Volute inlet of fan

Details Volute inlet of fan Volute inlet of fan

2005-04-26

2005-04-26

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

C415S182100, C415S208100

Reexamination Certificate

active

06884033

ABSTRACT:
The fan has a volute inlet. Designing the shape of inlet to improve the heat dissipation of the fan. The fan has a volute inlet having a reference point on the housing with respect to an outlet. The blades are partially covered by the inlet from the reference point wherein an area of the blades covered by the inlet is from a maximum to a minimum gradually in a closed loop. As a result, the set up current of air can reach a maximum prior to output from the outlet, thereby increasing the heat dissipation capability of the fan.

REFERENCES:
patent: 801304 (1905-10-01), Davidson
patent: 820399 (1906-05-01), Davidson
patent: 3407995 (1968-10-01), Kinsworthy
patent: 3824028 (1974-07-01), Zenkner et al.
patent: 5504650 (1996-04-01), Katsui et al.
patent: 5813834 (1998-09-01), Hopfensperger et al.
patent: 20040123978 (2004-07-01), Hashimoto et al.
patent: 55-69799 (1980-05-01), None
patent: 5-149297 (1993-06-01), None
patent: 9-126193 (1997-05-01), None

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