公开(公告)号：US11691352B2

公开(公告)日：2023-07-04

申请号：US16103354

申请日：2018-08-14

Applicant: LM WP PATENT HOLDING A/S

Inventor： Bernard Willem De Waal Malefijt

IPC: B29C65/78 ,  F01D5/28 ,  B29C31/00 ,  B29C65/48 ,  B29C65/00 ,  B29L31/08 ,  B29K105/00

CPC classification number: B29C65/78 ,  B29C31/00 ,  B29C65/7847 ,  F01D5/282 ,  B29C65/48 ,  B29C65/7802 ,  B29C65/7841 ,  B29C66/1142 ,  B29C66/54 ,  B29K2105/253 ,  B29L2031/08 ,  B29L2031/085 ,  Y02E10/72 ,  Y02P70/50 ,  Y10T156/1744

Abstract: A post-moulding station is described which is used in the manufacturing of a wind turbine blade. A blade shell forming part of a wind turbine blade is initially moulded in a blade mould, the blade shell subsequently transferred to a post-moulding station which allows for various post-moulding operations to be carried out on the blade shell away from the mould, thereby increasing the productivity of the blade mould in the manufacturing process. The post-moulding station may be operable to perform the closing of first and second blade shells to form a wind turbine blade, and may be formed from an adjustable structure which can provide relatively easy access to the contained blade shell for working thereon. Accordingly, the manufacturing equipment may be of reduced cost, combined with an increase in the overall productivity of the manufacturing system.

公开(公告)号：US11577478B2

公开(公告)日：2023-02-14

申请号：US16081190

申请日：2016-03-02

Applicant: LM WP PATENT HOLDING A/S

Inventor： Kristian Lehmann Madsen

IPC: B29C70/48 ,  B29B11/16 ,  B29C70/44 ,  B29C70/08 ,  B29B11/04 ,  B29L31/08 ,  B29D99/00 ,  B32B37/16 ,  F03D1/06

Abstract: The present invention relates to a method of molding a shell part of a wind turbine blade comprising the steps of providing a mold (64) comprising a mold cavity (66) with a root end (68) and an opposing tip end (70), arranging one or more preformed sheets (72a, 72b, 72c) in the mold cavity (66), wherein each preformed sheet comprises a mixture of fibre rovings (82) and a binding agent, wherein the fibre rovings are at least partially joined together by means of the binding agent, and injecting the one or more preformed sheets (72a, 72b, 72c) with a resin to mold the shell part. The present invention also relates to a shell part of a wind turbine blade obtainable by said method, to a preformed sheet for use in said method and to a method of manufacturing said preformed sheet.

公开(公告)号：US11092132B2

公开(公告)日：2021-08-17

申请号：US14902024

申请日：2014-07-10

Applicant: LM WP PATENT HOLDING A/S

Inventor： Peter Quiring ,  Michael Schafer

IPC: F03D1/06 ,  B29C33/30 ,  B29D99/00 ,  B29C70/34 ,  B29C70/44 ,  B29L31/08 ,  B29K63/00 ,  B29K67/00 ,  B29K105/06

Abstract: A method and mould system for manufacturing at least a root section of a wind turbine blade is described. The method and system utilise a mould inlay which is arranged on top of a mould surface of a mould part so as to change the radius of curvature of the mould part and thereby also the diameter of a root section manufactured via the mould part and mould inlay. Further, blades manufactured via the method and mould system are described.

公开(公告)号：US11067056B2

公开(公告)日：2021-07-20

申请号：US15118698

申请日：2015-02-17

Applicant: LM WP PATENT HOLDING A/S

Inventor： Torben Krogsdal Jacobsen ,  Roel Schuring ,  Dhinagaran Ramachandran ,  Madhava Prasad Koteshwara ,  Utsa Majumder ,  Casper Kildegaard ,  Madhusudhan N Veerappa ,  Torben Lindby ,  Prajna Aachar ,  Morten Olesen ,  Aanchal Saini

IPC: F03D1/06

Abstract: A wind turbine blade bushing system for arrangement in a root end of a wind turbine blade is described. The wind turbine blade bushing system comprises a threaded element for retaining a mounting bolt for a wind turbine blade, the threaded element being formed from a first material; and an anchor element for arrangement at the root end of the wind turbine, wherein the anchor element acts to at least partly retain the threaded element in the wind turbine blade, the anchor element being formed from a second material. The first material has a higher strength and higher fracture toughness than the second material.

