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Wind turbine blade with improved trailing edge bond

A technology for wind turbines and turbine blades, which is applied in the field of wind turbines and can solve problems such as not dealing with the combination of trailing edge structures

Active Publication Date: 2012-04-04
LM WIND POWER AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this trailing edge cap may provide the benefit of reduced noise, it does not address the trailing edge structural bonding issues discussed above

Method used

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  • Wind turbine blade with improved trailing edge bond
  • Wind turbine blade with improved trailing edge bond
  • Wind turbine blade with improved trailing edge bond

Examples

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Embodiment Construction

[0058] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0059] figure 1 A wind turbine 10 of conventional construction is shown. Wind turbine 10 includes a tower 12 having a nacelle 14 mounted thereon. A plurality of turbine blades 16 are mounted to a rotor hub 18 which in turn is conne...

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Abstract

The present invention relates to a wind turbine blade with improved trailing edge bond. The wind turbine blade (16) ineludes a leading edge (24) and a trailing edge (26). The blade has an upper shell member (20) and a lower shell member (22), with eaeh of the shell members having a forward edge bonded at the leading edge of the blade and a rearward edge (19, 21). A rigid bond cap (50) is pre-formed into a designed size and shape of the trailing edge of the blade. The bond cap inciudes oppositely oriented leg members (52) bonded to the respective rearward edges of the shell members 80 as to be essentially flush with the upper and lower shell members. The rigid bond cap defmes at least a portion of the trailing edge of the blade and a primary external bonding bridge between the upper and lower shell members at the rearward edges.

Description

technical field [0001] The present invention relates generally to the field of wind turbines, and more particularly to turbine blades having an improved bond configuration along the trailing edge bond line. Background technique [0002] Turbine blades are the main elements of wind turbines used to convert wind energy into electrical energy. The blades have an airfoil cross-sectional profile such that during operation air flows over the blades creating a pressure differential between the sides. Thus, a lift force directed from the pressure side towards the suction side acts on the blades. The lift force produces torque on the main rotor shaft, which is geared to a generator for producing electricity. [0003] Turbine blades typically consist of an upper (suction side) shell and a lower (pressure side) shell joined together at a join line along the trailing and leading edges of the blade. Bond lines are typically formed by applying a suitable bonding glue or compound along ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCY02E10/72Y02E10/721F03D1/0675
Inventor K·V·劳
Owner LM WIND POWER AS
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