WO2012112613A3 - Turbine blades, systems and methods - Google Patents
Turbine blades, systems and methods Download PDFInfo
- Publication number
- WO2012112613A3 WO2012112613A3 PCT/US2012/025127 US2012025127W WO2012112613A3 WO 2012112613 A3 WO2012112613 A3 WO 2012112613A3 US 2012025127 W US2012025127 W US 2012025127W WO 2012112613 A3 WO2012112613 A3 WO 2012112613A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure side
- suction side
- blade
- suction
- systems
- Prior art date
Links
- 238000007664 blowing Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
-
- 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
- F03D15/00—Transmission of mechanical power
- F03D15/05—Transmission of mechanical power using hollow exhausting blades
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- 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
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/79—Bearing, support or actuation arrangements therefor
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/605—Control system actuates through pneumatic actuators
-
- 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
Abstract
A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge, the pressure side having a pressure side surface and the suction side having a suction side surface, the pressure side surface and suction side surface for providing lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side surfaces, the pressure side and suction side extending from a root portion to a tip portion of the turbine blade. In some situations, the root portion is non- aerodynamic. The aerodynamics of such a blade is improved with the aid of pneumatic blowing through one or more blown passages for providing pressurized air (or other fluid) to a suction side and/or pressure side of the blade.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161442761P | 2011-02-14 | 2011-02-14 | |
US61/442,761 | 2011-02-14 | ||
US201161453941P | 2011-03-17 | 2011-03-17 | |
US61/453,941 | 2011-03-17 | ||
US13/185,459 US20120020803A1 (en) | 2011-02-14 | 2011-07-18 | Turbine blades, systems and methods |
US13/185,459 | 2011-07-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012112613A2 WO2012112613A2 (en) | 2012-08-23 |
WO2012112613A3 true WO2012112613A3 (en) | 2012-11-22 |
Family
ID=45493773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2012/025127 WO2012112613A2 (en) | 2011-02-14 | 2012-02-14 | Turbine blades, systems and methods |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120020803A1 (en) |
WO (1) | WO2012112613A2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010087178A1 (en) * | 2009-01-30 | 2010-08-05 | 国立大学法人九州工業大学 | Wind turbine generator |
US20120024622A1 (en) * | 2010-08-02 | 2012-02-02 | Yen Tuan | Gaseous-fluid supply system for noise abatement application |
GB201109412D0 (en) * | 2011-06-03 | 2011-07-20 | Blade Dynamics Ltd | A wind turbine rotor |
US9133819B2 (en) | 2011-07-18 | 2015-09-15 | Kohana Technologies Inc. | Turbine blades and systems with forward blowing slots |
CO6860304A1 (en) * | 2012-07-13 | 2014-02-10 | Univ Pontificia Bolivariana | Geometric description rotor blade |
EP3115598A4 (en) * | 2014-03-04 | 2017-03-29 | The Chugoku Electric Power Co., Inc. | Wind power generation device |
US9845684B2 (en) * | 2014-11-25 | 2017-12-19 | Pratt & Whitney Canada Corp. | Airfoil with stepped spanwise thickness distribution |
US11065840B2 (en) * | 2015-02-25 | 2021-07-20 | Biomerenewables Inc. | Structures and methods of manufacturing structures using biological based materials |
EP3545189B1 (en) * | 2016-11-24 | 2021-03-24 | Vestas Wind Systems A/S | Improvements relating to wind turbines having blades equipped with boundary layer control system |
DE102017124861A1 (en) * | 2017-10-24 | 2019-04-25 | Wobben Properties Gmbh | Rotor blade of a wind turbine and method for its design |
US20200088161A1 (en) * | 2018-09-17 | 2020-03-19 | General Electric Company | Wind Turbine Rotor Blade Assembly for Reduced Noise |
