Abstract: A main bore is drilled with an inclined section extending toward a hydrocarbon bearing earth formation. First and second laterals are drilled from the inclined section downward into the formation at a steeper angles than the inclined section. The first lateral is opened to the formation at a depth greater than a depth of an opening of the second lateral. After completion, well fluid flows through the openings in the first and second laterals into the inclined section of the main bore. In response to an increasing water content in the well fluid flowing up the main bore, the flow of well fluid from the first lateral is restricted.

Abstract: A plunger with expandable mating pad elements arrayed circumferentially about the plunger's body sealed to the plunger and biased to expand the plunger assembly's outer circumferential surface toward the inner surface of the tubular within which the plunger assembly is designed to operate. The gaps between the pad elements are minimized by having the adjacent pad elements slidable against each other along two sets of surfaces along essentially the length of the interface between adjacent pad elements, one surface set being approximately axial to the plunger and the other set being approximately radial to the plunger's longitudinal axis, and in this way reducing the available pathway in the gap between adjacent pad elements for fluid to bypass the plunger assembly.

Abstract: A well has a wellbore extending from a surface. Tubing extends within the wellbore for supporting a downhole pump. Sucker rods extend within the tubing for reciprocating a travelling valve. A load calculator determines loading on the sucker rods during a pump cycle. A variable speed driver reciprocates the sucker rods and travelling valve. A real time speed controller varies a speed of the driver in response to loading information from the load calculator for smoothing the rod load in a beam pump cycle. A target rod load is obtained and a surface linear speed of rods is varied by either slowing or speeding a driver for varying a surface linear speed of the rods when rod loading is above or below the target rod load.

Abstract: Embodiments of the present disclosure generally relate to a hydraulic pump with gas lock prevention. The pump includes a pump barrel having an intake port and a discharge port and a pump piston movably disposed in the pump barrel. The pump piston divides an inner volume of the pump barrel into a first pump volume connected to the discharge port and a second pump volume connected to the intake port. A pump flow path is formed through the pump piston connecting the first pump volume and the second pump volume. The pump further includes a first valve disposed in the pump flow path in the pump piston. The first valve selectively permits fluid flow from the second pump volume to the first pump volume. The pump further includes a second valve disposed at the discharge port to selectively permit fluid flow out of the first pump volume through the discharge port.

Abstract: An apparatus and method for the extraction of hydrocarbons from an underground reservoir using a well is disclosed. The apparatus comprises a power source operable to supply periodic electrical power at a first frequency; at least one impulse generator unit operable to convert the periodic electrical power at the first frequency into periodic electrical power at a second frequency and to couple electromagnetic energy generated by the periodic electrical power at the second frequency into the reservoir, the second frequency being at least ten times higher than that of the first frequency; and a conducting cable being operatively coupled between the power source and the at least one impulse generator unit.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: A hydraulic fracturing system for fracturing a subterranean formation includes a support structure that includes an electric powered pump, arranged in a first area, the electric powered pump powered by at least one electric motor, also arranged in the first area. The system further includes a variable frequency drive (VFD), arranged in a second area proximate the first area, connected to the at least one electric motor to control the speed of the at least one electric motor. The system includes a transformer, arranged in a third area proximate the second area. The system also includes a slide out platform integrated into the first area, the slide out platform being driven between a retracted position and a deployed position.

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: Described herein are a pressure-sealed detector housing for securing a detector, such as a gamma ray detector in a tool for use in a wellbore. A detector housing is described which includes a body portion with an internal cavity to receive the detector, and having flanges extending therefrom. The flanges can extend, in some cases, generally alongside at least a portion of the internal cavity. Flanges may have one or more mounting holes for mounting the housing to a tool. An opening will be provided in the detector housing to provide access to the internal cavity to facilitate placement of the detector therein. A closure device is coupled into the opening to substantially seal the opening and provide electrical connections to the detector.

Abstract: A telemetry system is operable to transmit data by bridging the low signal bandwidth available to high temperature electronics with the high spectral bandwidth available in optical fiber. A transmitter, such as a frequency comb, generates light to a fiber and the light is demultiplexed to separate the light into separate wavelengths. Modulators encode downhole data onto each wavelength and a multiplexer recombines the wavelengths onto a single fiber that passes the light back to the surface where a second demultiplexer separates the light to be transmitted to distinct receivers that detect the encoded data. A dual fiber system may also be utilized. One or more commands may also be transmitted to the downhole tools by transmitted the encoded command to a coupler that is coupled to a multiplexer where a downhole receiver determines the downhole tool that should receive the associated command.

