公开(公告)号：WO2021219751A1

公开(公告)日：2021-11-04

申请号：PCT/EP2021/061185

申请日：2021-04-28

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

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

IPC: B29D99/00 ,  B29C70/08 ,  B29C70/44 ,  B29C70/54 ,  B29C70/00 ,  B32B5/02 ,  B32B5/06 ,  B32B5/26 ,  B32B7/02 ,  B32B7/09 ,  B32B7/12 ,  F03D1/06 ,  B29C70/30 ,  B29L31/08 ,  B29C70/52

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：WO2021219204A1

公开(公告)日：2021-11-04

申请号：PCT/EP2020/061761

申请日：2020-04-28

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

Inventor： BAVILOLIAIE, Mahdi ,  JØRGENSEN, Jeppe ,  RAZEGHI, Rama ,  KOEFOED, Michael ,  HANSEN, Jens Zangenberg

IPC: B29C70/24 ,  B29C70/88 ,  B29C70/12 ,  B29L31/08

Abstract: The present disclosure relates to an interlayer (1) for being arranged between a first element (50) and a second element (60) of a fibre reinforced composite material (100), the interlayer (1) comprises an interlayer sheet (2) comprising one or more fibre layers (10) extending in a fibre layer plane, the one or more fibre layers (10) including a first fibre layer (10) comprising a first plurality of fibres (6) and having a first upper fibre surface (11) and a first lower fibre surface (12), wherein the interlayer sheet (2) has an upper interlayer surface (3) and a lower interlayer surface (4) and wherein the interlayer (1) comprises a plurality of conductive fibres (6), wherein each of the plurality of conductive fibres (6) forms part of the upper interlayer surface (3) as well as the lower interlayer surface (4).

公开(公告)号：WO2023066787A1

公开(公告)日：2023-04-27

申请号：PCT/EP2022/078532

申请日：2022-10-13

Applicant: LM WIND POWER A/S

Inventor： BRANDT, Frederik ,  MADSEN, Kristian ,  KOEFOED, Michael

IPC: B29B11/16 ,  B29D99/00

Abstract: The present invention relates a method of manufacturing a wind turbine blade (10) part using a preform (98). A plurality of layers are arranged within a preform mould (90) to form a stack of layers, wherein one or more of the layers is formed by an elongate fabric (70) comprising a fibre material treated with a binding agent. The elongate fabric comprises an alternating pattern of first sections of fibre material free from binding agent and second sections of fibre material treated with binding agent.

公开(公告)号：WO2022074215A1

公开(公告)日：2022-04-14

申请号：PCT/EP2021/077901

申请日：2021-10-08

Applicant: LM WIND POWER A/S

Inventor： BRINK, Morten, Bak ,  NIELSEN, Lars ,  JESPERSEN, Klavs ,  KOEFOED, Michael ,  HANSEN, Jens, Zangenberg ,  BARSLEV, Henrik

IPC: B29C70/54 ,  B29C70/44 ,  B29D99/00

Abstract: A method of manufacturing a wind turbine blade part, such as a spar cap (41, 45), by means of resin transfer moulding, preferably vacuum assisted resin transfer moulding, where fibre reinforcement material is impregnated with liquid resin in a mould cavity, wherein the mould cavity comprises a rigid mould part having a mould surface defining a surface of the wind turbine blade part is described. The method comprises the steps of: a) stacking a plurality of fibre reinforcement layers on the rigid mould part forming a fibre reinforcement stack, b) providing at least one flow-enhancing mat (70) in the fibre reinforcement stack, c) sealing a second mould part, e.g. a vacuum bag, against the rigid mould part to form the mould cavity, d) optionally evacuating the mould cavity, e) supplying a resin to the mould cavity, and f) curing or hardening the resin in order to form the wind turbine blade part, wherein the at least one flow- enhancing mat has a longitudinal direction with a longitudinal extent between a first longitudinal end and a second longitudinal end, and a transverse direction with transverse extent between a first side and a second side. The flow-enhancing mat comprises fibre rovings (72) arranged in parallel in a warp direction, and a plurality of individual monofilaments (73) that are arranged with a mutual inter-filament distance and oriented in a weft direction.

公开(公告)号：WO2021219755A1

公开(公告)日：2021-11-04

申请号：PCT/EP2021/061190

申请日：2021-04-28

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

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

IPC: B29C70/24 ,  B29C70/88 ,  B29C70/12 ,  B29D99/00 ,  B29C70/52 ,  B29C70/08 ,  B29C70/44 ,  B29C70/54 ,  F03D1/06 ,  B29C70/00 ,  B32B5/02 ,  B32B5/06 ,  B32B5/26 ,  B32B7/02 ,  B32B7/12

Abstract: The present invention relates to an interlayer sheet (20) for a spar cap (10) comprising: a first fibre layer (30) comprising a first plurality of fibres, having a first upper fibre surface (31) and a first lower fibre surface (32), a second fibre layer (40) comprising a second plurality of fibres, having a second upper fibre surface (41) and a second lower fibre surface (42). The first fibre layer (30) is arranged on top of the second fibre layer (40), such that the first lower fibre surface (32) is in contact with the second upper fibre surface (41). The first fibre layer (30) is of a different characteristic than the second fibre layer (40). Furthermore, the present invention relates to a spar cap (10) for a wind turbine blade, comprising a plurality of pre-cured fibre-reinforced elements including at least a first pre-cured fibre-reinforced element (60) and a second pre-cured fibre-reinforced element (70);