[go: up one dir, main page]

NO943757L - Vindturbin - Google Patents

Vindturbin

Info

Publication number
NO943757L
NO943757L NO943757A NO943757A NO943757L NO 943757 L NO943757 L NO 943757L NO 943757 A NO943757 A NO 943757A NO 943757 A NO943757 A NO 943757A NO 943757 L NO943757 L NO 943757L
Authority
NO
Norway
Prior art keywords
wind turbine
rotor
blade
found
during operation
Prior art date
Application number
NO943757A
Other languages
English (en)
Other versions
NO943757D0 (no
Inventor
Antonius Gerardus Marie Dassen
Franklin Hagg
Original Assignee
Stork Product Engineering Bv
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 Stork Product Engineering Bv filed Critical Stork Product Engineering Bv
Publication of NO943757D0 publication Critical patent/NO943757D0/no
Publication of NO943757L publication Critical patent/NO943757L/no

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/0608Rotors characterised by their aerodynamic shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction elements
    • F03D1/0675Rotors characterised by their construction elements of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00Geometry
    • F05B2250/10Geometry two-dimensional
    • F05B2250/18Geometry two-dimensional patterned
    • F05B2250/183Geometry two-dimensional patterned zigzag
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00Function
    • F05B2260/96Preventing, counteracting or reducing vibration or noise
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

For å redusere støyplagen som under drift bevirkes av rotorbladene (3, 4, 5) av rotoren av en vindturbin er den bakre kant (6) av hvert blad ujevnt utformet. Spesielt har en sagtakkform med en toppvinkel mindre enn omtrent 150° og fortrinnsvis 10° vist seg å gi betyde- lig støyreduksjon.
NO943757A 1993-11-04 1994-10-06 Vindturbin NO943757L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9301910A NL9301910A (nl) 1993-11-04 1993-11-04 Windturbine.

Publications (2)

Publication Number Publication Date
NO943757D0 NO943757D0 (no) 1994-10-06
NO943757L true NO943757L (no) 1995-05-05

Family

ID=19863095

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943757A NO943757L (no) 1993-11-04 1994-10-06 Vindturbin

Country Status (6)

Country Link
US (1) US5533865A (no)
EP (1) EP0652367A1 (no)
CN (1) CN1110368A (no)
FI (1) FI944650L (no)
NL (1) NL9301910A (no)
NO (1) NO943757L (no)

Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614420C2 (de) * 1996-04-12 2003-05-22 Aloys Wobben Rotorblatt und Windenergieanlage mit einem Rotorblatt
DE19738278A1 (de) * 1997-09-02 1999-03-04 Felix Hafner Adaptiver Rotor für Windkraftanlagen
FR2783885B1 (fr) * 1998-09-25 2001-07-27 Geco As Structure portante a tourbillon marginal reduit
EE200100306A (et) 1998-12-09 2002-08-15 Wobben Aloys Tuuleenergiaseadme rootorilaba
US6471157B1 (en) * 1999-03-22 2002-10-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Device and method for reducing aircraft noise
BR0003706A (pt) * 2000-05-30 2002-02-13 Tecsis Tecnologia E Sist S Ava Pá para ventilador axial de baixo ruìdo e alta eficiência
ITMI20010060A1 (it) * 2001-01-15 2002-07-15 S M C Searunner Motorboat Comp Dispositivo per diminuire la resistenza d'avanzamento sull'acqua di un motoscafo
US6733240B2 (en) * 2001-07-18 2004-05-11 General Electric Company Serrated fan blade
RU2218476C2 (ru) * 2001-10-01 2003-12-10 Бреусов Владимир Петрович Ветроэнергетическая установка
US7059833B2 (en) * 2001-11-26 2006-06-13 Bonus Energy A/S Method for improvement of the efficiency of a wind turbine rotor
EP1338793A3 (en) * 2002-02-22 2010-09-01 Mitsubishi Heavy Industries, Ltd. Serrated wind turbine blade trailing edge
US6939108B2 (en) * 2003-01-06 2005-09-06 Mechanization Systems Company, Inc. Cooling fan with reinforced blade
DE10317509A1 (de) * 2003-04-16 2004-11-18 Daimlerchrysler Ag Fahrtwindbeaufschlagte Kante eines Kraftfahrzeug-Bauteiles
DE10340978B4 (de) * 2003-09-05 2008-09-18 Moosdorf, Reinhard W. Kunstfaserelement für Rotorblätter
DE102005019905B4 (de) * 2005-04-29 2012-12-06 Nordex Energy Gmbh Rotorblatt für eine Windenergieanlage
US7637721B2 (en) * 2005-07-29 2009-12-29 General Electric Company Methods and apparatus for producing wind energy with reduced wind turbine noise
ES2318925B1 (es) * 2005-09-22 2010-02-11 GAMESA INNOVATION & TECHNOLOGY, S.L. Aerogenerador con un rotor de palas que reduce el ruido.
US7458777B2 (en) * 2005-09-22 2008-12-02 General Electric Company Wind turbine rotor assembly and blade having acoustic flap
DE102005051931B4 (de) * 2005-10-29 2007-08-09 Nordex Energy Gmbh Rotorblatt für Windkraftanlagen
EP1801422B1 (de) 2005-12-22 2013-06-12 Ziehl-Abegg AG Ventilator und Ventilatorflügel
NL1031223C1 (nl) * 2006-02-23 2007-08-24 Stichting Nationaal Lucht En R Reductie van windturbinegeluid door borstels op de achterrand van de bladen.
JP4973249B2 (ja) * 2006-03-31 2012-07-11 ダイキン工業株式会社 多翼ファン
GB0606890D0 (en) * 2006-04-05 2006-05-17 Imp College Innovations Ltd Fluid flow modification apparatus
US7955055B1 (en) 2006-04-14 2011-06-07 Macroair Technologies, Inc. Safety retaining system for large industrial fan
WO2008108881A2 (en) * 2006-09-08 2008-09-12 Steven Sullivan Method and apparatus for mitigating trailing vortex wakes of lifting or thrust generating bodies
ES2310958B1 (es) * 2006-09-15 2009-11-10 GAMESA INNOVATION & TECHNOLOGY, S.L. Pala de aerogenerador optimizada.
US20080166241A1 (en) * 2007-01-04 2008-07-10 Stefan Herr Wind turbine blade brush
US7918653B2 (en) 2007-02-07 2011-04-05 General Electric Company Rotor blade trailing edge assemby and method of use
US7413408B1 (en) * 2007-02-22 2008-08-19 Samuel B Tafoya Vibration-reducing and noise-reducing spoiler for helicopter rotors, aircraft wings, propellers, and turbine blades
ES2345583B1 (es) 2007-05-31 2011-07-28 GAMESA INNOVATION & TECHNOLOGY, S.L. Pala de aerogenerador con dispositivos anti-ruido.
US20090074585A1 (en) * 2007-09-19 2009-03-19 General Electric Company Wind turbine blades with trailing edge serrations
JP4371171B2 (ja) * 2008-05-09 2009-11-25 ダイキン工業株式会社 クロスフローファン及びこれを備えた空気調和機
EP2309119A1 (en) * 2008-08-06 2011-04-13 Mitsubishi Heavy Industries, Ltd. Windmill blade and wind power generator using same
US8016568B2 (en) * 2008-09-26 2011-09-13 General Electric Company Wind turbine blade
US8579588B1 (en) 2009-04-29 2013-11-12 Macroair Technologies, Inc. Hub assembly for a large cooling fan
US20110006165A1 (en) * 2009-07-10 2011-01-13 Peter Ireland Application of conformal sub boundary layer vortex generators to a foil or aero/ hydrodynamic surface
US8328516B2 (en) * 2009-09-29 2012-12-11 General Electric Company Systems and methods of assembling a rotor blade extension for use in a wind turbine
DE102009060650A1 (de) 2009-12-22 2011-06-30 Keller, Walter, 66994 Aeroakustisches Rotorblatt für eine Windkraftanlage sowie damit ausgestattete Windkraftanlage
US20110215585A1 (en) * 2010-03-03 2011-09-08 Richard Caires Clear wind tower system technology
EP2366892B1 (de) * 2010-03-18 2014-07-30 Nordex Energy GmbH Windenergieanlagenrotorblatt
US8043066B2 (en) * 2010-06-08 2011-10-25 General Electric Company Trailing edge bonding cap for wind turbine rotor blades
US7909576B1 (en) 2010-06-24 2011-03-22 General Electric Company Fastening device for rotor blade component
CA2807883C (en) 2010-08-10 2018-01-16 Siemens Aktiengesellschaft Rotor blade element and method for improving the efficiency of a wind turbine rotor blade
