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| Number | Title | Issue Date |
| 8182233 | Component with a damping filler A component (10) and method for manufacturing a component. The component comprises first and second panels (16, 18) spaced apart from each other, the first panel (16) having at least one protrusion (20) extending therefrom towards the sec... | 05/22/2012 |
| 8172541 | Internally-damped airfoil and method therefor An airfoil component and method for producing the component. The component has root and airfoil portions, the latter having an airfoil tip and oppositely-disposed concave and convex surfaces that converge at leading and trailing edges of the airfoil portion. The air... | 05/08/2012 |
| 8167574 | Ceil fan blade assembly A ceil fan blade assembly includes an upper blade, a lower blade, and a decorative member enclosed between the upper and lower blades. The upper and lower blades are formed with engaging portions which are an engaging rib and en engaging groove to connect the upper ... | 05/01/2012 |
| 8133031 | Lightning protection device of windmill blade The present invention proposes a lightning protection device of a windmill blade, comprising a tip receptor assembly having receptors which are mounted, in particular to, the tip end part of the blade where the blade profile becomes smaller, and having a simple stru... | 03/13/2012 |
| 8109734 | Article formed from a composite material An article such as a fan blade of a turbofan engine comprises a core made up of components at least some of which comprise packs of rods embedded in a resin matrix material. The rods extend in the span-wise direction of the blade to resist centrifugal forces imposed... | 02/07/2012 |
| 8105045 | Wind turbine blade and method for manufacturing a wind turbine blade Wind turbine blade includes a first blade part and a second blade part, the blade parts being bonded by bonding means forming a bond. To reduce peel stresses of the bond and reduce the risk of crack formation, an edge portion of the bond is covered by a low elastic ... | 01/31/2012 |
| 8083489 | Hybrid structure fan blade A hybrid fan blade for a gas turbine engine is provided that includes an airfoil and a composite panel. The airfoil has a first side and a second side orientated opposite the first side. The first and second sides extend between a tip, a base, a leading edge and a t... | 12/27/2011 |
| 8075276 | Impeller and cooling fan incorporating the same A cooling fan includes a housing, a cover arranged on the housing, and an impeller received in a space formed between the housing and the cover. The impeller includes a hub and a plurality of blades extending radially and outwardly from the hub. Each of the blades i... | 12/13/2011 |
| 7988422 | Wind turbine blades with improved bond line A wind turbine blade includes an upper shell member and a lower shell member defining an internal cavity therebetween. The shell members are joined with a bond paste along bond lines at the leading edge and trailing edge of the blade. A seal member is disposed betwe... | 08/02/2011 |
| 7988423 | Wind turbine blade The invention relates to a wind turbine blade having at least one component formed of a fibrous composite material including two or more different types of carbon fibres having a different elastic modulus to each other. The proportions of the different types of fibr... | 08/02/2011 |
| 7927077 | Wind blade spar cap laminate repair A wind blade spar cap laminate repair for wind turbine rotor blades, a repair kit to repair spar cap laminate damage, and a method of repairing damage on wind turbine rotor blades is provided. The wind blade spar cap laminate repair includes a prepared surface, an a... | 04/19/2011 |
| 7857596 | Vane or rotor blade An unmixed plastic sheet, which is made of a thermoplastic material and which is composed of a number of body segments that are adjacent to one another in a plane, interconnected and made of a closed-cell foam material. The body segments are thermoplastically welded... | 12/28/2010 |
| 7811063 | Damping element for a wind turbine rotor blade A damping element for a wind turbine rotor blade is provided, the damping element comprising a laminate material made of at least one viscoelastic layer and at least one stiff layer adhered to said viscoelastic layer, wherein the damping element is adapted to be att... | 10/12/2010 |
