公开(公告)号：US11988190B2

公开(公告)日：2024-05-21

申请号：US17606425

申请日：2020-04-24

Applicant: BLADE DYNAMICS LIMITED ,  LM WIND POWER A/S

Inventor： Manish Mukherjee ,  Michael Lund-Laverick

IPC: F03D1/06 ,  B29D99/00 ,  B29L31/08

CPC classification number: F03D1/0675 ,  B29D99/0028 ,  F03D1/0641 ,  B29L2031/085 ,  F05B2230/60 ,  F05B2240/301 ,  F05B2240/304 ,  F05B2260/301

Abstract: Disclosed is a wind turbine blade and a method for its manufacture. A lower shell part and an upper shell part are provided, each shell part having a leading edge end and a trailing edge end. A flatback profile component and web for connecting an inner surface of the lower side shell part with an inner surface of the upper side shell part are connected. The assembly which comprises the flatback profile component and the at least one web are placed on the lower shell part and the upper shell part is mounted. The wind turbine blade comprises a flatback profile component being arranged at the trailing edge, wherein the flatback profile component is coupled by at least one distance holder with at least one web, wherein the web couples the interior surface of the upwind side shell part with the interior surface of the downwind side shell part.

公开(公告)号：US11913427B2

公开(公告)日：2024-02-27

申请号：US17385578

申请日：2021-07-26

Applicant: Wobben Properties GmbH

Inventor： Andreas von Albedyll ,  Dimitrios Bekiropoulos

IPC: F03D1/06 ,  G10K11/172

CPC classification number: F03D1/065 ,  F03D1/0641 ,  F03D1/0675 ,  G10K11/172 ,  F05B2240/221 ,  F05B2240/30 ,  F05B2260/96

Abstract: Rotor blade for a wind power installation, rotor for a wind power installation, and wind power installation. The disclosure relates in particular to a rotor blade for a wind power installation, having a rotor blade length, having a profile depth established between a leading edge and a trailing edge, and having a profile thickness established between a suction side and a pressure side, wherein the rotor blade has a trailing edge region, which adjoins the trailing edge and extends with a region extent of less than 20%, in particular less than 10%, of the profile depth in the direction of the leading edge, wherein the trailing edge region has at least one acoustic opening.

公开(公告)号：US11828262B2

公开(公告)日：2023-11-28

申请号：US17626384

申请日：2020-07-08

Applicant: Wobben Properties GmbH

Inventor： Christian Möller ,  Hauke Maass ,  Jochen Stemberg

IPC: F03D1/06

CPC classification number: F03D1/0641 ,  F03D1/0675 ,  F05B2240/301

Abstract: A rotor blade of a wind turbine, to an associated wind turbine and to an associated method. A rotor blade for a wind turbine, which extends in the longitudinal direction with a profile course from a blade connector to a blade tip, wherein the profile course comprises a course of a lift coefficient, comprising a hub portion adjacent to the blade connector and a tip portion adjacent to the blade tip, a middle portion adjacent to the hub portion and to the tip portion, wherein the middle portion substantially comprises those profile sections which have a relative profile thickness, which is defined as the ratio of maximum profile thickness to profile depth, of between 20% and 30%, and wherein the middle portion comprises a local minimum of the course of the lift coefficient.

公开(公告)号：US20190234376A1

公开(公告)日：2019-08-01

申请号：US16259008

申请日：2019-01-28

Applicant: Siemens Gamesa Renewable Energy A/S

Inventor： Busra Akay ,  Peder Bay Enevoldsen ,  Alejandro Gomez Gonzalez

IPC: F03D7/02 ,  F03D1/06

CPC classification number: F03D7/0232 ,  F03D1/0641 ,  F03D1/0675 ,  F03D1/0683 ,  F05B2240/2211 ,  F05B2240/301 ,  F05B2240/311 ,  F05B2250/14 ,  F05B2250/183 ,  F05B2270/402

Abstract: Provided is a trailing edge assembly of a wind turbine rotor blade, which includes a mounting portion; a flap portion flexibly connected to the mounting portion so that a flap angle subtended between the mounting portion and the flap portion can be altered; a volume adjustable chamber arranged between the mounting portion and the flap portion and realised to alter its volume between a minimum volume associated with a minimum flap angle and a maximum volume associated with a maximum flap angle; and at least one tube to face into an airflow passing over the airfoil region of the rotor blade, and an inner orifice arranged to face into the interior of the volume adjustable chamber such that an airflow between the outer orifice and the inner orifice alters the volume of the volume adjustable chamber. Embodiments of the invention further describe a wind turbine rotor blade.

