Entries |
Document | Title | Date |
20080240925 | SEPARABLE BLADE FOR WIND TURBINE - To provide a light and economical separable blade for a wind turbine that is also equipped with a lightning rod function. A separable blade for a wind turbine wherein the blade as a whole is assembled by connecting two electrically non-conductive part blades | 10-02-2008 |
20090022599 | METHODS AND APPARATUS FOR ASSEMBLING A STEAM TURBINE BUCKET - A method of assembling a turbine bucket is provided. The bucket includes a dovetail portion, an airfoil portion, and a root that extends between the airfoil portion and the dovetail portion. The turbine bucket includes a pressure side and a suction side that are connected together at a leading edge and a trailing edge. The method includes forming at least one pocket within the turbine bucket, such that the pocket is formed within the pressure side. The method also includes forming at least one pin within the at least one pocket. | 01-22-2009 |
20090074586 | DAMPING DEVICE FOR COMPOSITE BLADE - The present invention relates to a blade made of composite, comprising a vane formed of woven filaments impregnated with a thermosetting resin with a protective element in the region of the leading edge of the vane comprising a part in the form of a rigid strip, said strip being secured to the vane. The blade is characterized in that at least one layer of a viscoelastic material is at least partially interposed between said rigid strip and the vane so as to form, with the protective element, a means of damping the vibrations of the vane. | 03-19-2009 |
20090116966 | WIND TURBINE BLADES AND METHODS FOR FORMING SAME - A method of forming a wind turbine blade includes forming a fiber-reinforced resin body. The fiber-reinforced resin body includes a fiber-resin matrix formed with, at least partially, at least one of at least one resin/additive mixture produced by mixing at least one first opaque additive within a first quantity of resin and a first layer of fibers having a plurality of pigmented fibers. The pigmented fibers are formed by at least one of impregnating at least a portion of the first layer of fibers with at least one second opaque additive and forming at least one layer of opaque coating over at least a portion of the first layer of fibers. The opaque coating has a third opaque additive. | 05-07-2009 |
20100047074 | Wind turbine lightning protection system - A glass-reinforced fiber or carbon-reinforced wind turbine blade having a suction side and a pressure side includes a tip portion adapted with an electric field control region disposed solely on or within the tip portion. The electric field control region is in electrical communication with or galvanically connected to an electric discharge conduction mechanism, wherein the electric field control region and the electric discharge conduction mechanism together operate to protect a wind turbine and its associated blade(s) from damage due to a lightning strike at the tip of the wind turbine blade(s) by controlling an electric field at the tip portion(s) caused by the lightning strike. | 02-25-2010 |
20100104447 | CARBON-GLASS-HYBRID SPAR FOR WIND TURBINE ROTORBLADES - A fiber reinforced matrix for a wind turbine rotor blade includes glass fibers and carbon fibers embedded in the same matrix material. | 04-29-2010 |
20100143145 | FIBRE-REINFORCED COMPOSITE MOULDING AND MANUFACTURE THEREOF - Method of manufacturing a fibre-reinforced composite moulding, the method comprising the steps of: (a) disposing at least one layer of fibrous reinforcing material within a mould; (b) disposing at least one pre-preg layer adjacent to the fibrous reinforcing material, the pre-preg layer comprising fibrous reinforcement at least partially impregnated with uncured first resin material, to form a laminar assembly of the at least one layer of fibrous reinforcing material and the at least one pre-preg layer within the mould; (c) applying a vacuum to the assembly; (d) infusing a flowable uncured second resin material, under the vacuum, into the at least one layer of fibrous reinforcing material; and (e) curing the first and second resin materials at least partially simultaneously to form the fibre-reinforced composite moulding which comprises at least one first structural portion formed from the fibrous reinforcement and the cured first resin material bonded to at least one second structural portion formed from the at least one layer of fibrous reinforcing material and the cured second resin material. | 06-10-2010 |
20100158694 | BLADE MODULE, A MODULAR ROTOR BLADE AND A METHOD FOR ASSEMBLING A MODULAR ROTOR BLADE - A blade module of a modular rotor blade comprising a hollow fiber composite body which extends along a longitudinal blade axis and at least one inlay located at or near a longitudinal end of the fiber composite body is provided. The inlay includes a receptacle which is adapted to receive a threaded fastener and an anchoring portion anchored to the fiber composite body. Further, a modular wind turbine rotor blade which includes at least two blade modules and a method for assembling a modular wind turbine rotor blade are provided. | 06-24-2010 |
20100232974 | BLADE MADE OF COMPOSITE MATERIAL COMPRISING A DAMPING DEVICE - The present invention relates to a blade made of composite material ( | 09-16-2010 |
20100239428 | SYSTEM FOR MANUFACTURING A ROTOR HAVING AN MMC RING COMPONENT AND A UNITARY AIRFOIL COMPONENT - A system for manufacturing an integrally bladed rotor is provided. This system includes a ring component, wherein the ring component further includes at least one metal matrix composite and a continuous radially outwardly facing blade conical surface; an airfoil component, wherein the at least one airfoil component has been created from a single, unitary piece of material and further includes a plurality of individual airfoil blades and a continuous radially inwardly facing blade conical surface; and inertia welding means for frictionally engaging under an axially applied weld load the ring component and the airfoil component to effect an inertia weld therebetween along the conical surfaces. | 09-23-2010 |
20100278655 | ROTOR BLADE MADE OF A FIBRE-REINFORCED COMPOSITE MATERIAL AND PRODUCTION METHOD FOR IT - A rotor blade in a fibre-reinforced composite design for a tail rotor of a rotary wing aircraft (helicopter), with a blade section ( | 11-04-2010 |
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 |
20100322776 | Method for Manufacturing Braided Preforms - The present invention relates to an automatic method for manufacturing a stator or rotor blade preform for a turbine engine, comprising at least the following successive steps:
| 12-23-2010 |
20100329881 | TRANSVERSAL CONDUCTION LIGHTNING PROTECTION SYSTEM - A lightning protection system for a wind turbine blade or aircraft wing includes a glass-reinforced fiber or carbon-reinforced wind turbine blade or aircraft wing having a tip region, a suction side, a pressure side, a leading edge and a trailing edge. A substantially planar sheet of conductive or semi-conductive material is disposed internal to the blade tip region or wing tip region and between the suction side and pressure side. The sheet operates during a lightning discharge to form an electric field control mechanism causing the lightning discharge to attach to the tip region. The sheet is in electrical communication or galvanic connection with a conductive or semi-conductive path such that the electric field control mechanism and the path together operate to protect the wind turbine blade or aircraft wing from damage caused by the lightning strike in the tip region of the wind turbine blade or aircraft wing by controlling an electric field in the tip region caused by the lightning strike. | 12-30-2010 |
20110002790 | Thermoplastic last-stage blade - A turbine blade, a turbine and a method of manufacturing a damping zone of a turbine blade are provided. The turbine blade includes a damping zone with a damping layer and the damping layer has a fiber matrix system. The fiber matrix system has a thermoplastic matrix. Reinforcing fibers are embedded in the thermoplastic matrix. | 01-06-2011 |
20110027095 | METHOD OF MANUFACTURING A COMPOSITE PART FROM RESIN-PREIMPREGNATED FIBRES - The present invention relates to a method of manufacturing a laminated composite part from a number of layers of resin-preimpregnated fibres ( | 02-03-2011 |
20110027096 | METHOD OF MANUFACTURE OF AEROFOIL LEADING EDGE STRIP - A protective leading edge strip component for an aerofoil is formed from a sheet of PEEK fabric woven in two-dimensions by draping the sheet over a male moulding tool ( | 02-03-2011 |
20110052404 | SWEPT BLADES WITH ENHANCED TWIST RESPONSE - In certain swept turbine blades, unidirectional fibers within the blade shell are applied in a substantially uncurved state relative to an inboard blade axis, rather than curving the unidirectional fabric in the same direction as the blade sweep. By doing so, the angle between a layout axis of the blade and the fibers of the unidirectional fabric increases with increasing distance outboard of the blade root, enhancing the twist response in the outboard region of the swept blade. | 03-03-2011 |
