CN101275535B - 风能设备的构件的连接结构 - Google Patents
风能设备的构件的连接结构 Download PDFInfo
- Publication number
- CN101275535B CN101275535B CN200810086687.XA CN200810086687A CN101275535B CN 101275535 B CN101275535 B CN 101275535B CN 200810086687 A CN200810086687 A CN 200810086687A CN 101275535 B CN101275535 B CN 101275535B
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- component
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- wind energy
- 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.)
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Links
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000003197 gene knockdown Methods 0.000 claims description 2
- 239000000543 intermediate Substances 0.000 claims 8
- 241000196324 Embryophyta Species 0.000 claims 5
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 208000034189 Sclerosis Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- PPWPWBNSKBDSPK-UHFFFAOYSA-N [B].[C] Chemical compound [B].[C] PPWPWBNSKBDSPK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- 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
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- 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
- F03D15/00—Transmission of mechanical power
- F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
-
- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- 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
- F05B2230/00—Manufacture
- F05B2230/20—Manufacture essentially without removing material
- F05B2230/25—Manufacture essentially without removing material by forging
-
- 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
- F05B2230/00—Manufacture
- F05B2230/40—Heat treatment
- F05B2230/41—Hardening; Annealing
-
- 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
- F05B2230/00—Manufacture
- F05B2230/90—Coating; Surface treatment
-
- 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
- F05B2280/00—Materials; Properties thereof
- F05B2280/50—Intrinsic material properties or characteristics
- F05B2280/5007—Hardness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2251/00—Material properties
- F05C2251/10—Hardness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/50—Flanged connections
-
- 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
- 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
- Y02E10/728—Onshore wind turbines
-
- 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)
- General 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)
- Wind Motors (AREA)
Abstract
Description
Claims (22)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007014860.9 | 2007-03-26 | ||
DE102007014860A DE102007014860B4 (de) | 2007-03-26 | 2007-03-26 | Verbindung von Bauteilen einer Windenergieanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101275535A CN101275535A (zh) | 2008-10-01 |
CN101275535B true CN101275535B (zh) | 2015-05-20 |
Family
ID=39186751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200810086687.XA Active CN101275535B (zh) | 2007-03-26 | 2008-03-26 | 风能设备的构件的连接结构 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8167575B2 (zh) |
EP (1) | EP1975405B1 (zh) |
CN (1) | CN101275535B (zh) |
DE (1) | DE102007014860B4 (zh) |
DK (1) | DK1975405T3 (zh) |
ES (1) | ES2709432T3 (zh) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009052825A2 (en) * | 2007-10-23 | 2009-04-30 | Vestas Wind Systems A/S | A wind turbine, a method for coupling a first drive train component of the drive train of a wind turbine to a second drive train component of the drive train and use of a wind turbine |
ATE544949T1 (de) * | 2007-12-28 | 2012-02-15 | Gamesa Innovation & Tech Sl | VERFAHREN ZUM ANSCHLIEßEN EINER LANGSAMEN WINDTURBINENHAUPTWELLE AN EINE EINGANGSWELLE EINES WINDTURBINENGETRIEBES UND DURCH DIESES VERFAHREN ERHALTENE KOPPLUNGSVORRICHTUNG |
DE102008036230B4 (de) * | 2008-08-02 | 2010-07-01 | Nordex Energy Gmbh | Verfahren zur Montage einer Rotornabe an einer Rotorwelle einer Windenergieanlage und Windenergieanlage |
