness than the remaining blades. These improvements increase the life of the fan impeller significantly.

REFERENCES:
patent: 1156118 (1915-10-01), Warg
patent: 1739604 (1929-12-01), Monroe
patent: 1869655 (1932-08-01), Beebe
patent: 2224617 (1940-12-01), Sylvan
patent: 2559785 (1951-07-01), Morgan
patent: 3408796 (1968-11-01), Murray
patent: 3902823 (1975-09-01), Minato et al.
patent: 4108570 (1978-08-01), Yamabe
patent: 4877431 (1989-10-01), Avondoglio

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