20110052405 | COMPOSITE AIRFOIL WITH LOCALLY REINFORCED TIP REGION - A composite airfoil has a root, a tip, a root region and a tip region. The composite airfoil further includes a woven core, a first filament reinforced airfoil ply, a second filament reinforced airfoil ply and a local reinforcement laminate section. The woven core extends from the root to the tip of the composite airfoil. The first filament reinforced airfoil ply is stacked on the woven core and the second filament reinforced airfoil ply is stacked adjacent to the first filament reinforced airfoil ply on the woven core. The local reinforcement laminate section is at the tip region of the composite airfoil and comprises a first reinforcement ply that does not extend to the root region. The local reinforcement laminate section increases a chordwise flexural stiffness of the tip region. | 03-03-2011 |
20110058948 | WINDMILL PROPELLER BLADE AND METHOD OF MAKING SAME - A windmill blade which comprises reinforcing fibers in a toughened resin matrix. The resin matrix is made from a composition which comprises (a) one or more epoxy resins and/or one or more epoxy vinyl ester resins, (b) one or more reactive diluents, and (c) at least one amphiphilic block copolymer. The amphiphilic block copolymer comprises at least two different polyether blocks and is present in the composition in an amount of from about 0.5% to about 10% by volume, based on the total volume of the matrix composition. | 03-10-2011 |
20110070092 | HYBRID COMPONENT - A method for making a hybrid component comprises the steps of placing a lower shell in the lower half of an RTM form tool; placing layers of composite fabric on top of the lower shell to define a composite core; placing an upper shell on top of the layers; closing the RTM form tool; infiltrating the composite fabric with resin; curing the resin. At least one of the lower and upper shells comprises pins projecting generally perpendicularly to its surface, and the pins penetrate the composite fabric. | 03-24-2011 |
20110097212 | TOUGHENED CURABLE COMPOSITIONS - Toughened curable compositions are described. The curable compositions include a curable resin, surface-modified nanoparticles, and rubber nano-domains. Both core-shell rubber nano-domains, and nano-rubber domains arising from self-assembled block co-polymers are disclosed. Toughened, cured resin compositions, and articles comprising such cured compositions are also discussed. | 04-28-2011 |
20110129348 | CORE DRIVEN PLY SHAPE COMPOSITE FAN BLADE AND METHOD OF MAKING - A method of forming a composite airfoil having a suction side and pressure side includes the steps of designing a mold, designing a woven core, designing a plurality of plies and assembling the designed mold, core and plies to create the composite airfoil. The hollow mold has an inner surface which defines the surface profile of the composite airfoil. The plurality of plies is designed to fit between the inner surface of the mold and an outer surface of the woven core. The plurality of plies is designed after the step of designing the woven core. | 06-02-2011 |
20110129349 | Fibre-Reinforced Plastic Material - A fibre-reinforced plastic material with a matrix material and fibres embedded in the matrix material is provided. Fibre spacers are embedded in the matrix material between the fibres to avoid direct fibre-to-fibre contacts. | 06-02-2011 |
20110129350 | Fibre-Reinforced Plastic Material - A fibre-reinforced plastic material with a matrix material and fibres embedded in the matrix material is provided. A surface of the fibres has at least one groove extending a bonding surface of the fibres for an enhanced adhesion of the matrix material. | 06-02-2011 |
20110135486 | BELT OF A ROTOR BLADE OF A WIND POWER PLANT | 06-09-2011 |
20110142670 | THERMOPLASTIC ROTOR BLADE - A blade comprises a lightweight core, a composite material disposed on the core, and a skin located on the composite material. The composite material comprises fibers incorporated into a thermoplastic resin matrix in the form of a prepreg sheet or wet layup. The rotor blade may also comprise a front edge member attached along at least a portion of a leading edge of the core, a rear edge member attached along at least a portion of a trailing edge of the core, and a skin located over the core, the front edge member, and the rear edge member. The rotor blade may also comprise a spar extending through the core along a longitudinal axis of the rotor blade, and a skin located over the core and the spar. The edge members and the spars may be fabricated from thermoplastic material. | 06-16-2011 |
20110142671 | WIND TURBINE ROTOR BLADES WITH ENHANCED LIGHTNING PROTECTION SYSTEM - A wind turbine rotor blade includes a plurality of lightning receptors configured along either or both of the pressure side or suction side of the blade. At least one continuity circuit is configured with the blade, with the lightning receptors disposed in series within a respective continuity circuit such that an electrical continuity path defined by the circuit passes through each of the lightning receptors within the continuity circuit. The circuit has terminal ends that extend through the blade root for conducting continuity checks with the circuit. | 06-16-2011 |
20110150661 | Sheet molding compound with cores - A component made of at least one thermoformable material, having a first layer made of a first material, a second layer made of a second material, and a third layer made of the first material. The three layers form a sheet, which is formed to various shapes, depending upon the part that is to be created. The sheet may be formed to produce the bumper of an automobile, a door panel for an automobile, a flotation device, such as a pontoon for a pontoon boat, or the like. The first and third layers are SMC, and the second layer, or “core,” is disposed between the first and third layers, allowing the strength of the first and third layers to be used more efficiently, compared to a sheet having only the first and third layers, and no core. | 06-23-2011 |
20110164986 | SYSTEM FOR IMPACT ZONE REINFORCEMENT - A system may include a structure having a leading edge and a fiber-reinforced composite cover. The fiber-reinforced composite cover may include a protective portion and a retaining portion, wherein the retaining portion extends about the structure to self-retain the protective portion along the leading edge, and the protective portion is different from the retaining portion. | 07-07-2011 |
20110164987 | METHOD OF MANUFACTURING A WIND TURBINE BLADE COMPRISING STEEL WIRE REINFORCED MATRIX MATERIAL - A method of manufacturing a shell construction part of a wind turbine blade, the shell construction part being made of a fibre reinforced polymer material including a polymer matrix and fibre reinforcement material embedded in the polymer matrix. The method comprises the steps of a) providing a forming structure comprising a mould cavity and having a longitudinal direction, b) placing the fibre reinforcement material in mould cavity, c) providing a resin in the mould cavity simultaneously with and/or subsequently to step b), and d) curing the resin in order to form the composite structure, wherein at least 20% by volume of the fibre reinforcement material consists of metallic wires. | 07-07-2011 |
20110171038 | WIND TURBINE ROTOR BLADE AND PRODUCING METHOD OF WIND TURBINE ROTOR BLADE - A wind turbine rotor blade includes an outer skin material formed of fiber-reinforced plastic, main strength materials (super cap materials) disposed on inner surfaces of a back side and a front side of the outer skin material, and crossbeam materials (sheer webs) disposed between the main strength materials, wherein the main strength material is formed by stacking, one on top of another, reinforced fiber sheets having constant widths in a longitudinal direction. | 07-14-2011 |
20110176927 | COMPOSITE FAN BLADE - A composite fan blade includes a first filament reinforced airfoil ply section, a second filament reinforced airfoil ply section and a three dimensionally woven core. The woven core is located between the first and second reinforced airfoil ply sections. The woven core includes first yarns extending in a chordwise direction and second yarns extending in a spanwise direction. There are a greater number of second yarns in a first region of the woven core than in a second region of the woven core. | 07-21-2011 |
20110182743 | THREE-DIMENSIONALLY WOVEN COMPOSITE BLADE WITH SPANWISE WEFT YARNS - A composite blade has a root and a tip in a spanwise direction and a leading edge and a trailing edge in a chordwise direction. The composite blade includes a three-dimensional woven preform having weft yarns and warp yarns. The weft yarns extend in the spanwise direction of the composite blade. The warp yarns interweave the weft yarns and extend in the chordwise direction of the blade. | 07-28-2011 |
20110200447 | TURBOMACHINE IMPELLER - An impeller is provided that may be used in compressors or turbines. In another aspect of the present invention, a fiber or a bundle of fibers is woven to form at least two blades of an impeller. Yet another aspect of the present invention employs a peripheral component woven around impeller blades. An additional conductive fiber or bundle of fibers is woven into the impeller in a further aspect of the present invention. Moreover, an aspect of the present invention provides a chilling system that includes at least one compressor, at least one wave rotor, and a refrigerant. | 08-18-2011 |
