WO2005068833A3 - Wind turbine with variable pitch blades - Google Patents
Wind turbine with variable pitch blades Download PDFInfo
- Publication number
- WO2005068833A3 WO2005068833A3 PCT/BR2005/000003 BR2005000003W WO2005068833A3 WO 2005068833 A3 WO2005068833 A3 WO 2005068833A3 BR 2005000003 W BR2005000003 W BR 2005000003W WO 2005068833 A3 WO2005068833 A3 WO 2005068833A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- blades
- propeller
- wind
- blade position
- Prior art date
Links
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
- F03D7/0224—Adjusting blade pitch
-
- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- 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
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/23—Geometry three-dimensional prismatic
- F05B2250/232—Geometry three-dimensional prismatic conical
-
- 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
- F05B2250/00—Geometry
- F05B2250/30—Arrangement of components
- F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
- F05B2250/314—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being inclined in relation to each other
-
- 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
- F05B2260/77—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by centrifugal forces
-
- 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
- F05B2260/78—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by aerodynamic forces
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0400041-2A BRPI0400041B1 (en) | 2004-01-14 | 2004-01-14 | variable pitch system for wind turbine blades. |
BRPI0400041-2 | 2004-01-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2005068833A2 WO2005068833A2 (en) | 2005-07-28 |
WO2005068833A3 true WO2005068833A3 (en) | 2005-08-25 |
WO2005068833B1 WO2005068833B1 (en) | 2005-10-27 |
Family
ID=34754166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2005/000003 WO2005068833A2 (en) | 2004-01-14 | 2005-01-12 | Wind turbine with variable pitch blades |
Country Status (2)
Country | Link |
---|---|
BR (1) | BRPI0400041B1 (en) |
WO (1) | WO2005068833A2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2876423B1 (en) * | 2004-10-08 | 2009-01-09 | Bourriaud Michel Edouard Raymond | WINDMILL SAILS |
DK176552B1 (en) * | 2005-12-29 | 2008-08-04 | Lm Glasfiber As | Variable speed nav |
GB2436599A (en) * | 2006-03-30 | 2007-10-03 | Boost Energy Systems Ltd | Wind turbine blade furling system |
US7365448B2 (en) | 2006-08-17 | 2008-04-29 | X Blade Systems Lp | Wind driven power generator |
US7911076B2 (en) | 2006-08-17 | 2011-03-22 | Broadstar Developments, Lp | Wind driven power generator with moveable cam |
CN101600879B (en) * | 2006-11-27 | 2012-07-18 | Lm玻璃纤维有限公司 | Pitch of blades on a wind power plant |
FR2926335A1 (en) * | 2008-01-16 | 2009-07-17 | Pascal Gauthiez | Wind energy capturing device for e.g. recharging battery in cycle, has rotor with horizontal axle and blades comprising selected and oriented bird feathers associated to brushless generator, where generator has brushless motor |
FR2926609B1 (en) * | 2008-01-18 | 2010-05-07 | Pascal Gauthiez | NEW TYPE OF ROTOR WITH AUTOMATICALLY ROLLABLE SAILS FOR HORIZONTAL AXIS AEROGENERATOR OF MEDIUM POWER |
IT1394477B1 (en) * | 2009-05-26 | 2012-07-05 | Tozzi Nord S R L | SAFETY SYSTEM FOR WIND TURBINES AND WIND TURBINE EQUIPPED WITH THIS SYSTEM |
DE102013008218A1 (en) * | 2013-05-14 | 2014-11-20 | Erhard Frase | Automatic mechanical rotor blade angle adjustment with overspeed protection for small wind turbines. |
JP2016044632A (en) * | 2014-08-26 | 2016-04-04 | 十郎 佐原 | Rotational speed control device of wind power generator |
CN110030156A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | Automatic pitch-controlled system with counter weight device |
CN110374801B (en) * | 2019-07-02 | 2024-04-05 | 中国大唐集团新能源科学技术研究院有限公司 | Blade root independent variable pitch device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2516576A (en) * | 1947-01-04 | 1950-07-25 | Charles R Jacobs | Self-governing wind-driven propeller |
DE906440C (en) * | 1948-10-02 | 1954-03-15 | Richard Bauer | Fast running wind engine |
US4310284A (en) * | 1979-08-27 | 1982-01-12 | Randolph Arthur J | Automatically controlled wind propeller and tower shadow eliminator |
US4439108A (en) * | 1982-06-08 | 1984-03-27 | Richard Will | Windmill having centrifically feathered rotors to control rotor speed |
US5226805A (en) * | 1990-02-16 | 1993-07-13 | Proven Engineering Products Limited | Windmill having blades which alter their pitch angles automatically in response to both wind speed and load |
US5584655A (en) * | 1994-12-21 | 1996-12-17 | The Wind Turbine Company | Rotor device and control for wind turbine |
-
2004
- 2004-01-14 BR BRPI0400041-2A patent/BRPI0400041B1/en not_active IP Right Cessation
-
2005
- 2005-01-12 WO PCT/BR2005/000003 patent/WO2005068833A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2516576A (en) * | 1947-01-04 | 1950-07-25 | Charles R Jacobs | Self-governing wind-driven propeller |
DE906440C (en) * | 1948-10-02 | 1954-03-15 | Richard Bauer | Fast running wind engine |
US4310284A (en) * | 1979-08-27 | 1982-01-12 | Randolph Arthur J | Automatically controlled wind propeller and tower shadow eliminator |
US4439108A (en) * | 1982-06-08 | 1984-03-27 | Richard Will | Windmill having centrifically feathered rotors to control rotor speed |
US5226805A (en) * | 1990-02-16 | 1993-07-13 | Proven Engineering Products Limited | Windmill having blades which alter their pitch angles automatically in response to both wind speed and load |
US5584655A (en) * | 1994-12-21 | 1996-12-17 | The Wind Turbine Company | Rotor device and control for wind turbine |
Also Published As
Publication number | Publication date |
---|---|
BRPI0400041A (en) | 2005-09-13 |
WO2005068833B1 (en) | 2005-10-27 |
BRPI0400041B1 (en) | 2010-05-18 |
WO2005068833A2 (en) | 2005-07-28 |
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