WO2003082551A1 - Blade connection for the rotor blades of a wind-energy turbine and a method for the production thereof - Google Patents
Blade connection for the rotor blades of a wind-energy turbine and a method for the production thereof Download PDFInfo
- Publication number
- WO2003082551A1 WO2003082551A1 PCT/DE2003/001023 DE0301023W WO03082551A1 WO 2003082551 A1 WO2003082551 A1 WO 2003082551A1 DE 0301023 W DE0301023 W DE 0301023W WO 03082551 A1 WO03082551 A1 WO 03082551A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insert
- blade
- hub
- laminate layers
- rotor blade
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title description 3
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000009958 sewing Methods 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 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
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
-
- 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
Definitions
- the invention relates to a blade connection for the rotor blades of a wind turbine, in which the rotor blades or the hub are provided with at least one insert made of a solid material which is inserted into the root of the rotor blade or blades made of a fiber composite material and made of a plurality of laminate layers placed on top of one another or the hub is inserted and which is connected to the hub or the rotor blade of the wind turbine via bolts screwed into threaded bores in the inserts.
- the energy generated by a wind turbine is based on the conversion of the translational air movement energy into rotary energy, which takes place via rotor blades.
- the rotor blades of the wind turbine are connected to a rotor hub at their root end, either directly or via a blade bearing arranged between the rotor blade and the rotor hub.
- the rotor hub and rotor blades together form the rotor.
- the invention has for its object to provide a blade connection that allows transmission of high tensile and compressive forces.
- this object is achieved in that the at least one insert is conical in cross section, the peripheral surface of the at least one insert with a A plurality of elevations and / or recesses is provided, the laminate layers extending parallel to the insert are formed in the region of the insert with a profile complementary to the profile of the at least one insert and the laminate layers are sewn together in the region of the insert perpendicular to their extension.
- the insert can be designed in the form of a ring, but it is also possible to provide two half-ring-shaped inserts or a plurality of ring-segment-shaped inserts designed as ring-part-shaped with radial side walls
- the method according to the invention for producing the blade connection of a wind power installation is characterized by sewing the still impregnated, superimposed fiber fabrics in the area of the at least one insert perpendicular to their extension, inserting the at least one insert into the space left free by the sewn fiber fabrics and Infuse or inject a resin into the scrim to form the laminate layers.
- FIG 1 shows an insert in cross section, this on one side showing the structure of the sewn laminate layers (not shown on the other side),
- Fig. 2 shows a first detailed view from Fig. 1 and
- FIG. 3 shows a second detailed illustration from FIG. 1.
- the basic structure of the insert 1, which is preferably metallic, is conical. Its peripheral surface is provided with a plurality of elevations and recesses 2.
- the insert 1 is embedded in a laminate structure 3 provided from a fiber plastic composite.
- This laminate structure is provided with different seams in the area of the insert 1, namely with an assembly and positioning seam 4, which allows improved force guidance in the laminate structure 3.
- An ILS seam increases the interlaminar shear strength of the laminate layers.
- a final assembly seam 6 serves to protect against Delaminations of the fiber plastic composite in the area of the internal thread 7, which is introduced in the center of the insert 1.
- An additionally introduced fiber reinforcement material 8 forms the positive connection with the elevations and recesses 2 in the laminate structure.
- the insert 1 can be designed as a full ring with an inwardly tapering cross-section, but it is also possible to make it semi-ring-shaped or to provide a plurality of ring segment-shaped inserts.
- a third possibility is to provide a large number of individual inserts which are inserted into the preformed profile of the preform of the rotor blade or the hub and then produce the positive connection by injecting or infusing the resin.
