WO2012156547A1 - Sistema. de unión de tramos componentes de palas de aerogenerador - Google Patents
Sistema. de unión de tramos componentes de palas de aerogenerador Download PDFInfo
- Publication number
- WO2012156547A1 WO2012156547A1 PCT/ES2012/000118 ES2012000118W WO2012156547A1 WO 2012156547 A1 WO2012156547 A1 WO 2012156547A1 ES 2012000118 W ES2012000118 W ES 2012000118W WO 2012156547 A1 WO2012156547 A1 WO 2012156547A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sections
- screws
- bolts
- blade
- transverse
- Prior art date
Links
- 238000005304 joining Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000000295 complement effect Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
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
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/0004—Joining sheets, plates or panels in abutting relationship
- F16B5/0084—Joining sheets, plates or panels in abutting relationship characterised by particular locking means
-
- 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
- F05B2240/302—Segmented or sectional 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
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/301—Retaining bolts or nuts
-
- 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
Definitions
- the present invention is related to wind turbine blades that are carried out in sections to facilitate transport, proposing a system that allows determining the union of the component sections of the blades in an advantageous manner.
- Bonding joints require that facilities with controlled conditions of humidity, temperature, etc., such as those of manufacturing plants, and transfer the necessary machinery and tools to these installations to perform the bonding between the component sections of the blades, making it very difficult to obtain efficient and reliable joints, using this technology.
- the mechanical joints are based on the use of bolts or screws that are threadedly coupled to elements as nuts fixed in the forming material of the sections of the blades or arranged in holes of said material.
- a type of mechanical connection of spade sections in that sense, consists of a direct connection between the sections to be joined, by means of bolts or screws that are screwed at one end with respect to metal bolts included in the composite material of one of the sections, passing said bolts or screws through longitudinal holes facing the sections to be joined, to a gap defined in the other section, where at the other end of the bolts a nut or element is incorporated as a tightening nut.
- Solutions of this type are, for example, those of WO2010081921, O2007131937, US2010143148 and ES8503080.
- Another type of mechanical connection between spade sections consists in arranging one or several intermediate pieces between the sections to be joined, said pieces being fixed with threaded bolts on each of the sections that are joined.
- Such a solution is, for example, that of WO2006056584.
- Another type of mechanical connection between spade sections consists of arranging respective metal parts. fixed by various methods on the corresponding ends of the sections to be joined, then establishing a fastening by screwing between the two pieces fixed to the sections that are joined. Solutions of this type are, for example, those of documents WO2006103307, WO2011006800, ES2178903, ES2337645, EP2138715 and JP2004011616.
- This joint system object of the invention consists of one or several intermediate pieces that are arranged between the sections of the blade to be joined, which are joined to said intermediate pieces by means of bolts or screws that pass through longitudinal holes of said intermediate pieces, establishing threaded coupling with respect to anchoring pieces as nuts housed within the material of the blade sections, the intermediate pieces presenting a complex structure formed by openings and columns that determines both extreme transverse partitions which rest on the anchoring pieces and a middle transverse septum, through which long bolts or screws pass through the interior of the columns from the middle transverse septum and short bolts or screws that pass only through the extreme transverse partitions, to the anchoring parts of the spade sections to be joined.
- a system is thus obtained in which the connecting bolts or screws establish on the part or intermediate pieces a pressure line at the edge and another pressure line in the middle zone, in relation to each of the blade sections to join, generating in the piece or intermediate pieces a predominant compression state that allows to reduce the stresses that must resist.
- the threaded couplings of the connecting bolts or screws of the part or intermediate parts with the spade sections, on the anchoring parts housed in the material of the spade sections, are also provided alternately of two different lengths, whereby it also achieves a distribution of the clamping forces on the spade sections that allows resistant joints with reduced localized efforts.
- the joining system allows the integration in various models of blades with different internal architectures (such as mono and bi stringer, drawer beam, etc.), without producing greater impact on the overall design of the blade.
- the neutral line of the part or intermediate pieces is perfectly aligned with the axis of the bolts or screws, these being in turn aligned with the neutral line of the wall of the blade sections that join, which do not generate secondary bending moments in the joint, which determines a structurally very effective union.
