Methods and apparatus for producing wind energy with reduced wind turbine noise
First Claim
1. A trailing edge cap for a blade, said trailing edge cap comprising a body configured to mount on at least two blades, wherein each of the at least two blades has at least one of a differing size and a differing shape, said body at least partially covers an original trailing edge portion of the blade, said body having a body edge portion for forming a new trailing edge portion of the blade when said body is mounted on the blade, said body edge portion having a first thickness defined between a higher pressure side of said body edge portion and a lower pressure side of said body edge portion when said body is mounted on the blade, and the original trailing edge portion of the blade having a second thickness defined between a higher pressure side of the blade and a lower pressure side of the blade, said first thickness less than the second thickness.
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Accused Products
Abstract
A trailing edge cap for a blade includes a body configured to mount on at least two differently at least one of sized and shaped blades such that the body at least partially covers an original trailing edge portion of the blade. The body has a body edge portion for forming a new trailing edge portion of the blade when the body is mounted on the blade.
91 Citations
21 Claims
- 1. A trailing edge cap for a blade, said trailing edge cap comprising a body configured to mount on at least two blades, wherein each of the at least two blades has at least one of a differing size and a differing shape, said body at least partially covers an original trailing edge portion of the blade, said body having a body edge portion for forming a new trailing edge portion of the blade when said body is mounted on the blade, said body edge portion having a first thickness defined between a higher pressure side of said body edge portion and a lower pressure side of said body edge portion when said body is mounted on the blade, and the original trailing edge portion of the blade having a second thickness defined between a higher pressure side of the blade and a lower pressure side of the blade, said first thickness less than the second thickness.
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11. A trailing edge cap for a blade, said trailing edge cap comprising a body configured to mount on the blade such that said body at least partially covers an original trailing edge portion of the blade, said body comprising:
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a body edge portion for forming a new trailing edge portion of the blade when said body is mounted on the blade, said body edge portion having a first thickness defined between a higher pressure side of said body edge portion and a lower pressure side of said body edge portion when said body is mounted on the blade, the original trailing edge portion of the blade having a second thickness defined between a higher pressure side of the blade and a lower pressure side of the blade, said first thickness less than the second thickness; and at least one of a body thickness of between about 1 mil and about 100 mils, a modulus of elasticity of between about 0.5 GPa and about 5 GPa, and a polymer. - View Dependent Claims (12, 13, 14)
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15. A blade comprising:
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a blade body having a leading edge portion and an original trailing edge portion; and a trailing edge cap mounted on said blade body and at least partially covering said original trailing edge portion, said trailing edge cap comprising; a trailing edge cap body comprising a body edge portion having a first thickness defined between a higher pressure side of said body edge portion and a lower pressure side of said body edge portion when said trailing edge cap body is mounted on said blade body, said body edge portion forming a new trailing edge portion of said blade body, said original trailing edge portion of said blade body having a second thickness defined between a higher pressure side of said blade body and a lower pressure side of said blade body, said first thickness less than said second thickness; and at least one of a trailing edge cap body thickness of between about 1 mil and about 100 mils, a modulus of elasticity of between about 0.5 GPa and about 5 GPa, and a polymer. - View Dependent Claims (16, 17, 18, 19)
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20. A method comprising:
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providing a trailing edge cap for a blade, wherein the trailing edge cap includes a body that includes a body edge portion having a first thickness defined between a higher pressure side of the body edge portion and a lower pressure side of the body edge portion when the body is mounted on the blade; and mounting the trailing edge cap on the blade such that the trailing edge cap at least partially covers a trailing edge portion of the blade having a second thickness, the first thickness less than the second thickness. - View Dependent Claims (21)
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Specification