Abstract: A system and method of producing steam is provided. The system includes a support module and a steam module. The support module is configured to supply air, water and fuel. The steam module includes a casing defining a hollow interior that is fluidly coupled to receive water from the support module. An interface module is provided having a first conduit made from flexible tubing that is fluidly coupled to receive fuel from the support module. The interface module further having a second conduit being made from flexible tubing that is fluidly coupled to receive air from the support module. A combustor is coupled to and spaced apart from the interface portion, the combustor being fluidly coupled to receive fuel from the first conduit and air from the second conduit. A steam generator is coupled to an end of the combustor.

Abstract: Systems and methods for removing sand from fluid in a subterranean hydrocarbon development well include producing a cyclonic flow pattern of a sandy fluid of the subterranean well within a wellbore of a subterranean well with tangentially formed openings along a fluid flow path of the sandy fluid. The cyclonic flow pattern causes sand traveling in the sandy fluid to fall downhole as separated sand, and causes a de-sanded fluid stream to be directed uphole towards a production tubing. The de-sanded fluid stream is produced through the production tubing. The separated sand is collected proximate to a suction end of a progressing cavity pump. The progressing cavity pump is operated so that the separated sand flows through the progressing cavity pump and out a discharge end of the progressing cavity pump, to produce the separated sand through a sand discharge tube.

Abstract: A method for reducing a carbon emissions intensity of a fuel includes producing a first hydrocarbon fluid; capturing a carbon dioxide (CO2) fluid from the first hydrocarbon fluid production; and injecting the captured carbon dioxide into a subterranean zone from one or more wellbores to enhance a production of a second hydrocarbon fluid from the zone, at least one of the first or the second hydrocarbon fluids processable into a hydrocarbon fuel that includes a low carbon intensity fuel based, at least in part, on the captured and injected CO2 fluid.

Abstract: A light-weight kit for lifting vehicles, configured to be removably added to and used with a two-post vehicle lift by one person with no tools or with just conventional hand tools. A kit may include a pair of support beams each extending longitudinally from a front end to a back end and each comprising at least two arm connection structures each configured to removably engage and be supported by the vehicle support pad structures on the ends of the arms of the vehicle lift. A pair of baskets may be configured to support a vehicle each have an upwardly-concave cross-section extending between first and second transversely spaced hanging structures configured to be removably and selectably attached with and supported by the support beams at longitudinally-spaced mounting positions on the support beam.

Abstract: A borescope includes a housing extending from a first end toward a second end, the housing including a first transparent viewing section extending circumferentially around a longitudinal axis of the housing and defining an exterior of a portion of the housing; a first imaging assembly configured to rotate about the longitudinal axis of the housing, and also pivot relative to the longitudinal axis of the housing; and a second imaging assembly disposed within the housing, the second imaging assembly being configured to rotate about the longitudinal axis of the housing, wherein the second imaging assembly is configured to visualize a field of view exterior of the housing through the first transparent viewing section.

Abstract: A method may include preparing a map of cement quality for one or more intervals of a wellbore; determining anticipated regions of fluid communication and anticipated regions of zonal isolation from the map of cement quality; and designing a stimulating treatment based on the presence of regions of fluid communication.

Abstract: A surface excitation ranging method includes installing a customized grounding arrangement for a power supply located at earth's surface, wherein the customized grounding arrangement fulfills an impedance criteria or ranging performance criteria. The method also includes conveying an electrical current output from the power supply along a target well with a metal casing. The method also includes sensing electromagnetic (EM) fields emitted from the target well due to the electrical current. The method also includes using distance or direction information obtained from the sensed EM fields to guide drilling of a new well relative to the target well.

Abstract: An optical-fiber-containing sensor wire with at least one hermetically sealed optical fiber are provided. An optical-fiber-containing sensor wire may be installed in a cable that can be placed downhole in a wellbore. The optical-fiber-containing sensor wire may include a first optical fiber hermetically sealed within a metallic structure of the optical-fiber-containing sensor wire.

