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| Number | Title | Issue Date |
| 7972112 | Systems and methods for determining the angular position of a wind turbine rotor Certain embodiments of the invention may include systems and methods for determining an angular position of a wind turbine rotor. According to an exemplary embodiment of the invention, the method for determining an angular position of a wind turbine may include meas... | 07/05/2011 |
| 7896610 | Three-dimensionally vibration-preventing buffering mechanism A three-dimensionally vibration-preventing buffering mechanism is proposed, which is designed for use in conjunction with a dynamic module for the purpose of buffering the three dimensional vibrations of the dynamic module during operation, and which is characterize... | 03/01/2011 |
| 7871240 | Helical spring damper A damped spring assembly includes a helical spring. The helical spring is movable along an axis and has a winding direction. A damper is movable along the axis and includes a helical shape. The damper is wound in a direction opposite the winding direction. The dampe... | 01/18/2011 |
| 7837431 | Impeller and sewage treatment pump including the same In an impeller 11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet 29 is formed in the lower part of the inlet portion, and an outlet is formed in the side face o... | 11/23/2010 |
| 7828521 | Turbine module for a gas-turbine engine A turbine module for a gas turbine engine includes at least an annular distributor and a turbine rotor inside a casing, where the annular distributor includes a plurality of elements in the form of a ring sector, of which a first part supports fixed blades positione... | 11/09/2010 |
| 7824156 | Cooled component of a fluid-flow machine, method of casting a cooled component, and a gas turbine A cooled component of a fluid-flow machine, through which a hot working medium flows, in particular a turbine blade of a gas turbine, in whose outer wall, to which the working medium can be applied, a cooling passage is provided, through which a cooling fluid can fl... | 11/02/2010 |
| 7789618 | Systems for moisture removal in steam turbine engines A system in a steam turbine for removing water droplets from the flowpath of a steam turbine that may include a groove for collecting water droplets, and a plurality of moisture removal holes originating within the groove. The groove may run in a circumferential man... | 09/07/2010 |
| 7462015 | Rotocraft rotor with hinged blades and lockable retractable flapping abutments A rotorcraft rotor with hinged blades, includes: a hub; a plurality of blades hinged to flap relative to the hub; bottom abutments of the hub, and bottom abutments of the blades suitable for co-operating with the bottom abutments of the hub; and top abutments of the... | 12/09/2008 |
| 7462013 | Blower without freezing lock phenomenon and heat exchanging device comprising the blower The discharge water means (1m) is provided within an area equal to or more than an area of the shroud extending to 20 degree points in both directions from a center that is a lowest portion of the ring portion (1h). Due to this, if water ... | 12/09/2008 |
| 7458768 | Borescope inspection port device for gas turbine engine and gas turbine engine using same An adapter to permit borescope access inside a gas turbine engine including a compressor stator having a plurality of compressor stator segments comprises a body portion defining a bore extending longitudinally therethrough from a first end to be disposed adjacent t... | 12/02/2008 |
| 7458776 | Wind turbine yawing system, wind turbine and yawing process A yawing system for a wind turbine, the wind turbine comprising a tower fixed to the ground and a frame (1) housing an electric power generator, the tower and the frame (1) being joined by the yawing system which allows the orientation of the frame ( | 12/02/2008 |
| 7455505 | Device for the demounting of blades of a turbine or of a compressor A device (10) for the demounting of blades (12), which are pushed in with a blade root (20) on a wheel disk (14) of a blade wheel (16) of a turbine or of a compressor, is designed with a support (24) which is designed to be ... | 11/25/2008 |
| 7455502 | Axial fan Described is an axial fan in which an impeller (1) comprises a hub (2), motor-powered so that it rotates about its own central axis (3) and a plurality of blades (5) extending from the hub (2) in directions transversal to the hub (... | 11/25/2008 |
