Fan

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner

Reexamination Certificate

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Details

C415S195000, C416S175000, C416S235000

Reexamination Certificate

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07828520

ABSTRACT:
A fan includes a fan blade wheel and a fan frame. A fan wheel seat is disposed at the center of the air outlet of the fan frame and the air outlet faces a heat generating component. An air inlet of the fan frame is disposed opposite to the air outlet. The fan wheel has a hub with first blades and projections extending radially from the circumferential side of the hub. The projections are disposed between every two of the first blades alternately such that it is auxiliary for guiding airflow outward the fan smoothly. Hence, air pressure at the air outlet increases greatly for enhancing effect of heat dissipation effectively.

REFERENCES:
patent: 7008180 (2006-03-01), Fujimori et al.
patent: 2003/0123975 (2003-07-01), Horng et al.

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