Patent application number | Description | Published |
20100304084 | PROTECTIVE COATINGS WHICH PROVIDE EROSION RESISTANCE, AND RELATED ARTICLES AND METHODS - A coating composition is described, having a first coating layer which includes a metallic matrix in which metal carbide particles are dispersed; and a hard, dense second coating layer disposed over the first coating layer. The second coating layer is formed from a metal nitride-type material, and has an average roughness of less than about 80 micro-inches (Ra). Related articles and processes are also disclosed. | 12-02-2010 |
20100304181 | PROTECTIVE COATINGS WHICH PROVIDE EROSION RESISTANCE, AND RELATED ARTICLES AND METHODS - A coating composition is described, having a first coating layer which includes a nickel-chromium matrix in which metal carbide particles are dispersed; and a hard, dense second coating layer disposed over the first coating layer. The second coating layer is formed from a metal nitride-type material, and has an average roughness of less than about 80 micro-inches (Ra). Related articles and processes are also disclosed. | 12-02-2010 |
20110126673 | RHENIUM RECOVERY FROM SUPERALLOYS AND ASSOCIATED METHODS - A method of recovering rhenium from rhenium-containing superalloy scrap is provided. The superalloy is usually a nickel-based superalloy. The method includes the steps of forming an oxidation feedstock of flaky morphology of the superalloy scrap, and oxidizing the oxidation feedstock to convert rhenium into a volatile rhenium oxide. The flaky morphology of the oxidation feedstock is achieved by increasing the surface area of the superalloy scrap. | 06-02-2011 |
Patent application number | Description | Published |
20130277447 | METHOD AND SYSTEM TO CONTROL A FUEL INJECTOR - An injection system includes a plurality of actuators. Each of the actuators is configured to move one or more portions of a center body of the fuel injector. The system also includes a controller configured to control each of the plurality of actuators individually to change a flow rate or a direction of output of a mixture of fuel and air from an output of the center body of the fuel injector. | 10-24-2013 |
20130327055 | TRANSITION PIECE FOR A GAS TURBOMACHINE - A transition piece for a gas turbomachine includes a body having an outer surface and an inner surface that defines a flow duct, a plurality of openings that extend through the body, and an active control element provided at one or more of the plurality of openings. The active control element is configured and disposed to selectively establish a dimension of the one or more of the plurality of openings. | 12-12-2013 |
20130327061 | TURBOMACHINE BUCKET ASSEMBLY AND METHOD OF COOLING A TURBOMACHINE BUCKET ASSEMBLY - A turbomachine bucket assembly includes a rotor member including a body having a center portion and an outer edge portion joined by a web. The rotor member includes one or more cooling fluid conduit having a dimension, and an inlet arranged at the outer edge. A plurality of blades are provided on the rotor member and mechanically linked to the outer edge. Each of the plurality of blades includes an internal cooling passage that is fluidly connected to the one or more cooling fluid conduits. A cooling fluid control element is provided at each of the one or more cooling fluid conduits. The cooling fluid control element is configured and disposed to adjust the dimension of the one or more cooling fluid conduits to alter fluid flow into the plurality of blades. | 12-12-2013 |
20140178205 | JOINTS FOR CONNECTING BLADE SEGMENTS OF A WIND TURBINE ROTOR BLADE - Joints for connecting a first blade segment to a second blade segment of a wind turbine rotor blade include a first bolt comprising a first proximal end connected to the first blade segment and a first distal end connected to the second blade segment, a second bolt comprising a second proximal end connected to the first blade segment and a second distal end connected to the second blade segment, and a third bolt comprising a third proximal end connected to the first blade segment and a third distal end connected to the third blade segment. At least two of the first bolt, the second bolt and the third bolt differ in size, and a first distance between the first bolt and the second bolt is different than a second distance between the second bolt and the third bolt. | 06-26-2014 |
20150132138 | ROTOR BLADE FENCE FOR A WIND TURBINE - The present invention is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade extending from a blade root to a blade tip. The rotor blade has a pressure side surface and a suction side surface. The pressure side surface and the suction side surface each extend between a leading edge and a trailing edge. The assembly also includes a blade root extension configured to attach to one of the pressure side surface or the suction side surface of the rotor blade adjacent to the blade root. The blade root extension includes at least one blade fence and at least one airflow modifying element. The blade fence extends between a proximal end and a distal end in a chord-wise direction. The proximal end is configured to attach to the rotor blade such that the distal end remains free and spaced apart from the rotor blade. The airflow modifying element is configured at the proximal end of the blade fence. As such, the blade root extension is configured to improve aerodynamic performance of the rotor blade. | 05-14-2015 |
20150308501 | SPACER ASSEMBLY FOR A BEARING - The present subject matter is directed to a spacer assembly for a bearing of a wind turbine and/or a bearing assembly for a wind turbine. The bearing assembly includes an outer race, an inner race rotatable relative to the outer race, a plurality of roller elements positioned between the inner and outer race, and a plurality of load-bearing spacers configured between the roller elements. Each of the spacers includes a spacer portion and an extension portion. Thus, each of the spacers is arranged to contact adjacent spacers within the bearing assembly via the extension portion such that the extension portions of the spacers are configured to transfer loads experienced by the bearing assembly rather than the loads passing through the roller elements. | 10-29-2015 |