20110211969 | WIND TURBINE BLADES WITH IMPROVED BOND LINE AND ASSOCIATED METHOD - A wind turbine blade includes an upper shell member and a lower shell member with an internal cavity therebetween. The shell members are joined at leading and trailing edges of the blade with a bond paste along a bond line having a designed width. A sleeve is disposed within the internal cavity between the upper and lower shell members along at least one of the leading or trailing edges, with the bond paste contained within the sleeve. The sleeve has a closed end that is impermeable to the bond paste and opposite sides that are permeable to air and permeable to the bond paste. The bond past adheres to the upper and lower shell members through the sleeve sides and the closed end of the sleeve defines the design width of the bond line in the internal cavity. | 09-01-2011 |
20110293435 | COMPOSITE AEROFOIL - A composite blade ( | 12-01-2011 |
20110299994 | Turbine Blade, Especially Rotor Blade for a Steam Engine, and Corresponding Method of Manufacture - A section of a turbine blade includes a fiber composite material having a matrix and fibers embedded therein. The matrix includes nanoparticles that are distributed in or on the matrix. The turbine blade can for example be used as a rotor blade in the final stage of a condensing steam turbine. | 12-08-2011 |
20120003100 | COMPOSITE TURBOMACHINE BLADE - A composite turbomachine blade ( | 01-05-2012 |
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 |
20120034094 | PROTECTED WIND TURBINE BLADE, A METHOD OF MANUFACTURING IT AND A WIND TURBINE - A protected turbine blade includes a first turbine blade shell and a second turbine blade shell, being fibre-reinforced, are connected by a cured resin and provided with a protective cover at a leading edge. The protective cover is a composite comprising a layer of UV-resistant thermoplastic material and a layer of cured epoxy resin, the UV-resistant thermoplastic material having the following properties a surface free energy of less than 35 mJ/m | 02-09-2012 |
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 |
20120134839 | COMPOSITE AIRFOIL AND TURBINE ENGINE - A composite airfoil includes a core that has a three-dimensional network of fibers. The core defines an airfoil section and a root section. A composite skin covers a portion of the core excluding the root section. | 05-31-2012 |
20120141285 | Rotor Blade for a Wind Turbine, and a Combination of a Radar Station and a Wind Turbine - A rotor blade for a wind turbine includes a casing structure made of flat fiber composite material that forms the rotor blade surface. To reduce interferences to radar systems caused by the use of the rotor blade, at least at the leading edge and the trailing edge of the rotor blade is provided with a fiber composite material is designed for providing a frequency-dependent radar reflection factor for radar radiation that is incident perpendicular to the surface and which has a reflection minimum at a given frequency in the range of 1 GHz to 10 GHz. | 06-07-2012 |
20120177501 | FIBER-REINFORCED Al-Li COMPRESSOR AIRFOIL AND METHOD OF FABRICATING - A metal matrix composite lightweight compressor airfoil. The airfoil comprises a braided fabric embedded in a lightweight aluminum-lithium alloy. The airfoils are fabricated by forming a plurality of fiber tows by twisting filaments or fibers. The tows are then braided into a fabric. The fabric may be impregnated with an optional fugitive polymer that temporarily occupies interstices of the fabric to facilitate handling of the pre-formed braided fabric, but which is subsequently removed. The airfoil may then be formed as a MMC by one of two separate methods. In the first method, aluminum-lithium alloy is pressure augmented casting into a die that includes a preform of fabric impregnated with fugitive polymer. In a second method, a preform is formed using a tool and mandrel by impregnating fabric with aluminum-lithium alloy. Then aluminum-lithium alloy is pressure augmented cast into a die that includes the alloy-impregnated preform. | 07-12-2012 |
20120183409 | Turbine blade, turbine shaft, turbine system and method for installing the turbine blade - A turbine blade of fiber-reinforced plastic material is provided. The turbine blade includes a blade root as a connecting element that is connectable to a turbine shaft. The turbine shaft has a groove for accommodating the blade root in the installed state of the turbine blade on the turbine shaft. The blade root has a shape of fit finely matched to the shape of the groove of the turbine shaft as a result of a heating effect produced by a heating arrangement and acting on the blade root during installation on the turbine shaft and as a result of auto-adaptation of the shape thereof to the shape of the groove of the turbine shaft. | 07-19-2012 |
20120244006 | USE OF LAYER STRUCTURES IN WIND POWER PLANTS - The invention relates to the use of layer structures in the production of rotor blades for wind power plants, and to rotor blades for wind power plants. | 09-27-2012 |
20120257983 | COMPONENT HAVING AN EROSION RESISTANT LAYER - A composite component such as a blade or vane of a gas turbine engine includes a body and an erosion-resistant layer. The body includes a fibre reinforcement in a resin matrix, and the erosion-resistant layer includes a 3-D woven fabric element which is also resin-impregnated. The woven fabric element is made from a thermoplastics material such as PEEK, and may be thicker at the leading edge of the component than at pressure and suction surfaces. The component may be manufactured in a laying-up process in which the woven fabric element of the erosion-resistant layer is placed in a mould with the resin-impregnated fibre reinforcement of the body so that the resin of the body migrates into the woven fabric element of the erosion-resistant layer. | 10-11-2012 |
20120301312 | CERAMIC MATRIX COMPOSITE AIRFOIL STRUCTURES FOR A GAS TURBINE ENGINE - A Ceramic Matrix Composite (CMC) airfoil segment for a gas turbine engine includes a box-shape fiber geometry which defines a rectilinear pressure side bond line and a rectilinear suction side bond line. | 11-29-2012 |
20120301313 | CERAMIC MATRIX COMPOSITE CONTINUOUS "I"-SHAPED FIBER GEOMETRY AIRFOIL FOR A GAS TURBINE ENGINE - A Ceramic Matrix Composites (CMC) airfoil for a gas turbine engine includes at least one CMC ply which defines a suction side, an outer platform, a pressure side and an inner platform with a continuous “I”-shaped fiber geometry. | 11-29-2012 |
20120301314 | HYBRID ROTOR DISK ASSEMBLY WITH A CERAMIC MATRIX COMPOSITE AIRFOIL FOR A GAS TURBINE ENGINE - A Ceramic Matrix Composite (CMC) airfoil for a gas turbine engine includes a CMC root section which extends to form a CMC airfoil section, the CMC root section defines a bore along a non-linear axis. | 11-29-2012 |
20120301315 | CERAMIC MATRIX COMPOSITE AIRFOIL FOR A GAS TURBINE ENGINE - A Ceramic Matrix Composites (CMC) airfoil for a gas turbine engine includes a first multiple of CMC plies which define a suction side, a first airfoil portion of the first multiple of CMC plies at least partially parallel to an airfoil axis. A second multiple of CMC plies define a pressure side, a second airfoil portion of the second multiple of CMC plies at least partially parallel to the airfoil axis and bonded to the first airfoil portion. | 11-29-2012 |
20120315147 | WIND TURBINE COMPONENT HAVING AN ELECTRICAL LINE EMBEDDED IN A LAMINATE AND METHOD FOR MAKING THE SAME - A wind turbine component having a laminate of fibrous material and plastic and an electrical line embedded in the laminate, wherein a profile is arranged on a lateral surface of the electrical line, said profile counteracting the formation of a hollow space or plastic nest between the lateral surface and a fibrous material layer which covers an upper side of the electrical line during the manufacture of the laminate. | 12-13-2012 |
20120315148 | BLADE COMPRISING PRE-WIRED SECTIONS - The invention relates to a method for wiring suctions ((i), (i+1)) of a blade ( | 12-13-2012 |
20130011271 | CERAMIC MATRIX COMPOSITE COMPONENTS - A CMC component has an integral airfoil and root portion formed by a plurality of plies extending in a spanwise direction and an external feature formed by a plurality of bent plies. | 01-10-2013 |
20130017093 | AIRCRAFT PROPELLER BLADEAANM Coupe; DominiqueAACI Le HaillanAACO FRAAGP Coupe; Dominique Le Haillan FRAANM Dambrine; Bruno Jacques GerardAACI Le Chatelet en BrieAACO FRAAGP Dambrine; Bruno Jacques Gerard Le Chatelet en Brie FRAANM Mahieu; Jean-NoelAACI ParisAACO FRAAGP Mahieu; Jean-Noel Paris FR - An aircraft propeller blade including an airfoil-profile structure. The airfoil-profile structure includes at least one fiber reinforcement obtained by three-dimensional weaving of yarns and densified by a matrix, and a shaping part made of cellular rigid material of determined shape, the reinforcement including at least two halves linked together by continuous weaving in the leading edge of the propeller blade, the two halves fitting tightly around the shaping part. | 01-17-2013 |