US11781522B2 (en) | 2018-09-17 | 2023-10-10 | General Electric Company | Wind turbine rotor blade assembly for reduced noise |
CN109653942B (en) * | 2019-01-28 | 2020-06-12 | 河海大学 | Ventilation vortex reduction device and wind turbine blade with same inside |
CN110566400B (en) * | 2019-09-10 | 2021-05-14 | 河南理工大学 | Horizontal shaft wind turbine blade |
CN111734577B (en) * | 2020-07-07 | 2023-05-02 | 中国华能集团有限公司广西分公司 | Slit type wind turbine blade device and slit method |
EP4305295A1 (en) * | 2021-03-10 | 2024-01-17 | Vestas Wind Systems A/S | A wind turbine blade |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6940185B2 (en) * | 2003-04-10 | 2005-09-06 | Advantek Llc | Advanced aerodynamic control system for a high output wind turbine |
US20090028705A1 (en) * | 2007-06-22 | 2009-01-29 | Gamesa Innovation & Technology, S.L. | Wind turbine blade with deflectable flaps |
US20100014970A1 (en) * | 2007-01-05 | 2010-01-21 | Lm Glasfiber A/S | Wind turbine blade with lift-regulating means in form of slots or holes |
US20100266382A1 (en) * | 2007-10-22 | 2010-10-21 | Actiflow B.V. | Wind turbine with boundary layer control |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2464726A (en) * | 1944-09-18 | 1949-03-15 | Edward A Stalker | Rotary wing aircraft |
US4316698A (en) * | 1979-08-23 | 1982-02-23 | Bertoia Val O | Fluid-driven turbine with speed regulation |
US4474536A (en) * | 1980-04-09 | 1984-10-02 | Gougeon Brothers, Inc. | Wind turbine blade joint assembly and method of making wind turbine blades |
US4557666A (en) * | 1983-09-29 | 1985-12-10 | The Boeing Company | Wind turbine rotor |
US6132181A (en) * | 1995-07-31 | 2000-10-17 | Mccabe; Francis J. | Windmill structures and systems |
US5791601A (en) * | 1995-08-22 | 1998-08-11 | Dancila; D. Stefan | Apparatus and method for aerodynamic blowing control using smart materials |
US6142425A (en) * | 1995-08-22 | 2000-11-07 | Georgia Institute Of Technology | Apparatus and method for aerodynamic blowing control using smart materials |
US6203269B1 (en) * | 1999-02-25 | 2001-03-20 | United Technologies Corporation | Centrifugal air flow control |
US7387491B2 (en) * | 2004-12-23 | 2008-06-17 | General Electric Company | Active flow modifications on wind turbine blades |
US20070231151A1 (en) * | 2005-10-10 | 2007-10-04 | General Electric Company | Active flow control for wind turbine blades |
US20090285691A1 (en) * | 2005-12-05 | 2009-11-19 | Peter Grabau | Blade for a Wind Turbine Rotor |
CN101641518A (en) * | 2006-12-13 | 2010-02-03 | 澳大利亚产气有限公司 | Wind turbine and wind turbine blade |
NL2000819C2 (en) * | 2007-08-17 | 2009-02-18 | Stichting Energie | Wind turbine and rotor blade. |
US8186960B2 (en) * | 2008-04-15 | 2012-05-29 | Frontier Pro Services, Llc | Repair of rotor blade roots |
US9239039B2 (en) * | 2008-10-27 | 2016-01-19 | General Electric Company | Active circulation control of aerodynamic structures |
US8075278B2 (en) * | 2009-05-21 | 2011-12-13 | Zuteck Michael D | Shell structure of wind turbine blade having regions of low shear modulus |
-
2011
- 2011-07-18 US US13/185,459 patent/US20120020803A1/en not_active Abandoned
-
2012
- 2012-02-14 WO PCT/US2012/025127 patent/WO2012112613A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6940185B2 (en) * | 2003-04-10 | 2005-09-06 | Advantek Llc | Advanced aerodynamic control system for a high output wind turbine |
US20100014970A1 (en) * | 2007-01-05 | 2010-01-21 | Lm Glasfiber A/S | Wind turbine blade with lift-regulating means in form of slots or holes |
US20090028705A1 (en) * | 2007-06-22 | 2009-01-29 | Gamesa Innovation & Technology, S.L. | Wind turbine blade with deflectable flaps |
US20100266382A1 (en) * | 2007-10-22 | 2010-10-21 | Actiflow B.V. | Wind turbine with boundary layer control |
Also Published As
Publication number | Publication date |
---|---|
US20120020803A1 (en) | 2012-01-26 |
WO2012112613A2 (en) | 2012-08-23 |
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