Abstract: A compound engine assembly including a common air conduit having an inlet in fluid communication with ambient air, a compressor, at least one internal combustion engine having an inlet in fluid communication with an outlet of the compressor, a turbine section having an inlet in fluid communication with an outlet of the at least one internal combustion engine, the turbine section configured to compound power with the at least one internal combustion engine, and at least one heat exchanger in fluid communication with the common air conduit, each of the at least one heat exchanger configured to circulate a fluid of the engine assembly in heat exchange relationship with an airflow from the common air conduit circulating therethrough. The compressor has an inlet in fluid communication with the common air conduit upstream of the at least one heat exchanger. The internal combustion engine may be a reciprocating engine.

Abstract: An engine assembly including an engine core including at least one internal combustion engine each including a rotor sealingly and rotationally received within a respective internal cavity to provide rotating chambers of variable volume in the respective internal cavity, a compressor having an outlet in fluid communication with an inlet of the engine core, a first intake conduit in fluid communication with an inlet of the compressor and with a first source of air, a second intake conduit in fluid communication with the inlet of the compressor and with a second source of air warmer than the first source of air, and a selector valve configurable to selectively open and close at least the fluid communication between the inlet of the compressor and the first intake conduit. A method of supplying air to a compressor is also discussed.

Abstract: A control system for an internal combustion engine includes an electric supercharger that includes a compressor wheel that is configured to be rotated by an electric motor. The control system includes a bypass passage, a bypass valve, and an exhaust gas recirculation passage. The control device is configured to control the electric supercharger and the bypass valve based on an operation condition of the internal combustion engine. The control device is configured to cause a stepping operation of the electric supercharger in which acceleration and stopping of the compressor wheel are repeated within a predetermined cleaning time after operation of the internal combustion engine is stopped.

Abstract: An engine arrangement includes a first engine unit, a second engine unit and at least one member for fastening the second engine unit to the first engine unit. The first unit and the second unit include fluid ports for achieving a fluid flow between the first and second unit. The engine arrangement further includes a valve for opening and closing at least one of the fluid ports and the fastening member is moveably arranged relative to the first unit and second unit and is arranged to act on the valve.

Abstract: An internal combustion engine, which includes a collection device that is arranged in an exhaust pipe through which an exhaust gas emitted from a cylinder passes and collects PM contained in the exhaust gas and an NOx sensor that is arranged on an upstream side of the collection device and detects an NOx content in the exhaust gas, includes: an estimating device which estimates a PM content in the exhaust gas at the upstream side of the collection device from a detection value of the NOx sensor, based on a trade-off relation between an NOx emission amount and a PM emission amount from the cylinder.

Abstract: In accordance with one aspect of the disclosure, a gas turbine engine, method of using and designing such is disclosed. The gas turbine engine may comprise a fan including a plurality of blades, and a variable area fan nozzle. The fan may be configured to have a design point fan tip leading edge relative flow angle ?ADP, and may be further configured to have an off-design point fan tip leading edge relative flow angle ? at an off-design fan operating point. The variable area fan nozzle may be configured to manipulate the amount of air flowing through the fan so that the absolute value of a difference between the design point fan tip leading edge relative flow angle ?ADP and the off-design point fan tip leading edge relative flow angle ? is in a specified range.

Abstract: A turbocharger includes a turbine housing and a wastegate. The turbine housing has an accommodation space, is which a turbine wheel is accommodated. The accommodation space is connected to a scroll passage, which draws exhaust gas from the outside of the turbine housing, and a connection passage, which discharges exhaust gas from the accommodation space. The connection passage is connected to a merging passage, which discharges exhaust gas to the outside of the turbine housing. The merging passage is connected to a bypass passage, which bypasses the accommodation space. The central axis of an outlet portion of the connection passage is inclined with respect to the rotation axis of the turbine wheel toward the side on which an outlet portion of the bypass passage is located.

Abstract: A container assembly for a motor vehicle comprises a first container (20) for a fuel for the motor vehicle and a second container (10) for a liquid auxiliary agent, in particular for the reducing agent solution of an SCR catalyst. The second container (10) is integrated into the first container (20). A bottom-mounted removal device having at least one pump (11) for removing the auxiliary agent is provided in the second container (10).

Abstract: An exhaust manifold mounting structure for an engine includes: a bolt fixed to the engine; a flange integrally formed with the exhaust manifold or disposed inside the exhaust manifold and including a bolt hole through which the bolt penetrates; a nut engaged with the bolt that penetrates the flange; and a loosening prevention plate through which the bolt penetrates, and which is disposed between the nut and the flange. The loosening prevention plate extends in a length direction of the flange.

Abstract: The present disclosure relates to a rotary engine which includes a cylinder having a gas inlet and a gas outlet, two rotors which are mounted inside the cylinder and can rotate freely, pistons fixed on the rotors, an ignition device provided on an inner wall of the cylinder and a planetary conical gear differential located outside the cylinder. The planetary conical gear differential includes a first sun gear and a second sun gear. The first rotor and the second rotor are superposed concentrically, the first rotor is connected to the first sun gear through a spindle, and the first rotor and the second rotor are connected to the planetary conical gear differential on a same side of the planetary conical gear differential. The cylinder is a circular ring body. The pistons are in circular motion along with the rotors. A differential rotary engine capable of rotating normally is provided.

Abstract: Technical solutions are described for an emissions control system for controlling a selective catalytic reduction (SCR) device of an exhaust system of an internal combustion engine. An example computer-implemented method includes governing a reductant dosing in the SCR device. For example, governing the dosing includes computing a reductant dosing rate based on a chemical model of the SCR device. Further, the governing includes determining a temperature modulation factor based on inlet temperature of exhaust gas input for the SCR. The method further includes adjusting the reductant dosing rate by scaling the reductant dosing rate by the temperature modulation factor. The method further includes causing an amount of reductant to be injected into an SCR catalyst according to the adjusted reductant dosing rate.