- the joining system which will be covered with an aerodynamic fairing, does not protrude from the aerodynamic surface of the blade that is formed, so that the energy production of the blade is not affected.
- Figure 1 shows a connection detail between two spade sections according to the system of the invention, with a single intermediate piece.
- Figure 2 is a detail like that of the previous figure, including the joining of two complementary intermediate pieces in the longitudinal direction of the joint.
- Figure 3 is a detail similar to the previous ones, including the joining of several complementary intermediate pieces in the transverse direction of the joint, each comprising two openings, two short bolts or screws and two other long ones.
- Figure 4 is a detail like the previous one, with the complementary intermediate parts in the transverse direction of the joint, each of them comprising three openings, three short bolts or screws and another three long ones.
- Figure 5 is a detail similar to that of Figure 1, with the connecting bolts or screws of the intermediate parts with respect to the blade sections entering with a distribution of two different lengths in the blade sections.
- Figure 6 is a detail similar to that of Figure 1, with the intermediate piece formed with blind openings on one of the faces of the piece.
- Figure 7 is a detail of the end of a section of blade, observing the position of the joint system in partial areas of the contour of the profile of the section, which correspond to the areas of greatest load transmission.
- the object of the invention relates to a system for joining sections (1) components of wind turbine blades, with an embodiment that provides advantageous constructive and functional characteristics for that function.
- the recommended system consists of one or several intermediate pieces (2), which are arranged between the sections (1) of the blade to be joined, said intermediate parts (2) being fixed with respect to the end fronts of the sections (1) of the blade on parts of anchorage (4), by means of bolts or screws (3) that pass through longitudinal holes of the mentioned intermediate pieces (2) and are screwed in relation to the anchoring pieces (4) as nuts that are housed in the sections (1) of shovel.
- the intermediate pieces (2) that are arranged between the sections (1) of the blade to be joined are formed by a complex structure that determines extreme transverse partitions (2.1) and a middle transverse partition (2.2), between which a series of columns (2.3) separated by openings (2.4).
- the bolts or screws (3) for fixing on the spade sections (1) pass through the end transverse partitions (2.1) and the middle transverse partition (2.2), passing bolts or screws ( 3) short from the openings (2.4) directly through the extreme transverse partitions (2.1), while other long bolts or screws (3) pass through the middle transverse septum (2.2) and from it through the interior of the columns (2.3) until crossing the corresponding extreme transverse septum (2.1).
- the threaded couplings of the bolts or screws (3) on the anchoring pieces (4) housed in the material of the blade sections (1) are provided with two alternately different lengths, for example those that pass directly through the extreme transverse partitions (2.1), in greater depth, and that of the other bolts or screws (3), in this case those that pass through the interior of the columns (2.3), in less depth, in the sections (1) blade, as seen in Figure 5, which also achieves a distribution of the clamping forces on the sections (1) of blade, which makes the efforts located therein in turn are reduced .
- the indicated distribution is not limiting, since it can also be the bolts or screws (3) that pass directly through the extreme transverse partitions (2.1) that penetrate the shallower sections (1) in less depth, and the bolts or screws (3) that pass through the interior of the columns (2.3) those that penetrate deeper.
- the joining of the blade sections (1) can be determined with a single intermediate piece (2), as in the embodiment of Figure 1, determining that single piece both the partitions extreme transverse (2.1) as the middle transverse septum (2.2).
- the joint can also be determined with two intermediate pieces (2) complementary in longitudinal direction, as in the embodiment of Figure 2, each of said complementary parts determining an extreme transverse partition (2.1) and in the opposite part another partition transverse which, together with the correlative transverse septum of the other complementary piece, determine the middle transverse septum (2.2) of the joint.
- the joint can be determined with complementary intermediate pieces (2) in the transverse direction, which can include groups of four or more bolts or screws (3), as in the embodiments of Figures 3 and 4, determining a similar effect for the union of two spade sections (1) by means of a complex intermediate structure in which a distribution of long bolts or screws (3) and a distribution of short bolts or screws (3) are arranged in each of the directions, for the fixation on the sections (1) of blade to join.
