WO2003031811A2 - Modular wind turbine gearbox - Google Patents

Modular wind turbine gearbox Download PDF

Info

Publication number
WO2003031811A2
WO2003031811A2 PCT/IB2002/004384 IB0204384W WO03031811A2 WO 2003031811 A2 WO2003031811 A2 WO 2003031811A2 IB 0204384 W IB0204384 W IB 0204384W WO 03031811 A2 WO03031811 A2 WO 03031811A2
Authority
WO
WIPO (PCT)
Prior art keywords
gear unit
nacelle
rotor hub
fact
module
Prior art date
Application number
PCT/IB2002/004384
Other languages
French (fr)
Other versions
WO2003031811A3 (en
Inventor
Peter Flamang
Original Assignee
Hansen Transmissions International Nv
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 Hansen Transmissions International Nv filed Critical Hansen Transmissions International Nv
Priority to AU2002350988A priority Critical patent/AU2002350988A1/en
Publication of WO2003031811A2 publication Critical patent/WO2003031811A2/en
Publication of WO2003031811A3 publication Critical patent/WO2003031811A3/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
    • F03D15/00—Transmission of mechanical power
    • 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
    • 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
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/916—Mounting on supporting structures or systems on a stationary structure with provision for hoisting onto the structure
    • 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
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • 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

Definitions

  • the present invention relates to the drive train of a wind turbine - typically consisting of as shown in ure 1 rotor blades (100), a rotor shaft (110) supported by bearings (120), a gear unit (130), a generator (140) and couplings (150).
  • the drive train of a wind turbine is characterised by its situation high up in the nacelle (160) at the top of a 50 or 100 metre high tower. This makes the drive train difficult to reach or disassemble from the tower should this need occur and typically requires expensive crane equipment. Wind turbines are however often situated at remote locations that may be hard to reach with large cranes. Furthermore, the expanding off-shore market for wind turbines creates new challenges to handle this problem, as the water surrounding the turbine and the climate conditions at sea further complicate the access to the turbine nacelle.
  • the problem addressed by the present invention is how to design an integrated drive arrangement that in the first place minimizes the need to disassemble it from the nacelle when a failure occurs by allowing service in the nacelle, and minimizes time and effort required to disassemble the gear unit from the nacelle should this be necessary.
  • the present invention provides a solution to the requirements mentioned above by means of an integrated gear unit design of a modular nature, and wherein either the gear unit as a whole or a number of the modules can be disengaged from the drive train assembly.
  • All modules 6, 8, 9, 10, 11 and 12 are connected to each other in seriesand finally to the rotor hub 1 and nacelle 2 typically by means of bolts, pins and/or retaining rings as appropriate.
  • the geometry of the gear unit has been designed to allow axial disengagement from the nacelle and the rotor hub in the direction away from the rotor hub.
  • Figure 2 also shows several modules that can disengage in the axial direction away from the rotor hub 1.
  • the modules can be disassembled one by one or in combinations. Because of the axial disassembly feature, equipment in the nature of a guiding rail or rod through the energy bore 14 (typically provided for supply of electrical energy to the rotor region and / or control of rotor blade pitch) could also be used.
  • the high speed shaft end 13 is typically connected to the generator by means of a seperate coupling.
  • the generator (see Figure 1 , not shown in Figure 2) may be either foot mounted on the nacelle or flange mounted to the gear unit. In the latter case, the complete drive train consisting of gear unit with integrated rotor bearing arrangement, coupling and generator can be axially disengaged as a whole from the nacelle.

Abstract

A gear unit for use in a wind turbine drive arrangement, the gear unit having an integrated rotor bearing arrangement and interfaces with the nacelle and rotor hub of the wind turbine, and the geometry of the gear unit and its interfaces with the nacelle and rotor hub being arranged to allow disassembly of the completely assembled gear unit from the nacelle and rotor hub at least primarily by axial movement in a direction away from the rotor hub.