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: Determining that a minimum circumferential hoop stress (???MIN) of a wellbore drilled into a subsurface formation is less than or equal to a tensile strength (To) of formation rock in the wellbore; determining that a lamination density (DL) of the formation rock is greater than a threshold lamination density (DLthres); determining that a composition of the formation rock is a clay rich laminate; determining that a linear swelling ratio (LSR) of the formation rock is within a specified range; and in response to the determinations, operating the well to inhibit the occurrence of broken-out drilling-induced fractures (BODIFs).

Abstract: Methods are provided for determining saturation parameters of a formation while sampling the formation. Flow rate and pressure data may be used in order to provide mobility information close to the probe. In turn, the mobility information may be used in conjunction with at least water fraction information in order to provide an estimation of saturation parameters of the formation such as maximum residual oil saturation Sorm, connate water saturation Swc, and residual water saturation Swr. Resistivity measurements may be used to help in the estimation of the saturation parameters. Initial estimations may be used as the starting parameters for a full parameter inversion. An interpretation scheme in the absence of invasion details is provided.

Abstract: A mining machine assembly includes a dipper having a main body, the main body having a front side, a back side, a bottom side, and a top side. A ground engagement portion extends from the front side, the ground engagement portion including digging teeth. The mining machine assembly also includes a hoist rope attachment assembly coupled to the dipper. The hoist rope attachment assembly is configured to directly couple a hoist rope to the dipper. The hoist rope attachment assembly includes a cam having a first portion extending from the top side of the main body of the dipper, and a second portion that extends from the first portion and away from the main body and digging teeth.

Abstract: A device for the installation of rock bolts includes a supporting structure and first and second bolting units mounted to the supporting structure. Each bolting unit is configured for drilling an installation hole and/or for installing a rock bolt into a rock face, wherein the supporting structure is configured for rotatably moving the first and second bolting units about a common axis of rotation. At least one actuator is mounted to the supporting structure and configured for additionally moving at least one of the first and second bolting units.

Abstract: A method to repair a turbomachine including: assign blades and a shroud in a row of the turbomachine to a group; measure, for each blade in the group, a clearance between a tip surface of the blade and a surface of the shroud facing the tip surface; remove the blades and shroud from the row; calculate a difference between the clearance of associated each blade and a design clearance; determine, for each blade, if the difference may be minimized by adding material to the surface of the shroud; adding material to the surface of the shroud, wherein the addition of material to the facing surfaces results in the shroud having at least one dimension that exceeds an original design dimension of the shroud sections, and installing the group of the blades and the shroud with the added material to a row of a turbomachine, wherein at least one of the blades has at least one dimension that does not conform to an original design specification for the blade.

Abstract: Fan blade platform includes axially extending I beam supporting radially outer skin having flowpath surface. I beam includes upper and lower or radially outer and inner I flanges on radially outer and inner beam ends of axially extending I web. Radially outer skin on top of and bonded or otherwise attached to radially outer I flange. I beam may be integral and monolithic and made from a non-metallic composite or thermoplastic material and have post cure formed weight relief holes. I beam may include oppositely facing or back to back first and second C beams. First C beam including axially extending first C web disposed between radially outer and inner first C flanges. Second C beam including axially extending second C web disposed between upper and lower or radially outer and inner second C flanges. I beam may be asymmetrical about center plane of I web.

Abstract: A center vent tube aligning mechanism which aligns a center vent tube inserted into a hollow shaft is provided with: an annular portion which is coaxially provided with the center vent tube in an outer side of the center vent tube in a radial direction thereof; a flexible portion which protrudes in a direction along an axis of the center vent tube from the annular portion; an abutting portion which is connected to the flexible portion and which abuts an inner circumferential surface of the shaft; and a cylindrical sleeve which surrounds the center vent tube from the outer side in a radial direction of the center vent tube and which is supported by a reaction force that the abutting portion receives from the inner circumferential surface of the shaft.

