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公开(公告)号:US11028824B2
公开(公告)日:2021-06-08
申请号:US15577020
申请日:2016-05-25
Applicant: LM WP PATENT HOLDING A/S
Inventor: Jesper Hasselbalch Garm
IPC: F03D1/06
Abstract: A wind turbine blade is provided with two shell parts each at least partly made of a sandwich structure including an inner skin (76), an outer skin (74), and an intermediate core material (75, 77), wherein the shell parts are bonded together at least along their respective leading edges (18). The blade also comprises a longitudinally extending spacing section in which the respective trailing edges (58a, 58b) of the pressure side shell part and the suction side shell part are spaced apart, wherein a trailing edge shear web (45) is arranged between and connected to the sandwich structure of the suction side shell part (84, 86, 87) and the sandwich structure of the pressure side shell part (74, 76, 77).
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公开(公告)号:US10982656B2
公开(公告)日:2021-04-20
申请号:US15542773
申请日:2016-01-12
Applicant: LM WP PATENT HOLDING A/S
Inventor: Knud Møller Andersen , Ole Kiel Jensen , Richard Baker , Lars Bo Hansen
Abstract: The present invention relates to a wind turbine comprising a lightning protection system comprising a waveguide interconnecting a communication device and a signal-carrying structure. In other aspects, the present invention relates to the use of a waveguide in a lightning protection system of a wind turbine, a power splitter and its use in a lightning protection system of a wind turbine.
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公开(公告)号:US10946598B2
公开(公告)日:2021-03-16
申请号:US16306690
申请日:2017-06-13
Applicant: LM WP PATENT HOLDING A/S
Inventor: Lars Nielsen
IPC: B29C70/48 , B29C70/54 , B29C70/44 , F03D1/06 , B29D99/00 , B29L31/08 , B29K105/08 , B29K307/04
Abstract: In a method for manufacturing a wind turbine blade half shell, a preformed and cured aerodynamic blade shell member 42 of a fibre reinforced resin is provided. A primarily uniaxial fibre material 66 comprising carbon fibre is laid up on a longitudinal inner area 50 of the preformed shell member 42 and then infused with a resin by vacuum-assisted resin transfer moulding (VARTM), where a longitudinal resin inlet channel 80,82 is arranged on a first lateral side 46 and a vacuum channel 86,88 is arranged on a second lateral side 48 of the laid-up fibre material, and the resin is infused in transverse direction from the first to the second lateral side 46,48.
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公开(公告)号:US10781834B2
公开(公告)日:2020-09-22
申请号:US15184172
申请日:2016-06-16
Applicant: LM WP PATENT HOLDING A/S
Inventor: Jacobus Van Der Zee , Anders Nielsen , Kenth Skipper-Mortensen
Abstract: A transportation and storage system for at least two wind turbine blades include a first wind turbine blade and a second wind turbine blade is described. The wind turbine blades each have a root end and a tip end. The system includes a packaging system adapted to place the first wind turbine blade so that the tip end of the first wind turbine blade points in a first direction, with the tip end of the second wind turbine blade pointing in a second direction, which is substantially opposite to the first direction. The tip end of the second wind turbine blade extends beyond the root end of the first wind turbine blade, and the tip end of the first wind turbine blade extends beyond the root end of the second wind turbine blade, when the first and the second wind turbine blades are arranged in the packaging system.
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公开(公告)号:US10781790B2
公开(公告)日:2020-09-22
申请号:US16127632
申请日:2018-09-11
Applicant: LM WP PATENT HOLDING A/S
Inventor: Aanchal Saini , Utsa Majumder , Christian Munk Christensen , Christian Roed Lysemose , Peter Hansen , Finn Kjaer Nielsen
IPC: F03D1/06
Abstract: A bulkhead assembly for a wind turbine blade is described, wherein a pressure relief conduit is provided at the bulkhead to allow for pressure to equalise across the bulkhead. This helps to prevent faults or cracks in the bulkhead assembly due to differences in pressure on either side of the bulkhead. Furthermore, liquid traps and/or filter media can be accommodated in the conduit to prevent the passage of liquids or other matter across the bulkhead.