| 7753654 | Aerofoils for gas turbine engines An aerofoil 26 for a gas turbine engine (10, FIG. 1) comprises a cavity 38, a cellular material 42 located in the cavity 38 for stiffening the aerofoil 26, and a vibration damping medium 44 located in the cavit... | 07/13/2010 |
| 7654799 | Modular rotor blade for a wind turbine and method for assembling same A sectional wind turbine rotor blade is provided, the sectional wind turbine rotor blade having first and second blade sections, wherein the first and second blade sections are fixedly mountable to each other via a connector. Furthermore, a method for assembling a s... | 02/02/2010 |
| 7625185 | Bearing structure The present invention concerns a bearing structure for a composite structure rotor blade having fiber strands which extend along the length of the rotor blade. Prefabricated, stiff components are provided in the composite structure. The invention further concerns a ... | 12/01/2009 |
| 7503752 | Wind turbine blade The invention relates to a wind turbine blade comprising a number of pre-fabricated strips arranged in a sequence along the outer periphery. The strips consist of a fibrous composite material, preferably carbon fibers, and consist of a wooden material, preferably pl... | 03/17/2009 |
| 7442010 | Impeller, in particular for an axial fan An impeller for an axial fan of the type adapted to be pressed onto a rotating rotor comprising a number of blades. The blades protrude radially outward from a substantially tubular hub, which carries the blades and is adapted to be pressed onto the rotating rotor. ... | 10/28/2008 |
| 7419363 | Turbine blade with ceramic tip A blade used in a gas turbine engine in which the blade is formed of a blade portion made from a metallic material, and a tip portion made of a ceramic material, the tip portion forming at least 10% of the overall blade length such that the blade is lighter than a a... | 09/02/2008 |
| 7374404 | Methods and apparatus for gas turbine engines A method for assembling a turbine engine to facilitate preventing ice accumulation on the turbine engine during engine operation, the gas turbine engine including a fan assembly. The method includes coupling a plurality of fan blades to a fan rotor, and applying a p... | 05/20/2008 |
| 7364407 | Transition zone in wind turbine blade The invention relates to a wind turbine blade and a transitional shell blank for the manufacture of the shell of a wind turbine blade, the blade or the transitional shell blank being made of fibre-reinforced polymer including a first type of fibres (1, 3, 6) ... | 04/29/2008 |
| 7364801 | Turbine component protected with environmental coating An environmental coating suitable for use on turbine components, such as turbine disks and turbine seal elements, formed of alloys susceptible to oxidation and hot corrosion. The environmental coating is predominantly a solid solution phase of nickel, iron, and/or c... | 04/29/2008 |
| 7334989 | Method for producing a rotor blade, a corresponding rotor blade and a wind power plant The invention relates to a process for producing a rotor blade for a wind power system, wherein at least two rotor blade elements are arranged one behind the other in a longitudinal direction of the rotor blade and are glued together via at least one, preferably at ... | 02/26/2008 |
| 7334998 | Low-noise fan exit guide vanes Low-noise fan exit guide vanes are disclosed. According to the present invention a fan exit guide vane has an outer shell substantially shaped as an airfoil and defining an interior cavity. A porous portion of the outer shell allows communication between the fluctua... | 02/26/2008 |
| 7322798 | High structural efficiency blades and devices using same A blade for a rotor has integral stiffeners with at least one of unidirectional caps configured to carry blade bending loads in axial tension or webs to carry transverse shear resulting from blade bending. ... | 01/29/2008 |
| 7300256 | Damping arrangement for a blade of an axial turbine A damping arrangement for a blade (20) of an axial turbine, in particular a gas turbine, includes a damping element (17) which is arranged in a recess (16) in the blade aerofoil (10) of the blade (20) and frictionally dampens the v... | 11/27/2007 |
| 7300255 | Laminated turbomachine airfoil with jacket and method of making the airfoil An improvement for a turbomachinery blade having an airfoil portion, a neck portion, and a root portion, the neck portion extending from the root portion, and the airfoil portion extending from the neck portion, and the root portion being tear-drop shaped, includes ... | 11/27/2007 |
