Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Ikeda0
Takahide Tadokoro0
Katsuyuki Yamamoto0
Date of Patent
May 7, 2024
0Patent Application Number
176048490
Date Filed
June 25, 2019
0Patent Citations
Patent Primary Examiner
Patent abstract
An axial flow fan includes a hub driven to rotate and configured to serve as a rotation axis of the axial flow fan and a blade connected to the hub. The blade has a leading edge and a trailing edge. The trailing edge has an indentation indenting toward the leading edge. The indentation narrows from the trailing edge to the leading edge, and has an apex being a point closest to the leading edge from among the points constituting the indentation. The blade has, at the indentation, a maximum thickness portion at which a thickness of the blade is maximum, and which is positioned radially inside of the apex.
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