Blower fan structure

Details Blower fan structure Blower fan structure

2007-01-16

2007-01-16

Nguyen, Ninh H. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S228000

Reexamination Certificate

active

10943102

ABSTRACT:
Provided is an improved blower fan structure in which length of blades is increased and inlet and outlet angles of the blades are optimized for highly increasing an efficiency of the blower fan. Particularly, an outer diameter of the blades is more than or equal to two times of an inner diameter thereof, for increasing the efficiency without generating a noise.

REFERENCES:
patent: 3668887 (1972-06-01), Riello
patent: 4362468 (1982-12-01), Nishikawa et al.
patent: 4647271 (1987-03-01), Nagai et al.
patent: 6769876 (2004-08-01), Sakai et al.
U.S. Appl. No. 10/929,493, to Moon Kee Chung, which was filed Aug. 31, 2004.
U.S. Appl. No. 10/943,007, to Jung Woo Lee et al., which was filed Sep. 17, 2004.

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