Abstract: A method for analyzing a geological formation having at least one hydrocarbon therein may include determining a total organic carbon mass over a depth range of the geological formation, and determining a mass fraction of the at least one hydrocarbon over the depth range of the geological formation based upon the total organic carbon mass. The method may further include determining a volume of the at least one hydrocarbon over the depth range of the geological formation, and determining a density of the at least one hydrocarbon over the depth range of the geological formation based upon the mass fraction and the volume of the at least one hydrocarbon.

Abstract: An apparatus for tracer based flow measurement may include a tracer chamber for installation in and/or on a production tubing, wherein the tracer chamber is for holding tracer and is arranged to be linked, in use, to the pressure in an annulus about the production tubing. The tracer chamber may include an outlet for fluid communication between the tracer chamber and the fluid within the production tubing, whereby tracer is released from the tracer chamber into the production tubing in accordance with a pressure differential between the annulus and the production tubing.

Abstract: Systems and methods for controlling dust. One method includes automatically detecting an operating status of a mining machine. The method also includes automatically, with an electronic processor, adjusting operation of a dust suppression system based on the operating status of the mining machine.

Abstract: The present invention refers to a set of methods and procedures that may be combined in order to greatly increase the speed of development of an access ramp in a underground hard-rock mine. More particularly, the present invention was designed to target all the bottle-necks comprised by the access operation of a hard-rock mine that employs a RAIL-VEYOR machine. The invention also comprises of an ore production line which consists in the sequential arrangement of a series of mining equipment between the work face and the entrance of a hard-rock mine. The invention also comprises a Hard Rock Mining Access Plan for a hard-rock mine which encompasses two parallel ramps interconnected by cross-cut passageways. Further, invention also comprises a Ground Support Installation method configured to shorten the time required for the installation of ground support inside of a hard-rock mine.

Abstract: A mining tool for a drill head of a tunnel boring machine for mining in rock includes a roller cutter fastening device. The roller cutter fastening device is mountable on the drill head for accommodating and mounting a rotatable roller cutter. The roller cutter is interchangeably and rotatably received in the roller cutter fastening device. A sensor arrangement for detecting a mechanical load of the roller cutter is formed at least partially in the roller cutter fastening device and includes at least one load-sensitive element.

Abstract: A mine rib support includes first and second elongate members each having a first end and a second end, a center plate having a body defining a first opening that receives the first elongate member, a second opening that receives the second elongate member, and an installation opening configured to receive a mine bolt, a first end plate defining first and second openings for receiving the first end of the first and second elongate members, respectively, and a second end plate defining first and second openings for receiving the second end of the first and second elongate members, respectively.

Abstract: A mine stopping panel is disclosed. The panel includes first and second channel-shaped panel members having a telescoping sliding fit one inside the other. An elongate end cap is fitted in the first panel member. One or more louver connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member.

Abstract: An airfoil includes an airfoil body that has a leading edge and a trailing edge and a first sidewall and a second sidewall that is spaced apart from the first sidewall. The first sidewall and the second sidewall join the leading edge and the trailing edge between a radially outer end and a radially inner end. The first sidewall and the second sidewall at least partially define a cavity extending radially in the airfoil body. A damper member has a free radially inner end in the cavity and a free radially outer end in the cavity. The damper member is free-floating in the cavity.

Abstract: A turbine blade has a body enclosing a labyrinth of internal channels for circulation of coolant received through an inlet integrally formed in terminal portion of blade root. The labyrinth includes; inlet arranged on an axially upstream face of terminal portion leading to an upstream duct portion having first section adjacent the inlet and a second section axially downstream of first, second section having reduced cross section compared to first section. Leading edge passage intersects first section and extends through blade body towards the tip. Main blade passage intersects second section. Trailing edge passage intersects downstream duct portion which is in axial alignment with but separate from second section and channel connects second section with the downstream duct portion. Channel has reduced cross section compared to second section and downstream duct portion. The inlet has an inverted keyhole shape with cross section extends through upstream duct portion first section.