- the conical design of the inserts makes it easier to insert them into the non-impregnated but already sewn fiber fabrics, and on the other hand it prevents force jumps between the insert and the laminate.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20320626U DE20320626U1 (en) | 2002-03-28 | 2003-03-27 | Blade connection for the rotor blades of a wind energy plant |
AU2003229497A AU2003229497A1 (en) | 2002-03-28 | 2003-03-27 | Blade connection for the rotor blades of a wind-energy turbine and a method for the production thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10214340.4 | 2002-03-28 | ||
DE10214340A DE10214340C1 (en) | 2002-03-28 | 2002-03-28 | Blade connection for the rotor blades of a wind turbine and method for its production |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003082551A1 true WO2003082551A1 (en) | 2003-10-09 |
Family
ID=28458491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/001023 WO2003082551A1 (en) | 2002-03-28 | 2003-03-27 | Blade connection for the rotor blades of a wind-energy turbine and a method for the production thereof |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003229497A1 (en) |
DE (2) | DE10214340C1 (en) |
WO (1) | WO2003082551A1 (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2863321A1 (en) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Wind generator`s blade for producing electricity, has at one of its ends cylindrical root to be fixed with hub of wind generator by screwing units cooperating with threaded bores carried by root |
FR2863318A1 (en) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Wind generator for power plant, has offset unit offsetting leading edge such that main axis extended between center of root base of blades and opposite ends of blades does not pass through rotational axis of hub |
WO2006070171A1 (en) * | 2004-12-29 | 2006-07-06 | 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 |
EP2078851A1 (en) | 2008-01-14 | 2009-07-15 | Lm Glasfiber A/S | Wind turbine blade and hub assembly |
GB2465167A (en) * | 2008-11-07 | 2010-05-12 | Vestas Wind Sys As | A turbine blade having mounting inserts of different lengths |
US8066490B2 (en) | 2009-12-21 | 2011-11-29 | General Electric Company | Wind turbine rotor blade |
US8133029B2 (en) | 2006-05-11 | 2012-03-13 | Repower Systems Ag | Rotor blade attachment |
US20130285284A1 (en) * | 2011-01-21 | 2013-10-31 | Hexcel Corporation | Module for holding at least one bushing |
CN103552256A (en) * | 2013-10-25 | 2014-02-05 | 中航复合材料有限责任公司 | Autoclave integrated-forming method for composite double-surface-ribbed wallboard |
DE102012111219A1 (en) | 2012-11-21 | 2014-05-22 | Spitzner Engineers GmbH | Wind turbine component |
WO2015130162A1 (en) | 2014-02-25 | 2015-09-03 | Viventus Holding B.V. | Bushing intended for connecting a blade root of a wind turbine blade directly or indirectly to a hub of a turbine |
US9464622B2 (en) | 2013-05-31 | 2016-10-11 | General Electric Company | Rotor blade assembly having a stiffening root insert |
US9745956B2 (en) | 2014-12-10 | 2017-08-29 | General Electric Company | Spar cap for a wind turbine rotor blade |
RU2641927C2 (en) * | 2012-12-05 | 2018-01-23 | Снекма | Method for production of turbomachnine blade tang made of composite and blade root made by method |
US9897065B2 (en) | 2015-06-29 | 2018-02-20 | General Electric Company | Modular wind turbine rotor blades and methods of assembling same |
US9957953B2 (en) | 2014-06-05 | 2018-05-01 | Siemens Aktiengesellschaft | Root bushing for a blade root of a wind turbine rotor blade, a blade root, a wind turbine rotor blade and a wind turbine |
US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
US10072632B2 (en) | 2015-06-30 | 2018-09-11 | General Electric Company | Spar cap for a wind turbine rotor blade formed from pre-cured laminate plates of varying thicknesses |
US10077758B2 (en) | 2015-06-30 | 2018-09-18 | General Electric Company | Corrugated pre-cured laminate plates for use within wind turbine rotor blades |
US10113532B2 (en) | 2015-10-23 | 2018-10-30 | General Electric Company | Pre-cured composites for rotor blade components |
