Patent application number | Description | Published |
20120102916 | Pulse Detonation Combustor Including Combustion Chamber Cooling Assembly - A pulse detonation combustor including a combustion chamber and a cooling assembly circumscribing the combustion chamber. The cooling assembly is configured to provide a flow of cooling fluid therethrough and provide cooling of the combustion chamber. The cooling assembly includes a cooling flow sleeve positioned about the combustion chamber. The cooling flow sleeve includes a plurality of circumferentially spaced apart axially extending structural members defining a plurality of flow passages therebetween. The cooling assembly is configured mechanically and thermally separate from the combustion chamber and provides axisymmetric cooling to the combustion chamber. | 05-03-2012 |
20120111015 | SELF-OSCILLATING FUEL INJECTION JETS - A combustor structure includes a combustor fuel-air mixing apparatus having a mainstream airflow region. One or more concavities are disposed within the mainstream airflow region of the fuel-air mixing apparatus. At least one fuel injection hole is disposed within an upstream base region of at least one concavity. Passing a stream of air through the main airflow region causes fuel injected into the upstream base region of at least one concavity to passively mix with a naturally oscillating vortex of air within the concavity. | 05-10-2012 |
20120111545 | COMPONENTS WITH RE-ENTRANT SHAPED COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of fabricating a component is provided. The method includes forming one or more grooves in a surface of a substrate, where the substrate has at least one hollow interior space. Each of the one or more grooves extends at least partially along the substrate surface and has a base and a top. The base is wider than the top, such that each of the one or more grooves comprises a re-entrant shaped groove. The method further includes forming one or more access holes through the base of a respective groove, to connect the groove in fluid communication with respective ones of the hollow interior space(s), and disposing a coating over at least a portion of the substrate surface. The one or more grooves and coating define one or more re-entrant shaped channels for cooling the component. A component with one or more re-entrant shaped channels and a method of coating a component are also provided. | 05-10-2012 |
20120114868 | METHOD OF FABRICATING A COMPONENT USING A FUGITIVE COATING - A method of fabricating a component is provided. The method includes depositing a fugitive coating on a surface of a substrate, where the substrate has at least one hollow interior space. The method further includes machining the substrate through the fugitive coating to form one or more grooves in the surface of the substrate. Each of the one or more grooves has a base and extends at least partially along the surface of the substrate. The method further includes forming one or more access holes through the base of a respective one of the one or more grooves to connect the respective groove in fluid communication with the respective hollow interior space. The method further includes filling the one or more grooves with a filler, removing the fugitive coating, disposing a coating over at least a portion of the surface of the substrate, and removing the filler from the one or more grooves, such that the one or more grooves and the coating together define a number of channels for cooling the component. | 05-10-2012 |
20120114912 | COMPONENT AND METHODS OF FABRICATING AND COATING A COMPONENT - A component is disclosed. The component comprises a substrate comprising an outer surface and an inner surface, where the inner surface defines at least one hollow, interior space, where the outer surface defines one or more grooves, and where each of the one or more grooves extends at least partially along the surface of the substrate and has a base. One or more access holes extend through the base of a respective groove to place the groove in fluid communication with respective ones of the at least one hollow interior space. The component further comprises a coating disposed over at least a portion of the substrate surface, where the coating comprises one or more layers. At least one of the layers defines one or more permeable slots, such that the respective layer does not completely bridge each of the one or more grooves. The grooves and the coating together define one or more channels for cooling the component. Methods for fabricating and coating a component are also provided. | 05-10-2012 |
20120124832 | TURBINE COMPONENTS WITH COOLING FEATURES AND METHODS OF MANUFACTURING THE SAME - The present disclosure is directed to the use and manufacture of cooling features within a component used in a hot gas path, such as within a turbine. In one embodiment, channels are formed within an external surface of the component and filled with a removable material. The external surface and channels may then be coated with one or more layers, such as a structural layer and/or top coat. The removable material may then be removed to leave the channels free of the removable material. | 05-24-2012 |