Abstract: A turbomachine having at least one circulation structure is disclosed. The circulation structure has an annular space with baffle elements surrounding a main flow path and is open to the main flow path. A housing of the turbomachine to receive the circulation structure is divided in an axial plane into a front housing region and a rear housing region and the circulation structure is divided into a front structure region and a rear structure region in the axial plane of separation. A circulation structure divided into two parts in the axial direction and a method for the same is also disclosed.

Abstract: A joint between a first preform component and a second preform component that are constructed for ultimate use in a gas turbine engine includes a plurality of extended fibers which may be integral with the first preform component and be at least partially enveloped by the second preform component. A method for making the component provides a first preform component having extended fibers integral therewith, and supplying a second preform component. The method further includes inserting the extended fibers at least partially into the second preform component body.

Abstract: A guide vane arrangement for a turbomachine, particularly a gas turbine, is disclosed. The guide vane arrangement includes an external shroud band, on which at least two guide vanes protrude radially inward. A pair of axial ribs spaced apart from each other in the peripheral direction and disposed between two adjoining guide vanes in the peripheral direction protrude radially outward from a circumferential surface of the external shroud band and/or axially from a radial flange of the external shroud band.

Abstract: A sealing system including a first component at least partially manufactured from ceramic fiber composite materials, a second component at least partially manufactured from ceramic fiber composite materials, and a sealing element accommodated between the first component and the second component. The sealing element is designed as a sealing strip. It is provided that at least one recess accommodating the sealing element is formed on the first component and/or on the second component, the recess having a cross-sectional profile including an inner section which is concave toward the sealing element, the radius of curvature of the inner section being selected in such a way that it may be formed with the aid of continuous, curved fibers of the ceramic fiber composite material, the fibers being oriented in such a way that they lie essentially in parallel to the cross-sectional plane of the cross-sectional profile.

Abstract: An airfoil array for a gas turbine engine comprises a plurality of airfoils spaced circumferentially apart from each other about an engine center axis. Each airfoil is associated with a platform. An endwall extends circumferentially about the engine center axis, and is defined by adjacent platforms. Each pair of adjacent platforms are separated from each other by a gap. An endwall contour shape extends from a first location on one side of the gap to a second location on an opposite of the gap. The endwall contour shape is the same for all adjacent platforms. A gas turbine engine and a method of forming an airfoil array for a gas turbine engine are also disclosed.

Abstract: An apparatus and a process for converting a twin spool aero gas turbine engine to an industrial gas turbine engine, where the fan of the aero engine is removed and replaced with an electric generator, a power turbine is added that drives a low pressure compressor that is removed from the aero engine, variable guide vanes are positioned between the high pressure turbine and the power turbine, and a low pressure compressed air line is connected between the outlet of the low pressure compressor and an inlet to the high pressure compressor, where a hot gas flow produced in the combustor first flows through the high pressure turbine, then through the low pressure turbine, and then through the power turbine.

Abstract: A retention device for restraining movement of a clapper arm used in a clapper valve during removal of a clapper valve shaft that extends through the clapper arm. The device includes an adapter plate mounted to a wall of a clapper valve casing wherein the adapter plate includes a hole having an internal thread. The device also includes a retaining element having an outer thread that threadably engages the internal thread. Further, the device includes a retaining end that is formed on an end of the retaining element, wherein the retaining end includes a circumferential contact surface that abuts against the clapper arm to restrain movement of the clapper arm during removal of the clapper valve shaft.

Abstract: A state observer for a steam generator of a thermal power plant is provided. Accordingly, provision is made for the state observer to be a multi-variable state observer which has a Kalman filter designed for linear-quadratic state feedback. The state observer can be used for validating measured variables of the steam generator of the thermal power plant, wherein measured variables of the steam generator are compared with output variables of the state observer.