Abstract: There is provided an exhaust gas cleaning apparatus for cleaning exhaust gas discharged from an internal combustion engine that includes an upstream side exhaust pipe and a downstream side exhaust pipe that are located on an upstream side and a downstream side, respectively, with respect to a flow direction of the exhaust gas discharged from the internal combustion engine. A filter unit is disposed between the upstream side exhaust pipe and the downstream side exhaust pipe and removably connected at opposite sides thereof to the upstream side exhaust pipe and the downstream side exhaust pipe. The filter unit includes a filter that captures particulate matter contained in the exhaust gas flowing in the upstream side exhaust pipe, a casing in which the filter is accommodated, and a thermal insulator that covers an entire outer peripheral surface of the casing. A handle is provided on the thermal insulator.

Abstract: A shovel includes a lower traveling body; an upper turning body that is installed on the lower traveling body; an internal-combustion engine disposed in the upper turning body; an oil hydraulic pump that discharges hydraulic oil by power of the internal-combustion engine; a hydraulic actuator that is driven by the hydraulic oil discharged by the oil hydraulic pump; a fuel container that stores fuel of the internal-combustion engine; a first detector that detects a residual quantity state of the fuel; a reducing agent container that stores a reducing agent to be used in a selective catalytic reduction system; a second detector that detects a residual quantity state of the reducing agent; and an image display unit that is installed in a cabin, wherein the image display unit is configured to simultaneously image-display the residual quantity state of the fuel and the residual quantity state of the reducing agent.

Abstract: A selective catalytic reduction including a decomposition section including an intake chamber, with a swirl generating plate disposed in an internal volume of the intake chamber. The swirl generating plate includes a curved sidewall, a first end defining an opening, and a second end. The curved sidewall is oriented substantially normal to the direction of an intake flow of exhaust gas and a convex surface of the curved sidewall is oriented to face the direction of the intake flow. The swirl generating plate is configured to divide the intake flow into a first flow portion flowing through the opening, a second and a third flow portion which are directed substantially normal to the direction of intake flow and the flow direction of the first flow portion, and in opposite directions to each other towards a backwall of the intake chamber so as to create opposing swirls.

Abstract: Methods and systems are provided for exhaust gas heat recovery at an exhaust gas heat exchanger. Exhaust gas may flow in both directions through an exhaust bypass passage and the heat exchanger coupled to the bypass passage. Hot or cold EGR may be delivered from the exhaust passage to the engine intake manifold and heat from the exhaust gas may be recovered at the heat exchanger.

Abstract: A combustion chamber for rotary engine includes an inner chamber having a spherical interior wall surface and including a left-half and a right-half chamber tightly connected together; and an outer casing including an upper cover, a lower cover and a locating plate. The left-half chamber has an intake pipe arranged on a left end thereof and a spark-plug mounting pipe perpendicularly extended from a right end thereof; and the right-half chamber has an exhaust pipe arranged on a right end thereof. The upper and lower covers are fitted onto upper and lower sides of the inner chamber, respectively; and the locating plate is provided with a central opening for the spark-plug mounting pipe to extend therethrough. The upper and lower covers and the locating plate are screw-fastened together to form the complete outer casing, such that the inner chamber is confined in the outer casing to maintain an integral state.

Abstract: A turbocharger adjustment device adapted to alter the performance of a variable geometry turbocharger delivering boost pressure to an engine, comprising a replacement piston cap and a movable adjustment rod. The turbocharger adjustment device integrates with the actuator controlling the opening and closing of the variable inlet through which exhaust gas from the engine passes to turn the turbine wheel and compressor of the turbocharger. The replacement piston cap replaces the cap of the actuator so that the adjustment rod extends into the actuator housing interior to abut against and restrict the movement of the piston which actuates the variable inlet, preventing the piston from opening the variable inlet. The turbocharger adjustment device prevents the decrease in boost pressure caused by the variable inlet opening in response to an increase in exhaust gas pressure, and allows the user to customize the maximum area of the variable inlet.

Abstract: A dosing module for an emissions abatement system, the dosing module including an armature, means for moving the armature and a valve body having an outlet; the dosing module having an unblocked condition, in which the armature is moveable between a first position, in which the outlet is closed by the armature, and a second position, in which the armature is spaced apart from the outlet, and wherein, in use, application of electricity to the means for moving the armature at a first level of energy causes the armature to move from the first position to the second position; the dosing module further having a blocked condition, in which flow of a liquid through the outlet is prevented, wherein, in use, application of electricity to the means for moving the armature at a second level of energy causes the dosing module to change to the unblocked condition.

Abstract: An exhaust gas turbocharger (10) including a turbine section (14), a compressor section (12), a bearing housing (16) disposed between an fluidly connected to the turbine section (14) and the compressor section (12), and an oil flow means connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42).

Abstract: There is provided: a NOx-occlusion-reduction-type catalyst 32 that is provided in an exhaust passage 13 of an internal combustion engine 10; a NOx purge control unit 60 that performs a NOx purge control of setting the exhaust in the rich state and reducing and purifying NOx occluded in the NOx-occlusion-reduction-type catalyst 32; and a NOx purge inhibition processing unit 70 that inhibits NOx purge control when the internal combustion engine 10 becomes a motoring state in which fuel injection is stopped, and inhibiting, when the internal combustion engine 10 has started fuel injection during the inhibition of the NOx purge control, performance of the NOx purge control from the start of the fuel injection until a predetermined period of time has elapsed.