Abstract: A well penetrating a subterranean formation may be subjected to a multi-path gravel packing operation by using a fluid containing an ultra lightweight particulate having an apparent specific gravity less than or equal to 2.45 which is substantially neutrally buoyant in a carrier fluid. The fluid is flowed through one or more transport tubes which, with a gravel packing screen, constitute a screen assembly. A gravel pack is formed onto the screen of the screen assembly in-situ.

Abstract: Systems and methods for operating a linear motor (e.g., for an ESP), where the motor's mover moves in a reciprocating motion within a bore of the stator. Hard stops are located at the ends of the bore. The motor has a first set of sensors in the stator positioned proximate to the bore. When the mover moves in the bore, the sensors produce corresponding output signals, except when the mover is in a position near, but not in contact with a hard stop. While the sensors produce output signals, the motor is driven in a first direction toward the hard stop. When the sensors stop producing the output signals, the mover has reached the first position, and the motor is controlled to reverse the direction of the mover.

Abstract: A system for stimulating a well with an annulus formed by a string and a wellbore, wherein the system includes an injection assembly, a normally closed injection valve, a normally open flow activated bottom valve, a sand control element, a mechanically operated sand control valve, a releasable anchor configured to be set in the wellbore downstream from the sand control valve.

Abstract: A system and method are disclosed for centralized monitoring and control of a hydraulic fracturing operation. The system includes an electric powered fracturing fleet and a centralized control unit coupled to the electric powered fracturing fleet. The electric powered fracturing fleet can include a combination of one or more of: electric powered pumps, turbine generators, blenders, sand silos, chemical storage units, conveyor belts, manifold trailers, hydration units, variable frequency drives, switchgear, transformers, and compressors. The centralized control unit can be configured to monitor and/or control one or more operating characteristics of the electric powered fracturing fleet.

Abstract: A method of fracturing a formation with a fracturing fluid in a wellbore extending into the formation includes pumping a spacer fluid through a spacer fluid channel into the wellbore and pumping a proppant slurry through a proppant slurry channel into the wellbore separately from the spacer fluid. The method further includes combining the spacer fluid and the proppant slurry within the wellbore to create the fracturing fluid with portions comprising varied proppant concentrations and pumping the fracturing fluid with the varied proppant concentrations into the formation.

Abstract: Embodiments of the invention include systems, methods, and computer-readable mediums for optimizing the placement of wells in a reservoir. Embodiments include, for example, determining for a reservoir a layer productivity index for coordinates of a reservoir using reservoir metrics and specified well spacings associated with the reservoir, determining a total dynamic productivity index for the coordinates based on the layer productivity index, and determining placement of one or more wells responsive to the total dynamic productivity index and defined spacing between the one or more wells. Embodiments further include, for example, generating a production analysis report for the reservoir that includes an assessment of well placement and generating a wells placement map using one or more total dynamic productivity index indicators.

Abstract: A bladeless conical radial rotary machine method and system are disclosed. Turbo-machinery and methods are disclosed for a bladeless conical radial rotary machine wherein fluid is directed axially within the pump body to produce an axial output. The rotor comprises a plurality of spaced apart conical elements. The fluid is smoothly directed to any number of subsequent boundary layer pumping stages which are axially positioned with respect to each other. The fluid is smoothly directed to any number of subsequent boundary layer pumping stages which are axially positioned with respect to each other. A coupling between pumping stages is disclosed.

Abstract: Systems and methods for slide drilling are described. The system includes a controller and a drive system. The controller is configured to determine a resonant frequency of a drill string, generate a rotational acceleration profile having a frequency at least substantially similar to the determined resonant frequency, and provide one or more operational control signals to oscillate the drill string based on the generated rotational acceleration profile. The drive system is configured to receive the one or more operational control signals from the controller, and oscillate the drill string based on the generated rotational acceleration profile so that the drill string oscillates at a frequency substantially similar to the determined resonant frequency while slide drilling.

Abstract: A rotary steerable system includes a non-rotating housing, azimuthal resistivity antennas and electronics, disposed within the non-rotating housing, configured to measure a distance to an approaching upper or lower formation boundary, and a control module configured to steer a drill bit along a well path and, based on measurements from the azimuthal resistivity antennas, to steer the housing away from the approaching upper or lower formation boundary and thereby maintain a certain distance between the steerable housing and upper or lower formation boundary.

