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| Number | Title | Issue Date |
| 8167569 | Structure and method for self-aligning rotor blade joints An inventive self-aligning blade joint structure is provided to facilitate assembly and clamping of wind turbine blade sections carried on a transporter. The blade joint structure includes alignment pins on one end bulkhead of a blade body section at the joint and c... | 05/01/2012 |
| 8137073 | Composite turbomachine blade with metal reinforcement The invention relates to a turbomachine blade comprising an aerodynamic surface made of a composite material and extending in a first direction between a leading edge and a trailing edge, and in a second direction between a root and a tip of the blade. The blade inc... | 03/20/2012 |
| 8113787 | Turbomachine blade with erosion and corrosion protective coating and method of manufacturing A turbomachine blade (1) includes a blade body (2) and a corrosion and erosion protective multilayered coating (11) bonded thereto, the multilayered coating (11) including an erosion resistant first layer (3) at least covering a co... | 02/14/2012 |
| 8100660 | Wind turbine blade load sensor A wind turbine rotor blade root load sensor includes an insert secured within a root portion of a wind turbine rotor blade and including an internal bore. The sensor also includes a carrier member fixedly connected to the internal bore of the insert so that loads ca... | 01/24/2012 |
| 8092187 | Flatback insert for turbine blades A blade for the use in the generation of power has a leading edge and a trailing edge. A first shell portion of the blade extends from the leading edge to the trailing edge. A second shell portion of the blade also extends from the leading edge to the trailing edge.... | 01/10/2012 |
| 8083488 | Blade extension for rotor blade in wind turbine A rotor blade assembly is disclosed. The rotor blade assembly includes a rotor blade and a blade extension. The rotor blade has a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade further has an ae... | 12/27/2011 |
| 8070450 | High temperature turbine rotor blade A turbine rotor blade made from the spar and shell construction in which the shell formed from a plurality of shell segments each being a thin wall shell segment made from a high temperature resistant material that is formed by a wire EDM process, and where the shel... | 12/06/2011 |
| 8057189 | Wind turbine blade with modular leading edge A wind turbine blade has a leading edge and a trailing edge and includes an upper shell member and a lower shell member. The shell members include transversely spaced attachment edge that are spaced rearward of the leading edge. A preformed bond cap having opposite ... | 11/15/2011 |
| 8043065 | Wind turbine blade with prefabricated leading edge segments A wind turbine rotor blade includes first and second shell components joined together at a trailing edge of the blade. Each shell component includes a forward edge. At least one leading edge segment is joined to the shell components and aligned along a longitudinal ... | 10/25/2011 |
| 8043066 | Trailing edge bonding cap for wind turbine rotor blades A trailing edge bonding cap for use with a rotor blade of a wind turbine is disclosed. The trailing edge bonding cap may include a body projecting outwardly from a blade shell of the rotor blade. The body may have a first outer surface and a second outer surface. Th... | 10/25/2011 |
| 8038407 | Wind turbine blade with improved trailing edge bond A wind turbine blade includes a leading edge and a trailing edge. The blade has an upper shell member and a lower shell member, with each of the shell members having a forward edge bonded at the leading edge of the blade and a rearward edge. A rigid bond cap is pre-... | 10/18/2011 |
| 8021120 | Turbine blade with a cover plate and a protective layer applied to the cover plate The invention relates to a turbine blade with a cover plate shaped onto the pan of the blade. The aim of the invention is to provide a turbine blade of this type that, while having a high level of efficiency, is designed for a particularly reliable and safe operatio... | 09/20/2011 |
| 8007242 | High temperature turbine rotor blade A turbine rotor blade made from the spar and shell construction in which the shell is a thin wall shell made from a high temperature resistant material that is formed by a wire EDM process, and where the shell is secured to the spar using a retainer that is poured i... | 08/30/2011 |
| 7988421 | Retrofit sleeve for wind turbine blade A wind turbine blade includes a body having a first surface characteristic; and a sleeve, arranged on the body, having a second surface characteristic which is different from the first surface characteristic. ... | 08/02/2011 |
| 7931443 | High twist composite blade A turbomachine with a row of blades in which the blades are structured such that the blades can untwist at higher rotational speeds in order to provide optimal aerodynamics at different rotational speeds. Each blade is formed with a thin slot between the pressure si... | 04/26/2011 |
| 7922454 | Joint design for rotor blade segments of a wind turbine A blade segment of a rotor blade assembly formed from two or more blade segments is disclosed. The blade segment may generally include a body shell and a shear web extending longitudinally within the body shell. The shear web may be disposed between opposed spar cap... | 04/12/2011 |
| 7841834 | Method and leading edge replacement insert for repairing a turbine engine blade A replaceable leading edge insert for a rotor blade and a process for replacing a damaged leading edge portion of a blade on an integrally bladed rotor. The insert is a fibrous reinforced composite insert with a scarf joint to secure the insert to the blade. The ins... | 11/30/2010 |
| 7837446 | Composite blade A composite blade (28) comprises a root portion (38) and an aerofoil portion (40). The aerofoil portion (40) has a tip (50) remote from the root portion (38). The aerofoil portion (40) has a leading edge (42), ... | 11/23/2010 |
| 7828526 | Metallic blade having a composite inlay A blade is disclosed. The blade includes a metallic base comprising an airfoil, a section of the airfoil comprising a recess within a surface of the airfoil, and a composite inlay disposed within and bonded to the recess. ... | 11/09/2010 |
| 7789630 | Airfoil and method for protecting airfoil leading edge An airfoil is disclosed having a concave pressure side and a convex suction side defining a chord length, and a leading edge and a trailing edge. A leading edge protective strip is adhered by a bond layer to and protectively covers the leading edge and respective pr... | 09/07/2010 |
