CN100373047C - 带有防噪声外壳体的风力涡轮 - Google Patents

带有防噪声外壳体的风力涡轮 Download PDF

Info

Publication number
CN100373047C
CN100373047C CNB2004100770775A CN200410077077A CN100373047C CN 100373047 C CN100373047 C CN 100373047C CN B2004100770775 A CNB2004100770775 A CN B2004100770775A CN 200410077077 A CN200410077077 A CN 200410077077A CN 100373047 C CN100373047 C CN 100373047C
Authority
CN
China
Prior art keywords
tower
noise
noise prevention
wind turbine
prevention housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2004100770775A
Other languages
English (en)
Other versions
CN1594840A (zh
Inventor
C·黑塞尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of CN1594840A publication Critical patent/CN1594840A/zh
Application granted granted Critical
Publication of CN100373047C publication Critical patent/CN100373047C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/909—Air stack or shaft having natural fluid current motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/06—Supports for natural fluid current motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Hydraulic Turbines (AREA)

Abstract

为了减少带有具有外侧(8)的塔(1)的风力涡轮的噪声。形成一个防噪声壳体(4)。该防噪声壳体至少部分地包围该塔(1)的外侧(8)，并离开该塔(1)的外侧(8)一定距离安置。在该塔壁(2)和该防噪声壳体(4)之间保持一个气隙(24)。从该塔壁(2)发射的噪声、被该防噪声壳体(4)吸收。该防噪声壳体可以由防水的外层(6)和指向该塔壁(2)的阻尼层(10)构成。