Abstract: A pressure probe includes a non-deflecting airfoil, a sensing feature, and an interior passage. The non-deflecting airfoil is made of a metal and configured for use in a gas turbine engine. The airfoil extends from a base to a tapered portion, and then to a linear portion, along a primary axis. The sensing feature is formed monolithically with the airfoil, as by additive manufacturing. The interior passage is operatively connected to the sensing feature and passes through both the airfoil and the base.

Abstract: A control system for a gas turbine engine is disclosed. In embodiments, control system includes a controller and a high speed recorder. The controller obtains sensor values from sensors connected to the gas turbine engine and publishes a map of trigger events. The high speed recorder reads the sensor values from the controller. The high speed recorder checks a map header for a change to the map header on a predetermined map reading interval, sets a flag when the map header has changed, and reads the map during the next loop of the map reading interval. The control system maintains timestamps assigned for the sensor values and to the trigger events on the same temporal axis.

Abstract: The present application provides a method of evaluating insulation quality in a turbine by a data acquisition system. The method may include the steps of receiving a number of operating parameters from a number of sensors, wherein the operating parameters may include casing temperatures and insulation temperatures, comparing the casing temperatures and the insulation temperatures to predetermined casing and insulation values, and altering one or more of the operating parameters and/or initiating repair procedures if the casing temperatures fall below the casing predetermined values and/or the insulation temperatures exceed the insulation predetermined values.

Abstract: A turbine frame cooling system for use with a gas turbine engine includes an outer ring defining a cavity and a hub positioned radially inward of the outer ring. The turbine frame cooling system also includes a plurality of circumferentially-spaced first fairings coupled between the outer ring and the hub and a plurality of circumferentially-spaced second fairings coupled between the outer ring and the hub, wherein the first and second fairings are alternatingly positioned about the hub. The turbine frame cooling system also includes a plurality of circumferentially-spaced air scoops coupled to the outer ring. The plurality of air scoops extend into a bypass stream and are configured to channel a bypass air cooling flow into the cavity of the outer ring.

Abstract: An attachment structure for a gas turbine engine includes a frame that has a first annular case. A second annular case extends around the frame. The first annular case and the second annular case include a plurality of interlocks. Each of the interlocks includes a first member mounted on one of the first annular case or the second annular case and a corresponding second member mounted on the other of the first annular case or the second case. The first member is received in the second member such that the plurality of interlocks restricts relative circumferential and axial movement between the first annular case and the second annular case.

Abstract: One embodiment of the present invention is a unique gas turbine engine. Another embodiment is a unique frame for a gas turbine engine. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and gas turbine engine frames. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.

Abstract: Embodiments of the invention provide methods and apparatus for using a controllable heat source to generate electricity. One embodiment provides an energy generation module comprising a controllable heat source, one or more jackets of thermoelectric devices, and heat conducting fluids surrounding or otherwise thermally coupled to the jackets. The energy generation module can be used to convert heat from a heat source such as a gas combustion chamber into electricity. Embodiments of the invention are particularly useful for generating electricity when electrical power is not existent, cost prohibitive or otherwise in short supply. The generated electricity can be used by the user, stored in an electrical storage battery or sold to a local or remote power grid.

Abstract: A system for variable actuation of an engine valve of an engine includes a master piston driven by a cam of a camshaft. A slave piston is driven by the master piston by a volume of pressurized fluid. The slave piston causes the engine valve to open, against the action of a spring. A control valve controls a communication between pressurized fluid and an environment at lower pressure, with which a fluid accumulator is in communication. A control unit is programmed for controlling the control valve according to one or more different valve modes. When one of these valve modes is actuated, the control valve opens the communication in advance with respect to the end of the lift cycle of the cam, and not after closing of the engine valve to prevent or reduce a decrease in pressure in the volume of pressurized fluid after closing of the engine valve.