Abstract: A heading transfer unit may be used to transfer a heading from a surface base to a MWD tool. The surface base may have a master north finder to determine a heading. The heading may be transferred to the heading transfer unit, which is in turn transferred to the MWD unit. The heading on the heading transfer unit is transferred to the MWD tool.

Abstract: In one example, an integrated well survey management and planning tool is implemented by a computer system. The tool receives a trajectory of a proposed well from a surface to a subterranean geological target to be reached by drilling the well, and a survey plan indicating the number, position and survey type of surveys to be performed on the well while drilling. The tool applies multiple error models based on the survey type for drilling the well. Each error model defines a respective uncertainty in reaching the subterranean geological target by drilling the well along the received trajectory. The tool displays, in a user interface, the received trajectory of the well and an uncertainty indicator determined by applying the multiple error models. The uncertainty indicator represents a combination of respective uncertainties defined by the multiple error models and indicates an uncertainty in drilling the well on the received trajectory.

Abstract: Planning and real time optimization of one or more modules of a downhole tool provide efficient and cost-effective deployment of a measurement system, for example, for a ranging tool. Considerations of the environment and type of operation may be considered prior to the deployment of a downhole tool such that the downhole tool comprises modules that may be optimized. Certain modules may be activated for specific operations without having to extract the downhole tool as all modules necessary to perform the specific tasks for a given operation are included prior to deployment of the downhole tool. The one or more modules may be optimized in real time based, for example, on received measurements or previous survey results. The modularity of the downhole tool allows for flexibility in fine tuning the tool according to a varying formation environment and other parameters.

Abstract: The structural integrity and reliability of a downhole tool or mandrel may be improved by implementation of a design and configuration that does not require several separate components to be coupled together. A button recessed within an insulation layer may be installed within a groove or recess of the downhole tool. The isolation layer electrically isolates the button from the downhole tool. The button and the isolation layer are installed such that the top surface of either does not extend beyond the outer surface of the downhole tool. Recessing the button and isolation layer in this manner prevents undue wear on the downhole tool as well as the button and isolation layer. The buttons may be arranged so that when excited the buttons may detect the presence of a target objects located at various distances, directions, and orientations from the downhole tool.

Abstract: Various apparatus or methods are arranged to operate a tool in a wellbore, where the tool has a number of acoustic sensors. Scanning images obtained by the tool sensors along the borehole can be combined to increase the contrast of leak location with respect to background noise. A sequence of beamformed images, generated from signals captured by the tool as it moves over a range of depths of the wellbore, can be acquired. Each beamformed image may overlap at least one other beamformed image of the sequence. The beamformed images can be processed and the processed beamformed images can be combined, forming a stitched image. Additional apparatus, systems, and methods operable in providing stitched images can operate in a variety of applications.

Abstract: An imaging agent, a method of production of the imaging agent, and the use of the imaging agent for microseismic monitoring of subterranean formations such as those generated during hydraulic fracturing. The acoustic emitting agent is tailorable for emission delay to ensure placement and frequency emission profiles for well region differentiation. This monitoring tool is highly useful in gas, oil, and geothermal well defining and stimulation monitoring.

Abstract: A system for wirelessly monitoring well conditions includes a set of wireless transceivers placed along a drill string inside a well, each transceiver placed within at least half the maximum distance that each transceiver can transmit data, and a power generator attached to each transceiver that powers the respective transceiver, the power generator including a first material that is of one polarity and a second material that is fixed in position and is of opposite polarity of the first material, wherein the first material is propelled toward the second material based on the motion of the power generator so that the two materials have a maximized point of contact to generate maximum power. The wireless transceivers may communicate using any wireless communication technology, including but not limited to Wi-Fi, Wi-Fi Direct, and BLE.

Abstract: A system for wirelessly monitoring well conditions includes a set of wireless transceivers placed along a drill string inside a well, each transceiver placed within at least half the maximum distance that each transceiver can transmit data, and a power generator attached to each transceiver that powers the respective transceiver, the power generator including a first material that is of one polarity and a second material that is fixed in position and is of opposite polarity of the first material, wherein the first material is propelled toward the second material based on the motion of the power generator so that the two materials have a maximized point of contact to generate maximum power. The wireless transceivers may communicate using any wireless communication technology, including but not limited to Wi-Fi, Wi-Fi Direct, and BLE.

Abstract: A wellbore system includes a first fracture formed from a wellbore at a first location; a second fracture formed from the wellbore at a second location; a wellbore seal positioned in the wellbore between the first and second locations and configured to fluidly seal a first portion from a second portion of the wellbore; a pressure gauge positioned in the first portion; a pressure gauge positioned in or uphole of the second portion; and a control system configured to communicably couple to the pressure gauges.

