CN101970860A - 制造转子叶片的叶片接头的方法、叶片接头和用于叶片接头的固定元件 - Google Patents
制造转子叶片的叶片接头的方法、叶片接头和用于叶片接头的固定元件 Download PDFInfo
- Publication number
- CN101970860A CN101970860A CN2009801150874A CN200980115087A CN101970860A CN 101970860 A CN101970860 A CN 101970860A CN 2009801150874 A CN2009801150874 A CN 2009801150874A CN 200980115087 A CN200980115087 A CN 200980115087A CN 101970860 A CN101970860 A CN 101970860A
- Authority
- CN
- China
- Prior art keywords
- blade
- fixed element
- blade joint
- joint
- fixed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 125000006850 spacer group Chemical group 0.000 claims description 35
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 5
- 239000002650 laminated plastic Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
-
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Connection Of Plates (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims (54)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008021498.1 | 2008-04-29 | ||
DE102008021498A DE102008021498A1 (de) | 2008-04-29 | 2008-04-29 | Verfahren zur Fertigung eines Blattanschlusses eines Rotorblatts, ein Blattanschluss und ein Befestigungselement für einen Blattanschluss |
PCT/DE2009/000488 WO2009132612A1 (de) | 2008-04-29 | 2009-04-08 | Verfahren zur fertigung eines blattanschlusses eines rotorblatts, ein blattanschluss und ein befestigungselement für einen blattanschluss |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101970860A true CN101970860A (zh) | 2011-02-09 |
CN101970860B CN101970860B (zh) | 2013-07-24 |
Family
ID=41102797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009801150874A Active CN101970860B (zh) | 2008-04-29 | 2009-04-08 | 制造转子叶片的叶片接头的方法、叶片接头和用于叶片接头的固定元件 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8727731B2 (zh) |
EP (1) | EP2283231B2 (zh) |
CN (1) | CN101970860B (zh) |
AT (1) | ATE548563T1 (zh) |
BR (1) | BRPI0911877B1 (zh) |
DE (2) | DE102008021498A1 (zh) |
DK (1) | DK2283231T4 (zh) |
ES (1) | ES2382439T5 (zh) |
WO (1) | WO2009132612A1 (zh) |
Cited By (4)
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CN102817791A (zh) * | 2011-06-10 | 2012-12-12 | 西门子公司 | 用于风力涡轮机的转子叶片 |
CN104822936A (zh) * | 2012-09-17 | 2015-08-05 | Lmwp专利控股有限公司 | 具有紧固装置的风力涡轮机叶片 |
CN106368893A (zh) * | 2015-07-22 | 2017-02-01 | 通用电气公司 | 用于风力涡轮的转子叶片根部组件 |
CN106574601A (zh) * | 2014-07-22 | 2017-04-19 | 乌本产权有限公司 | 风能设备转子叶片后缘区段 |
Families Citing this family (39)
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DE102008012664A1 (de) | 2008-01-30 | 2009-08-06 | Repower Systems Ag | Windenergieanlage und ein Turm oder Turmsegment und eine Türzarge dafür |
GB0822681D0 (en) * | 2008-12-12 | 2009-01-21 | Aviat Entpr Ltd | Rotor blades |
DE102010011549A1 (de) | 2010-03-15 | 2011-09-15 | Repower Systems Ag | Wartungsazimutwinkel |
DE202010013535U1 (de) | 2010-09-24 | 2010-12-02 | Repower Systems Ag | Blattanschluss eines Rotorblatts einer Windenergieanlage |
CN103635306B (zh) * | 2011-04-11 | 2016-05-04 | Lmwp专利控股有限公司 | 包括在其根部区域中的圆柱形金属***件的风力涡轮机叶片 |
DK2532880T3 (en) | 2011-06-10 | 2014-03-17 | Siemens Ag | A rotor blade for a wind turbine |
ES2393865B2 (es) * | 2011-06-13 | 2013-06-26 | Investigaciones Y Desarrollos Eólicos, S.L. | Método de colocación de insertos en piezas de material compuesto. |
