Abstract: An object is to provide a mixed flow turbine, wherein intermediate blades having an intermediate height are provided between main blades of the mixed flow turbine, thus improving an impulse blade turbine characteristic and reducing the moment of inertia for a rotor blade as a whole, thereby improving the efficiency and transient response.

Abstract: A moving blade of a low pressure turbine includes a foot and a vane having an upper surface and a lower surface, the foot having a stilt linking the vane to the foot, wherein the stilt is formed such that the transverse section of the stilt has: a first straight portion, a second curved portion and a third straight portion, the curved portion having an outer face matching the profile of the upper surface of the vane and an inner face matching the profile of the lower surface of the vane.

Abstract: An apparatus and method for passing fluid flow through at least a portion of a blade of turbomachinery such as a gas turbine or the like. The fluid flow is directed through a plurality of flow channels which are interwoven with each other. Each flow channel is non-intersecting with any other flow channel and thus does not contact fluid flowing within any other flow channel. The method and apparatus of this invention can be used to reduce heat transfer and thus reduce thermal stresses, particularly in the blade.

Abstract: An object of the present invention is to provide a Ni-based superalloy, especially for a conventional casting, having a good balance among high temperature strength, corrosion resistance and oxidation resistance, as compared to a conventional material. The Ni-based superalloy comprises Cr, Co, Al, Ti, Ta, W, Mo, Nb, C, B, and inevitable impurities, the balance being Ni, the Ni-based superalloy having a superalloy composition comprising, by mass, 13.1 to 16.0% Cr, 11.1 to 20.0% Co, 2.30 to 3.30% Al, 4.55 to 6.00% Ti, 2.50 to 3.50% Ta, 4.00 to 5.50% W, 0.10 to 1.20% Mo, 0.10 to 0.90% Nb, 0.05 to 0.20% C, and 0.005 to 0.02% B.

Abstract: A component of a gas turbine engine is provided. The component has a leading edge with two air-washed surfaces extending rearwardly therefrom to define opposing sides of the component, The component has a leading edge protector formed as a plurality of protector segments which succeed in a line along the leading edge. Each protector segment includes a sheath which covers the leading edge and the air-washed surfaces at regions adjacent the leading edge. Each protector segment overlaps with the neighbouring sheath of the succeeding segment.

Abstract: A composite turbine blade for high-temperature applications such as gas turbines or the like includes a root for mounting the blade in a corresponding circumferential assembly groove of a rotor and an airfoil connected to said root. An inner carrying structure is provided extending at least over a portion of the root as well as at least a portion of said airfoil. The inner carrying structure is made of a high strength eutectic ceramic and the airfoil is made of a ceramic matrix composite (CMC) material.

Abstract: A cantilevered airfoil includes, among other things, an airfoil having a body section and a tip, the body section extending in a first direction that is angled relative to a radial direction, the tip of the airfoil angled radially in a second direction relative to the body section.

Abstract: A stator for use with a torque converter includes an inner annular shell, outer annular core, a plurality of stator blades and pressure-side fluid directing projections. The plurality stator blades are disposed around the inner shell in a spaced apart configuration and radially extend to the outer core. Each stator blade includes an inlet-side edge, an opposed outlet-side edge and opposed pressure-side and suction-side surfaces extending between the inlet-side and outlet-side edges. The pressure-side fluid directing projections outwardly project from the pressure-side surface in spaced relation to each other and each extend between the inlet-side and outlet-side edges. The fluid directing projections are configured to aid in redirecting torque converter fluid returning from a turbine and reducing fluid separation as the fluid interacts with the stator blades and associated fluid directing projections thereby increasing efficiency and performance of the torque converter.

Abstract: A seal for use with a static guide vane of a gas turbine engine has a strap member extending to a generally cylindrical bulb. The bulb forms a diameter, and is spaced a distance defined between an end of the strap remote from the bulb, to a point on the bulb furthest from the end. A ratio of the diameter to the distance is between 0.2 and 0.5. A static guide vane and a gas turbine engine are also disclosed.