Abstract: Well settings in mature oil field may be configured by generating progressively, a plurality of geological reservoir models by fitting a set of initial geological reservoir models that generate forecasts of fluid injection and production at a well as a function of time, with a subset of historical well data to produce a set of intermediary geological reservoir models, and fitting the set of intermediary geological reservoir models to a next subset of the historical well data. A set of diverse geological reservoir models may be determined from the plurality of geological reservoir models. A mid-term schedule of well settings associated with the well may be generated based on the set of diverse geological reservoir models and an economic model that comprises mid-term estimation of oil sale price and of production costs. The mid-term schedule of well settings may be actuated to control the fluid injection and production at the well.

Abstract: A method of evaluating a geometric parameter of a first fracture emanating from a first wellbore penetrating a subterranean formation is provided. The method includes the steps of forming the first fracture in fluid communication with the first wellbore; forming a second fracture in fluid communication with a second wellbore; measuring a first pressure change in the second wellbore in proximity to the first wellbore; and determining the geometric parameter of the first fracture using at least the measured first pressure change in an analysis which couples a solid mechanics equation and a pressure diffusion equation.

Abstract: A method and system are described for imaging core samples associated with a subsurface region. The imaging results may be used to create or update a subsurface model and using the subsurface model and/or imaging results in hydrocarbon operations. The imaging techniques may include NMR imaging and CT imaging. Further, the imaging techniques may also include exposing the core sample to the imaging gas.

Abstract: A housing mount assembly for a TBM disc cutter assembly having a shaft and cutter wheel assembly includes a housing half with a body and opposite edge portions extending away from the body. A removable seat block is fixed to the housing half in a space between the edge portions, and is configured to transmit forces received from the cutter shaft to the housing half in shear. A first face of the seat block is pressed against a face of one of the edge portions, and second face is pressed against the housing half body. The seat block may be preloaded against the housing half with first and second pluralities of bolts arranged perpendicularly. The seat block is configured to be removable in the field without removing the housing half from the TBM. The seat block may be hardened to a Rockwell C hardness in the range of Rc 58 to 60.

Abstract: A tunnel boring machine includes: a cutter head; a cutter support; a cutter driving unit; a rotational position sensing unit; a strain sensor; and a data processing unit configured to calculate a force acting on the cutter head in association with the position of the cutter head in the rotational direction, based on sensing results of the strain sensor and the rotational position sensing unit.

Abstract: The invention relates to a construction element (4 for covering a concrete surface (20), a construction comprising said construction element (4) and a method for covering a concrete surface (20) with said construction elements (4). The construction element (4) is provided with a plurality of anchoring elements (5) for anchoring the construction element to the concrete (9) when it is casted, wherein each anchoring element (5) comprises an opening (51) which is arranged to be in fluid communication with the concrete (9), a base (52) that is recessed and a circumferential wall (53) extending between the opening (51) and the base (52), wherein the circumferential wall (53) defines a volume for receiving the concrete (9) into the anchoring element (5), wherein each anchoring element (5) comprises at least one locking surface (6) that faces said volume and that is arranged to stop movement of the concrete (9) from the base (52) towards the opening (51), after the concrete (9) has cured, in an anchoring direction.

Abstract: Some embodiments include an energy source supply appliance. The appliance energy source supply system can comprise an appliance energy source supply subsystem, and the appliance energy source supply subsystem can comprise a pressure regulator, a first thermal control device, and a second thermal control device. The appliance energy source supply subsystem can be configured to receive a hydrogen fuel energy source and to make available the hydrogen fuel energy source to a receiver vehicle, and the receiver vehicle can comprise a drive system configured to use the hydrogen fuel energy source received by the receiver vehicle to motively power the receiver vehicle. Other embodiments of related systems, devices, and methods also are provided.

Abstract: The invention relates to a rotary piston engine comprising a housing which forms an interior space, two rotary pistons which are arranged in the interior space, an inlet opening for introducing a fluid into the interior space, and an outlet opening for the fluid, which is located in the interior space on a side opposite the inlet opening. Each rotary piston comprises at least two sealing strips and at least two recesses on the outer circumference thereof, wherein the shapes of the recesses and the sealing strips are selected to engage the sealing strips of a respective rotary pistons in the recesses of the respective other rotary piston. In addition, the sealing strips are dimensioned in the radial direction to sealingly contact an inner wall of the housing. The invention also relates to a corresponding method for operating a rotary piston engine.