- An embodiment of the part or intermediate parts (2) with the openings (2.4) blind on one side of the corresponding part is also provided, as in the embodiment of Figure 6, thus allowing to determine a continuous surface joint, for example in the outer part of the blade that is formed with the sections (1) attached, and only with cavities on the inner face of the intermediate pieces (2) for the introduction and actuation of the bolts or screws (3) of the joint, or alternatively with the continuous surface in the part inside of the shovel.
- the joining system by means of intermediate pieces (2) can be applied, inter alia, in the middle area of the walls forming the profile of the blade sections (1), which is conventionally a structural zone more resistant than the rest of the profile, so that the concentration of fastening bolts or screws (3) that determines this system of the invention, allows obtaining a connection of the blade sections (1) capable of withstanding the main efforts to the that the shovel that is composed with the union is subjected.
- This joining system can also be used for joining sections (1) of shovel formed with an internal structural framework in the form of a beam or a drawer, or any other type of structure, the union being able to be established, in this case, by arranging the intermediate parts (2) of the joint system between the internal structural frames of the blade sections (1).
- the area of the joint between the spade sections (1), as well as the rest of the contour of the profile of the blade corresponding to said area of the joint, is covered with a fairing, to give continuity to the surface aerodynamics of the blade between the sections (1) joined.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014510839A JP6027096B2 (ja) | 2011-05-13 | 2012-05-03 | 風力タービンブレードの構成部分を結合するためのシステム |
BR112013029116-8A BR112013029116B1 (pt) | 2011-05-13 | 2012-05-03 | sistema de conexão para conectar seções do componente de lâminas de turbinas de vento |
US14/117,479 US9574545B2 (en) | 2011-05-13 | 2012-05-03 | Connection system for connecting component sections of wind turbine blades |
EP12785662.3A EP2708735B1 (en) | 2011-05-13 | 2012-05-03 | Connection system for connecting component sections of wind turbine blades |
DK12785662.3T DK2708735T3 (en) | 2011-05-13 | 2012-05-03 | A connector system for connecting the component sections of wind turbine blades |
ES12785662.3T ES2604954T3 (es) | 2011-05-13 | 2012-05-03 | Sistema de unión de tramos componentes de palas de aerogenerador |
CN201280023005.5A CN103765004B (zh) | 2011-05-13 | 2012-05-03 | 用于连接风力涡轮机叶片的部件段的连接系统 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP201100527 | 2011-05-13 | ||
ES201100527A ES2392523B2 (es) | 2011-05-13 | 2011-05-13 | Sistema de unión de tramos componentes de palas de aerogenerador. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012156547A1 true WO2012156547A1 (es) | 2012-11-22 |
Family
ID=47176337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2012/000118 WO2012156547A1 (es) | 2011-05-13 | 2012-05-03 | Sistema. de unión de tramos componentes de palas de aerogenerador |
Country Status (9)
Country | Link |
---|---|
US (1) | US9574545B2 (es) |
EP (1) | EP2708735B1 (es) |
JP (1) | JP6027096B2 (es) |
CN (1) | CN103765004B (es) |
BR (1) | BR112013029116B1 (es) |
DK (1) | DK2708735T3 (es) |
ES (2) | ES2392523B2 (es) |
PL (1) | PL2708735T3 (es) |
