Patents by Inventor Lars Fuglsang
Lars Fuglsang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11858227Abstract: 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: GrantFiled: December 28, 2021Date of Patent: January 2, 2024Assignee: LM WP PATENT HOLDING A/SInventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
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Publication number: 20220118726Abstract: 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: ApplicationFiled: December 28, 2021Publication date: April 21, 2022Inventors: Dennis Andre BORSTING, Ivan Engmark MORTENSEN, Lars FUGLSANG, Per Kjaer CHRISTIANSEN
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Patent number: 11260610Abstract: 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: GrantFiled: September 27, 2018Date of Patent: March 1, 2022Assignee: LM WP PATENT HOLDING A/SInventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
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Patent number: 11241847Abstract: 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: GrantFiled: September 27, 2018Date of Patent: February 8, 2022Assignee: LM WP PATENT HOLDING A/SInventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
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Patent number: 11220079Abstract: The present invention relates to a method of manufacturing a plurality of wind turbine blades. The method includes providing first, second and third stationary moulds, moulding respective first upper and lower shell halves, removing and turning the first upper shell half, and positioning and bonding it on the first lower shell half to form a closed wind turbine blade shell. This is repeated for continuously manufacturing a plurality of wind turbine blades.Type: GrantFiled: December 1, 2017Date of Patent: January 11, 2022Assignee: LM WIND POWER US TECHNOLOGY APSInventors: Lars Fuglsang, Torben Krogsdal Jacobsen
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Publication number: 20190389165Abstract: The present invention relates to a method of manufacturing a plurality of wind turbine blades. The method comprises first, second and third stationary moulds (64a, 64b, 64c), moulding respective first upper and lower shell halves (74a, 76a), removing and turning the first upper shell half (74a), and positioning and bonding it on the first lower shell half (76a) to form a closed wind turbine blade shell. This is repeated for continuously manufacturing a plurality of wind turbine blades.Type: ApplicationFiled: December 1, 2017Publication date: December 26, 2019Inventors: Lars FUGLSANG, Torben Krogsdal JACOBSEN
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Patent number: 10378508Abstract: A bulkhead assembly for a wind turbine blade is described, where the bulkhead is substantially formed from a flexible sheet material. In one aspect, the flexible sheet material can be attached to the larger assembly using a releasable connection, e.g. a zipped connection, to allow for relatively easy installation and removal, e.g. for repair or other service operations. At least a portion of the sheet material may be transparent, to allow for easy inspection of the interior of the wind turbine blade. In one aspect, the bulkhead assembly is arranged to couple to, or is formed integrally with, the root flange of a wind turbine blade. The use of such a flexible material to form the blade root end bulkhead allows for ease of handling and manufacturability over prior art systems.Type: GrantFiled: February 13, 2015Date of Patent: August 13, 2019Assignee: LM WP PATENT HOLDING A/SInventors: Michael Schäfer, Lars Fuglsang Andersen
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Patent number: 10330082Abstract: 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 root end device is provided on a bracket projecting from the external surface of the blade, to provide a communication path between the root end and tip end devices which is less susceptible to interference from multipath effects, etc. There is further provided a method to derive tilt and yaw moments from measured deflections. A control method for such a system is also described, wherein the signal gain of the communication path may be varied based at least in part upon the deflection characteristics of the wind turbine blade.Type: GrantFiled: August 14, 2013Date of Patent: June 25, 2019Assignee: LM WP PATENT HOLDING A/SInventors: Claus Byskov, Peter Baek, Michael Klitgaard, Casper Skovby, Lars Fuglsang
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Publication number: 20190022959Abstract: 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: ApplicationFiled: September 27, 2018Publication date: January 24, 2019Inventors: Dennis Andre BORSTING, Ivan Engmark MORTENSEN, Lars FUGLSANG, Per Kjaer CHRISTIANSEN
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Publication number: 20190022960Abstract: 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: ApplicationFiled: September 27, 2018Publication date: January 24, 2019Inventors: Dennis Andre BORSTING, Ivan Engmark MORTENSEN, Lars FUGLSANG, Per Kjaer CHRISTIANSEN
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Patent number: 10118352Abstract: A method of manufacturing a wind turbine blade shell part is described. Fiber 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 fiber mats are laid up by use of a buffer so that the fiber 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: GrantFiled: May 31, 2013Date of Patent: November 6, 2018Assignee: LM WP Patent Holdings A/SInventors: Dennis Andre Borsting, Ivan Engmark Mortensen, Lars Fuglsang, Per Kjaer Christiansen
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Publication number: 20160176127Abstract: 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: ApplicationFiled: May 31, 2013Publication date: June 23, 2016Inventors: Dennis Andre BORSTING, Ivan Engmark MORTENSEN, Lars FUGLSANG, Per Kjaer CHRISTIANSEN
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Patent number: 9341160Abstract: A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal processor. The light source is optically coupled to the optical transmitter part, which includes an emission point for emitting light in a probing direction. The optical receiver part comprises a receiving point and a detector. The optical receiver part is adapted for receiving a reflected part of light from a probing region along the probing direction and directing the reflected part of light to the detector to generate a signal used to determine a first velocity component of the inflow. The emission point is located in a first blade at a first radial distance from a center axis, and the receiving point is located in the first blade at a second radial distance from the center axis.Type: GrantFiled: November 7, 2014Date of Patent: May 17, 2016Assignee: LM GLASFIBER A/SInventors: Peter Fuglsang, Lars Fuglsang, Lars Christian Hvidegaard Hammer
