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. 31, 2017
Filed:
Nov. 29, 2012
Applicant:
Vestas Wind Systems A/s, Aarhus N., DK;
Inventor:
Erik Garde, Skødstrup, DK;
Assignee:
Vestas Wind Systems A/S, Aarhus N., DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/18 (2006.01); F03D 7/02 (2006.01); F03D 7/04 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0224 (2013.01); F03D 7/04 (2013.01); F05B 2260/30 (2013.01); F05B 2260/74 (2013.01); F05B 2260/76 (2013.01); F05B 2260/79 (2013.01); F05B 2270/107 (2013.01); F05B 2270/602 (2013.01); F05B 2270/604 (2013.01); Y02E 10/723 (2013.01);
Abstract
A wind turbine comprises a hub, a blade rotatably mounted to the hub, and a pitch system. The pitch system includes a support, a first drive configured to rotate the blade relative to the support, a second drive configured to rotate the support relative to the hub. The support is configured to be selectively fixed relative to the blade and the hub such that the first or second drive may be used to pitch the blade. A method of pitch corresponding to this operation is provided.