Multi-stage blower

Details Multi-stage blower Multi-stage blower

2005-01-10

2008-10-14

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Runner having full circular shroud for blades

C416S175000, C416S203000

Reexamination Certificate

active

07435051

ABSTRACT:
A blower is formed with multiple sets of rotatable rings of blades coupled to each other. Multiple inlet rings are correspondingly coupled to the multiple sets of rotatable rings of blades. In one embodiment, the blades may be forward facing blades and include a volute to accomplish pressure recovery. In further embodiments, the blades are backward facing. Such backward facing blades are designed to provide a static pressure rise. In some embodiment, three or more rings of blades with corresponding inlet rings are utilized.

REFERENCES:
patent: 5755557 (1998-05-01), Alizadeh
patent: 2002/0180285 (2002-12-01), Machiroutu
patent: 2004/0101399 (2004-05-01), Chang et al.
patent: 2004/0247441 (2004-12-01), Kim et al.
patent: 62-113896 (1987-05-01), None
patent: 2002-019445 (2002-01-01), None
Search Report for International Application PCT/US2006/000826, (May 9, 2006).

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