公开(公告)号：US20190232571A1

公开(公告)日：2019-08-01

申请号：US16311487

申请日：2017-06-20

Applicant: LM Wind Power US Technology ApS

Inventor： Karsten SCHIBSBYE

IPC: B29C65/70 ,  B29C65/48 ,  B29C65/00 ,  F03D1/06

CPC classification number: B29C65/70 ,  B29C33/30 ,  B29C65/483 ,  B29C65/7826 ,  B29C66/112 ,  B29C66/1122 ,  B29C66/1222 ,  B29C66/1228 ,  B29C66/131 ,  B29C66/1312 ,  B29C66/54 ,  B29C66/5414 ,  B29C66/721 ,  B29C66/7212 ,  B29C66/81431 ,  B29C66/8322 ,  B29D99/0028 ,  B29L2031/085 ,  F03D1/0641 ,  F03D1/0675 ,  F05B2230/20 ,  F05B2240/2212 ,  F05B2240/301 ,  Y02E10/721 ,  Y02P70/523 ,  B29K2309/08 ,  B29K2307/04

Abstract: The disclosure presents a wind turbine blade and a method of manufacturing a wind turbine blade, wherein the wind turbine blade is manufactured as a composite structure comprising a reinforcement material embedded in a polymer matrix, the method comprising: providing a first blade mould with a first blade shell part having a leading edge, a trailing edge, and a first leading edge glue surface at the leading edge, the first blade mould comprising a first leading edge flange; providing a second blade mould with a second blade shell part having a leading edge, a trailing edge, and a second leading edge glue surface at the leading edge, the second blade mould comprising a second leading edge flange; applying glue to a leading edge glue surface; providing one or more leading edge spacer elements at a leading edge flange; arranging the second blade mould on the first blade mould, such that the one or more leading edge spacer elements are arranged between the first leading edge flange and the second leading edge flange; applying a pressure to the second blade shell part; and curing the glue.

公开(公告)号：US20180266387A1

公开(公告)日：2018-09-20

申请号：US15893462

申请日：2018-02-09

Applicant: Primo Wind, Inc.

Inventor： Edward McMahon ,  Lauren Hoffman

IPC: F03D1/06 ,  F03D9/25

CPC classification number: F03D1/0633 ,  F03D1/0641 ,  F03D1/0658 ,  F03D9/25 ,  F05B2240/221 ,  F05B2240/2211 ,  F05B2240/60 ,  F05B2250/712 ,  F05B2280/4003 ,  Y02E10/721 ,  Y02E10/725

Abstract: A blade for a wind turbine can include an elongated and curved sheet having a root, a tip positioned opposite the root, a leading edge spanning between the root and the tip along a length of the blade, and a trailing edge spanning between the root and the tip opposite the leading edge. The blade can include a generally concave surface formed by curvature of the blade about a longitudinal axis. The blade can further include one or more air dams, which can be in the form of strip elements oriented transverse to the longitudinal axis and extending away from the concave surface. The air dams improve torque and efficiency of the blade. In some embodiments, an edge of the root can include a plurality of curved projections distributed thereon. A wind turbine system can include a generator and a wind turbine having a mounting element to support turbine blades.

