公开(公告)号：US10513810B2

公开(公告)日：2019-12-24

申请号：US15318398

申请日：2014-06-16

Applicant: LM WP PATENT HOLDING A/S

Inventor： Dhinagaran Ramachandran ,  Shalu Thadathazhath ,  Sathiyagopi Madurai ,  Rohin Sushil ,  Rajesh Aithal ,  Hannah Priyadarshini B ,  Mohammad Imdad Basha ,  Christian Lundsgaard-Larsen ,  Rasmus C Østergaard ,  Torben Krogsdal Jacobsen

IPC: D04H3/04 ,  F03D1/06 ,  B29D99/00 ,  B29C65/48 ,  B29C65/72

Abstract: A method of producing a single assembled longitudinally extending fibre layer for use in a later resin infusion process for manufacturing a fibre-reinforced composite structure is described including steps: a) providing a first fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the first fibre mat, b) providing a second fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the second fibre mat, c) arranging the first fibre mat and the second fibre mat so that unidirectional fibres of one end of the first fibre mat adjoin one end of the second fibre mat in a single plane at a common boundary, and d) splicing unidirectional fibres of the first fibre mat at one end of the first fibre mat to unidirectional fibres of the second fibre mat at one end of the second fibre mat in order to form a splicing joint.

公开(公告)号：US20150017008A1

公开(公告)日：2015-01-15

申请号：US14377973

申请日：2013-02-14

Applicant: LM WP PATENT HOLDING A/S

Inventor： Dhinagaran Ramachandran ,  Jesper Madsen ,  Rajkumar Rajamani

IPC: F03D1/06

CPC classification number: F03D1/0641 ,  F03D1/0633 ,  F05B2240/221 ,  F05B2240/30 ,  Y02E10/721

Abstract: A wind turbine blade is described wherein at least one stall fence is provided on the blade surface, where the stall fence is arranged such that it extends at an angle to the chord of the blade. The stall fence acts to re-direct airflow over the blade, to improve wind turbine performance. The stall fence may be a provided towards the blade root end, acting to divert airflow towards the root end of the blade to prevent separation of attached airflow. Additionally or alternatively, the stall fence may be arranged as a flow diverter provided towards the blade tip end, to increase airflow in the tip region for increased performance and/or to disrupt the formation of tip vortices.

Abstract translation: 描述了一种风力涡轮机叶片，其中在叶片表面上设置有至少一个失速挡板，其中失速挡板被布置成使得其与叶片的弦成一定角度延伸。 摊档围栏用于将气流重新引导到叶片上，以改善风力发电机的性能。 摊档挡板可以设置成朝向叶片根部端部，用于将气流朝向叶片的根部端部转过，以防止分离连接的气流。 附加地或替代地，失速挡板可以被布置为朝向叶片尖端设置的分流器，以增加尖端区域中的气流以增加性能和/或破坏尖端涡流的形成。

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：US10041470B2

公开(公告)日：2018-08-07

申请号：US14377973

申请日：2013-02-14

Applicant: LM WP PATENT HOLDING A/S

Inventor： Dhinagaran Ramachandran ,  Jesper Madsen ,  Rajkumar Rajamani

IPC: F01D5/14 ,  F03D1/06

Abstract: A wind turbine blade is described wherein at least one stall fence is provided on the blade surface, where the stall fence is arranged such that it extends at an angle to the chord of the blade. The stall fence acts to re-direct airflow over the blade, to improve wind turbine performance. The stall fence may be a provided towards the blade root end, acting to divert airflow towards the root end of the blade to prevent separation of attached airflow. Additionally or alternatively, the stall fence may be arranged as a flow diverter provided towards the blade tip end, to increase airflow in the tip region for increased performance and/or to disrupt the formation of tip vortices.