US8083488B2 (en) 2010-08-23 2011-12-27 General Electric Company Blade extension for rotor blade in wind turbine
US20110268557A1 (en) * 2010-09-29 2011-11-03 General Electric Company System and method for attenuating the noise of airfoils
GB201016455D0 (en) * 2010-09-30 2010-11-17 Imp Innovations Ltd Fluid flow modification
US7976276B2 (en) * 2010-11-04 2011-07-12 General Electric Company Noise reducer for rotor blade in wind turbine
US7976283B2 (en) * 2010-11-10 2011-07-12 General Electric Company Noise reducer for rotor blade in wind turbine
US8523515B2 (en) * 2010-11-15 2013-09-03 General Electric Company Noise reducer for rotor blade in wind turbine
US20130272892A1 (en) * 2010-11-30 2013-10-17 General Electric Company Noise reducer for rotor blade in wind turbine
US8267657B2 (en) 2010-12-16 2012-09-18 General Electric Company Noise reducer for rotor blade in wind turbine
DE102011011489A1 (de) 2011-02-17 2012-08-23 Eads Deutschland Gmbh Propellerblatt sowie damit versehenes Triebwerk für ein Luftfahrzeug
US8047784B2 (en) * 2011-03-22 2011-11-01 General Electric Company Lift device for rotor blade in wind turbine
US8460779B2 (en) 2011-03-30 2013-06-11 General Electric Company Microstructures for reducing noise of a fluid dynamic structure
ES2546882T3 (es) 2011-04-04 2015-09-29 Siemens Aktiengesellschaft Método de optimización de una construcción de parque eólico
EP2514962B1 (en) * 2011-04-19 2017-08-02 Siemens Aktiengesellschaft Spoiler for a wind turbine blade
WO2012156359A1 (en) * 2011-05-16 2012-11-22 Lm Wind Power A/S Wind turbine blade with noise reduction devices and related method
US8414261B2 (en) 2011-05-31 2013-04-09 General Electric Company Noise reducer for rotor blade in wind turbine
WO2013026127A1 (en) * 2011-08-22 2013-02-28 Castanon Seoane Diego Cross-wind-axis wind-turbine rotor vane
US8834127B2 (en) 2011-09-09 2014-09-16 General Electric Company Extension for rotor blade in wind turbine
US8834117B2 (en) 2011-09-09 2014-09-16 General Electric Company Integrated lightning receptor system and trailing edge noise reducer for a wind turbine rotor blade
US9341158B2 (en) 2011-12-08 2016-05-17 Inventus Holdings, Llc Quiet wind turbine blade
GB2497739A (en) 2011-12-19 2013-06-26 Rolls Royce Plc Rotor blade with serrated trailing edge
US8430638B2 (en) 2011-12-19 2013-04-30 General Electric Company Noise reducer for rotor blade in wind turbine
US20130164141A1 (en) * 2011-12-22 2013-06-27 General Electric Company Blade with semi-rigid trailing edge
US8840451B2 (en) * 2012-01-24 2014-09-23 Honeywell International Inc. Cabin pressure outflow valve with simplified whistle eliminator
DK177533B1 (en) * 2012-05-25 2013-09-08 Envision Energy Denmark Aps Trailing edge tape
KR101920085B1 (ko) * 2012-09-12 2018-11-19 엘지전자 주식회사
US20150233345A1 (en) * 2012-09-24 2015-08-20 Siemens Aktiengesellschaft Wind turbine blade
US10012207B2 (en) 2012-09-24 2018-07-03 Siemens Aktiengesellschaft Wind turbine blade noise reduction teeth with stiffening rib
WO2014048581A1 (en) 2012-09-25 2014-04-03 Siemens Aktiengesellschaft A wind turbine blade with a noise reducing device
WO2014064195A1 (en) * 2012-10-26 2014-05-01 Lm Wp Patent Holding A/S A system and method for trailing edge noise reduction of a wind turbine blade
CN102966487A (zh) * 2012-11-28 2013-03-13 苏州源源机械设备有限公司 水平轴降噪风力发电机风叶
TWI537464B (zh) * 2012-12-07 2016-06-11 渥班資產公司 風力渦輪機
DE102013202881A1 (de) * 2013-02-21 2014-08-21 Wobben Properties Gmbh Rotorblatthinterkante
JP6088065B2 (ja) 2012-12-07 2017-03-01 ヴォッベン プロパティーズ ゲーエムベーハーWobben Properties Gmbh ロータブレード後方縁部
DE102013204637A1 (de) 2013-03-15 2014-09-18 Wobben Properties Gmbh Windenergieanlage
DE102013206207A1 (de) * 2013-04-09 2014-10-09 MTU Aero Engines AG Schaufelblatt für eine Strömungsmaschine mit Hinterkantenprofilierung, Schaufel und integral beschaufelter Rotor
JP6189088B2 (ja) * 2013-05-28 2017-08-30 テラル株式会社 ロータ
WO2014207015A1 (en) 2013-06-27 2014-12-31 Siemens Aktiengesellschaft Rotor blade with noise reduction means
GR20130100479A (el) * 2013-08-20 2015-03-18 Αριστειδης Εμμανουηλ Δερμιτζακης Ανεμογεννητρια χαμηλων ταχυτητων ανεμου
EP2851554A1 (en) 2013-09-18 2015-03-25 Siemens Aktiengesellschaft Arrangement to reduce noise emission
DK2851555T3 (en) 2013-09-18 2018-05-22 Siemens Ag Wind turbine rotor blade with thanks to extension
US20150098821A1 (en) * 2013-10-08 2015-04-09 Edward A. Mayda Reverse flow load mitigation device for a wind turbine blade
US9638164B2 (en) 2013-10-31 2017-05-02 General Electric Company Chord extenders for a wind turbine rotor blade assembly
US9494134B2 (en) * 2013-11-20 2016-11-15 General Electric Company Noise reducing extension plate for rotor blade in wind turbine
CN106414999A (zh) * 2014-05-06 2017-02-15 西门子公司 用于风力机转子叶片的降噪装置
DE102014213930A1 (de) * 2014-07-17 2016-01-21 Wobben Properties Gmbh Rotorblattspitzenhinterkante
DE102014213929A1 (de) * 2014-07-17 2016-01-21 Wobben Properties Gmbh Rotorblatthinterkante
BR112017002317B1 (pt) 2014-08-05 2022-11-22 Ryan Church Estrutura de redirecionamento de fluido