DE102011051172A1 (de) | 2011-06-17 | 2012-12-20 | Lars Kästner | Laminiertes Rotorblatt für Windenergieanlagen mit einem Befestigungssystem für Rotorblätter an der Rotornabe |
EP2551512B1 (en) | 2011-07-27 | 2014-04-16 | Alstom Renovables España, S.L. | Wind turbine blade connector assembly |
EP2589796B1 (en) | 2011-11-04 | 2015-07-29 | Siemens Aktiengesellschaft | Manufacture of a root section |
ES2531181T3 (es) | 2011-11-11 | 2015-03-11 | Nordex Energy Gmbh | Conexión de pala para una pala de rotor de una planta de energía eólica |
EP2623771A1 (en) * | 2012-02-03 | 2013-08-07 | E.On Climate and Renewables UK Ltd. | Wind turbine blade mounting element and method of repair |
EP2677166B1 (en) | 2012-06-22 | 2015-08-12 | ALSTOM Renewable Technologies | Wind turbine blade with means for hoisting at the blade root and method of hoisting a blade |
ES2475491B1 (es) | 2013-01-10 | 2015-04-17 | Ingeniería Prosix, S.L. | Pala de turbina eólica |
WO2014191046A1 (en) * | 2013-05-31 | 2014-12-04 | Lm Wp Patent Holding A/S | System and method for assisting in the manufacture of a wind turbine blade shell |
US9464622B2 (en) | 2013-05-31 | 2016-10-11 | General Electric Company | Rotor blade assembly having a stiffening root insert |
US20150071701A1 (en) * | 2013-09-06 | 2015-03-12 | Amool Raina | Insert and Method of Attaching Insert to Structure |
EP2952734B1 (en) * | 2014-06-05 | 2021-04-07 | Siemens Gamesa Renewable Energy A/S | A root bushing for a blade root of a wind turbine rotor blade, a blade root, a wind turbine rotor blade and a wind turbine |
EP2952735A1 (en) * | 2014-06-05 | 2015-12-09 | Siemens Aktiengesellschaft | A root bushing for a wind turbine rotor blade, a wind turbine rotor blade, a wind turbine and a method for manufacturing a wind turbine rotor blade for a wind turbine |
EP2963282B1 (en) * | 2014-07-04 | 2018-10-24 | Siemens Aktiengesellschaft | Mounting ring arrangement for wind turbine blade |
DE202014007558U1 (de) * | 2014-09-22 | 2014-11-18 | Wpt Nord Gmbh | Bohrwerkzeug zur Modifikation einer Sacklochbohrung |
US9745956B2 (en) | 2014-12-10 | 2017-08-29 | General Electric Company | Spar cap for a wind turbine rotor blade |
DE102015007977A1 (de) | 2015-06-23 | 2016-12-29 | Senvion Gmbh | Rotorblattanschluss mit Stahl-Laminat-Verklebung |
US10190571B2 (en) | 2015-07-01 | 2019-01-29 | General Electric Company | Ring insert for a wind turbine rotor blade |
US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
US10626847B2 (en) | 2017-01-05 | 2020-04-21 | General Electric Company | Method for manufacturing a wind turbine rotor blade root section with pultruded rods and associated wind turbine blade |
EP3697603A1 (en) * | 2017-10-18 | 2020-08-26 | LM Wind Power International Technology II ApS | A wind turbine blade comprising a root end structure with an adaptive positioning of the pultruded element |
US10677216B2 (en) | 2017-10-24 | 2020-06-09 | General Electric Company | Wind turbine rotor blade components formed using pultruded rods |
US11408392B2 (en) | 2017-12-08 | 2022-08-09 | Vestas Wind Systems A/S | Insert and blank for a wind turbine blade root |
US11167507B2 (en) | 2018-03-16 | 2021-11-09 | General Electric Company | Method for manufacturing a wind turbine rotor blade root assembly |