| 7296977 | Damping material, damping arrangement and method for designing a damping arrangement A laminate material for damping a vibrational mode of a structure is provided, the laminate material comprising a viscoelastic layer and a stiff constrained layer adhered to the viscoelastic layer, wherein the viscoelastic layer is elastomer based and the constraine... | 11/20/2007 |
| 7292938 | Position locating system, terminal device, control method for terminal device, control program for terminal device, and computer readable record medium storing control program for terminal device therein A terminal device 50 includes aid-information acquisition device to acquire aid information 154 from an information providing apparatus, an information-providing-apparatus-sort judgment device to judge the type of information providing apparatus on the... | 11/06/2007 |
| 7278830 | Composite filled gas turbine engine blade with gas film damper A gas turbine engine blade comprises a housing, a composite core located within the housing, and a gas damper located within the housing for damping vibration of the blade. ... | 10/09/2007 |
| 7275915 | Reinforced ceiling fan blade A reinforced ceiling fan blade in accordance with the present invention comprises an upper half fan blade and a lower half fan blade. The upper half fan blade includes a plurality of wood sheets. The lower half fan blade includes a plurality of wood sheets, and the ... | 10/02/2007 |
| 7255535 | Cooling systems for stacked laminate CMC vane Embodiments of the invention relate to various cooling systems for a turbine vane made of stacked ceramic matrix composite (CMC) laminates. Each airfoil-shaped laminate has an in-plane direction and a through thickness direction substantially normal to the in-plane ... | 08/14/2007 |
| 7249935 | Lightning protection means for a wind turbine A lightning protection device which is capable of avoiding electrical current, which is being induced in the blades of wind turbine, from being passed to parts of the wind turbine that may be damaged or destroyed by the electrical current. The electrical current is ... | 07/31/2007 |
| 7247003 | Stacked lamellate assembly A stacked ceramic matrix composite lamellate assembly (10) including shear force bearing structures (48) for resisting relative sliding movement between adjacent lamellae. The shear force bearing structures may take the form of a cross-lamellar stitch ... | 07/24/2007 |
| 7247002 | Lamellate CMC structure with interlock to metallic support structure A component (10) for a gas turbine engine formed of a stacked plurality of ceramic matrix composite (CMC) lamellae (12) supported by a metal support structure (20). Individual lamellae are supported directly by the support structure via cooperat... | 07/24/2007 |
| 7248955 | Vehicle accessory proximity sensor slide switch A method is provided for operating a proximity sensing unit for controlling an accessory device of a vehicle. A plurality of proximity sensors is disposed in a sequential pattern within a sensing unit whereby the proximity sensors are responsive to a manual activati... | 07/24/2007 |
| 7198471 | Wind turbine blade The invention relates to a wind turbine blade comprising a number of pre-fabricated strips arranged in a sequence along the outer periphery. The strips consist of a fibrous composite material, preferably carbon fibres, and consist of a wooden material, preferably pl... | 04/03/2007 |
| 7198858 | Method of vibration damping in metallic articles A metal is used as a predominant component of an outermost metallic portion of a ceramic-containing and metal-containing vibration damping coating for a metallic article, for the purpose of enhancing resistance of the coating to foreign object damage and/or erosion ... | 04/03/2007 |
| 7198458 | Fail safe cooling system for turbine vanes Embodiments of the invention relate to a turbine vane having a fail safe cooling system. According to embodiments of the invention, the vane can have multiple concentric layers of radial cooling holes extending about the vane; each layer being fluidly connected to t... | 04/03/2007 |
| 7186092 | Airfoil having improved impact and erosion resistance and method for preparing same A turbine airfoil having an improved impact and erosion resistance. The airfoil comprises: (a) a base segment having an impact resistant leading edge section proximate to the leading edge comprising a material having having a yield strength of least about 250 ksi an... | 03/06/2007 |