Abstract: A blisk assembly for vibration dampening includes a disk portion extending circumferentially about a central axis of the blisk, a plurality of blades integrally coupled to the disk, and a piezoelectric damping ring that includes a damping ring and a plurality of piezoelectric elements coupled to the damping ring. The disk portion includes a groove configured to receive the piezoelectric damping ring. As a result of centrifugal forces applied to the piezoelectric damping ring during rotation of the blisk assembly, mechanical energy may be generated at one or more of the plurality of piezoelectric elements, which is converted to electrical energy and transmitted to another one or more of the plurality of piezoelectric elements. Accordingly, the one or more of the piezoelectric elements having received the electricity can convert the electricity to mechanical energy to provide vibration damping.

Abstract: A fan blade having a damping system is provided. The fan blade comprising: a fan blade body having one or more compartments within the fan blade body; a damping material located within at least one of the one or more compartments; one or more partial ribs originating at the fan blade body and extending into at least one of the one or more compartments, wherein each of the one or more partial ribs terminate at a distal end; and one or more damping plates, wherein each of the one or more damping plates are attached to a distal end of a partial rib, wherein the damping material is located between the damping plate and the fan blade body.

Abstract: A gas turbine engine component includes spaced apart walls that provide a cooling passage that extends in a first direction. A cross-over rib joins the walls and extends along the first direction. The cross-over rib has holes that extend in a second direction transverse to the first direction. A row of at least one pedestal joins the walls and extends along the first direction. The row and the cross-over rib overlap one another in the second direction.

Abstract: A turbine rotor assembly includes a rotor shaft and rotor blades. The rotor shaft includes two protrusions, two bearing surfaces, two first facing surfaces, and two second facing surfaces positioned on the outer side of the first facing surfaces. The blade root section of each of the rotor blades includes two contact surfaces which are contactable with the two bearing surfaces in the radial direction of the rotor shaft, respectively, two first side surfaces each facing a corresponding one of the two first facing surfaces, two second side surfaces each facing a corresponding one of the two second facing surfaces, and two flange sections which are each positioned adjacent to the outer circumferential surface of a corresponding one of the two protrusions.

Abstract: Bayonet connection key includes upper and lower blocks shaped to be inserted one at a time into a key space, having laterally spaced apart upper and lower flat first and second side contact surfaces, and means for retaining blocks against each other. Bolt or screw may be disposed through an aperture in retaining plate and screwed into threaded hole in upper block pressing retaining plate against lower block. Upper block may include axially spaced apart upwardly extending forward and aft lugs, aft lug shorter than forward lug, and inwardly extending upper stop lug at aft end of upper block. Alternatively bendable tab extending axially forward from a front end of the lower block may be bent up contacting upper block for retaining blocks in key space. Upper block may include forward and aft lugs of same radial length and inwardly extending stop lug at aft end of lower block.

Abstract: A seal structure includes: a first member and a second member facing a combustion gas flow passage; a third member on an outer side of the combustion gas flow passage; a heat-resistant coating on at least one of a first end face and a second end face, both of the first end face and the second end face being closer to the combustion gas flow passage; and a contact part in each of the first end face and the second end face, further on the outer side of the combustion gas flow passage than the heat-resistant coating. The contact part is configured to restrict relative movement of the first member and the second member by directly or indirectly coming into contact with the first member and the second member in a state where a clearance is left between the heat-resistant coating and the end face facing the heat-resistant coating.

Abstract: A containment structure for a gas turbine engine includes a stator shroud with a wall. The stator shroud wall extends axially between a shroud inlet aperture and the shroud outlet aperture. The wall includes a stainless steel alloy material having less than 44% nickel by mass to provide containment protection for an impeller rotateably disposed within an interior of the stator shroud.

