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:
Jul. 14, 2009
Filed:
Mar. 02, 2006
Atsushi Suzuki, Aichi-ken, JP;
Tetsuo Tominaga, Hyogo-ken, JP;
Tsuyoshi Eguchi, Hyogo-ken, JP;
Kazuyuki Kamiya, Nagoya, JP;
Asuka Soya, Nagoya, JP;
Atsushi Suzuki, Aichi-ken, JP;
Tetsuo Tominaga, Hyogo-ken, JP;
Tsuyoshi Eguchi, Hyogo-ken, JP;
Kazuyuki Kamiya, Nagoya, JP;
Asuka Soya, Nagoya, JP;
Mitsubishi Heavy Industries Ltd., Tokyo, JP;
Abstract
There is provided a propeller fan in which a clearance between a rotary vane wheel and a shroud is constant three-dimensionally to improve air blowing efficiency and suppress noise. Furthermore, there is provided a propeller fan in which a span length of the rotary vane wheel with respect to the shroud is varied between a front edge portion and a rear edge portion to improve air blowing efficiency and suppress noise. Still further, there is provided a propeller fan characterized in that chamfering is applied only to a negative pressure face of a circumferential outer edge portion of a vane.