Pultruded fibrous composite strips having corrugated profiles for wind turbine blade spar caps

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11231008
APP PUB NO 20190195190A1
SERIAL NO

16218631

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Abstract

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A pultruded fibrous composite strip, a spar cap made from such strips, a wind turbine rotor blade having such a spar cap and a method for making a spar cap from such strips are provided. The strip is stacked with similar strips to form the spar cap. The strip has a substantially constant cross-section defined by first and second mutually opposed and longitudinally extending sides, and by first and second longitudinal edges. The first and the second sides include first and second abutment surfaces, respectively. The first and/or the second abutment surfaces has corrugated profile such that a plurality of longitudinally extending grooves are defined on the abutment surface having the corrugated profile. When the strip is stacked with similar strips, and subsequently resin is infused, the grooves on the abutment surface having the corrugated profile facilitate transfer and flow of the resin into spaces between the stacked strips.

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Patent Owner(s)

  • SIEMENS GAMESA RENEWABLE ENERGY A/S

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Girolamo, Donato Molinara, IT 17 44
Kristensen, Jens Jørgen Østergaard Nørresundby, DK 14 104
Noerlem, Michael Svenstrup, DK 7 102

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