| 7452181 | Plant facility A plant facility in which lubricant supply equipment for supplying a lubricant to rotor bearings and a speed reducer can be dispensed with. The plant facility comprises a gas turbine rotor of a gas turbine that serves as a prime mover driven by expansion work of a w... | 11/18/2008 |
| 7448848 | Variable vane arm/unison ring attachment system An attachment system for use with a variable incidence vane is disclosed. The attachment system includes a vane arm for joining a unison ring to a vane spindle. The vane arm has an arm portion and a bushing connected to the arm portion. The attachment system further... | 11/11/2008 |
| 7448855 | Droop stop mechanism for helicopter rotor blade A droop stop mechanism for a helicopter rotor blade includes a pair of opposing stops disposed on opposite sides of the blade's flap hinge. An interposer is mounted at the end of an arm on a rotatable shaft for rotation in a plane perpendicular to the hinge. A torsi... | 11/11/2008 |
| 7448845 | Gas turbine engine A turbofan gas turbine engine (10) comprises a fan rotor and a compressor rotor (62). The fan rotor (24) carries a plurality of circumferentially spaced radially outwardly extending fan blades (26). The compressor rotor carries a pluralit... | 11/11/2008 |
| 7448844 | Blisk having partially cut blade attachment An integrally bladed rotor disk, commonly referred to as an IBR or a blisk, includes partial cuts in the rotor disk extending from the rotor disk surface and along side the blades to form a partial root portion below each blade. A damaged blade can be removed from t... | 11/11/2008 |
| 7445427 | Variable stator vane assembly and bushing thereof A variable stator vane assembly and a bushing thereof. The bushing includes a metal bushing body and a wear-resistant coating. The assembly includes a rotatable trunnion and a first metal bushing. The trunnion is capable of being located in a through hole extending ... | 11/04/2008 |
| 7445424 | Passive thermostatic bypass flow control for a brush seal application In a gas turbine engine having a rim cavity formed between a rotor disk and a stator, and a brush seal or other seal member providing an airflow seal between the stator and a side plate of the rotor disk, a thermally responsive valve device is located in the bypass ... | 11/04/2008 |
| 7445431 | Method of controlling aerodynamic load of a wind turbine based on local blade flow measurement The present invention relates to a method of controlling the aerodynamic load of a wind turbine's blades individually in such a way that the dynamic aerodynamic loads on the turbine are reduced and power production is optimised. In general the present invention will... | 11/04/2008 |
| 7445426 | Guide vane outer shroud bias arrangement A compressor includes a stator having a plurality of vane sectors each with an outer shroud having a forward and a rearward guide vane extending there form, the vane sector being mounted in an annular slot of the casing, the guide vanes forming a gap between the tip... | 11/04/2008 |
| 7442009 | Driving device for raising or lowering an airfoil A wind turbine assembly with a driving device for raising and lowering a wind turbine between a lower end and an upper end of a wind turbine tower comprises a guide member extending longitudinally along the outer surface of the tower, a sleeve member coupled to the ... | 10/28/2008 |
| 7442002 | Tidal turbine installation An apparatus for generating electric power in freely flowing rivers includes a housing formed of an outside housing (6) and an inside housing (7) having an outlet (10) formed as a suction pipe, with cavities (17) being provided between th... | 10/28/2008 |
| 7438531 | Fan and rotor structure thereof A fan and a rotor structure thereof. The rotor structure has a case, an upper linking structure, a lower structure, and a rotating shaft. The case has an opening at the axle center. The upper linking structure has a fixing portion and a threaded portion. The minimum... | 10/21/2008 |
| 7438529 | Compressor and turbine wheel for a secondary air feed device In a compressor and turbine wheel for a secondary air feed device formed as a single component, a rotor which includes a center disc structure consisting of at least two discs of different materials is provided at one side with compressor blades and on the opposite ... | 10/21/2008 |
| 7438527 | Airfoil trailing edge cooling A turbine airfoil includes a span wise extending cavity formed from a ceramic mold and a slot extending from the cooling air cavity to a trailing edge being formed by a refractory metal core. The refractory metal core facilitates the reduction in the size of the slo... | 10/21/2008 |