20130017094 | METHOD OF FABRICATING A COMPOSITE MATERIAL BLADE HAVING INTERNAL CHANNELS, AND A COMPOSITE MATERIAL TURBINE ENGINE BLADEAANM Coupe; DominiqueAACI Le HaillanAACO FRAAGP Coupe; Dominique Le Haillan FRAANM Dambrine; Bruno Jacques GerardAACI Le Chatelet en BrieAACO FRAAGP Dambrine; Bruno Jacques Gerard Le Chatelet en Brie FRAANM Mahieu; Jean-NoelAACI ParisAACO FRAAGP Mahieu; Jean-Noel Paris FR - A turbine engine blade made of composite material including fiber reinforcement obtained by weaving a first plurality of yarns with a second plurality of yarns, the yarns of the first plurality of yarns being arranged in successive layers and extending in a longitudinal direction of the fiber blank corresponding to a longitudinal direction of the blade, the reinforcement being densified by a matrix. The blade includes one or more internal channels extending in the longitudinal direction of the blade. | 01-17-2013 |
20130022472 | BLADE FOR A TURBINE OPERATING IN WATER - A blade for use in water, the blade comprising an outer shell of fibre reinforced plastic defining a cavity. A substantial portion of the cavity is filled with a resin which adheres to the inner wall of the shell. | 01-24-2013 |
20130028744 | AERODYNAMIC SURFACE WITH IMPROVED PROPERTIES - An article including an outer surface that serves as an aerodynamic surface when the article is subjected for an air stream. A resin matrix made of a polymeric composite laminate of at least one ply includes the outer surface. The at least one ply includes a nano structure embedded therein such that nano filaments of the nano structure in the ply essentially have the same angular orientation relative the plane of the outer surface. The outer ply is a ply of a laminate including at least two plies. Each ply includes large fibers having an orientation different from or identical to the orientation of large fibers of an adjacent ply. | 01-31-2013 |
20130034447 | WIND TURBINE BLADE HAVING AN OUTER SURFACE WITH IMPROVED PROPERTIES - A wind turbine blade including an outer surface that serves as an aerodynamic surface when the blade is subjected for an air stream. A resin matrix made of a laminate of at least one ply includes the outer surface. The outer ply includes a nano structure embedded therein such that the filaments of the nano structure in the ply have essentially the same angular orientation relative a plane of the outer surface. | 02-07-2013 |
20130078105 | ROTOR BLADE FOR A WIND TURBINE - The invention relates to a rotor blade for a wind turbine, comprising a root of the rotor blade and a rotor blade aerofoil. The object of providing a rotor blade which can be easily and inexpensively produced even when of great lengths and which, what is more, enables a system for protection against lightning to be incorporated in a simplified way is achieved, for a rotor blade of the generic kind, by having the rotor blade consist of at least partly a fibre-reinforced plastics composite having metal inserts embedded in the matrix of the fibre-reinforced plastics composite. | 03-28-2013 |
20130089429 | TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL, AND A METHOD OF FABRICATING IT - A turbine engine blade made of composite material including fiber reinforcement densified by a matrix is fabricated by a method including: performing three-dimensional weaving to make a single-piece fiber blank; shaping the fiber blank to obtain a single-piece fiber preform having a first portion forming a preform for a blade root and an airfoil, at least one second portion forming a preform for a blade inner platform or for wipers of a blade outer platform, and at least one third portion forming a preform for reinforcing a blade inner platform or for overhangs of a blade outer platform; and densifying the fiber preform with a matrix to obtain a composite material blade having fiber reinforcement constituted by the preform and densified by the matrix, and forming a single piece with an inner and/or outer platform incorporated therein. | 04-11-2013 |
20130101429 | TURBOMACHINE BLADE OR VANE HAVING COMPLEMENTARY ASYMMETRICAL GEOMETRY - A turbomachine blade is made of composite material. The blade includes a first portion constituting at least an airfoil exhibiting two faces each connecting a leading edge to a trailing edge, the first portion forming a single part with at least one second portion present only on one of the faces of the airfoil. The second portion constitutes a portion of at least one of the following elements: a flowpath delimiting outer portion of an inner platform, an inner portion of an inner platform, a flowpath delimiting inner portion of an outer platform, and an outer portion of an outer platform. Portions of fiber reinforcements corresponding to the first and the second portions of the blade are at least partially mutually imbricated. Yarns of the first portion of the fiber reinforcement penetrate into the second portion of the fiber reinforcement. | 04-25-2013 |
20130101430 | TEXTILE COMPOSITE WIND TURBINE BLADE - A wind turbine blade includes at least one mandrel and a sock that covers the at least one mandrel. The sock includes a plurality of braided fibers within a matrix material. The fibers can be made of different materials. Also, stiffness of the sock can vary across the wind turbine blade. A method of manufacturing the wind turbine blade is also disclosed. | 04-25-2013 |
20130115094 | VACUUM PUMP - Provided is a vacuum pump in which no finish processing has to be carried out after shaping of a cylindrical rotor even in use of a cylindrical rotor obtained by shaping a fiber-reinforced plastic material into a cylindrical shape. The vacuum pump has a turbo-molecular pump section and a thread groove pump section. The upper end section of a cylindrical rotor, which is obtained by shaping a fiber-reinforced plastic material into a cylindrical shape, of the thread groove pump section, is joined to the lower end section of a rotor of the turbo-molecular pump section. A joining portion of the rotor of the turbo-molecular pump section and the cylindrical rotor of the thread groove pump section is disposed upstream of an exhaust passage. As a result, finish processing does not have to be carried out after shaping of the cylindrical rotor. If finish processing is performed after shaping of the cylindrical rotor a resin may be coated onto a rugged portion of the cylindrical rotor, or fibers may be helically wound at a winding angle not greater than 45 degrees. | 05-09-2013 |
20130136614 | PROPELLER BLADE HAVING COMPLIANT ADHESIVE AT SPAR INTERFACE - A propeller blade includes a foam core, an adhesive layer formed on the core and a structural layer that covers at least a portion of the adhesive layer and that surrounds at least a portion of the foam core. | 05-30-2013 |
20130136615 | PROPELLER BLADE WITH LIGHTWEIGHT INSERT - A propeller blade includes a foam core and a structural layer that surrounds at least a portion of the foam core and includes a face side and a camber side is disclosed. The propeller blade also includes an insert disposed in the foam core in operable contact with the face side and the camber side of the structural layer. | 05-30-2013 |
20130136616 | PROPELLER BLADE HAVING A HONEYCOMB SPAR CORE - A propeller blade includes a honeycomb core and a structural layer that surrounds at least a portion of the honeycomb core. | 05-30-2013 |
20130164144 | BULKHEAD OF A WIND TURBINE - A bulkhead ( | 06-27-2013 |
20130177435 | WIND TURBINES AND WIND TURBINE ROTOR BLADES WITH REDUCED RADAR CROSS SECTIONS - Wind turbine rotor blades with a reduced radar cross sections include a shell having a leading edge opposite a trailing edge, a structural support member that supports the shell and is disposed internal the wind turbine rotor blade between the leading edge and the trailing edge and extends for at least a portion of a rotor blade span length, wherein the structural support member comprises fiberglass, one or more cavities internal the wind turbine rotor blade, and a lightweight broadband radar absorbing filler material disposed in at least one of the one or more cavities to provide the reduced radar cross section. | 07-11-2013 |
20130224035 | COMPOSITE AIRFOIL WITH LOCAL TAILORING OF MATERIAL PROPERTIES - A composite airfoil includes a woven preform with warp yarns of a first material, the preform with a tip, root, leading edge, trailing edge and an intermediate region positioned between the root and the tip; and a first matrix made of a first resin maintaining the relative positions of the preform yarns. The composite blade further includes at least one of: fill yarns of a second material in the woven preform; and a second matrix made of a second resin maintaining the relative positions of the preform yarns in a portion of the airfoil. | 08-29-2013 |
20130243603 | THREE-DIMENSIONALLY WOVEN COMPOSITE BLADE WTIH SPANWISE WEFT YARNS - A composite blade has a root and a tip in a spanwise direction and a leading edge and a trailing edge in a chordwise direction. The composite blade includes a three-dimensional woven preform having weft yarns and warp yarns. The weft yarns extend in the spanwise direction of the composite blade. The warp yarns interweave the weft yarns and extend in the chordwise direction of the blade. | 09-19-2013 |
