公开(公告)号：US20240001632A1

公开(公告)日：2024-01-04

申请号：US18039315

申请日：2021-11-30

Applicant: LM WIND POWER A/S

Inventor： Maria ARIAS

IPC: B29C70/54 ,  B29C70/44 ,  B29C33/30 ,  B29D99/00

CPC classification number: B29C70/541 ,  B29C70/443 ,  B29C33/306 ,  B29D99/0028 ,  B29L2031/085

Abstract: The present invention relates to a method of manufacturing a fibre-reinforced spar cap (41) for a wind turbine. The method comprises the steps of providing a mould (62), and fastening a first guide member (64) and a second guide member (66) to the mould for providing a moulding cavity (68) in between the first and second guide members. A fibre material can be arranged within the moulding cavity, such that a first gap (72) is provided between the fibre material and the first guide member, and a second gap (74) is provided between the fibre material and second guide member. First and second inserts (78, 80) are inserted into the gap prior to resin infusion.

公开(公告)号：US20230392577A1

公开(公告)日：2023-12-07

申请号：US18032939

申请日：2021-11-19

Applicant: LM WIND POWER A/S

Inventor： Jelmer CNOSSEN ,  Afroz AKHTAR ,  Rajkumar SIVANANTHAM ,  Christian Frank ANDERSEN

IPC: F03D1/06

CPC classification number: F03D1/0681 ,  F05B2280/6013 ,  F05B2260/964

Abstract: A wind turbine blade comprising a plurality of spar components extending along the longitudinal axis and providing the main bending stiffness of the wind turbine blade a major principal axis defining a structural pitch angle of at least 1° with respect to a chord line, and including: one or more suction-side spar caps each having a centre line; one or more pressure-side spar caps each having a centre line; and one or more shear webs distributed around a central shear web line and at least one of which being connected to first spar caps, wherein at least one suction-side spar cap centre lines is arranged with a first chordwise distance to the central shear web line, and at least one pressure-side spar cap centre lines is arranged with a second, different, chordwise distance to the central shear web line.

公开(公告)号：US11794379B2

公开(公告)日：2023-10-24

申请号：US17786184

申请日：2021-03-16

Applicant: LM WIND POWER A/S

Inventor： Maria De L. M. Arias ,  Rune Brøgger Hahn ,  Ivan Kaab Mosegaard

IPC: B29C33/26 ,  B29D99/00 ,  B29C33/30 ,  B29L31/08

CPC classification number: B29C33/26 ,  B29D99/0028 ,  B29C33/306 ,  B29L2031/085

Abstract: A turning system for turning wind turbine blade shell part carriers between an open position and a closed position about a turning axis, comprising:



a lower blade shell part carrier having a support surface for receiving and supporting a lower wind turbine blade part;
an upper blade shell part carrier and having a support surface for receiving and supporting an upper wind turbine blade part; and
at least one turning device each including:

a lower hinge element, such as a beam, arranged under the support surface of the lower blade shell part carrier; and
a turning hinge having a lower hinge part attached to the respective lower hinge element, an upper hinge part attached to the upper blade shell part carrier, and an actuator configured for turning the lower and upper hinge parts relative to each other about the turning axis.

公开(公告)号：US20230323855A1

公开(公告)日：2023-10-12

申请号：US18043183

申请日：2021-08-31

Applicant: LM Wind Power A/S

Inventor： Graham Andress Aldinger ,  Scott Jacob Huth ,  Rohit Agarwal ,  Amir Riahi ,  Andrew Mitchell Rodwell ,  Thomas Merzhaeuser

IPC: F03D1/06

CPC classification number: F03D1/0683 ,  F05B2280/6003 ,  F05B2230/60

Abstract: A method of joining first and second blade components of a rotor blade of a wind turbine includes arranging the first blade component and the second blade component together at an interface. The first and second blade components are formed of different materials having different stiffnesses. The method further includes providing at least one gap at the interface of the blade components. Further, the method includes securing the blade components together by at least partially filling the gap with at least one filler material. Moreover, the method includes further securing the blade components together via an infusion process, wherein, during the infusion process, additional filler material further fills the gap or covers at least a portion of the at least one filler material. In addition, the method includes allowing the filler material(s) to cure. Thus, upon curing, the filler material(s) is configured to smoothly transition a load between the different materials of the blade components, thereby limiting an associated stress at the interface.

公开(公告)号：US20230296075A1

公开(公告)日：2023-09-21

申请号：US18116180

申请日：2023-03-01

Applicant: LM WIND POWER A/S ,  LM WIND POWER (SPAIN) S.A.

Inventor： Michael Wenani NIELSEN ,  Diego VIDAL REBOLLAL

IPC: F03D1/06 ,  F03D80/00

CPC classification number: F03D1/0658 ,  F03D80/00 ,  F05B2240/57 ,  F05B2260/30 ,  F05B2260/64

Abstract: The present disclosure relates to fastener assemblies (400) for a wind turbine blade (22) to rotor hub (20) connection, wherein the fastener assembly (400) comprises a fastener (401) and one or more sleeves (410) configured to absorb the ingress of liquid into a blade root insert (220). The present disclosure also relates to wind turbine hub assemblies (1000) and associated methods (700).

