Abstract: A self-propelled harvesting machine has a lifting device for a front attachment and at least one crawler track assembly which is provided with a damping system, and which is formed by a crawler track disposed on an axle of the harvesting machine and on either side of the axle, and the height of the harvesting machine can be changed by varying the spring travel of the hydropneumatic damping system of the crawler track assembly.

Abstract: One embodiment relates to a universal mounting structure for a lawn striper including a first bracket, a second bracket, a third bracket, a pin, and a spring. The first bracket is configured for mounting to a frame of a lawn mower and includes at least one aperture. The second bracket includes an aperture. The pin is received through the at least one aperture of the first bracket and through the aperture of the second bracket to rotationally couple the first bracket and the second bracket. The third bracket is rotationally coupled to the second bracket and moveable relative to the second bracket between a first position and a second position. The spring is interconnected between the second bracket and the third bracket to bias the third bracket in the first position. A longitudinal axis of the spring remains perpendicular to a longitudinal axis of the lawn mower regardless of how the first bracket is mounted to the frame of the lawn mower.

Abstract: A chopping assembly for a harvesting implement having a blade assembly, a housing, and a guide. The blade assembly is disposed within the housing and the guide directs cornstalks toward an input port on the housing. The blade assembly not only cuts the cornstalk from its root but also chops the stalk into stover. A fluid dynamic force is created by the blade assembly to direct the stover with the aid of the housing to an output port.

Abstract: Biomass handling and processing systems and methods are provided. In one embodiment, a method includes cutting biomass, transferring the cut biomass to an auger, utilizing the auger to form a row of biomass, and baling the row of biomass. The biomass is optionally transferred from the auger to the baler utilizing one or more conveyors. Additionally, one or more cleaning steps may be performed to separate contaminants from the biomass. In another embodiment, a biomass processing system includes a sickle, a pick-ups unit, and an auger. Biomass is cut by the sickle and transferred to the auger utilizing the pick-ups unit. The auger forms the biomass into a row. The row of biomass may then be transferred to a baler utilizing a conveyor. Systems also optionally include a rotor located between the pick-ups unit and the auger, and one or more grates that reduce contamination included with the biomass.

Abstract: A harvesting machine includes a harvesting header with a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly. The draper assembly includes a center draper that delivers crop material to a feeder house of the harvesting machine. The center draper includes a draper frame swingably supported on the header frame at a pivot to project forwardly therefrom and a draper belt supported on the draper frame to present a rearwardly moving run for conveying the crop rearwardly. The center draper includes a counterbalance mechanism coupled between the header and draper frames to counteract the weight of the center draper about the pivot.

Abstract: A riding mower having left and right driving rear wheels independently drivable forward and backward and a pair of left and right steerable front wheels is provided with a support device capable of being mounted with a cylindrical gas cylinder in a horizontal position on an external side of a rollover projection frame. The support device is provided such that the mounted gas cylinder is positioned along front and rear of the rollover protection frame and is mounted in a tilted state in which the central axis of the cylindrical gas cylinder is closer to a central side in a lateral direction of a vehicle body toward a rear side from a plan view.

Abstract: A robotic mower housing includes a one piece molded bottom chassis having an inner wall and an outer wall. A top cover is removably attached to and covers the bottom chassis. An outer seal is provided between the outer wall of the bottom chassis and the top cover, and an inner seal between the inner wall of the bottom chassis and the top cover. The vehicle control unit and other electronic components may be located in the inner cavity inside the inner seal and an outer cavity between the outer seal and the inner seal.

Abstract: Embodiments of the invention are directed to apparatus for selectively inverting one or more windrows of crop material on the ground as the apparatus is moved in a forward direction, each of the windrows having a lower surface and a generally defined width, the apparatus comprising, a frame for attachment to a vehicle, a first transport mechanism for picking up the crop material of a windrow, moving the crop material in a rearward direction, turning the crop material through a generally horizontal arc and depositing the turned crop material in an inverted condition, the first transport mechanism being movable between a raised non-operating position and a lowered operating position, a second transport mechanism having substantially the same structure and functionality as the first transport mechanism, and a hydraulic control system selectively moving the transport mechanisms between the raised and lowered positions and for driving the transport mechanisms.

Abstract: A fire enclosure for an auxiliary power unit having a hot zone formed by a gas turbine comprises an annular fire enclosure body, an axial expansion joint and a radial expansion joint. The annular fire enclosure body is configured to encapsulate the hot zone. The fire enclosure includes a first end and a second end. The axial expansion joint is connected to the first end. The radial expansion joint is connected to the second end.

Abstract: The present invention relates to a flashback protector (1) for limiting the propagation of a flame towards a fuel supply. The flashback protector comprises a downstream side (34) and an upstream side (32) defining a flow path between them. A magnetic-field generator (10, 20) is arranged to generate a magnetic field (40) across the flow path such that when a flashback occurs fluid flows in the flow path towards the fuel supply through the magnetic field (40). This causes a flow of current (50) to be induced in the fluid. This results in a force being generated on the fluid away from the fuel supply, preventing the flashback from reaching the fuel supply and causing an explosion.

Abstract: A rotary-wing aircraft includes a retractable port movable between a closed position and an open position to selectively control flow of combustion gases into a bypass passage to change a power distribution between a rotor system and a secondary propulsion system.

