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1. 发明授权

US10502187B2 Rotor blade with noise reduction means 有权
公开(公告)号：US10502187B2
公开(公告)日：2019-12-10
申请号：US15587220
申请日：2017-05-04
申请人： Siemens Gamesa Renewable Energy
发明人： Peder Bay Enevoldsen , Stefan Oerlemans , Bodo Richert , Bo Birkemose
IPC分类号： F03D1/06 , F03D7/02 , F03D17/00
CPC分类号： F03D7/0296 , F03D1/0675 , F03D17/00 , F05B2260/962 , F05B2270/333 , Y02E10/721 , Y02E10/723
摘要： A rotor blade with a leading edge and a trailing edge, wherein the rotor blade is designed and configured for being exposed to a fluid flowing substantially from the leading edge to the trailing edge) of the rotor blade, the rotor blade includes at least one sensor for detecting flow characteristics of the fluid, and the rotor blade further includes at least one actuator for producing an anti-noise signal. The sensor and the actuator are both arranged at the surface of the rotor blade, and the actuator is arranged and prepared such that flow-induced edge noise of the rotor blade, which is generated by the fluid, is at least partly cancelled out by the anti-noise signal. The disclosure furthermore relates to a wind turbine including at least one such rotor blade.

2. 发明申请

US20170122286A1 Noise Reduction Surface Treatment for Airfoil 审中-公开
公开(公告)号：US20170122286A1
公开(公告)日：2017-05-04
申请号：US15308181
申请日：2014-10-07
申请人： Virginia Tech Intellectual Properties, Inc.
发明人： William Nathan Alexander , William J. Devenport , Ian A. Clark , Justin W. Jaworski , Stewart Glegg , Nigel Peake , Conor Daly
IPC分类号： F03D1/06
CPC分类号： F03D1/0633 , F03D1/0675 , F05B2240/30 , F05B2260/962 , Y02E10/721
摘要： The present invention relates to airfoils having surface treatments to reduce trailing edge noise. The surface treatment is designed to reduce trailing edge noise by modifying the boundary layer turbulence as it approaches the trailing edge. The surface treatment accomplishes its function by breaking up spanwise-oriented turbulence approaching the trailing edge, thereby reducing the spanwise correlation lengthscales; deflecting the boundary layer turbulence away from the edge; and/or creating spanwise vortices or instability waves to reduce the turbulence-edge interaction.

3. 发明申请

US20140233769A1 DIAPHRAGM ARRANGEMENT FOR GENERATING SOUND 有权
标题翻译：用于产生声音的膜片布置
公开(公告)号：US20140233769A1
公开(公告)日：2014-08-21
申请号：US14348012
申请日：2012-09-14
申请人： EADS DEUTSCHLAND GMBH
发明人： Stefan Storm
IPC分类号： H04R7/04 , B64C21/00 , F02C7/045
CPC分类号： H04R7/04 , B64C21/00 , F02C7/045 , F05B2260/962 , H04R1/06 , H04R7/10 , H04R17/00 , H04R2201/02 , H04R2307/027
摘要： The invention relates to a diaphragm arrangement which is intended to be fitted to a structural component or fixing ring for the purpose of generating sound, having two piezo crystals which are fitted opposite one another on either side of an electrically conductive diaphragm which can oscillate, wherein the piezo crystals are each fastened to the diaphragm, which has a connection contact, in an electrically conductive and force-transmitting manner, and the piezo crystals are each electrically conductively connected to a contact plate on their opposite side. In this case, each contact plate has at least one contact strip which extends in the direction of the structural component and of which the end in each case has an electrical connection contact. The diaphragm arrangement can be excited by electrical voltages which can be applied to the three connection contacts. This produces a secure contact-connection during operation and the contact plates act as heat-conducting plates for dissipating heat from the piezo crystals.
摘要翻译：本发明涉及一种隔膜装置，其旨在安装在用于产生声音的结构部件或固定环上，该隔膜装置具有两个压电晶体，这两个压电晶体彼此相对地安装在可振荡的导电隔膜的任一侧上，其中压电晶体各自以导电和力传递的方式紧固到具有连接接触的隔膜，并且压电晶体各自与其相对侧上的接触板电连接。在这种情况下，每个接触板具有至少一个在结构部件的方向上延伸的接触片，并且每个接触片的端部在每种情况下具有电连接接触。可以通过可施加到三个连接触点的电压来激励光阑布置。这在操作期间产生牢固的接触连接，并且接触板用作用于从压电晶体散热的导热板。