20130302173 | WEAR RESISTANT TURBINE FAN BLADE - The disclosure generally relates to a wear resistant turbine fan blade having a composite lubricated sheet adhered to a root of the turbine fan blade and having improved tribological properties at high temperatures. | 11-14-2013 |
20130315747 | WIND TURBINE BLADE WITH IMPROVED GEOMETRY FOR REINFORCING FIBERS - A wind turbine blade ( | 11-28-2013 |
20140003955 | LAMINATE PRE-FORM FOR A WIND TURBINE BLADE | 01-02-2014 |
20140003956 | MECHANICAL REINFORCEMENT FOR A PART MADE OF COMPOSITE MATERIAL, IN PARTICULAR FOR A WIND TURBINE BLADE OF LARGE DIMENSIONS | 01-02-2014 |
20140023513 | AGGLOMERATED PARTICLE CLOUD NETWORK COATED FIBER BUNDLE - An agglomerated particle cloud network coated fiber bundle containing a bundle of fibers and an agglomerated particle cloud network. The bundle of fibers contains a plurality of fibers and void space between the fibers. The agglomerated particle cloud network contains a plurality of agglomerated nanoparticles located in at least a portion of the void space in the bundle of fibers. The agglomerated nanoparticles form bridges between adjacent fibers. Between 10 and 100% by number of fibers contain bridges to one or more adjacent fibers within the agglomerated particle cloud network coated fiber bundle. The agglomerated nanoparticles form between about 1 and 60% of the effective cross-sectional area of the agglomerated particle cloud network coated fiber bundle. | 01-23-2014 |
20140023514 | Wind Turbine Rotor Blade Components And Methods Of Making Same - Structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating load-bearing support structures and reinforcements of wind turbine blades. Individual preform layers include multiple elongate unidirectional strength elements or rods arranged in a single layer along a longitudinal axis of the preform layer. Each preform layer includes one or more fibrous carrier layers to which the multiple strength elements or rods are joined and arranged in the single layer. Each strength element or rod is longitudinally oriented and adjacent to other elements or rods. Individual strength elements or rods include a mass of substantially straight unidirectional structural fibers embedded within a matrix resin such that the elements or rods have a substantially uniform distribution of fibers and high degree of fiber collimation. The relative straightness of the fibers and fiber collimation provide strength elements or rods and the preform layers with high rigidity and significant compression strength. | 01-23-2014 |
20140023515 | FIBRE-REINFORCED COMPOSITE MOULDING AND MANUFACTURE THEREOF - Method of manufacturing a fibre-reinforced composite moulding, the method comrisinci the steps of: (a) disposing at least one layer of fibrous reinforcing material within a mould; (b) disDosing at least one pre-preg layer adjacent to the fibrous reinforcing material, the pre-preg layer comprising fibrous reinforcement at least partially impregnated with uncured first resin material, to form a laminar assembly of the at least one layer of fibrous reinforcing material and the at least one pre-preg layer within the mould; (c) applying a vacuum to the assembly; (d) infusing a flowable uncured second resin material, under the vacuum, into the at least one layer of fibrous reinforcing material: and (e) curing the first and second resin materials at least partially simultaneously to form the fibre-reinforced composite moulding which comprises at least one first structural portion formed from the fibrous reinforcement and the cured first resin material bonded to at least one second structural portion formed from the at least one layer of fibrous reinforcing material and the cured second resin material. | 01-23-2014 |
20140086753 | METHOD OF REINFORCING A MECHANICAL PART - A method of reinforcing a mechanical part, for example a turbine engine part, the part being made by assembling together two portions, the method including: inserting reinforcing mechanisms of elongate shape at least in part in at least one recess formed in one of the portions and opening out into a junction surface between the portions; and assembling the two portions together. | 03-27-2014 |
20140093381 | TURBINE COMPONENT, TURBINE BLADE, AND TURBINE COMPONENT FABRICATION PROCESS - A turbine component, a turbine blade, and a turbine component fabrication process are disclosed. The turbine component includes ceramic matrix composite plies and a feature configured for preventing interlaminar tension of the ceramic matrix composite plies. The feature is selected from the group consisting of ceramic matrix composite tows or precast insert tows extending through at least a portion of the ceramic matrix composite plies, a woven fabric having fiber tows or a precast insert preventing contact between a first set of the ceramic matrix composite plies and a second set of the ceramic matrix composite plies, and combinations thereof. The process includes laying up ceramic matrix composite plies in a preselected arrangement and securing a feature configured for interlaminar tension. | 04-03-2014 |
20140119936 | WIND TURBINE BLADE COMPRISING METAL FILAMENTS AND CARBON FIBRES AND A METHOD OF MANUFACTURING THEREOF - Wind turbine blade has a longitudinal direction and includes a shell structure made of a fibre-reinforced polymer material including a polymer matrix and reinforcement material comprising a plurality of carbon fibre layers embedded in the polymer matrix. At least a portion of the shell structure is formed of a laminate | 05-01-2014 |
20140140854 | WIND TURBINE BLADE WITH A BLADE ATTACHMENT - A wind turbine blade with a blade attachment is provided. A tip end of the wind turbine blade is connected with the blade attachment by a glue-interface. The glue-interface is arranged between the tip end of the blade and the blade attachment. The glue-interface is arranged in a circumferential manner in view to the tip end of the blade and in view to the blade attachment. The blade attachment includes a core with a surface, while the core is surrounded by this surface. | 05-22-2014 |
20140178204 | WIND TURBINE ROTOR BLADES WITH FIBER REINFORCED PORTIONS AND METHODS FOR MAKING THE SAME - Methods of manufacturing a fiber reinforced portion of a wind turbine rotor blade include disposing a continuous fiber mat adjacent a prefabricated layer, wherein the continuous fiber mat comprises randomly arranged reinforcing fibers and wherein the prefabricated layer comprises reinforcing fibers and a cured polymeric resin. The method further includes disposing a structural layer adjacent the continuous fiber mat opposite the prefabricated layer, wherein the structural layer comprises reinforcing fibers. The method then includes infusing a polymeric resin through at least the continuous fiber mat and curing the resin to form the fiber reinforced portion of the wind turbine rotor blade. | 06-26-2014 |
20140193269 | Triaxial Fiber-Reinforced Composite Laminate - Provided is a rotor blade that may include a first layer having first plurality of fibers oriented at first angle of about 10 to 30 degrees relative to a long axis of the rotor blade, a second plurality of fibers oriented at a second angle of about 60 to 75 degrees relative to the first plurality of fibers, and a third plurality of fibers oriented at a third angle of about −60 to about −75 degrees relative to the second plurality of fibers. | 07-10-2014 |
20140205463 | Turbine Engine Rotor Including Blade Made of Composite Material and Having an Added Root - A turbine rotor includes a plurality of blades of composite material comprising fiber reinforcement densified by a matrix. Each blade comprises a blade body extending between an inner end having a blade root and an outer end forming the tip of the blade. The rotor also includes outer platform elements of composite material comprising fiber reinforcement densified by a matrix, each outer platform element including an opening in which the outer end of a blade is engaged. The portion of the outer end of each blade that extends beyond the outer platform element includes a slot or a notch for receiving a locking element. | 07-24-2014 |
20140241896 | A WIND TURBINE BLADE - The wind turbine blade ( | 08-28-2014 |
20140294594 | HYBRID TURBINE BLADE INCLUDING MULTIPLE INSERT SECTIONS - A hybrid turbine blade and method of fabrication, comprising a shank portion and an airfoil portion. The airfoil portion comprising a composite outer structure having a recess formed therein and an alternating stack of at least one composite section and at least two insert sections disposed in the recess. The outer composite structure and the at least one composite section having a first density. The at least two insert sections having a second mass density, which is less than the first mass density. The composite outer structure and the alternating stack of at least one composite section and at least two insert sections together define an airfoil portion that meets all mechanical load carrying requirements of said hybrid turbine blade such that no load transfer needs to occur through said at least two insert sections. | 10-02-2014 |