Abstract: An electric cam phasing system is provided. The electric cam phasing system includes an electric motor including a center shaft; a camshaft; a center fastener extending into a center of the camshaft and a gearbox including a sprocket and a drive unit. The drive unit includes an input shaft coupling connected to the center shaft. The drive unit is configured for coupling the camshaft to the sprocket in a manner such that relative phasing of the camshaft with respect to sprocket is adjustable via the electric motor driving the drive unit. The electric cam phasing system also includes a lock positioned axially between the center shaft and the camshaft, the lock being configured for selectively engaging the center fastener to lock the gearbox.

Abstract: Systems and methods for operating an engine with deactivating valves are presented. In one example, a groove in a camshaft controls oil flow to a valve operator that selectively activates and deactivates a poppet valve of a cylinder. The groove moves with the camshaft so that oil delivery to the valve operator is timed properly to deactivate and reactivate the cylinder.

Abstract: A thermostat includes a carrier element which can be anchored in a housing, and a valve element which is movable relative to the carrier element. The valve element contacts the carrier element in a first position, whereby a duct within the housing can be closed. In a second position, which differs from the first position, the valve element does not contact the carrier element, whereby the duct can be opened. A wax element is arranged on the carrier element and is mechanically connected to the valve element. The wax element is configured to generate a stroke in case of a temperature change, by which the valve element can be moved.

Abstract: An internal combustion engine includes an engine block defining a plurality of cylinders each receiving a piston. A crankcase extends from the engine block and supports a crankshaft drivingly connected to the pistons and including a chamber enclosed by a wall portion that defines a first blow-by flow passage and first and second drain passages therethrough. An oil sump mounted to the crankcase. A first oil separator is mounted to the wall of the crankcase in communication with the first blow-by flow passage and the first drain passage and defining a second blow-by flow passage therethrough and a third drain passage extending therethrough in communication with the second drain passage. A second oil separator mounted to the first oil separator in communication with the third drain passage and defining a third blow-by flow passage in communication with the second blow-by flow passage.

Abstract: An oil separator includes: a collecting member that collects an oil mist included in blow-by gas of an internal combustion engine; and an oil separator portion inside which the collecting member is disposed, in which the collecting member includes a plurality of wire net members stacked along a flow direction of the blow-by gas.

Abstract: A catalyst for storing nitrogen oxides (NOx) in an exhaust gas from a lean burn engine comprising a NOx storage material and a substrate, wherein the NOx storage material comprises a NOx storage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof.

Abstract: Methods and systems are provided for detecting ammonia slip from a catalytic converter. In one example, a method may include recirculating exhaust gas containing ammonia and measuring only a NOx concentration of the recirculated exhaust gas following its combustion.

Abstract: A method for controlling an exhaust gas treatment system is provided. The exhaust gas treatment system includes an exhaust gas stream supplied by an exhaust gas source to a selective catalytic reduction device, and a reductant supply source utilizing a volumetric pump. The exhaust gas source can include an internal combustion engine (ICE), such as a gasoline or diesel ICE. The method for controlling an exhaust gas treatment system includes commanding a reductant dosing quantity, determining a volumetric pump energizing time, determining an energizing time correction, and energizing the pump. The volumetric pump can comprise pump logic, and the volumetric pump energizing time can be determined by the pump logic. The energizing time correction can be determined using a calibration table. The calibration table can prescribe an energizing time correction based on a current pump pressure and the commanded dosing quantity.

Abstract: An exhaust system includes an exhaust gas treatment article having a porous ceramic honeycomb body mounted in a housing. The housing can be a low expansion housing and includes an outer shell having a first coefficient of thermal expansion (CTE) and an inner wall having a second CTE greater than the first CTE configured to hold the honeycomb body over operating temperatures.

Abstract: A heat exchanger for a vehicle includes an inlet tank configured to receive air from an air circuit of the vehicle. The heat exchanger further includes a heat exchange assembly disposed intermediate the inlet tank and an outlet tank. The heat exchange assembly exchanging heat between the air and a coolant. The outlet tank is configured to directly couple to an engine block of the vehicle and convey the air to the engine block. The outlet tank has at least two openings formed therein. The openings are configured to communicate with corresponding cylinders of the engine block of the vehicle.

