Title:
IMPELLER, CENTRIFUGAL BLOWER, AND AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210127
Kind Code:
A1
Abstract:
An impeller provided with a main plate that is rotationally driven, an annular side plate that is arranged opposing the main plate and that forms a suction port for a gas, and a plurality of vanes connected to the main plate and the side plate and arranged in the circumferential direction around the rotational axis of the main plate, wherein each of the plurality of vanes has an inner-circumferential end positioned on the rotational-axis side in the radial direction centered on the rotational axis, an outer-circumferential end positioned on the outer-circumferential side of the inner-circumferential end in the radial direction, a sirocco blade part that includes the outer-circumferential end and constitutes a forward-facing vane formed with an exit angle greater than 90 degrees, and a turbo blade part that includes the inner-circumferential end and constitutes a rearward-facing vane, and in a blade profile formed by the end part on the side facing a suction port, a first blade thickness on the inner-circumferential side is greater than a second blade thickness on the outer-circumferential side.
Inventors:
TERAMOTO TAKUYA (JP)
HAYASHI HIROYASU (JP)
HORIE RYO (JP)
YAMAGUCHI TAKASHI (JP)
NAGANO TOMOHIRO (JP)
MICHIKAMI KAZUYA (JP)
YAMATANI TAKAHIRO (JP)
HAYASHI HIROYASU (JP)
HORIE RYO (JP)
YAMAGUCHI TAKASHI (JP)
NAGANO TOMOHIRO (JP)
MICHIKAMI KAZUYA (JP)
YAMATANI TAKAHIRO (JP)
Application Number:
PCT/JP2020/016713
Publication Date:
October 21, 2021
Filing Date:
April 16, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D29/30
Domestic Patent References:
| WO2008111368A1 | 2008-09-18 | |||
| WO2019082378A1 | 2019-05-02 |
Foreign References:
| JP2000240590A | 2000-09-05 | |||
| JP2009203897A | 2009-09-10 | |||
| JP2012202368A | 2012-10-22 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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