EP2373899B1 (en) * | 2008-12-04 | 2017-02-08 | Jochen Corts | Compound steel bearings and methods of manufacturing |
GB0900945D0 (en) * | 2009-01-21 | 2009-03-04 | Aquamarine Power Ltd | Composite blade |
DE102009032239A1 (de) * | 2009-07-08 | 2011-03-24 | Aktiebolaget Skf | Wellenkupplung einer Wasserkraftanlage |
EP2354539B1 (de) * | 2010-01-14 | 2012-05-23 | Nordex Energy GmbH | Windenergieanlage mit einem Azimutsystem sowie Verfahren zur Azimutverstellung einer Windenergieanlage |
DE102010004662B4 (de) * | 2010-01-14 | 2014-12-24 | Siemens Aktiengesellschaft | Bor basierte Hartstoffbeschichtung einer Windkraftanlagenkomponente |
ES2387439B1 (es) * | 2010-10-18 | 2013-07-26 | Gamesa Innovation & Technology, S.L. | Unión entre el eje de entrada de la multiplicadora y eje de giro del rotor. |
DE102011005921A1 (de) * | 2010-12-07 | 2012-06-14 | Aktiebolaget Skf | Reibungserhöhender Lack und damit beschichtetes Maschinenteil |
DE102011002488A1 (de) * | 2011-01-10 | 2012-07-12 | Repower Systems Se | Anordnung von Bauteilen einer Windenergieanlage |
DK2532880T3 (en) | 2011-06-10 | 2014-03-17 | Siemens Ag | A rotor blade for a wind turbine |
EP2551512B1 (en) * | 2011-07-27 | 2014-04-16 | Alstom Renovables España, S.L. | Wind turbine blade connector assembly |
DE102012211263B4 (de) * | 2012-06-29 | 2014-02-27 | Aktiebolaget Skf | Maschinenanordnung |
US9470208B2 (en) * | 2012-07-05 | 2016-10-18 | General Electric Company | Wind turbine and locking method |
US20140010656A1 (en) * | 2012-07-05 | 2014-01-09 | Jacob Johannes Nies | Fixation device |
DE102014205195A1 (de) * | 2014-03-20 | 2015-09-24 | Wobben Properties Gmbh | Windenergieanlagen-Rotorblatt, Windenergieanlagen-Rotorblattanschluss und Windenergieanlage |
DE102014226126A1 (de) | 2014-12-16 | 2016-06-16 | Senvion Gmbh | Rotornabe für einen eine Rotorachse aufweisenden Rotor einer Windenergieanlage |
EP3320207B1 (en) * | 2015-07-06 | 2020-04-15 | Vestas Wind Systems A/S | Segmented pitch ring for a wind turbine blade pitch system |
US10262516B2 (en) * | 2016-06-01 | 2019-04-16 | Green Power Monitoring Systems, Inc. | Integrated hanger bearing monitor |
WO2018120081A1 (en) * | 2016-12-30 | 2018-07-05 | General Electric Company | Hub-to-shaft adapter for a rotor assembly of a wind turbine and related assembly methods |
US10502195B2 (en) * | 2017-04-27 | 2019-12-10 | General Electric Company | Clamping apparatus for securing a main bearing of a wind turbine during an installation and/or repair procedure |
CN112664392A (zh) | 2019-10-15 | 2021-04-16 | 通用电气公司 | 用于在延长的维护期间锁定风力涡轮转子的系统和方法 |
US11512728B2 (en) | 2020-01-10 | 2022-11-29 | General Electric Company | System and method for coupling a hub to a main shaft of a wind turbine |
US20220154687A1 (en) * | 2020-11-13 | 2022-05-19 | Wobben Properties Gmbh | Rotor hub for a wind power installation, and corresponding rotor arrangement and wind power installation |
US20220240657A1 (en) * | 2021-01-29 | 2022-08-04 | Nomadd Desert Solar Solutions | Shaft and a coupling member for coupling shafts |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8625580U1 (de) * | 1986-09-25 | 1986-11-06 | J.M. Voith Gmbh, 7920 Heidenheim | Flanschkupplung |
DE10119427A1 (de) * | 2001-04-20 | 2002-10-24 | Enron Wind Gmbh | Kopplungsvorrichtung für eine Windkraftanlage |
Family Cites Families (21)
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US1523296A (en) * | 1924-02-01 | 1925-01-13 | James T Ryan | Windmill lubricating system |
US2617672A (en) * | 1948-06-23 | 1952-11-11 | Harry J Nichols | Coupling |
US2879092A (en) * | 1957-12-13 | 1959-03-24 | Gen Electric | Friction shaft-coupling assembly |
US3656785A (en) * | 1970-03-14 | 1972-04-18 | Peter Oskar E | Hub-to-shaft connection |
US4168089A (en) * | 1977-11-02 | 1979-09-18 | Dresser Industries, Inc. | Service connector for plastic gas main |
GB9025988D0 (en) * | 1990-11-29 | 1991-01-16 | Rolls Royce Plc | A coupling and method of making the same |