Description

带有防噪声外壳体的风力涡轮
技术领域
本发明涉及风力涡轮领域，并涉及具有外侧的塔的风力涡轮。
背景技术
风力涡轮正日益增多地用于发电。风力涡轮主要由一个塔，一个安置在该塔上的吊舱，和一个转子组成。该转子由一根轴可转动地支承在该吊舱中。在现代的风力涡轮中，一般，该转子具有三个转子叶片。具有空气动力学轮廓的该转子叶片经受由逆风流动产生的上升力，使该转子产生回转运动。该转子轴将这个回转运动传递给安置在该吊舱内的发电机进行发电。为了提高发电机的转数，该回转运动的传递由一个齿轮箱来实现。
在风力涡轮工作过程中散布噪声。法律上对技术系统的平均噪声发射强度有限制。在德国，根据DIN标准2058，这种法律限制为：日间在工业区域最大噪声强度允许为65dB(A)，夜间在纯居住区只允许35dB(A)。风力涡轮也必需满足这些标准值。
风力涡轮产生的噪声一方面是由风撞击转子叶片和该塔产生的大气噪声；另一方面由运动的机械零件产生的噪声(结构噪声)。后者一般在该吊舱中由发电机和齿轮箱，还有辅助设备(如冷却通风机，泵)以及轴承和转动该吊舱的方位驱动装置产生。结构噪声可以具有由该齿轮箱的互相啮合的齿的频率产生的确定的频率峰值(啮合频率)。该噪声作为冲击音由现有的结构传递，并使周围区域中的大的表面发射。带有较大外表面的该塔形成一个特别好的发射表面。另外，该塔形成一个共振器，在1～500HZ范围内将频率放大。
为了减小噪声，提出了各种建议。例如，在US6224341B(EdgeInnovations & Technology)中，提出了用低密度的粒状材料充填在运动的空心零件中来减小该零件产生的噪声。这样，实现了内部阻尼。然而，这种解决方法需要重新设计现有的系统。DE19930751A1(FranzMitsch)采取了一种不同的方法。为了中断冲击噪声的传播通道，齿轮箱和发电机的软轴承应将这些噪声源与其他零件，特别是与该塔隔离。最后，从US6,213,721 B1(Thomson Marconi Sonar有限公司)中知道，利用阻尼塑料层将金属板固定在该塔上。调整该塑料层的尺寸和该金属板的质量，以减小某些频率的辐射。
这些建议所达到的噪声降低时常不能满足法律的要求，或经济上不合算。
发明内容
因此，需要有一种简单可行的减少风力涡轮噪声辐射的改进方法。
根据本发明，提供了一种风力涡轮，包括：具有一外侧的一个塔；和一个防噪声壳体；该壳体至少部分地包围该塔的外侧，并利用至少一个振动阻尼件离开该塔的外侧一定距离配置。
至少部分地包围该塔的该防噪声壳体的目的是吸收从该塔发射的噪声，因此可以相当大地减小风力涡轮发出的噪声。该防噪声壳体形成一种防噪声包层，该包层离开该塔的外侧一定距离。另外，在该塔的壁和该防噪声壳体之间保持一个气隙。因此，在该塔和该防噪声壳体之间没有噪声的直接传递通道，使得噪声不能作为冲击噪声，从该塔传递至该防噪声壳体。该塔壁可以自由振动，并可象不带有该防噪声壳体的塔一样，将这些振动作为噪声发出。然而，正常情况下发射得很广的该噪声被该防噪声壳体阻截和吸收。
这种方法的优点是，只可以有一定余量地修正该塔壁的振动特性。以后，如需要减小噪声，可用该防噪声壳体包围该塔。
在本发明的一个实施例中，该防噪声壳体包括一个外层和一个指向该塔的阻尼层。该阻尼层可以广泛地吸收噪声。相反，该外层用作该防噪声壳体的稳定器，并保护该阻尼层不受气候的影响。例如，该外层可用玻璃纤维增强的塑料或铝制成。最好，该防噪声壳体作成带有一个封闭的防水外层。
在本发明的另一个实施例中，该防噪声壳体利用一个支承固定在该塔的外侧上。因此，该支承必需保证将该塔壁和该防噪声壳体之间的振动隔离，即必需是可衰减振动的。它可以是在该防噪声壳体和该塔壁之间一个振动阻尼件。
由于主要的噪声辐射发生在该塔的上部，因此该防噪声壳体只包围该塔的上部，(只包围该塔上部的1/3)就足够了。
附图说明
下面，结合附图来说明本发明的具体实施例。其中：
图1为塔壁的一部分；
图2为带有第一个支承的防噪声壳体；
图3为带有第二个支承的防噪声壳体；和
图4为上部带有一个防噪声壳体的吊塔的风力涡轮。
具体实施方式
下面说明图示的优选实施例。每一个实施例只是为了更详细地说明本发明，而不是对本发明的限制。例如，为了在本发明的范围内，得到进一步改进的实施例，在一个实施例中所示的零件可以用在另一个实施例中，或与其他实施例的零件综合。
图1表示风力涡轮的塔1的一部分。该塔的壁用2表示，固定在该塔壁2的外侧8上的防噪声壳体用4表示。该塔壁2和防噪声壳体4彼此由气隙24隔开。该防噪声壳体4只利用支承12固定在该塔壁2上。为了更好地了解。在图2中将用圆圈标出的部分用较大的比例画出。
防噪声壳体4由一个外层6和指向该塔壁2的一个阻尼层10构成。防水设计的外层可由铝或玻璃纤维增强的塑料制成。这些材料的净重较小，同时具有足够的稳定性和经得起气候变化的影响。如果必要，该外层6可以带有一个盖，以进步改善经受气候变化的能力。同时，该外层6又可作为阻尼层10的载体。该阻尼层可由聚氨酯泡沫、蜜胺泡沫或玻璃纤维绒线构成。20～50cm厚的阻尼层可以达到良好的吸收噪声的效果。
尺寸为10～50cm的气隙24保持在该防噪声壳体4和该塔壁2的外侧8之间。因此，该塔壁8可以自由振动，从而发射噪声。
为了避免该塔壁2的振动作为冲击的噪声直接传递至该防噪声壳体2上，该防噪声壳体利用一个隔振支承12固定在该塔壁2上。在这个例子中，该支承由多个压板14构成，这些压板由螺钉16固定在该塔壁2上。在压板的中间凸形部分上，每一个压板14支承一个阻尼件18，该阻尼件可以为与该防噪声壳体4固定的一个橡胶滚子。该阻尼件18利用螺钉20固定在压板，并用螺钉22固定在该防噪声壳体上。因此，该防噪声壳体4和压板14之间的连接只是利用该阻尼件18实现，从而该塔壁和防噪声壳体之间的冲击噪声传递路径被中断。因此，该塔壁2不能将其振动直接传递至该防噪声壳体4，而只是将振动作为噪声发射。然而，该发射的噪声被包围该塔的防噪声壳体阻截和吸收。因此，可将该防噪声壳体看作是一个防噪声包层。为了很好地吸收噪声和保护该阻尼层10，该防噪声壳体4的外部封闭，与其外层6一起形成一个封闭的防水前端。
在图3中，该防噪声壳体4利用一个稍微不同的支承26与该塔1连接。该防噪声壳体本身和图2所示。对于所示的支承26，该阻尼件19直接用螺钉28拧紧在该塔壁2的外面。在与该塔壁相对的一侧上，该阻尼件19固定一个弯曲的轨道30。该轨道30穿过该阻尼件10，与该防噪声壳体4的外层6牢固地固定。
图4表示带有一个塔的风力涡轮的一个可能的实施例。在该塔1的顶部设有一个吊舱32，它容纳带有转子轴36的驱动链条，齿轮箱38和发电机40可绕支点转动。该转子轴36将包括三个转子叶片44的转子42，与该齿轮箱38连接。另一些带有一个外部防噪声壳体的风力涡轮的实施例可以设计成不带齿轮箱。该风力涡轮通过地基46固定在地面上。在塔的上部1/3处，该塔1包含被该防噪声壳体4包围。该防噪声壳体阻截和吸收环该塔壁发出的噪声。
零件清单
1             塔
2             塔壁
4             防噪声壳体
6             外层
8             塔的外侧
10            阻尼层
12，26        支承
14            压板
16，20，2，28 螺钉
18，19        阻尼件
24            气隙
30            轨道
32            吊舱
36            转子轴
38            齿轮箱
40            发电机
42            转子
44            转子叶片
46           地基