Abstract: In accordance with presently disclosed embodiments, a method and system for performing real-time evaluation of a restimulation operation using coiled tubing with fiber optics is provided. The method involves performing a restimulation treatment by pumping a slurry with diverter materials through an annulus in the wellbore surrounding the coiled tubing, and using fiber optics in the coiled tubing to identify the order and magnitude of fractures being created during the restimulation treatment. The fiber optics in the coiled tubing may include one or more fiber optic cables designed to collect distributed acoustic sensing (DAS) or distributed temperature sensing (DTS) data. The evaluation of the restimulation operation may be used to validate and/or adjust the restimulation treatment as needed to improve the lateral distribution of transverse fractures through a subterranean formation. The coiled tubing may also be used to remove sand bridges from the wellbore throughout the restimulation treatment.

Abstract: Transient responses of a tri-axial resistivity tool corresponding to an electromagnetic (EM) impulse are derived. A transient response of a directional resistivity tool (DRT) corresponding to the EM impulse is derived based on the transient responses of the tri-axial resistivity tool. A theoretical late time transient response of the DRT is derived based on the transient response of the DRT. The late time transient response of the DRT is measured. An anisotropy, a horizontal conductivity, and a dip angle are determined based on the measured late time transient response and the theoretical late time transient response.

Abstract: Systems and methods are disclosed that provide highly accurate and controllable measurements of rock formation properties in a wellbore. The systems and methods utilize a prescribed input signal to mechanically perturb a drill string in contact with a rock formation in order to elicit a mechanical response. Based on the input signal and the mechanical response, a transfer function is computed and analyzed, wherein the analysis uses estimates of the drill string resonances to identify rock formation resonances, which are used, in turn, to determine the rock formation properties.

Abstract: Methods and systems for designing, monitoring, and/or performing acidizing treatments in subterranean formations are provided. In certain embodiments, the methods comprise: determining a wellbore pressure and a fluid flow distribution for an acidizing fluid introduced into a portion of a subterranean formation; determining a breakthrough pore volume at a plurality of depths in the formation to provide a PVBT curve; determining whether a slope of the PVBT curve at a point corresponding to a first flow rate of the acidizing fluid in the subterranean formation is indicative of a compact dissolution regime, e.g., is less than zero or a minimum point of a range of tolerance thereof; and, if so, identifying a second flow rate for introducing the acidizing fluid into the interval of the well bore that is greater than the first flow rate.

Abstract: A downhole local solid particles counting probe (1) for counting solid particles (101) in a fluid (100) present in a hydrocarbon well in production comprising: an elongated and flexible protective tube (2) defining an internal cavity (5) terminating by a membrane wall (3) defining a tip (4), the protective tube (2) and the membrane wall (3) isolating the internal cavity (5) from the fluid (100) of the hydrocarbon well, the protective tube (2) and membrane wall (3) are made of metal or metal alloy and have a thickness (ei) such as to resist to the downhole hydrocarbon well pressure; a passive acoustic sensor (6) mounted inside the internal cavity (5), the passive acoustic sensor (6) having a front side (7) mechanically coupled on the membrane wall (3) of the tip (4); a characteristic dimension of the passive acoustic sensor (6) is similar to solid particles (101) average characteristic dimension, ranging from 0.5 mm to 1.

Abstract: Construction element for creating a tunnel, including a first incompressible layer of concrete and a second compressible layer securely fastened to the first layer to form a monoblock prefabricated construction element configured to be integrated in a section of the tunnel during creation of the tunnel, the second layer including a plurality of devices each having a solid body integrating an empty space.

Abstract: A load bearing support includes a cylindrical drum. A top portion, a bottom portion, a tapered cylindrical sidewall extends between the top and bottom portions. A core member extends between the top and bottom portions, and a load-bearing material is disposed between the sidewall and the core member. An opening extends through the top portion of the drum to receive load-bearing material. Each of the top portion and the bottom portions has a reinforcing chime. The core member includes a lateral transfer zone defined at one or more points along a vertical axis of the core member. The lateral transfer zone distributes an axial load on the drum to the cylindrical sidewall. The cylindrical sidewall provides a radial expansion area for compression of the core member and the load-bearing material.