DE9411375U1 (de) | 1994-07-14 | 1994-09-08 | INA Wälzlager Schaeffler KG, 91074 Herzogenaurach | Wälzlager-Drehverbindung |
JPH10311403A (ja) * | 1997-05-08 | 1998-11-24 | Tochigi Fuji Ind Co Ltd | デファレンシャル装置 |
DE19733372C1 (de) * | 1997-08-01 | 1999-01-07 | Aloys Wobben | Rotorblatt und Rotor einer Windenergieanlage |
JPH11280419A (ja) * | 1998-03-31 | 1999-10-12 | Sumitomo Electric Ind Ltd | シムとカムの組合せ体 |
DE19832921A1 (de) * | 1998-07-22 | 2000-02-10 | Joachim Kretz | Turmkonstruktion, insbesondere für Windkraftanlagen |
AU1772400A (en) | 1998-12-17 | 2000-07-03 | Dancontrol Engineering A/S | Wind mill with a suspension for cables and the like, such suspension for cables and the like and a holder for such suspension |
DE10011464C1 (de) | 2000-03-10 | 2001-08-16 | Aloys Wobben | Lagerung eines verstellbaren Rotorblatts einer Windenergieanlage |
US6413052B1 (en) * | 2000-08-15 | 2002-07-02 | Hamilton Sundstrand Corporation | Anti-fretting washer for flange joints |
DE10150166A1 (de) * | 2001-10-11 | 2003-05-08 | Wacker Chemie Gmbh | Toleranzring mit einer reibungserhöhenden Beschichtung |
DE10152018A1 (de) * | 2001-10-22 | 2003-04-30 | Gen Electric | Bauelementanordnung |
GB0130967D0 (en) * | 2001-12-24 | 2002-02-13 | Hunting Oilfield Services Ltd | Anti galling threaded joint |
AT6089U1 (de) * | 2002-05-17 | 2003-04-25 | Steyr Daimler Puch Ag | Anordnung zur verbindung von teilen mit elementen aus hochhartem werkstoff |
EP1571334A1 (en) * | 2004-03-04 | 2005-09-07 | Gamesa Eolica, S.A. (Sociedad Unipersonal) | Wind turbine yawing system and yawing process |
US7498683B2 (en) * | 2004-09-01 | 2009-03-03 | Wilhelm Landwehr | Device for converting flow energy into electrical energy |
US7201561B2 (en) * | 2005-05-18 | 2007-04-10 | United States Of America, As Represented By The Secretary Of Army | Swashplate seal assembly |
-
2007
- 2007-03-26 DE DE102007014860A patent/DE102007014860B4/de active Active
-
2008
- 2008-03-05 DK DK08004095.9T patent/DK1975405T3/en active
- 2008-03-05 EP EP08004095.9A patent/EP1975405B1/de active Active
- 2008-03-05 ES ES08004095T patent/ES2709432T3/es active Active
- 2008-03-25 US US12/055,005 patent/US8167575B2/en active Active
- 2008-03-26 CN CN200810086687.XA patent/CN101275535B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8625580U1 (de) * | 1986-09-25 | 1986-11-06 | J.M. Voith Gmbh, 7920 Heidenheim | Flanschkupplung |
DE10119427A1 (de) * | 2001-04-20 | 2002-10-24 | Enron Wind Gmbh | Kopplungsvorrichtung für eine Windkraftanlage |
Also Published As
Publication number | Publication date |
---|---|
DE102007014860B4 (de) | 2010-04-01 |
ES2709432T3 (es) | 2019-04-16 |
US20080240922A1 (en) | 2008-10-02 |
DE102007014860A1 (de) | 2008-10-02 |
EP1975405A3 (de) | 2010-06-16 |
EP1975405B1 (de) | 2018-10-31 |
CN101275535A (zh) | 2008-10-01 |
US8167575B2 (en) | 2012-05-01 |
DK1975405T3 (en) | 2019-02-25 |
EP1975405A2 (de) | 2008-10-01 |
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SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: hamburg Applicant after: Senvion SE Address before: hamburg Applicant before: Repower Systems AG Address after: hamburg Applicant after: Repower Systems AG Address before: hamburg Applicant before: Repower Systems AG |
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COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: REPOWER SYSTEMS AG TO: REPOWER SYSTEMS AG Free format text: CORRECT: APPLICANT; FROM: REPOWER SYSTEMS AG TO: SENVION EUROPE SE |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Hamburg, Germany Patentee after: SENVION SE Address before: Hamburg, Germany Patentee before: senvian ag Address after: Hamburg, Germany Patentee after: senvian ag Address before: Hamburg, Germany Patentee before: Senvion SE |
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Effective date of registration: 20220812 Address after: Hamburg, Germany Patentee after: Siemens COMESA renewable energy services Co.,Ltd. Address before: Hamburg, Germany Patentee before: SENVION SE |