A web, a wind turbine blade and a manufacturing method thereof
AssigneeEnvision Energy CO.,LTD
InventorBaecker JORN
Life of this patent
Estimating the term…
Abstract
A web (12) is produced by hand layup, resin transfer moulding or vacuum infusion. The web (12) comprises a waved profile (17) defining a plurality of crest and valleys, the stitching yarns (32) thereof may optionally be aligned with the direction of the crests. The web (12) comprises one or more integrated projecting flanges (26) defining a bonding surface for connection with the spar caps (11) of the wind turbine blade (5). This web saves weight and reduces costs. There is also a wind turbine blade (5) and a manufacturing method.
Claims20
A method of manufacturing a web for use in a wind turbine blade, the web extending in a length direction and in a height direction, the web further extending in a thickness direction arranged perpendicular to the length and height directions, wherein the method comprises:
- arranging a laminate of layers on a mould, wherein the laminate of layers comprises at least one layer of a first fibrous material and the mould has a first moulding surface shaped to form at least one waved profile of the web, the at least one waved profile defines a plurality of crests and/or valleys;
- introducing a resin matrix material into the laminate of layers under vacuum or by hand, preferably before applying vacuum to the infused laminate of layers;
- and
- curing the infused laminate of layers to form a web with a waved profile,
- wherein the web is manufactured by hand lay-up, resin transfer moulding or vacuum infusion.
Dependencies are inferred from the claim text.