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:
Nov. 30, 2021
Filed:
Aug. 09, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Takahide Tadokoro, Tokyo, JP;
Takuya Teramoto, Tokyo, JP;
Katsuyuki Yamamoto, Tokyo, JP;
Hiroya Ito, Tokyo, JP;
Yuki Ugajin, Tokyo, JP;
Shingo Hamada, Tokyo, JP;
Takashi Ikeda, Tokyo, JP;
Takafumi Abe, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A propeller fan according to an embodiment of the present invention includes a shaft provided a rotation axis of the propeller fan, and a blade provided on an outer peripheral side of the shaft. The blade has a trailing edge on a rear side of the blade in a rotation direction of the propeller fan. The trailing edge includes a first trailing edge located on an innermost side of the trailing edge, and a second trailing edge adjacent to and outward of the first trailing edge. Where an innermost point of the first trailing edge is a first connection point, a connection point between the first trailing edge and the second trailing edge is a second connection point, and a straight line that extends through the rotation axis and the first connection point is a reference line, the second connection point is located forward of the reference line in the rotation direction, or located on the reference line, and the second trailing edge is located rearward of the second connection point in the rotation direction.