| 7771173 | Main rotor blade with removable tip cap A main rotor blade assembly includes a tip cap removably mountable to an outboard end section of a forward tip spar section and an aft tip spar section. ... | 08/10/2010 |
| 7762784 | Insertable impingement rib An insertable impingement rib assembly inside of a turbine vane. The turbine vane has an airfoil portion with a leading edge and a trailing edge. The turbine vane has an inner diameter platform and an outer diameter platform. A guide channel is located in the airfoi... | 07/27/2010 |
| 7758312 | Main rotor blade with integral tip section A main rotor blade assembly includes a tip spar which defines a tip spar non-straight form, an upper blade skin which defines an upper blade skin non-straight form adjacent to the tip spar non-straight form and a lower blade skin which defines a lower blade skin non... | 07/20/2010 |
| 7753653 | Composite inlet guide vane A composite vane includes an airfoil portion having an inner core composed primarily of fiberglass epoxy; a carbon epoxy fabric located outward of the inner core; a relatively thin layer of fiberglass epoxy, and an outer metal sheath. ... | 07/13/2010 |
| 7736130 | Airfoil and method for protecting airfoil leading edge An airfoil is disclosed having a concave pressure side and a convex suction side defining a chord length, and a leading edge and a trailing edge. A leading edge protective strip is adhered by a bond layer to and protectively covers the leading edge and respective pr... | 06/15/2010 |
| 7704049 | TBC attachment construction for a cooled turbine airfoil and method of forming a TBC covered airfoil A TBC covered substrate, such as an airfoil used in a gas turbine engine, the substrate has a plurality of open cells formed thereon with the cell walls being formed by ribs arranged to form substantially rectangular shaped cells. The walls or ribs or the cells have... | 04/27/2010 |
| 7637721 | Methods and apparatus for producing wind energy with reduced wind turbine noise A trailing edge cap for a blade includes a body configured to mount on at least two differently at least one of sized and shaped blades such that the body at least partially covers an original trailing edge portion of the blade. The body has a body edge portion for ... | 12/29/2009 |
| 7600977 | Turbine blade tip cap A method of manufacturing a turbine blade includes (a) supporting a turbine blade internal core support at opposite ends such that radially inner and outer ends of the turbine blade remain open during casting; (b) casting the blade including the airfoil portion, whe... | 10/13/2009 |
| 7556477 | Bi-layer tip cap A tip cap for use in a turbine bucket. The tip cap may include a shield of an oxidant resistant material and a cap positioned within the shield of a high strength material. ... | 07/07/2009 |
| 7425115 | Thermal turbomachine A thermal turbomachine is disclosed having at least one row of rotor blades. At least one first rotor blade has a greater radial length than the others and at the blade tip is equipped with a first abrasive layer. At least one rotor blade which has a shorter radial ... | 09/16/2008 |
| 7410342 | Airfoil support A blade or a vane preferably used in a gas turbine engine, the blade or vane being formed of a metallic core or insert with a ceramic airfoil surface bonded to the metallic insert. The insert includes a series of concave and convex portions arranged along the outer ... | 08/12/2008 |
| 7399162 | Wind turbine A fluid turbine, such as a wind or hydro turbine, for generating electrical power, the turbine having a rotor assembly comprising a hub, a rim and a plurality of tensioned cable members joining them together, the cable members being grouped into sets to define a plu... | 07/15/2008 |
| 7393183 | Trailing edge attachment for composite airfoil A trailing edge attachment for a composite turbine airfoil. The trailing edge attachment may include an attachment device for attaching the trailing edge attachment to the airfoil. The attachment device may include a plurality of pins extending through the attachmen... | 07/01/2008 |
| 7370787 | Compressor rotor and method for making A method an apparatus for a gas turbine compressor rotor is provided which offers improved characteristics to the rotor when used with at least titanium IMI 834. Mechanical work is optimized through forging to provide at least improved low cycle fatigue life to the ... | 05/13/2008 |
| 7371426 | Method for repairing components using environmental bond coatings and resultant repaired components According to an embodiment of the invention, a repaired component is disclosed. The repaired component comprises an engine run component having a base metal substrate, a portion of the base metal substrate between about 1-3 mils in thickness and an overlying bond co... | 05/13/2008 |
| 7334997 | Hybrid blisk A rotor assembly or “blisk” for a gas turbine engine includes a metallic hub having an annular flowpath surface, and at least one blade extending outwardly from the flowpath surface. The blade includes a metallic body having a first density. The metallic body de... | 02/26/2008 |
| 7329102 | Blade With regard to hollow blades for turbine engines, it will be understood there is a problem with respect to percussive impact resulting in excessive distortion of the blade as well as potential failure as a result of blade tip bulging. By provision of ridges 107, ... | 02/12/2008 |
| 7322796 | Turbine vane construction A method for forming a component for use in a gas turbine engine, such as a turbine vane construction is provided. The method broadly comprises the steps of: forming a first aerodynamic structure having a first platform with a leading edge and a trailing edge, and a... | 01/29/2008 |
| 7318701 | Ceiling fan lighting system A ceiling fan lighting system includes a ceiling fan having motor and a plurality of blades operationally coupled to the motor to permit rotation of the blades when the motor is supplied with power. A plurality of mounting assemblies engages at least two of the blad... | 01/15/2008 |
| 7316724 | Multi-scale cermets for high temperature erosion-corrosion service A cermet composition represented by the formula (PQ)(RS)X comprising: a ceramic phase (PQ), a binder phase (RS) and X wherein X is at least one member selected from the group consisting of an oxide dispersoid E, an intermetallic compound F and a derivative compound ... | 01/08/2008 |