Abstract: A seal assembly for a rotatable component having an axis of rotation. The seal assembly may include a first seal mounted to a housing and configured to be in sealing engagement with the rotatable component, a second seal mounted to the housing an axial distance apart from the first seal and configured to be in sealing engagement with the rotatable component, wherein the axial distance is parallel with the axis of rotation, a buffer fluid chamber defined between the first seal and the second seal, and a buffer fluid inlet in fluid providing communication with the buffer fluid chamber.

Abstract: A stator vane rail is provided. The stator vane rail may comprise a forward rail, an aft rail located axially opposite the forward rail, a first axial surface extending between the forward rail and the aft rail, a first feather seal slot disposed in the first axial surface, wherein a terminus of the first feather seal slot is radially spaced from a radial surface of the aft rail, a second axial surface extending between the forward rail and the aft rail, and a second feather seal slot disposed in the second axial surface, wherein the second feather seal slot extends from the radial surface of the aft rail.

Abstract: Platforms for gas turbine engines are described. The platforms include a flow structure having a gaspath surface and a non-gaspath surface with a front end, a rear end, a first edge, and a second edge. A platform connector extends from the flow structure. A first layer forms a part of the gaspath surface and is a non-continuous layer terminating at the ends and the edges. A second layer forms a part of the platform connector and is a non-continuous layer terminating at the ends and the edges. The second layer contacts the first layer proximate the first and second edges. A third layer defines an internal void and is a continuous layer arranged between the first layer and the second layer and defines a part of the flow structure and a part of the platform connector.

Abstract: A sealing system for sealing a gap between two adjacent components includes a first component including a sealing face, a second component, and a seal cap. The second component includes a seal ridge extending from a surface of the second component towards the sealing face, and a fluid conduit extending through the second component and the seal ridge, the fluid conduit configured to channel a seal activating fluid from a fluid source. The seal cap is configured to matingly engage the seal ridge, and includes an end wall positionable between the sealing face and the seal ridge, and a pair of seal legs extending from the end wall towards the surface of the second component.

Abstract: A sealing structure that seals a clearance between an outer peripheral surface of a rotor and an inner peripheral surface of a stator. The sealing structure includes: a plurality of step portions that are provided on a first surface which is one of the outer peripheral surface of the rotor and the inner peripheral surface of the stator so as to be arranged in the axial direction, and that protrude from the first surface toward a second surface which is the other of the outer peripheral surface of the rotor and the inner peripheral surface of the stator; and a seal fin that is provided on the second surface, and that forms a small clearance between a corresponding peripheral surface of the step portions. A portion in the vicinity of a tip of the seal fin in the radial direction is inclined toward the upstream side.

Abstract: An inner shroud segment may include an inner housing and an outer housing. The inner housing may have a radial curve centered relative to an axis with a radial wall and a bottom wall that define a first channel. The outer housing may have a first axial wall, a first circumferential wall, and a second axial wall that define a second channel. The outer housing may also be disposed within the first channel with the radial wall of the inner housing contacting the first axial wall, the first circumferential wall, and/or the second axial wall. A compliant material may be disposed within the second channel and coupled to the radial wall and the first axial wall, the first circumferential wall, and/or the second axial wall.

Abstract: An assembly adapted for use in a gas turbine engine has a carrier component and a supported component. The assembly includes a mounting system for coupling the supported component to the carrier component. In an illustrative embodiment, the assembly is a turbine shroud segment for blocking gasses from passing over turbine blades included in the gas turbine engine.

Abstract: A blade outer air seal may comprise an arcuate segment. The arcuate segment may comprise an aft wall having a first radially extending protrusion at a circumferential end of the aft wall. A first hook may extend aft from the aft wall. A first gusset may extend from the first radially extending protrusion. A radial height of the first radially extending protrusion may be greater than a radial height of a second radially extending protrusion of the aft wall.

Abstract: An example active clearance control system for a gas turbine engine includes an actuator, and a case wall portion defining an aperture configured to receive the actuator. The actuator is configured to move an air seal segment, and the actuator is insertable to an installed position within the aperture through a radially outer side of the case wall portion.