20140301856 | METHOD OF OPTIMIZING AND CUSTOMIZING ROTOR BLADE STRUCTURAL PROPERTIES BY TAILORING LARGE CELL COMPOSITE CORE AND A ROTOR BLADE INCORPORATING THE SAME - An airfoil member can have a root end, a tip end, a leading edge, and a trailing edge. The airfoil member can include an upper skin, a lower skin, and a composite core member having a plurality of cells, an upper surface network of the cells can be bonded to the upper skin, a lower surface network of the cells can be bonded to the lower skin. The composite core can have a septum layer embedded in the cells that form the composite core, the septum layer being configured to provide tailored characteristics of the airfoil member. | 10-09-2014 |
20140301857 | DEVICE AND METHOD FOR MANUFACTURING A COMPONENT - The invention relates to a device ( | 10-09-2014 |
20140301858 | ROTOR DEVICE, TURBINE ROTOR DEVICE, AND GAS TURBINE AND TURBINE ENGINE HAVING SAME - Disclosed is a turbine rotor device for a gas turbine, the turbine rotor device comprising a turbine rotor body, and a pre-stressed fiber-wound layer, wherein the pre-stressed fiber-wound layer is wound on the periphery of the turbine rotor body to exert a predetermined pre-loading force on the turbine rotor body. Additionally, a rotor, and a gas turbine and a turbine engine having the turbine rotor device are also provided. | 10-09-2014 |
20140301859 | WIND TURBINE BLADES - A reinforcing structure | 10-09-2014 |
20140308135 | METHOD OF THROUGH-THICKNESS REINFORCING A LAMINATED MATERIAL - A method of providing through-thickness reinforcement of a laminated material which includes a matrix material including a step of creating a locally heated zone in the laminated material so as to locally soften the matrix material by focussing a set of at least two energy beams at a location where through-thickness reinforcement is required and a step of inserting a reinforcement element through the thickness of the laminated material at the location of the locally heated zone to through-thickness reinforce the laminated material. | 10-16-2014 |
20140322024 | CERAMIC MATRIX COMPOSITE MEMBER AND METHOD OF MANUFACTURING THE SAME - A ceramic matrix composite member used as a turbine blade includes a principal part forming a blade part and a dovetail part, and a subordinate part forming a platform part. A principal fiber in a ceramic fiber fabric forming the principal part is a continuous fiber. An extension direction of the principal fiber is in parallel with a direction in which stress is applied. The ceramic fiber fabrics respectively forming the principal part and the subordinate part are joined together and formed into an integrated three-pronged fiber fabric. The ceramic fiber fabric forming the principal part and the ceramic fiber fabric forming the subordinate part are integrated together by being set into a mold with the ceramic fiber fabric forming the subordinate part folded at a desired angle to the ceramic fiber fabric forming the principal part. Then, a ceramic matrix is formed in the obtained molded body. | 10-30-2014 |
20140328690 | PERFORATED VACUUM MEMBRANE FOR FIBRE REINFORCED LAMINATES - A composite component for a wind turbine blade is provided. The composite component includes a stack of at least one fibre layer and a membrane which has a first surface and a second surface which is an opposite surface with respect to the first surface. The membrane is arranged with the first surface on top of the stack. The membrane is perforated with openings, wherein the membrane is formed in such a way that the openings are permeable for a fluid flowing along a first direction directing from the first surface to the second surface and impermeable for a fluid flowing along a second direction directing from the second surface to the first surface. | 11-06-2014 |
20140328691 | REAR CASING, ROTOR BLADE WITH REAR CASING, AND A WIND TURBINE THAT COMPRISES SUCH A ROTOR BLADE - The invention concerns a rear box section for a rotor blade, in particular of a wind power installation, comprising a pressure-side surface, a suction-side surface, a trailing edge separating the pressure-side and suction-side surfaces, and a connecting side which is opposite to the trailing edge and which is adapted for mounting to a corresponding connecting surface of the rotor blade. The invention concerns in particular a rear box section which is sub-divided into a foot segment having the connecting side and one or more head segments which have the trailing edge and which can be coupled to the foot segment. The invention also concerns a rotor blade for a wind power installation, and a wind power installation. | 11-06-2014 |
20140334937 | COMPOSITE MATERIAL - Mechanical strength of a composite material is enhanced by a simple process. In a composite material comprising a resin or a rubber and an oxide glass, the resin or the rubber is dispersed in the oxide glass, or the oxide glass is dispersed in the resin or the rubber, and the oxide glass is softened and fluidized by heating at or lower than a heat decomposition temperature of the resin or the rubber. | 11-13-2014 |
20140341747 | METHOD OF CUTTING OFF LAMINATE LAYERS, EG A GLASS FIBRE OR CARBON-FIBRE LAMINATE LAYER IN THE BLADE OF A WIND TURBINE - The invention relates to a method of cutting off laminate layers for use in a fibre-reinforced laminate object comprising a number of combined laminate layers, wherein, along a section of the at least one rim of the laminate layer, a tapering cut is performed through the thickness of the laminate layer, whereby the thickness of the laminate layer is reduced. Since not only the number of laminate layers, but also the thickness of the individual laminate layers are reduced, a laminate layer is accomplished that can be used in a laminate object, by which both the issues of areas rich in resin, air pockets and the risk of delamination are reduced. The invention also relates to a laminate layer for use in a fibre-reinforced laminate object comprising a number of combined laminate layers and a fibre-reinforced laminate object in the form of the blade of a wind turbine, wherein the blade of the wind turbine comprises a number of combined laminate layers. | 11-20-2014 |
20140369847 | FIBROUS STRUCTURE HAVING VARIABLE NUMBERING YARNS - A fiber structure for reinforcing a composite material part, the structure being woven as a single piece by multilayer weaving between a first plurality of layers of yarns extending in a first direction and a second plurality of layers of yarns extending in a second direction. The second plurality of layers of yarns includes at least one layer of variable-weight yarns, each variable-weight yarn including a separable assembly of individual yarns, each having a determined weight. The fiber structure includes at least one portion of reduced thickness in which the variable-weight yarn presents a weight that is less than the weight that it presents prior to the reduced thickness portion. | 12-18-2014 |
20140369848 | FIBER PREFORM FOR A TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL AND HAVING AN INTEGRATED PLATFORM, AND A METHOD OF MAKING IT - A method of making a fiber preform, and the preform, for fabricating a turbine engine blade out of composite material, the method including: making a single-piece fiber blank by three-dimensional weaving with layers of longitudinal yarns interlinked by yarns of layers of transverse yarns; and shaping the fiber blank to obtain a single-piece fiber preform including a portion forming an airfoil preform and at least one portion forming a platform preform. During weaving, yarns of a first group of longitudinal yarns are extracted from the fiber blank beside one of side faces of the blank to form a portion corresponding to a blade platform preform, and yarns of a second group of longitudinal yarns are inserted into the fiber blank with mutual crossing of the yarns of the first group and the yarns of the second group. | 12-18-2014 |
20140369849 | COMPOSITE FIBRE COMPONENT FOR A ROTOR BLADE, DEVICE FOR MANUFACTURING A COMPOSITE FIBRE COMPONENT FOR A ROTOR BLADE AND THE METHOD FOR MANUFACTURING A COMPOSITE FIBRE COMPONENT FOR A ROTOR BLADE - A composite fibre component for a rotor blade of a wind power plant having a first surface, shaped in a predefined fashion, on a first side of the composite fibre component. The composite fibre component is developed such that the composite fibre component has a second surface, shaped in a predefined fashion, for connecting to a further component for the rotor blade on at least one partial area of a second side, facing away from the first side, of the composite fibre component. A manufacturing device for manufacturing a composite fibre component for a rotor blade of a wind power plant by using a vacuum infusion method, and to a method for manufacturing a composite fibre component for a rotor blade of a wind power plant by using a vacuum infusion method. | 12-18-2014 |
