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:
Oct. 29, 2013
Filed:
Apr. 17, 2009
Tomohiro Numajiri, Nagasaki, JP;
Tomohiro Numajiri, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The present invention provides a pitch drive apparatus of a wind generator and the wind generator constituted not to affect a main shaft or a gear box, and capable of preventing reliability from being deteriorated. The pitch drive apparatus includes a wind turbine blade () having a base portion () mounted so as to be turnable around an axis center L with respect to a rotor head (), an electric drive member having an output shaft () mounted on the rotor head () so as to extend in a direction along the axis center (L), a lever () having one end fixed to the output shaft () and extending in a direction intersecting with the output shaft (), and a connecting link () disposed so as to extend in a direction intersecting with the output shaft (). One end of the connecting link () is rotatably mounted on a free end of the lever () and the other end of the connecting link () is rotatably mounted on a drive position P of the wind turbine blade ().