DK201170096A - A wind turbine blade - Google Patents

A wind turbine blade

Info

Publication number
DK201170096A
DK201170096A DKPA201170096A DKPA201170096A DK201170096A DK 201170096 A DK201170096 A DK 201170096A DK PA201170096 A DKPA201170096 A DK PA201170096A DK PA201170096 A DKPA201170096 A DK PA201170096A DK 201170096 A DK201170096 A DK 201170096A
Authority
DK
Denmark
Prior art keywords
wind turbine
turbine blade
joint
filler material
pitch
Prior art date
Application number
DKPA201170096A
Other languages
Danish (da)
Inventor
Grabau Peter
Original Assignee
Envision Energy Denmark Aps
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 Envision Energy Denmark Aps filed Critical Envision Energy Denmark Aps
Priority to DKPA201170096A priority Critical patent/DK177305B1/en
Priority to PCT/DK2012/050033 priority patent/WO2012113399A2/en
Publication of DK201170096A publication Critical patent/DK201170096A/en
Application granted granted Critical
Publication of DK177305B1 publication Critical patent/DK177305B1/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
    • 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
    • F03D7/0228—Adjusting blade pitch of the blade tips only
    • 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
    • F03D1/0675—Rotors characterised by their construction elements of 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
    • 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
    • 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 partial pitch wind turbine blade is described wherein an aerodynarnic filler material is provided at the pitch system joint. The filler material acts to reduce tip losses at the joint, irnproving the efficiency of the wind turbine blade. The filler material may be a an infiatable or resilient material e.g. rubber, foam, or may be a shell applied at the joint.
DKPA201170096A 2011-02-23 2011-02-23 A wind turbine blade DK177305B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DKPA201170096A DK177305B1 (en) 2011-02-23 2011-02-23 A wind turbine blade
PCT/DK2012/050033 WO2012113399A2 (en) 2011-02-23 2012-01-27 A wind turbine blade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201170096A DK177305B1 (en) 2011-02-23 2011-02-23 A wind turbine blade
DK201170096 2011-02-23

Publications (2)

Publication Number Publication Date
DK201170096A true DK201170096A (en) 2012-08-24
DK177305B1 DK177305B1 (en) 2012-11-12

Family

ID=45571289

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201170096A DK177305B1 (en) 2011-02-23 2011-02-23 A wind turbine blade

Country Status (2)

Country Link
DK (1) DK177305B1 (en)
WO (1) WO2012113399A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK178313B1 (en) * 2014-12-09 2015-11-30 Envision Energy Denmark Aps Wind turbine blade with air leakage protection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263846A (en) * 1992-09-17 1993-11-23 The United States Of America As Represented By The Secretary Of The Army Self-actuated rotor system
AU2002316786A1 (en) * 2002-05-17 2003-12-02 Vestas Wind Systems A/S Wind turbine rotor construction
DK176176B1 (en) * 2004-11-24 2006-11-27 Siemens Wind Power As Method and connector for assembling a blade, preferably wind turbine blade, into sections
US20090148285A1 (en) * 2007-12-06 2009-06-11 General Electric Company Multi-section wind turbine rotor blades and wind turbines incorporating same
US20090148291A1 (en) * 2007-12-06 2009-06-11 General Electric Company Multi-section wind turbine rotor blades and wind turbines incorporating same
US20120051914A1 (en) 2008-10-24 2012-03-01 Dehlsen James G P Cable-stayed rotor for wind and water turbines

Also Published As

Publication number Publication date
WO2012113399A2 (en) 2012-08-30
WO2012113399A3 (en) 2013-02-07
DK177305B1 (en) 2012-11-12

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Legal Events

Date Code Title Description
PBP Patent lapsed

Effective date: 20150228