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:
Sep. 16, 2008
Filed:
May. 06, 2005
Masaaki Shibata, Nagasaki, JP;
Yoshiyuki Hayashi, Nagasaki, JP;
Toyoaki Furukawa, Nagasaki, JP;
Yuuji Yatomi, Nagasaki, JP;
Eiji Kato, Nagasaki, JP;
Yoshinari Teramoto, Nagasaki, JP;
Hisao Miyake, Nagasaki, JP;
Koshi Hayakawa, Nagasaki, JP;
Masaaki Shibata, Nagasaki, JP;
Yoshiyuki Hayashi, Nagasaki, JP;
Toyoaki Furukawa, Nagasaki, JP;
Yuuji Yatomi, Nagasaki, JP;
Eiji Kato, Nagasaki, JP;
Yoshinari Teramoto, Nagasaki, JP;
Hisao Miyake, Nagasaki, JP;
Koshi Hayakawa, Nagasaki, JP;
Mitsubishi Heavy Industries Ltd., Tokyo, JP;
Abstract
A wind turbine capable of varying active annular plane area by composing such that blades are attached to a cylindrical rotor movable in the radial direction of the rotor, the blades being reciprocated in the radial direction by means of a blade shifting mechanism connected to the root of each blade, or the blade itself is divided so that the outer one of the divided blade is movable in the radial direction. With this construction, the wind turbine can be operated with a maximum output within the range of evading fatigue failure of the blades and rotor by adjusting the active annular plane area in accordance with wind speed.