4. 发明申请

US20140072441A1 LOAD AND NOISE MITIGATION SYSTEM FOR WIND TURBINE BLADES 审中-公开
标题翻译：风力涡轮叶片的负载和噪声减轻系统
公开(公告)号：US20140072441A1
公开(公告)日：2014-03-13
申请号：US13611314
申请日：2012-09-12
申请人： Michael J. Asheim , Manjinder J. Singh , Edward A. Mayda
发明人： Michael J. Asheim , Manjinder J. Singh , Edward A. Mayda
IPC分类号： F03D1/06
CPC分类号： F03D1/0608 , F03D1/0633 , F03D1/0683 , F05B2240/311 , F05B2250/182 , F05B2260/962 , Y02E10/721
摘要： A load and noise mitigation system (40) for attachment to a wind turbine blade (20). The system (40) includes a flex member (42) for attachment adjacent the trailing edge (28) of the blade (20) and a noise reduction member (44) associated with the flex member (42). At least a portion of the flex member (42) is configured to deform and change in orientation from a first position (58) to a second activated position (60) in the presence of an air pressure force on at least a portion of the flex member (42).
摘要翻译：一种用于附接到风力涡轮机叶片（20）的负载和噪声减轻系统（40）。系统（40）包括用于附接到叶片（20）的后缘（28）附近的柔性构件（42）和与柔性构件（42）相关联的降噪构件（44）。柔性构件（42）的至少一部分构造成在弹性体的至少一部分上存在空气压力的情况下使取向从第一位置（58）变形到第二活动位置（60）会员（42）。

5. 发明授权

US08157532B2 Wind turbine blade with anti-noise devices 有权
标题翻译：具有防噪声装置的风力发电机叶片
公开(公告)号：US08157532B2
公开(公告)日：2012-04-17
申请号：US12154570
申请日：2008-05-23
申请人： Alvaro Matesanz Gil , Luis Miguel Garcillan Rueda
发明人： Alvaro Matesanz Gil , Luis Miguel Garcillan Rueda
IPC分类号： F03D1/06
CPC分类号： F03D1/0608 , F05B2240/122 , F05B2240/30 , F05B2250/183 , F05B2260/962 , F05D2240/127 , F05D2240/30 , F05D2250/183 , F05D2260/962 , F05D2270/17 , Y02E10/721 , Y10S415/914
摘要： A wind turbine comprising at least a blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides between the leading edge (13) and the trailing edge (15) that includes an anti-noise device (31) placed on the suction side formed by elements (33) that modify the frequency spectra of the boundary layer noise. Preferably the anti-noise device (31) is placed on the suction side between two sections corresponding to chord positions in the range of 40%-95% of the chord length, measured from the leading edge (13).
摘要翻译：一种风力涡轮机，包括具有前缘（13）的空气动力学轮廓的至少一个叶片（11），在前缘（13）和后缘（15）之间的后缘（15）和吸力和压力侧，放置在由元件（33）形成的吸入侧的抗噪声装置（31），其改变边界层噪声的频谱。优选地，抗噪声装置（31）被放置在从前缘（13）测量的对应于弦长的40％-95％范围内的和弦位置的两个部分之间的吸力侧。

6. 发明申请

US20120027590A1 NOISE REDUCER FOR ROTOR BLADE IN WIND TURBINE 有权
标题翻译：用于风轮机转子叶片的减噪器
公开(公告)号：US20120027590A1
公开(公告)日：2012-02-02
申请号：US13149513
申请日：2011-05-31
申请人： Laurent Bonnet
发明人： Laurent Bonnet
IPC分类号： F03D1/06
CPC分类号： F03D1/0641 , F05B2240/30 , F05B2260/962 , Y02E10/721
摘要： A rotor blade assembly and a method for reducing the noise of a rotor blade for a wind turbine are disclosed. The rotor blade has surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade assembly further includes a noise reducer configured on a surface of the rotor blade, the noise reducer including a plurality of noise reduction features. Each of the plurality of noise reduction features includes a first surface and a second surface. The first surface includes a first portion mounted to one of the pressure side or the suction side and a second portion configured to interact with wind flowing past the other of the pressure side or the suction side. The second surface interrupts an aerodynamic contour of the one of the pressure side or the suction side.
摘要翻译：公开了一种转子叶片组件和用于降低风力涡轮机的转子叶片噪声的方法。转子叶片具有限定压力侧，吸力侧，前缘以及在尖端和根部之间延伸的后缘的表面。转子叶片组件还包括构造在转子叶片的表面上的减噪器，该降噪器包括多个降噪特征。多个降噪特征中的每一个包括第一表面和第二表面。第一表面包括安装到压力侧或吸入侧中的一个的第一部分和被配置为与流过压力侧或吸入侧中的另一个的风相互作用的第二部分。第二表面中断压力侧或吸力侧之一的空气动力学轮廓。

7. 发明授权

US06360763B1 Control of flow separation with harmonic forcing and induced separation 有权
标题翻译：通过谐波强迫和诱导分离控制流量分离
公开(公告)号：US06360763B1
公开(公告)日：2002-03-26
申请号：US09839046
申请日：2001-04-20
申请人： Satish Narayanan , Bernd R. Noack , Andrzej Banaszuk , Alexander I. Khibnik
发明人： Satish Narayanan , Bernd R. Noack , Andrzej Banaszuk , Alexander I. Khibnik
IPC分类号： F15C104
CPC分类号： F15D1/003 , F05B2260/962 , F15D1/06 , Y10T137/0391 , Y10T137/2185 , Y10T137/2196 , Y10T137/2224
摘要： A diffuser (7) has a step (12) in the surface (9) just upstream of a point where boundary layer separation might occur. An acoustic jet (22) has a nozzle (17) immediately downstream of the step (12); the acoustic jet is driven (25) by a plurality of frequencies, one or more of which are subharmonics of another of them, and having different phases.
摘要翻译：漫射器（7）在表面（9）中具有在可能发生边界层分离的点的上游的步骤（12）。声射流（22）在台阶（12）的下游具有喷嘴（17）。声波被多个频率驱动（25），其中一个或多个是它们中的另一个的次谐波，并且具有不同的相位。

