Centrifugal fan and frame thereof

Details Centrifugal fan and frame thereof Centrifugal fan and frame thereof

2011-03-22

2011-03-22

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

C415S212100

Reexamination Certificate

active

07909571

ABSTRACT:
A frame for a centrifugal fan. The frame includes an air inlet and an air outlet. A first barricade is formed on one side of the air inlet and extends outwardly, preventing impurities from entering the air inlet. A second barricade is formed on part of the periphery of the air outlet and extends outwardly and axially, contacting a guide plate of a system and reducing reflow of air.

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