Abstract: An active clearance control system of a gas turbine engine includes a radially adjustable blade outer air seal system movable between a radially contracted Blade Outer Air Seal (BOAS) position that defines a first air volume and a radially expanded Blade Outer Air Seal (BOAS) position that defines a second air volume, the second air volume different than the first air volume. An accumulator system accommodate a difference in air volume between the first air volume and the second air volume.

Abstract: The invention provides a drain to allow water to flow out of a pressure sensing line. The drain comprises a tube including a plurality of restrictors in flow series, each restrictor comprising a constriction whose internal diameter is less than the internal diameter of the tube.

Abstract: A valve system includes: a valve device with a flow path and a valve body that opens and closes the flow path; and a drive mechanism that drives the valve body. The drive mechanism includes: a cylinder case; a cylinder chamber that extends in an axis direction and is formed inside the cylinder case; a piston that divides the cylinder chamber into a first chamber on a first side in the axis direction and a second chamber on a second side in the axis direction; an inflow port through which working fluid flows to the inside of the first chamber; an elastic member disposed inside the second chamber and that pushes the piston to the first side; a bypass passage that connects the first chamber and the second chamber; and an on-off valve that opens and closes the bypass passage.

Abstract: A variable vane assembly for a gas turbine engine includes a case having a bore and a recess. The case provides a first portion of a flow path surface. A vane includes a journal that extends along an axis from a vane end and received in the bore. An insert is arranged in the recess and provides a second portion of the flow path surface adjacent to the first flow path surface. The insert includes a pocket that slidably receives the vane end. The vane end is configured to move axially relative to the insert.

Abstract: Systems for monitoring a component in a turbomachine can include a strain sensor comprising at least two reference points disposed on a surface of the component, and a data acquisition device connected to the turbomachine comprising a field of view, wherein the field of view is positioned to at least periodically capture the strain sensor on the component.

Abstract: A low profile embedded BTC probe may comprise a housing having a cavity disposed radially outward of a blade, a lower insulator disposed within the cavity, a sensor element disposed within the cavity, an upper insulator disposed within the cavity, a cap wherein the cap fills a remainder of the cavity, and a hard lead in electronic communication with the sensor element and the housing.

Abstract: A gas turbine includes a main shaft connecting a turbine to a compressor and an additional shaft extending coaxially to the main shaft. The additional shaft has a first shaft section connected to the compressor and a second shaft section connected to the turbine, the shaft sections separated from each other by a gap. At mutually facing ends, the two shaft sections have mutually corresponding structures. The gap been the two shaft sections is dimensioned such that, upon a break of the main shaft, the mutually corresponding structures of the mutually facing ends of the two shaft sections come into interaction and rotate relative to one another as a result of their differing rotational speeds. The mutually corresponding structures are formed such that the two shaft sections are moved away from one other in the event of twisting of the two shaft sections.

Abstract: An airfoil for a gas turbine engine includes a cavity including an internal surface of an outer wall. A baffle is disposed within the cavity and spaced apart from the internal surface. A partition is disposed between the baffle and the internal surface to divide a space between the baffle and the internal surface into at least a first passage and a second passage. A gas turbine engine is also disclosed.

Abstract: A turbine engine unit for lubricating a bearing holder. A turbine engine unit is provided, including an inter-turbine housing that includes a hub including a bearing holder, a ferrule extending around and at a distance from the hub, at least one arm extending radially between the hub and the ferrule, and at least one lead-through for lubricating the bearing holder. The lead-through includes a first pipe having an end portion that can be screwed onto the hub so as to place the first pipe in fluid communication with the bearing holder, an intermediate portion secured to the end portion placed inside the arm when the end portion is screwed onto the hub, and a clamping portion secured to the end portion and rotatable by a clamping tool. The turbine engine unit is characterized in that the clamping portion is located between the screwable end portion and the intermediate portion. A corresponding turbine engine unit assembly method is also provided.