Abstract: A storage tank for storing a liquid comprises a main storage chamber; an internal sub chamber located within the storage tank; and a reclosable filling opening for enabling filling of liquid into the main storage chamber and internal sub chamber. An overflow level of the internal sub chamber is located substantially at or above a predetermined fill level of the main storage chamber. The reclosable filling opening and the internal sub chamber are arranged in a substantially superposed relationship in a vertical direction, such that a substantially or entirely vertical stream of liquid filling the storage tank via the reclosable filling opening is configured to enter the internal sub chamber. A method for filling a storage tank with a liquid, a method for manufacturing a storage tank for storing a liquid, and a system comprising a storage tank and a filling nozzle are also described.

Abstract: Methods and systems are provided for maintaining a desired engine coolant level and a relative glycol amount in the engine coolant by using water sourced from on-board vehicle systems. In one example, a method may include supplying water to the engine coolant reservoir in response to the engine coolant level decreasing below a threshold. Also, a relative glycol amount in the coolant may be maintained at a threshold amount by adding water to the coolant in response to a relative glycol increasing above the threshold.

Abstract: An outboard motor includes a water jacket provided in a water-cooled engine, a first channel configured to allow a downstream-side end of a coolant flow of the water jacket to communicate with the external air, a thermo-valve provided between a downstream-side end of the coolant flow of the water jacket and an upstream-side end of the coolant flow of the first channel, a second channel configured to allow an upstream side of the coolant flow of the thermo-valve to communicate with the external air, and a second valve configured to open or close a second channel.

Abstract: A ducted combustion system for an internal combustion engine includes a combustion chamber, a fuel injector, and a plurality of ducts. The combustion chamber is defined between a flame deck surface of a cylinder head and a piston crown of a piston disposed within a cylinder bore. Further, the fuel injector is configured to inject fuel into the combustion chamber as a plurality of fuel jets. The plurality of ducts is disposed within the combustion chamber between the flame deck surface and the piston crown. The plurality of ducts is disposed such that each of the plurality of fuel jets at least partially enters one of the plurality of ducts. The at least one of the plurality of ducts is configured to move to vary an angle of a corresponding at least one of the plurality of fuel jets relative to a longitudinal axis of the fuel injector.

Abstract: Methods and systems for adjusting a branch communication valve in a dual scroll turbocharger system are provided. In one example, a method may include adjusting a position of a valve arranged between a first adaptor and a second adaptor to enable mixing of exhaust received from an exhaust manifold, the exhaust delivered to a first scroll and a second scroll of a turbocharger to drive a turbine during certain engine operating conditions.

Abstract: A turbocharger (1) including a twin scroll turbine and a valve assembly (40, 140) disposed in the exhaust gas inlet (24, 124) that is configured to control the flow exhaust gas through the turbine. The valve assembly (40, 140) includes two rotary valves (60, 160, 80, 180) actuated by a common valve shaft (44, 144). One of the valves (60, 180) may control exhaust gas flow to a volute or between volutes, and the other (80, 160) may control wastegate exhaust gas flow. The valve shaft (44, 144) is driven by an actuator to rotate about the valve shaft rotational axis (46, 146) such that the first valve (60, 160) and the second valve (80, 180) can each be selectively moved between a closed position and an open position, and the time sequence order of opening of the first valve (60, 160) and the second valve (80, 180) is selectable.

Abstract: An internal combustion engine for a motorcycle includes a rear cylinder head, the rear cylinder head being provided with a camshaft, an exhaust rocker arm rocked by the camshaft, an engine valve closed/opened by being push-pressed by the exhaust rocker arm, and a rocker arm shaft swingably supporting the exhaust rocker arm. In the internal combustion engine for the motorcycle, the rear cylinder head is provided separately from a holder member, the holder member being provided adjacently to the rear cylinder head, the camshaft is rotatably supported by the holder member, and the holder member is provided with right and left rear side walls and internal combustion engine supporting portions, the right and left rear side walls supporting the rocker arm shaft, the internal combustion engine supporting portion being supported by a vehicle body frame.

