Abstract: A gas turbine engine including at least a first composite part configured for mounting in a second metal part of the engine, the first composite part including an interface surface configured to be in surface contact with the second metal part, the engine including a metal protection removably mounted on the first composite part and configured to cover the interface surface.

Abstract: A method of through-thickness reinforcing a laminated material is disclosed, in which a reinforcing element is coated with a thermoplastic layer. The reinforcing element is inserted into a base material, and a matrix material, such as a polymeric, is included in the base material. The combination is then cured, or heated, such that the thermoplastic layer and the matrix material diffuse into each other, thereby forming an interphase region around the reinforcing element. This interphase region helps to prevent cracks from propagating from the reinforcing element.

Abstract: An aircraft propeller de-icing system comprises at least one propeller blade coupled to a rotatable prop assembly. The prop assembly is configured to rotate in response to rotatably driving a propeller shaft. At least one resistive-inductive heating unit is coupled to the at least one propeller blade. The resistive-inductive heating unit is configured to generate eddy currents that induce inductive heat in response to an electric current. A contactless power transfer system generates the electrical current in response to transferring power across an air gap separating the propeller shaft from the contactless power transfer system.

Abstract: A cooling structure for a stationary blade is provided. The cooling structure may include a first chamber in an endwall of the stationary blade directing a first cooling fluid from the stationary blade to a first cooling circuit, and a second chamber in the endwall of the stationary blade directing a second cooling fluid from the stationary blade to a second cooling circuit different than the first cooling circuit. The first cooling fluid has a lower temperature than the second cooling fluid.

Abstract: An internally cooled airfoil, such as a turbine blade, has an airfoil section extending between a tip and a root. The interior of the airfoil includes a distribution of lands at the trailing edge in the span direction. A width of each of the lands is a widest dimension in the span direction of the land in the interior of the airfoil. A pitch is a distance in the span direction between centerlines of two adjacent lands. The pitch is constant throughout the distribution of the lands. The distribution of the lands includes at least two different widths.

Abstract: An air cooled turbine airfoil with an impingement plate bonded over multiple impingement cooling surfaces of the airfoil, where the impingement plate forms a series of double or triple impingement cooling for separate surfaces of the airfoil. The impingement plate can be shaped and sized to fit over an airfoil surface that requires multiple impingement cooling.

Abstract: A method of constructing a cured composite assembly includes positioning a composite assembly within a bonding tool, wherein the composite assembly comprises an uncured composite spar and a skin and performing a curing cycle on the composite assembly to simultaneously cure the uncured composite spar and bond the skin to the cured composite spar.

Abstract: A turbine engine blade includes an airfoil connected by a platform to a middle radial wall extending axially and prolonged radially inwards by a blade root that is mountable in a slot of a disk, and the platform and the middle radial wall defining two lateral cavities situated on either side of the middle radial wall and opening out circumferentially to receive scaling members. The cavities are open downstream with two fins projecting on either side of the middle radial wall at downstream end of the middle radial wall, the fins coming to bear against two adjacent teeth of the disk between which the slot is formed. The downstream end of the middle radial wall includes a setback extending between at least one rib of the platform and the fins.

Abstract: An axial compressor includes: a rotor as a rotational shaft, rotor blades mounted on the rotor, a compressor casing that covers the rotor and the rotor blades, and stator vanes mounted on the compressor casing. The rotor blades and the stator vanes are each disposed in a circumferential direction of the rotational shaft to form a rotor-blade cascade and a stator-vane cascade, respectively. The rotor-blade cascade and the stator-vane cascade are arranged in plural rows, respectively, in an axial direction of the rotational shaft. The stator vane has a dovetail, and the compressor casing has a dovetail groove that extends in the circumferential direction of the rotational shaft to receive the dovetail inserted therein to fix the stator vanes. Two or more stator vanes, the stator vanes belonging to stator-vane cascades different from each other, are fixed in the dovetail groove.

Abstract: A turbomachine bucket may include an airfoil, a shank coupled to the airfoil, and an angel wing coupled to the shank, the angel wing having an axially extending tip sized to seal with a plurality of discouragers, each discourager having a different axial extent. Various methods for modifying an angel wing to accommodate different sized discouragers are also disclosed.

Abstract: There is described a seal assembly for a gas turbine engine comprising: a first seal having a sealing passage which defines a flow path trajectory for leakage air, the first seal for partitioning a first pressure area to a lower pressure area; a second seal located along the line of the flow path trajectory of the first seal, the second seal for partitioning a second pressure area and the lower pressure area; a deflection member located between the first seal and second seal, and in the trajectory of the flow path from the first seal.

