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:
Nov. 13, 2007
Filed:
Apr. 29, 2004
Bernt Ebbe Pedersen, Kolding, DK;
Jørgen Dahl Vestergaard, Kibæk, DK;
Peter Grabau, Kolding, DK;
Ib Frydendal, Føvling, DK;
Bernt Ebbe Pedersen, Kolding, DK;
Jørgen Dahl Vestergaard, Kibæk, DK;
Peter Grabau, Kolding, DK;
Ib Frydendal, Føvling, DK;
LM Glasfibeer A/S, Luderskov, DK;
Abstract
Wind turbine blade () including adjustable lift-regulating means () arranged on or at the surface of the wind turbine blade (), said lift-regulating means being provided with activating means by means of which they can be adjusted and thus alter the aerodynamic properties of the blade (). The lift-regulating means () and the activating means are adapted and arranged such that by activation of the activating means, the lift can be reduced in a zone extending in the longitudinal direction of the blade () from a first position adjacent the blade tip () to a second position between the position and the blade root () and this second position is variable in the longitudinal direction of the blade () by adjusting activate means. The lift-regulating means are formed of at least one flexible flap (). The invention further relates to a wind turbine rotor including such wind turbine blades, to a wind turbine and to a method of controlling the wind turbine.