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. 09, 2013
Filed:
Nov. 26, 2007
Daniel García I Erill, Barcelona, ES;
Daniel García I Erill, Barcelona, ES;
Alstom Wind S.L., Barcelona, ES;
Abstract
The method consists in determining at least one of wind turbine operating conditions or parameters related to pitch activity-; determining if lubrication is needed depending on at least the operating conditions or the pitch activity parameters-; and causing lubrication of the pitch blade bearing if lubrication is determined to be needed. Lubrication may consist in injecting grease during a period of time and causing the blades of the wind turbine to be rotated if necessary during grease injection. The device includes means for determining wind turbine operating conditions, means for determining parameters related to pitch activity, a wind turbine main controlfor determining if lubrication is needed depending on operating conditions and pitch activity parameters-, and means for causing lubrication of the pitch blade bearing if lubrication is needed.