WO (1) | WO2012156547A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746574A3 (en) * | 2012-12-21 | 2018-02-21 | General Electric Company | Joints for connecting blade segments of a wind turbine rotor blade |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK3441561T3 (da) * | 2016-04-04 | 2023-06-12 | Nabrawind Tech Sl | Indretning til sammenføjning af et modulært blad |
CN106762462B (zh) * | 2016-12-29 | 2018-04-24 | 北京金风科创风电设备有限公司 | 螺栓套连接件、叶片和叶片制造方法及风力发电机组 |
EP4155530A1 (de) | 2021-09-23 | 2023-03-29 | Wobben Properties GmbH | Windenergieanlagen-rotorblatt und verfahren zur montage eines windenergieanlagen- rotorblattes |
DE102022001676A1 (de) | 2022-05-12 | 2023-11-16 | Adc Connection Solutions Gmbh | Vorrichtung und Verfahren zum Toleranzausgleich vorgespannter Verbindungsanordnungen |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES8503080A1 (es) | 1981-04-01 | 1985-02-01 | Messerschmitt Boelkow Blohm | Ala grande aerodinamica. |
ES2178903A1 (es) | 1999-05-31 | 2003-01-01 | Torres Martinez M | Pala para aerogenerador. |
JP2004011616A (ja) | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | 風力発電機の風車ブレード構造 |
EP1584817A1 (en) * | 2004-04-07 | 2005-10-12 | Gamesa Eolica, S.A. (Sociedad Unipersonal) | Wind turbine blade |
WO2006056584A1 (en) | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Method and connecting piece for assembling windmill blade sections |
WO2006103307A2 (es) | 2005-03-31 | 2006-10-05 | Gamesa Innovation And Technology, S.L. | Pala para generadores eólicos |
WO2007131937A1 (de) | 2006-05-11 | 2007-11-22 | Wobben, Aloys | Rotorblatt für eine windenergieanlage |
US20080240925A1 (en) * | 2007-01-23 | 2008-10-02 | Fuji Jukogyo Kabushiki Kaisha | Separable blade for wind turbine |
US20090226320A1 (en) * | 2008-03-05 | 2009-09-10 | Manuel Torres Martinez | System for connecting wind generator blade sections |
EP2138715A2 (en) | 2008-06-27 | 2009-12-30 | Gamesa Innovation & Technology, S.L. | Wind turbine blade insert |
ES2337645A1 (es) | 2007-09-14 | 2010-04-27 | GAMESA INNOVATION & TECHNOLOGY, S.L. | Union de pala sensorizada. |
US20100143148A1 (en) | 2008-12-12 | 2010-06-10 | General Electric Company | Turbine blade and method of fabricating the same |
WO2010081921A1 (es) | 2009-01-19 | 2010-07-22 | Torres Martinez M | Pala de aerogenerador |
WO2011006800A1 (fr) | 2009-07-16 | 2011-01-20 | Astrium Sas | Dispositif d'assemblage de tronçons de pales d'eoliennes et procede de liaison de tronçons de pales d'eoliennes |
ES2352945A1 (es) * | 2007-11-23 | 2011-02-16 | Fundacion Cener Ciemat | Sistema de amarre para la union de tramos de palas de aerogenerador partidas |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US2133146A (en) * | 1937-08-13 | 1938-10-11 | Gen Electric | Flanged joint |
JPS57120770U (es) * | 1981-01-19 | 1982-07-27 | ||
DE19962989B4 (de) * | 1999-12-24 | 2006-04-13 | Wobben, Aloys, Dipl.-Ing. | Rotorblatt für Windenergieanlagen |
FR2821129B1 (fr) * | 2001-02-22 | 2003-05-16 | Eads Airbus Sa | Dispositif d'assemblage d'un panneau et d'une structure, apte a transmettre des efforts importants |
US7517194B2 (en) * | 2006-04-30 | 2009-04-14 | General Electric Company | Rotor blade for a wind turbine |
WO2009135902A2 (en) * | 2008-05-07 | 2009-11-12 | Vestas Wind Systems A/S | A sectional blade |
CN101718250B (zh) * | 2010-01-11 | 2011-11-09 | 华锐风电科技(集团)股份有限公司 | 风力发电机组分段式风轮叶片及其装配方法 |
US20120141287A1 (en) * | 2011-08-29 | 2012-06-07 | General Electric Company | Wind turbine rotor blade joint |
-
2011
- 2011-05-13 ES ES201100527A patent/ES2392523B2/es not_active Expired - Fee Related