Abstract: The invention relates to an axial flow turbine and method of operating thereof. The turbine comprises a last stage of rotating blades located towards a downstream end of the turbine having a distal region at an end of the airfoil of the blades. A monitoring control system has at least one sensor in the distal region of at least one last stage blade for measuring at least one physical property of the airfoil and a control element that is capable of influencing at least one physical property of the distal region. The control system further includes a controller that adjusts the control element based on at least measured physical property so by controlling the at least one physical property.

Abstract: A steam turbine includes a turbine main body having blades supported rotatably, a steam channel which is connected to the turbine main body and in which steam flows, a regulating valve configured to linearly move to adjust opening/closing of the steam channel, and an opening/closing drive mechanism configured to drive the regulating valve. The opening/closing drive mechanism includes an electric motor configured to rotate by an electric power being supplied, a conversion mechanism configured to convert rotational motion of the electric motor into linear motion of the regulating valve, and a brake operated by regenerative energy of the electric motor.

Abstract: Blockages of turbomachine cooling circuit cooling holes resulting from coating processes can be removed by introducing a cleaning agent into the cooling circuit. The cooling circuit can be connected to a cleaning agent supply under pressure, adding force on the blockage to chemical action by the cleaning agent. The cleaning agent is chemically reactive with the coating material and substantially chemically non-reactive with the underlying material of the cooling circuit and other parts of the turbomachine. A neutralization agent can also be introduced to reduce toxicity and/or action of the cleaning agent. A turbomachine cooling hole cleaning method includes introducing a cleaning agent into a cooling circuit of a turbomachine part, pressurizing the cleaning agent in the cooling circuit until a first defined condition is met, and introducing a neutralization agent to the turbomachine part while the cleaning agent is applied to the cooling circuit.

Abstract: The present disclosure provides, in one embodiment, a unique gas turbine engine. Other embodiments include unique gas turbine engines, and unique active balancing systems; as well as apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and active balancing systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

Abstract: An apparatus and method for cooling a dual, walled component is disclosed herein. An augmented cooling system according to the present disclosure includes transporting a cooling fluid through one wall of a cooling pathway formed between two opposing spaced apart walls of the dual walled component. The cooling fluid can be deflected away from one wall of the cooling pathway with a first trip strip as the cooling fluid traverses along the cooling pathway. The cooling fluid can be deflected away from the opposing wall of the cooling pathway with a second trip strip as the cooling fluid continues traversing along the cooling pathway. The cooling fluid can then be discharged from the cooling pathway through the opposing wall of the dual walled component.

Abstract: In a scroll structure for a radial turbine configured such that a turbine rotor 02 is rotationally driven by causing exhaust gas to flow from a spiral scroll portion 4 formed in a turbine housing 1 toward a rotor blade 3 of the scroll portion 4 in a radial direction, and act on the rotor blade 3, then flow out in an axial direction, a heat radiation space portion is formed in a shroud portion 11 between the turbine housing 1 and a turbine chamber provided with the rotor blade 3.

Abstract: In the generic exhaust-gas turbocharger, the turbine-side and compressor-side radial bearing bush are of identical design. A more compact bearing space, and improvements in acoustics and rotor dynamics, are achieved by providing different bearings on the turbine and compressor sides.

Abstract: A bearing housing (1) of an exhaust-gas turbocharger (EGT), having a mounting bore (2); a bearing device (3) which has two bearing bushes (4, 5) which are arranged in the mounting bore (2), between which bearing bushes is arranged a spacer (6); a rotational speed sensor (7) which engages into a sensor recess (8) of the spacer (6); and a locating pin (9) which is screwed into a pin bore (10) and which engages with its pin head (12) into a pin recess (11) of the spacer (6); wherein the pin recess (11) is formed as a slot.

Abstract: A standard bearing unit (1) for different exhaust-gas turbocharger designs (8), having a shaft (2); having a shaft nut (18); having sealing devices (14, 15); having a compressor wheel (3) which is arranged on a first end (4) of the shaft (2); and having a turbine wheel (5) which is arranged on a second end (6) of the shaft (2), wherein the shaft (2) is mounted in a standardized bearing sleeve (7) which has predefined, unchangeable outer dimensions (19, 23) which are independent of the exhaust-gas turbocharger embodiment.