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Publication number: 20150240787Abstract: 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 root end device is provided on a bracket projecting from the external surface of the blade, to provide a communication path between the root end and tip end devices which is less susceptible to interference from multipath effects, etc. There is further provided a method to derive tilt and yaw moments from measured deflections. A control method for such a system is also described, wherein the signal gain of the communication path may be varied based at least in part upon the deflection characteristics of the wind turbine blade.Type: ApplicationFiled: August 14, 2013Publication date: August 27, 2015Inventors: Claus Byskov, Peter Baek, Michael Klitgaard, Casper Skovby, Lars Fuglsang
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Patent number: 9057359Abstract: A blade, for a rotor of a wind turbine has a profiled contour in a radial direction is divided into a root region with a substantially circular or elliptical profile closest to the hub and an airfoil region with a lift generating profile furthest away from the hub. A transition region between the root region and the airfoil region has a profile gradually changing in the radial direction from the circular or elliptical profile of the root region to the lift generating profile of the airfoil region, and the airfoil region comprises at least a first longitudinal segment extending at least 20% of a longitudinal extent of the airfoil region. The first longitudinal segment has a first base part with a cross-sectional profile such that, when impacted by an incident airflow at an angle of attack of 0 degrees has a lift coefficient, which is 0 or less.Type: GrantFiled: May 18, 2010Date of Patent: June 16, 2015Assignee: LM GLASFIBER A/SInventors: Peter Fuglsang, Stefano Bove, Lars Fuglsang
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Patent number: 9033659Abstract: A blade for a rotor of a wind turbine is manufactured with a root region with a substantially circular or elliptical profile closest to the hub, an airfoil region with a lift generating profile furthest away from the hub and a transition region having a profile gradually changing the root region to the airfoil region. A first blade design is used for the first base part on a first longitudinal section of an airfoil region of a second blade, so that an induction factor of the first base part on the second blade deviates from a target induction factor. The first longitudinal section of the second blade is provided with flow altering devices so as to adjust the aerodynamic properties of the first longitudinal segment to substantially meet the target induction factor at the design point on the second blade.Type: GrantFiled: May 18, 2010Date of Patent: May 19, 2015Assignee: LM Glasfiber A/SInventors: Peter Fuglsang, Stefano Bove, Lars Fuglsang
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Patent number: 9017034Abstract: An upwind wind turbine comprising blades extending radially from a rigid hub on a main shaft having a horizontal axis is described. The blades and hub constitute a rotor with a rotor plane. The main shaft is pivotally mounted in a nacelle on top of a tower which pivots around the vertical axis of the tower. The rotor plane adjusts in relation to wind direction, so during normal use the rotor is positioned on the upwind side of the tower. Each blade has at least a first leeward supporting mechanism having first and second ends. The first end connects to the blade at a first leeward mounting point positioned in a radial distance from the horizontal axis. The second end connects to a second leeward mounting point at a rotatable part and is positioned in an axial distance from the rotor plane on the leeward side of the rotor.Type: GrantFiled: April 21, 2009Date of Patent: April 28, 2015Assignee: LM Glasfiber A/SInventor: Lars Fuglsang
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Publication number: 20150064005Abstract: A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal processor. The light source is optically coupled to the optical transmitter part, which includes an emission point for emitting light in a probing direction. The optical receiver part comprises a receiving point and a detector. The optical receiver part is adapted for receiving a reflected part of light from a probing region along the probing direction and directing the reflected part of light to the detector to generate a signal used to determine a first velocity component of the inflow. The emission point is located in a first blade at a first radial distance from a center axis, and the receiving point is located in the first blade at a second radial distance from the center axis.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Inventors: Peter FUGLSANG, Lars FUGLSANG, Lars Christian Hvidegaard HAMMER
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Patent number: 8917383Abstract: A wind turbine includes a number of blades and an optical measurement system comprising a light source, such as a laser, an optical transmitter part, an optical receiver part, and a signal processor. The light source is optically coupled to the optical transmitter part, which includes an emission point for emitting light in a probing direction. The optical receiver part comprises a receiving point and a detector. The optical receiver part is adapted for receiving a reflected part of light from a probing region along the probing direction and directing the reflected part of light to the detector to generate a signal used to determine a first velocity component of the inflow. The emission point is located in a first blade at a first radial distance from a center axis, and the receiving point is located in the first blade at a second radial distance from the center axis.Type: GrantFiled: November 26, 2010Date of Patent: December 23, 2014Assignee: LM Glasfiber A/SInventors: Peter Fuglsang, Lars Fuglsang, Lars Christian Hvidegaard Hammer
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Patent number: 8899922Abstract: A blade for a rotor of a wind turbine is divided into a root region closest to the hub and an airfoil region with a lift generating profile furthest away from the hub. A transition region has a profile gradually changing in the radial direction from the circular or elliptical profile of the root region to the lift generating profile of the airfoil region, and includes at least a first longitudinal segment extending along at least 20% of a longitudinal extent of the airfoil region. A base part has an inherent non-ideal twist, such as no twist, or a reduced twist compared to a target blade twist, so that an axial induction factor of the first base part at a design point deviates from a target axial induction factor. A number of flow altering devices are arranged so as to adjust the aerodynamic properties of the first longitudinal segment.Type: GrantFiled: May 18, 2010Date of Patent: December 2, 2014Assignee: LM Glasfiber A/SInventors: Peter Fuglsang, Stefano Bove, Lars Fuglsang