20120145371 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A component is disclosed. The component includes a substrate comprising an outer surface and an inner surface. The inner surface defines at least one hollow, interior space, and the outer surface defines one or more grooves that extend at least partially along the outer substrate surface and have a respective base. One or more access holes are formed through the base of a respective groove, to connect the groove in fluid communication with the respective hollow interior space. The component further includes a coating comprising one or more layers disposed over at least a portion of the outer substrate surface. The groove(s) and the coating together define one or more channels for cooling the component. One or more trenches are formed through one or more coating layers and at least partially define at least one exit region for the cooling channel(s). A method of fabricating a component is also provided. | 06-14-2012 |
20120148769 | METHOD OF FABRICATING A COMPONENT USING A TWO-LAYER STRUCTURAL COATING - A method of fabricating a component is provided. The fabrication method includes depositing a first layer of a structural coating on an outer surface of a substrate. The substrate has at least one hollow interior space. The fabrication method further includes machining the substrate through the first layer of the structural coating, to define one or more openings in the first layer of the structural coating and to form respective one or more grooves in the outer surface of the substrate. Each groove has a respective base and extends at least partially along the surface of the substrate. The fabrication method further includes depositing a second layer of the structural coating over the first layer of the structural coating and over the groove(s), such that the groove(s) and the second layer of the structural coating together define one or more channels for cooling the component. A component is also disclosed. | 06-14-2012 |
20120151935 | GAS TURBINE ENGINE AND METHOD OF OPERATING THEREOF - A method for operating a gas turbine engine includes compressing an air stream in a compressor and generating a post combustion gas by combusting a compressed air stream exiting from the compressor in a combustor. The post combustion gas is expanded in a first turbine. The expanded combustion gas exiting from the first turbine is split into a first stream and a second stream. The first stream of the expanded combustion gas is combusted in a reheat combustor. The reheat combustor is cooled using the second stream of the expanded combustion gas. | 06-21-2012 |
20120154570 | Thermal Inspection and Machining Systems and Methods of Use - The present application provides a thermal imaging and machining system for a machine component. The thermal imaging and machining system may include a machining subsystem with a machining device for drilling one or more holes in the machine component and a thermal inspection subsystem positioned about the machining subsystem. The thermal inspection subsystem may include an imager and one or more fluid supply lines such that a thermal response of the holes in the machine component may be determined. | 06-21-2012 |
20120163984 | COOLING CHANNEL SYSTEMS FOR HIGH-TEMPERATURE COMPONENTS COVERED BY COATINGS, AND RELATED PROCESSES - A method for providing a fluid cooling system within a high temperature component is described. At least one microchannel is formed in an external surface of the component; and one or more coolant passage holes are then formed, extending from at least one of the microchannels to an interior region of the component. A layer of a metallic structural coating is then applied over the external surface. At least one slot, or a set of relatively small passive cooling holes, are then formed through the metallic structural coating; extending into at least a portion of the microchannels. A second coating layer is then applied over the first layer. In some embodiments, a sacrificial material is deposited into the microchannels before the first coating layer is applied. Related articles are also described. | 06-28-2012 |
20120164376 | METHOD OF MODIFYING A SUBSTRATE FOR PASSAGE HOLE FORMATION THEREIN, AND RELATED ARTICLES - A method for the formation of at least one passage hole in a high-temperature substrate is described. For each desired passage hole or group of passage holes, a node is first formed on the exterior surface of the substrate, by a laser consolidation process. The node functions as a pre-selected entry region for each passage hole. The passage hole can then be formed through the node, into the substrate. Related articles, such as turbine engine components, are also described. | 06-28-2012 |
20120207953 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of manufacturing a component is provided. The method includes forming one or more grooves in an outer surface of a substrate. Each groove extends at least partially along the surface of the substrate and has a base, a top and at least one discharge point. The method further includes forming a run-out region adjacent to the discharge point for each groove and disposing a coating over at least a portion of the surface of the substrate. The groove(s) and the coating define one or more channels for cooling the component. Components with cooling channels are also provided. | 08-16-2012 |