-
2012
- 2012-05-03 DK DK12785662.3T patent/DK2708735T3/en active
- 2012-05-03 CN CN201280023005.5A patent/CN103765004B/zh not_active Expired - Fee Related
- 2012-05-03 JP JP2014510839A patent/JP6027096B2/ja not_active Expired - Fee Related
- 2012-05-03 WO PCT/ES2012/000118 patent/WO2012156547A1/es active Application Filing
- 2012-05-03 BR BR112013029116-8A patent/BR112013029116B1/pt not_active IP Right Cessation
- 2012-05-03 ES ES12785662.3T patent/ES2604954T3/es active Active
- 2012-05-03 US US14/117,479 patent/US9574545B2/en active Active
- 2012-05-03 EP EP12785662.3A patent/EP2708735B1/en active Active
- 2012-05-03 PL PL12785662T patent/PL2708735T3/pl unknown
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES8503080A1 (es) | 1981-04-01 | 1985-02-01 | Messerschmitt Boelkow Blohm | Ala grande aerodinamica. |
ES2178903A1 (es) | 1999-05-31 | 2003-01-01 | Torres Martinez M | Pala para aerogenerador. |
JP2004011616A (ja) | 2002-06-11 | 2004-01-15 | Shin Meiwa Ind Co Ltd | 風力発電機の風車ブレード構造 |
EP1584817A1 (en) * | 2004-04-07 | 2005-10-12 | Gamesa Eolica, S.A. (Sociedad Unipersonal) | Wind turbine blade |
WO2006056584A1 (en) | 2004-11-24 | 2006-06-01 | Siemens Aktiengesellschaft | Method and connecting piece for assembling windmill blade sections |
WO2006103307A2 (es) | 2005-03-31 | 2006-10-05 | Gamesa Innovation And Technology, S.L. | Pala para generadores eólicos |
WO2007131937A1 (de) | 2006-05-11 | 2007-11-22 | Wobben, Aloys | Rotorblatt für eine windenergieanlage |
US20080240925A1 (en) * | 2007-01-23 | 2008-10-02 | Fuji Jukogyo Kabushiki Kaisha | Separable blade for wind turbine |
ES2337645A1 (es) | 2007-09-14 | 2010-04-27 | GAMESA INNOVATION & TECHNOLOGY, S.L. | Union de pala sensorizada. |
ES2352945A1 (es) * | 2007-11-23 | 2011-02-16 | Fundacion Cener Ciemat | Sistema de amarre para la union de tramos de palas de aerogenerador partidas |
US20090226320A1 (en) * | 2008-03-05 | 2009-09-10 | Manuel Torres Martinez | System for connecting wind generator blade sections |
EP2138715A2 (en) | 2008-06-27 | 2009-12-30 | Gamesa Innovation & Technology, S.L. | Wind turbine blade insert |
US20100143148A1 (en) | 2008-12-12 | 2010-06-10 | General Electric Company | Turbine blade and method of fabricating the same |
WO2010081921A1 (es) | 2009-01-19 | 2010-07-22 | Torres Martinez M | Pala de aerogenerador |
WO2011006800A1 (fr) | 2009-07-16 | 2011-01-20 | Astrium Sas | Dispositif d'assemblage de tronçons de pales d'eoliennes et procede de liaison de tronçons de pales d'eoliennes |
Non-Patent Citations (1)
Title |
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See also references of EP2708735A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746574A3 (en) * | 2012-12-21 | 2018-02-21 | General Electric Company | Joints for connecting blade segments of a wind turbine rotor blade |
Also Published As
Publication number | Publication date |
---|---|
US9574545B2 (en) | 2017-02-21 |
ES2392523A1 (es) | 2012-12-11 |
ES2392523B2 (es) | 2013-05-16 |
EP2708735A4 (en) | 2014-11-12 |
ES2604954T3 (es) | 2017-03-10 |
JP6027096B2 (ja) | 2016-11-16 |
BR112013029116A2 (pt) | 2017-02-07 |
CN103765004B (zh) | 2016-08-24 |
EP2708735B1 (en) | 2016-08-31 |
CN103765004A (zh) | 2014-04-30 |
JP2014513774A (ja) | 2014-06-05 |
BR112013029116B1 (pt) | 2021-05-18 |
EP2708735A1 (en) | 2014-03-19 |
DK2708735T3 (en) | 2016-12-19 |
PL2708735T3 (pl) | 2017-06-30 |
US20140271210A1 (en) | 2014-09-18 |
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