US10190571B2 (en) | 2015-07-01 | 2019-01-29 | General Electric Company | Ring insert for a wind turbine rotor blade |
US10337490B2 (en) | 2015-06-29 | 2019-07-02 | General Electric Company | Structural component for a modular rotor blade |
US10422316B2 (en) | 2016-08-30 | 2019-09-24 | General Electric Company | Pre-cured rotor blade components having areas of variable stiffness |
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 |
US10677216B2 (en) | 2017-10-24 | 2020-06-09 | General Electric Company | Wind turbine rotor blade components formed using pultruded rods |
GB2583540A (en) * | 2019-05-03 | 2020-11-04 | Lentus Composites Ltd | Connector |
CN112238621A (en) * | 2020-09-18 | 2021-01-19 | 常州市新创智能科技有限公司 | Combined wind power blade root prefabricated part |
EP3788256B1 (en) | 2018-04-30 | 2022-12-07 | Vestas Wind Systems A/S | A rotor for a wind turbine with a pitch bearing unit |
US11530679B2 (en) | 2017-12-08 | 2022-12-20 | Vestas Wind Systems A/S | Insert for a wind turbine blade root |
US11738530B2 (en) | 2018-03-22 | 2023-08-29 | General Electric Company | Methods for manufacturing wind turbine rotor blade components |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2265760B1 (en) * | 2005-03-31 | 2008-01-16 | GAMESA INNOVATION & TECHNOLOGY, S.L. | SHOVEL FOR WIND GENERATORS. |
DE102006014742B4 (en) * | 2006-03-30 | 2008-01-24 | Nordex Energy Gmbh | Rotor blade for wind turbines |
DE102007025556B4 (en) * | 2007-05-31 | 2010-06-17 | Eurocopter Deutschland Gmbh | Process for the production of components from fiber reinforced plastics |
ITTO20070666A1 (en) * | 2007-09-24 | 2009-03-25 | Blue H Intellectual Properties | OFFSHORE WIND POWER CONVERSION SYSTEM FOR DEEP WATER |
GB0818467D0 (en) | 2008-10-08 | 2008-11-12 | Blade Dynamics Ltd | An insert for forming an end connection in a uni-axial composite material |
DE102010010283A1 (en) | 2010-03-04 | 2011-09-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Rotor hub in fiber composite construction for wind turbines |
DE102010017062B4 (en) * | 2010-05-21 | 2019-07-11 | Thyssenkrupp Steel Europe Ag | Rotor blade of a wind turbine |
DE102014215390B3 (en) * | 2014-08-05 | 2015-11-05 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement with a metallic connection element and a fiber composite material |
DE102014221966B4 (en) | 2014-10-28 | 2018-07-12 | Senvion Gmbh | Method for producing a rotor blade of a wind energy plant |
DE102015007977A1 (en) * | 2015-06-23 | 2016-12-29 | Senvion Gmbh | Rotor blade connection with steel laminate bonding |
US10107257B2 (en) | 2015-09-23 | 2018-10-23 | General Electric Company | Wind turbine rotor blade components formed from pultruded hybrid-resin fiber-reinforced composites |
DE102016000703B4 (en) * | 2016-01-18 | 2019-10-02 | Audi Ag | Method and device for producing a fiber-reinforced plastic composite profile with integrated load introduction elements |
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-
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- 2003-03-27 WO PCT/DE2003/001023 patent/WO2003082551A1/en not_active Application Discontinuation
- 2003-03-27 AU AU2003229497A patent/AU2003229497A1/en not_active Abandoned
- 2003-03-27 DE DE20320626U patent/DE20320626U1/en not_active Expired - Lifetime
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Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2863318A1 (en) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Wind generator for power plant, has offset unit offsetting leading edge such that main axis extended between center of root base of blades and opposite ends of blades does not pass through rotational axis of hub |
FR2863321A1 (en) * | 2003-12-09 | 2005-06-10 | Ocea Sa | Wind generator`s blade for producing electricity, has at one of its ends cylindrical root to be fixed with hub of wind generator by screwing units cooperating with threaded bores carried by root |
WO2006070171A1 (en) * | 2004-12-29 | 2006-07-06 | 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 |
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 |
US8172538B2 (en) | 2004-12-29 | 2012-05-08 | 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 |
