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:
Jan. 30, 2024
Filed:
Oct. 30, 2018
Mitsubishi Electric Corporation, Tokyo, JP;
Takuya Teramoto, Tokyo, JP;
Hiroyasu Hayashi, Tokyo, JP;
Atsushi Kono, Tokyo, JP;
Ryo Horie, Tokyo, JP;
Kazuya Michikami, Tokyo, JP;
Takahiro Yamatani, Tokyo, JP;
Hiroshi Tsutsumi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A turbo fan includes a main plate and a plurality of blade portions. The plurality of blade portions include a plurality of first blade portions and a plurality of second blade portions. In a case where, in each of the plurality of first blade portions, a length of a virtual straight line connecting a first inner peripheral end part and a first outer peripheral end part is defined as a first chord length, and in each of the plurality of second blade portions, a length of a virtual straight line connecting a second inner peripheral end part and a second outer peripheral end part is defined as a second chord length, the first chord length and the second chord length are not equal to each other at positions separated by a same distance from the main plate in the axial direction of the rotary shaft.