Abstract: A gas turbine engine includes a bearing. A bearing support includes a first wall that extends between the first and second ends and is operatively supported by the bearing at a first end. An engine case is secured to the second end radially outward of the first end. A flexible support is provided by a second wall integral with and extending transversely from the first wall. The second wall has a first flange and a gear train component is secured to the first flange.

Abstract: In one embodiment, a steam turbine facility includes drain piping in which a shut-off valve is provided, the drain piping being either a valve drain pipe that leads a drain from the main steam regulating valve to an outside thereof, or a casing drain pipe that leads a drain from the turbine casing to an outside thereof. A heat absorber disposed in a range, upstream of the shut-off valve, of the drain piping to absorb heat of the drain piping.

Abstract: A back-up boiler system for a solar thermal power plant (201) for transferring solar energy into electricity, said back-up boiler system comprising a combustion chamber (70) and a convection section (80) in fluid connection with said combustion chamber (70), wherein in the convection section (80) at least a first heat exchanger (92) is provided for heating a molten salts mixture of the solar thermal power plant and a second heat exchanger (90) for pre-heating boiler feed water of the solar thermal power plant, wherein the back-up boiler system (25) is configured to allow selection between only providing heat to the first heat exchanger (92), only providing heat to the second heat exchanger (90) and providing heat to both heat exchangers (90, 92), preferably dependent on availability of solar radiation and/or dependent on demand of power generation.

Abstract: Provided herein are heat engine systems and methods for starting such systems and generating electricity while avoiding damage to one or more system components. A provided heat engine system maintains a working fluid (e.g., sc-CO2) within the low pressure side of a working fluid circuit in a liquid-type state, such as a supercritical state, during a startup procedure. Additionally, a bypass system is provided for routing the working fluid around one or more heat exchangers during startup to avoid overheating of system components.

Abstract: A Rankine cycle apparatus includes a pump, an evaporator, an expander, and a condenser. The evaporator has a plurality of heat transfer tubes arranged in rows in a flow direction of a high-temperature fluid to be heat-exchanged with a working fluid. The heat transfer tube located in a most upstream row in the flow direction of the high-temperature fluid is defined as a most upstream heat transfer tube. For example, the most upstream heat transfer tube forms an inlet of the evaporator so that the working fluid flows into the evaporator through the inlet and first passes through the most upstream heat transfer tube.

Abstract: A Rankine cycle waste heat recovery system associated with an internal combustion engine is in a configuration that enables handling of exhaust gas recirculation (EGR) gas by using the energy recovered from a Rankine cycle waste heat recovery system. The system includes a control module for regulating various function of the internal combustion engine and its associated systems along with the Rankine cycle waste heat recovery system.

Abstract: A method for energy storage and recovery is based on the liquid air energy storage (LAES) operated at the pressure relationship such that the pressure of discharge air is greater than the charge air to provide a high round-trip efficiency. External cold source and cold thermal energy storage are used in a LAES to achieve a decrease in the LAES capital costs. A demand for a supplemental cold energy provided by external sources may be minimized. These features alone or in combination may result in reduced power demand required for cooling.

Abstract: A cam carrier module for vehicles may include a cam carrier coupled with a cylinder head, an injector penetrating through the cam carrier and the cylinder head, and a sealing device provided between the cam carrier and the cylinder head and enclosing the injector to implement sealing of the injector.

Abstract: An engine includes a crankshaft, a piston coupled to the crankshaft, and a head positioned over the piston and cylinder. The head includes a first aperture therethrough profiled for a spark plug. The engine also includes at least one camshaft positioned in the head and a cam retainer positioned over the camshaft to retain the camshaft in the head. The cam retainer includes a second aperture profiled to at least partially overlie the first aperture. The cam retainer is in a sealed relation with the head at the interface of the first and second apertures. The engine also includes a valve cover receivable over the head and cam retainer and including a third aperture therethrough, the third aperture being profiled to at least partially overlie the second aperture, and the valve cover being in a sealed relation with the cam retainer at the interface of the second and third apertures.

Abstract: A method for manufacturing a roller, adapted to equip a mechanical system forming a cam follower or a rocker arm. The roller is centered on a central axis and comprising: an outer cylindrical surface adapted to roll on a cam, an inner cylindrical bore adapted to receive a pin belonging to the mechanical system, and two lateral faces extending radially to the central axis. The method includes a machining step forming circular grooves that are concentric with each other on at least one of the lateral faces of the roller. The roller can be installed within a mechanical system.