Abstract: A hydraulic support unit and a hydraulic support for anti-rock burst roadway. The hydraulic support unit includes a base, a top beam, and a hydraulic support column, the top beam is positioned above the base in a spaced manner; the hydraulic support column are disposed between the base and the top beam; a side guard plate and a first base hydraulic cylinder are disposed on the left side and right side of the base, the side guard plates are rotably connected to the base, the two ends of the first base hydraulic cylinder are hinged to the base and the side guard plate respectively, the first base hydraulic cylinder can drive the side guard plate to transit between a horizontal state and a vertical state, and the bottom surfaces of the side guard plates are flush with the bottom surface of the base in the horizontal state.

Abstract: The present invention provides a safety system (1) for protecting against a hazard of a drill rod failure in a drilled rock bore (B) above horizontal, and especially a hazard posed by a broken drill rod section (S) lodged within the bore (B). The safety system (1) comprises: a plug member (2) for insertion into a proximal end region (E) of the bore (B) adjacent a rock-face (F), the plug member (2) being configured to be fixed within the proximal end region (E) of the bore (B); and an impact reduction member (5) for reducing an impact of the broken drill rod section (S) striking the plug member (2) within the proximal end region (E) of the bore (B). The impact reduction member (5) is configured to be located within the proximal end region (E) of the bore (B) and to extend within the bore (B) above the plug member (2).

Abstract: A system for forming a cavity in a backfill mixture comprising granular material and water positioned in an at least partially excavated stope. The system includes a base and a drainage tube assembly in an extended condition thereof. The drainage tube assembly extends between a lower end secured to the base and an upper end positioned above an upper surface of the backfill mixture. The extended drainage tube assembly includes a tube portion thereof with a permeable material and defining the cavity therein into which the water from the backfill mixture is drainable, through the permeable material. The system also includes a drainage pipe, for permitting the water that has drained into the cavity of the extended drainage tube assembly to exit the stope.

Abstract: A high efficiency uniflow steam engine having automatic poppet valves yieldably based by fluid such as steam held under pressure within a cavity in the engine and a cutoff control for closing a steam inlet valve at any time selected stops the flow of steam into the cylinder. Proximate the end of the exhaust stroke, around 0.12 inch before TDC the cylinder is sealed to thereby compress residual steam as the piston clearance approaches zero; typically, 0.020 inch which raises cylinder pressure enough to open an inlet valve without making physical contact to push the inlet valve open with the piston thereby eliminating a tappet type of noise, shock and wear.

Abstract: A rotary engine having a crankshaft, a housing provided with lobe accommodating portions arranged to surround the crankshaft, and combustion chambers communicating with the lobe accommodating portions, a rotor rotatable eccentrically with respect to the crankshaft and provided with lobes continuously accommodated in the lobe accommodating portions, a housing cover provided with a bearing portion through which the crankshaft is inserted so as to be rotatably supported, and a lubricating unit to supply oil to the bearing portion, wherein the lubricating unit includes an oil pan to accommodate oil therein, an oil pump to pump up oil filled in the oil pan, and an oil supply passage having both ends located in the oil pump and the bearing portion, respectively, is provided. This structure may allow direct and effective lubrication of the bearing portion, and can employ a journal bearing.

Abstract: A method of casting a rotor using a cavity and core mold allows a longitudinal slot oriented transversely to the axis of rotation to be finish ground to high precision and tight tolerances by casting the slot to have a wider section which extends from the axis to a radius greater than the radii of the hubs of the rotor, and a narrower section which extends from the wider section to the outer surface of the rotor. The geometrical relation of the slot sections to the hubs as cast permits the grinding step to be performed without forming a leak path in either of the hubs.

Abstract: Methods and features for repairing CMC components are provided. Methods include positioning a plurality of CMC plies at a damaged area of a CMC component and densifying the component and plies. For example, each ply may be a unidirectional ply positioned at the damaged area such that the plurality of plies is oriented in a plurality of directions. As another example, each ply may define a ply direction and comprise a plurality of ceramic fibers substantially extending along the ply direction, and the ply directions of at least two plies may be differently oriented. A repair patch for a CMC component also is provided that comprises a plurality of CMC plies. Fibers forming a first ply extend substantially along a first ply direction and fibers forming a second ply extend substantially along a second ply direction. The first and second plies of the repair patch are oriented in different directions.