20120243995 | COMPONENTS WITH COOLING CHANNELS FORMED IN COATING AND METHODS OF MANUFACTURE - A method of fabricating a component is provided. The method includes depositing a structural coating on an outer surface of a substrate, where the substrate has at least one hollow interior space. The method further includes forming one or more grooves in the structural coating. Each groove has a base and extends at least partially along the substrate. The method further includes depositing at least one additional coating over the structural coating and over the groove(s), such that the groove(s) and the additional coating together define one or more channels for cooling the component. The method further includes forming one or more access holes through the base of a respective groove, to connect the respective groove in fluid communication with the respective hollow interior space, and forming at least one exit hole through the additional coating for each channel, to receive and discharge coolant from the respective channel. A component with cooling channels formed in a structural coating is also provided. | 09-27-2012 |
20120248217 | BI-DIRECTIONAL FUEL INJECTION METHOD - In certain embodiments, a fuel injector includes a wall separating a fuel passage from an air passage. The fuel injector also includes a fuel injection port extending from a first side of the wall to a second side of the wall for injecting a flow of fuel from the fuel passage into a flow of air in the air passage. In addition, the fuel injector includes first and second feedback lines extending from a downstream end of the fuel injection port to an upstream end of the fuel injection port. The first and second feedback lines are disposed on opposite sides of the fuel injection port. In addition, the first and second feedback lines are disposed entirely within the wall. | 10-04-2012 |
20120251291 | STATOR-ROTOR ASSEMBLIES WITH FEATURES FOR ENHANCED CONTAINMENT OF GAS FLOW, AND RELATED PROCESSES - A stator-rotor assembly is described, including at least one interface region and a gap between a surface of the stator and a surface of the rotor. The stator is a nozzle or vane that includes circumferential endwalls. Each endwall includes at least one leading edge and one trailing edge, relative to a hot gas flow path. A trailing edge of at least one of the endwalls includes a pattern of cavities that are capable of impeding the entry of hot gas into a wheelspace region that adjoins the gap between the stator and the rotor. The cavities can also be formed on various sections of the rotor. The stator-rotor assembly can be incorporated into various turbomachines, such as gas turbine engines. Related processes are also described. | 10-04-2012 |
20120255870 | METHODS OF FABRICATING A COATED COMPONENT USING MULTIPLE TYPES OF FILLERS - Methods of fabricating coated components using multiple types of fillers are provided. One method comprises forming one or more grooves in an outer surface of a substrate. Each groove has a base and extends at least partially along the outer surface. A sacrificial filler is deposited within the groove, a second filler is deposited over the sacrificial filler, and a coating is disposed over at least a portion of the outer surface and over the second filler. The method further includes removing the sacrificial filler and at least partially removing the second filler from the groove(s), to define one or more channels for cooling the component. | 10-11-2012 |
20120276308 | COMPONENT AND METHODS OF FABRICATING A COATED COMPONENT USING MULTIPLE TYPES OF FILLERS - Methods of fabricating coated components using multiple types of fillers are provided. One method comprises forming one or more grooves in an outer surface of a substrate. Each groove has a base and extends at least partially along the outer surface of the substrate. The method further includes disposing a sacrificial filler within the groove(s), disposing a permanent filler over the sacrificial filler, disposing a coating over at least a portion of the substrate and over the permanent filler, and removing the first sacrificial filler from the groove(s), to define one or more channels for cooling the component. A component with a permanent filler is also provided. | 11-01-2012 |
20120295061 | COMPONENTS WITH PRECISION SURFACE CHANNELS AND HYBRID MACHINING METHOD - Methods of forming one or more grooves in a component are provided. One method includes using a first machining technique to form one or more preliminary grooves in an outer surface of a substrate. Each preliminary groove has a base and extends at least partially along the outer surface of the substrate, and the substrate has an inner surface that defines at least one hollow, interior space. The method further includes using a second machining technique to further machine the preliminary groove(s) to form the respective groove(s). In addition, the method includes forming one or more access holes through the base of a respective groove to connect the respective groove in fluid communication with the respective hollow interior space. Components with grooves characterized by a sidewall radius R in a range of 0≦R≦0.127 mm are also provided. | 11-22-2012 |
20120325451 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A manufacturing method includes forming one or more grooves in a component that comprises a substrate with an outer surface. The substrate has at least one interior space, and each groove extends at least partially along the substrate and has a base. The manufacturing method further includes forming one or more access holes through the base of a respective groove, to connect the groove in fluid communication with the respective hollow interior space. The manufacturing method further includes forming at least one connecting groove in the component, such that each connecting groove intersects at least a subset of the one or more grooves. The manufacturing method further includes disposing a coating over at least a portion of the outer surface of the substrate, such that the groove(s) and the coating together define one or more channels for cooling the component. The coating does not completely bridge the connecting groove, such that the connecting groove at least partially defines an exit region for the respective cooling channel(s). | 12-27-2012 |
