Airflow guiding structure for a heat-dissipating fan

Details Airflow guiding structure for a heat-dissipating fan Airflow guiding structure for a heat-dissipating fan

2005-06-28

2005-06-28

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

C415S221000

Reexamination Certificate

active

06910862

ABSTRACT:
A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, an impeller being mounted on the base and having a plurality of blades, a plurality of ribs each extending between the base and the casing along a radial direction of the base, and at least one guiding ring fixedly mounted to the ribs. The guiding ring has an axial length that is longer than a width of the guiding ring in the radial direction. The guiding ring guides and divides airflow passing through the air outlet when the impeller is turning.

REFERENCES:
patent: 2653757 (1953-09-01), Segalman
patent: 6017191 (2000-01-01), Harmsen
patent: 6398492 (2002-06-01), Cho et al.
patent: 6601546 (2003-08-01), Mohr et al.
patent: 6722418 (2004-04-01), Zhang

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