US 12,594,730 B2Granted

Method of forming a wind turbine rotor blade

AssigneeLm Wind Power A/S

InventorsMatthew Joseph Emig, Jesper Buch Thuesen, Peter Anthony Broome, Michael Blanc

Life of this patent

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Abstract

A method of forming a rotor blade includes positioning first dry skin layer(s) in a first mold. The method also includes placing a wedge-shaped core material having a mounting surface atop the first dry skin(s) in the first mold at a trailing edge end of the rotor blade. The method further includes infusing the first dry skin layer(s) and the core material together via a resin material to form a first shell member. The method includes applying an adhesive onto the mounting surface and then placing a second mold with a second shell member arranged therein atop the first mold containing the first shell member to form the rotor blade such that a portion of the second shell member rests atop the mounting surface. Thus, the method includes securing the shell members together via the adhesive, wherein the core material supports the trailing edge end of the rotor blade.

Claims12

Dependent claims

A method of forming a rotor blade, the method comprising:

positioning one or more first dry skin layers in a first mold of the rotor blade;
placing a wedge-shaped core material atop the one or more first dry skins layers in the first mold at a trailing edge end of the rotor blade, the wedge-shaped core material comprising a mounting surface;
infusing the one or more first dry skin layers and the wedge-shaped core material together via a resin material atop the first mold to form a first shell member of the rotor blade;
applying an adhesive, at least, onto the mounting surface of the wedge-shaped core material;
placing a second mold with a second shell member of the rotor blade arranged therein atop the first mold containing the first shell member to form the rotor blade such that a portion of the second shell member rests atop the mounting surface of the wedge-shaped core material;
and,
securing the first and second shell members together via, at least, the adhesive applied between the second shell member and the mounting surface, wherein the wedge-shaped core material supports the trailing edge end of the rotor blade,
wherein the wedge-shaped core material contacts inner surfaces of the first and second shell members.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/554,524Filed 11 Apr 2022
Priority: EP 2116785612 Apr 2021
Published: US 2024/0198602 A120 Jun 2024
Granted: 7 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

B29C 65/70
Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor: by moulding
B29C 70/46
For producing articles of definite length, i.e. discrete articles: using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
B29C 65/54
Characterised by the way of applying the adhesive: between pre-assembled parts
B29C 70/345
And shaping or impregnating by compression , i.e. combined with compressing after the lay-up operation: using matched moulds