Abstract: A controlled collapse stub shaft allows controlled axial-movement of a mainline shaft joining a fan or compressor to a turbine. A first end of the stub shaft is joined to the mainline shaft. A second end of the stub shaft is joined to an engine part axially stationary relative to the mainline shaft controlled axial-movement. The stub shaft has an annular-body between first and second ends. The body contains plurality of axially-spaced circumferential rows of circumferentially-extending slots, inter-slot ligaments formed between each row slots. Successive rows are offset. The ligaments of the axially forwardmost and rearwardmost rows excepted, each ligament sandwiched between forward and rearward slots of neighbouring rows. Each ligament joined to adjacent ligaments of neighbouring rows by circumferentially-extending bars having thickness in axial direction corresponding to axial spacing between rows.

Abstract: A rotor blade comprises a mount and a blade that extends from the mount along a radial axis. The leading edge includes an indent segment. The leading edge has a leading edge radial length measured along the radial axis. The indent segment has an indent radial length measured along the radial axis. The indent segment has an indent depth. A first ratio of the indent radial length to the leading edge radial length is at most 0.5. A second ratio of the indent depth to the indent radial length is at least 0.05.

Abstract: A control unit, controller and non-transitory machine-readable medium for detecting a closing time of an injector valve are disclosed. The control unit is configured to receive a valve current profile of the injector valve, process the valve current profile using at least a slope discriminator, and determine a stuck status and a closing time (if applicable) of the injector valve based on an output of the slope discriminator.

Abstract: A process for providing cooling fluid holes in an airfoil portion of a turbine engine component comprising: positioning a first core with metering/tripping features that form a row of protrusions, and teardrop features that form a fluid passageways, the teardrop features including a central teardrop feature having a trailing edge, a first teardrop feature located on a first side of and spaced from the central teardrop feature, the first teardrop feature having a longitudinal axis and being non-symmetrical about the longitudinal axis, and a second teardrop feature located on a second side of and spaced from the central teardrop feature, the second teardrop feature having a longitudinal axis and non-symmetrical about the longitudinal axis; joining the core to a ceramic core; forming the turbine engine component; removing the core, forming a cooling microcircuit with fluid outlets; and drilling a central portion of the cooling microcircuit forming a converging/diverging outlet.

Abstract: An internal cooling system (14) including an impingement jet strike channel system (16) for increasing the effectiveness of impingement jets (18) is disclosed. The impingement jet strike channel system (16) may include an impingement jet strike cavity (20) offset from one or more impingement orifices (22). A plurality of impingement jet strike channels (24) may extend radially outward from the impingement jet strike cavity (20) forming a starburst pattern of impingement jet strike channels (24) and may be formed by a plurality of ribs (26) that each separate adjacent impingement jet strike channels (24). The ribs (26) forming the impingement jet strike channels (24) may be split one or more times into multiple channels to increase the number of stagnation points (28, 38, 52) to increase the cooling capacity.

Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, an airfoil having a tip wall that joins outer spanwise ends of a suction sidewall and a pressure sidewall and including a tip rib extending chordwise along a pressure side of said tip wall. The tip wall includes a tip shelf disposed at a junction between said pressure sidewall and said tip rib. A tip leakage control channel at an outer surface of said tip wall, wherein said tip leakage control channel is between first and second tip leakage control vanes contiguous with a suction side surface of said tip rib, said tip leakage control channel extending toward said trailing edge while extending toward said suction sidewall. An air seal is radially outward of said tip wall and positioned to minimize leakage at said tip wall.

Abstract: A rotor assembly is provided. The rotor assembly includes a plurality of blades spaced circumferentially. An airfoil of each blade includes a pressure side, a suction side, a pressure side nub extending from the pressure side, and a suction side nub extending from the suction side. An airfoil length is greater than one of (i) 40 inches, wherein the rotor is configured for operation at about 3600 rpm, and (ii) 48 inches, wherein the rotor is configured for operation at about 3000 rpm. The rotor assembly also includes a plurality of sleeves. Each of the sleeves extends from a first end to a second end. The first end is coupled to the pressure side nub of a first of the blades and the second end is coupled to the suction side nub of an adjacent second of the blades.

