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. 06, 2013
Filed:
Jul. 19, 2012
Takashi Ikeda, Chiyoda-ku, JP;
Naho Takehara, Chiyoda-ku, JP;
Hiroshi Tsutsumi, Chiyoda-ku, JP;
Takahiro Yamatani, Chiyoda-ku, JP;
Kazunobu Nishimiya, Chiyoda-ku, JP;
Yukihiko Kawanori, Chiyoda-ku, JP;
Takashi Ikeda, Chiyoda-ku, JP;
Naho Takehara, Chiyoda-ku, JP;
Hiroshi Tsutsumi, Chiyoda-ku, JP;
Takahiro Yamatani, Chiyoda-ku, JP;
Kazunobu Nishimiya, Chiyoda-ku, JP;
Yukihiko Kawanori, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Abstract
A centrifugal fan mounted in an air conditioner has the following relationship: outer diameter of a side plate of the centrifugal fan>outer diameter of the blade rear-edge part on side-plate side>diameter of the blade rear-edge part on main plate side>outer diameter of the main plate. In the centrifugal fan, the blade rear-edge part is positioned inside from a straight line connecting the connection point between the blade rear-edge part and the main plate, to the connection point between the blade rear-edge part and the side plate, as viewed from the rotation axis. The blade rear-edge part has a shape such that the distance from the rotation axis becomes larger from the main plate toward the side plate.