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine. The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

Abstract: A mid-turbine frame buffer system for a gas turbine engine includes a mid-turbine frame that supports a shaft by a bearing. An air compartment and a bearing compartment are arranged radially inward of the mid-turbine frame. The bearing compartment is arranged within the air compartment and includes first and second contact seals arranged on either side of the bearing. The air compartment includes multiple air seals. A high pressure compressor is fluidly connected to the air compartment and is configured to provide high pressure air to the air compartment. A method of providing pressurized air to a buffer system includes sealing a bearing compartment with contact seals, surrounding the bearing compartment with an air compartment, and supplying high pressure air to the air compartment.

Abstract: A regenerative gas turbine combustor is provided that enable to reduce an amount of leakage of compressed air before preheating to compressed air after the preheating. The regenerative gas turbine combustor is such that a compressed air passage between a combustor inner cylinder 10 and a tail cylinder 12, and a combustor outer cylinder 7 is blocked by a division wall 15 at a position between a bleeding port 13 and an injection port 14, and compressed air is preheated in a regenerator 4 and then the compressed air thus preheated is burnt together with fuel. This combustor includes seal rings 17a-17c, a holder 16 installed on the inner circumferential portion of the division wall 15 and having ring grooves 25a-25c for holding the respective seal rings 17a-17c, and gaps 20 provided between the inner circumferential surfaces of the ring grooves 25a-25c and the outer circumferential surfaces of the seal rings 17a-17c.

Abstract: An oil cooling system for an engine includes an oil input line configured to receive heated oil from a component, an oil cooler configured to cool oil and direct oil to an oil return line and a first bypass line configured to selectively bypass oil from the input line to the return line without passing through the oil cooler. The first bypass line includes a first oil pressure actuated valve urged toward a closed position, and configured to move toward an open position where a pressure differential across the valve exceeds first predetermined pressure. The first bypass line further includes a second oil pressure actuated valve urged toward an open position, and configured to move toward a closed position where pressure differential across the valve exceeds a second predetermined pressure. The second predetermined pressure is greater than first predetermined pressure, and the first and second valves are provided in series.

Abstract: A gas turbine engine includes a compressor, a turbine, and a combustor. The combustor includes a fuel injector and a vaporizer within the combustor positioned to receive liquid fuel from the fuel injector to vaporize the liquid fuel therein. The gas turbine engine includes an enclosed passage external to the combustor having a wall, a diffuser positioned to direct the air into the passage, causing the air to cool by transferring heat through the wall from the air within the passage to the vaporized fuel within the vaporizer, and a cooled cooling air passageway positioned to receive the air from the passage and direct the air after being cooled to at least one of the turbine and the compressor.

Abstract: A transportable gas turbine module including a baseplate supporting at least a gas turbine and a load drivingly connected to the gas turbine. The module further comprises a structure surrounding the gas turbine and the load and connected to the baseplate. The baseplate is designed such that it can support a heavy duty as turbine having a rated power of not less than 80 MW.

Abstract: A fixture assembly includes a standoff, a backplate and a spray coating shield attached to a support. The assembly supports a workpiece and sprays a base coat at substantially ninety degrees with respect to a surface of the workpiece to coat the workpiece with the base coat. The assembly sprays a top coat at an angle with respect to the surface of the workpiece to mask a shadowed surface area of the workpiece, where the angle different from ninety degrees.

Abstract: An assistance device for a free-turbine engine of an aircraft having at least two free-turbine engines, the device including an electrical starter machine for providing prolonged assistance to the gas generator of a first engine using energy produced by an electric generator machine driven by the second engine, the device further including at least one electricity storage member electrically connected to the electrical starter machine for providing a burst of assistance to the gas generator, wherein the electrical starter machine is powered by a first power converter enabling it to exchange energy with the storage member for providing the burst of assistance, and that transmits thereto the energy supplied by a second power converter for the prolonged assistance.