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公开(公告)号:US12116975B1
公开(公告)日:2024-10-15
申请号:US18746106
申请日:2024-06-18
Inventor: Shafiqur Rehman , Luai M. Alhems , Md. Mahbub Alam , Longjun Wang
CPC classification number: F03D1/0675 , F03D17/00 , F05B2240/303 , F05B2240/304 , F05B2240/306 , F05B2250/18 , F05B2260/70 , F05B2260/83
Abstract: A turbine blade for a wind turbine, the turbine blade has a blowing and suction provision in form of a plurality of arrays of blowing and suction holes defined on a curved suction surface of the turbine blade. An apparatus for turbine blade testing includes the turbine blade. The apparatus also includes a wind tunnel, a blowing source, and a suction source. The wind tunnel includes a wind channel having first and second end plates for mounting the turbine blade. A method of testing air flow in a turbine blade involves changing holes used for blowing and suction and determining a momentum coefficient for those various holes; and varying angle of attack with measurement of lift/drag ratio.
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公开(公告)号:US12037977B2
公开(公告)日:2024-07-16
申请号:US18035204
申请日:2021-11-26
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor: Motoshi Harada , Kai Karikomi , Wakako Ariki , Yasuaki Shiraishi
IPC: F03D1/06
CPC classification number: F03D1/06495 , F05B2240/303 , F05B2240/3062
Abstract: A vortex generator for wind turbine blade includes: a platform; and at least one fin disposed projecting from an upper surface of the platform, and including a leading edge and a trailing edge. A rear end surface of the at least one fin, including the trailing edge, has a shape inclined backward as a distance from a bottom surface of the platform increases in a height direction of the fin.
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公开(公告)号:US20240102444A1
公开(公告)日:2024-03-28
申请号:US18372613
申请日:2023-09-25
Applicant: SJK Energy Solutions, LLC
Inventor: Steven J. KANSTOROOM , Maximilian de Arriz , Joseph M. Galliera, III
IPC: F03D1/06
CPC classification number: F03D1/0677 , F05B2240/302 , F05B2240/303 , F05B2240/304
Abstract: A fluid flow turbine blade assembly for a turbine rotor includes a blade and a deflector extending spanwise along at least a portion of the blade. At least a portion of an upstream surface of the deflector, along at least a portion of a span of the deflector, has a concave shape in a chordwise direction such that at least a portion of a chord line between leading and trailing edges of the deflector is disposed outside a profile defined between the upstream surface and a downstream surface of the deflector. The deflector has a substantially uniform thickness or a chord-wise varying thickness between the upstream surface and the downstream surface. The deflector alters fluid flow over the blade so as to increase the blade's contribution to global torque generated by the assembly so that, with the deflector's torque contribution, the global torque of the assembly is greater than the global torque that would be generated by the blade alone without the benefit of the deflector.
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公开(公告)号:US12104571B2
公开(公告)日:2024-10-01
申请号:US18014400
申请日:2021-06-29
Applicant: LM WP PATENT HOLDING A/S
Inventor: Andreas Herrig , Martin Stettner , Benjamin Patrick Hallissy
IPC: F03D1/06
CPC classification number: F03D1/0675 , F05B2240/303 , F05B2240/3052 , F05B2240/3062
Abstract: A rotor blade assembly for mitigating stall-induced vibrations of a wind turbine during standstill includes at least one protrusion secured to the leading-edge of a rotor blade and defining an extended leading edge. The protrusion(s) wraps around a portion of the rotor blade from the suction side to the pressure side of the rotor blade. The protrusion(s) has a root-side face and a tip-side face disposed opposite thereof. The root-side face is arranged at an angle relative to a chordwise reference line. The angle is greater than zero degrees and less than or equal to 45 degrees with respect to the chordwise reference line. The protrusion(s) is configured to affect a chordwise airflow and thereby mitigate a stall-induced vibration.
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公开(公告)号:US12104570B2
公开(公告)日:2024-10-01
申请号:US18035768
申请日:2021-11-10
Applicant: Siemens Gamesa Renewable Energy A/S
Inventor: Giridhar Ramanujam
CPC classification number: F03D1/0643 , F03D1/0648 , F03D80/40 , F05B2240/303 , F05B2240/311 , F05B2280/5001
Abstract: A turbine blade for a wind turbine is provided, including a blade body with a leading-edge, wherein the blade body is provided with a form changing device covering the leading-edge and extending at least partially along the leading-edge, which form changing device includes a shell fixed to the blade body, which shell is movable by an actuator between a first position close to the leading-edge and a second position distanced to the leading-edge.
