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:
Apr. 13, 2021
Filed:
Jun. 10, 2016
Applicant:
Equinor Asa, Stavanger, NO;
Inventor:
Andreas Knauer, Lysekloster, NO;
Assignee:
EQUINOR ASA, Stavanger, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 1/06 (2006.01);
U.S. Cl.
CPC ...
F03D 1/0633 (2013.01); F05B 2240/2211 (2013.01); F05B 2240/30 (2013.01); F05B 2240/95 (2013.01); F05B 2240/96 (2013.01); Y02E 10/72 (2013.01);
Abstract
A bladefor a horizontal-axis wind turbine rotor comprises a radially-outer, energy-extraction portionand a radially-inner, ventilation portion. The radially-inner ventilation portionis shaped to ventilate a central areaof a wake of the rotor during use such that it contains more kinetic energy compared to the wake from a conventional rotor design. The increased wind flow velocity at the centreof the wake generates additional shear stresses, with corresponding turbulence development, which gives rise to increased wake diffusion.