Description

MODULAR WIND TURBINE DRIVE ARRANGEMENT
The present invention relates to the drive train of a wind turbine - typically consisting of as shown in ure 1 rotor blades (100), a rotor shaft (110) supported by bearings (120), a gear unit (130), a generator (140) and couplings (150).
The drive train of a wind turbine is characterised by its situation high up in the nacelle (160) at the top of a 50 or 100 metre high tower. This makes the drive train difficult to reach or disassemble from the tower should this need occur and typically requires expensive crane equipment. Wind turbines are however often situated at remote locations that may be hard to reach with large cranes. Furthermore, the expanding off-shore market for wind turbines creates new challenges to handle this problem, as the water surrounding the turbine and the climate conditions at sea further complicate the access to the turbine nacelle.
When the need occurs to replace drive components in the nacelle, it is important that this can be done in the shortest time possible, not only because of general cost reasons, but also as the access time may be limited due to weather conditions that are sometimes hard to predict.
The above would typically call for drive train assemblies with clear interfaces between the different components and low functional integration, so as to allow removal of one component without the need to remove the others.
At the same time, wind turbine sizes have developed from rotor diameters smaller than 30 metre in the early eighties to rotor diameters larger than 100 metre under development today, and with powers that have developed from 30 kW to several MegaWatts. This development is however characterised by the fact that the forces acting on the mechanical components of the turbine, for instance on the gear unit, grow more than proportional with the size and power of the turbine. Mere extrapolation of existing designs therefore leads to bulky, high weight drive trains.
From this evolution, the urge is created to integrate drive components so as to reduce size and weight of the overall drive train and nacelle. Some new concepts include for instance eliminating the rotor shaft and its bearing arrangement, replacing it with a large diameter bearing arrangement that may or may not be integrated with the gear unit.
Combining the above requirements, the problem addressed by the present invention is how to design an integrated drive arrangement that in the first place minimizes the need to disassemble it from the nacelle when a failure occurs by allowing service in the nacelle, and minimizes time and effort required to disassemble the gear unit from the nacelle should this be necessary.
The present invention provides a solution to the requirements mentioned above by means of an integrated gear unit design of a modular nature, and wherein either the gear unit as a whole or a number of the modules can be disengaged from the drive train assembly.
Further aspects of the invention will become apparent from the following description, given by way of example only, of an embodiment of the invention given in conjuction with Figure 2 which shows a sectional view of a drive arrangement of the present invention.
All modules 6, 8, 9, 10, 11 and 12 are connected to each other in seriesand finally to the rotor hub 1 and nacelle 2 typically by means of bolts, pins and/or retaining rings as appropriate.
As can be seen from Figure 2, the geometry of the gear unit has been designed to allow axial disengagement from the nacelle and the rotor hub in the direction away from the rotor hub.
Figure 2 also shows several modules that can disengage in the axial direction away from the rotor hub 1. Depending on the available equipment for instance the capacity of an on-board crane in the nacelle, the modules can be disassembled one by one or in combinations. Because of the axial disassembly feature, equipment in the nature of a guiding rail or rod through the energy bore 14 (typically provided for supply of electrical energy to the rotor region and / or control of rotor blade pitch) could also be used.
To remove the last module 8, consisting of the ring gear 4, main bearing arrangement 5, main part of the planet carrier 3 and main connecting flange 7, the wind turbine arrangement in Figure 2 is provided with an engageable static holding connection 15 between nacelle 2 and rotor hub 1.
As can be seen from Figure 2, removing each consecutive module or combination of modules gives also service access to the next module(s), allowing in-nacelle replacement of the module or parts thereof and facilitating possibilities for close inspection and cleaning should this be required. Special attention should be paid to the fact that in the embodiment of Figure 2 of the present invention, the planet carrier design 3, 6 of the low speed planetary cell allows the planets and their bearings to be disassembled and replaced without the need to disassemble the main part of the low speed planet carrier 3 from the rotor bearing arrangement 5, the rotor hub 1 or the nacelle 2. Connecting the engageable connection between rotor hub 1 and nacelle 2 may or may not be needed for -this action.
The high speed shaft end 13 is typically connected to the generator by means of a seperate coupling. The generator (see Figure 1 , not shown in Figure 2) may be either foot mounted on the nacelle or flange mounted to the gear unit. In the latter case, the complete drive train consisting of gear unit with integrated rotor bearing arrangement, coupling and generator can be axially disengaged as a whole from the nacelle.