20120328448 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A manufacturing method is provided. The manufacturing method includes forming one or more grooves in a component comprising a substrate. Each groove extends at least partially along the substrate and has a base, a top and at least one discharge end. The manufacturing method further includes forming a crater, such that the crater is in fluid connection with the respective discharge end for each groove, and disposing a coating over at least a portion of an outer surface of the substrate. The groove(s) and the coating together define one or more channels for cooling the component. The coating does not completely bridge each of the one or more craters, such that each crater defines a film exit. A component with cratered film exits is also provided. | 12-27-2012 |
20130043009 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A component is provided and includes a substrate comprising an outer and an inner surface, where the inner surface defines at least one hollow, interior space. The component defines one or more grooves, where each groove extends at least partially along the outer surface of the substrate and has a base and a top. The base is wider than the top, such that each groove comprises a re-entrant shaped groove. One or more access holes are formed through the base of a respective groove, to connect the groove in fluid communication with the respective hollow interior space. Each access hole has an exit diameter D that exceeds the opening width d of the top of the respective groove. The diameter D is an effective diameter based on the area enclosed. The component further includes at least one coating disposed over at least a portion of the surface of the substrate, wherein the groove(s) and the coating together define one or more re-entrant shaped channels for cooling the component. A method for manufacturing the component is also provided. A method for manufacturing a component is also provided, where the groove and the access hole(s) are machined as a single continuous process, such that the groove and the access hole(s) form a continuous cooling passage. | 02-21-2013 |
20130056184 | COMPONENTS WITH RE-ENTRANT SHAPED COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of fabricating a component is provided. The component includes a substrate that has at least one interior space. The method includes forming one or more grooves in the component. Each groove extends at least partially along an outer surface of the substrate and narrows at an opening thereof, such that each groove is re-entrant shaped. A cross-sectional area A of each groove is in a range of about 2 to about 3 times an area R=W*D, where W is the width of the opening and D is the depth of the re-entrant-shaped groove. Components with grooves formed in the substrate and components with grooves formed at least partially in a structural coating are also provided. | 03-07-2013 |
20130078418 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A manufacturing method is provided. The manufacturing method includes forming one or more grooves in a component that comprises a substrate with an outer surface. The substrate has at least one interior space. Each groove extends at least partially along the substrate and has a base and a top. The manufacturing method further includes processing an intermediate surface of the component to plastically deform the surface adjacent at least one edge of a respective groove, such that the distance across the top of the groove is reduced. Another manufacturing method is provided and includes processing an intermediate surface of the component to facet the intermediate surface in the vicinity of the groove. | 03-28-2013 |
20130078428 | COMPONENTS WITH CCOLING CHANNELS AND METHODS OF MANUFACTURE - A manufacturing method includes forming one or more grooves in a component that comprises a substrate with an outer surface. The substrate has at least one interior space. Each groove extends at least partially along the substrate and has a base and a top. The manufacturing method further includes applying a structural coating on at least a portion of the substrate and processing at least a portion of the surface of the structural coating so as to plastically deform the structural coating at least in the vicinity of the top of a respective groove, such that a gap across the top of the groove is reduced. A component is also disclosed and includes a structural coating disposed on at least a portion of a substrate, where the surface of the structural coating is faceted in the vicinity of the respective groove. | 03-28-2013 |
20130086784 | REPAIR METHODS FOR COOLED COMPONENTS - A method for repairing a component is provided, where the component has a substrate comprising an outer surface and an inner surface and defining one or more grooves. Each groove extends at least partially along the outer surface of the substrate. The component further includes a structural coating, a bond coating, and a thermal bather coating. The groove(s) and the structural coating define one or more channels for cooling the component. The repair method includes removing the thermal barrier and bond coatings, removing at least a portion of the structural coating in a vicinity of a damaged portion of the component, performing a repair operation on the damaged portion of the component, applying a structural coating at least in a vicinity of the repaired portion of the component, and applying a bond coating and a thermal barrier coating. Additional repair methods are also provided. | 04-11-2013 |
