Patent application number | Description | Published |
20080199315 | Wind Turbine, a Hub for a Wind Turbine and Use Hereof - The invention relates to a wind turbine including at least two blade units. Each blade unit has a pitch controlled wind turbine blade and at least one pitch bearing including at least one outer ring, at least one centre ring and at least one inner ring. The wind turbine further includes a hub comprising a mount area for each of the blade units (31). The mount area comprises at least two concentric load transferring surfaces for attaching the blade unit, via the at least one pitch bearing. | 08-21-2008 |
20080206059 | Method Of Manufacturing A Wind Turbine Blade Shell Member With A Fastening Member And A Wind Turbine Blade With A Fastening Member - A method of manufacturing a wind turbine blade shell member ( | 08-28-2008 |
20080213095 | Wind Turbine Pitch Bearing, and Use Hereof - The invention relates to a wind turbine including at least two pitch controlled wind turbine blades. Each blade has pitch bearings including two or more bearing rings, and pitch controlling means for pitching the blades by means of the bearings. The blades are mounted on a hubs via the pitch bearings and the pitch bearings include separate flexibility enhancing means for controlling loads in the bearings. | 09-04-2008 |
20080237909 | Mould for Preparing Large Structures, Methods of Preparing Mould and Use of Mould | 10-02-2008 |
20090016885 | WIND TURBINE ROTOR, A ROTATION CONTROLLING MECHANISM AND A METHOD FOR CONTROLLING AT LEAST ONE BLADE OF A WIND TURBINE ROTOR - The invention relates to a wind turbine rotor comprising at least one blade and at least on pitch mechanism comprising a ring shaped motor for controlling the blade. The wind turbine rotor is characterized in that, the ring shaped motor controls the blade through gearing means of a planetary type. | 01-15-2009 |
20090022442 | Pitch Bearing For A Wind Turbine, A Wind Turbine And A Method For Servicing A Bearing - The invention relates to a pitch bearing for a wind turbine comprising a first and second axial row of bearing rolling elements, said rows being positioned in a distance of each other, and one or more radial rows of bearing elements, where said one or more rows of bearing elements are positioned outside an area defined in between said first and second axial row. The invention also relates to a wind turbine and method for servicing a bearing hereof. | 01-22-2009 |
20090035517 | METHOD FOR PREPARING PRE-FORM MATERIALS - A pre-form and a method of preparing pre-forms are provided. The pre-forms comprise a resin and at least two layers of oriented fibre tows. The pre-forms comprise fibre tows instead of the traditional prepregs to enhance rearranging of resin and/or fibres during subsequent processing as well as provide greater freedom, a price reduction and/or a reduction of waste. The pre-forms may be formed three-dimensionally to enhance coupling to further pre-forms or other structures and/or to enhance shaping of the pre-form to a final three-dimensional shape. The method of preparation of pre-forms involves providing an adhesive between layers of fibres and providing a resin in contact with at least one of the layers of fibres. The resin is preferably provided in a non-continuous layer to allow for removal of gas at least partially in a direction orthogonal to the layers of resin. Advantageously, during manufacturing, the fibres are placed with an exact start and ending location, thereby avoiding waste. The pre-forms are suitable for preparation of composite structures like for example spars for wind turbine blades. | 02-05-2009 |
20090142193 | WIND TURBINE BLADE COMPRISING ONE OR MORE OSCILLATION DAMPERS - The invention relates to a wind turbine blade comprising one or more oscillation dampers for damping oscillations or vibrations of the wind turbine blade. The first damper parts being rigidly connected to the blade or being a part of the blade. The dampers further comprise second damper parts, wherein the first damper part surfaces and the second damper part surfaces are arranged to move relatively to each other during the oscillations. Even further the dampers comprise a load transferring coupling, coupling the first damper part surfaces and the second damper part surfaces, so that the relative movement results in a oscillation-damping dissipation of kinetic energy. | 06-04-2009 |
20090242119 | CONNECTION BETWEEN COMPOSITES WITH NON-COMPATIBLE PROPERTIES AND METHOD FOR PREPARATION - A connection between composites with non-compatible properties and a method of preparing of such connections are provided. The composites comprise first and second type fibres, respectively, as well as resin. The connection comprises a transition zone between the composites having a layered structure. The transition zone may optionally comprise a transition member and the transition member may optionally be integrated with one or more of the composites. Examples of non-compatible properties where the present connection will be appreciated are great differences in stiffness, e.g. Young's modulus, or in coefficient of thermal expansion. | 10-01-2009 |
