BLOWER

WIPO Patent Application WO/2019/031151

A1

Provided is a blower wherein the air intake-side space of a fan is divided by a partition wall into a first space through which a first fluid flows and a second space through which a second fluid flows, the purpose of the invention being to prevent the second fluid from flowing into the first space. This blower is provided with a centrifugal fan (24) and a partition wall (28) which is provided in an intake space (224) formed on the air intake side of the centrifugal fan. The partition wall has a base (30) extending in the suction space along the fan axis and dividing the intake space into at least a first space (224A) through which a first fluid flows and a second space (224B) through which a second fluid flows. The partition wall has an enlarged section (32) which is connected to the other side of the fan axis of the base and which extends from the fan axis side toward blades to cover a part of a fan boss. A gap flow passage (33) for providing communication between a first space-side opening (331) which is open to the first space side and a second space-side opening (332) which is open to the second space side is formed between the enlarged section and the fan boss. The enlarged section is located offset to the second space side of the intake space so that pressure on the second space-side opening side is lower than pressure on the first space-side opening side.

KONO TETSUYA (JP)
KOBAYASHI RYO (JP)
YONEZU YASUE (JP)
NAKAJIMA TAKAHIRO (JP)
TSUMAGARI YUKI (JP)
SHINDO TOMOHIDE (JP)

PCT/JP2018/026368

February 14, 2019

July 12, 2018

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DENSO CORP (JP)

B60H1/00; F04D29/44

WO2017119475A1

2017-07-13

JP2004132342A	2004-04-30
JP2016011101A	2016-01-21
JPS61263822A	1986-11-21
JP2000203235A	2000-07-25
JP2018035792A	2018-03-08

YOU-I PATENT FIRM (JP)

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