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:
Sep. 29, 2020
Filed:
Nov. 23, 2016
Vestas Wind Systems A/s, Aarhus N., DK;
Anton Bech, Ringkøbing, DK;
Vestas Wind Systems A/S, Aarhus N., DK;
Abstract
A method of making a wind turbine blade is described. The blade comprises an outer shell having a laminate structure. The method comprises providing a blade mould () defining a shape of at least part of the outer shell of the blade. The mould extends in a spanwise direction between a root end () and a tip end (), and extends in a chordwise direction between a leading edge () and a trailing edge (). The method further includes providing a plurality of dry plies () comprising dry structural fibrous material and a plurality of prepreg () plies comprising structural fibrous material impregnated with resin. The plurality of dry plies and the plurality of prepreg plies are arranged in the mould to form a plurality of layers of the laminate structure of the outer shell of the blade. The plies are arranged in the mould such that the dry plies are interleaved with the prepreg plies to form a hybrid shell structure in which the plies are arranged in a staggered relationship such that corresponding edges of the dry plies are offset from one another in the spanwise and/or chordwise direction of the mould and/or corresponding edges of the prepreg plies are offset from one another in the spanwise and/or chordwise direction of the mould.