公开(公告)号：US12053939B2

公开(公告)日：2024-08-06

申请号：US17431355

申请日：2020-02-21

Applicant: Blade Dynamics Limited ,  LM Wind Power A/S

Inventor： Michael Lund-Laverick ,  Rama Razeghi ,  Klavs Jespersen

IPC: B29C70/32 ,  B29C33/34 ,  B29C70/44 ,  B29D99/00 ,  B29L31/08

CPC classification number: B29C70/44 ,  B29C33/34 ,  B29D99/0028 ,  B29L2031/085

Abstract: Disclosed is a mould tool for manufacturing a plurality of pre-form laminates for a laminate of a wind turbine blade, the mould tool comprising a frame, a first mould surface configured for receiving a first fabric, a second mould surface configured for receiving a second fabric, and a heating arrangement configured to heat the first mould surface and the second mould surface. The mould tool is configured to turn between a first configuration and a second configuration, wherein in the first configuration the first mould surface is facing substantially upwards, and in the second configuration the second mould surface is facing substantially upwards.

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：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：US12138866B2

公开(公告)日：2024-11-12

申请号：US18037303

申请日：2021-11-16

Applicant: LM WIND POWER A/S

Inventor： Klavs Jespersen ,  Lars Nielsen

IPC: F03D80/30 ,  B29C70/30 ,  B29C70/86 ,  B29C70/88 ,  F03D1/06 ,  B29L31/08

Abstract: The present invention relates to a method of manufacturing a wind turbine blade (10), comprising the steps of placing a fibre lay-up including one or more fibre layers on the mould surface of a blade mould (60), arranging a load-bearing structure (45) and a core member (62) on the fibre lay-up such that the core member (62) is arranged between the load-bearing structure (45) and the leading edge (18) and/or between the load-bearing structure (45) and the trailing edge (20), and infusing resin into the blade mould to impregnate the fibre lay-up. The core member (62) comprises a first hole (64) with a circular cross section, a first cylindrical insert (70) rotatably arranged within the first hole (64) of the core member (62), the first cylindrical insert (70) having a central axis (71). A recess (80) is formed in the first cylindrical insert (70), wherein the recess (80) is arranged eccentrically with respect to the central axis (71) of the first cylindrical insert (70).

公开(公告)号：US11865744B2

公开(公告)日：2024-01-09

申请号：US17610533

申请日：2020-05-13

Applicant: LM Wind Power A/S

Inventor： Ya Min Jørgensen ,  Lars Nielsen ,  Klavs Jespersen

IPC: B29C70/88 ,  B29C70/54 ,  B29C70/34 ,  G01B7/06 ,  B29K105/20 ,  B29K705/02 ,  B29K705/10 ,  B29L31/08

CPC classification number: B29C70/885 ,  B29C70/342 ,  B29C70/54 ,  G01B7/10 ,  B29K2105/206 ,  B29K2705/02 ,  B29K2705/10 ,  B29K2995/0005 ,  B29L2031/085

Abstract: The present invention relates to a method for manufacturing a wind turbine blade part. The method comprises providing one or more wind turbine blade components including a wind turbine blade component comprising a fibre material element, an electrically conductive element, a magnetic field generator for generating an Eddy current in the electrically conductive element; arranging the electrically conductive element, the magnetic field generator, and the fibre material element such that at least a part of the fibre material element is positioned between the electrically conductive element and the magnetic field generator; generating an Eddy current in the electrically conductive element using the magnetic field generator; generating, using a magnetic sensor, a signal representing a magnetic field induced by the generated Eddy current, and forming the wind turbine blade part by assembling the wind turbine blade components.

公开(公告)号：US11794443B2

公开(公告)日：2023-10-24

申请号：US17623982

申请日：2020-07-24

Applicant: LM WIND POWER A/S

Inventor： Jens Zangenberg Hansen ,  Michael Scholarth Koefoed ,  Klavs Jespersen ,  Lars Nielsen ,  Morten Rask-Nielsen

IPC: B32B5/06 ,  B32B5/12 ,  B32B5/26 ,  B32B37/12 ,  D04B21/16

CPC classification number: B32B5/073 ,  B32B5/12 ,  B32B5/26 ,  B32B37/12 ,  D04B21/165 ,  B32B2250/03 ,  B32B2250/20 ,  B32B2250/40 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2305/10 ,  B32B2305/22 ,  B32B2313/04 ,  B32B2315/08 ,  B32B2603/00

Abstract: A fabric and a method for making the same. The fabric includes a layer of unidirectionally oriented carbon fibre filaments sandwiched between a first layer of glass fibre rovings and a second layer of glass fibre rovings. The first layer of glass fibre rovings and the second layer of glass fibre rovings are linked by a connecting material.

公开(公告)号：US11486350B2

公开(公告)日：2022-11-01

申请号：US17281019

申请日：2019-10-23

Applicant: LM WIND POWER A/S

Inventor： Klavs Jespersen ,  Lars Nielsen

IPC: F03D1/06 ,  F03D13/10

Abstract: The present invention relates to wind turbine blade and a method of manufacturing the wind turbine blade. An aerodynamic shell is provided with a recess (70) at its inner surface, the recess (70) extending with-in the shell along a spanwise direction of the blade. A first region of the recess (70) has a first width and a second region of the recess (70) has a second width exceeding the first width. A transition region is provided between the first region and the second region of the re-cess. A first and a second spar cap (80, 82) are arranged within the shell.