Claims (6)

1.一种风力涡轮，包括：
具有一外侧的一个塔(1)；和
一个防噪声壳体(4)；该壳体至少部分地包围该塔(1)的外侧(8)，并利用至少一个振动阻尼件(18)离开该塔(1)的外侧(8)一定距离配置。
2.如权利要求1所述的风力涡轮，其特征为，该防噪声壳体(4)包括一个外层(6)和指向该塔(1)的一个阻尼层(10)。
3.如权利要求2所述的风力涡轮，其特征为，该外层(6)由玻璃纤维增强的塑料或铝制成。
4.如权利要求1～3中任何一项所述的风力涡轮，其特征为，该防噪声壳体(4)利用一个支承(12，26)固定在该塔(7)上。
5.如权利要求4所述的风力涡轮，其特征为，该支承(12，26)包括至少一个振动阻尼件(18)。
6.如权利要求1所述的风力涡轮，其特征为，该防噪声壳体(4)只在塔(1)的上部完全包围该塔(1)。
CNB2004100770775A 2003-09-10 2004-09-10 带有防噪声外壳体的风力涡轮 Expired - Fee Related CN100373047C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341759.1 2003-09-10
DE10341759A DE10341759A1 (de) 2003-09-10 2003-09-10 Windkraftanlage mit äusserer Schallhülle

Publications (2)

Publication Number Publication Date
CN1594840A CN1594840A (zh) 2005-03-16
CN100373047C true CN100373047C (zh) 2008-03-05

Family

ID=34129733

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100770775A Expired - Fee Related CN100373047C (zh) 2003-09-10 2004-09-10 带有防噪声外壳体的风力涡轮

Country Status (7)

