公开(公告)号：US10330074B2

公开(公告)日：2019-06-25

申请号：US15114469

申请日：2015-01-30

Applicant: LM WP PATENT HOLDING A/S

Inventor： Jeppe Bjorn Jorgensen ,  Casper Kildegaard ,  Klavs Jespersen

IPC: F03D1/06 ,  B29C70/08 ,  B29C70/30 ,  B29D99/00 ,  B29K31/00 ,  B29K63/00 ,  B29L31/08 ,  B29K309/08

Abstract: A wind turbine blade having a transition between two reinforcement fiber types is described. A gradual transition is provided by a combined double-tapered thickness section with a first type of reinforcement fibers sandwiched between a second type of reinforcement fibers or vice versa. The double-tapering is provided during layup and the reinforcement material is impregnated with a polymer resin and then cured or hardened so that the two types of reinforcement fibers are embedded in a common polymer matrix.

公开(公告)号：US20190078549A1

公开(公告)日：2019-03-14

申请号：US16072939

申请日：2017-02-07

Applicant: LM WP PATENT HOLDING A/S

Inventor： Jesper HØEG ,  Kim ANSHOLM RASMUSSEN ,  Casper KILDEGAARD ,  Kristian LEHMANN MADSEN

IPC: F03D1/06

Abstract: A serrated panel (70) for a wind turbine blade is disclosed. The panel (70) is configured to be attached to the trailing edge of a blade to form a plurality of serrations (71) at the trailing edge of the blade. The serrated panel comprises a base part (72) for attaching the panel (70) to the trailing edge of the blade. An exterior surface (78) of the base part comprises a corrugated surface in direction between longitudinal ends of the panel such that the exterior surface comprises crests (82) aligned substantially with midpoints of bases (80) of the serrations (71) and valleys (83) aligned substantially between serrations (71).

公开(公告)号：US20190055929A1

公开(公告)日：2019-02-21

申请号：US16078785

申请日：2017-02-21

Applicant: LM WP PATENT HOLDING A/S

Inventor： Shuai ZHANG ,  Claus BYSKOV ,  Gert FRØLUND PEDERSEN

IPC: F03D17/00 ,  F03D1/06 ,  F03D7/02

Abstract: A wind turbine blade comprising a system for monitoring the deflection of a wind turbine blade is described. The system comprises a wireless range-measurement system, having at least one wireless communication device located towards the root end of the blade and at least one wireless communication device located towards the tip end of the blade, the communication devices comprising antennas polarized substantially perpendicular to the suction side of the blade and substantially parallel to the leading edge of the wind turbine blade.

公开(公告)号：US20190024630A1

公开(公告)日：2019-01-24

申请号：US16069037

申请日：2017-01-10

Applicant: LM WP PATENT HOLDING A/S

Inventor： Kristian LEHMANN MADSEN ,  Steven HAUGE PEDERSEN

IPC: F03D1/06 ,  F03D13/10

Abstract: The present invention relates to an embedding element (76) for embedment in a shell structure of a wind turbine rotor blade (10), the element having a wedge-shaped part (85). The embedding element (76) comprises a fibre material and a binding agent, wherein the fibre material is at least partially joined together by means of the binding agent. The inventive element provides improved structural flexibility and elasticity resulting in less wrinkle formation during blade manufacturing. In other aspects, the invention relates to a method of manufacturing the embedding element (76), to a method of manufacturing a wind turbine rotor blade (10) using the embedding element (76), and to a wind turbine blade (10) obtainable by said method.

公开(公告)号：US20190017493A1

公开(公告)日：2019-01-17

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.

公开(公告)号：US20190010919A1

公开(公告)日：2019-01-10

申请号：US16064782

申请日：2016-12-19

Applicant: LM WP PATENT HOLDING A/S

Inventor： Lars NIELSEN ,  Klavs JESPERSEN

IPC: F03D1/06 ,  B29C65/00 ,  B29D99/00

CPC classification number: F03D1/0675 ,  B29C66/7212 ,  B29D99/0025 ,  B29L2031/085 ,  F05B2280/6003 ,  F05B2280/6013 ,  Y02E10/721 ,  Y02P70/523

Abstract: The present disclosure relates to a wind turbine blade. The wind turbine blade comprises a load carrying structure made of a fibre-reinforced polymer material. The load carrying structure comprises a plurality of stacked fibre layers or fibre mats in a thickness of the load carrying structure. The plurality of said stacked fibre layers or fibre mats are made of hybrid material comprising both carbon fibres and glass fibres and having a carbon fibre ratio. The carbon fibre ratio is defined as a volume of the carbon fibres divided by a total volume of the glass fibres and carbon fibres. At least a number of said stacked fibre layers or fibre mats have different carbon fibre ratios such that the carbon fibre ratio of fibre material varies through the thickness of the load carrying structure.

公开(公告)号：US10145357B2

公开(公告)日：2018-12-04

申请号：US15691137

申请日：2017-08-30

Applicant: LM WP PATENT HOLDING A/S

Inventor： Jesper Madsen

IPC: B23P23/00 ,  B23P6/00 ,  B21D53/78 ,  B21K3/04 ,  B23P15/02 ,  F03D1/06 ,  F03D7/02 ,  F03D7/04 ,  F03D17/00 ,  F03D80/50

Abstract: A method of retrofitting vortex generators on a wind turbine blade is disclosed, the wind turbine blade being mounted on a wind turbine hub and extending in a longitudinal direction and having a tip end and a root end, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The method comprises identifying a separation line on the suction side of the wind turbine blade, and mounting one or more vortex panels including a first vortex panel comprising at least one vortex generator on the suction side of the wind turbine blade between the separation line and the leading edge of the wind turbine blade.

公开(公告)号：US10132291B2

公开(公告)日：2018-11-20

申请号：US14427317

申请日：2013-09-16

Applicant: LM WP PATENT HOLDING A/S ,  Jesper Hasselbalch Garm

Inventor： Jesper Hasselbalch Garm

IPC: F03D1/06 ,  F03D80/70

Abstract: A wind turbine blade having a circular root portion and provided with root bushings for mounting the blade to a wind turbine hub, and the root bushings comprise an elongated cross-sectional profile with a first dimension oriented along a radius of the circular root portion being larger than a second dimension oriented along a circumferential direction of the circular root section.

公开(公告)号：US10100806B2

公开(公告)日：2018-10-16

申请号：US14442018

申请日：2013-11-19

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.

公开(公告)号：US09989036B2

公开(公告)日：2018-06-05

申请号：US14405081

申请日：2013-05-27

Applicant: LM WP PATENT HOLDING A/S

Inventor： Lars Bo Hansen

IPC: F03D1/06 ,  F03D7/02 ,  F03D11/00 ,  F03D80/30 ,  F03D13/10

CPC classification number: F03D13/10 ,  F03D1/0658 ,  F03D1/0675 ,  F03D7/0224 ,  F03D80/30 ,  F05B2260/301 ,  Y02E10/721 ,  Y10T29/49117

Abstract: A wind turbine blade is described having a lightning bypass system located at the root end of the blade. The lightning bypass system comprises a stay bolt formed from an electrically insulating material having a conductive core. The conductive core of the stay bolt provides a conductive path for a lightning down conductor system through the root end of a wind turbine blade to the turbine hub or nacelle, bypassing any sensitive root end components of the wind turbine blade.