US11738530B2 (en) | 2018-03-22 | 2023-08-29 | General Electric Company | Methods for manufacturing wind turbine rotor blade components |
ES2918026T3 (es) * | 2018-04-16 | 2022-07-13 | Nordex Energy Se & Co Kg | Cojinete para una pala de rotor de turbina eólica, inserto de pestaña, pala de rotor de turbina eólica y turbina eólica |
EP3561292B1 (de) * | 2018-04-25 | 2023-01-18 | Nordex Energy SE & Co. KG | Befestigungsschraubbolzen für die herstellung eines flanschanschlusses eines windenergieanlagenrotorblatts, system, verfahren, flanscheinleger, rotorblatt sowie windenergieanlage |
DE102018005679A1 (de) | 2018-07-19 | 2020-01-23 | Senvion Gmbh | Rotorblattanschluss und ein Verfahren zu seiner Herstellung |
DE102019000056A1 (de) | 2019-01-08 | 2020-07-09 | Senvion Gmbh | Windkraftanlage mit Befestigungselementen für ein Rotorblatt und ein Verfahren zur Herstellung einer Windkraftanlage |
EP3822065B1 (en) * | 2019-11-14 | 2024-07-31 | Siemens Gamesa Renewable Energy A/S | Method for manufacturing root segment sections for a root segment of a turbine blade, method for manufacturing the root segment and method for manufacturing the turbine blade |
CN111022248B (zh) * | 2019-12-26 | 2024-04-16 | 中材科技风电叶片股份有限公司 | 风电叶片叶根的预制件、叶根部件、叶片及其制造方法 |
EP4119790A1 (en) | 2021-07-12 | 2023-01-18 | General Electric Renovables España S.L. | Wind turbine blade assembly and methods |
EP4239186A1 (en) * | 2022-03-02 | 2023-09-06 | LM Wind Power A/S | Fastener assembly, wind turbine hub assembly and related methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001042647A2 (en) * | 1999-12-09 | 2001-06-14 | Aerpac Holding B.V. | Wind turbine rotor, and hub and extender therefor |
WO2003057457A1 (en) * | 2002-01-11 | 2003-07-17 | Lm Glasfiber A/S | An embedding element to be embedded in the end part of a windmill blade, a method of producing such an embedding element as well as embedding of such embedding elements in a windmill blade |
FR2863321A1 (fr) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Pale d'aerogenerateur integrant des moyens de liaison ameliores entre la racine de la pale et le moyeu de l'aerogenerateur, bride, procede de fabrication et aerogenerateur correspondant |
US20050254949A1 (en) * | 2004-05-11 | 2005-11-17 | Repower Systems Ag | Wind turbine |
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DK148088A (da) † | 1988-03-18 | 1989-09-19 | Aerostar Denmark A S | Vindmoellevinge |
JP3530261B2 (ja) † | 1995-03-31 | 2004-05-24 | 三菱重工業株式会社 | 風車翼 |
JPH11182408A (ja) † | 1997-12-15 | 1999-07-06 | Mitsubishi Heavy Ind Ltd | 風車翼取付装置 |
EP1486415A1 (en) | 2003-06-12 | 2004-12-15 | SSP Technology A/S | Wind turbine blade and method of manufacturing a blade root |
DE102004056340B4 (de) | 2004-11-22 | 2010-11-18 | Repower Systems Ag | Vorrichtung und Verfahren zur Montage und/oder Demontage eines Bauteils einer Windkraftanlage |
AU2004326123B2 (en) † | 2004-12-29 | 2009-04-23 | Vestas Wind Systems A/S | Method of manufacturing a wind turbine blade shell member with a fastening member and a wind turbine blade with a fastening member |
DE102005014868A1 (de) | 2005-03-30 | 2006-10-05 | Repower Systems Ag | Offshore-Windenergieanlage mit rutschfesten Füßen |