20150010406 | ROTOR BLADE WITH A SEGMENTED SUPPORTING STRUCTURE AND METHOD FOR MANUFACTURING THE ROTOR BLADE - A rotor blade with a supporting structure, wherein the rotor blade has a rotor blade base section and a rotor blade tip section, is provided. The supporting structure includes a first supporting segment for supporting the rotor blade base section and at least a second supporting segment for supporting the rotor blade tip section. Furthermore, the supporting structure includes the first supporting segment and the second supporting segment along the rotor blade longitudinal direction. The first supporting segment is joined to the second supporting segment in a supporting structure transition section, wherein the supporting structure transition section is located in between the rotor blade base section and the rotor blade tip section. Finally, the first supporting segment and/or the second supporting segment include a fibre material. A method for manufacturing the rotor blade is also provided. | 01-08-2015 |
20150064016 | Composite Blade Made by Additive Manufacturing - The present application relates to a blade of low pressure rectifier axial turbomachine. The blade can also be a rotor blade and/or a turbine blade. The blade includes a composite material with a matrix and a reinforcement that includes a mesh forming a three dimensional structure with a plurality of rods that describe a three-dimensional mesh based on polyhedrons. The three-dimensional structure extends over the majority of the thickness of the blade between the pressure side surface and the suction side surface and/or the majority of the length of the blade between the leading edge and the trailing edge. The rods of the reinforcement are bonded to each other and are distributed throughout the volume between the pressure side surface and the suction side surface of the blade. The rods form a three-dimensional mesh occupying the entire blade. The present application also relates to an iterative method for manufacturing a blade by additional layer manufacturing. | 03-05-2015 |
20150078911 | WIND TURBINE ROTOR BLADE COMPONENTS AND METHODS OF MAKING SAME - Structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating load-bearing support structures and reinforcements of wind turbine blades. Individual preform layers include multiple elongate unidirectional strength elements or rods arranged in a single layer along a longitudinal axis of the preform layer. Each preform layer includes one or more fibrous carrier layers to which the multiple strength elements or rods are joined and arranged in the single layer. Each strength element or rod is longitudinally oriented and adjacent to other elements or rods. Individual strength elements or rods include a mass of substantially straight unidirectional structural fibers embedded within a matrix resin such that the elements or rods have a substantially uniform distribution of fibers and high degree of fiber collimation. The relative straightness of the fibers and fiber collimation provide strength elements or rods and the preform layers with high rigidity and significant compression strength. | 03-19-2015 |
20150086378 | METAL STRUCTURAL REINFORCEMENT FOR A COMPOSITE TURBINE ENGINE BLADE - In structural reinforcement for a composite blade of a turbine engine, the reinforcement being for adhesively bonding to a leading edge of the blade and presenting over its full height a section that is substantially V-shaped, having a base that is extended by two lateral flanks, there is provided an assembly of a plurality of fiber bundles that is mounted in at least one housing in the base, which assembly defines fiber content that varies along the full height of the housing. | 03-26-2015 |
20150308404 | A WIND TURBINE BLADE COMPRISING AN AERODYNAMIC BLADE SHELL WITH RECESS AND PRE-MANUFACTURED SPAR CAP - A wind turbine blade has a load carrying structure including at least a first spar cap and an aerodynamic shell having an outer surface forming at least part of an exterior surface of the wind turbine blade and an inner surface. The aerodynamic shell includes a first recess at the inner surface of the blade shell with a first thickened part at a first side of the first recess and a second thickened part at a second side of the first recess. The first recess is tapered towards the first side of the recess and tapered towards the second side of the recess, and the first spar cap is arranged in the first recess of the aerodynamic shell. The first spar cap is tapered towards a first side of the spar cap and further is tapered towards a second side of the spar cap. | 10-29-2015 |
20150315920 | METHOD FOR MANUFACTURING A TURBINE ENGINE BLADE ROOT OF A COMPOSITE MATERIAL AND BLADE ROOT OBTAINED BY SUCH A METHOD - A method of fabricating a turbine engine blade root out of composite material including fiber reinforcement densified by a matrix, the method including making a central fiber strip and two outer fiber strips from three sets of yarn layers interlinked by three-dimensional weaving, passing the two outer strips through the central strip with the two outer strips crossing each other inside the central strip, eliminating the portions of the two outer strips lying outside the central strip by cutting them off, shaping the fiber blank in order to obtain a preform having a main portion forming a blade-root preform integral with two secondary portions forming bearing-plate preforms, and densifying the preform densified by the matrix. | 11-05-2015 |
20150316027 | WIND TURBINE BLADES AND METHOD OF MANUFACTURING THE SAME - Method of making a spar cap ( | 11-05-2015 |
20150375462 | SYSTEM AND METHOD FOR THE MANUFACTURE OF AN ARTICLE - A method of manufacturing a fibre-composite article is described, wherein a layer of fibre material is applied from a layup head to a mould along a layup path. The angle at which the fibre material is dispensed from the layup head is rotated relative to the angle of orientation of the layup path, to minimise the effects of gravity on the alignment of the fibre layer in the mould. The fibre-composite article is preferably a section of a blade for a wind turbine. | 12-31-2015 |
20150377210 | A METHOD AND AN APPARATUS FOR PROVIDING A TAPERED EDGE ON A SHEET COMPRISING A FIBROUS MATERIAL - The invention provides a method of providing a tapered edge on a sheet comprising a fibrous material, comprising moving the sheet while carrying out the following steps: —moving the sheet past a freezing device, which sheet is provided with a substance embedding the fibrous material, at least at a first edge of the sheet, which substance is in a non-solid state at room temperature, in particular at 20 degrees Celsius, and cooling the first edge using the freezing device, so that the substance at the first edge becomes solid, —moving the sheet past a machining device while the substance is solid from the cooling using the freezing device, and —machining, during the step of moving the sheet past a machining device, the first edge with the machining device to provide a first tapered edge. | 12-31-2015 |
20150377217 | Wind Turbine Blades - A method of making a wind turbine blade incorporating a lightning protection system, the method comprising: providing a wind turbine blade mould; arranging a protruding element in the mould; arranging an electrically conductive layer over the protruding element in the mould; arranging one or more structural layers and/or structural components over the electrically conductive layer; consolidating the layers under vacuum to form a blade shell having an integrated electrically conductive layer proximate an outer surface of the shell; separating the protruding element from the blade shell to define a recess in the outer surface of the shell, with the electrically conductive layer extending into the recess; providing an electrical component of the lightning protection system adjacent an inner surface of the shell; and electrically connecting the electrically conductive layer to the electrical component via a connecting member; wherein an end portion of the connecting member is housed in the recess such that a surface of the connecting member abuts the electrically conductive layer across an interface region inside the recess, and such that the end portion does not substantially protrude from the outer surface of the shell. | 12-31-2015 |
20160003215 | MOUNTING RING ARRANGEMENT - A mounting ring arrangement adapted for alignment of root bushings in a rotor blade root end during a rotor blade assembly step includes a mounting ring segment; and a partial mounting ring, which partial mounting ring is a closed annular component and includes a recess dimensioned to accommodate the mounting ring segment. A method of manufacturing a rotor blade, includes (A) arranging a fibre layup in a first blade mould and arranging a fibre layup in a second blade mould; (B) arranging the partial mounting ring of a mounting ring arrangement in the first blade mould and arranging the mounting ring segment of the mounting ring arrangement in the second blade mould; and (C) joining the first and second blade moulds such that the partial mounting ring and the mounting ring segment join to form a full mounting ring. | 01-07-2016 |
20160010658 | COMPOSITE AIRFOIL BONDED TO A METALLIC ROOT | 01-14-2016 |
