BLOWER DEVICE

WIPO Patent Application WO/2021/172209

A1

A turbo fan (12) rotates around a fan axis (Cf), and blows air drawn in from one side in the axial direction (Da) of the fan axis toward the outside in the radial direction of the fan axis. A fan case (16) has a suction part (162) that is provided on one side in the axial direction relative to the turbo fan, and that has a suction opening (162a) through which the air passes toward the turbo fan. The fan case houses the turbo fan, and is configured such that air is blown out from the turbo fan along the entire circumference of the turbo fan. A guide part (22) is provided on one side in the axial direction relative to the turbo fan. The fan case is arranged such that air converges toward the suction opening from an upstream passage (20a), which is provided on the upstream side of the airflow relative to the suction opening. The guide part reduces unevenness in the flow rate distribution of the air passing through the suction opening due to the generation of unevenness in the distribution of the flow resistance of the air passing through the suction opening, as compared to when the guide part is not provided.

JP2009270778	AIR CONDITIONER
WO/2018/008342	BLOWING APPARATUS

ISHII FUMIYA (JP)
ODA SYUZOU (JP)
IMAHIGASHI SHOICHI (JP)
WATANABE FUMINOBU (JP)

PCT/JP2021/006379

September 02, 2021

February 19, 2021

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DENSO CORP (JP)

F04D29/44; F04D29/66

WO2018219414A2

2018-12-06

JP2019078174A	2019-05-23
JP2013036444A	2013-02-21
JP2010053815A	2010-03-11
JPH09222097A	1997-08-26
JP2014173584A	2014-09-22
JP2015096716A	2015-05-21
JP2010181058A	2010-08-19

YOU-I PATENT FIRM (JP)

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