Country Link
US (1) US7144216B2 (zh)
EP (1) EP1515040B1 (zh)
CN (1) CN100373047C (zh)
AU (1) AU2004208733A1 (zh)
CA (1) CA2480381A1 (zh)
DE (2) DE10341759A1 (zh)
ES (1) ES2289445T3 (zh)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL216196B1 (pl) * 2003-02-12 2014-03-31 Aloys Wobben Instalacja wiatrowa
JP2006336555A (ja) * 2005-06-02 2006-12-14 Shinko Electric Co Ltd 風力発電設備用の円筒部材
CA2635656C (en) * 2005-12-30 2014-07-08 Tracy Livingston Lifting system and apparatus for constructing wind turbine towers
US7427814B2 (en) * 2006-03-22 2008-09-23 General Electric Company Wind turbine generators having wind assisted cooling systems and cooling methods
US20080080946A1 (en) * 2006-10-02 2008-04-03 Tracy Livingston Expansion pin system for a wind turbine structural tower
US20080078083A1 (en) * 2006-10-02 2008-04-03 Tracy Livingston Drive pin system for a wind turbine structural tower
EP2069591A4 (en) * 2006-10-02 2010-12-01 Wind Tower Systems Llc LIFTING SYSTEM AND APPARATUS FOR BUILDING AND PROTECTING WIND TURBINE TOWERS
US8069634B2 (en) 2006-10-02 2011-12-06 General Electric Company Lifting system and apparatus for constructing and enclosing wind turbine towers
US20110027067A1 (en) * 2007-03-23 2011-02-03 Flodesign Wind Turbine Corporation Coated shrouded wind turbine
US8021100B2 (en) 2007-03-23 2011-09-20 Flodesign Wind Turbine Corporation Wind turbine with mixers and ejectors
US20100028132A2 (en) * 2007-03-23 2010-02-04 Flodesign Wind Turbine Corporation Wind turbine with mixers and ejectors
US20110020107A1 (en) * 2007-03-23 2011-01-27 Flodesign Wind Turbine Corporation Molded wind turbine shroud segments and constructions for shrouds
US8573933B2 (en) * 2007-03-23 2013-11-05 Flodesign Wind Turbine Corp. Segmented wind turbine
US20100314885A1 (en) * 2007-03-23 2010-12-16 Flodesign Wind Turbine Corporation Shrouded wind turbine with rim generator and halbach array
US20100316493A1 (en) * 2007-03-23 2010-12-16 Flodesign Wind Turbine Corporation Turbine with mixers and ejectors
US8622688B2 (en) * 2007-03-23 2014-01-07 Flodesign Wind Turbine Corp. Fluid turbine
US8657572B2 (en) 2007-03-23 2014-02-25 Flodesign Wind Turbine Corp. Nacelle configurations for a shrouded wind turbine
US20090230691A1 (en) * 2007-03-23 2009-09-17 Presz Jr Walter M Wind turbine with mixers and ejectors
US20110014038A1 (en) * 2007-03-23 2011-01-20 Flodesign Wind Turbine Corporation Wind turbine with skeleton-and-skin structure
DE102007019907B4 (de) * 2007-04-27 2009-04-30 Nordex Energy Gmbh Vorrichtung zur aktiven Dämpfung eines Triebstrangs bei einer Windenergieanlage
US7927078B2 (en) * 2007-07-12 2011-04-19 General Electric Company Wind turbine blade tip vortex breakers
US20090097976A1 (en) * 2007-10-15 2009-04-16 General Electric Company Active damping of wind turbine blades
WO2009080028A2 (en) * 2007-12-21 2009-07-02 Vestas Wind Systems A/S A wind turbine, a method for reducing noise emission from a wind turbine tower and use of a wind turbine
DE102008018790A1 (de) * 2008-04-15 2009-10-22 Wobben, Aloys Windenergieanlage mit Stromschienen
US8016268B2 (en) 2008-05-30 2011-09-13 Wind Tower Systems, Llc Wind tower service lift
AU2009330323B2 (en) 2008-12-15 2016-03-24 Ge Wind Energy, Llc Structural shape for wind tower members
US20100143128A1 (en) * 2008-12-23 2010-06-10 General Electric Company Wind turbine yaw bearing determination
DE102009017586A1 (de) * 2009-04-19 2010-10-28 Timber Tower Gmbh Turm für eine Windkraftanlage
DE202009014235U1 (de) 2009-10-21 2010-01-14 Glunz, Josef Horizontalachsen Windgenerator
US10137542B2 (en) 2010-01-14 2018-11-27 Senvion Gmbh Wind turbine rotor blade components and machine for making same
DK2752577T3 (da) 2010-01-14 2020-06-08 Senvion Gmbh Vindmøllerotorbladkomponenter og fremgangsmåder til fremstilling heraf
CN102434404A (zh) * 2011-12-14 2012-05-02 三一电气有限责任公司 一种风机及其塔筒
KR102003066B1 (ko) * 2012-11-22 2019-07-24 두산중공업 주식회사 풍력발전기의 방음장치 및 이를 포함하는 풍력발전기
KR101505543B1 (ko) * 2013-11-27 2015-03-24 삼성중공업(주) 풍력 발전기
DE102014201507A1 (de) * 2014-01-28 2015-07-30 Wobben Properties Gmbh Windenergieanlage mit einer Faserwicklung
US20150361958A1 (en) * 2014-06-16 2015-12-17 Eric James Wilmer Wood Method for reducing noise, vibrations, and pressure pulsations associated with aerodynamic interactions between wind turbine blade wakes and the wind turbine tower
ES2657709T3 (es) 2015-04-21 2018-03-06 Nordex Energy Gmbh Torre para una planta de energía eólica y procedimiento para el montaje de una planta de energía eólica
AU2016267963B2 (en) 2015-05-25 2020-08-13 Dotterel Technologies Limited A shroud for an aircraft
ITUB20154889A1 (it) * 2015-10-20 2017-04-20 Windfin Bv Sistema comprendente un gruppo rotante e relativo metodo di produzione
WO2019022618A1 (en) 2017-07-24 2019-01-31 Dotterel Technologies Limited ENVELOPE
CN112513976A (zh) 2018-05-16 2021-03-16 多特瑞尔技术有限公司 用于音频捕获的系统和方法
US11542924B2 (en) * 2019-08-16 2023-01-03 High Alert Institute, Inc. Multi-substrate noise mitigation system for monopole towers of wind turbine systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2353825A (en) * 1999-09-01 2001-03-07 David Lovett Ewbank Teal Wind turbine tower having rotatable shroud/fairing
US6213721B1 (en) * 1993-11-09 2001-04-10 Thomson Marconi Sonar Limited Noise emission reduction
US6224341B1 (en) * 1996-09-17 2001-05-01 Edge Innovations & Technology, Llc Damping systems for vibrating members

