ZA862963B - Wind turbine - Google Patents
Wind turbineInfo
- Publication number
- ZA862963B ZA862963B ZA862963A ZA862963A ZA862963B ZA 862963 B ZA862963 B ZA 862963B ZA 862963 A ZA862963 A ZA 862963A ZA 862963 A ZA862963 A ZA 862963A ZA 862963 B ZA862963 B ZA 862963B
- Authority
- ZA
- South Africa
- Prior art keywords
- wind turbine
- turbine
- wind
- 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
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
- F03D7/0252—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking with aerodynamic drag devices on the blades
-
- 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
- F05B2260/90—Braking
- F05B2260/901—Braking using aerodynamic forces, i.e. lift or drag
- F05B2260/9011—Braking using aerodynamic forces, i.e. lift or drag of the tips of rotor blades
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Magnetic Ceramics (AREA)
- Glass Compositions (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85302983A EP0200823B1 (de) | 1985-04-26 | 1985-04-26 | Windturbine |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA862963B true ZA862963B (en) | 1986-12-30 |
Family
ID=8194210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA862963A ZA862963B (en) | 1985-04-26 | 1986-04-21 | Wind turbine |
Country Status (6)
Country | Link |
---|---|
US (1) | US4710101A (de) |
EP (1) | EP0200823B1 (de) |
AU (1) | AU5615386A (de) |
DE (1) | DE3567065D1 (de) |
DK (1) | DK188686A (de) |
ZA (1) | ZA862963B (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2227286A (en) * | 1989-01-17 | 1990-07-25 | Howden Wind Turbines Limited | Control of a wind turbine and adjustable blade therefor |
US5310314A (en) * | 1993-03-26 | 1994-05-10 | Gyrodyne Company Of America, Inc. | Directional control system for rotary wing aircraft |
GB2308867A (en) * | 1995-12-05 | 1997-07-09 | John Arthur Howard | Automatic wind turbine control |
US6726439B2 (en) | 2001-08-22 | 2004-04-27 | Clipper Windpower Technology, Inc. | Retractable rotor blades for power generating wind and ocean current turbines and means for operating below set rotor torque limits |
US7071578B1 (en) * | 2002-01-10 | 2006-07-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine provided with a controller for adjusting active annular plane area and the operating method thereof |
US7131812B2 (en) * | 2002-01-18 | 2006-11-07 | Manfred Karl Brueckner | Sky turbine that is mounted on a city |
US20050008488A1 (en) * | 2002-01-18 | 2005-01-13 | Brueckner Manfred Karl | Sky turbine that may be mounted on top of a city |
US6923622B1 (en) | 2002-03-07 | 2005-08-02 | Clipper Windpower Technology, Inc. | Mechanism for extendable rotor blades for power generating wind and ocean current turbines and means for counter-balancing the extendable rotor blade |
US6972498B2 (en) * | 2002-05-28 | 2005-12-06 | General Electric Company | Variable diameter wind turbine rotor blades |
KR100557716B1 (ko) * | 2002-05-31 | 2006-03-06 | 주장식 | 다중 회전날개가 구비된 풍력발전기 |
KR100467061B1 (ko) * | 2002-05-31 | 2005-01-24 | 주장식 | 풍력발전기 |
US6902370B2 (en) * | 2002-06-04 | 2005-06-07 | Energy Unlimited, Inc. | Telescoping wind turbine blade |
US7581926B1 (en) * | 2004-03-22 | 2009-09-01 | Clipper Windpower Technology, Inc. | Servo-controlled extender mechanism for extendable rotor blades for power generating wind and ocean current turbines |
US7317260B2 (en) * | 2004-05-11 | 2008-01-08 | Clipper Windpower Technology, Inc. | Wind flow estimation and tracking using tower dynamics |
US7582977B1 (en) | 2005-02-25 | 2009-09-01 | Clipper Windpower Technology, Inc. | Extendable rotor blades for power generating wind and ocean current turbines within a module mounted atop a main blade |
WO2006138256A2 (en) * | 2005-06-13 | 2006-12-28 | Stealthdrive Llc | In-plane airflow circulation contingency and control system |
US8608441B2 (en) * | 2006-06-12 | 2013-12-17 | Energyield Llc | Rotatable blade apparatus with individually adjustable blades |
MX2009000552A (es) | 2006-07-21 | 2009-01-28 | Clipper Windpower Technology | Estructura retractil para palas de rotor. |
DK2122164T3 (en) * | 2007-01-05 | 2016-07-04 | Lm Wp Patent Holding As | Wind turbine blade with lift regulators in the form of grooves or holes |
US7828523B2 (en) * | 2007-03-27 | 2010-11-09 | General Electric Company | Rotor blade for a wind turbine having a variable dimension |
US20090053060A1 (en) * | 2007-06-06 | 2009-02-26 | Garver Theodore M | Wind turbine blade control system |
US20090148290A1 (en) * | 2007-06-06 | 2009-06-11 | Garver Theodore M | Wind turbine and method of operating same |
US8011886B2 (en) * | 2009-06-30 | 2011-09-06 | General Electric Company | Method and apparatus for increasing lift on wind turbine blade |
KR20130024612A (ko) * | 2011-08-31 | 2013-03-08 | 대우조선해양 주식회사 | 풍력 발전기용 가변형 블레이드 |
