Abstract: A compressor is disclosed for a charging device of an internal combustion engine. An iris diaphragm mechanism is arranged upstream of the compressor wheel. An actuator is mechanically coupled to an adjusting ring of the iris diaphragm mechanism for transmitting torque of an actuator shaft to the adjusting ring for rotating the adjusting ring. A pivotable coupling pin is arranged eccentrically on the actuator shaft and has a bearing bush which is displaceable along a longitudinal axis of the coupling pin. The bearing bush is mounted between two fingers of an adjusting lever of the adjusting ring so as to be displaceable along the fingers. An outer contact surface of the bearing bush is spherical. Inner contact surfaces of the two fingers are cylindrical to correspond to the spherical outer contact surface of the bearing bush and are in sliding contact with the outer contact surface of the bearing bush.

Abstract: A waste heat recovery system includes a first heat exchanger, a second heat exchanger, and an expander. The first heat exchanger receives working fluid from a first portion of a first loop and provides the working fluid to a second portion of the first loop. The second heat exchanger receives the working fluid from a first portion of a second loop and provides the working fluid to a second portion of the second loop. The expander provides the working fluid to a first portion of a common line. The expander includes a stator. The stator includes a first inlet and a second inlet. The common line provides the working fluid to both the first loop and the second loop upstream of the first portion of the first loop and upstream of the first portion of the second loop.

Abstract: Methods and systems are provided for coordinated operation of electric variable geometry turbocharger (e-VGT), an exhaust gas recirculation (EGR), and electric motor coupled to the e-VGT for expedited catalyst light-off. In one example, a method may include, during a cold-start, decreasing each of an opening of e-VGT vanes and an opening of an EGR valve while operating the electric motor for braking and reducing the e-VGT speed.

Abstract: Methods and systems are provided for improving surge control in a boosted engine system configured with an electric motor to provide electrical boost assistance. Tip-in and tip-out surge are addressed by increasing the opening of a compressor recirculation valve and coordinating the recirculation valve opening with adjustments to an exhaust waste-gate position and a power output by the electric motor. The adjustments enable an intake airflow to be provided that operates the compressor outside a surge region while providing a target boost pressure as operator torque demand increases or decreases.

Abstract: An engine assembly including an internal combustion engine configured to be received in an engine compartment and a heat exchanger having a first conduit fluidly connected to a fluid circuitry of the engine and a second conduit fluidly connecting an interior of the engine compartment to its environment. The first conduit is in heat exchange relationship with the second conduit. The assembly further includes a forced air system operable in use to provide an air flow from the environment to the outlet via the second conduit of the heat exchanger and the engine compartment. The assembly further includes a selector valve configurable to selectively fluidly connect an air intake of the internal combustion engine with the interior of the engine compartment in a first valve position and with the environment in a second valve position. A method for supplying air to an internal combustion engine is also discussed.

Abstract: A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.

Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation (EGR) to an intake passage via a ported scavenge manifold. In one example, the ported scavenge manifold includes a first scavenge manifold coupled to a plurality of exhaust runners and a second scavenge manifold coupled to the plurality of exhaust runners via ports. The location of the ports on the exhaust runners combined with adjustments to a bypass valve coupled between the first scavenge manifold and an exhaust passage and an EGR valve coupled between the second scavenge manifold and the intake passage enables exhaust gas to be preferentially flowed to the exhaust passage and blowthrough air to be preferentially flowed to the intake passage under select operating conditions.

Abstract: A method for operating an electric machine of a compressor and/or of a turbine, which includes a rotor situated on a shaft mounted rotatably in a housing and a stator fixed to the housing, the stator including an, in particular, multiphase drive winding, and an activation of the drive winding being suspended at least intermittently in an idling mode. It is provided that the shaft and/or the rotor is/are monitored for a rotary movement, and that, when a standstill or an impending standstill of the shaft and/or of the rotor is detected, the drive winding is activated in such a way that the rotor, at least briefly, is caused to carry out a movement and/or is centered with respect to the stator by magnetic force.

Abstract: The present invention relates to an exhaust gas heat exchanger capable of controlling the cooling performance. The exhaust gas heat exchanger includes: a cooler through which cooling water flows and in which a plurality of gas tubes is provided to allow exhaust gas to flow; an intake and exhaust block including an intake part, a supply line, a discharge line, a bypass line, and a first flap; a U-turn block including an inflow part, a re-cooling line, a release line, and a second flap; and an air duct.

Abstract: An air intake heater system for a combustion engine, comprising; a turbocharger, a high pressure EGR conduit, a low pressure EGR conduit, and an air intake conduit, where the system comprises a heat exchanger arranged upstream of the turbocharger, where the heat exchanger comprises a first flow channel connecting an air inlet to an inlet of the turbocharger and a second flow channel, where the second flow channel is part of the high pressure EGR conduit. The advantage of the invention is that intake air and low pressure EGR gas can be heated by the high pressure EGR gas, and that high pressure EGR gas can be cooled by intake air.