公开(公告)号：US11053911B2

公开(公告)日：2021-07-06

申请号：US16597367

申请日：2019-10-09

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：US10961979B2

公开(公告)日：2021-03-30

申请号：US15503606

申请日：2015-08-18

Applicant: LM WP PATENT HOLDING A/S

Inventor： Jesper Hasselbalch Garm ,  Michael Wenani Nielsen ,  Peter Quiring ,  Kildegaard Casper

IPC: B29C70/48 ,  F03D1/06 ,  B29K105/08 ,  B29L31/08

Abstract: A component for a wind turbine blade is described having a reinforced through-going aperture. The reinforcement can be provide by way of a fibre rope arranged around the periphery of the aperture, or as fibre material arranged in a radially-extending arrangement from the aperture.

公开(公告)号：US10947852B2

公开(公告)日：2021-03-16

申请号：US14895409

申请日：2014-06-18

Applicant: LM WP PATENT HOLDING A/S

Inventor： Roel Schuring

IPC: F03D1/06 ,  F01D5/14

Abstract: A tribrid wind turbine blade is described, wherein the blade is formed from three separate parts made using three different manufacturing approaches. A root section of the blade is formed by a load-bearing central spar having an aerodynamic shell or fairing fitted to the spar. A mainboard portion is formed from a load-bearing shell structure. A tip portion is formed as an integrally-formed element from a one-shot closed moulding process.

公开(公告)号：US10913230B2

公开(公告)日：2021-02-09

申请号：US16067941

申请日：2017-01-03

Applicant: LM WP PATENT HOLDING A/S

Inventor： Lars Nielsen

IPC: B29D99/00 ,  B29C70/54 ,  B29L31/08

Abstract: The present invention relates to a method of molding a shell part of a wind turbine blade. The method involves attaching one or more fastening elements (63) onto a molding surface, each fastening element (63) comprising a support layer (64) with an upper face (66) and a lower face (68), and one or more spikes protruding from the upper face of the support layer (64). Fiber plies are then successively laid out into the molding cavity (78) such that each ply is anchored to one or more of said spikes. The fiber plies are then contacted with a polymer material to produce a shell part comprising a fiber reinforced composite material. The invention also relates to a shell part of a wind turbine blade obtainable by the method and to a fastening element for use in said method.

公开(公告)号：US10781788B2

公开(公告)日：2020-09-22

申请号：US15317218

申请日：2015-07-03

Applicant: LM WP PATENT HOLDING A/S

Inventor： Carlos Arce

IPC: F03D1/06

Abstract: A wind turbine blade is described having a serrated trailing edge. Flow straightening vanes are provided on the serrations, to prevent a lateral or side flow over the edges of the serrations, which are preferably provided at incidence to the flow over the wind turbine blade. The vanes can be formed integrally with the serrations, or attached to existing serrations as a retrofit solution. The serrations with the vanes can be provided as a trailing edge panel for attachment to the trailing edge of an existing wind turbine blade.

公开(公告)号：US10731626B2

公开(公告)日：2020-08-04

申请号：US15105823

申请日：2014-12-18

Applicant: LM WP PATENT HOLDING A/S

Inventor： Carlos Arce ,  Martin Dahl ,  Jesper Madsen

IPC: F03D1/06

Abstract: A wind turbine blade is described, as well as a trailing edge plate for a wind turbine blade. A flexible flow modulation device, e.g. an acoustic flap or a plurality of serrations, is arranged at the trailing edge of a wind turbine blade, wherein the flexible device is coupled to at least one aerodynamic device, preferably vortex generators. As the flexible device is bent by action of flow over the wind turbine blade, the at least one aerodynamic device is deployed to provide for attached flow over the bent flexible device.