Title:
CENTRIFUGAL BLOWER FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/107649
Kind Code:
A1
Abstract:
[Problem] To make it possible to reduce the risk of inside air mixing with outside air when an air conditioner is operating in an inside/outside air two-layer flow mode. [Solution] This centrifugal blower (1) comprises a first impeller (3), a second impeller (5), and a separation tube (30). An outlet-side end (33) of the separation tube 30 has a first turning surface (34) which turns a first air flow passing through the outside of the separation tube (30) outward in the radial direction. A distance (D1) between an end (46) of an inner edge (41) of a first blade (4) of the first impeller (3) and an edge (35) of the first turning surface (34) is longer than a distance (D2) between an end (65) of an inner edge (61) of a second blade (6) of the second impeller (5) and the edge (35) of the first turning surface (34).
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Inventors:
KANAMORI RYOSUKE (JP)
YOSHIZAKI HISAYOSHI (JP)
HARA KEISUKE (JP)
HAYASHI NAOTO (JP)
YOSHIZAKI HISAYOSHI (JP)
HARA KEISUKE (JP)
HAYASHI NAOTO (JP)
Application Number:
PCT/JP2021/041265
Publication Date:
May 27, 2022
Filing Date:
November 10, 2021
Export Citation:
Assignee:
VALEO JAPAN CO LTD (JP)
International Classes:
F04D29/44; F04D29/28
Domestic Patent References:
| WO2020013288A1 | 2020-01-16 |
Foreign References:
| JP2020139419A | 2020-09-03 | |||
| JP2019173571A | 2019-10-10 | |||
| JP2004132342A | 2004-04-30 | |||
| JP2019044739A | 2019-03-22 |
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