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公开(公告)号:US12098699B2
公开(公告)日:2024-09-24
申请号:US18152860
申请日:2023-01-11
Inventor: Shafiqur Rehman , Luai M. Alhems , Md. Mahbub Alam , Longjun Wang
CPC classification number: F03D1/0675 , F03D17/00 , F05B2240/303 , F05B2240/304 , F05B2240/306 , F05B2250/18 , F05B2260/70 , F05B2260/83
Abstract: A turbine blade for a wind turbine, the turbine blade has a blowing and suction provision in form of a plurality of arrays of blowing and suction holes defined on a curved suction surface of the turbine blade. An apparatus for turbine blade testing includes the turbine blade. The apparatus also includes a wind tunnel, a blowing source, and a suction source. The wind tunnel includes a wind channel having first and second end plates for mounting the turbine blade. A method of testing air flow in a turbine blade involves changing holes used for blowing and suction and determining a momentum coefficient for those various holes; and varying angle of attack with measurement of lift/drag ratio.
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公开(公告)号:US20240229763A9
公开(公告)日:2024-07-11
申请号:US18278262
申请日:2022-02-14
Applicant: LM WIND POWER A/S
Inventor: Andreas HERRIG , Horacio BULACIO , Hans MINNEE
IPC: F03D1/06
CPC classification number: F03D1/0688 , F05B2240/303 , F05B2250/183 , F05B2260/96
Abstract: The present invention relates to a leading edge protection for a wind turbine blade, wherein a leading edge axis of the leading edge protection is configured to be fitted on at least part of a leading edge of a wind turbine blade and the leading edge protection is configured to extend between the leading edge and a first edge downstream a first side of the wind turbine blade as well as between the leading edge and a second edge downstream a second side of the wind turbine blade, wherein the leading edge protection comprises a first part and wherein the first edge is configured to be non-parallel with the leading edge of the wind turbine blade along the first part of the leading edge protection. The present invention further relates to a wind turbine blade comprising the leading edge protection and a wind turbine comprising the wind turbine blade. Finally, the present invention relates to a method for protecting a leading edge of a wind turbine blade arranged on a wind turbine and a leading edge protection obtainable by that method.
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公开(公告)号:US11976627B2
公开(公告)日:2024-05-07
申请号:US18005239
申请日:2020-07-22
Applicant: NABRAWIND TECHNOLOGIES, SL
Inventor: Eneko Sanz Pascual , Javier Callen Escartín , Javier Monreal Lesmes , Ana Fernández García
CPC classification number: F03D1/0675 , F03D80/30 , F05B2240/302 , F05B2240/303 , F05B2240/304 , F05B2260/301 , F05B2280/2003
Abstract: A fairing for a modular blade of a wind turbine generator, comprising including a joining zone disposed between two consecutive modules of the modular blade. The fairing is comprised of different components; the suction side fairing, the pressure side fairing and auxiliary components, such as tabs to facilitate the joining of the components. The leading edge fairing and the trailing edge fairing are constituted of an elastomeric material, preferably silicone, supported in a rigid glass fibre framework in order to absorb the warping experienced by the blade during the operation thereof. The attachment elements employed to join the fairings together and to the setbacks of the blade shell are rivets or similar. All the fairings incorporate the metal elements necessary to be equipotentially bonded, being linked to the lighting down-drop.
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公开(公告)号:US11952976B2
公开(公告)日:2024-04-09
申请号:US18115251
申请日:2023-02-28
Applicant: Natel Energy, Inc.
Inventor: Abraham D. Schneider , Sterling Marina Watson
CPC classification number: F03B3/121 , F03B3/125 , F03B3/04 , F03B3/126 , F03B13/10 , F05B2210/11 , F05B2220/32 , F05B2240/12 , F05B2240/242 , F05B2240/303 , F05B2250/70 , F05B2260/84
Abstract: A runner for a hydraulic turbine configured to reduce fish mortality. The runner includes a hub and a plurality of blades extending from the hub. Each blade includes a root connected to the hub and a tip opposite the root. Each blade further includes a leading edge opposite a trailing edge, and a ratio of a thickness of the leading edge to a diameter of the runner can range from about 0.06 to about 0.35. Further, each blade has a leading edge that is curved relative to a radial axis of the runner.
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公开(公告)号:US20230374970A1
公开(公告)日:2023-11-23
申请号:US18026609
申请日:2021-09-13
Inventor: Jorge Alvarez Redondo , Iñakì Hermosilla Azanza , Nicolas Rojo Saiz
IPC: F03D1/06
CPC classification number: F03D1/0683 , F05B2240/302 , F05B2240/303 , F05B2260/301 , F05B2240/304 , F05B2230/23
Abstract: A rotor blade of a wind turbine include sa first rotor blade segment having a first shell portion, a second rotor blade segment having a second shell portion and a joint connecting the first rotor blade segment with the second rotor blade segment between the first shell portion and the second shell portion, whereby the rotor blade further includes a fairing, the fairing covering the joint and being attached to the first shell portion and the second shell portion by means of an adhesive. Further provided is a wind turbine having this rotor blade.
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