20130101761 | COMPONENTS WITH LASER CLADDING AND METHODS OF MANUFACTURE - A method of manufacture is provided. The manufacturing method includes using an abrasive liquid jet to form one or more grooves in an outer surface of a substrate. Each groove has a base and an opening and extends at least partially along the outer surface of the substrate, where the substrate has an inner surface that defines at least one hollow, interior space. The manufacturing method further includes using a laser cladding process to apply a laser clad material over the opening of the respective groove(s), to at least partially define one or more channels for cooling the component, and disposing a coating over at least a portion of the outer surface of the substrate and over the laser clad material. Other manufacturing methods and a component are also provided. | 04-25-2013 |
20130104397 | METHODS FOR REPAIRING TURBINE BLADE TIPS | 05-02-2013 |
20130140007 | COMPONENTS WITH RE-ENTRANT SHAPED COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of fabricating a component is provided. The method includes forming one or more grooves in a surface of a substrate, where the substrate has at least one hollow interior space. Each of the one or more grooves extends at least partially along the substrate surface and has a base and a top. The base is wider than the top, such that each of the one or more grooves comprises a re-entrant shaped groove. The method further includes forming one or more access holes through the base of a respective groove, to connect the groove in fluid communication with respective ones of the hollow interior space(s), and disposing a coating over at least a portion of the substrate surface. The one or more grooves and coating define one or more re-entrant shaped channels for cooling the component. A component with one or more re-entrant shaped channels and a method of coating a component are also provided. | 06-06-2013 |
20130152599 | HYDROCARBON FILM PROTECTED REFRACTORY CARBIDE COMPONENTS AND USE - A turbine power generation system with enhanced stabilization of refractory carbides provided by hydrocarbon from high carbon activity gases is disclosed. The disclosure also includes a method of using high carbon activity gases to stabilize hot gas path components. | 06-20-2013 |
20130156600 | COMPONENTS WITH MICROCHANNEL COOLING - A component includes a substrate having an outer surface, an inner surface and a tip. The inner surface defines at least one hollow, interior space. The outer surface defines one or more grooves, where each groove extends at least partially along the outer surface of the substrate and has a base. The component further includes a coating disposed over at least a portion of the outer surface of the substrate. The coating includes at least a structural coating that extends over the groove(s), such that the groove(s) and the structural coating together define one or more channels for cooling the component. The tip comprises a tip cap enclosing the hollow, interior space(s), and a tip rim disposed at a radially outer end of the substrate. The tip rim at least partially defines at least one discharge channel in fluid communication with at least one cooling channel. | 06-20-2013 |
20130272850 | COMPONENTS WITH MICROCHANNEL COOLING - A component includes a substrate having outer and inner surfaces, where the inner surface defines at least one hollow, interior space. The outer surface defines pressure side and suction side walls, which are joined together at leading and trailing edges of the component. The outer surface defines one or more grooves that extend at least partially along the pressure or suction side walls in a vicinity of the trailing edge. Each groove is in fluid communication with a respective hollow, interior space. The component further includes a coating disposed over at least a portion of the outer substrate surface. The coating comprises at least a structural coating that extends over the groove(s), such that the groove(s) and the structural coating together define one or more channels for cooling the trailing edge. A method of forming cooling channels in the vicinity of the trailing edge is also provided. | 10-17-2013 |
20130312941 | COMPONENTS WITH MICROCHANNEL COOLED PLATFORMS AND FILLETS AND METHODS OF MANUFACTURE - A component includes a substrate that has outer and inner surfaces. The inner surface defines at least one hollow, interior space. The outer surface defines pressure and suction sidewalls that are joined together at leading and trailing edges of the component and together form an airfoil portion of the component. The outer substrate surface further defines at least one platform and at least one fillet that extends between and integrally connects the airfoil to the respective platform. The outer surface defines one or more grooves that extend at least partially along a respective fillet. Each groove is in fluid communication with a respective hollow, interior space. The component further includes a coating disposed over at least a portion of the outer substrate surface and including at least a structural coating that extends over the groove(s). The groove(s) and the structural coating together define channel(s) for cooling the respective fillet. | 11-28-2013 |