Abstract: A gas turbine rotor includes a first rotor and a second rotor. The first rotor includes a compressor impeller, a turbine wheel, and a shaft. The turbine wheel has a common rotational axis with the compressor impeller. The shaft connects the compressor impeller to the turbine wheel. The second rotor is an electric generator rotor and defines an inner hollow space. The shaft includes an insertable portion disposed in the inner hollow space of the second rotor.

Abstract: A component for a gas turbine engine includes a platform that has a radially inner side and a radially outer side. A root portion extends from the radially inner side of the platform. An airfoil extends from the radially outer side of the platform. The airfoil includes a pressure side that extends between a leading edge and a trailing edge. A suction side extends between the leading edge and the trailing edge. A curvature inflection point is located between 30% and 70% of an axial chord length of the airfoil.

Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 2.85-3.15 inch (72.4-80.0 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.52-1.82 inch (38.6-46.2 mm). The airfoil element includes at least two of a first mode with a frequency of 506±10% Hz, a second mode with a frequency of 1732±10% Hz, a third mode with a frequency of 2268±10% Hz, a fourth mode with a frequency of 4007±10% Hz, a fifth mode with a frequency of 4851±10% Hz and a sixth mode with a frequency of 6416±10% Hz.

Abstract: An article of manufacture having a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in a scalable table identified as TABLE 1, wherein the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances by multiplying the Cartesian coordinate values of X, Y, and Z by a number, and wherein X and Y are coordinates which, when connected by continuing arcs, define airfoil profile sections at each Z height, the airfoil profile sections at each Z height being joined with one another to form a complete airfoil shape. The resulting article may be used as a stator vane in a compressor.

Abstract: An assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, an airfoil that has an airfoil section extending from a root section. The airfoil section extends between a leading edge and a trailing edge in a chordwise direction and extending between a tip portion and the root section in a radial direction. The airfoil section defines a pressure side and a suction side separated in a thickness direction. A platform is dimensioned to receive a retention pin to mount the platform to a rotatable hub. At least one of the airfoil and the platform includes a plurality of composite layers that define an internal cavity. A lattice structure in the internal cavity extends between the plurality of composite layers. The lattice structure has a plurality of branches that extend from a plurality of nodes.

Abstract: A rotor blade for a turbine of a gas turbine includes an airfoil. The airfoil may have a leading edge, a trailing edge, an outboard, and an inboard end that attaches to a root configured to couple the rotor blade to a rotor disc. The airfoil may have a cooling configuration that includes elongated cooling channels for receiving and directing a coolant through the airfoil. The rotor blade may further include: a tip shroud connected to the airfoil; outlet ports formed through an outboard surface of the tip shroud that fluidly communicate with the cooling channels; and flow directing structure formed on the outboard surface of the tip shroud. The flow directing structure may be positioned relative to the outlet ports and configured for directing the flow of coolant discharged from the outlet ports. The rotor blade may be useful to reduce local tip shroud temperature as well as improved stage aerodynamic efficiency by reducing the coolant supply needed to maintain the component at desired temperature levels.

Abstract: A component for a gas turbine engine according to an example of the present disclosure includes, among other things, a wall that extends about a cooling cavity. The cooling cavity is a dual-fed cavity that is fed from at least two different locations. A rib separates the cooling cavity into a first portion and a second portion that is fluidly isolated from the first portion. The component is an airfoil. The first portion is fed with a first cooling fluid from a first coolant source, and the second portion is fed with a second, different cooling fluid from a second coolant source. The first and second coolant sources are separate and distinct from the component.

Abstract: An airport having an exterior wall including a plurality of spaced layers for improved cooling and lifetime is disclosed. The airfoil and exterior wall are made by additive manufacturing. The exterior wall includes an exterior layer, an intermediate layer, and an interior layer each separated from adjacent layers by a plurality of standoff members; a plurality of first cooling chambers between the exterior and intermediate layers, the chambers partitioned by a first partitioning wall; a plurality of second cooling chambers between in the intermediate and interior layers, the chambers partitioned by a second partitioning wall; a thermal barrier coating on the exterior layer; a plurality of impingement openings in the intermediate layer and a second plurality of impingement openings in the interior layer; and a plurality of cooling passages in the exterior layer. The exterior layer may also include plateaus on an exterior face through which the cooling passages extend.

