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:
Jan. 08, 2013
Filed:
Jul. 28, 2010
Naota Watanabe, Tokyo, JP;
Naota Watanabe, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
In order to provide a rolling bearing for a wind turbine and a wind turbine which can prevent the deterioration of the lubrication condition even when the rolling bearing receives high load while the inner ring and the outer ring are kept still relative to each other, the wind turbine generator of the present invention for supporting a first member and a second member which rotates relative to the first member, comprises an inner ring to which the first member is fixed; an outer ring to which the second member is fixed; a center ring which is arranged between the inner ring and the outer ring and can rotate independently of the inner ring and the outer ring; rolling elements which are provided between the bearing rings in such a manner that the rolling elements can freely roll; and a center ring drive unit for rotating the center ring.