Claims

1. Gear unit with integrated rotor bearing arrangement for a wind turbine drive arrangement characterized by the fact that the geometry of the said gear unit and its interfaces with nacelle (2) and rotor hub (1 ) allow to disassemble the completely assembled gear unit from the nacelle and the rotor hub in a (primarily) axial movement in the direction away from the rotor hub.
2. Gear unit with integrated rotor bearing arrangement for a wind turbine drive arrangement provided with an engageable static holding connection (15) between nacelle and rotor hub, characterized by the fact that the geometry of the said gear unit and its interfaces with nacelle (2) and rotor hub (1) allow to disassemble the completely assembled gear unit from the nacelle and the rotor hub in a (primarily) axial movement in the direction away from the rotor hub.
3. Gear unit according to claim 1 or claim 2, characterized by the fact that the gear unit consists of a number of modules that can be disassembled either one by one or in various combinations from the nacelle and the rotor hub
4. Gear unit according to any one of claims 1 to 3, characterized by the fact that each of the said modules has a weight lower than half of the overall gear unit weight
5. Gear unit according to any one of claims 1 to 4, characterized by the fact that the said modules can be disassembled by means of an on-board crane in the nacelle.
6. Gear unit according to any one of claims 1 to 5, characterized by the fact that the said modules can be disassembled by substantially axial movement in the direction away from the rotor hub
7. Gear unit according to any of the preceding claims characterized by the fact that the planet carrier design of the low speed planetary cell allows the planets and their bearings (module (6)) to be disassembled and replaced without the need to disassemble the main part of the low speed planet carrier (3) from the integrated rotor bearing arrangement (5), the rotor hub (1 ) or the nacelle (2).
8. Gear unit according to any of the above claims characterized by the fact that the gear unit can be split in a high speed module (12) consisting of a gear stage with its bearings and casing assembly, an intermediate sun pinion (11 ), a module (9) containing the intermediate stage ring gear and casing assembly, a module (10) containing the intermediate planet carrier, planets, planet bearing assembly and the low speed sun pinion, a module (6) containing low speed planets, planet bearings and the removable part of the low speed planet carrier, and a module (8) containing the main flange (7) connecting the gear unit to the nacelle, the low speed stage ring gear (4) and the main part of the planet carrier (3) of the low speed stage.
9. Gear unit according to any of the above claims characterized by the fact that the generator that is connected to the high speed shaft end (17) is flange-mounted to the gear unit thus can be considered as an additional module of the assembly with the same possibilities as indicated in the above claims.
PCT/IB2002/004384 2001-10-05 2002-10-04 Modular wind turbine gearbox WO2003031811A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002350988A AU2002350988A1 (en) 2001-10-05 2002-10-04 Modular wind turbine gearbox

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0123972.2 2001-10-05
GB0123972A GB2381047B (en) 2001-10-05 2001-10-05 Modular Wind Turbine Drive Arrangement

Publications (2)

Publication Number Publication Date
WO2003031811A2 true WO2003031811A2 (en) 2003-04-17
WO2003031811A3 WO2003031811A3 (en) 2003-08-28

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Country Status (3)