20160032892 | SYSTEM AND METHOD FOR CONTROLLING THE OPERATION OF WIND TURBINES - A method for controlling a wind farm includes: receiving temperature data associated with a plurality of locations along a sound path between the wind farm and a sound immission point from one or more sensors; estimating a propagation characteristic of the sound path based at least in part on the temperature data; predicting a noise level at the sound immission point based at least in part on the propagation characteristic; determining a control signal for one or more wind turbines in the wind farm based at least in part on the noise level; and using the control signal to control the one or more wind turbines. | 02-04-2016 |
Patent application number | Description | Published |
20110142623 | SYSTEM AND METHOD OF DISTRIBUTING AIR WITHIN A WIND TURBINE - An air distribution system for use with a wind turbine. The wind turbine includes a nacelle that is coupled to a tower and a rotor that is rotatably coupled to the nacelle with a rotor shaft. The rotor includes at least one rotor blade that is coupled to a hub. The air distribution system includes a conduit that is defined within the rotor shaft. The conduit provides flow communication between the nacelle and the rotor. An air-flow control assembly is coupled in flow communication with the conduit. The air-flow control assembly is configured to selectively channel air from the nacelle to the rotor and from the nacelle to ambient air. | 06-16-2011 |
20110142664 | VORTEX GENERATOR ASSEMBLY FOR USE WITH A WIND TURBINE ROTOR BLADE AND METHOD FOR ASSEMBLING A WIND TURBINE ROTOR BLADE - A method of manipulating a boundary layer across a wind turbine rotor blade. The method includes coupling at least one vortex generator to the rotor blade. The vortex generator includes at least one sidewall that extends outwardly a radial distance from an outer surface of the rotor blade. The vortex generator is selectively positionable between a first position and a second position. A control system calculates a condition of the boundary layer. The vortex generator is positioned at one of the first position and the second position based on the calculated condition of the boundary layer for moving the vortex generator between the first position and the second position. | 06-16-2011 |
20110142677 | WINGLET FOR WIND TURBINE ROTOR BLADE - A rotor blade for a wind turbine is disclosed. The rotor blade includes a root, a tip, and a body extending from the root, the body including a pressure side and a suction side extending between a leading edge and a trailing edge. The rotor blade further includes a winglet extending between the body and the tip, the winglet including a pressure side and a suction side extending between a leading edge and a trailing edge. The winglet further includes a transition section and defines a height, a sweep angle, an outboard cant angle, and a twist angle. The sweep angle, the outboard cant angle, and the twist angle change continuously throughout the transition section. | 06-16-2011 |
20110255974 | CONFIGURABLE WINGLET FOR WIND TURBINE BLADES - A wind turbine includes a plurality of rotor blades for converting wind energy to rotational energy. The rotor blades have winglets that are configurable. A sensor senses a parameter and generates a sensed signal indicative of the parameter. A processor receives the sensed signal for generates an actuator signal in response thereto. An actuator is associated with each of the winglets for configuring the winglets in response to the actuator signal. | 10-20-2011 |
20120134812 | APERTURE CONTROL SYSTEM FOR USE WITH A FLOW CONTROL SYSTEM - An active flow control system for use with a wind turbine is provided. The wind turbine includes at least one blade. The active flow control system includes an air distribution system at least partially defined within said at least one blade. The air distribution system includes at least one aperture defined through the at least one blade. An aperture control system is in operational control communication with the air distribution system. The aperture control system includes an actuator at least partially positioned within the at least one blade and configured to control a flow of air discharged through the at least one aperture. | 05-31-2012 |
20120141277 | Integrated Lightning Receptor System and Trailing Edge Noise Reducer for a Wind Turbine Rotor Blade - A rotor blade assembly for a wind turbine includes a rotor blade having a pressure side member, a suction side member, a leading edge, and a trailing edge extending between a tip and a root. An electrically conductive band extends longitudinally on either or both of the pressure side member and suction side member along the trailing edge. A plurality of electrically conductive noise reduction features extend from the trailing edge and are configured as individual lightning strike receptors. The noise reduction features are configured in conductive communication with the conductive band. | 06-07-2012 |
20130022442 | SYSTEM AND METHOD FOR OPERATING A TURBINE - A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance. | 01-24-2013 |
Patent application number | Description | Published |
20110150845 | METHODS AND COMPOSITIONS FOR MODULATING IMMUNOLOGICAL TOLERANCE - The invention provides compositions and methods for modulating immune responses using mesenchymal stem cells. The invention further provides methods for inducing tolerance to self antigens using mesenchymal stem cells. | 06-23-2011 |
20120177618 | HEMATOPOIETIC STROMAL PROGENITOR CELLS AND USES THEREOF - The invention provides compositions and methods for modulating disease using hematopoietic stromal progenitor cells derived from hematopoietic tissues. The invention further provides methods for isolating, storing and culturing hematopoietic stromal progenitor cells. | 07-12-2012 |
20120225130 | COMPOSITIONS, METHODS, AND DEVICES FOR TREATING LIVER DISEASE - Described are compositions and methods for treating liver disease, e.g., acute liver disease, using bone marrow-derived stem cells and bone marrow-derived stem cell conditioned media. | 09-06-2012 |
20150050298 | ISOLATION AND USE OF HUMAN LYMPHOID ORGAN-DERIVED SUPPRESSIVE STROMAL CELLS - A method for suppressing an immune response is provided. The method involves administration of isolated lymphoid tissue-derived suppressive stromal cells (LSSC) to a subject in need of such treatment in an amount effective to suppress the immune response in the subject. The invention also involves a method to isolate LSSC by digesting lymphoid tissue fragments using a combination of an enzyme mix and agitation and then collecting the LSSC. Pharmaceutical preparations comprising LSSC are also provided. | 02-19-2015 |