20090285693 | Wind Turbine, A Method For Servicing A Main Bearing Unit Of A Wind Turbine And Use Thereof - A wind turbine includes a nacelle and a rotor, the rotor being rotatably mounted on the nacelle by means of at least one main bearing unit. The wind turbine is characterized in that the main bearing unit includes at least one outer ring, at least one centre ring and at least one inner ring and wherein the centre ring is capable of rotation in relation to the outer ring and the inner ring or the outer ring and the inner ring are capable of rotation in relation to the centre ring. A method for servicing a main bearing unit of a wind turbine and a use hereof are also provided. | 11-19-2009 |
20090317585 | METHOD FOR PREPARING PRE-FORM MATERIALS - A pre-form and a method of preparing pre-forms are provided. The pre-forms comprise a resin and at least three layers of oriented fibre tows. The pre-forms comprise fibre tows instead of the traditional prepregs to enhance rearranging of resin and/or fibres during subsequent processing as well as provide greater freedom, a price reduction and/or a reduction of waste. The pre-forms may be formed three-dimensionally to enhance coupling to further pre-forms or other structures and/or to enhance shaping of the pre-form to a final three-dimensional shape. The method of preparation of pre-forms involves providing an adhesive between layers of fibres and providing a resin in contact with at least one of the layers of fibres. The resin is preferably provided in a non-continuous layer to allow for removal of gas at least partially in a direction orthogonal to the layers of resin. Advantageously, during manufacturing, the fibres are placed with an exact start and ending location, thereby avoiding waste. The pre-forms are suitable for preparation of composite structures like for example spars for wind turbine blades. | 12-24-2009 |
20100201128 | 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 - A wind turbine including a drive train. The drive train includes at least a rotor for transforming wind into rotation of a rotor hub, to provide a drive torque, a generator for transforming at least a part of the drive torque into electrical power, and at least one coupling for connecting a first drive train component to a second drive train component for transferring the drive torque between the components. The coupling includes a first coupling part with a first coupling area, the first coupling area being connected with a second coupling area of a second coupling part, whereby the drive torque is transferred from one of the areas to the other of the areas during operation of the coupling. | 08-12-2010 |
20100202871 | Gearbox For A Wind Turbine, A Method Of Converting Wind Energy And Use Of A Gearbox - A gearbox for a wind turbine. The gearbox includes at least one first epicyclical gear stage, at least one second gear stage, and a torque transferring shaft including a shaft part and a connection part, wherein the torque transferring shaft is adapted for connecting a first gear of the first epicyclical gear stage with a second gear of the second gear stage and wherein the torque transferring shaft is connected to the second gear stage via the connection part to form a torque-transferring connection area between the connection part and the second gear stage and wherein the outer diameter of the shaft part of the torque transferring shaft is smaller than an inner diameter of the connection area between said torque transferring shaft and said second gear stage. | 08-12-2010 |
20100215494 | Wind Turbine Rotor Blade - A wind turbine rotor blade is provided comprising a main body portion and a movable auxiliary component. The auxiliary component is mounted about a leading edge of the main body portion. The auxiliary component comprises first and second longitudinally extending edges together with an arcuate surface extending therebetween. The first edge is connected to a pressure surface of the main body portion to form a substantially continuous surface therewith. | 08-26-2010 |
20100236693 | CONNECTION BETWEEN MEMBERS - A method for preparing a more reliable connection between two members is provided. The method involves the use of a gas-removal layer which allows for gas transport in a number of overall directions in a plane of the gas-removal layer. The gas-removal layer comprises a resin and during consolidation the gas-removal layer is deformed to form a collection substantially free from entrapped gas voids. In addition, a gas-removal layer is provided as well as a mould for casting of gas-removal layers and a method for preparing such a mould. The method and the gas-removal layer provided are particularly useful for manufacturing of wind turbine blades and spars for such blades. | 09-23-2010 |
20100310380 | METHOD FOR PREPARING A PRE-FORM - The invention provides a method for preparing a pre-form comprising at least two layers of fibre tows ( | 12-09-2010 |
20110000608 | APPARATUS FOR PREPARING A PRE-FORM - The present invention provides an apparatus and a method for preparing a pre-form ( | 01-06-2011 |
