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.

Date of Patent:
Jun. 29, 2004

Filed:

Feb. 03, 2003
Applicant:
Inventors:

Yuji Ohya, Chikushino, JP;

Takashi Karasudani, Fukuoka, JP;

Akira Sakurai, Fukuoka, JP;

Masahiro Inoue, Fukuoka, JP;

Nobutaka Fukamachi, Fukuoka, JP;

Kimihiko Watanabe, Fukuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 9/00 ;
U.S. Cl.
CPC ...
F03D 9/00 ;
Abstract

Wind power generator including a wind turbine rotating in a cylindrical wind tunnel body and capable of generating high output power by accelerating a wind flow. The wind tunnel body expands toward a wind flow direction and the wind turbine is arranged adjacent to a wind inlet of the wind tunnel body. An angle of inclination of a side wall portion of the wind tunnel body against an axis of the wind tunnel body is in a range from 5 to 25 degrees. The inlet of the wind tunnel body has a curved surface smoothly expanding toward an outside of the wind tunnel body. A collar-shaped brim is formed on an outside of an opening edge of a wind outlet of the wind tunnel body. Wind flowing into the wind tunnel body sharply accelerates immediately after passing through the inlet and rotates the wind turbine.


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