Abstract: A seal structure of a rotary machine is such that: an outer circumference side member has a ring-shaped flange which projects radially inward and extends about the axis; an inner circumference side member has a flange which is of a ring shape projecting radially outward and extending about the axis, and which is opposite to the flange of the outer circumference side member from the axial direction; in either flange, there is formed a ring-shaped groove part which is recessed from the end surface facing the other flange; in the groove part, a ring-shaped seal body advances and retracts to come in contact with the other flange; and there is a first biasing device biasing body toward the other flange side, and a second biasing device biasing it toward the wall surface of the groove part.

Abstract: A variable clearance mechanism for use in a turbine engine is provided that includes a stationary component, a plurality of articulating seal members coupled to the stationary component, and a biasing mechanism including an actuation ring. The variable clearance mechanism varies the position of stationary seal members to provide variable bucket tip clearance as a function of an operating condition of the turbine engine. The biasing mechanism is coupled to the plurality of articulating seal members for use in selectively translating the plurality of articulating seal members when the actuation ring is rotated circumferentially relative to the stationary component.

Abstract: A co-generation apparatus for the generation of electricity from an external source of forced air is described in which the co-generation apparatus comprises a turbine, a generator, a co-generation control unit, and an adjustable standoff. The turbine is connected to the generator for the production of electricity. The generator interface electrically connects the generator to an electrical system. The co-generation control unit is connected to the turbine and generator interface. The forced air drives the turbine. The turbine can be positioned in a turbine housing that receives the forced air. An adjustable standoff is connected to the turbine. The standoff adjusts the position of the turbine relative to the forced air.

Abstract: Fan containment system fitting around array of radially extending fan blades mounted on a hub in an axial gas turbine engine. The fan containment system includes a fan case having an annular casing element for encircling array of fan blades and a hook projecting in radially inward direction from the annular casing element and positioned axially forward of an array of fan blades when the fan containment system fitted around fan blades. An annular fan track liner positioned substantially coaxial to the annular casing element. Clamping arrangement connects fan track liner to the hook. Clamping arrangement is configured under the condition that a fan blade impacts the fan track liner, the clamping arrangement releases connection between the hook and a portion of fan track liner so that a portion of the fan track liner can move towards the annular casing element to encourage the fan blade to impact the hook.

Abstract: A core for forming micro channels within a turbine component is provided. The core includes a base comprising a first side and a second side; and a core assembly coupled to the second side. The core assembly further includes a plurality of channel members, wherein each channel member has a first end, a second end, and a channel body coupled to and extending between said first end and said second end. The channel body includes a channel shape configured to form the micro channels within the turbine component.

Abstract: A turbine case cooling system and a method for supplying a cooling gas flow are provided. The cooling system has a turbine case and a turbine case cooling manifold. The cooling system also has a fluid or cooling conduit. The cooling conduit has an inlet in fluid communication with the bypass duct, and an outlet in fluid communication with the cooling manifold. The cooling conduit also has an ejector section which in use supplies a motive air flow radially into the cooling conduit to draw a bypass air flow from the bypass duct. The motive air flow mixes with the bypass air flow to form the cooling gas flow. The cooling conduit also has a diffuser section which in use conveys the cooling gas flow toward the outlet in a direction substantially perpendicular to the center axis of the gas turbine engine.

Abstract: The present invention relates to a fire resistant fan casing for a gas turbine engine. The casing has a projection such as a reinforcing rib or a mounting pad. The projection comprises at least one shell portion formed of a fibre/plastic composite material encasing a core of fire resistant material such as a metallic material or a ceramic matrix composite material.

Abstract: A variable positioner includes a body portion with a cylindrical component, and an axially aligned through hole in the body position. A threading protrudes radially inward from an inner surface of the axially aligned through hole. A first axial end of the variable positioner defines an interface surface for interfacing with a rotor arm.