Abstract: A piston arrangement is provided. The piston assembly includes a track and a piston moveable within a cylinder. The track is rotatable relative to the cylinder about an axis of rotation and has a cam surface and an edge surface extending away from the cam surface. The piston is coupled to the track by a follower running on the cam surface. The cam surface is shaped such that, as the track moves relative to the cylinder, the piston head moves in reciprocating motion within the cylinder along a piston axis in accordance with the path of the cam surface. The piston axis is perpendicular to the track axis of rotation. A stabilizing element is connected to the piston, the stabilizing element extending below the piston head and comprising a contact surface which engages the edge surface of the track.

Abstract: Electric energy generating device (1) for installation to an exhaust conduit (2) in which an exhaust gas (9) is flowing, comprising: —a thermoelectric generator (3) comprising a hot side (4) and a cold side (5), —at least one hot side heat transfer loop (6) comprising a fluid conduit circuit having a thermal fluid circulating therein, and where the fluid conduit circuit comprises: —a first in section (7) n thermal contact with the hot side (4), —a second section (8) adapted to be in thermal contact with the exhaust gas (9), —a third section (10) and a fourth section (11), wherein the third section (10) and the fourth section (11) each comprises at least one vibrational damping part (12), wherein each of the at least one vibrational damping part (12) comprises a heat resistant and flexible tube integrated into the third section (10) and the fourth section (11) of the fluid conduit circuit.

Abstract: A method of improving fuel delivery in an engine having one or more cylinders that are over-fueled related to other cylinders, such as a D-EGR engine. The fueling system uses a mechanical fuel pump, which is cam-driven. The cam has lobes corresponding to the desired displacement for each cylinder. The lobe corresponding to the over-fueled cylinder is shaped differently, such that the filling stroke of the pump is increased.

Abstract: A method of implementing control logic of a compression ignition engine is provided. The engine includes an injector, a variable valve operating mechanism, an ignition plug, at least one sensor, and a processor. The processor outputs the signal to the ignition plug in a specific operating state so that unburnt mixture gas combusts by self ignition after the ignition plug ignites the mixture gas inside a combustion chamber. The method includes determining a geometric compression ratio ? of the engine, and determining control logic defining a valve opening angle CA of an intake valve. The valve opening angle CA (deg) is determined so that the following expression is satisfied, if the geometric compression ratio ? is ?<14, ?40?+800+D?CA?60??550+D. Here, D is a correction term according to the engine speed NE (rpm), D=3.3×10?10NE3?1.0×10?6NE2+7.0×10?4NE.

Abstract: A cooling module is coupled to an engine system and a Rankine cycle waste heat recovery system. The cooling module includes a heat exchanger for cooling a fluid of the engine system and a condenser for cooling a working fluid of the Rankine cycle waste heat recovery system, both of which extend in a width direction of the cooling module and are porous to a flow of cooling air in a depth direction of the cooling module. The condenser includes a first tubular header that extends in a height direction of the cooling module. A working fluid transfer tube fluidly couples the first tubular header to the Rankine waste heat recovery cycle system. The working fluid transfer tube has a first portion extending in the depth direction and a second portion extending in the height direction, the second portion being adjacent to the first tubular header in the width direction.

Abstract: The present disclosure aims to stabilize, in an engine with a supercharger, a detection result of an intake air temperature sensor interposed between the supercharger and an intercooler. A gas outlet of a supercharger and a gas inlet of an intercooler are connected together via a second passage. The second passage includes, in its middle position, a narrow region with a smaller cross-sectional area than the part of the second passage extending from an upstream end of the second passage to the middle position. The narrow region is provided with the intake air temperature sensor configured to detect the gas temperature in the narrow region.

Abstract: A cooling arrangement for a WHR-system in a vehicle, includes a first cooling circuit including a first radiator in which a circulating coolant is cooled, and a second cooling circuit including a second radiator in which a coolant is cooled to a lower temperature than the coolant in the first radiator. A condenser inlet line directs coolant from one of the cooling circuits to a condenser to provide cooling for a working medium flowing therethrough. A cooling adjusting device adjusts the temperature of the coolant in the inlet line to the condenser by the coolant in the other cooling circuit based on information received about the coolant such that the coolant in the condenser inlet line provides the estimated suitable cooling of the working medium in the condenser.

Abstract: Methods and systems are provided for an electric turbocharger power lead. In one example, a system may include a conduit comprise at least one coolant jacket surrounding a passage housing a set of electric leads extending from an energy storage device to the electric turbocharger.

Abstract: A supercharging system includes a first supercharger including a first compressor; a second supercharger including a second compressor provided downstream of the first compressor, and a controller controlling the first and second superchargers. At least one of the first and second superchargers includes an electric motor for driving the first or second compressor. At least one of the first and second superchargers includes a turbine, and a nozzle vane that adjusts a flow-path area of the exhaust gas flowing into the turbine. When a charge amount of a battery is low, the controller sets an upper limit of an output command value for the motor to be lower than when the charge amount is not low, or starts regenerative operation of the motor. A vane control part controls an opening degree of the nozzle vane so that the flow-path area decreases with a control of the electric motor.

Abstract: An intercooler cooling apparatus is provided. The apparatus cools an intercooler installed between a compressor of a turbocharger and an engine to adjust an oil temperature. The apparatus includes a water tank that surrounds a part of an outer side of the intercooler, in which cooling water discharged from the engine flows into a first side to exchange heat with the intercooler and the cooling water is discharged through a second side. An ATF warmer and an air conditioner refrigerant line are also installed in the water tank, in which oil of a transmission is circulated.