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK151489C (da) * 1977-02-04 1988-06-13 Ottosen G O Aerodynamisk stroemningsaendrer for den til en vindkraftmaskine hoerende baerende konstruktion
GB2283803B (en) * 1993-11-09 1997-05-14 Marconi Gec Ltd Noise emission reduction
DE69511128T2 (de) * 1994-02-09 2000-03-09 Bridgestone Corp Lärmschutzwand
DE19832921A1 (de) * 1998-07-22 2000-02-10 Joachim Kretz Turmkonstruktion, insbesondere für Windkraftanlagen
DE19947211A1 (de) * 1999-10-01 2001-04-12 Aloys Wobben Rotorblatt für eine Windenergieanlage
DE19930751A1 (de) * 1999-07-02 2001-01-04 Franz Mitsch Verfahren zur Reduzierung von Schwingungen in Windkraftanlagen
DE20004822U1 (de) * 2000-03-17 2000-05-18 Wobben Aloys Windenergieanlage
US6765309B2 (en) * 2001-12-19 2004-07-20 Joseph J. Tallal, Jr. System and building for generating electricity using wind power

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213721B1 (en) * 1993-11-09 2001-04-10 Thomson Marconi Sonar Limited Noise emission reduction
US6224341B1 (en) * 1996-09-17 2001-05-01 Edge Innovations & Technology, Llc Damping systems for vibrating members
GB2353825A (en) * 1999-09-01 2001-03-07 David Lovett Ewbank Teal Wind turbine tower having rotatable shroud/fairing

Also Published As

Publication number Publication date
CN1594840A (zh) 2005-03-16
CA2480381A1 (en) 2005-03-10
US7144216B2 (en) 2006-12-05
EP1515040A1 (en) 2005-03-16
DE602004007994D1 (de) 2007-09-20
DE602004007994T2 (de) 2008-04-30
ES2289445T3 (es) 2008-02-01
US20050186076A1 (en) 2005-08-25
DE10341759A1 (de) 2005-04-21
AU2004208733A1 (en) 2005-03-24
EP1515040B1 (en) 2007-08-08

Similar Documents

Publication Publication Date Title
CN100373047C (zh) 带有防噪声外壳体的风力涡轮
CA2531278C (en) Wind turbine generator
ZA200610372B (en) Axle-driven generator for railway carriages and the like
US20080272602A1 (en) Wind Turbine
EP1780409A4 (en) WIND TURBINE DEVICE
PL367783A1 (en) Lubrication of a pitch angle adjusting device of a rotor blade of a windmill
CN207339530U (zh) 一种风力发电机的降噪装置
WO2005107425A3 (en) Offshore windmill electric generator
CA2614925A1 (en) Belt-driven drive-train
WO2011071841A3 (en) Wind-driven electric power generation system adapted for mounting along the side of vertical, man-made structures such as large buildings
CN111287916B (zh) 一种用于风机的调谐碰撞惯容质量阻尼装置
CN111262382A (zh) 一种基于电磁感应原理的电机减震消音装置
CN206673759U (zh) 一种抗振的静音发电机外壳
DE102004030929B3 (de) Windenergieanlage
CN208619592U (zh) 轨道车辆空调压缩机减振降噪装置
CN213585412U (zh) 一种具有降噪机构的吸尘器电机
CN111224506A (zh) 一种可调式减震电机
CN110022031B (zh) 一种交流发电机
JP6345093B2 (ja) 風力発電設備
KR101505543B1 (ko) 풍력 발전기
EP0657647A1 (en) Noise reduction for wind turbine
CN110953121A (zh) 一种环保型低噪风力发电机
CN207213112U (zh) 用于风力发电机组的齿轮箱的减振支撑装置
CN201963492U (zh) 风力发电机减震装置
CN215566366U (zh) 一种风力发电机的叶片减震装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080305

Termination date: 20100910