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公开(公告)号:US10662807B2
公开(公告)日:2020-05-26
申请号:US15399289
申请日:2017-01-05
Applicant: LM WP PATENT HOLDING A/S
Inventor: Casper Skovby
Abstract: Method and blade monitoring system for monitoring bending moment of a wind turbine blade. The method comprises obtaining a first sensor set signal indicative of a first bending moment at a first sensor position different from the tip end along the longitudinal axis of the wind turbine blade, and estimating a bending moment at a first estimation position along the longitudinal axis based on the first sensor set signal, wherein the first sensor position is different from the first estimation position along the longitudinal axis. The blade monitoring system comprises a processing unit and an interface connected to the processing unit, the processing unit being configured for performing the method.
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公开(公告)号:US10584684B2
公开(公告)日:2020-03-10
申请号:US16064758
申请日:2016-12-19
Applicant: LM WP PATENT HOLDING A/S
Inventor: Lars Nielsen , Klavs Jespersen
Abstract: A wind turbine blade, extending longitudinally root end to tip end, having a load carrying structure, a shell body and a lightning protection system is described. The load carrying structure is fiber-reinforced polymer in a plurality of stacked layers comprising electrically conductive fibers. The lightning protection system comprises a lightning receptor arranged freely accessible in or on the shell body and a lightning down-conductor electrically connected to the lightning receptor and is configured to be electrically connected to a ground connection. The blade further comprises a potential equalisation system providing a potential equalising connection between a number of the electrically conductive fibers of the load carrying structure and the lightning protection system. The system comprises a dissipating element made of an electrically conductive material which in turn comprises at least one transverse connector arranged to extend transverse through a thickness of the stacked fiber layers and configured to dissipate.
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公开(公告)号:US20200003186A1
公开(公告)日:2020-01-02
申请号:US16539293
申请日:2019-08-13
Applicant: LM WP PATENT HOLDING A/S
Inventor: Jacobus J VAN DER ZEE
IPC: F03D13/40 , B61D45/00 , B60P7/12 , B63B25/28 , B61D3/16 , B63B25/00 , B61D3/20 , B65D88/12 , B64D9/00 , B65D90/00 , B60P3/40 , F03D1/06
Abstract: A modular system for transporting wind turbine blades in at least two different spatial arrangements comprising two or more root end transport frames having a height H for supporting the root end, wherein H
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公开(公告)号:US10479034B2
公开(公告)日:2019-11-19
申请号:US14411728
申请日:2013-07-04
Applicant: LM WP PATENT HOLDING A/S
Inventor: Poul Erik Hansen , Harsha Tummala
Abstract: A method of manufacturing a fibre-reinforced polymer object by means of vacuum-assisted resin transfer moulding (VARTM), wherein fibre material is impregnated with liquid resin in a mould cavity comprising a rigid mould part having a mould surface defining an outer surface of the object, is described. One or more pressure sensors are connected to resin inlets of the VARTM system. A control unit is used for controlling a polymer supply unit based on measured resin pressure and is adapted to adjusting a resin flow rate, if pressure measured by the pressure sensors is below a lower threshold level or above a higher threshold level.
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公开(公告)号:US10434722B2
公开(公告)日:2019-10-08
申请号:US15207645
申请日:2016-07-12
Applicant: LM WP PATENT HOLDING A/S
Inventor: Bernard De Waal Malefijt , Rasmus Duegaard Jensen
Abstract: A blade support cradle is described, which can be used to support a section of a wind turbine blade using an array of vacuum clamps. The cradle provides a secure and reliable system for the support of a blade section during and after blade manufacture, allowing for various operations to be easily carried out on the surface of the blade section. A method for receiving a blade section in the cradle is further described. In addition, the cradle may be used as part of a blade post-moulding station in a method of manufacturing a wind turbine blade.
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