Abstract: A tappet (1) for a reciprocating-piston combustion engine, which is situated within a tappet guide of a component fixedly attached to the engine, and having a bearing-mounted roller (8) guided on a pin (3), which roller is in active contact with a cam or an eccentric of a shaft of the reciprocating-piston combustion engine. The casing surface of the cam or eccentric is implemented axially parallel to the shaft and the roller (8) is guided so as to oscillate on the pin (3).

Abstract: Valvetrain of an internal combustion engine, including a rocker support, a fulcrum, and a rocker. The rocker support is mounted to a cylinder head and fixed relative thereto. The rocker is positioned about the rocker support and partially in an axial aligning groove of the rocker support. The fulcrum is sandwiched between the rocker support and the rocker. The rocker oscillates about the fulcrum as forces are received and applied to a first and a second end of the rocker.

Abstract: A dual-lobed cam for a camshaft of an internal combustion engine is presented herein. The camshaft includes an elongated shaft rotationally disposed in relation to a crankshaft via a timing assembly. The dual-lobed cam includes an enlarged base circle region circumferentially disposed around the camshaft, with two oppositely disposed lobes extending therefrom. The lobes define lift regions off of the base circle which drivingly engage a valve assembly. The camshaft disclosed herein may include a rotational speed of one-fourth the rotational speed of a crankshaft or crankshaft sprocket, thereby preserving power and increasing efficiency of the overall engine.

Abstract: A nickel-based alloy includes, in weight percent, carbon from about 0.7 to about 2%; manganese up to about 1.5%; silicon up to about 1.5%; chromium from about 25 to about 36%; molybdenum from about 5 to about 12%; tungsten from about 12 to about 20%; cobalt up to about 1.5%; iron from about 3.5 to about 10%; nickel from about 20 to about 55%; and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seta inserts for internal combustion engines.

Abstract: An electric vehicle such as an electric motorcycle includes a driving motor which activates a wheel via a driving power transmission mechanism (e.g., transmission), a mechanical oil pump which is mechanically activated by the driving motor to feed oil to the driving power transmission mechanism, and an electric oil pump which feeds the oil to the driving power transmission mechanism. A controller causes the electric oil pump to initiate its operation before the driving motor in a deactivated state initiates its operation under a specified condition, thus preventing a situation in which there is no lubrication oil in the driving power transmission mechanism during starting.

Abstract: A muffler (1) for an exhaust system of a vehicle driven by an internal combustion engine, includes a gas-tight housing (2), a partition wall (31) inside the housing, an inlet pipe (51), a first outlet pipe (61), a switchable second outlet pipe (7) and a resonator pipe (8). The a partition wall (31) divides the housing's interior into a first volume (41) and a second separate volume (42). The inlet pipe and the first outlet pipe (61) and the second outlet pipe and the resonator pipe are in fluid communication with the first volume. The resonator pipe provides fluid communication between the first volume and the second volume. The second outlet pipe passes through the second volume. The second outlet pipe is surrounded, in a circumferential direction, by the resonator pipe in a section in which the second outlet pipe penetrates the partition wall.

Abstract: A vehicle ambient air purification arrangement, a vehicle, a vehicle fleet and a method for purifying air ambient to a vehicle are provided. The arrangement comprises an air conveying apparatus and a controller. The controller is arranged to control the air conveying apparatus to convey ambient air through ducts and filters of a vehicle exhaust gas treatment system in response to a determination that a combustion engine is inoperative and that a voltage supplied to the arrangement exceeds a threshold voltage.

Abstract: An exhaust mixer provided may be used for mixing an additive, such as urea, in exhaust fluid flow. The exhaust mixer may be useful in reducing or preventing build-up of solid additive deposits by increasing efficiency of mixing of the additive. The exhaust mixer may be located at least partially within a mixing conduit and includes plurality of elongate mixing blades held in spaced configuration by a support. Each mixing blade may have a longitudinal axis extending along a longitudinal axis of the mixing conduit, wherein an injector module may be located upstream of the inlet of the mixing conduit.

Abstract: An atomizing injector comprises a body having a central bore with a valve situated in the bore, leading to a chamber. An actuator moves the valve between closed condition and open conditions, selectively exposing the chamber to a flow of pressurized liquid. A discharge port extends from the chamber to a discharge orifice. A swirl element is situated in the chamber, while leaving a free space in the chamber immediately above the discharge port. When the valve is opened, liquid flows into the chamber, through the swirl element into the space, forming a whirl in the space before passing through the discharge port and exiting the discharge orifice as an atomized whirling spray.