US10690110B2 (en) * 2014-08-05 2020-06-23 Ryan Church Structure with rigid projections adapted to traverse a fluid environment
US11035340B2 (en) 2014-08-05 2021-06-15 Biomerenewables Inc. Fluidic turbine structure
WO2016019467A1 (en) 2014-08-05 2016-02-11 Ryan Church Structure with rigid winglet adapted to traverse a fluid environment
US9849976B2 (en) * 2014-08-19 2017-12-26 The Boeing Company Noise reducing profile for helicopter rotor blade tracking wedges
US10180125B2 (en) 2015-04-20 2019-01-15 General Electric Company Airflow configuration for a wind turbine rotor blade
GB201512688D0 (en) * 2015-07-20 2015-08-26 Rolls Royce Plc Aerofoil
DE102016101485A1 (de) * 2016-01-28 2017-08-03 Wobben Properties Gmbh Verfahren zum Nachrüsten einer Zacken-Nachrüsteinheit an einer Hinterkante eines Windenergieanlagen-Rotorblattes und Zacken-Nachrüsteinheit für ein Windenergieanlagen-Rotorblatt
DE102015217331A1 (de) * 2015-09-10 2017-03-16 Wobben Properties Gmbh Verfahren zum Nachrüsten einer Zackeneinheit an einer Hinterkante eines Windenergieanlagen-Rotorblattes und Zacken-Nachrüsteinheit für ein Windenergieanlagen-Rotorblatt
CN105484946A (zh) * 2015-11-23 2016-04-13 北京金风科创风电设备有限公司 叶片、叶片锯齿尾缘及其制造方法
EP3181895A1 (en) 2015-12-17 2017-06-21 LM WP Patent Holding A/S Splitter plate arrangement for a serrated wind turbine blade
US10011346B2 (en) 2015-12-18 2018-07-03 Amazon Technologies, Inc. Propeller blade indentations for improved aerodynamic performance and sound control
US10259574B2 (en) 2015-12-18 2019-04-16 Amazon Technologies, Inc. Propeller surface area treatments for sound dampening
US10259562B2 (en) 2015-12-18 2019-04-16 Amazon Technologies, Inc. Propeller blade trailing edge fringes for improved sound control
US10460717B2 (en) 2015-12-18 2019-10-29 Amazon Technologies, Inc. Carbon nanotube transducers on propeller blades for sound control
US10099773B2 (en) 2015-12-18 2018-10-16 Amazon Technologies, Inc. Propeller blade leading edge serrations for improved sound control
US10933988B2 (en) 2015-12-18 2021-03-02 Amazon Technologies, Inc. Propeller blade treatments for sound control
US20170174321A1 (en) * 2015-12-18 2017-06-22 Amazon Technologies, Inc. Propeller treatments for sound dampening
CN105620727B (zh) * 2016-01-30 2018-03-20 中国科学院合肥物质科学研究院 一种低噪声无人机旋翼/螺旋桨
US10539025B2 (en) 2016-02-10 2020-01-21 General Electric Company Airfoil assembly with leading edge element
US11002246B2 (en) * 2016-04-15 2021-05-11 Siemens Gamesa Renewable Energy A/S Rotor blade with a serrated trailing edge
EP3472456B1 (en) * 2016-06-20 2020-12-09 LM Wind Power International Technology II ApS Wind turbine blade with tip end serrations
CN106275423A (zh) * 2016-08-23 2017-01-04 成都翼高九天科技有限公司 一种新型无人机旋翼空气动力学结构
US11002294B2 (en) * 2016-10-07 2021-05-11 General Electric Comany Impact force dispersal assembly for turbine engines and methods of fabricating the same
ES2973128T3 (es) * 2017-01-12 2024-06-18 Lm Wind Power As Una pala de turbina eólica que comprende un dispositivo de reducción de ruido en el borde de salida
US10465652B2 (en) 2017-01-26 2019-11-05 General Electric Company Vortex generators for wind turbine rotor blades having noise-reducing features
JP2018150898A (ja) * 2017-03-14 2018-09-27 Ntn株式会社 垂直軸風車、その翼、および風力発電装置
US20190024631A1 (en) * 2017-07-20 2019-01-24 General Electric Company Airflow configuration for a wind turbine rotor blade
USD901669S1 (en) 2017-09-29 2020-11-10 Carrier Corporation Contoured fan blade
US10767623B2 (en) 2018-04-13 2020-09-08 General Electric Company Serrated noise reducer for a wind turbine rotor blade
EP3587799B1 (en) * 2018-06-27 2025-06-18 Siemens Gamesa Renewable Energy A/S Aerodynamic structure
DK3587798T3 (da) * 2018-06-27 2020-11-23 Siemens Gamesa Renewable Energy As Aerodynamisk konstruktion
US10746157B2 (en) 2018-08-31 2020-08-18 General Electric Company Noise reducer for a wind turbine rotor blade having a cambered serration
US11163302B2 (en) 2018-09-06 2021-11-02 Amazon Technologies, Inc. Aerial vehicle propellers having variable force-torque ratios
EP3696402B2 (en) * 2019-02-18 2025-02-26 LM Wind Power A/S Noise reducer for a wind turbine rotor blade
JP7277316B2 (ja) 2019-08-30 2023-05-18 三菱重工業株式会社 風車翼装置及び風車翼アタッチメント部材
CA3184944A1 (en) 2020-03-10 2021-09-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Fan and fan blades
CN113086169B (zh) * 2021-03-30 2022-07-12 吉林大学 一种减阻降噪的仿生螺旋桨及其制备方法
WO2024010549A1 (en) * 2022-07-05 2024-01-11 Koese Cevdet Gliding and balancing wing
WO2024170631A1 (fr) 2023-02-14 2024-08-22 Zelin Dispositif de reduction du bruit aeroacoustique d'une pale d'un equipement aeraulique et pale d'eolienne equipee d'un tel dispositif de reduction de bruit
FR3145782A1 (fr) 2023-02-14 2024-08-16 Zelin Dispositif de reduction du bruit aeroacoustique d’une pale d’un equipement aeraulique et pale d’eolienne equipee d’un tel dispositif de reduction de bruit
EP4446578A1 (en) * 2023-04-12 2024-10-16 Siemens Gamesa Renewable Energy A/S Trailing-edge add-on
CN116816588A (zh) * 2023-07-25 2023-09-29 三一重能股份有限公司 叶片尾缘结构、风电叶片及风力发电机组