20130316100 | COMPONENTS WITH COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of manufacturing a component is provided. The method includes forming one or more grooves in an outer surface of a substrate. Each groove extends at least partially along the surface of the substrate and has a base, a top and at least one discharge point. The method further includes forming a run-out region adjacent to the discharge point for each groove and disposing a coating over at least a portion of the surface of the substrate. The groove(s) and the coating define one or more channels for cooling the component. Components with cooling channels are also provided. | 11-28-2013 |
20140004310 | WIRELESS COMPONENT AND METHODS OF FABRICATING A COATED COMPONENT USING MULTIPLE TYPES OF FILLERS | 01-02-2014 |
20140033737 | METHOD AND SYSTEM FOR GAS TEMPERATURE MEASUREMENT - A temperature measurement system includes at least one filament configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band that is at least partially representative of a temperature of the at least one filament. The system also includes an optical system configured to receive at least a portion of the thermal radiation emitted from the filament. The optical system includes a wavelength splitting device configured to split the emitted thermal radiation into at least one relatively narrow wavelength band of thermal radiation. The optical system also includes a detector array configured to receive the at least one relatively narrow wavelength band of thermal radiation and to generate electrical signals at least partially representative of the received thermal radiation. The temperature measurement system further includes a controller communicatively coupled to the detector array. The controller is configured to transform the generated electrical signals to a temperature indication using a predetermined conversion module. | 02-06-2014 |
20140083639 | BACKSTRIKE PROTECTION DURING MACHINING OF COOLING FEATURES - A method of machining a component is provided. The component includes a substrate having an outer surface and an inner surface, where the inner surface defines at least one interior space. A core is disposed within each interior space. The method includes forming at least one hole in the substrate while the core is disposed within the respective interior space. Each hole extends through the substrate to provide fluid communication with the respective interior space. The method further includes removing the core from the respective interior space. The core may be a casting core or a subsequently formed core. | 03-27-2014 |
20140116660 | COMPONENTS WITH ASYMMETRIC COOLING CHANNELS AND METHODS OF MANUFACTURE - A method of fabricating a component is provided. The component includes a substrate having an outer surface and an inner surface, where the inner surface defines at least one interior space. The fabrication method includes forming at least one groove in the outer substrate surface. Each groove extends at least partially along the outer substrate surface and has an asymmetric cross-section. The method further includes forming at least one access hole in the substrate. Each access hole connects the respective groove in fluid communication with the respective interior space. A coating is disposed over at least a portion of the substrate surface, such that the groove(s) and the coating together define one or more channels for cooling the component. A component is also disclose and has at least one groove with an asymmetric cross-section. | 05-01-2014 |
20140120274 | COMPONENTS WITH MICRO COOLED COATING LAYER AND METHODS OF MANUFACTURE - A manufacturing method includes providing a substrate with an outer surface and at least one interior space, applying a coating on a portion of the substrate and forming one or more grooves in the coating, wherein each groove extends at least partially along the coating. The method further includes processing at least a portion of the surface of the coating to plastically deform the coating in the vicinity of the top of a respective groove. An additional coating is applied over at least a portion of the surface of the coating. A component is disclosed and includes a substrate, a coating disposed on at least a portion of the substrate, and defining one or more grooves therein, and an additional coating disposed over at least a portion of the coating. The substrate, the coating and the additional coating together define one or more channels for cooling the component. | 05-01-2014 |
20140137408 | METHODS OF FABRICATING AND COATING TURBINE COMPONENTS - In one aspect, a method of forming a hot gas path component is provided. The method includes forming at least one groove in an outer surface of a substrate, wherein the at least one groove has a base and a top. The method further includes filling the at least one groove with a filler. The method also includes applying at least one cover layer over at least a portion of the outer surface of the substrate such that the at least one groove and the at least one cover layer define at least one micro-channel for cooling the component. The filler is automatically removed from the at least one micro-channel during application of the at least one cover layer. Methods for coating a hot gas component and for assembling a turbine engine assembly are also provided. | 05-22-2014 |