20110103964 | METHOD OF MANUFACTURING A LAMINATED COMPOSITE ITEM BY A WINDING PROCESS, RELATED APPARATUS AND PRODUCT - The present invention relates to a method of manufacturing a laminated composite item ( | 05-05-2011 |
20110158788 | A SECTIONAL BLADE - The invention provides a sectional blade for a wind turbine. The blade comprises at least a first blade portion and a second blade portion extending in opposite directions from a joint. The first blade portion and the second blade portion are structurally connected by at least one spar bridge extending into both blade portions to facilitate joining of said blade portions. | 06-30-2011 |
20110209795 | METHOD AND AN APPARATUS FOR PRODUCING A MULTIAXIAL FABRIC - A method and an apparatus for producing a multiaxial fabric are disclosed. According to the method at least one yarn is arranged helically about at least two conveyor portions, thereby providing a weft having a first weft portion having yarns arranged at an angle, θ, with respect to the conveying direction of the conveyor portions, and a second weft portion having yarns arranged at an angle, −θ, with respect to the conveying direction of the conveyor portions. Centre sections of the first weft portion and the second weft portion are then fixated to each other, e.g. by stitching and/or by applying a resin to the centre sections. Side portions of the weft are then cut, thereby separating the first weft portion from the second weft portion. Finally, rim sections of the first weft portion are fixated to rim sections of the second weft portion, e.g. by stitching and/or by applying a resin to the rim sections. The combination of helically winding the yarn about the conveyor portions, fixating the centre sections to each other, cutting the side section and fixating the rim sections to each other ensures that it is not necessary to cut away material, and the material used for making the well is therefore utilised to the greatest possible extent. | 09-01-2011 |
20110236186 | WIND TURBINE AND A PITCH BEARING FOR A WIND TURBINE - A wind turbine includes a rotor having at least one wind turbine blade connected to a rotor hub through at least one blade pitch bearing. The pitch bearing includes at least one outer ring, at least one centre ring and at least one inner ring. The pitch bearing has a first rolling element arrangement between the outer ring and the centre ring, and a second rolling element arrangement between the centre ring and the inner ring, wherein at least one of the first and the second rolling element arrangements includes at least two rows of rolling elements. The at least two rows are at different axial positions in relation to a rotational axis. The play in the first row of roller elements is greater than the play in the second row of roller elements. A pitch bearing for a wind turbine is also disclosed. | 09-29-2011 |
20120009070 | METHOD OF MANUFACTURING A WIND TURBINE BLADE SHELL MEMBER - A method for preparing a wind turbine blade shell member comprising a plurality of elements of cured fibre-reinforced sheet material is provided. A plurality of elements of cured fibre-reinforced sheet material is provided in a mould, a resin is introduced between the elements of cured fibre-reinforced sheet material and the elements are bonded to adjacent elements by curing the resin. The method is particularly suitable for preparing wind turbine blade shell members due to the complex three-dimensional shape of the airfoils, which may be resembled by the relatively flexible cured fibre-reinforced sheet material. | 01-12-2012 |
20120039720 | METHOD OF MANUFACTURING A WIND TURBINE BLADE BY EMBEDDING A LAYER OF PRE-CURED FIBRE REINFORCED RESIN - The present invention relates to a method of manufacturing a wind turbine blade or a part of a wind turbine blade. The method comprises arranging at least one layer of uncured resin pre-impregnated fibres, called prepregs, and at least one layer of cured fibre reinforced resin in an at least partly overlaying relationship, and curing the resin of the at least one layer comprising uncured resin. The at least one layer of cured fibre reinforced resin is assembled with at least one layer of uncured resin-preimpregnated fibres prior to being placed on a moulding surface. The method may e.g. be used to manufacture a wind turbine blade shell member or a wind turbine blade spar member. The invention further relates to a wind turbine blade shell member or a wind turbine blade spar member manufactured by such a method. The invention further relates to a pre-form for use in a wind turbine blade, the pre-form comprising at least one layer of uncured resin pre-impregnated fibres and at least one layer of cured fibre reinforced resin in an at least partly overlaying relationship. | 02-16-2012 |
20120045343 | ROTOR BLADE FOR A WIND TURBINE AND A METHOD FOR MAKING THE SAME - The invention relates to a rotor blade for a wind turbine. The rotor blade comprises a shell and a spar forming a longitudinally extending hollow structure within the shell and comprising: a leading web, a trailing web, and one or more additional webs. Each additional web defines an intermediate portion between a hub end and a tip end. The intermediate portion of each additional web is spaced apart from the leading and trailing webs and at least one of the tip and the hub ends is connected to or integral with the leading or the trailing web. The invention further relates to a wind turbine comprising the rotor blade, and a method for manufacturing the rotor blade. | 02-23-2012 |