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US175355A (en) * 1876-03-28 Waltee king
US1862827A (en) * 1930-01-22 1932-06-14 Parsons Steam turbine
US2800291A (en) * 1950-10-24 1957-07-23 Stephens Arthur Veryan Solid boundary surface for contact with a relatively moving fluid medium
GB789883A (en) * 1954-08-20 1958-01-29 Power Jets Res & Dev Ltd High speed aerofoil
US3365126A (en) * 1965-09-01 1968-01-23 Gen Electric Compressor blade
JPS5115210A (en) * 1974-07-02 1976-02-06 Rotoron Inc Zatsuongenshono fuan
DE2527467B2 (de) * 1975-06-20 1978-10-19 Deutsche Forschungs- Und Versuchsanstalt Fuer Luft- Und Raumfahrt E.V., 5000 Koeln Überströmter Körper, insbesondere Tragflügel
DE3137554A1 (de) * 1981-09-22 1983-03-31 Wilhelm Gebhardt Gmbh, 7112 Waldenburg "radialventilator"
US4830315A (en) * 1986-04-30 1989-05-16 United Technologies Corporation Airfoil-shaped body
US4813633A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Airfoil trailing edge
JPH0264300A (ja) * 1988-08-31 1990-03-05 Hitachi Ltd フアン用ブレード
GB8829792D0 (en) * 1988-12-21 1989-07-05 Marconi Co Ltd Noise reduction method
US5217349A (en) * 1989-08-31 1993-06-08 Technology Integration Incorporated System and method for suppressing noise produced by rotors
US5088665A (en) * 1989-10-31 1992-02-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Serrated trailing edges for improving lift and drag characteristics of lifting surfaces

