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.
Patent No.:
Date of Patent:
Jul. 21, 2020
Filed:
Aug. 06, 2015
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Atsushi Kono, Tokyo, JP;
Takashi Ikeda, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/66 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4226 (2013.01); F04D 29/422 (2013.01); F04D 29/441 (2013.01); F04D 29/663 (2013.01); F04D 29/667 (2013.01); F04D 29/282 (2013.01);
Abstract
A centrifugal blower includes a centrifugal fan having a main plate and a side plate facing each other in a direction of a rotation axis, and a casing to house the centrifugal fan. The casing has a peripheral wall extending along an outer circumferential edge of the centrifugal fan, and has a tongue portion at a position on the peripheral wall. A distance between the outer circumferential edge of the centrifugal fan and the tongue portion is smaller on the main plate side of the centrifugal fan than on the side plate side of the centrifugal fan.