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公开(公告)号：US20230072647A1
公开(公告)日：2023-03-09
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
Abstract: The present invention relates to an interlayer sheet for a spar cap comprising: a first fibre layer comprising a first plurality of fibres, having a first upper fibre surface and a first lower fibre surface, a second fibre layer comprising a second plurality of fibres, having 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. Furthermore, the present invention relates to a spar cap for a wind turbine blade, comprising a plurality of pre-cured fibre-reinforced elements including at least a first pre-cured fibre-reinforced element and a second pre-cured fibre-reinforced element; and a number of interlayer sheets arranged between the plurality of pre-cured fibre-reinforced elements.
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公开(公告)号：US20230071090A1
公开(公告)日：2023-03-09
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
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.
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公开(公告)号：US20230041394A1
公开(公告)日：2023-02-09
申请号：US17791710
申请日：2021-02-18
Applicant: LM WIND POWER A/S
Inventor： Boas EIRIKSSON , Mathilde AUBRION
Abstract: Disclosed a wind turbine blade comprising a main laminate and a method for manufacturing a main laminate for a wind turbine blade. The wind turbine blade extends in a longitudinal direction from a root to a tip and comprising a pressure side, a suction side and a chord line extending between a leading edge and a trailing edge. Particularly, lightning protection of such main laminate is disclosed.
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公开(公告)号：US20230016436A1
公开(公告)日：2023-01-19
申请号：US17786055
申请日：2020-04-15
Applicant: LM WIND POWER A/S , BLADE DYNAMICS LIMITED
Inventor： Klavs JESPERSEN , Rama RAZEGHI , Dylan REDMOND-GRAY
Abstract: The present invention relates to a reinforcing structure, such as a reinforcing structure for reinforcing a wind turbine blade, comprising: a first composite element layer comprising at least two carbon fibre reinforced composite elements; a second composite element layer comprising one or more carbon fibre reinforced composite elements; an interlayer sandwiched at least partly between the first and the second composite element layer, the interlayer comprising an electrically conductive portion and a non-conductive portion surrounding the conductive portion, the conductive portion abutting exactly two of the carbon fibre reinforced composite elements comprised in the first composite element layer. A method for manufacturing such a structure is also provided.
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公开(公告)号：US20220402171A1
公开(公告)日：2022-12-22
申请号：US17776422
申请日：2020-11-13
Applicant: LM WIND POWER A/S
Inventor： Jesper MØLLER
Abstract: Disclosed are a mould system and a clamping tong for securing a mould item part in a mould of a mould system. The clamping tong comprises: a primary tong segment comprising a primary clamping surface for applying clamping pressure on a clamping portion of a mould item part; a secondary tong segment coupled to the primary tong segment and comprising a secondary clamping surface for applying clamping pressure on a clamping portion of the mould. The clamping tong being configured to change between a clamping state and a release state, wherein the distance between the primary clamping surface and the secondary clamping surface in the clamping state is shorter than the distance between the primary clamping surface and the secondary clamping surface in the release state.
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Patent Agency Ranking
公开(公告)号：US20220356865A1
公开(公告)日：2022-11-10
申请号：US17769786
申请日：2021-01-19
Applicant: LM WIND POWER A/S
Inventor： Thomas BUHL , Jesper MADSEN , Jordy HERTEL NILSSON VAN KALKEN
Abstract: A blade damping device for damping vibrations during standstill of a wind turbine blade, wherein the blade damping device is adapted to be detachably attached to the pressure side and/or the suction side of the airfoil region of the wind turbine blade, the blade damping device comprising a base plate adapted to conform to the exterior shape of the wind turbine blade when the blade damping device is attached to the wind turbine blade, and a spoiler protruding from the base plate to a spoiler height along a height direction and having a spoiler length along a length direction, the height direction being adapted to extend outwardly from the wind turbine blade, wherein the spoiler height is adapted to be at least 20% of a chord line located at two thirds of the blade length along the longitudinal axis from the root end of the wind turbine blade.