Abstract: A fluid metering unit has a housing providing a flow path from an inlet port through a first solenoid valve and a second solenoid valve to an outlet port. An electric circuit board for operating the solenoid valves is contained within the housing. Also contained within the housing and connected to the electric circuit board are a temperature sensor and a pressure sensor for sensing temperature and pressure in the flow path. An electric-operated temperature control element in thermally conductive contact with the housing controls temperature along at least a portion of the flow path.

Abstract: A fluid control valve device includes a seal part disposed to a valve part. The seal part is elastically deformable and contacts a valve seat when a fluid passage is closed to intercept fluid from passing through the fluid passage. The valve seat has a surface opposing the seal part, a first projection part projected from the surface toward an upper surface of the seal part and having an annular shape, and a second projection part projected from the surface toward the upper surface of the seal part on a radially outer side of the first projection part. When the fluid passage is closed by the valve part, the first projection part is in tight contact with the seal part, and the second projection part is configured to collide with the seal part.

Abstract: A connector element for connecting a pump assembly for use in a selective catalytic reduction system to a reagent supply of reagent fluid, the connector element comprising: a reagent flow passage arranged to receive reagent fluid at a first end from the reagent supply and to supply the reagent fluid via a second end to a reagent inlet port for reagent fluid on the pump assembly; a coolant passage for cooling fluid, the coolant passage arranged to be in communication with a coolant port on the pump assembly.

Abstract: A holding sealing material includes a one-sheet mat including inorganic fibers. The one-sheet mat includes a first mat with a first side face and a second mat with a second side face. A part of the first side face and a part of the second side face are foldably and integrally connected.

Abstract: A diesel exhaust fluid (DEF) tank for an off-road vehicle including a first conduit channel molded into an exterior surface of the DEF tank, at a first depth, in which the first conduit channel is configured to guide a first conduit along the exterior surface of the DEF tank. The DEF tank further including a second conduit channel molded into the exterior surface of the DEF tank at a second depth, different than the first depth, in which the second conduit channel is configured to guide a second conduit, and the first depth and the second depth are selected to create a vertical gap between the first conduit and the second conduit at an intersection of the conduits.

Abstract: A leak detection method of a reducing agent pumping system including a reducing agent tank, an injector, a line formed through the reducing agent tank and the injector, and a pumping module disposed in the line may include pumping a reducing agent to the injector with a pump of the pumping module and detecting a pressure thereof, operating the pump at a predetermined load or less and stopping an operation of the injector, when it is determined that a detected pressure is between a first set value and a second set value, operating a heater for heating the reducing agent in the pumping module for a predetermined time, and determining that leak occurred in the line between the pumping module and the injector, when it is determined a temperature of the reducing agent in the pumping module is lower than a predetermined value.

Abstract: A tailpipe for a vehicle, which has a tubular body may include a central pipe positioned in the body, and a plurality of sub-pipes which is disposed to surround an outer circumferential surface of the central pipe.

Abstract: A noise arresting system includes a landscape maintenance implement that has an internal combustion engine and the internal combustion engine has an exhaust. A resonator has a first end, a second end and a peripheral wall extending therebetween. The first end and the second end each is open and the resonator is substantially hollow. An intake pipe is insertably positioned within the first end. The intake pipe is fluidly coupled to the exhaust to reduce a sound level of the exhaust. An exhaust pipe has a primary end, a secondary end and a flexible section extending between the primary end and the secondary end. The primary end is insertably positioned within the second end. The flexible section is bendable to direct the secondary end away from the resonator at a selected angle.

Abstract: A gasket assembly has a middle layer located between an upper layer and a lower layer. The middle layer includes spacer portions that at least partially surround a gap. The gap, the spacer portions and the layers may have insulating and/or conducting portions as needed.

Abstract: An apparatus for improving efficiency of an alternator for a vehicle includes a controller connected to the alternator by LIN communication to determine whether the alternator enters a high temperature condition. The controller operates a cooler to cool an inside of an engine room if it is determined that the alternator enters the high temperature condition.

Abstract: An engine cooling system includes a liquid-to-air heat exchanger having an associated fan and a pump forcing convection and a controller communicating with the fan and the pump, the controller increasing fan speed in response to a first gradient in heat transfer rate to power exceeding a second gradient in heat transfer rate to power for increasing pump speed, and increasing pump speed when the second gradient is greater than the first gradient. The controller may increase the pump speed in response to a desired increase in heat transfer rate. The first gradient may be based on a gradient in heat transfer rate to air flow from a map of heat exchanger performance. The second gradient may be based on a gradient in heat transfer rate to coolant from a map of heat exchanger performance.