Abstract: A fan hub assembly for a gas turbine engine includes a fan hub that is configured to rotate about an axis. The fan hub has an axially extending aperture and a platform. A fastener is received in the aperture in a slip fit relationship to secure the platform to the fan hub.

Abstract: Plenums for bifurcated ducts and bifurcated ducts are provided for stabilizing flow therethrough. The plenum comprises an outer cylindrical body intersected by a pair of exhaust duct stubs that are configured to be coupled to a corresponding pair of exhaust ducts and an inner body. The outer cylindrical body includes an axial rear end portion. The inner body is disposed in the axial rear end portion and increases in diameter in the aft direction. The inner body comprises one of a generally axi-symmetrical inner body or a non-axi-symmetrical inner body. The bifurcated duct comprises the plenum and the pair of exhaust ducts. Exhaust systems are also provided.

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 method for charging and discharging a heat accumulator in a charge cycle and in a discharge cycle is provided. The discharging takes place by means of a steam turbine which has a high-pressure part and a low-pressure part. In order to provide heat to both turbine parts, the heat accumulator is divided into a part-accumulator for the high-pressure part and a part-accumulator for the low-pressure part. Furthermore, a system is provided in which the heat accumulator is divided into two part-accumulators. By operating a turbine with the high-pressure part and low-pressure part, the efficiency and yield of heat from the heat accumulator can be advantageously increased. The system can, for example, be used to temporarily store surplus capacities of a wind plant.

Abstract: Disclosed herein is an apparatus for reactor power control of a steam turbine power generation system including a reactor, a high-pressure turbine to which steam is supplied from the reactor through a main steam pipe, a low-pressure turbine to which the steam discharged from the high-pressure turbine is supplied via a moisture separator reheater, a branch pipe branched from the main steam pipe to be connected to the moisture separator reheater, a generator connected to the low-pressure turbine, a condenser for condensing the steam discharged from the low-pressure turbine, a condensate pump for feeding condensate condensed by the condenser, and feed water heaters for heating the condensate, the apparatus including a branch pipe control valve provided on the branch pipe and a control unit for controlling an opening degree of the branch pipe control valve.

Abstract: Provided is a power generation system in which the combustion heat of hydrocarbon gas is used to heat the steam for power generation; at the same time, the exhaust heat thereof is used to dry and dry-distill low rank coal. Due to the use of a moving bed dry distillation furnace, it is possible to keep the product gas temperature reduced; further, fewer restrictions are imposed on materials such as those for gas pipes, etc., and it is possible to achieve excellent maintainability.

Abstract: The purpose of the invention is to provide a waste heat recovery ranking cycle system whereby waste heat is efficiently recovered in a form according to a heat demand.

Abstract: The invention is a Two Cycle Internal Combustion Engine that is supercharged in the opposed twin design where the second engine housing functions as a supercharged steam engine to improve engine output and efficiency by using engine exhaust gas heat to make heat water into steam and to also drive a turbocharger that functions in unison with a positive displacement gear type compressor to make a compound supercharger to increase engine output.

Abstract: A method, control system, and combined cycle power plant are disclosed herein, which enable balancing thrust between a high pressure (HP) section and an intermediate pressure (IP) section of an opposed flow steam turbine in a combined cycle power plant, including predicting or determining a presence or absence of a thrust imbalance between the HP section and the IP section based on steam flow, pressure, and temperature data at an HP section inlet; and based on the presence or absence of the thrust imbalance, adjusting an amount of steam that enters the HP section.

Abstract: A camshaft phaser is provided for varying the phase relationship between a crankshaft and a camshaft in an engine. The camshaft phaser includes a stator having lobes. A rotor disposed within the stator and rotatable between a full retard position to a full retard position includes vanes extending radially outward from a central hub and interspersed with the stator lobes to define alternating advance and retard chambers. A first portion of the central hub between adjacent vanes extends radially outward further than a second portion of the central hub between adjacent vanes.