8. 发明授权

US3639749A Imitation candle 失效
标题翻译：仿制品
公开(公告)号：US3639749A
公开(公告)日：1972-02-01
申请号：US3639749D
申请日：1969-01-08
申请人： BENGT ERLING BECKMAN
发明人： BECKMAN BENGT ERLING
IPC分类号： F21S10/04 , F21P1/02
CPC分类号： F21S10/04 , F05B2260/962 , F21W2121/00 , Y10S362/81
摘要： An imitation candle having a substantially cylindrical body with an electric incandescent lamp mounted therein such that the bulb protrudes from one end of the body. The lamp is suspended within the body by an elastic material, a plurality of arms, or a spring, and is capable of substantially free arcuate movement about a point in the proximity of one end of the body. The degree of arcuate movement is limited by stops engaging the lamp, and the lamp is locked against movement by a latch that operates in response to the cessation of electric power to the lamp to seize the lamp. A motor can be provided for motivating the arcuate movement of the lamp.
摘要翻译：一种仿蜡烛，其具有安装在其中的电白炽灯的基本圆筒体，使得灯泡从身体的一端突出。灯通过弹性材料，多个臂或弹簧悬挂在体内，并且能够围绕身体一端附近的点基本上自由地弧形运动。通过停止接合灯的方式限制弓形运动的程度，并且灯被锁定器锁定，闩锁响应于停止对灯的电力的捕获而起作用。可以提供电动机以激励灯的弓形运动。

9. 发明公开

US20240026859A1 METHOD FOR MODIFYING A SOUND EMISSION OF A WIND POWER INSTALLATION 审中-公开
公开(公告)号：US20240026859A1
公开(公告)日：2024-01-25
申请号：US18354470
申请日：2023-07-18
申请人： Wobben Properties GmbH
发明人： Henning Küwen
IPC分类号： F03D7/02
CPC分类号： F03D7/0296 , F05B2270/333 , F05B2220/706 , F05B2260/962 , F05B2260/20
摘要： A method for modifying a sound emission of a wind power installation, wherein the wind power installation comprises a nacelle and a generator with a rotor which is adjustable in terms of its rotational speed, and the rotor has at least one rotor blade, the generator produces sound with at least one characteristic generator sound frequency which depends on the rotor rotational speed, the wind power installation has at least one fan for cooling the nacelle and/or generator, the at least one fan is adjustable in terms of a fan rotational speed, wherein the at least one fan produces sound with a characteristic fan sound frequency which depends on the fan rotational speed, and the fan rotational speed of the at least one fan is set in such a way on the basis of the rotor rotational speed that the fan sound frequency deviates from the at least one generator sound frequency. Tonal sounds in wind power installations, or the perception thereof, are intended to be reduced in particular.

10. 发明授权

US09494134B2 Noise reducing extension plate for rotor blade in wind turbine 有权
标题翻译：风力发电机转子叶片降噪延长板
公开(公告)号：US09494134B2
公开(公告)日：2016-11-15
申请号：US14085047
申请日：2013-11-20
申请人： General Electric Company
发明人： Kevin Wayne Kinzie
IPC分类号： F03D1/06
CPC分类号： F03D1/0675 , F05B2240/30 , F05B2260/962 , Y02E10/721 , Y10T29/49336
摘要： Rotor blade assemblies and methods for constructing rotor blade assemblies are provided. A rotor blade assembly may include a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge and a trailing edge each extending between a tip and a root, the rotor blade defining a span and a chord. The rotor blade assembly further includes an extension plate mounted to one of the pressure side or the suction side, the extension plate extending in the chord-wise direction between a first end and a second end, the second end extending beyond the trailing edge. The rotor blade assembly further includes a filler substrate provided on an inner surface of the extension plate and the trailing edge, the filler substrate tapering from the trailing edge towards the second end.
摘要翻译：提供了用于构造转子叶片组件的转子叶片组件和方法。转子叶片组件可以包括转子叶片，其具有限定压力侧，吸力侧，前缘和后缘的转子叶片，每个叶片在尖端和根部之间延伸，转子叶片限定跨度和弦。转子叶片组件还包括安装到压力侧或吸入侧中的一个的延伸板，延伸板在第一端和第二端之间沿着弦方向延伸，第二端延伸超过后缘。转子叶片组件还包括设置在延伸板和后缘的内表面上的填充衬底，填充衬底从后缘朝向第二端逐渐变细。

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