公开(公告)号：US12005655B2

公开(公告)日：2024-06-11

申请号：US17801363

申请日：2020-04-07

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

Inventor： Rama Razeghi ,  Klavs Jespersen ,  Kristen Hanrahan

IPC: B29C70/52 ,  B29C70/42 ,  B29L31/08 ,  F03D1/06 ,  B29K307/04 ,  B29K309/08

CPC classification number: B29C70/52 ,  B29C70/42 ,  F03D1/0633 ,  F03D1/0658 ,  F03D1/0675 ,  F03D1/0679 ,  B29K2307/04 ,  B29K2309/08 ,  B29L2031/085 ,  F05B2280/6003

Abstract: A main laminate forming a load carrying structure for a wind turbine blade, the main laminate extending in a spanwise direction from a proximal end through a transition region to a distal end, wherein the main laminate comprises:



a top side, a bottom side, and a thickness direction extending between the top side and the bottom side;
a pultrusion portion including a bottom pultrusion element extending to a transition end of a transition portion located in the transition region of the main laminate;
a plurality of stacked fibre-reinforced elements including bottom and top fibre-reinforced elements extending to a transition end of a transition portion located in the transition region,

wherein the pultrusion portion and the plurality of fibre-reinforced elements are connected by a joint in the transition region of the main laminate.

公开(公告)号：US20240181733A1

公开(公告)日：2024-06-06

申请号：US18553668

申请日：2022-04-01

Applicant: Paul HAYDEN ,  Huijuan DAI ,  Stefaan Guido VAN NIEUWENHOVE ,  Ryan Eric VOGEL ,  Mark HANCOCK ,  Torben Krogsdal JACOBSEN ,  LM Wind Power A/S

Inventor： Paul Hayden ,  Huijuan Dai ,  Stefaan Guido Van Nieuwenhove ,  Ryan Eric Vogel ,  Mark Hancock ,  Torben Krogsdal Jacobsen

IPC: B29D99/00 ,  B29B17/00 ,  B29C70/06 ,  B29C70/46 ,  B29C70/54 ,  B29L31/08

CPC classification number: B29D99/0028 ,  B29B17/0005 ,  B29C70/06 ,  B29C70/46 ,  B29C70/545 ,  B29L2031/085

Abstract: A method for manufacturing an article includes providing a plurality of flat sheets of fiber-reinforced polymer material. The method also includes forming the plurality of flat sheets of the fiber-reinforced polymer material into a plurality of curved sheets of the fiber-reinforced polymer material. Further, the method includes assembling the plurality of curved sheets of the fiber-reinforced polymer material in a tooling device to form an outer shape of the article. Moreover, the method includes securing each of the plurality of curved sheets of the fiber-reinforced polymer material together to form the article.

公开(公告)号：US20240181724A1

公开(公告)日：2024-06-06

申请号：US18073729

申请日：2022-12-02

Applicant: LM Wind Power A/S

Inventor： Tomas Muchenik Cena ,  Mark Hancock ,  Peter Anthony Broome

IPC: B29C70/44 ,  F03D1/06

CPC classification number: B29C70/44 ,  F03D1/0675 ,  B29L2031/085 ,  F05B2220/30 ,  F05B2230/23

Abstract: A method for joining rotor blade segments of a rotor blade includes placing a first blade segment in an assembly fixture. The assembly fixture has an outer carrier and at least one bladder arranged with the outer carrier. The first blade segment has an adhesive applied at one or more locations. The method also includes arranging the first blade segment with a second blade segment at at least one joint using the assembly fixture with the adhesive positioned at the at least one joint. Further, the method includes inflating the at least one bladder to provide pressure to the at least one joint, wherein the pressure causes the adhesive to displace between the first and second blade segments at the at least one joint, thereby securing the first and second blade segments together at the at least one joint. Moreover, the method includes maintaining the pressure via the at least one inflated bladder to allow the adhesive to cure, thereby securing the first and second blade segments together.

公开(公告)号：US20240181723A1

公开(公告)日：2024-06-06

申请号：US18553660

申请日：2022-03-30

Applicant: LM Wind Power A/S

Inventor： Paul Hayden ,  Huijuan Dai ,  Ryan Eric Vogel ,  Fritz Andres Campo ,  Raphael Sajous

IPC: B29C70/42 ,  B29K105/26 ,  B29L31/08

CPC classification number: B29C70/42 ,  B29K2105/26 ,  B29L2031/08

Abstract: A method for forming a structural tile for use in a composite panel includes providing a base plate of a compression mold assembly. The method also includes placing a grid structure mold of the compression mold assembly atop the base plate. The grid structure mold defines a cavity having a desired shape for a grid structure. Further, the method includes filling the cavity of the grid structure mold with a plurality of fragments of recycled fiber reinforced polymer material. Moreover, the method includes placing a cover plate of the compression mold assembly atop the grid structure mold to apply pressure to the grid structure mold. The method also includes applying heat to the cover plate to heat the plurality of fragments of recycled fiber reinforced polymer material such that the recycled fiber reinforced polymer material melts within the cavity. In addition, the method includes allowing the melted recycled fiber reinforced polymer material to cure to form the structural tile.