US9394046B2 (en) | 2011-11-16 | 2016-07-19 | Ecological Energy Company | Fluid interface device as well as apparati and methods including same |
DE102014211741A1 (de) | 2014-06-18 | 2015-12-24 | Wobben Properties Gmbh | Rotorblatt einer Windenergieanlage, eine Windenergieanlage sowie ein Verfahren zum Betreiben einer Windenergieanlage |
US10723440B2 (en) | 2016-03-23 | 2020-07-28 | Amazon Technologies, Inc. | Aerial vehicle with different propeller blade configurations |
US10583914B2 (en) * | 2016-03-23 | 2020-03-10 | Amazon Technologies, Inc. | Telescoping propeller blades for aerial vehicles |
US10399666B2 (en) | 2016-03-23 | 2019-09-03 | Amazon Technologies, Inc. | Aerial vehicle propulsion mechanism with coaxially aligned and independently rotatable propellers |
US11305874B2 (en) | 2016-03-23 | 2022-04-19 | Amazon Technologies, Inc. | Aerial vehicle adaptable propeller blades |
US10526070B2 (en) | 2016-03-23 | 2020-01-07 | Amazon Technologies, Inc. | Aerial vehicle propulsion mechanism with coaxially aligned propellers |
US20190093628A1 (en) * | 2017-09-26 | 2019-03-28 | Yan-Ting Lin | Vertical axis wind turbine with a telescopic rotational diameter |
US10683076B2 (en) | 2017-10-31 | 2020-06-16 | Coflow Jet, LLC | Fluid systems that include a co-flow jet |
IN201811004227A (de) * | 2018-02-05 | 2020-01-17 | ||
BR112021017642A2 (pt) * | 2019-03-08 | 2021-11-09 | Big Moon Power Inc | Sistemas e métodos para geração de energia elétrica à base de hidro |
GB2600584B (en) | 2019-07-23 | 2024-03-06 | Coflow Jet Llc | Fluid systems and methods that address flow separation |
CN110552844B (zh) * | 2019-08-29 | 2021-11-23 | 靳军 | 发电装置 |
GB2591448B (en) * | 2020-01-08 | 2023-05-03 | Introfoc Ltd | System and method for improving efficiency of vertical axis wind turbines for all wind directions |
EP4074959A1 (de) * | 2021-04-12 | 2022-10-19 | LM Wind Power A/S | Ausziehbare windturbinenschaufel |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB222845A (en) * | 1923-10-04 | 1925-05-07 | Inst Voor Aero En Hydrodynamie | Improvements in or relating to bodies acting by fluid reaction for propelling, supporting and other purposes |
GB252461A (en) * | 1925-02-27 | 1926-05-27 | Kurt Bilau | Improvements in or relating to wind-driven prime movers |
NL22407C (de) * | 1927-05-21 | |||
US2135887A (en) * | 1935-06-07 | 1938-11-08 | Fairey Charles Richard | Blade for airscrews and the like |
US2076520A (en) * | 1936-01-21 | 1937-04-06 | L H Cutler | Automatic air motor governor |
US2058500A (en) * | 1936-04-06 | 1936-10-27 | Frederic C Plucker | Wind propelled electric generator |
US2074149A (en) * | 1936-05-27 | 1937-03-16 | Joseph H Jacobs | Propeller tip centrifugal pitch control |
US2148921A (en) * | 1938-04-12 | 1939-02-28 | Walter J Allen | Governor mechanism |
US2437659A (en) * | 1943-07-19 | 1948-03-09 | Wincharger Corp | Balanced impeller structure for wind motors |
US2485543A (en) * | 1943-10-19 | 1949-10-25 | Andreau Jean Edouard | Power plant |
FR55893E (fr) * | 1944-02-14 | 1952-09-08 | Perfectionnements apportés aux moulinets producteurs de force motrice, notamment aux éoliennes | |
FR1006698A (fr) * | 1948-02-11 | 1952-04-25 | Scient Et Tech Bureau Et | Procédé de limitation du couple moteur des roues éoliennes et roue éolienne en comportant application |
FR1516196A (fr) * | 1967-01-26 | 1968-03-08 | Perfectionnements aux hélices aériennes industrielles | |
US4180372A (en) * | 1977-03-02 | 1979-12-25 | Grumman Corporation | Wind rotor automatic air brake |
US4374631A (en) * | 1981-05-21 | 1983-02-22 | Fayette Manufacturing Corporation | Windmill speed limiting system utilizing hysteresis |
US4504192A (en) * | 1983-09-15 | 1985-03-12 | The United States Of America As Represented By The United States Department Of Energy | Jet spoiler arrangement for wind turbine |
US4557666A (en) * | 1983-09-29 | 1985-12-10 | The Boeing Company | Wind turbine rotor |
GB2156006B (en) * | 1984-03-21 | 1987-11-04 | Howden James & Co Ltd | Wind turbine operated electrical generator system |
US4692095A (en) * | 1984-04-26 | 1987-09-08 | Sir Henry Lawson-Tancred, Sons & Co. Ltd. | Wind turbine blades |
-
1985
- 1985-04-26 EP EP85302983A patent/EP0200823B1/de not_active Expired
- 1985-04-26 DE DE8585302983T patent/DE3567065D1/de not_active Expired
-
1986
- 1986-04-16 AU AU56153/86A patent/AU5615386A/en not_active Abandoned
- 1986-04-21 ZA ZA862963A patent/ZA862963B/xx unknown
- 1986-04-24 DK DK188686A patent/DK188686A/da not_active Application Discontinuation
- 1986-04-25 US US06/856,049 patent/US4710101A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4710101A (en) | 1987-12-01 |
DK188686A (da) | 1986-10-27 |
DE3567065D1 (en) | 1989-02-02 |
EP0200823B1 (de) | 1988-12-28 |
DK188686D0 (da) | 1986-04-24 |
EP0200823A1 (de) | 1986-11-12 |
AU5615386A (en) | 1986-10-30 |
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