Abstract: An oscillating-motor camshaft adjuster which provides that, through software, camshaft alternating torque is utilized only in conditions where the torque is adequate and/or it is important to reduce flow consumption. If there is two step lift and the camshaft alternating torque is not adequate in low lift, software can position the spool to utilize some camshaft alternating torque while also tanking oil to speed up the phasing.

Abstract: A hydraulic valve for a pivot motor adjustment device of a camshaft, the hydraulic valve including a valve housing with a longitudinal axis and a valve piston that is axially moveable in the valve housing along the longitudinal axis, wherein a first operating connection of the valve housing and a second operating connection of the valve housing is openable and closable by the valve piston, wherein the first operating connection and the second operating connection are axially offset from one another; and a supply connection of the valve housing, wherein the supply connection supplies the hydraulic valve with hydraulic fluid fed by a feed device, wherein the hydraulic fluid flows through the hydraulic valve on different paths defined by a flowable channel system of the valve piston.

Abstract: A system according to the principles of the present disclosure includes a valve lift determination module and a fault detection module. The valve lift determination module determines valve lift based on at least one of a first period when a valve is open and N differences between a first value of a valve lift signal generated by a valve lift sensor when the valve is closed and a second value of the valve lift signal when the valve is open, wherein N is an integer greater than one. The fault detection module detects a fault in a valve actuator based on the valve lift.

Abstract: A system and method for delivering lubrication oil to an internal combustion engine. The engine lubrication system (10) comprises a lubrication oil reservoir (13), a pump (15) to deliver lubrication oil to the engine from the reservoir (13), and a pressurisation system (17) for pressurising oil received by the pump from the reservoir for delivery to the engine. The pressurisation establishes a positive pressure at the pump inlet to assist delivery of oil having entrained vapour cavities to the engine for lubrication thereof. The pump (15) comprises a solenoid actuated positive displacement pump, whereby operation of the pump may be selectively controlled by the manner in which the solenoid is operated. The engine lubrication system (10) further comprises a pressure release system (46) comprising pressure relief valve (47) for relieving excess fluid pressure within the oil reservoir (13).

Abstract: A lubrication system for an internal combustion engine. The lubrication system may comprise an oil cooler; an oil cooler supply passage for delivering oil to an inlet of the oil cooler from an oil reservoir; an oil cooler outlet passage for delivering oil from an outlet of the oil cooler to one or more portions of the internal combustion engine to be lubricated; a first pressure relief valve operably coupled to the oil cooler supply passage, the first pressure relief valve configured to open at a first predetermined pressure to allow oil in the oil cooler supply passage to return to the oil reservoir without passing through the oil cooler; and a second pressure relief valve operably coupled to the oil cooler outlet passage, the second pressure relief valve configured to open at a second predetermined pressure to allow oil in the oil cooler outlet passage to return to the oil reservoir after passing through the oil cooler, the second predetermined pressure being less than the first predetermined pressure.

Abstract: Systems and methods are described for reducing friction within a transmission and an internal combustion engine including a PCV system. A gaseous fuel source is fluidly coupled to the transmission via a flow control valve and the transmission, in turn, is fluidly coupled to an air inflow line of the PCV system. The flow control valve is configured to control a flow of gaseous fuel into the transmission and there on into the PCV system and crankcase.

Abstract: A rocker arm assembly for a valve operation in an engine includes a rocker main body extending between a first end and a second end. The first end of the rocker arm main body is configured to receive a valve actuation button and the second end of the rocker arm main body is configured to receive a cam roller assembly. The cam roller assembly includes a cam roller and a bushing is disposed in the cam roller forming a bearing surface. Further, the cam roller assembly includes a bearing component which is disposed in the bushing forming a bearing surface. The bearing component includes an oil hole with an oil delivery pocket which is curved to form a rounded edge and an transitional opening is formed extending from the rounded edge.

