公开(公告)号：US12270382B2

公开(公告)日：2025-04-08

申请号：US18285685

申请日：2022-05-03

Applicant: LM WIND POWER A/S

Inventor： Rama Razeghi ,  Jeppe Bjørn Jørgensen ,  Paul Todd ,  Boas Eirikksson

IPC: F03D80/30 ,  F03D1/06

Abstract: A main laminate for a wind turbine blade, a wind turbine blade, and methods for manufacturing such components are disclosed. The main laminate extends along a longitudinal direction and comprising a connector element comprising a conductive mesh portion and an elongated connector part, wherein a connector part length is longer than an edge distance between the conductive mesh portion and a first edge, and wherein a secondary connector portion of the elongated connector part is bendable around a bend axis substantially parallel to the longitudinal direction.

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：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：US12044205B2

公开(公告)日：2024-07-23

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 ,  B29C70/00 ,  B29C70/08 ,  B29C70/52 ,  B32B5/02 ,  B32B5/06 ,  B32B5/12

CPC classification number: F03D1/0675 ,  B32B5/12 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2603/00 ,  F05B2240/30 ,  F05B2280/6013

Abstract: An interlayer sheet for a spar cap is provided. The interlayer sheet includes a first fibre layer having a first plurality of fibres with a first upper fibre surface and a first lower fibre surface, and a second fibre layer having comprising a second plurality of fibres with 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. A number of the interlayer sheets may be arranged between a plurality of pre-cured fibre-reinforced elements to make a spar cap for a wind turbine blade.

公开(公告)号：US20240084777A1

公开(公告)日：2024-03-14

申请号：US18463358

申请日：2023-09-08

Applicant: LM Wind Power A/S

Inventor： Dylan Robert Redmond-Gray ,  Rama Razeghi

IPC: F03D1/06 ,  B29D99/00

CPC classification number: F03D1/0633 ,  B29D99/0028 ,  B29K2105/0854

Abstract: A wind turbine blade part includes a plurality of precured fibrous elements each having a width defined between a first side and an opposite second side, a thickness defined between an upper surface and an opposite lower surface, a length defined by a first longitudinal end and a second longitudinal end, and a longitudinal direction extending between the first longitudinal end and the second longitudinal end. Each precured fibrous element includes a plurality of unidirectional fiber bundles extending substantially in the longitudinal direction of the precured fibrous element and at least one non-woven fiber strip. The plurality of unidirectional fiber bundles and the at least one non-woven fiber strip are embedded in a polymer matrix. The non-woven fiber strip is arranged between a plurality of first unidirectional fiber bundles and a plurality of second unidirectional fiber bundles of the plurality of unidirectional fiber bundles.

公开(公告)号：US20250137436A1

公开(公告)日：2025-05-01

申请号：US18683570

申请日：2022-08-18

Applicant: Kristen Hanrahan ,  LM Wind Power A/S

Inventor： Kristen Hanrahan ,  Rama Razeghi ,  Mark Hancock ,  Christopher Monk ,  William Carrillo Lokke ,  Torben Lindby ,  Eduard De Boer ,  Miguel Cabrera Lange

IPC: F03D1/06

Abstract: A wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line and connected at the chord-wise joint line by internal joint structure. Opposite spar caps in the first blade segment include a longitudinally extending center section having a constant transverse width up to the chord-wise joint line. Wing members are disposed against opposite longitudinal sides of the center section, each wing member having a head section with a constant transverse width and a flared tail section having a decreasing transverse width, the head section aligned with an end of the center section at the chord-wise joint line. The center section is formed from a first material having a first rigidity and the wing members are formed at least partially from a second material having a second lesser rigidity such that the wings members have an overall rigidity that is less than first rigidity of the center section.

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.