Patents Assigned to LM WP PATENT HOLDING A/S
  • Patent number: 11858227
    Abstract: A method of manufacturing a wind turbine blade shell part is described. Fibre mats and a root end insert are laid up in a mould part in a layup procedure by use of an automated layup system. The fibre mats are laid up by use of a buffer so that the fibre mats may continuously be laid up on the mould surface, also during a cutting procedure. The root end insert is prepared in advance and mounted on a mounting plate. The root end insert is lowered onto the mould by use of the mounting plate and a lowering mechanism. After the wind turbine blade shell has been moulded, the mounting plate is removed.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: January 2, 2024
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
  • Patent number: 11828263
    Abstract: A vortex generator device for a wind turbine blade, and a wind turbine blade is disclosed, the vortex generator device comprising a base with an inner side and an outer side, and a first fin protruding from the outer side and extending along a first fin axis, wherein the vortex generator device is a single-fin vortex generator device, and the base has a first edge part and a second edge part, the first edge part and the second edge part forming a primary angle in the range from 5 degrees to 60 degrees.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 28, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Jesper Madsen, Jesper Høeg, Kim Ansholm Rasmussen, Danny Kedochim
  • Patent number: 11819874
    Abstract: This invention relates to a dispenser device for and a method of applying a structural adhesive to an application surface on a wind turbine blade structure, wherein the dispenser device comprises a housing forming a reservoir configured to hold a surplus of structural adhesive during dispensing. The reservoir is connected to an inlet for supplying the structural adhesive and an outlet for dispensing the structural adhesive. The outlet may be a side opening arranged in an exchangeable housing part. The dispenser device may also comprise an adjustable mechanism connected to a plate member configured to be moved relative to the side opening. The operation of the adjustable mechanism is controlled via a control unit or a control element. The exchangeable housing part or adjustable mechanism enables the cross-sectional profile, the width and/or the height of the dispensed structural adhesive to be changed before or during dispensing.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 21, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Shashidhar Patil, Roelof Willem Schuring, Michael Wenani Nielsen, Suresh Babu Gangavar Pandarinath, Rakesh Kumar Angural
  • Patent number: 11746743
    Abstract: A wind turbine blade (10, 610) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft is described. A surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to a surface of the wind turbine blade (10). The surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to the surface of the wind turbine blade (10, 610) via at least a first attachment part (77, 77?), which is connected to a part of the surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770). The attachment part (77, 77?) comprises a flexible housing (80, 80?, 680, 780) that forms a cavity (81, 81?, 681, 781) between at least the housing (80, 80?, 680, 780) and the surface of the wind turbine blade (10, 610). The cavity (80, 80?, 680, 780) is filled with an adhesive that provides an adhesive bonding to the surface of the wind turbine blade (10, 610).
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: September 5, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Kristian Lehmann Madsen, Jesper Høeg, Casper Kildegaard, Steven Hauge Pedersen
  • Publication number: 20230256689
    Abstract: A shear web mould system for manufacturing a wind turbine component in form of an I-shaped shear web having a web body and a first web foot flange at a first end of the web body and a second web foot flange at a second end of the web body is described. The system comprises a central moulding portion for forming at least a part of the web body, a first moulding plate for forming at least a part of the first web foot flange, and a second moulding plate for forming at least a part of the second web foot flange. The angles of the first moulding plate and the second moulding plate relative to the central moulding portion are adjustable.
    Type: Application
    Filed: May 18, 2022
    Publication date: August 17, 2023
    Applicant: LM WP PATENT HOLDING A/S
    Inventors: Steven Hauge PEDERSEN, Kim Ansholm RASMUSSEN
  • Patent number: 11691352
    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.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: July 4, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventor: Bernard Willem De Waal Malefijt
  • Publication number: 20230175474
    Abstract: A rope for reinforcing joints in fibre-reinforced composite structures is described. The rope comprises chopped reinforcement fibres and retaining means for retaining the chopped fibres in a rope-shape. Further, composite structures utilising such ropes as filler elements are described as well as an apparatus for manufacturing such ropes.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 8, 2023
    Applicant: LM WP PATENT HOLDING A/S
    Inventors: Martin DAHL, Lars NIELSEN
  • Patent number: 11577478
    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.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 14, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventor: Kristian Lehmann Madsen
  • Patent number: 11565484
    Abstract: A method of manufacturing a fibre-composite article is described, wherein a layer of fibre material is applied from a layup head to a mould along a layup path. The angle at which the fibre material is dispensed from the layup head is rotated relative to the angle of orientation of the layup path, to minimise the effects of gravity on the alignment of the fibre layer in the mould. The fibre-composite article is preferably a section of a blade for a wind turbine.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 31, 2023
    Assignee: LM WP PATENT HOLDING A/S
    Inventor: Daniel Schlichting Kirkegaard
  • Publication number: 20220325691
    Abstract: A wind turbine blade (10, 610) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft is described. A surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to a surface of the wind turbine blade (10). The surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to the surface of the wind turbine blade (10, 610) via at least a first attachment part (77, 77?), which is connected to a part of the surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770). The attachment part (77, 77?) comprises a flexible housing (80, 80?, 680, 780) that forms a cavity (81, 81?, 681, 781) between at least the housing (80, 80?, 680, 780) and the surface of the wind turbine blade (10, 610). The cavity (80, 80?, 680, 780) is filled with an adhesive that provides an adhesive bonding to the surface of the wind turbine blade (10, 610).
