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:
Feb. 09, 2010
Filed:
Apr. 24, 2002
Applicants:
Mogens Christensen, Tjele, DK;
Lars Budtz, Nevarra, DK;
Inventors:
Mogens Christensen, Tjele, DK;
Lars Budtz, Nevarra, DK;
Assignee:
Vestas Wind Systems A/S, , DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a wind turbine having rotating means including at least two wind turbine blades which are turnable around the longitudinal axis of said blades, and a wind turbine hub connecting said at least two wind turbine blades with at least one shaft. Further, the wind turbine includes hydraulic means for actuating said at least two wind turbine blades, said hydraulic means being incorporated in said rotating means. The invention also relates to a hydraulic system, an air bleed system and a method of controlling at least two wind turbine blades.