IMPELLER AND AXIAL BLOWER IN WHICH SAME IS USED

Title:

IMPELLER AND AXIAL BLOWER IN WHICH SAME IS USED

Document Type and Number:

WIPO Patent Application WO/2014/142225

Kind Code:

A1

Abstract:

In the present invention, an impeller is provided with a boss section and a plurality of rotating blades. The boss section has a cylindrical outer shape, and the rotating blades are radially attached to the boss section. The rotating blades have a first region and a second region. The first region has a first stagger angle distribution from an inner circumferential edge to a predetermined radial position, the inner circumferential edge being connected to the boss section. The second region has a second stagger angle distribution from a predetermined radial position to an outer circumferential edge, the predetermined radial position being adjacent to the first region. The second stagger angle distribution is different from the first stagger angle distribution. The second stagger angle distribution has a distribution in which the stagger angle decreases from a maximum radial position in the second region to the outer circumferential edge, the stagger angle being greatest at the maximum radial position.

Inventors:

ARAI TOSHIKATSU (JP)
KIKUCHI HITOSHI (JP)
OKAMOTO KAZUKI (JP)
SHIMOMURA KAZUYUKI (JP)
YABE DAISUKE (JP)
OKAYAMA KAZUYA (JP)
NAKATANI KAORU (JP)

Application Number:

PCT/JP2014/056617

Publication Date:

September 18, 2014

Filing Date:

March 13, 2014

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F04D29/38

Foreign References:

JPH08284887A	1996-10-29
JP2005054798A	2005-03-03
JPS64397A	1989-01-05
JPS5783696A	1982-05-25
JPH1144432A	1999-02-16