公开(公告)号：US12247542B2

公开(公告)日：2025-03-11

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 ,  B29C70/00 ,  B29C70/52 ,  B29C70/54 ,  B32B5/06 ,  B32B27/08 ,  B32B27/20

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：US12202214B2

公开(公告)日：2025-01-21

申请号：US17911927

申请日：2020-04-28

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

Inventor： Mahdi Baviloliaie ,  Jeppe Jørgensen ,  Rama Razeghi ,  Michael Koefoed ,  Jens Zangenberg Hansen

IPC: B29C70/24 ,  B29C70/88 ,  F03D1/06 ,  B29L31/08

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

公开(公告)号：US20240416595A1

公开(公告)日：2024-12-19

申请号：US18708458

申请日：2022-12-07

Applicant: LM WIND POWER A/S

Inventor： Henrik BARSLEV ,  Ton DOBBE

IPC: B29C70/24 ,  B29C65/56 ,  B29C70/42 ,  B29C70/54 ,  B29L31/08

Abstract: The present invention relates to a method of manufacturing a wind turbine rotor blade part comprising stacking a plurality of plies (70, 71, 72) to form a stack of plies (80) such that the stack of plies has at least one stepwise tapering edge (84, 85). A plurality of plastic fasteners (90) is used to interconnect the plies (70, 71, 72) by passing the plurality of plastic fasteners (90) through the stack of plies to form a stack of interconnected plies (82). The stacks of interconnected plies (82a, 82b, 82c, 82d) are arranged within the blade mold, followed by resin infusion into the one or more stacks of interconnected plies within the blade mold, and curing and/or hardening the resin in order to form the blade part.

公开(公告)号：US20240399678A1

公开(公告)日：2024-12-05

申请号：US18694808

申请日：2022-11-09

Applicant: LM Wind Power A/S

Inventor： Klavs JESPERSEN ,  Lars NIELSEN

IPC: B29C70/00 ,  B29C70/42 ,  B29L31/08 ,  F03D1/06

Abstract: A spar cap for a wind turbine blade, comprising a load-carrying structure including a primary laminate and a secondary laminate arranged with an overlap in a longitudinal axis of the spar cap, wherein the width of the secondary laminate being at least 1.1 times greater than the width of the primary laminate.

公开(公告)号：US20240391141A1

公开(公告)日：2024-11-28

申请号：US18693682

申请日：2022-09-16

Applicant: LM Wind Power A/S

Inventor： David Kallestrup

IPC: B29C33/56 ,  B29C33/00 ,  B29L31/00 ,  B29L31/08

Abstract: A method of masking a mould for moulding a wind turbine blade shell part, the method comprising the steps of: arranging a masking device in a mould so that the masking device covers the non-coating zone of the mould surface, spraying a coating onto a mould surface of the mould so that the coating is applied to a coating zone of the mould surface and prevented from being applied to a non-coating zone of the mould surface by the arrangement of the masking device, and removing the masking device from the mould so that the non-coating zone is exposed. The masking device is configured so that, upon terminating spraying of the coating at the first longitudinal boundary of the coating zone, a lip portion of the masking device is separated from the coating applied on the coating zone by a gap.

公开(公告)号：US20240384700A1

公开(公告)日：2024-11-21

申请号：US18286886

申请日：2022-05-03

Applicant: LM WIND POWER A/S

Inventor： Andreas HERRIG ,  Trevor Howard WOOD ,  Guannan WANG

IPC: F03D1/06

Abstract: A wind turbine blade (10) comprising a pressure side (24) and a suction side (26), a leading edge (18) and a trailing edge (20). At least a portion of the blade (10) located in a trailing edge region (142) at or adjacent to the trailing edge (20) is a noise reducing portion defining an exposed surface and comprising a plurality of sound reducing or sound absorbing acoustic resonators (58), each of the resonators (58) comprising an opening (55) in the exposed surface and a cavity (56) having a length L between the opening (55) and a bottom (57) of the cavity opposite the opening (55).

