The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 26, 2023

Filed:

Apr. 23, 2021
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Sho Kosaka, Kariya, JP;

Shuzo Oda, Kariya, JP;

Masanori Yasuda, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01); F04D 29/44 (2006.01); F04D 5/00 (2006.01); F04D 17/12 (2006.01); F04D 1/00 (2006.01); F04D 7/02 (2006.01); F04D 17/16 (2006.01); F04D 15/00 (2006.01); F04D 17/10 (2006.01); F04D 29/24 (2006.01); F04D 29/22 (2006.01); B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4213 (2013.01); F04D 29/424 (2013.01); B60H 2001/00085 (2013.01); B60H 2001/00135 (2013.01); F04D 1/006 (2013.01); F04D 5/007 (2013.01); F04D 5/008 (2013.01); F04D 7/02 (2013.01); F04D 15/0022 (2013.01); F04D 17/105 (2013.01); F04D 17/125 (2013.01); F04D 17/162 (2013.01); F04D 29/2216 (2013.01); F04D 29/2255 (2013.01); F04D 29/242 (2013.01); F04D 29/4226 (2013.01); F04D 29/4293 (2013.01); F04D 29/44 (2013.01); F05D 2250/50 (2013.01); F05D 2250/52 (2013.01); F05D 2250/711 (2013.01); F05D 2250/712 (2013.01);
Abstract

In a cross section of a flow passage formed to conduct a flow of air from an inside/outside air box to an upper air passage of a scroll casing while the cross section of the flow passage is taken along an imaginary plane which includes an outer edge of an air guide plate and is parallel to a rotational axis of an impeller, a passage section, which is located on one radial side of a separation tube where a nose of the scroll casing is placed, is defined as a first opening section, and another passage section, which is located on an opposite radial side of the separation tube, which is opposite to the nose, is defined as a second opening section. A passage cross-sectional area of the second opening section is larger than a passage cross-sectional area of the first opening section.


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