Centrifugal blower

Details Centrifugal blower Centrifugal blower

2008-04-01

2008-04-01

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

C416S187000

Reexamination Certificate

active

07351031

ABSTRACT:
A centrifugal blower includes a housing, an impeller, and a guiding cover. The housing includes a compartment delimited by an annular wall. A radial air inlet is defined in the annular wall and communicated with the compartment. The compartment includes an axial opening. The impeller is rotatably mounted in the compartment and includes a hub and a plurality of blades. The guiding cover is mounted on top edges of the blades and includes an axial air inlet in a central portion thereof. The guiding cover covers the axial opening of the compartment without in contact with the housing. The blades and the guiding cover turn synchronously when the impeller turns. Airflow is driven by the blades and guided by the guiding cover and exits the housing via the radial air outlet.

REFERENCES:
patent: 902533 (1908-10-01), Hubbard
patent: 1105967 (1914-08-01), Davidson
patent: 6039539 (2000-03-01), Berg
patent: 7008189 (2006-03-01), Jarrah et al.
patent: 7108482 (2006-09-01), Chapman
patent: 2006/0051203 (2006-03-01), Lee et al.

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