Abstract: A method of manufacturing a coated turbine vane (34) comprises manufacturing a turbine vane (34) having a platform (44) and an aerofoil (42) extending from the platform (44), a curved transition (60) connects the platform (44) to the aerofoil (42) and a recess (64) is provided in the curved transition (60) from the platform (44) to the aerofoil (42). A bond coating (70) is deposited on the platform (44), the aerofoil (42), the curved transition (60) and the recess (64). A ceramic thermal barrier coating (72) is deposited on the platform (44), the recess (64) and the curved transition (60) by plasma spraying. The recess (64) reduces the size of the step due to the ceramic thermal barrier coating (72) and hence improves the aerodynamics of the turbine vane (34).

Abstract: An environmental severity measurement tool measures acceleration along 3 axes to determine shock and vibration affecting a downhole tool in which the environmental severity measurement tool is disposed. The environmental severity measurement tool includes a replaceable battery and electronics disposed within an external housing. A pin provides a way to ensure the environmental severity measurement tool is oriented in a known orientation. Data sampled by the tool can be downloaded from the tool to an external device through a connector port of the electronics. Software in the tool controls the operation of the tool and can be configured from an external device.

Abstract: A gas turbine engine has a non-axially symmetric main duct portion (113). The non-axially symmetric main duct portion (113) may provide improved aerodynamics, heat load, structural strength and engine compactness.

Abstract: The invention relates to a guide vane for a twin-spool aircraft turbomachine, of which the aerodynamic part (32) comprises an internal lubricant cooling passage (50a) extending along a principal lubricant flow direction (52a). According to the invention, the aerodynamic part is made in a single piece and also comprises heat transfer fins (80a, 80b) arranged in the passage (50a) connecting the intrados and extrados walls (70, 72) and extending approximately parallel to the direction (52a), these fins being distributed in successive rows along the principal direction (52a) and made such that for two rows (R1, R2) of staggered directly consecutive fins, the row (R1) comprises fins (80a) forming a positive acute angle A1 with a dummy reference plane (Pf), while the row (R2) comprises fins (80b) forming a negative acute angle A2 with this plane (Pf).

Abstract: The present invention discloses an elastic sheet used for a turbine follow-up suspended steam seal belt and a steam seal structure thereof, which comprises a plurality of elastic L-shaped metal sheets correspondingly overlapped on the same rim, one rim of the L-shaped metal sheet is a toothed rim, the toothed notches of the toothed rim extend laterally through the entire toothed rim so that the other rim of the L-shaped metal sheet can be bent longitudinally toward the toothed rim to form an arc shape; the toothed notches and the toothed tabs of the toothed rims of the plurality of L-shaped metal sheets are misoriented with each other to cover the toothed notches, and the other rim of the L-shaped metal sheet is fixed within the arc-shaped steam seal ring block along the steam seal ring teeth, the steam seal ring teeth extend out from the top of the toothed rim to seal the gap between the seal ring teeth and the turbine main shaft, and the toothed rims of the L-shaped metal sheet perform elastic beating recip

Abstract: A rim seal between a stator and a rotor in a gas turbine engine is described. The seal includes an axial overlap between platform rims of the stator and the rotor. The axial length of the platform rim of one of the stator and the rotor is accommodated within a radially aligned trench defined in the other of the stator and the rotor.

Abstract: A system includes a transition piece configured to receive combustion products from a combustion chamber, and the transition piece is coupled to a first support of the system. The system further includes a turbine nozzle configured to receive combustion products from the transition piece, and the turbine nozzle is coupled to a second support of the system. The system further includes a web plate disposed at a radial position about a turbine axis between the transition piece and the turbine nozzle. The web plate is configured to form a first seal between the web plate and the transition piece and the web plate is configured to form a second seal between the web plate and the turbine nozzle. In addition, the web plate extends in a circumferential direction about the turbine axis and the web plate is coupled to a third support of the system. Further, the web plate includes an inner surface, an outer surface, and an arm extending in a radial direction between the inner surface and the outer surface.

Abstract: A method according to disclosure may include removing only a portion of a used abradable material layer on a metal sealing surface of a first component that interacts with an abradable sealing element extending from a second component. The first and second component may be, in one example, vanes and rotor of a steam turbine, that sealingly move relative to one another in an operative state. The method includes thermal spray layer a new abradable material layer on the used abradable material layer, rather than completely removing the used abradable material and starting over on bare metal.

Abstract: A seal carrier (63) for a turbomachine (60) which is assembled from seal carrier segments, is provided. The seal carrier segments each have a seal structure (1a, b) on the radially inward side. These seal structures (1a, b) are either interleaved in the circumferential direction (4) such that a cross-sectional plane containing the longitudinal axis (2) of the turbomachine (60) intersects both the first seal structure (1a) and the second seal structure (1b), or the seal structures (1a, b) rest against each another.