| 7438525 | Fan housing A fan housing and a fan have stationary blades for guiding airflow. Each stationary blade has at least one airflow-guiding element extending therefrom along the circumference of the fan. The side wall of the airflow-guiding element changes the direction of the airfl... | 10/21/2008 |
| 7435057 | Blade for wind turbine A blade for a wind turbine includes a device for causing air at an increased velocity and/or pressure to escape from exit openings in the blade, thereby to apply a force. Pressure and diameter adjustable valves may be provided at each exit opening or orifice to allo... | 10/14/2008 |
| 7435056 | Leading edge erosion protection for composite stator vanes The present invention provides a turbofan engine including leading edge erosion protection for composite stator vanes contained therein. The composite stator vanes are defined by a leading edge, a trailing edge, a concave surface and a convex surface. The vanes are ... | 10/14/2008 |
| 7435051 | Multi-stage blower A blower is formed with multiple sets of rotatable rings of blades coupled to each other. Multiple inlet rings are correspondingly coupled to the multiple sets of rotatable rings of blades. In one embodiment, the blades may be forward facing blades and include a vol... | 10/14/2008 |
| 7434313 | Method for repairing a turbine engine vane assembly and repaired assembly A repaired turbine engine stationary vane assembly, including at least one airfoil bonded between inner and outer bands, is provided by a method of providing first and second vane assembly members bonded at respective circumferential edges, for example by brazing or... | 10/14/2008 |
| 7435053 | Turbine blade cooling system having multiple serpentine trailing edge cooling channels A cooling system for a turbine blade of a turbine engine having multiple serpentine trailing edge cooling channels in parallel. The serpentine cooling channels are positioned proximate to a trailing edge of the turbine blade and facilitate increased heat removal wit... | 10/14/2008 |
| 7435050 | Split flange V-groove and anti-rotation mating system There is provided a turbine engine component, such as a duct pipe, comprising an annular flange, at least one element, such as two duct pipe halfs, to be mated to the flange, and mating system for joining the at least one element to the flange. The mating system inc... | 10/14/2008 |
| 7435058 | Ceramic matrix composite vane with chordwise stiffener A means (22) for structurally stiffening or reinforcing a ceramic matrix composite (CMC) gas turbine component, such as an airfoil-shaped component, is provided. This structural stiffening or reinforcing of the airfoil allows for reducing bending stress that ... | 10/14/2008 |
| 7435054 | System and method for mechanical mounting of a device onto a shaft A mechanical mount axially and radially secures a device, such as a fan, to a shaft of a motor without a need for setscrews or keyways. Elimination of a keyway and setscrew for securing a fan to a motor shaft minimizes stress that the fan is subjected to during its ... | 10/14/2008 |
| 7431560 | Turbine housing of an exhaust gas turbocharger with adjustable turbine geometry A turbine housing of an exhaust gas turbocharger having an adjustable turbine geometry is provided having a carrier ring on which are mounted adjustable guide vanes for regulating the boost pressure and having a cover ring for the guide vanes, whereby the carrier ri... | 10/07/2008 |
| 7430802 | Labyrinth seal in a stationary gas turbine The invention relates to a segmented inner ring for holding guide blades. According to the invention, a lateral wall opposing the front side of the inner ring and pertaining to a shaft shoulder formed on the rotor shaft extends radially, and respectively one half of... | 10/07/2008 |
| 7431561 | Method and apparatus for cooling gas turbine rotor blades Methods and apparatus for cooling gas turbine rotor blades is provided. The blade includes an airfoil having an internal three pass serpentine cooling circuit having radially extending first, second, and third serpentine cooling cavities partially separated by, in a... | 10/07/2008 |
| 7427186 | Rotary engine with shaft bearing having two stiffnesses, rotary engine shaft and means of connection between a rotary engine shaft and a bearing A shaft mounted to rotate with respect to another fixed or rotary element of a rotary engine to which the shaft is connected by at least one bearing, it being possible for the engine to operate in at least two different operating speeds, the shaft comprising a conne... | 09/23/2008 |