20120148410 | MOUNTING ARRANGEMENT FOR PITCH GEAR - A system for a wind turbine includes a pitch system having a blade pitch bearing and a wind turbine hub, the pitch bearing being attached to the wind turbine hub and arranged to be attachable to a wind turbine rotor blade. A pitch gear, having a gear surface for engaging with an actuator, such as a pinion, is releasably coupled to the pitch system so that the pitch gear, under the action of the actuator, causes relative rotation between the hub and the relevant part of the bearing. Releasably coupling the gear surface to the pitch system can allow easy replacement of the gear without requiring the removal of large components such as the bearing. | 06-14-2012 |
20120148411 | PITCH GEAR - A system for a wind turbine rotor blade, the system includes a pitch system that has a pitch bearing and a wind turbine hub, the bearing being attached to the hub and being attachable to a wind turbine rotor blade, and also including a pitch gear coupled to the pitch system. The pitch gear includes a first discrete segment and one or more other discrete segments, each segment having a plurality of teeth for engaging with and actuator such as a pinion. At least the first segment is held in place by releasable fasteners and extends along the pitch gear by a predetermined amount. The predetermined amount that the first segment extends along the pitch gear is determined based on anticipated wear of the pitch gear. | 06-14-2012 |
20120157260 | GEARBOX FOR A WIND TURBINE, A METHOD OF CONVERTING WIND ENERGY AND USE OF A GEARBOX - A gearbox for a wind turbine. The gearbox includes at least one first epicyclical gear stage, at least one second gear stage, and a torque transferring shaft including a shaft part and a connection part, wherein the torque transferring shaft is adapted for connecting a first gear of the first epicyclical gear stage with a second gear of the second gear stage and wherein the torque transferring shaft is connected to the second gear stage via the connection part to form a torque-transferring connection area between the connection part and the second gear stage and wherein the outer diameter of the shaft part of the torque transferring shaft is smaller than an inner diameter of the connection area between said torque transferring shaft and said second gear stage. | 06-21-2012 |
20120246931 | METHODS OF MANUFACTURING WIND TURBINE BLADES - An elongate web is attached to the root end of a spar of a wind turbine rotor blade to provide additional support along the width of the blade. The root end is formed by a winding operation, and a recess is then cut into the surface of the spar. The recess is defined by a relatively large first, cylindrical surface, which is coaxial with the longitudinal axis of the root end, and a relatively small second, conical surface. A tapered end of the elongate web is attached within the recess of the root end using a layer of suitable adhesive and an array of pins. Resilient spacer elements are arranged within the recess so as to surround the pins. The large area of the cylindrical surface causes the tensile and compressive stresses which arise along the elongate web in use to be transmitted to the spar as shear stresses. | 10-04-2012 |
20120301293 | ANTI-OSCILLATION APPARATUS AND TECHNIQUE FOR SECURING WIND TURBINE BLADES AGAINST OSCILLATIONS - The invention relates to a method of operating a wind turbine ( | 11-29-2012 |
20130177444 | HUB FOR A WIND TURBINE AND A METHOD FOR FABRICATING THE HUB | 07-11-2013 |
20130236324 | WIND TURBINE BLADE STRUCTURES, LIFTING ASSEMBLIES AND METHODS OF BLADE HANDLING - A wind turbine blade | 09-12-2013 |
20140193255 | Apparatus for Manipulating a Wind Turbine Blade and Method of Blade Handling - Apparatus for manipulating a wind turbine blade and method of blade handling An apparatus for manipulating a wind turbine blade having fixed lifting points ( | 07-10-2014 |
20140341738 | WIND TURBINE BLADE AND METHOD OF MANUFACTURING A WIND TURBINE BLADE - A wind turbine blade comprising a lightning protection system is provided. The lightning protection system comprises a lightning conductor located along a longitudinal portion of the wind turbine blade and is coupled to an electrical ground. A lightning receptor module is arranged on an external surface of the wind turbine blade and electrically coupled to the lightning conductor. An elongate receptor band is installed on the external surface of the wind turbine blade, over the lightning receptor module, and the receptor band is arranged to receive a stroke of lightning and transfer electrical current from the lightning stroke to the lightning conductor through the lightning receptor module. Further, the elongate receptor band comprises a crease in a longitudinal cross-sectional profile of the elongate receptor band. A method of installing a lightning protection system on a wind turbine blade is further provided. | 11-20-2014 |