Heat dissipation fan

Details Heat dissipation fan Heat dissipation fan

2007-02-22

2011-10-04

Yu, Justine (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

C415S211200, C415S220000, C416S19800R

Reexamination Certificate

active

08029236

ABSTRACT:
A heat dissipation fan includes a housing, a first rotor, a second rotor, a base and a plurality of static blades. The first rotor has a shaft and a plurality of rotor blades. The second rotor is coupled to the first rotor and has a plurality of rotor blades. The base is disposed in the housing for supporting the first and second rotors. The static blades are disposed between the housing and the base, wherein a rear portion of each static blade extends along an axial line of the heat dissipation fan for improving the working efficiency of the second rotor.

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patent: 2007/0286721 (2007-12-01), Chang et al.
patent: 54009007 (1979-01-01), None

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