Abstract: Systems and methods for adjusting blade tip clearance targets and utilizing the adjusted targets to optimize the clearances between the blade tips and surrounding shrouds of a turbine engine are provided. In one exemplary aspect, one or more engine controllers utilize a machine-learned model to customize blade tip clearance targets based on the way an engine has been uniquely operated in the past for a particular flight mission. Present flight data associated with a present flight of a given flight mission is obtained. A model blade tip clearance target is adjusted based at least in part on the machine-learned model and the present flight data. The machine-learned model is trained at least in part on past flight data indicative of the manner in which the turbine engine has been operated for one or more past flights of the flight mission. An adjusted blade tip clearance target is then generated.

Abstract: A sensor assembly is described herein. The sensor assembly includes a housing that includes an inner surface that defines a cavity within the housing, and a proximity sensor positioned within the cavity. The proximity sensor includes a first connector, a second connector, and a substantially planar sensing coil that extends between the first connector and the second connector. The sensing coil extends outwardly from the first connector such that the second connector is radially outwardly from the first connector.

Abstract: The present disclosure provides methods and systems of generating flows of detergent through a turbine engine to effectuate cleaning of components thereof. The methods include introducing a foamed, acid-including detergent with a pH range of between 2 and 7 into a gas flowpath of the turbine engine. The methods also include creating a pressure differential in an aft portion of the gas flowpath with respect to a forward portion of the gas flowpath to generate a flow of the detergent therethrough. The methods further include creating a pressure differential in a forward portion of the gas flowpath with respect to an aft portion of the gas flowpath to generate a counterflow of the detergent therethrough. The flow and counterflow of the detergent through the gas flowpath interact with components of the turbine engine having foreign material thereon to at least partially remove the foreign material therefrom.

Abstract: Disclosed is flutter damper including a first cavity having a radially inner side in fluid communication with a flow path, and a second cavity having a radially inner side in fluid communication with a radially outer side of the first cavity, and the flutter damper having an impedance characteristic at one or more target frequencies defined as ftarget=fS,ND+?·ND wherein fS,ND is a resonance frequency corresponding to a structural mode of a rotating component, ND is a nodal diameter count of the structural mode, and ? is a rotational speed of the rotating component, and wherein the flutter damper has the following impedance characteristic at the one or more targeted frequencies R?2?c ?3?c?X??0.6?c wherein R is the real part of the impedance characteristic, X is the imaginary part of the impedance characteristic, ? is air density, and c is speed of sound.

Abstract: A system includes a web plate axially disposed between a transition piece and a turbine nozzle. The web plate includes a radial arm extending in a radial direction between an inner surface and an outer surface of the web plate. The radial arm, the inner surface, and the outer surface are disposed about an axial passage configured to facilitate a flow of combustion products from the transition piece to the turbine nozzle. The transition piece is disposed within a compressor discharge cavity configured to receive an oxidant. The radial arm includes an upstream face in fluid communication with the compressor discharge cavity. The radial arm also includes an arm passage that extends an axial length in an axial direction from the upstream face through at least an axial depth of the radial arm. The arm passage is configured to receive a portion of the oxidant through the upstream face.

Abstract: The turbine housing assembly includes a housing surrounding a plurality of turbine shroud segments mounted to support members of the housing. Impingement holes extend through the housing and have outlet openings communicating with a cavity between the shroud segments and the support. A deflector rail protrudes axially away from the support members into the cavity. The deflector rail defines a flow-redirecting surface to redirect the cooling air flow from the impingement holes radially outwardly, away from the turbine shroud segments.

Abstract: A component having a hybrid coating system is provided. The component includes a substrate having a surface and a hybrid coating system including a sheet disposed on the surface and a skin. The sheet includes a plurality of interlocking members. The skin includes a plurality of features corresponding to the interlocking members. The skin is engaged to the sheet in an interlocking manner via the interlocking members and the features. A method for forming a component with a hybrid coating system is also disclosed.

Abstract: A device for cooling a rolling bearing (112), in particular for a turbine engine, the device comprising an annular bearing support (124) comprising a substantially cylindrical wall (134) of which an inner peripheral face (136) is configured to surround an outer ring (122) of said rolling bearing. The wall is provided with means (132) for dispensing cooling fluid that comprise a fluidic network for circulating said fluid and for supplying annular cooling grooves (144) of the bearing with fluid.