Title:
CENTRIFUGAL BLOWER
Document Type and Number:
WIPO Patent Application WO/2018/020894
Kind Code:
A1
Abstract:
Provided is a blower that comprises a centrifugal fan (18) and a case (12). The centrifugal fan comprises a plurality of vanes (181) that have one end (181a) on one side of the axial direction and are arranged about a fan axis, and an annular one-side plate (182) to which the plurality of vanes are each linked at the one end. The case has a one-side case section (221) arranged on the one side of the axial direction relative to the one-side plate. The one-side case section comprises a plate-opposing surface (221b) opposing the one-side plate across a gap, and an inside extended surface (221c) that is formed further inside than the one-side plate in the radial direction and is extended from the plate-opposing surface. In an axial direction cross-section including the fan axis, the inside extended surface is formed by being bent concavely so as to be located increasingly to the other side on the side opposite to the one side of the axial direction toward the inside in the radial direction, and includes a tangential axial direction section (221d) having a tangent (L1t) that is oriented along the axial direction.
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Inventors:
YOSHINO ETSURO (JP)
TAKEUCHI YASUHIRO (JP)
ISHII FUMIYA (JP)
TAKEUCHI YASUHIRO (JP)
ISHII FUMIYA (JP)
Application Number:
PCT/JP2017/022193
Publication Date:
February 01, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
SOKEN INC (JP)
DENSO CORP (JP)
DENSO CORP (JP)
International Classes:
F04D29/66; F04D29/44
Foreign References:
| JP2011163235A | 2011-08-25 | |||
| JPS5483950U | 1979-06-14 | |||
| JP2008138536A | 2008-06-19 | |||
| JP2016102469A | 2016-06-02 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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