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:
Aug. 31, 2021
Filed:
Dec. 28, 2017
Applicant:
Hanon Systems, Daejeon, KR;
Inventors:
Myung Hoon Kim, Daejeon, KR;
Kyung Seok Cho, Daejeon, KR;
Assignee:
Hanon Systems, Daejeon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/38 (2006.01); F04D 19/00 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/384 (2013.01); F04D 19/00 (2013.01); F04D 19/002 (2013.01); F04D 29/38 (2013.01); F04D 29/66 (2013.01);
Abstract
The present invention relates to an axial flow fan and, more particularly, to an axial flow fan comprising: a hub; and a plurality of blades that are disposed radially on the circumference of the hub such that roots of the blades are coupled to the hub, wherein the blades are formed so as to have a waveform shape such that a position of a trailing edge gradually approaches and recedes from a leading edge repeatedly, the trailing edge is positioned on the same plane, and an installation angle changes in the lengthwise direction of the blades.