20160017863 | BALSAWOOD CORES FOR COMPOSITE MATERIAL SANDWICH PANELS AND METHOD OF THEIR MANUFACTURE - A method of manufacturing a core for a composite material sandwich panel, the method comprising the steps of: providing a sheet of balsawood with opposite major surfaces, with vessels and axial parenchyma cells of the balsawood extending between the opposite major surfaces in a thickness direction of the sheet; coating a layer of a curable resin composition onto respective opposite major surfaces of the sheet of balsawood; and curing the curable resin composition, wherein the resin composition is applied and cured so that the coating layer of cured resin composition unevenly fills or only partly fills outermost ends of at least some of the vessels in the balsawood and thereby provides, at least in the vicinity of at least some of the vessels, a non-planar outer surface of the coating layer of the cured resin composition over the opposite major surfaces. | 01-21-2016 |
20160032939 | AIRFOIL STRUCTURES - An airfoil structure includes a composite core including a triaxial braid, wherein the triaxial braid includes a longitudinal axis, a first bias fiber extending in a first bias direction at a first bias angle to the longitudinal axis, a second bias fiber extending in a second bias direction at a second bias angle to the longitudinal axis, and an axial fiber extending in a direction parallel to the longitudinal axis. The airfoil structure further includes an outer layer substantially surrounding the composite core, wherein the outer layer includes a plurality of unidirectional prepreg layers. | 02-04-2016 |
20160052173 | A FIBRE PREFORM FOR LAYING ON A CURVED SURFACE OF A MOULD - A method for making a root section ( | 02-25-2016 |
20160053741 | WIND TURBINE BLADE ROOT AND PROCESS FOR MANUFACTURING A WIND TURBINE BLADE ROOT - A wind turbine blade root having: an annular structure extending about a main axis and made of a composite material including a matrix and reinforcing fibers; first longitudinal reinforcing elements, which are incorporated in the annular structure, extend in the direction of the main axis, and are spaced apart in a circle about the main axis; and an annular reinforcing element connecting the first longitudinal reinforcing elements and having first coupling portions for connection to the first longitudinal reinforcing elements. | 02-25-2016 |
20160076388 | FAN PLATFORM - A fan platform section may include a flow path portion with a plurality of composite plies. A first composite ply in the plurality of composite plies may include directional fibers. The directional fibers may be configured to prevent twisting of the flow path section in response to a centripetal load. The fan platform section may include a second composite ply in the plurality of composite plies. The second composite ply may include directional fibers. The directional fibers in the first composite ply may be orthogonal with respect to the directional fibers in the second composite ply. | 03-17-2016 |
20160076552 | COMPOSITE AIRFOIL STRUCTURES - An airfoil structure is presented. The airfoil structure includes an outer casing substantially surrounding a composite core. The composite core includes a plurality of fiber bands, each of the plurality of fiber bands is placed at a predetermined position and orientation at a time, wherein the plurality of fiber bands are interwoven in an in-plane and out-of-plane orientation by interleaving each of the plurality of fiber bands placed in a plane with one or more of the plurality of fiber bands of an adjacent plane to define an interleaved structure. A method for manufacturing an airfoil structure including the composite core is also presented. | 03-17-2016 |
20160082673 | ROTOR BLADE MANUFACTURING ARRANGEMENT - A manufacturing arrangement for the manufacture of a rotor blade, including a pair of tracks arranged along the longitudinal sides of a blade mold, a first gantry assembly realized to span the track pair and to carry a first tool arrangement including at least a fiber distributor for distributing fiber material into the blade mold, a second gantry assembly realized to span the track pair and to carry a second tool arrangement including at least a handling tool for handling a cover sheet for the fiber distributor, which cover sheet is realized to apply pressure to the distributed fiber material, and a control arrangement realized to effect a coordinated movement of the gantry assemblies along the track pair and to coordinate the operation of the second tool arrangement with the operation of the first tool arrangement, is provided. | 03-24-2016 |
20160107397 | ROTOR BLADE MANUFACTURING ARRANGEMENT - A manufacturing arrangement realized for manufacturing a rotor blade, including a pair of tracks arranged along the longitudinal sides of a blade mold; a first gantry assembly realized to span the track pair and to carry a first tool arrangement including at least a fiber distributor for distributing a fiber material into the blade mold; a second gantry assembly realized to span the track pair and to carry a second tool arrangement realized to carry a supply of fiber material and to provide the fiber material to the fiber distributor; and a control arrangement realized to effect a coordinated movement of the gantry assemblies along the track pair and to coordinate the operation of the second tool arrangement with the operation of the first tool arrangement is provided. A fiber mat magazine; a manufacturing line; a method of manufacturing a rotor blade; and a rotor blade, is also provided. | 04-21-2016 |
20160108741 | COMPOSITE COMPONENT - A composite component having a body formed from a plurality of fibre reinforced non-metallic layers. The body comprises a delamination region configured so as to permit delamination; and a deflector region configured so as to resist delamination. In the event of delamination, delamination is deflected to and continues to propagate in the delamination region. | 04-21-2016 |
20160146184 | METHODS OF MANUFACTURING ROTOR BLADE COMPONENTS FOR A WIND TURBINE - Methods of manufacturing rotor blade components for a wind turbine using pre-cured, prefabricated plates constructed of multiple fiber materials are disclosed. In one aspect of the present disclosure, the method includes providing a plurality of pultruded members. Each of the pultruded members includes, at least, first and second fiber materials, wherein the first and second fiber materials include at least one of different sizes or different types of fiber materials. Another step includes arranging the plurality of pultruded members into one or more layers. A further step includes joining the layers of pultruded members together to form the rotor blade component. | 05-26-2016 |
20160146185 | METHODS FOR MANUFACTURING A SPAR CAP FOR A WIND TURBINE ROTOR BLADE - Methods of manufacturing spar caps for a rotor blade of a wind turbine are disclosed. The method includes providing a plurality of pultrusions constructed of one or more fibers or fiber bundles cured via a resin material. Another step includes tapering the ends of the pultrusions at a predetermined angle. The method also includes arranging the tapered pultrusions in a mold of the spar cap. The method also includes joining the plurality of pultrusions together so as to form the spar cap. | 05-26-2016 |
20160177743 | COMPOSITE AIRFOIL FOR A GAS TURBINE ENGINE | 06-23-2016 |
20160177920 | Blade for a Wind Turbine and Wind Turbine Comprising Said Blade | 06-23-2016 |
20160177921 | WIND TURBINE ROTOR BLADE COMPONENTS AND METHODS OF MAKING SAME | 06-23-2016 |
20160186774 | PROCESS OF PRODUCING A THERMOPLASTIC-FIBER COMPOSITE AND FAN BLADES FORMED THEREFROM - A process for fabricating a thermoplastic-fiber composite includes heating a thermoplastic resin to a liquid state, unidirectionally orienting fibers, impregnating the fibers with the thermoplastic resin in the liquid state to produce composite laminae, and performing an automated machine lay-up process to produce a composite laminate comprising a plurality of the composite laminae. | 06-30-2016 |
20160376399 | IMPROVEMENTS IN OR RELATING TO FIBRE REINFORCED COMPOSITES - (57) Abstract: The present invention concerns a process for the production of wind turbine structures. In the process, a stack of prepregs is located inside a vacuum bag. Each of the prepregs comprises a mixture of fibrous reinforcement and from 20% to 85 wt % of an epoxy resin of EEW 150 to 1500 and containing from 0.5 to 10 wt % of a curing agent. The curing agent comprises a urea curing agent and an imidazole curing agent, and is free of dicyandiamide. The epoxy resin is cured by application of an externally applied temperature in the range 70° C. to 110° C. for a period of from 4 to 8 hours. | 12-29-2016 |
20220136394 | COMPOSITE FAN BLADE LEADING EDGE SHEATH WITH ENCAPSULATING EXTENSION - A metallic sheath for a composite fan blade includes a body comprising a leading edge portion configured to cover a leading edge of the blade; a top surface adjacent the leading edge; an extension portion proximate the top surface configured to cover a portion of a tip of the blade along an intermediate chord length; an encapsulation portion opposite the top surface configured to couple directly with the tip of the blade; a sheath suction side flank configured to overlap a suction side of the blade; a sheath pressure side flank opposite the suction side flank configured to overlap a pressure side of the blade; and an insulator coupled between the encapsulation portion and the tip of the blade. | 05-05-2022 |