Abstract: A turbocharger includes: a bearing housing (housing); a bearing disposed in the housing and having a thrust bearing surface; and a partition wall portion assembled to the housing, the partition wall portion including an inclined surface positioned on an outer side in a radial direction of the thrust bearing surface, extending at least vertically above the thrust bearing surface, and inclined with respect to a direction perpendicular to the axial direction of a shaft.

Abstract: A system for regulating condensation of a flue gas in a steam generator is provided. The system includes a temperature controller and a flue gas analyzer. The temperature controller is configured to control a temperature of a component of the steam generator, the component being in heating-contact with the flue gas. The flue gas analyzer is configured to communicate with the temperature controller and to obtain a measurement of an amount of an acid-forming compound in the flue gas. The temperature controller adjusts the temperature of the component based at least in part on the measurement such that the temperature of the component is above an acid dew point of the flue gas when the component is in heating-contact with the flue gas.

Abstract: A gas turbine plant including a gas turbine and a compressor is provided with a steam turbine plant including a steam turbine and a condenser, and, an exhaust heat recovery boiler. Steam from the exhaust heat recovery boiler is directly flown to the condenser of the steam turbine plant through a bypass control valve. A pressure sensor detects pressure in a turbine bypass system. A controller outputs, based on a set value from an input device and a process value from the pressure sensor, an open level instruction value to the control value so as to make the process value consistent with the set value in a predetermined sampling cycle. A corrector corrects the set value from the input device in a direction in which the open level instruction value decreases when the open level instruction value from the controller becomes a value that substantially fully opens the control valve.

Abstract: A system for recycling heat or energy of a working medium of a heat engine for producing mechanical work is described. The system may comprise a first heat exchanger (204) for transferring heat from a working medium output from an energy extraction device (202) to a heating agent to vaporise the heating agent; a second heat exchanger (240) for transferring further heat to the vaporised heating agent; a compressor (231) coupled to the second heat exchanger (240) arranged to compress the further-heated heating agent; and a third heat exchanger (211) for transferring heat from the compressed heating agent to the working medium. A heat pump is also described.

Abstract: The invention relates to a clamping nest for positioning a component on a shaft, and joining it thereto. The component here has a central part with a circular-cylindrical aperture for accommodating the shaft. The clamping nest has a fork-shaped region for accommodating the component, wherein the fork-shaped region comprises a plurality of clamping elements, which secure the angled position of the component within the fork-shaped region. The fork-shaped region also comprises two opposite bearing surfaces, which secure the axial position of the component in a form-fitting manner in both axial directions.

Abstract: Aspects of the present disclosure are directed to valve clearance adjustment systems and related methods that can be used to quickly and easily establish and accurately fix a desired gap between valve stems and associated valve adjustment screws attached to rocker arms, such as may be used with intake valves, exhaust valves, and fuel-injection mechanisms, among others, within, e.g., an internal combustion engine. Various alternative implementations and related methods are provided.

Abstract: Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock a helix rod during cam torque pulses.

Abstract: A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, a coupling, and at least one timing wheel connected to at least one of the first or second camshaft phaser. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The coupling includes a coupling ring and at least one coupling pin that torsionally connects the first camshaft phaser to the second camshaft phaser. The coupling provides for radial and axial movement between the first camshaft phaser and the second camshaft phaser.

Abstract: An engine variable camshaft timing phaser (10) includes a sprocket (12) and a planetary gear assembly (14). The sprocket (12) receives rotational drive input from an engine crankshaft. The planetary gear assembly (14) includes two or more ring gears (26, 28), multiple planet gears (24), a sun gear (22), and a wrap spring (76). One of the ring gears (26, 28) receives rotational drive input from the sprocket (12) and one of the ring gears (26, 28) transmits rotational drive output to an engine camshaft. The sun gear (22) engages with the planet gears (24). The wrap spring (76) experiences expansion and contraction exertions to permit advancing and retarding engine valve opening and closing, and to prevent advancing and retarding engine valve opening and closing.