Centrifugal air blower

Details Centrifugal air blower Centrifugal air blower

2005-04-19

2005-04-19

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

C415S154300

Reexamination Certificate

active

06881031

ABSTRACT:
A centrifugal air blower includes a fan having a plurality of blades spaced circumferentially therearound for generating an air flow. The fan is disposed in a main case which defines a first discharge passage for the air to flow therethrough. An extended case defining therein a second discharge passage, which has a cross-sectional area progressively greater toward an outlet thereof, is combined with the main case. An air guide means having an arcuately shaped surface for guiding air extends from the first and second discharge passages, in the main case and the extended case toward an outlet of the second discharge passage.

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patent: 6378361 (2002-04-01), Larsen et al.
patent: 07208396 (1995-08-01), None

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