Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a rotating assembly and a sensor. The rotating assembly is configured to rotate about an axis. The rotating assembly includes an engine shaft, a phonic wheel and a lubricant scoop. The phonic wheel is mounted onto the engine shaft. The phonic wheel includes an outer surface and a plurality of apertures arranged circumferentially about the axis. Each of the apertures projects at least partially radially into the phonic wheel from the outer surface. The lubricant scoop is radially outboard of and axially overlaps the outer surface. The sensor is configured to measure fluctuations in a magnetic field induced by the phonic wheel during rotation of the rotating assembly about the axis.

Abstract: An aftertreatment system for a vehicle is connectable to an internal combustion engine The aftertreatment system includes an oxidation catalyst, a first NOx sensor arranged upstream the oxidation catalyst, a second NOx sensor arranged downstream the oxidation catalyst, and a control unit comprising a processor device configured to determine a sensor based conversion ratio of nitric oxides to nitrogen dioxides by the oxidation catalyst from data received from first and second NOx sensor, obtain an estimated conversion ratio of nitric oxides to nitrogen dioxides by the oxidation catalyst from a model, and determine a malfunction condition of the aftertreatment system in response to the sensor based conversion ratio being different from the estimated conversion ratio, and perform a responsive action of the aftertreatment system based on the malfunction condition.

Abstract: A cylindrical can body capable of housing a honeycomb structure therein, the cylindrical can body including: a coil for induction-heating the honeycomb structure; a cylindrical member made of an insulating material; and a cylindrical metal member capable of housing the coil and the cylindrical member therein, wherein, in a cross section parallel to an axial direction of the cylindrical member, (i) the coil is provided radially outward from an inner circumferential surface of the cylindrical member, and at least a part of the coil is embedded in the cross section of the cylindrical member; or (ii) the coil is provided on an outer circumferential portion of the cylindrical member.

Abstract: Heating of the charge air in an intake is provided by a working fluid that is circulated through the intake to exchange heat with the charge air. The heated charge air can be used in response to a thermal management condition for an exhaust gas produced by operation of the internal combustion engine.

Abstract: A method for determining a combustion gas composition of a combustion gas for an internal combustion engine includes operating the engine, and establishing an operating point of the internal combustion engine during operation. The method also includes detecting a nitrogen oxide emission of the internal combustion engine at the operating point. The method further includes detecting an exhaust gas temperature of the internal combustion engine at the operating point, and detecting a combustion air ratio of the internal combustion engine at the operating point. The combustion gas composition of the combustion gas is determined based on the operating point, the detected nitrogen oxide emission, the detected exhaust gas temperature and the detected combustion air ratio.

Abstract: A rim seal arrangement for a gas turbine engine includes a rotor and a stator. The rotor includes blades circumferentially spaced about a disc hub, each blade including a rotor flange. The stator includes vanes circumferentially spaced and attached to a stationary component, each vane including a stator flange. The stator flange includes an outer surface, an inner surface, a chamfer, and a groove for producing a recirculation flow adjacent to a radial gap between the rotor flange and the stator flange.

Abstract: Dual propeller assemblies for driving engagement by a propeller drive shaft may include at least two propellers having a forward propeller and a rear propeller rearwardly of the forward propeller. The forward propeller may include a forward propeller hub with a forward propeller hub wall having a forward propeller hub outer diameter. A forward propeller hub bore may be formed by the forward propeller hub wall and configured to receive the propeller drive shaft for driving engagement of the forward propeller hub thereby. The forward propeller hub bore may form a passageway for flow of exhaust gas configured to traverse the forward propeller between the propeller drive shaft and the forward propeller hub wall. The rear propeller may include a rear propeller hub with a rear propeller hub wall having a rear propeller hub outer diameter less than the forward propeller hub outer diameter of the forward propeller hub wall of the forward propeller hub.

Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.

Abstract: An assembly for an aircraft propulsion system includes an intercooler assembly and a controller. The intercooler assembly includes an intercooler and a flow control assembly. The intercooler includes a primary air inlet, a primary air outlet, a secondary air inlet, and a secondary air outlet. The flow control assembly is disposed at the secondary air outlet. The flow control assembly includes an actuator and at least one flap. The actuator is configured to position the at least one flap in an open position, a closed position, and intermediate positions. The controller is configured to control the actuator to position the at least one flap in the open position, determine a hot-side heat transfer effectiveness of the intercooler and a hot-side mass flow rate for the intercooler, determine a cold-side mass flow rate of the intercooler, identify a position of the actuator, and identify a successful or an unsuccessful actuator range check for the actuator.

Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a rotating assembly and a sensor. The rotating assembly is configured to rotate about an axis. The rotating assembly includes an engine shaft, a phonic wheel and a lubricant scoop. The phonic wheel is mounted onto the engine shaft. The phonic wheel includes an outer surface and a plurality of apertures arranged circumferentially about the axis. Each of the apertures projects at least partially radially into the phonic wheel from the outer surface. The lubricant scoop is radially outboard of and axially overlaps the outer surface. The sensor is configured to measure fluctuations in a magnetic field induced by the phonic wheel during rotation of the rotating assembly about the axis.

Abstract: The disclosure provides a method and a device for closed-loop control of a temperature of a component in an exhaust-gas tract of an internal combustion engine. The exhaust-gas tract has a temperature sensor arranged upstream of the component. The method includes providing a control circuit for the closed-loop control of the temperature of the component and detecting a measurement signal by the temperature sensor during the operation of the internal combustion engine. The measurement signal is characteristic of an exhaust-gas temperature. The measurement signal is used as a measured controlled variable for the control circuit for the closed-loop control of the temperature of the component. The method also includes determining a temperature model for the exhaust-gas temperature of the exhaust gas upstream of the component. The temperature model is used as a predictor for the control circuit. Also, a modeled controlled variable is provided from the temperature model.

