公开(公告)号：US20230072647A1

公开(公告)日：2023-03-09

申请号：US17798998

申请日：2021-04-28

Applicant: LM Wind Power A/S ,  BLADE DYNAMICS LIMITED ,  BLADE DYNAMICS LLLP

Inventor： Madhi BAVILOLIAIE ,  Jeppe JØRGENSEN ,  Rama RAZEGHI ,  Michael KOEFOED ,  Jens Zangenberg HANSEN ,  Thomas MERZHAEUSER ,  Amir RIAHI ,  Andrew M. RODWELL

IPC: F03D1/06 ,  B32B5/12

Abstract: The present invention relates to an interlayer sheet for a spar cap comprising: a first fibre layer comprising a first plurality of fibres, having a first upper fibre surface and a first lower fibre surface, a second fibre layer comprising a second plurality of fibres, having a second upper fibre surface and a second lower fibre surface. The first fibre layer is arranged on top of the second fibre layer, such that the first lower fibre surface is in contact with the second upper fibre surface. The first fibre layer is of a different characteristic than the second fibre layer. Furthermore, the present invention relates to a spar cap for a wind turbine blade, comprising a plurality of pre-cured fibre-reinforced elements including at least a first pre-cured fibre-reinforced element and a second pre-cured fibre-reinforced element; and a number of interlayer sheets arranged between the plurality of pre-cured fibre-reinforced elements.

公开(公告)号：US20230141573A1

公开(公告)日：2023-05-11

申请号：US17911855

申请日：2021-04-28

Applicant: LM WIND POWER A/S ,  BLADE DYNAMICS LIMITED ,  BLADE DYNAMICS LLLP

Inventor： Mahdi BAVILOLIAIE ,  Jeppe JØRGENSEN ,  Michael KOEFOED ,  Jens Zangenberg HANSEN ,  Thomas MERZHAEUSER ,  Rama RAZEGHI ,  Amir RIAHI ,  Andrew M. RODWELL

IPC: F03D1/06 ,  B32B27/08 ,  B32B27/20

CPC classification number: F03D1/0675 ,  B32B27/08 ,  B32B27/20 ,  F05B2280/6003 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2305/72 ,  B32B2305/08 ,  B32B2313/04

Abstract: The present disclosure relates to a spar cap (10) for a wind turbine blade (1000) comprising: a plurality of spar cap layers (20) and a first interlayer (30) arranged between the first spar cap layer (20a) and the second spar cap layer (20b) and comprising: a number of first interlayer areas (31), including a first primary interlayer area (31a), comprising a first number of interlayer sheets (33) comprising a first plurality of fibres (35); and a number of second interlayer areas (32), including a second primary interlayer area (32a), comprising a second number of interlayer sheets (34) comprising a second plurality of fibres (36), wherein the first number of interlayer sheets (33) is of a different characteristic than the second number of interlayer sheets (34).

公开(公告)号：US20230302765A1

公开(公告)日：2023-09-28

申请号：US18019578

申请日：2021-08-06

Applicant: BLADE DYNAMICS LLLP ,  LM WIND POWER A/S

Inventor： Thomas MERZHAEUSER ,  Amir RIAHI ,  Andrew M RODWELL

IPC: B32B5/26 ,  B32B7/022 ,  B32B5/02 ,  B32B5/12 ,  B32B5/06 ,  B32B37/18 ,  F03D1/06

CPC classification number: B32B5/26 ,  B32B7/022 ,  B32B5/024 ,  B32B5/12 ,  B32B5/028 ,  B32B5/073 ,  B32B37/18 ,  F03D1/0675 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2250/20 ,  B32B2307/54 ,  B32B2603/00 ,  B32B2262/0276 ,  B32B2262/106 ,  B32B2305/18 ,  B32B2305/076 ,  B32B2363/00 ,  B32B2367/00 ,  B32B2331/00 ,  B32B2313/04 ,  F05B2230/30 ,  F05B2280/6003

Abstract: The present invention relates to a spar cap for a wind turbine blade comprising a plurality of pre-cured fibre-reinforced elements and a plurality of interlayers. The plurality of pre-cured fibre-reinforced elements include a first pre-cured fibre-reinforced element and a second pre-cured fibre-reinforced element and the plurality of interlayers include a first interlayer comprising a first plurality of fibres embedded in a first cured resin. The first interlayer is being arranged between the first pre-cured fibre-reinforced element and the second pre-cured fibre-reinforced element. The first plurality of fibres have a first elastic modulus, the first cured resin has a second elastic modulus, the first and/or second pre-cured fibre-reinforced elements have a third elastic modulus, and the first interlayer has a fourth elastic modulus. The ratio between the first elastic modulus and the second elastic modulus is between 1:4 and 4:1 and/or the ratio between the third elastic modulus and the fourth elastic modulus is between 1:4 and 4:1.