WO2010053450A3 - Tandem tip-joined blades for wind turbines - Google Patents

Tandem tip-joined blades for wind turbines Download PDF

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Publication number
WO2010053450A3
WO2010053450A3 PCT/SG2009/000405 SG2009000405W WO2010053450A3 WO 2010053450 A3 WO2010053450 A3 WO 2010053450A3 SG 2009000405 W SG2009000405 W SG 2009000405W WO 2010053450 A3 WO2010053450 A3 WO 2010053450A3
Authority
WO
WIPO (PCT)
Prior art keywords
blade portion
tip
wind turbines
blade
blades
Prior art date
Application number
PCT/SG2009/000405
Other languages
French (fr)
Other versions
WO2010053450A2 (en
Inventor
Kang Lim Chee
Erwin Merijn Wouterson
Haraguchi Yoshiki
Zoe Moore
Original Assignee
Vestas Technology R&D Singapore Pte Ltd
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 Vestas Technology R&D Singapore Pte Ltd filed Critical Vestas Technology R&D Singapore Pte Ltd
Publication of WO2010053450A2 publication Critical patent/WO2010053450A2/en
Publication of WO2010053450A3 publication Critical patent/WO2010053450A3/en

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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F05B2260/50—Kinematic linkage, i.e. transmission of position
    • F05B2260/503—Kinematic linkage, i.e. transmission of position using gears
    • 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
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • 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
    • 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

Embodiments of the present invention provide a wind turbine blade system comprising a first blade portion coupled to a wind turbine hub; a second blade portion coupled to the wind turbine hub; and a connector that connects a tip of the first blade portion to a tip of the second blade portion. In some embodiments, each of the first blade portion and the second blade portion may be connected to the connector such that a pitch of each blade portion can be independently adjusted. The system may also include various means coupled to the hub and to the first and second blade portions to adjust a pitch of each of the first and second blades.
PCT/SG2009/000405 2008-11-05 2009-11-04 Tandem tip-joined blades for wind turbines WO2010053450A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11141908P 2008-11-05 2008-11-05
US61/111,419 2008-11-05

Publications (2)

Publication Number Publication Date
WO2010053450A2 WO2010053450A2 (en) 2010-05-14
WO2010053450A3 true WO2010053450A3 (en) 2011-05-05

Family

ID=42153439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2009/000405 WO2010053450A2 (en) 2008-11-05 2009-11-04 Tandem tip-joined blades for wind turbines

Country Status (1)

Country Link
WO (1) WO2010053450A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012005356U1 (en) 2012-05-30 2012-07-10 Petra Staude Rotor blade for wind turbines with profiles in tandem arrangement
US9822760B2 (en) 2012-10-12 2017-11-21 Joint Blade Rotor A/S Joined blade wind turbine rotor
FR3012180B1 (en) * 2013-10-18 2018-02-16 Sebastien Manceau HORIZONTAL ROTATING AXLE WIND MACHINE COMPRISING FAMILIES OF BLADES
US10094358B2 (en) * 2015-07-21 2018-10-09 Winnova Energy LLC Wind turbine blade with double airfoil profile
DE102015011260A1 (en) * 2015-08-26 2017-03-02 Horst Löwe Wind turbine with more than one wing per wing flange of the rotor
US10086933B2 (en) * 2015-12-17 2018-10-02 Amazon Technologies, Inc. Redundant aircraft propulsion system using multiple motors per drive shaft
US10232933B2 (en) * 2015-12-17 2019-03-19 Amazon Technologies, Inc. Redundant aircraft propulsion system using co-rotating propellers joined by tip connectors
US10208733B2 (en) * 2016-07-19 2019-02-19 Michael L Barrows Tandem tip-joined rotor blade and hub coupling for passive pitch angle control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064742A2 (en) * 1981-05-07 1982-11-17 Ficht GmbH Rotor for a wind power station
FR2609506A1 (en) * 1987-01-08 1988-07-15 Lepoix Louis Multi-use fan
EP1365106A1 (en) * 2001-01-26 2003-11-26 Y & Y Co., Ltd. Fluid machinery
WO2009146541A1 (en) * 2008-06-04 2009-12-10 St-Germain Andre Horizontal axis wind turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064742A2 (en) * 1981-05-07 1982-11-17 Ficht GmbH Rotor for a wind power station
FR2609506A1 (en) * 1987-01-08 1988-07-15 Lepoix Louis Multi-use fan
EP1365106A1 (en) * 2001-01-26 2003-11-26 Y & Y Co., Ltd. Fluid machinery
WO2009146541A1 (en) * 2008-06-04 2009-12-10 St-Germain Andre Horizontal axis wind turbine

Also Published As

Publication number Publication date
WO2010053450A2 (en) 2010-05-14

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