US8133029B2 (en) | 2006-05-11 | 2012-03-13 | Repower Systems Ag | Rotor blade attachment |
US8408875B2 (en) | 2006-05-11 | 2013-04-02 | Repower Systems Se | Rotor blade attachment |
EP2078851A1 (en) | 2008-01-14 | 2009-07-15 | Lm Glasfiber A/S | Wind turbine blade and hub assembly |
WO2009089833A2 (en) | 2008-01-14 | 2009-07-23 | Lm Glasfiber A/S | Wind turbine blade and hub assembly |
GB2465167A (en) * | 2008-11-07 | 2010-05-12 | Vestas Wind Sys As | A turbine blade having mounting inserts of different lengths |
US8105040B2 (en) | 2008-11-07 | 2012-01-31 | Vestas Wind Systems A/S | Wind turbine rotor blade |
WO2010052487A3 (en) * | 2008-11-07 | 2010-10-21 | Vestas Wind Systems A/C | Wind turbine rotor blade |
WO2010052487A2 (en) * | 2008-11-07 | 2010-05-14 | Vestas Wind Systems A/C | Wind turbine rotor blade |
US8066490B2 (en) | 2009-12-21 | 2011-11-29 | General Electric Company | Wind turbine rotor blade |
US9370905B2 (en) * | 2011-01-21 | 2016-06-21 | Hexcel Holding Gmbh | Module for holding at least one bushing |
US20130285284A1 (en) * | 2011-01-21 | 2013-10-31 | Hexcel Corporation | Module for holding at least one bushing |
DE102012111219A1 (en) | 2012-11-21 | 2014-05-22 | Spitzner Engineers GmbH | Wind turbine component |
EP2735732A2 (en) | 2012-11-21 | 2014-05-28 | Spitzner Engineers GmbH | Wind energy plant component |
DE102012111219B4 (en) * | 2012-11-21 | 2016-06-16 | Spitzner Engineers GmbH | Wind turbine component |
RU2641927C2 (en) * | 2012-12-05 | 2018-01-23 | Снекма | Method for production of turbomachnine blade tang made of composite and blade root made by method |
US9464622B2 (en) | 2013-05-31 | 2016-10-11 | General Electric Company | Rotor blade assembly having a stiffening root insert |
CN103552256A (en) * | 2013-10-25 | 2014-02-05 | 中航复合材料有限责任公司 | Autoclave integrated-forming method for composite double-surface-ribbed wallboard |
WO2015130162A1 (en) | 2014-02-25 | 2015-09-03 | Viventus Holding B.V. | Bushing intended for connecting a blade root of a wind turbine blade directly or indirectly to a hub of a turbine |
US9957953B2 (en) | 2014-06-05 | 2018-05-01 | Siemens Aktiengesellschaft | Root bushing for a blade root of a wind turbine rotor blade, a blade root, a wind turbine rotor blade and a wind turbine |
US9745956B2 (en) | 2014-12-10 | 2017-08-29 | General Electric Company | Spar cap for a wind turbine rotor blade |
US9897065B2 (en) | 2015-06-29 | 2018-02-20 | General Electric Company | Modular wind turbine rotor blades and methods of assembling same |
US10337490B2 (en) | 2015-06-29 | 2019-07-02 | General Electric Company | Structural component for a modular rotor blade |
US10072632B2 (en) | 2015-06-30 | 2018-09-11 | General Electric Company | Spar cap for a wind turbine rotor blade formed from pre-cured laminate plates of varying thicknesses |
US10077758B2 (en) | 2015-06-30 | 2018-09-18 | General Electric Company | Corrugated pre-cured laminate plates for use within wind turbine rotor blades |
US10190571B2 (en) | 2015-07-01 | 2019-01-29 | General Electric Company | Ring insert for a wind turbine rotor blade |
US10060411B2 (en) | 2015-07-22 | 2018-08-28 | General Electric Company | Rotor blade root assembly for a wind turbine |
US9970304B2 (en) | 2015-07-22 | 2018-05-15 | General Electric Company | Rotor blade root assembly for a wind turbine |
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US10677216B2 (en) | 2017-10-24 | 2020-06-09 | General Electric Company | Wind turbine rotor blade components formed using pultruded rods |
US11530679B2 (en) | 2017-12-08 | 2022-12-20 | Vestas Wind Systems A/S | Insert for a wind turbine blade root |
US11738530B2 (en) | 2018-03-22 | 2023-08-29 | General Electric Company | Methods for manufacturing wind turbine rotor blade components |
EP3788256B1 (en) | 2018-04-30 | 2022-12-07 | Vestas Wind Systems A/S | A rotor for a wind turbine with a pitch bearing unit |
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Also Published As
Publication number | Publication date |
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DE10214340C1 (en) | 2003-11-27 |
AU2003229497A1 (en) | 2003-10-13 |
DE20320626U1 (en) | 2005-02-10 |
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