Fibre composite component for the rotor blade of a wind turbine

Patent metadata

Field	Value
Publication number	US-10066491-B2
Application number	US-201514674947-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Oct 1, 2012
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A composite fiber component for a rotor blade of a wind power plant including a first sandwich core and a second sandwich core arranged next to each other, each having an inside facing a rotor blade interior and an outside facing a rotor blade exterior. A first fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the outside of the second sandwich core. A second fiber-containing laminate layer is arranged on the outside of the first sandwich core and on the outside of the second sandwich core. And, a third fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the inside of the second sandwich core. Also disclosed is a rotor blade for a wind power plant having a composite fiber component as disclosed.

First claim

What is claimed is:

1. A rotor blade of a wind power plant, said rotor blade having an aerodynamic profile with a suction side and a pressure side,
wherein, in a transition region opposite to a profile nose, the rotor blade includes a profile trailing edge that is defined by a closing-off web arranged transversely to a profile chord,
wherein the closing-off web transitions to the suction side and to the pressure side, respectively, at transitional edges,
wherein at least at one of the transitional edges of the rotor blade comprises a first sandwich core arranged next to a second sandwich core,
wherein the first sandwich core and the second sandwich core each have an inside facing a rotor blade interior and an outside facing a rotor blade exterior,
wherein a first fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the outside of the second sandwich core,
wherein a second fiber-containing laminate layer is arranged on the outside of the first sandwich core and on the outside of the second sandwich core,
wherein a third fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the inside of the second sandwich core,
wherein the first sandwich core and the second sandwich core are arranged at an angle with respect to one another in a region where the first fiber-containing laminate layer passes between them,
wherein said angle is defined by the outside of the first sandwich core and the outside of the second sandwich core at the transitional edge, and
wherein said angle lies in a range between 25° and 165°.

2. The rotor blade as claimed in claim 1 , wherein the rotor blade comprises at least two rotor blade shells.

3. The rotor blade as claimed in claim 1 , wherein at least one of the first fiber-containing laminate layer, the second fiber-containing laminate layer and the third fiber-containing laminate layer comprises at least one ply of fiber material which is embedded in a matrix of cured matrix material.

4. The rotor blade as claimed in claim 3 , wherein each of the first fiber-containing laminate layer, the second fiber-containing laminate layer and the third fiber-containing laminate layer comprises at least one ply of fiber material which is embedded in a matrix of cured matrix material.

5. The rotor blade as claimed in claim 3 , wherein the rotor blade comprises at least two rotor blade shells.

6. The rotor blade as claimed in claim 3 , wherein the first fiber-containing laminate layer, the second fiber-containing laminate layer and the third fiber-containing laminate layer have a common matrix of cured matrix material.

7. The rotor blade as claimed in claim 6 , wherein the rotor blade comprises at least two rotor blade shells.

Assignees

• Senvion Se

Inventors

• Eyb Enno
• Bendel Urs
• Mester Hendrik

Classifications

• F01D5/282 Primary

  Selecting composite materials, e.g. blades with reinforcing filaments · CPC title

• F03D1/0683

  Mechanical Engineering · mapped topic

• Y02E10/721

  Cross-Sectional Technologies · mapped topic

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title

• F03D1/0675 Primary

  of the blades · CPC title