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. 30, 2011
Filed:
Jun. 30, 2005
Masahiro Arinaga, Tokyo, JP;
Kunihiko Kaga, Tokyo, JP;
Shoji Yamada, Tokyo, JP;
Yasuaki Kato, Tokyo, JP;
Hiroshi Yoshikawa, Tokyo, JP;
Masahiro Arinaga, Tokyo, JP;
Kunihiko Kaga, Tokyo, JP;
Shoji Yamada, Tokyo, JP;
Yasuaki Kato, Tokyo, JP;
Hiroshi Yoshikawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A blower that can reduce noise and enhance efficiency by improving a blade structure of the blower used for, for example, an outdoor equipment of an air conditioner. An impeller includes plural blades attached to a peripheral surface of a boss at intervals in a peripheral direction, and a trailing edge of the blade has a protrusion-shaped part in which its central part in a radial direction is curved to expand to a suction side. With such a structure, a discharge velocity of air can be made uniform along the radial direction of the blade, and it becomes possible to reduce noise and to enhance efficiency.