Abstract: An airfoil for a gas turbine engine according to an example of the present disclosure includes, among other things, an airfoil section extending from a first platform section. The airfoil section defines an internal core cavity for conveying a fluid flow, and a baffle assembly that has a first baffle and a second baffle. The first baffle includes a first baffle body extending in the internal core cavity. The first baffle body defines an internal baffle cavity. The second baffle includes a second baffle body dimensioned to extend from the platform section into the internal baffle cavity such that an outer periphery surface of the second baffle body and an external wall of the airfoil section cooperate to define a first cooling passage that directs cooling flow into the internal baffle cavity.

Abstract: A rotor blade for use in combustion turbine engine. The rotor blade may include: an airfoil assembled from two radially stacked non-integral sections in which a body section resides inboard of a cap section; an outboard tip of the airfoil that is enclosed by a tip plate having a tip rail; and a cooling configuration that includes cooling channels for directing a coolant through the rotor blade. Each of the cooling channels may include segments, in which: a supply segment extends radially through the airfoil, the supply segment being radially defined between a floor and ceiling; a rail segment extends through an interior of the tip rail; and a connecting segment extends between the supply segment and rail segment. For each of the one or more cooling channels, the ceiling of the supply segment may be defined within the cap section of the airfoil.

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 blade for a gas turbine engine includes composite layers including neck plies and tooth plies that are flared relative to the neck plies. The neck plies and tooth plies respectively provide a neck and a root. The root includes a tooth. A Wedge is provided by wedge plies adhered over the root and the tooth.

Abstract: An interlocking shroud assembly for a turbine engine includes at least two shroud elements, each having confronting radial ends that define a split interface with axial fore, aft, and circumferential portions.

Abstract: A vane stage segment is provided including an outer wall segment, an inner wall segment, and an airfoil. The outer wall segment is configured to be coupled to other outer wall segments to form an outer wall of the vane stage. The inner wall segment is spaced radially inward from the outer wall segment. At least one of the inner wall segment or the outer wall segment is separable between a forward portion and an aft portion. The airfoil extends between the outer wall segment and the inner wall segment.

Abstract: A turbocharger assembly for an internal combustion engine, in particular of a commercial vehicle, has a turbocharger with a turbine housing. The turbocharger assembly additionally has an exhaust-gas pipe. The exhaust-gas pipe is arranged downstream of the turbine housing. The exhaust-gas pipe has a diffusor region and an exhaust-gas manifold region.

Abstract: A gas turbine having an annular flowpath defined between concentric inner radial and outer radial boundaries. A plenum is positioned just outboard of the outer radial boundary that wraps circumferentially in spaced relation thereto. The height of the plenum is defined radially between a floor and ceiling. The plenum includes an inlet formed through the ceiling at a first end and spaced outlet ports formed through the floor. The plenum includes a divider baffle that spans the width of the plenum and extends between the first end and the second end of the plenum so to divide the plenum into radially stacked first and second compartments. The first compartment connects directly to the inlet, while the second compartment connects directly to the outlet ports. The height of the first compartment tapers between a greater height at the first end and a lesser height at the second end of the plenum.

Abstract: A seal system for a gas turbine vane includes a first seal layer and an optional second seal layer. Each first seal layer includes multiple seal segments, each of which includes a first leg, a second leg, and an intermediate portion between the first leg and the second leg. Each adjacent pair of seal segments of the first seal is separated by a gap. The seal segments define a substantially complete perimeter of a seal slot in which the first seal is installed. The second seal, which is also segmented, may or may not define the substantially complete perimeter of the seal slot. If present, the second seal segments are circumferentially offset from the first seal segments to block the gaps between the first seal segments. A turbine vane including the present seal system is also disclosed.

Abstract: A toggle seal, for use with a rim seal, including: a seal body, a proximal end and a distal end, a first end seal extending in a first axial direction from the proximal end of the seal body, a second end seal extending in the first axial direction from the distal end of the seal body, a first protruding portion extending in a second axial direction from the proximal end, opposite of the first end seal, and a second protruding portion extending in the second axial direction from the distal end, opposite of the second end seal, wherein the first end seal is configured to operatively engage the wheel disk and the second end seal is configured to operatively engage the at least one blade.