Also Published As

Publication number Publication date
NO943757D0 (no) 1994-10-06
FI944650A0 (fi) 1994-10-05
FI944650A7 (fi) 1995-05-05
FI944650L (fi) 1995-05-05
US5533865A (en) 1996-07-09
CN1110368A (zh) 1995-10-18
EP0652367A1 (en) 1995-05-10
NL9301910A (nl) 1995-06-01

Similar Documents

Publication Publication Date Title
NO943757L (no) Vindturbin
DE3464550D1 (en) Saw blade
JPS5377321A (en) Axial-flow fan with supplementary blade
TW313943U (en) Compound miter saw
CA2138005A1 (en) Method and apparatus for transverse cutting
JPS5525555A (en) Impeller
CA2124449A1 (en) Mulching Mower with Obround Cutting Chamber
CA2094568A1 (en) Serrated Shears
GB1151937A (en) Bladed Rotors for Fluid Flow Machines
ATE114535T1 (de) Ästungsvorrichtung.
BR8402487A (pt) Unidade britadora movel
JPS5512227A (en) Centrifugal fan apparatus
SE8203647L (sv) Sag
CN107972150A (zh) 用于办公桌的智能生产线
JPS5741120A (en) Multiblade saw
FR2420607A1 (fr) Machine a creuser et a curer les fosses
EP0231110A3 (en) Saw blades
SU730329A1 (ru) Устройство дл поперечного резани древесины
ES251512U (es) Lama continua roratoria para sierra de cinta, dotada de blo-quecitos adiamantados
TERICH et al. The effects of wood debris and drift logs on estuarine beaches of northern Puget Sound[Completion Report]
NL7806886A (en) Rubbish removal machine from under trees - has bladed rotors supported from ground on rotary shoes
JPS52154467A (en) Inner blade of rotary electric razor
STELMAKH et al. The effect of the geometric parameters of a compressor cascade on the threshold of the self-excited flexural vibration of the blades due to cascade flutter
FR2437917A1 (fr) Machine a fendre les barres de bois
JPS5346502A (en) Preventing system from overspeed of steam turbine