    Type: Application
    Filed: April 12, 2022
    Publication date: October 13, 2022
    Applicant: LM WP PATENT HOLDING A/S
    Inventors: Kristian LEHMANN MADSEN, Jesper HØEG, Casper KILDEGAARD, Steven HAUGE PEDERSEN
  • Patent number: 11428202
    Abstract: A wind turbine blade (10) for a horizontal axis wind turbine (2), wherein the wind turbine blade (10) extends in a longitudinal direction parallel to a longitudinal axis and having a tip end (14) and a root end (16), and wherein the wind turbine blade (2) further includes a shell body is disclosed. The wind turbine blade (10) further includes a root end flange (55, 155, 255) at the root end (16) of the blade (10) and which includes a ring-shaped body that extends circumferentially along the entire root end (16), the root end flange (55, 155, 255) preferably made from a metal, such as stainless steel. The root end flange (55, 155, 255) includes an inwardly extending protrusion (70, 170) with a distal plate part (72, 172, 272, 372, 472, 572, 672, 772) arranged in a distance from the ring body.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 30, 2022
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Flemming Ejlersen, René Van Den Berg, David Roberts, Eddy Keesmekers
  • Patent number: 11396860
    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.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 26, 2022
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Kristian Lehmann Madsen, Steven Hauge Pedersen
  • Patent number: 11274651
    Abstract: A wind turbine blade (10, 610) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft is described. A surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to a surface of the wind turbine blade (10). The surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770) is attached to the surface of the wind turbine blade (10, 610) via at least a first attachment part (77, 77?), which is connected to a part of the surface mounted device (70, 70?, 170, 270, 370, 470, 570, 670, 770). The attachment part (77, 77?) comprises a flexible housing (80, 80?, 680, 780) that forms a cavity (81, 81?, 681, 781) between at least the housing (80, 80?, 680, 780) and the surface of the wind turbine blade (10, 610). The cavity (80, 80?, 680, 780) is filled with an adhesive that provides an adhesive bonding to the surface of the wind turbine blade (10, 610).
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 15, 2022
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Kristian Lehmann Madsen, Jesper Høeg, Casper Kildegaard, Steven Hauge Pedersen
  • Patent number: 11260610
    Abstract: A method of manufacturing a wind turbine blade shell part is described. Fibre mats and a root end insert are laid up in a mould part in a layup procedure by use of an automated layup system. The fibre mats are laid up by use of a buffer so that the fibre mats may continuously be laid up on the mould surface, also during a cutting procedure. The root end insert is prepared in advance and mounted on a mounting plate. The root end insert is lowered onto the mould by use of the mounting plate and a lowering mechanism. After the wind turbine blade shell has been moulded, the mounting plate is removed.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 1, 2022
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
  • Patent number: 11241847
    Abstract: A method of manufacturing a wind turbine blade shell part is described. Fibre mats and a root end insert are laid up in a mould part in a layup procedure by use of an automated layup system. The fibre mats are laid up by use of a buffer so that the fibre mats may continuously be laid up on the mould surface, also during a cutting procedure. The root end insert is prepared in advance and mounted on a mounting plate. The root end insert is lowered onto the mould by use of the mounting plate and a lowering mechanism. After the wind turbine blade shell has been moulded, the mounting plate is removed.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: February 8, 2022
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
  • Patent number: 11203169
    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.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: December 21, 2021
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Poul Erik Hansen, Harsha Tummala
  • Patent number: 11204015
    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).
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 21, 2021
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Jesper Høeg, Kim Ansholm Rasmussen, Casper Kildegaard, Kristian Lehmann Madsen
  • Patent number: 11203167
    Abstract: A method of manufacturing a wind turbine blade is described, the blade being formed from at least a pair of blade shells being joined together. For at least a portion of the wind turbine blade, the blade shells are joined by an overlamination applied between the edges of the blade shells, thereby substantially reducing or eliminating the need for a structural adhesive to join the blade shells, particularly in the area of the leading edge of the blade or the root region of the blade trailing edge. The overlamination can be formed from the same material as the blade shells themselves, thereby minimising the possibility of structural faults or cracks due to differences in materials or stiffness levels at the interface between the blade shells.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: December 21, 2021
    Assignee: LM WP PATENT HOLDING A/S
    Inventor: Jesper Hasselbalch Garm
  • Patent number: 11143160
    Abstract: A flexible aeroshell extender piece for an inboard part of a wind turbine blade is described, along with an associated method of manufacture. The flexible aeroshell is formed by first assembling a consolidated aeroshell piece, and then making a series of slits at the trailing edge of the aeroshell piece. Such a construction provides an aeroshell having a relatively flexible trailing edge section, which allows for bending or flexing of the aeroshell trailing edge during wind turbine blade operation.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 12, 2021
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Jesper Hasselbalch Garm, Gurli Rask Nielsen, Peter Quiring
  • Patent number: 11092133
    Abstract: The invention relates to a wind turbine blade having a leading edge erosion shield. The erosion shield comprises an inner layer of a first thermoplastic material, the inner layer being an integral part of the shell body of the wind turbine blade. The erosion shield further comprises an outer layer of a second thermoplastic material attached to the inner layer.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: August 17, 2021
    Assignee: LM WP PATENT HOLDING A/S
    Inventor: Michael Drachmann Haag