Abstract: A steam turbine is provided. The steam turbine includes a housing, a first steam inlet configured to discharge a first steam flow within the housing, and a second steam inlet configured to provide a second steam flow. A rotor and stator are coupled to the housing and configured to form a first flow path therebetween and in flow communication with the first steam flow. The rotor includes a plurality of blades coupled to the rotor, at least one root of the plurality of blades has a first side, a second side and a passageway coupled in flow communication to the first side and the second side. The passageway is configured to receive the second steam flow within the at least one root. The at least one root includes an angel wing configured to seal the second steam flow from the first flow path.

Abstract: The present disclosure is directed to a gas turbine engine including a turbine rotor assembly that includes a first turbine rotor and a second turbine rotor. The first turbine rotor includes an outer rotor and a plurality of outer rotors extended inwardly along a radial direction from the outer rotor. The second turbine rotor includes an inner rotor and a plurality of inner rotor airfoils extended outwardly along the radial direction from the inner rotor. The plurality of outer rotor airfoils and inner rotor airfoils are disposed in alternating arrangement along a longitudinal direction. One or more rotating seal interfaces are defined between the first turbine rotor and the second turbine rotor.

Abstract: An air seal in a gas turbine engine comprising a substrate. A bond coating layer is adhered to the substrate. An abradable layer is adhered to the bond coating layer. The abradable layer comprises a metal matrix discontinuously filled with a soft ceramic material.

Abstract: A filled abradable seal component, an associated method of manufacturing, and a turbomachine including the filled abradable seal component are disclosed. The method includes positioning the abradable seal component including a plurality of honeycomb cells, applying a filler material on the abradable seal component to fill the plurality of honeycomb cells, and curing the filler material at a temperature below 250 degrees Celsius to produce the filled abradable seal component. The filler material includes an abradable material, a binder material, and a fluid catalyst. The abradable material includes at least one of nickel chromium aluminum-bentonite, cobalt nickel chromium aluminum yttrium-polyester, cobalt nickel chromium aluminum yttrium-boron nitride, aluminum silicon-bentonite, aluminum bronze-polyester, nickel graphite, or aluminum silicon-boron nitride. The binder material includes at least one of aluminum, nickel-aluminum, aluminum thiophosphate, or aluminum thiosulfate.

Abstract: The present disclosure provides a valve device, which includes: a valve casing in which an inlet flow passage, an intermediate flow passage, and an outlet flow passage are formed; an outlet rod part coupled to the outlet valve body; an interlocking shaft part that linearly moves the outlet rod part in a direction of a first central axis; an intermediate rod part coupled to an intermediate valve body; and an intermediate actuator part that linearly moves the intermediate rod part in the direction of the second central axis. The intermediate actuator part has a link part that converts displacement of the linear motion member, which is advanced and retreated in the direction perpendicular to the direction of the second central axis, into displacement of the linear motion member in the direction of the second central axis and transmit the converted displacement to the intermediate rod part.

Abstract: A variable vane actuator assembly for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a plurality of vanes. A synchronization rings surrounds and is mechanically linked to drive the vanes to pivot for varying an angle of the vanes. A crank shaft is mechanically linked to the synchronization ring for rotating the synchronization ring. A fluid actuated rotary motor is located at an end of the crank shaft for selectively rotating the crank shaft.

Abstract: Guide vane adjusting device for a flow machine to rotate guide vanes, with a driveshaft, and a control ring that transmits rotation of the driveshaft to rotate the guide vanes. The driveshaft is directly coupled with one of the guide vanes to be directly rotatable by the driveshaft without the intermediary of the control ring. The directly driven guide vane is articulately coupled with the control ring via a transmission lever. The other guide vanes are indirectly rotatable with the intermediary of the control ring. The control ring is displaceable in circumferential and axial direction such that forces at coupling points between the control ring and the transmission levers coupled with the control ring run perpendicular to the transmission levers.

Abstract: A variable vane adjustment system for a gas turbine engine including: a vane platform having a recess, a vane opening within the recess, and a set screw opening originating at a first wall of the recess and extending into the vane platform; a trunnion carrier having a base portion located at least partially within the recess, a bushing attached to the base portion, and an orifice that extends through the base portion and bushing, wherein the orifice is aligned with the vane opening; a variable vane having a vane stem, the vane stem extending through the vane opening and the orifice; and a set screw located at least partially within the set screw opening, the set screw being configured to longitudinally traverse the set screw opening as the set screw is rotated, wherein the set screw is configured to move the trunnion carrier and variable vane.