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.

Date of Patent:
Sep. 10, 2019

Filed:

Jul. 23, 2015
Applicant:

Siemens Gamesa Renewable Energy A/s, Brande, DK;

Inventors:

Alejandro Gomez Gonzalez, Aarhus, DK;

Jesper Monrad Laursen, Silkeborg, DK;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01); F03D 1/06 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0232 (2013.01); F03D 1/065 (2013.01); F03D 1/0633 (2013.01); F03D 1/0641 (2013.01); F03D 1/0675 (2013.01); F05B 2240/31 (2013.01); Y02E 10/721 (2013.01);
Abstract

A rotor blade of a wind turbine, wherein the rotor blade includes a lift modifying device, is provided. The lift modifying device is a part of the trailing edge section of the rotor blade. The lift modifying device is configured such that, at a predetermined loading of the trailing edge section, an air channel opens up a flow path from the pressure side to the suction side and vice versa in the trailing edge section. As a consequence, airflow flowing from the leading edge section of the rotor blade to the trailing edge section is at least partly deflected by the open air channel, which results in a modification of the lift of the rotor blade. A method to modify the lift of a rotor blade of a wind turbine is also provided.


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