公开(公告)号：US20230167800A1

公开(公告)日：2023-06-01

申请号：US17921684

申请日：2021-04-28

Applicant: LM Wind Power A/S

Inventor： Graham Andress Aldinger

IPC: F03D1/06 ,  F03D13/10

CPC classification number: F03D1/0675 ,  F03D13/10 ,  F05B2230/60 ,  F05B2240/302

Abstract: The present invention relates to a wind turbine blade with an access window extending through the blade. A cover member for covering the access window is provided, such that a first end of the cover member is pivotally connected to the outer surface of the blade and a second end of the cover member is releasably fastened to the outer surface of the blade.

公开(公告)号：US20230166472A1

公开(公告)日：2023-06-01

申请号：US17921163

申请日：2020-05-25

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

Inventor： Kristen HANRAHAN ,  Tanner KNOBLOCK ,  Justin HUNTER ,  Jasper KNOBLOCK ,  Jeppe JØRGENSEN

IPC: B29D99/00 ,  B29C70/52 ,  B29C70/86 ,  F03D1/06

CPC classification number: B29D99/0028 ,  B29C70/523 ,  B29C70/86 ,  F03D1/0675 ,  F05B2230/20

Abstract: A method for manufacturing a wind turbine blade, comprising the steps of:
providing one or more individual pultrusions including a first tapering end with a tapering end face terminating in a taper tip, and
arranging the one or more pultrusions in one layer or more stacked layers including at least a bottom layer on a first assembly surface at a first assembly station to provide a pultrusion arrangement extending in a longitudinal direction between a pultrusion root end and a pultrusion tip end, wherein the first tapering end of the one or more pultrusions form the pultrusion root end or the pultrusion tip end of the pultrusion arrangement.

公开(公告)号：US20230166454A1

公开(公告)日：2023-06-01

申请号：US17921691

申请日：2020-04-30

Applicant: Collin McKee Sheppard ,  LM Wind Power A/S

Inventor： Collin McKee Sheppard ,  James Robert Tobin ,  Huijuan Dai ,  Boobalan Ayyasamy

IPC: B29C64/393 ,  B29C64/209 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00

CPC classification number: B29C64/393 ,  B29C64/209 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29L2031/085

Abstract: A system for manufacturing a blade component of a rotor blade of a wind turbine includes a blade mold of the rotor blade, at least one blade skin arranged atop the blade mold, and a computer numeric control (CNC) device comprising a printer head and a scanning device. The printer head is configured for printing and depositing a material onto the at least one blade skin to form the blade component. The scanning device includes a processor and a scanner communicatively coupled to the processor. The scanning device is for determining a profile of the at least one blade skin atop the blade mold as the blade component is being printed and deposited layer by layer such that the printer head is automatically adjusted to compensate for changes in the profile in at least one of a horizontal direction or a vertical direction due to at least one of thermal expansion of the blade mold, thickness variations of fibers of the at least one blade skin, movement of the at least one blade skin atop the blade mold, or material shrinkages on previous printed layers.

公开(公告)号：US20230160797A1

公开(公告)日：2023-05-25

申请号：US17916997

申请日：2021-05-19

Applicant: LM WIND POWER A/S ,  LM WIND POWER R&D (HOLLAND) B.V.

Inventor： Francesco ATTANASIO ,  Francisco Lahuerta CALAHORRA

IPC: G01N3/20 ,  G01N3/08 ,  G01M5/00

CPC classification number: G01N3/20 ,  G01N3/08 ,  G01M5/0016 ,  G01M5/0058 ,  G01N2203/0023 ,  G01N2203/0264 ,  G01N2203/0019 ,  G01N2203/0028

Abstract: Disclosed is a test rig and a method for mechanical load testing of a specimen extending along a longitudinal axis from a first specimen end to a second specimen end and comprising a composite material extending along the longitudinal axis from a first composite end to a second composite end and a primary elongate component extending along the longitudinal axis from a first primary component end to a second primary component end, the first primary component end being the first specimen end, and wherein the composite material encapsulates the primary elongate component along a first interface region extending along the longitudinal axis from the second primary component end to the first composite end. The method comprises applying a load to the specimen resulting in an axial load component and a bending moment being imposed to the specimen.

公开(公告)号：US20230150173A1

公开(公告)日：2023-05-18

申请号：US17912672

申请日：2021-03-19

Applicant: LM WIND POWER A/S

Inventor： Kristian Lehmann MADSEN

IPC: B29C37/00 ,  B01D19/00

CPC classification number: B29C37/006 ,  B01D19/0036 ,  B29B2013/005

Abstract: Disclosed are processes and systems for degassing liquid resin. Resin is provided at a resin inlet and pumped into a first duct using a resin pump to achieve a first absolute pressure of at least 1.6 bar in the first duct; the resin pump and/or a flow control valve are configured to achieve a first pressure drop across the flow control valve of at least 1.5 bar; a second duct communicates the resin from the flow control valve to a storage tank; a gas evacuation system maintains a pressure in the storage tank below 100 mbar at least partly concurrently with pumping resin into the first duct.