Abstract: Methods and systems are provided to heat a catalyst of an after-treatment system for a vehicle. The after-treatment system is powered by a battery. An operational parameter of the battery and the driving mode of the vehicle is determined. After receiving an indication that a first operational parameter threshold has been surpassed and a torque demand of the vehicle has been predicted, heat is provided to the catalyst of the after-treatment system based on the predicted torque demand of the vehicle surpassing a second operational parameter threshold.

Abstract: There is provided a control device that controls an injection amount of a reducing agent to be supplied to a selective reduction catalyst provided in an exhaust passage of an internal combustion engine. The control device includes a pre-correction injection amount calculation unit configured to calculate a pre-correction injection amount of the reducing agent based on an operating state of the engine, and an injection amount correction unit configured to calculate a corrected injection amount obtained by correcting the pre-correction injection amount, based on a rate of change over time of a rotation speed of the engine and a rate of change over time of a fuel injection amount of the engine, such that the injection amount of the reducing agent increases when at least both the rate of change over time of the rotation speed and the rate of change over time of the fuel injection amount are positive.

Abstract: Systems and methods for modulating power provided to a heating element of a vehicle exhaust system is provided. One system includes a controller controlling a switch, and an alternator having a first field terminal input, wherein the first field terminal input is connected to the switch. The system further includes a heating element connected to at least an output of the alternator. The controller is configured to determine a power demand for the electric heating element and modulate the first field terminal input to cause the alternator to provide power to the heating element according to the power demand.

Abstract: A method for operating a wind turbine, and the wind turbine comprises a generator for generating electrical power from wind, the generator having a generator axis, a nacelle for supporting the generator, and a tower for supporting the nacelle, the tower having a tower axis, and the method comprises the steps sensing at least one tower vibration by means of a vibration sensor, sensing a mechanical generator vibration, caused by at least one electrical fault, by means of the same vibration sensor, and controlling the wind turbine in dependence on the sensed tower vibration and the sensed generator vibration.

Abstract: An exhaust gas cleaning system for cleaning exhaust gas onboard a ship includes an exhaust gas inlet for receiving exhaust gas, and a scrubber having a scrubbing section to clean exhaust gas from pollutants. The scrubbing section includes an exhaust gas inlet for receiving exhaust gas and an exhaust gas outlet for outputting exhaust gas. A wet Electrostatic Precipitator further cleans the exhaust gas after cleaning in the scrubbing section. The Precipitator includes an exhaust gas inlet communicating with the outlet of the scrubbing section for receiving the exhaust gas, an exhaust gas outlet for outputting the exhaust gas, and at least one channel to convey the exhaust gas from the inlet to the outlet of the Precipitator. Ejection devices are arranged between the scrubbing section and the channel, and each includes an ejection orifice facing the Electrostatic Precipitator and arranged to eject liquid towards the channel to clean it.

Abstract: An exhaust gas processing device includes: a manifold configured to change a travelling direction of exhaust gas from a first direction to a second direction; a first catalyst carrier into which the exhaust gas that has been guided from the manifold flows, the first catalyst carrier being configured to purify the exhaust gas that is flowing in the second direction; a heater provided on the upstream of the first catalyst carrier in the flowing direction of the exhaust gas, the heater being configured to heat the exhaust gas that has entered from the manifold; and a case accommodating the first catalyst carrier and the heater, wherein an inlet-side opening portion of the case is inserted into the manifold to a position facing an inlet of the manifold, and the inlet-side opening portion is formed with an inlet-side cut-out portion configured to allow passage of the exhaust gas.

Abstract: System (1) for the purification of exhaust gases (S) of an endothermic engine (100), comprising at least one duct (2) for exhausting the gases produced by said endothermic engine, means (3) for cooling said exhaust gases which cross said duct (2) so that to cause, at least in part, the condensation of the water vapor contained in said exhaust gases in water (AC), and means (4) for separating the condensed water (AC), which is condensed by said cooling means along the exhaust duct, from the exhaust gases and for deviating it along a secondary duct (10), said system being characterized by further comprising filtering means (5), which are arranged downstream of said separating means (4) along said secondary duct (10), for filtering said condensed and separated water (AC).

Abstract: An internal combustion engine system includes an internal combustion engine, a main exhaust aftertreatment system with a main catalytic converter, and a light-off catalyst bypass system with a bypass passage and a bypass catalytic converter. An emissions control system includes a controller in signal communication with a first oxygen sensor disposed upstream of the bypass catalytic converter, and a second oxygen sensor disposed downstream. The emissions control system performs a diagnostic of the bypass catalytic converter, by the controller, including (i) monitoring signals from the first and second oxygen sensors for a predetermined time period during an engine cold start condition, (ii) determining a ratio of oxygen content at the second oxygen to the first oxygen sensor based on the signals from the first and second oxygen sensors, and (iii) comparing the determined ratio to a predetermined threshold ratio to determine if the bypass catalytic converter has failed.

Abstract: A turbine assembly for an internal combustion engine having: a first turbine that rotates around a first rotation axis and is configured to rotate due to the thrust exerted by exhaust gases emitted by the internal combustion engine; a second turbine which is independent of and separate from the first turbine, rotates around a second rotation axis parallel to and spaced from the first rotation axis, and is configured to rotate due to the thrust exerted by exhaust gases emitted by the internal combustion engine; an electric generator operated by the first turbine; and a transmission device that connects both the turbines to the same electric generator.