DE102006021982C5 (de) | 2006-05-10 | 2010-10-07 | Repower Systems Ag | Gestaffelt abschaltbarer Windpark |
DE102007014863A1 (de) | 2007-03-26 | 2008-10-02 | Repower Systems Ag | Verfahren zum Betreiben einer Windenergieanlage |
DE102008012664A1 (de) | 2008-01-30 | 2009-08-06 | Repower Systems Ag | Windenergieanlage und ein Turm oder Turmsegment und eine Türzarge dafür |
-
2008
- 2008-04-29 DE DE102008021498A patent/DE102008021498A1/de not_active Withdrawn
-
2009
- 2009-04-08 BR BRPI0911877A patent/BRPI0911877B1/pt active IP Right Grant
- 2009-04-08 EP EP09737720.4A patent/EP2283231B2/de active Active
- 2009-04-08 CN CN2009801150874A patent/CN101970860B/zh active Active
- 2009-04-08 DE DE112009001589T patent/DE112009001589A5/de not_active Ceased
- 2009-04-08 US US12/990,002 patent/US8727731B2/en active Active
- 2009-04-08 AT AT09737720T patent/ATE548563T1/de active
- 2009-04-08 WO PCT/DE2009/000488 patent/WO2009132612A1/de active Application Filing
- 2009-04-08 DK DK09737720.4T patent/DK2283231T4/en active
- 2009-04-08 ES ES09737720.4T patent/ES2382439T5/es active Active
Patent Citations (4)
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WO2001042647A2 (en) * | 1999-12-09 | 2001-06-14 | Aerpac Holding B.V. | Wind turbine rotor, and hub and extender therefor |
WO2003057457A1 (en) * | 2002-01-11 | 2003-07-17 | Lm Glasfiber A/S | An embedding element to be embedded in the end part of a windmill blade, a method of producing such an embedding element as well as embedding of such embedding elements in a windmill blade |
FR2863321A1 (fr) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Pale d'aerogenerateur integrant des moyens de liaison ameliores entre la racine de la pale et le moyeu de l'aerogenerateur, bride, procede de fabrication et aerogenerateur correspondant |
US20050254949A1 (en) * | 2004-05-11 | 2005-11-17 | Repower Systems Ag | Wind turbine |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102817791A (zh) * | 2011-06-10 | 2012-12-12 | 西门子公司 | 用于风力涡轮机的转子叶片 |
US9234497B2 (en) | 2011-06-10 | 2016-01-12 | Siemens Aktiengesellschaft | Rotor blade for a wind turbine |
CN102817791B (zh) * | 2011-06-10 | 2016-12-14 | 西门子公司 | 用于风力涡轮机的转子叶片 |
CN104822936A (zh) * | 2012-09-17 | 2015-08-05 | Lmwp专利控股有限公司 | 具有紧固装置的风力涡轮机叶片 |
CN106574601A (zh) * | 2014-07-22 | 2017-04-19 | 乌本产权有限公司 | 风能设备转子叶片后缘区段 |
CN106574601B (zh) * | 2014-07-22 | 2019-05-07 | 乌本产权有限公司 | 风能设备转子叶片后缘区段 |
CN106368893A (zh) * | 2015-07-22 | 2017-02-01 | 通用电气公司 | 用于风力涡轮的转子叶片根部组件 |
CN106368893B (zh) * | 2015-07-22 | 2020-06-26 | 通用电气公司 | 用于风力涡轮的转子叶片根部组件 |
Also Published As
Publication number | Publication date |
---|---|
EP2283231B1 (de) | 2012-03-07 |
ES2382439T3 (es) | 2012-06-08 |
EP2283231A1 (de) | 2011-02-16 |
WO2009132612A1 (de) | 2009-11-05 |
US8727731B2 (en) | 2014-05-20 |
EP2283231B2 (de) | 2017-03-08 |
US20110044817A1 (en) | 2011-02-24 |
ES2382439T5 (es) | 2017-08-21 |
DE112009001589A5 (de) | 2011-03-31 |
CN101970860B (zh) | 2013-07-24 |
BRPI0911877B1 (pt) | 2020-04-28 |
BRPI0911877A2 (pt) | 2018-08-14 |
DE102008021498A1 (de) | 2009-11-05 |
DK2283231T3 (da) | 2012-06-11 |
ATE548563T1 (de) | 2012-03-15 |
DK2283231T4 (en) | 2017-05-08 |
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