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:
Apr. 14, 2009
Filed:
Sep. 14, 2005
Seiji Hirakawa, Tokyo, JP;
Shoji Yamada, Tokyo, JP;
Akira Takamori, Tokyo, JP;
Mitsuhiro Shirota, Tokyo, JP;
Toshiaki Yoshikawa, Tokyo, JP;
Takashi Ikeda, Tokyo, JP;
Hiroki Okazawa, Tokyo, JP;
Seiji Hirakawa, Tokyo, JP;
Shoji Yamada, Tokyo, JP;
Akira Takamori, Tokyo, JP;
Mitsuhiro Shirota, Tokyo, JP;
Toshiaki Yoshikawa, Tokyo, JP;
Takashi Ikeda, Tokyo, JP;
Hiroki Okazawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Chiyoda-Ku, Tokyo, JP;
Abstract
In an air conditioner, reverse inhalation is prevented while broad band noise and wind sound are reduced. A projection arranged at the leading end of a stabilizer on the downstream side of an air stream flowing along a surface of the stabilizer opposing an impeller and protrudes toward the impeller to define the shortest distance to the impeller. A plurality of grooves or projections are provided on the opposing surface on the upstream side of the projection to disturb the air stream flowing along the opposing surface. The positions of the grooves or the projections are arranged apart in a rotational axis direction. A plurality of convex portions are provided to disturb an air stream flowing along a surface of a casing opposing the impellers. The positions of the convex portions are arranged apart in the rotational axis direction of the impeller.