公开(公告)号：US20240360813A1

公开(公告)日：2024-10-31

申请号：US18291211

申请日：2022-07-22

Applicant: LM WIND POWER A/S

Inventor： Marc CANAL VILA ,  Jesper MADSEN

IPC: F03D1/06

CPC classification number: F03D1/0688 ,  F05B2240/303 ,  F05B2260/96

Abstract: The present disclosure relates to devices for wind turbine blades and methods for reducing vibrations in wind turbines with a rotor in standstill. A device comprises a portion configured to protrude beyond a leading edge of a wind turbine blade in a local chordwise direction. The portion configured to protrude beyond the leading edge is configured to at least partially form an air channel in front of the leading edge.

公开(公告)号：US12090723B2

公开(公告)日：2024-09-17

申请号：US18039942

申请日：2021-12-20

Applicant: LM WIND POWER A/S

Inventor： Jelmer Cnossen ,  Paul Todd

IPC: B29D99/00 ,  F03D1/06 ,  F03D80/00

CPC classification number: B29D99/0028 ,  F03D1/0675 ,  F03D1/069 ,  F03D80/005 ,  F05B2240/3042 ,  F05B2260/96

Abstract: A method for manufacturing a shell 36 and 38, is disclosed. The method includes laying one or more layers of fibres, on a surface of a mould 9 to form at least a portion of a shell half structure 36 and 38. A first panel 11 defined with noise reduction members 11a is positioned adjacent to the one or more layers of fibres on the surface of the mould 9. Further, resin is infused through the one or more layers of fiber and the first panel 11 and is subsequently cured to obtain the shell half structure 36 or 38, where the first panel 11 with noise reduction members 11a adheres to the shell half structure 36 and 38 upon curing the infused resin.

公开(公告)号：US20240295209A1

公开(公告)日：2024-09-05

申请号：US18578427

申请日：2021-07-16

Applicant: Peter Daniel SILKOWSKI ,  LM Wind Power A/S

Inventor： Peter Daniel Silkowski

IPC: F03D1/06 ,  F03D7/02

CPC classification number: F03D1/0675 ,  F03D7/022 ,  F05B2240/303 ,  F05B2240/304 ,  F05B2240/305 ,  F05B2240/307

Abstract: The present disclosure is directed to a rotor blade having a passive airflow modifying assembly to create an airflow feature along the blade, based on the instant pressure gradient around the blade during operation. The present disclosure also is directed to a rotor blade that passively channels airflow through the passive airflow modifying assembly to create an air feature that decreases the aerodynamic load, at times when the aerodynamic load experienced by the blade is bearing on the rotatable hub, and one the passively channels airflow through the passive airflow modifying assembly to create an air feature that increases the aerodynamic load, at times when the aerodynamic load is not bearing on the rotatable hub, and one that passively operates to not create an air feature, at times when the requisite pressure gradient is not met and/or when the load conditions are not an issue.

公开(公告)号：US20240271594A1

公开(公告)日：2024-08-15

申请号：US18566828

申请日：2022-06-23

Applicant: LM WIND POWER BLADES S.A.S ,  LM WIND POWER A/S

Inventor： Henrik BARSLEV ,  Morten Dall IVERSEN

IPC: F03D1/06 ,  B29C70/68 ,  B29L31/08

CPC classification number: F03D1/066 ,  B29C70/682 ,  B29L2031/085 ,  F05B2230/20 ,  F05B2260/301

Abstract: The present invention relates to a root end assembly (100) for incorporating a plurality of fastening members (74) into the root end of a wind turbine blade shell part during a moulding operation. The root end assembly (100) comprises a mounting plate (70) with a plurality of apertures (72) and a plurality of sheath members (83), each sheath member being disposed in a respective aperture of the plurality of apertures (72). Connection members (78) are received in the sheath members (83), and a plurality of said fastening members (74) are releasably attached to a respective connection member of the plurality of connection members (78) such that the fastening members (74) extend substantially normal to a first surface (77) of the mounting plate (70). The apertures (72) are dimensioned for allowing translational movement of the sheath members (83) in the respective apertures (72).