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AU (1) AU2002350988A1 (en)
GB (1) GB2381047B (en)
WO (1) WO2003031811A2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004046582A2 (en) * 2002-11-19 2004-06-03 Hansen Transmissions International Nv Wind turbine gear unit with integrated rotor bearing
WO2006134189A1 (en) 2005-06-13 2006-12-21 Gamesa Innovation And Technology, S.L. Wind turbine
US7282808B2 (en) 2003-09-30 2007-10-16 Mitsubishi Heavy Industries, Ltd. Power generating wind turbine
WO2007140787A1 (en) * 2006-06-09 2007-12-13 Vestas Wind Systems A/S A wind turbine comprising a detuner
EP1867871A2 (en) 2006-06-14 2007-12-19 NORDEX ENERGY GmbH Wind generator with a rotor
EP1619386A3 (en) * 2004-07-23 2008-04-16 LOHMANN & STOLTERFOHT GMBH Transmission for high power wind generation installation
WO2009052826A2 (en) * 2007-10-23 2009-04-30 Vestas Wind Systems A/S A gearbox for a wind turbine, a method of converting wind energy and use of a gearbox
EP2067990A2 (en) * 2007-12-06 2009-06-10 Hansen Transmissions International Nv Wind turbine drive
ES2408429R1 (en) * 2011-12-16 2013-10-14 Gamesa Innovation & Tech Sl A MODULAR MULTIPLIER UNIT FOR A WINDER
EP3351830B1 (en) 2017-01-23 2019-07-31 Flender GmbH Planetary transmission with improved planet carrier bearing
WO2022073571A1 (en) * 2020-10-06 2022-04-14 Vestas Wind Systems A/S Wind turbine power transmission system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI117252B (en) * 2004-07-15 2006-08-15 Moventas Oy Arrangement in planetary gear
DE102004060770B3 (en) * 2004-12-17 2006-07-13 Nordex Energy Gmbh Wind energy plant with holding device for a rotor shaft
US7391128B2 (en) * 2004-12-30 2008-06-24 Rozlev Corp., Llc Wind generator system using attractive magnetic forces to reduce the load on the bearings
GB2466209A (en) * 2008-12-11 2010-06-16 Vestas Wind Sys As Wind turbine wake expansion device
TWI489040B (en) * 2011-03-11 2015-06-21 Ind Tech Res Inst Power transmission and wind turbine having the same
GB201104455D0 (en) * 2011-03-16 2011-04-27 Romax Technology Ltd Cover and sealing arrangements for a wind turbine gearbox

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US4527072A (en) * 1982-03-26 1985-07-02 Fdo Technische Adviseurs B.V. Divisible cabin for a windmill
WO1996011338A1 (en) * 1994-10-07 1996-04-18 Gerald Hehenberger Planetary gear for wind turbines
EP0811764A1 (en) * 1996-06-03 1997-12-10 aerodyn Energiesysteme GmbH Gearbox-generator combination for wind turbine
AT403310B (en) * 1994-11-23 1998-01-26 Hehenberger Gerald Dipl Ing Epicyclic gear, in particular for wind power systems
EP1101936A2 (en) * 1999-11-17 2001-05-23 Bonus Energy A/S Method for mounting main components in a nacelle of a windturbine
EP1243791A2 (en) * 2001-03-23 2002-09-25 Enron Wind GmbH Power transmission for a wind turbine
WO2002079644A1 (en) * 2001-04-02 2002-10-10 Vestas Wind Systems A/S Wind turbine comprising a planetary gear

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GB9012925D0 (en) * 1990-06-09 1990-08-01 Hicks Transmissions Ltd R J Improvements relating to epicyclic gear trains
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DE19916454A1 (en) * 1999-04-12 2000-10-19 Flender A F & Co Gearbox for a wind turbine
DE10031472C1 (en) * 2000-06-28 2002-04-18 Tacke Windenergie Gmbh Device for locking a shaft of a wind turbine driven by a rotor

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Publication number Priority date Publication date Assignee Title
US4527072A (en) * 1982-03-26 1985-07-02 Fdo Technische Adviseurs B.V. Divisible cabin for a windmill
WO1996011338A1 (en) * 1994-10-07 1996-04-18 Gerald Hehenberger Planetary gear for wind turbines
AT403310B (en) * 1994-11-23 1998-01-26 Hehenberger Gerald Dipl Ing Epicyclic gear, in particular for wind power systems
EP0811764A1 (en) * 1996-06-03 1997-12-10 aerodyn Energiesysteme GmbH Gearbox-generator combination for wind turbine
EP1101936A2 (en) * 1999-11-17 2001-05-23 Bonus Energy A/S Method for mounting main components in a nacelle of a windturbine
EP1243791A2 (en) * 2001-03-23 2002-09-25 Enron Wind GmbH Power transmission for a wind turbine
WO2002079644A1 (en) * 2001-04-02 2002-10-10 Vestas Wind Systems A/S Wind turbine comprising a planetary gear

