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. 28, 2017
Filed:
Jan. 09, 2013
Vestas Wind Systems A/s, Aarhus N, DK;
VESTAS WIND SYSTEMS A/S, Aarhus N, DK;
Abstract
A method of de-icing a wind turbine blade () comprises the steps of: generating heated air using heating means () provided in the root portion of the blade; and continuously circulating the heated air around the interior of the blade through at least a portion of two more longitudinal blade cavities () defined within the blade. The circulating step includes: channeling the heated air from an outlet () of the heating means at least part way through a first longitudinal blade cavity (), towards the tip end () of the blade; at a position along the length of the blade, diverting the heated air from the first longitudinal blade cavity () into a second longitudinal blade cavity (); and channeling the diverted air at least part way through the second longitudinal blade cavity () back to an inlet () of the heating means (). The heated air is circulated through at least a central cavity () and a leading edge cavity () defined between longitudinal webs () within the blade.