Centrifugal blower unit

Details Centrifugal blower unit Centrifugal blower unit

2005-05-17

2005-05-17

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

C415S204000, C415S206000, C416S18600A, C416S20000R, C416S20100A

Reexamination Certificate

active

06893218

ABSTRACT:
In a centrifugal blower unit for an inside and outside air double-layer flow type vehicular air conditioner, a centrifugal fan includes a first fan and a second fan. The first fan and the second fan have plural first blades and second blades arranged about a rotation axis, respectively. A separation wall is provided between the first blades and the second blades. The separation wall restricts mixture of air blown by the first fan and air blown by the second fan. Also, it restricts the air blown by the first fan striking against an end of a divider, thereby suppressing noise due to turbulent air flow.

REFERENCES:
patent: 3081019 (1963-03-01), Freevol
patent: 6142864 (2000-11-01), Uemura et al.
patent: 2000-203235 (2000-07-01), None

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