20140157792 | SYSTEM AND METHOD FOR REMOVING HEAT FROM A TURBINE - A system for removing heat from a turbine includes a component in the turbine having a supply plenum and a return plenum therein. A substrate that defines a shape of the component has an inner surface and an outer surface. A coating applied to the outer surface of the substrate has an interior surface facing the outer surface of the substrate and an exterior surface opposed to the interior surface. A first fluid channel is between the outer surface of the substrate and the exterior surface of the coating. A first fluid path is from the supply plenum, through the substrate, and into the first fluid channel, and a second fluid path is from the first fluid channel, through the substrate, and into the return plenum. | 06-12-2014 |
20140169943 | COMPONENTS WITH POROUS METAL COOLING AND METHODS OF MANUFACTURE - A manufacturing method includes providing a substrate with an outer surface and at least one interior space and machining the substrate to selectively remove a portion of the substrate and define one or more cooling supply holes therein. Each of the one or more cooling supply holes is in fluid communication with the at least one interior space. The method further includes disposing an open cell porous metallic layer on at least a portion of the substrate. The open cell porous metallic layer is in fluid communication with the one or more cooling supply holes. A coating layer is disposed on the open cell porous metallic layer. The coating layer having formed therein one or more cooling exit holes in fluid communication with the open cell porous metallic layer. The substrate, the one or more cooling supply holes, the open cell porous metallic layer and the cooling exit holes providing a cooling network for a component. | 06-19-2014 |
20140220253 | MICRO-CHANNEL COATING DEPOSITION SYSTEM AND METHOD FOR USING THE SAME - Methods of pressure coating a target surface of an article comprising one or more grooves formed in an outer surface of an article include fluidly connecting a pressure masker comprising a pressurized masking fluid to one or more coolant supply holes on a first side of the article. The one or more coolant supply holes in fluidic communication with the one or more grooves. Passing the pressurized masking fluid through the one or more grooves from the first side to a second side comprising the target surface at a pressure less than the coating pressure of the coating material, and, coating the target surface with the coating material to allow the coating material to bridge over the one or more grooves and form one or more micro-channels. The pressurized masking fluid passing through the one or more grooves prevents the coating material from permanently altering a cross sectional area of the one or more grooves along its length. | 08-07-2014 |
20140302278 | COMPONENTS WITH DOUBLE SIDED COOLING FEATURES AND METHODS OF MANUFACTURE - A manufacturing method includes providing a substrate and forming one or more grooves into an outer surface of the substrate or into a coating layer disposed on the outer surface of the substrate and forming one or more grooves into an inner surface of the substrate or into a coating layer disposed on the inner surface of the substrate, to define one or more cooling grooves on the inner surface of the substrate. The method further includes applying a structural coating over at least one of a portion of the outer surface of the substrate or a portion of the coating disposed on the outer surface of the substrate to define one or more cooling channels on the outer surface of the substrate. A component is disclosed fabricated according to the method. | 10-09-2014 |
20140352319 | GAS TURBINE ENGINE AND METHOD OF OPERATING THEREOF - A gas turbine engine and method for operating a gas turbine engine includes compressing an air stream in a compressor and generating a post combustion gas by combusting a compressed air stream exiting from the compressor in a combustor. The post combustion gas is expanded in a first turbine. The expanded combustion gas exiting from the first turbine is split into a first stream, a second stream and a third stream. The first stream of the expanded combustion gas is combusted in a reheat combustor. An outer liner and flame stabilizer of the reheat combustor are cooled using the second stream of the expanded combustion gas. An inner liner of the reheat combustor is cooled using the third stream of the expanded combustion gas and a portion of the second stream of the expanded combustion gas passing through the one or more flame stabilizers. | 12-04-2014 |
20140366550 | GAS TURBINE ENGINE AND METHOD OF OPERATING THEREOF - A gas turbine engine and method for operating a gas turbine engine includes compressing an air stream in a compressor and combusting the compressed air stream to generate a post combustion gas. The post combustion gas is expanded in a first turbine. The expanded combustion gas exiting the first turbine is split into a first stream, a second stream and a third stream in a splitting zone including one or more aerodynamically shaped flow diverters. The first stream of the expanded combustion gas is combusted in a reheat combustor. An outer liner and flame stabilizer of the reheat combustor are cooled using the second stream of the expanded combustion gas. An inner liner of the reheat combustor is cooled using the third stream of the expanded combustion gas and a portion of the second stream of the expanded combustion gas passing through the one or more flame stabilizers. | 12-18-2014 |