Abstract: Provided is a variable-capacity oil pump capable of stably securing a required pump discharge volume and discharge pressure even with a clogged oil filter and/or an electromagnetic valve failed. The oil pump is provided with a first control chamber for applying a force under oil pressure from a main oil gallery in a direction for decreasing of the eccentricity of a cam ring, a second control chamber for applying a force under oil pressure from the oil gallery in cooperation with a spring force in a direction for increasing of the cam-ring eccentricity, a first branch flow path that connects the oil gallery and the first control chamber, and a second branch flow path branched from the first branch flow path and communicating with the second control chamber via the electromagnetic valve. Two oil filters are disposed in the oil gallery and the first branch flow path, respectively.

Abstract: A baffle is provided for a motorcycle muffler to increase the engine horsepower and torque. The baffle includes an elongated pipe with louvered openings, and support members to mount the pipe inside the muffler. The pipe also includes a pair of rods extending spirally along the inner wall of the pipe. The rods are offset 180° from each other. The spiraling rods create an air flow vortex for exhaust gases passing through the baffle, and thereby enhance engine performance.

Abstract: A muffler for internal combustion engines including a hollow body having an inlet opening and an outlet opening, an inlet pipe extending into the hollow body through the inlet opening an outlet pipe extending out of the hollow body through the outlet opening, wherein the hollow body is formed by a material comprising a fiber lining and a composite structure, and wherein the fiber lining partially penetrates the composite structure.

Abstract: The present disclosure considers an exhaust manifold and method of casting an exhaust manifold, where the exhaust manifold has both a portion of the exterior wall that is jacket cooled and a portion of the exterior wall that is not cooled. The non-cooled portion of the exterior is not accessible when the exhaust manifold is secured to the engine block. Furthermore, the non-cooled portion of the exterior wall of the exhaust manifold is designed to add stability during the casting process and allow for a simplified casting process with fewer cores.

Abstract: An air dryer includes a supporting base, a drying agent container, and an outer cover. The supporting base includes an inlet for receiving compressed air to be subject to a drying process and an outlet for delivering the processed compressed air that has undergone the drying process. The drying agent container is a container supported on the supporting base, contains a drying agent in the interior, and enables the drying process to be performed by passing the compressed air from the inlet through the drying agent. The outer cover surrounds the outer side of the drying agent container on the supporting base and defines a chamber for storing the compressed air between itself and the drying agent container. The supporting base includes first and second mounting surfaces, which are oriented in different directions, and a plurality of inlets, which are oriented in different directions and receive the compressed air.

Abstract: An aftertreatment system of an internal combustion engine is disclosed. The aftertreatment system includes in a sequence along the exhaust pipe, a lean NOx trap and a particulate filter. An air/fuel ratio sensor is located upstream of the lean NOx trap and downstream of the turbine outlet to determine the air/fuel ratio during a regeneration process (DeNOx) in the lean NOx trap. A NOx sensor is located downstream of the lean NOx trap or downstream of the particulate filter, to determine NOx in the exhaust pipe. A turbine temperature is determined in accordance with a first means, and a temperature during a desulphation process (DeSOx) in the lean NOx trap is determined in accordance with a second means. At least one of the first and second means for determining a temperature may be a temperature sensor.

Abstract: An internal combustion engine which is provided with a fuel injector which injects fuel into a cylinder, an exhaust purification catalyst, and a secondary air feed device which feeds air to an engine exhaust passage. First catalyst warm-up control performs stratified combustion to retard an ignition timing, while second catalyst warm-up control feeds air to the engine exhaust passage. A first temperature range of engine cooling water at which the first catalyst warm-up control is performed and a second temperature range of engine cooling water at which the second catalyst warm-up control is performed are set. The second temperature range is set to be included inside the first temperature range.