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004046582A3 (en) * 2002-11-19 2004-07-22 Hansen Transmissions Int Wind turbine gear unit with integrated rotor bearing
US7255537B2 (en) 2002-11-19 2007-08-14 Hansen Transmissions International, N.V. Wind turbine gear unit with integrated rotor bearing
WO2004046582A2 (en) * 2002-11-19 2004-06-03 Hansen Transmissions International Nv Wind turbine gear unit with integrated rotor bearing
US7282808B2 (en) 2003-09-30 2007-10-16 Mitsubishi Heavy Industries, Ltd. Power generating wind turbine
EP1619386A3 (en) * 2004-07-23 2008-04-16 LOHMANN & STOLTERFOHT GMBH Transmission for high power wind generation installation
WO2006134189A1 (en) 2005-06-13 2006-12-21 Gamesa Innovation And Technology, S.L. Wind turbine
AU2007256565B2 (en) * 2006-06-09 2011-03-03 Vestas Wind Systems A/S A wind turbine comprising a detuner
WO2007140787A1 (en) * 2006-06-09 2007-12-13 Vestas Wind Systems A/S A wind turbine comprising a detuner
US8143739B2 (en) 2006-06-09 2012-03-27 Vestas Wind Systems A/S Wind turbine comprising a detuner
EP2372152A1 (en) * 2006-06-09 2011-10-05 Vestas Wind Systems A/S A wind turbine comprising a detuner
EP1867871A2 (en) 2006-06-14 2007-12-19 NORDEX ENERGY GmbH Wind generator with a rotor
US8172535B2 (en) 2006-06-14 2012-05-08 Nordex Energy Gmbh Wind energy plant with a rotor
WO2009052826A2 (en) * 2007-10-23 2009-04-30 Vestas Wind Systems A/S A gearbox for a wind turbine, a method of converting wind energy and use of a gearbox
WO2009052826A3 (en) * 2007-10-23 2009-08-13 Vestas Wind Sys As A gearbox for a wind turbine, a method of converting wind energy and use of a gearbox
US8393994B2 (en) 2007-10-23 2013-03-12 Vestas Wind Systems A/S Gearbox for a wind turbine, a method of converting wind energy and use of a gearbox
US8137234B2 (en) 2007-10-23 2012-03-20 Vestas Wind Systems A/S Gearbox for a wind turbine, a method of converting wind energy and use of a gearbox
EP2067990A2 (en) * 2007-12-06 2009-06-10 Hansen Transmissions International Nv Wind turbine drive
BE1017866A3 (en) * 2007-12-06 2009-09-01 Hansen Transmissions Int WIND TURBINE DRIVE.
US8192322B2 (en) 2007-12-06 2012-06-05 Zf Wind Power Antwerpen N.V. Wind turbine drive
EP2067990A3 (en) * 2007-12-06 2011-05-11 Hansen Transmissions International Nv Wind turbine drive
AU2008252039B2 (en) * 2007-12-06 2013-05-30 Hansen Transmissions International, Naamloze Vennootschap Wind turbine drive
ES2408429R1 (en) * 2011-12-16 2013-10-14 Gamesa Innovation & Tech Sl A MODULAR MULTIPLIER UNIT FOR A WINDER
EP3351830B1 (en) 2017-01-23 2019-07-31 Flender GmbH Planetary transmission with improved planet carrier bearing
EP3351830B2 (en) † 2017-01-23 2023-03-15 Flender GmbH Planetary transmission with improved planet carrier bearing
WO2022073571A1 (en) * 2020-10-06 2022-04-14 Vestas Wind Systems A/S Wind turbine power transmission system

Also Published As

Publication number Publication date
WO2003031811A3 (en) 2003-08-28
GB2381047A (en) 2003-04-23
GB0123972D0 (en) 2001-11-28
AU2002350988A1 (en) 2003-04-22
GB2381047B (en) 2005-05-25

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