公开(公告)号：US20180258911A1

公开(公告)日：2018-09-13

申请号：US15756637

申请日：2016-09-01

Applicant: Kelso Energy Ltd

Inventor： Barry Ross Ireland

IPC: F03D3/06 ,  F03D1/06 ,  F03D3/00

CPC classification number: F03D3/068 ,  F03D1/0641 ,  F03D3/005 ,  F03D3/061 ,  F03D3/062 ,  F05B2240/214 ,  F05B2240/232 ,  F05B2240/301 ,  Y02E10/721 ,  Y02E10/74

Abstract: A unique wind turbine blade features a drag element having a concave surface for impingement of airflow thereagainst to create a drag force, and an airfoil having a rounded edge and an opposing sharper edge. The sharp edge points toward the drag element from a side thereof to which the concave surface faces, and the rounded edge points away from the drag element on the same side thereof as the sharp edge such that the sharp edge leads the rounded edge under movement of the drag element by the drag force. A unique wind turbine features an auxiliary support bearing disposed at a spaced axial distance from the rotor, and an auxiliary blade support connection spanning from the auxiliary bearing to the blade at a distance spaced axially from where a rotor blade support connects to said blade.

公开(公告)号：US10060274B2

公开(公告)日：2018-08-28

申请号：US14406657

申请日：2013-03-12

Applicant: CORTEN HOLDING BV

Inventor： Gustave Paul Corten

IPC: F03D1/06 ,  F01D5/30 ,  F01D5/14

CPC classification number: F01D5/30 ,  F01D5/14 ,  F03D1/0633 ,  F03D1/0641 ,  F05B2240/122 ,  F05B2240/301 ,  F05B2240/32 ,  F05B2250/183 ,  Y02E10/721

Abstract: A rotor blade for a wind turbine having a blade root, a transition piece and an aerodynamic part, wherein the blade root essentially is optimized for fixation of the blade to the hub and the aerodynamic part essentially is optimized to extract energy from the wind and wherein the transition part realizes a beneficial transition between the blade root and the aerodynamic part. The rotor blade can perform better both aerodynamically and structurally compared to a classic design when the blade part located near the axis, approximately the part between 0% L and 50% L is provided with one or more of the following characteristics: more twist than usual, attached flow stimulating measures at the suction side, flow blocking measures at the pressure side, thicker profiles than usual, a triangular shape of the profile back and back twist.

公开(公告)号：US10012210B2

公开(公告)日：2018-07-03

申请号：US14346630

申请日：2012-09-19

Applicant: Young-Lok Oh

Inventor： Young-Lok Oh

IPC: F03D7/02 ,  F03D1/06 ,  F03D7/04

CPC classification number: F03D7/0224 ,  F03D1/06 ,  F03D1/0633 ,  F03D1/0641 ,  F03D7/04 ,  F03D7/041 ,  F03D7/042 ,  F05B2250/72 ,  F05B2250/73 ,  F05B2260/502 ,  F05B2260/503 ,  F05B2260/71 ,  F05B2260/75 ,  F05B2260/76 ,  F05B2260/79 ,  F05B2270/32 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/726

Abstract: A horizontal-axis wind turbine using airfoil blades with uniform in width and thickness, comprising a tower installed vertically from ground surface, a nacelle rotatable connected to center of a vertical axis on top of the tower, a rotating body axially bonded to the nacelle, and one or more blades connecting and forming a pitch angle on the outer periphery of the rotating body, and the blade having an airfoil shape and having uniform in width and thickness in a longitudinal direction and generating torque from lift about a tip of the blade is provided.

公开(公告)号：US09897069B2

公开(公告)日：2018-02-20

申请号：US14417757

申请日：2012-05-11

Applicant: Jang Ho Lee

Inventor： Jang Ho Lee

IPC: F03D1/06

CPC classification number: F03D1/0641 ,  F05B2240/301 ,  Y02E10/721

Abstract: A root airfoil of a wind turbine blade has a suction surface and a pressure surface formed at the upper portion and at the lower portion of a chord line which connects the leading edge and the trailing edge. The operating Reynolds number is 30,000 to 1,000,000, and the angle of attack of the airfoil is 0 to 21 degrees. The maximum lift coefficient is 0.8 to 1.1, and the minimum drag coefficient is 0.02 to 0.07.