Abstract: A reductant dosing system for an exhaust aftertreatment system of a diesel engine includes a reductant tank with an inlet volume separated from an outlet volume by a sock filter. A filter permeability condition is detected by the electronic controller using a filter status algorithm that compares fluid level sensor data to expected data. A filter permeability condition might be indicated when the reductant dosing rate exceeds the rate at which fluid can move through the sock filter from the inlet volume to the outlet volume. A filter permeability condition may eventually lead to a system fault.

Abstract: An exhaust emissions prediction system includes a catalytic device configured to receive a flow of exhaust and a downstream NOx sensor located downstream of the catalytic device. The downstream NOx sensor is sensitive to NOx and ammonia, and is configured to generate a measured value. The system also includes a controller connected to the downstream NOx sensor. The controller is configured to determine a predicted value for the downstream NOx sensor, determine a mass flow rate of the flow of exhaust into the catalytic device, adjust the mass flow rate based on the predicted value and the measured value, and determine at least one emissions characteristic downstream of the catalytic device using the adjusted mass flow rate.

Abstract: Systems, methods and apparatus are disclosed for targeted regeneration of a catalyst device in an exhaust aftertreatment system of an internal combustion engine. The targeted regeneration can include interpreting, initiating, and/or completing a regeneration event for an SCR catalyst or other type of catalyst in response to a catalyst deactivation condition. A catalyst regeneration event includes at least one of exposing the catalyst to a sufficiently high temperature over a time period that removes contaminants from the catalyst and manipulation of the exhaust gas composition to initiate and/or accelerate removal of contaminants from the catalyst.

Abstract: An exhaust treatment system includes a catalytic device configured to receive an exhaust flow and an injector upstream of the catalytic device in an exhaust flow direction that injects a reductant into the exhaust flow. A controller is configured to determine a change in an amount of NOx and a change in an amount of the reductant downstream of the catalytic device due to a change in an amount of the reductant injected by the injector. The controller is configured to determine a slip factor corresponding to a relative weight of a NOx slip rate exiting the catalytic device compared to a reductant slip rate exiting the catalytic device, and determine a dosing command for providing to the injector based at least in part on the slip factor, and the change in the amount of NOx and the change in the amount of the reductant downstream of the catalytic device.

Abstract: An amount of NOx discharged from an internal combustion engine at the time of reducing the NOx stored in an NOx storage reduction catalyst is decreased.

Abstract: An ECU executes a program including the steps of: determining whether an insulation resistance Ri is smaller than a threshold value Ri(0); if the insulation resistance Ri is smaller than the threshold value Ri(0), determining whether there is electric leakage between a vehicular body and an EHC and whether there is a possibility that there is electric leakage at a location other than a location between the vehicular body and the EHC; and if there is electric leakage between the vehicular body and the EHC, performing heating control.

Abstract: A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at the upstream end of the mixing conduit; an injector coupled to the exhaust conduit and configured to direct reactants into the exhaust conduit towards the mesh; and an annular bypass defined between the mixing conduit and the exhaust conduit for allowing exhaust to bypass the upstream end of the mixing conduit and to enter the mixing conduit downstream of the mesh.

Abstract: An exhaust heat recovery device according to one aspect of the present invention comprises an exhaust pipe, a branch port, a heat exchange part, an exhaust port, an opening and closing unit, and a shell member. The shell member comprises an intersecting plane intersecting a virtual ray that extends from an end part of an outlet of the exhaust pipe on a side of the exhaust port, the end part serving as a starting point, and the virtual ray being inclined outwardly at an angle of 7° with respect to an axial direction of the exhaust pipe, and the intersecting plane forms an angle of 90° to 97° with respect to the virtual ray. The exhaust port is positioned between the outlet and the intersecting plane in the axial direction.

Abstract: An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhaust heat recovery control device is mounted when the freezing in the exhaust pipe is predicted.