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:
Oct. 01, 2024
Filed:
Sep. 28, 2023
Applicant:
Sanyo Denki Co., Ltd., Tokyo, JP;
Inventor:
Yoshihisa Yamazaki, Tokyo, JP;
Assignee:
SANYO DENKI CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 19/00 (2006.01); F04D 29/38 (2006.01);
U.S. Cl.
CPC ...
F04D 19/002 (2013.01); F04D 29/384 (2013.01);
Abstract
Provided is an axial fan including a plurality of blades configured to produce an air current flowing from an inlet side to an outlet side, in which: the blade includes a curved portion rising toward the inlet side along an outer peripheral edge of the blade; a starting position of the curved portion delineates a convex curve protruding radially outward on the blade as viewed from the inlet side; and letting a total length of the convex curve be X, a length Y from an end of the convex curve on a front edge of the blade to a vertex of the convex curve satisfies a relationship of 0<Y≤0.6X as viewed from the inlet side.