公开(公告)号：US11982259B2

公开(公告)日：2024-05-14

申请号：US17295261

申请日：2019-11-20

Applicant: LM Wind Power A/S

Inventor： Lars Bo Hansen

IPC: F03D80/30

CPC classification number: F03D80/30 ,  F05B2240/30 ,  F05B2280/2006

Abstract: The invention relates to a wind turbine blade being a shell body made of a composite material and having a root end and a tip end, an outer surface, a pressure side and a suction side, a trailing edge and a leading edge, and additionally a lightning protection system. The lightning protection system comprising at least one lightning receptor provided with an outer surface arranged freely accessible in, on or at the outer surface of the blade at the tip end of the blade and a lightning conductor made of electrically conductive material extending within the shell body along substantially the entire longitudinal direction of the blade. The lightning receptor and the lightning conductor are electrically connected by means of a connection area. At least a part of the outer surface, optionally the whole of the outer surface of the receptor being freely accessible is formed of carbon such as graphite.

公开(公告)号：US20240102453A1

公开(公告)日：2024-03-28

申请号：US18266794

申请日：2021-12-30

Applicant: LM WIND POWER A/S

Inventor： Lars Bo HANSEN ,  Mahdi BAVILOLIAIE

IPC: F03D80/30 ,  B29C70/88 ,  B29D99/00 ,  F03D1/06

CPC classification number: F03D80/301 ,  B29C70/88 ,  B29D99/0028 ,  F03D1/0681 ,  B29K2309/08 ,  B29K2995/0005

Abstract: The present invention relates to a method of manufacturing a wind turbine blade shell component (38), the method comprising the steps of providing a plurality of abraded pultrusion plates (64) having abraded edges, arranging the abraded pultrusion plates (64) in layers on blade shell material (89) in a mould (77) for the blade shell component, the layers being separated by electrically conductive interlayers, and bonding the abraded pultrusion plates (64) with the blade shell material to form the blade shell component, wherein each pultrusion plate (64) is formed of a pultrusion fibre material comprising glass fibres and carbon fibres. The invention also relates to a reinforcing structure for a wind turbine blade, the reinforcing structure comprising a plurality of pultrusion plates according to the present invention.

公开(公告)号：US20240068438A1

公开(公告)日：2024-02-29

申请号：US18269913

申请日：2021-12-21

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

Inventor： Manish MUKHERJEE ,  Lars Bo HANSEN ,  Michael Drachmann HAAG

IPC: F03D1/06 ,  F03D80/30

CPC classification number: F03D1/0688 ,  F03D80/301 ,  F05B2230/232 ,  F05B2230/60

Abstract: The present invention relates to a protective cap for protecting a leading edge of a wind turbine blade. The protective cap comprises first and second attachment portions for attaching the protective cap to a suction side and a pressure side of the wind turbine blade and comprises a first metal layer and a second metal layer, the first and second metal layers extending between the first and the second attachment portions, and the first metal layer and the second metal layer are at least partly spaced apart. A wind turbine blade with a protective cap is also provided. Methods for manufacturing a protective cap and a wind turbine blade with a protective cap are also provided.

公开(公告)号：US11884029B2

公开(公告)日：2024-01-30

申请号：US17427335

申请日：2020-02-07

Applicant: LM Wind Power A/S

Inventor： Lars Nielsen ,  Klavs Jespersen

IPC: B29C70/48 ,  B29C70/54 ,  B29C70/44 ,  B29D99/00 ,  B29L31/08

CPC classification number: B29C70/443 ,  B29C70/547 ,  B29D99/0028 ,  B29L2031/082

Abstract: The present invention relates to a method of manufacturing a wind turbine blade using a two-step curing process, wherein the second curing is performed in the presence of a resin flow medium (76) comprising a curing inhibitor.

公开(公告)号：US20240025015A1

公开(公告)日：2024-01-25

申请号：US18265512

申请日：2021-12-15

Applicant: LM WIND POWER A/S

Inventor： John ARSENEAUX

IPC: B24B55/03 ,  B24B21/00

CPC classification number: B24B55/03 ,  B24B21/006

Abstract: A scarfing machine includes a base and a pair of platens adjustably positioned on the base. The pair of platens are configured as an upper platen and a lower platen such that the upper platen is fixed to the base and the lower platen is adjustably positioned on the base, to receive and support a member for scarfing. Also, at least one platen of the pair of platens is hollow and is defined with an inlet port and an outlet port. The scarfing machine further includes a scarfing tool, extending from either side and along a length of at least one of the pair of platens, to scarf the member supported between the pair of platens. The scarfing machine also includes a cooling circuit, fluidly connectable to the inlet port and the outlet port of the at least one platen of the pair of platens.

公开(公告)号：US20230400009A1

公开(公告)日：2023-12-14

申请号：US18033145

申请日：2021-11-25

Applicant: LM WIND POWER A/S

Inventor： Jeppe JØRGENSEN ,  Klavs JESPERSEN ,  Ole NIELSEN

IPC: F03D1/06 ,  B29D99/00 ,  B29C70/48 ,  B29C70/08 ,  B29C70/54 ,  B29C70/88 ,  B29C70/22

CPC classification number: F03D1/0681 ,  B29D99/0028 ,  B29C70/48 ,  B29C70/08 ,  B29C70/547 ,  B29C70/882 ,  B29C70/228 ,  B29K2105/0809

Abstract: A flow-enhancing fabric extends in a longitudinal direction and in a transverse direction. The fabric includes a plurality of fibre layers including a first fibre layer and a second fibre layer arranged upon each other, the first fibre layer has a first plurality of fibre bundles oriented in parallel in a first fibre direction and has a plurality of first glass fibre bundles and a number of first carbon fibre bundles. The second fibre layer has a second plurality of fibre bundles oriented in parallel in a second fibre direction different from the first direction and has a plurality of second glass fibre bundles and a number of second carbon fibre bundles. At least a number of first carbon fibre bundles intersect and contact a number of second carbon fibre bundles. The fabric has a plurality of monofilaments arranged between the first and second fibre layer along the transverse direction.