Methods of manufacturing rotor blade components for a wind turbine

Patent metadata

Field	Value
Publication number	US-10987879-B2
Application number	US-201715447248-A
Country	US
Kind code	B2
Filing date	Mar 2, 2017
Priority date	Mar 2, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

The present disclosure is directed to a method of manufacturing a rotor blade component of a wind turbine is disclosed. The method includes placing at least one first pultruded member into a curved rotor blade component mold. More specifically, the first pultruded member includes at least one design characteristic configured to allow the first pultruded member to sit substantially flush against an inner surface of the curved rotor blade component mold. The method also includes placing at least one second pultruded member atop the at least one first pultruded member and infusing the first and second pultruded members together to form the rotor blade component.

First claim

What is claimed is:

1. A method of manufacturing a component of a rotor blade of a wind turbine, the method comprising:
placing at least one lower first pultruded member into a curved component mold, the at least one lower first pultruded member being configured to sit substantially flush against an inner surface of the curved component mold, the at least one lower first pultruded member having a width which is less than an overall width of the component of the rotor blade;
placing at least one upper first pultruded member atop the at least one lower first pultruded member, the at least one upper first pultruded member having a flat upper and lower faces, the flat upper face having a width that is greater than a width of the flat lower face, the at least one upper first pultruded member further comprising tapered side edges that taper from the flat lower face to the flat upper face;
placing at least one second pultruded member atop the flat upper face of the at least one upper first pultruded member; and
infusing the at least one upper first pultruded member, the at least one lower first pultruded member, and the second pultruded member together to form the component of the rotor blade.

2. The method of claim 1 , wherein the component of the rotor blade comprises at least one of a spar cap, a bond cap, or a root ring.

3. The method of claim 1 , wherein the at least one lower first pultruded member has a first side which is a curved surface and an opposing surface which is flat.

4. The method of claim 3 , further comprising placing a plurality of second pultruded members atop the at least one upper first pultruded member.

5. The method of claim 1 , further comprising placing a plurality of upper first pultruded members atop one another.

6. The method of claim 1 , further comprising placing one or more fiber materials in the curved component mold prior to placing the at least one lower first pultruded member.

Assignees

• Gen Electric

Inventors

• Johnson Stephen Bertram
• Chen Xu
• Livingston Jamie T

Classifications

• B29C70/52

  Pultrusion, i.e. forming and compressing by continuously pulling through a die · CPC title

• F05B2240/221

  with horizontal axis · CPC title

• F05B2280/6013

  Fibres · CPC title

• F05B2280/6015

  Resin · CPC title

• F05B2230/31

  Layer deposition · CPC title