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公开(公告)号：US20220325693A1
公开(公告)日：2022-10-13
申请号：US17717676
申请日：2022-04-11
Applicant: LM Wind Power A/S
Inventor： John Korsgaard , Jelmer Cnossen
IPC: F03D1/06
Abstract: An extendable wind turbine blade for being extended in length during operation thereof, the wind turbine blade having an exterior surface with a root region and an airfoil region and comprising a first blade segment including a first portion of the exterior surface, a second blade segment including a second portion of the exterior surface, and a connection mechanism connecting the blade segments, and being configured to bring the wind turbine blade to a retracted state, in which the portions of the exterior surface are flush and adjoining, when the wind turbine blade operates above a threshold rotational speed and to bring the wind turbine blade to an extended state, in which the portions of the exterior surface are disconnected and the blade length is at least 101% of the blade length in the retracted state, when the wind turbine blade operates below the threshold rotational speed.
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公开(公告)号：US20220325692A1
公开(公告)日：2022-10-13
申请号：US17620500
申请日：2020-06-16
Applicant: Blade Dynamics Limited , LM Wind Power A/S
Inventor： Manish MUKHERJEE , Tobias BERGNER , Laszlo BARTHA
Abstract: A shell core (1) configured for being incorporated in a shell of a fiber reinforced polymer composite structure wherein: the core has a first surface (2) and an opposite second surface (3), a first groove (4) is formed in the first surface (2) and divides the core into a first core part (5) and a second core part (6), the first groove (4) is defined by two opposing side walls (7a,7b) and a bottom (8), the distance T1 between the bottom (8) of the groove (4) and the second surface (3) of the core is of such a size that the core is flexible/bendable along the first groove, and the opposing walls (7a,7b) converge towards the bottom (8) forming an angle A1 of at least 45° with each other.
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公开(公告)号：US20220152964A1
公开(公告)日：2022-05-19
申请号：US17442320
申请日：2020-03-27
Applicant: LM WIND POWER A/S
Inventor： Michael LUND-LAVERICK , Klavs JESPERSEN , Kristian Lehmann MADSEN
Abstract: A method for manufacturing a reinforced shell part for a wind turbine blade includes providing a shell having an inner surface, optionally arranging a plurality of fibre layers on the inner surface of the shell to form a base part of a reinforced section, providing a preform of a first inlay, arranging the preform of the first inlay on the inner surface of the shell and/or on the base part of the reinforced section, providing a preform of a second inlay, arranging the preform of the second inlay on the inner surface of the first shell part and/or on the base part of the reinforced section, and arranging at least one pultrusion layer on the preform of the first inlay, the preform of the second inlay, and the inner surface of the shell and/or the base part of the reinforced section.
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公开(公告)号：US09073273B2
公开(公告)日：2015-07-07
申请号：US13524893
申请日：2012-06-15
Applicant: Hanumantha Jois Guru Prasad
Inventor： Hanumantha Jois Guru Prasad
CPC classification number: B29C70/547 , B29C70/443 , B29C70/48 , B29L2031/082 , Y02E10/721 , Y10T428/24504
Abstract: A plurality of fiber layers is stacked to form a fiber insertion extending in a longitudinal direction of the shell part to be manufactured, whereby a core element having a tapered edge section is arranged along the fiber insertion. The fiber layers are stacked so that the tapered edge section of the core element is wedged into the fiber insertion. The core element is composed by a first and a second core part that are arranged along each other. The first core part forms at least part of the tapered edge section of the core element. The surface of the first core part has a higher permeability to liquid polymer than that of the surface of the second core part so that, during infusion, liquid polymer penetrates the surface of the first core part more readily than it penetrates the surface of the second core part.
Abstract translation: 堆叠多个纤维层以形成沿待制造的外壳部分的纵向方向延伸的纤维插入物，由此具有锥形边缘部分的芯元件沿纤维插入布置。 纤维层被堆叠，使得芯元件的锥形边缘部分楔入光纤插入中。 芯元件由彼此排列的第一和第二芯部构成。 第一芯部形成芯元件的锥形边缘部分的至少一部分。 第一核心部分的表面对液体聚合物的渗透性高于第二核心部分的表面的渗透性，使得在注入期间，液体聚合物比其渗透第二核心部分的表面更容易地渗入第一核心部分的表面 核心部分。
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