Title:
AIR BLOWER AND AIR CONDITIONING DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2022/107309
Kind Code:
A1
Abstract:
An impeller of this air blower is provided with a rotating main plate, a first vane, and a second vane. The first vane has, on an inner side of the first vane in a direction radially to a rotating axis, a first inclined plane having a chord length that becomes longer from the end on the side opposite to the rotating main plate toward the rotating main plate. The second vane has, on an inner side of the second vane in the direction radially to the rotating axis, a second inclined plane having a chord length that becomes longer from the end on the side opposite to the rotating main plate toward the rotating main plate. The chord length of the second vane on a suction downstream side is longer than the chord length of the first vane on the suction downstream side, and the first inclined plane of the first vane and the second inclined plane of the second vane on a suction upstream side are along each other when the first vane and the second vane are seen in a meridian cross-section of the impeller.
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Inventors:
MIYAWAKI KOSUKE (JP)
FUKUI TOMOYA (JP)
SAKODA KENICHI (JP)
NAKANO MIYU (JP)
FUKUI TOMOYA (JP)
SAKODA KENICHI (JP)
NAKANO MIYU (JP)
Application Number:
PCT/JP2020/043388
Publication Date:
May 27, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D29/30
Domestic Patent References:
| WO2006035586A1 | 2006-04-06 |
Foreign References:
| JPH07279892A | 1995-10-27 | |||
| JPH05321891A | 1993-12-07 | |||
| JPH0252019A | 1990-02-21 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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