Abstract: The present disclosure relates to the separation of CO2 from a gas mixture. The CO2 may be removed by cooling the gas mixture such that the CO2 can be removed as a solid or liquid. In various embodiments the gas mixture from which the CO2 is removed may include exhaust gases generated as part of a combustion process, such as may be employed in a power generation process, though the gas mixture may be any gas mixture that includes CO2.

Abstract: Disclosed are a cooling device for high temperature fluid, a flight vehicle having the same and a cooling method for high temperature fluid, the cooling device including a heat exchanger configured such that fluid is introduced therein to be heat-exchanged with a refrigerant, and configured to vaporize the refrigerant by the heat exchange such that the fluid is discharged at temperature close to vaporization temperature of the refrigerant, a compressor connected to the heat exchanger and configured to compress the fluid discharged out of the heat exchanger, a turbine connected to the compressor and configured to expand the fluid compressed in the compressor to lower temperature of the compressed fluid, and a phase change heat exchanger connected to the turbine, storing a phase change material, and configured to cause heat exchange between the phase change material and the fluid discharged out of the turbine so as to control temperature of the discharged fluid, whereby a cooling device capable of minimizing in

Abstract: Certain embodiments of the invention may include systems, methods, and apparatus for monitoring corrosion or corrosive contaminants associated with liquid fuel. According to an example embodiment of the invention, a method is provided for monitoring and predicting corrosion. The method can include monitoring corrosion or corrosive contaminants associated with liquid fuel in a fuel supply system of a gas turbine, predicting, based at least in part on the monitoring, a cumulative level of corrosion of one or more components associated with a gas turbine, and outputting information associated with the monitoring.

Abstract: A combustor for a combustion turbine engine, the combustor that includes: a chamber defined by an outer wall and forming a channel between windows defined through the outer wall toward a forward end of the chamber and at least one fuel injector positioned toward an aft end of the chamber; a screen; and a standoff comprising a raised area on an outer surface of the outer wall near the periphery of the windows; wherein the screen extends over the windows and is supported by the standoff in a raised position in relation to the outer surface of the outer wall and the windows.

Abstract: A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting and an orifice. The fire enclosure encapsulates the hot zone. The drain fitting connects to the fire enclosure. The orifice extends from the combustor case into the drain fitting to form an expansion joint.

Abstract: A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting, a discharge port and a piston seal. The fire enclosure encapsulates the hot zone of the combustor case. The drain fitting connects to the fire enclosure. The discharge port extends from the combustor case into the drain fitting. The piston seal is positioned between the drain fitting and the discharge port.

Abstract: A gas turbine engine includes, in flow series, a generator section and a free power turbine. The generator section includes one or more generator turbine stages. One or more respective generator drive shafts extend axially forwardly from the generator turbine stages to one or more corresponding compressor stages. The free power turbine includes a first turbine stage and a contra-rotating second turbine stage. The gas turbine engine further includes a first drive shaft extending axially from the free power turbine to transmit rotational drive from the first turbine stage to a first propeller. The gas turbine engine further includes a second drive shaft extending from the free power turbine coaxially with the first drive shaft to transmit contra-rotational drive from the second turbine stage to a contra-rotating second propeller.

Abstract: Provided is a turbofan engine capable of effectively using the air flowing through the inner diameter side area of a fan that is disposed at the front end side. The turbofan engine in which the fan is disposed at the front end side is equipped with a first low-pressure compressor at the upstream side and on the inner diameter side of the fan. Accordingly, the first low-pressure compressor can be operated by effectively using the air flowing through the rotation center portion of the fan, so that the air can be efficiently used and the output of the engine can be increased.

Abstract: The invention relates to an aircraft nacelle comprising a cowling, an engine housed in an internal volume of the cowling and at least one thrust reverser, an air passage duct (7) being formed between the internal wall of the said cowling and an external wall of the said engine (12). According to the invention, the said cowling comprises a fixed cowling part (2) and a moving cowling part (3) capable of translational movement between a plurality of positions, at least one of the said positions varying the air flow through the said duct (7), the said moving cowling part (3) comprising the said at least one thrust reverser so that translational movement of the said moving cowling (3) also allows the said moving cowling (3) to switch from a position in which the said at least one thrust reverser is retracted into a reverse-thrust position in which the bypass flow is deflected to generate a reverse thrust.

Abstract: A high-bypass gas turbine engine includes a variable area fan nozzle with an acoustic system having an acoustic impedance.

Abstract: An exhaust system for a motor vehicle includes a housing having an inflow funnel defined by an expanding cross sectional area. Received in the housing is an exhaust-gas treatment device which includes a tubular guide element arranged in the inflow funnel and having a curvature with an outer side formed with at least one embossment. The embossment causes a deflection of the exhaust-gas flow and thereby increases a contact time of the exhaust-gas flow with an insert of the exhaust-gas treatment device.

Abstract: A vehicle includes an engine, a regenerable exhaust stream particulate filter, and a host machine. The host machine has a pair of soot models providing respective actual and modeled soot mass values for the soot contained in the particulate filter, calculates a ratio of a change in the actual and modeled soot masses, and executes a control action when the ratio exceeds a calibrated threshold. A diagnostic code and/or activation of an indicator device may be part of the control action. A system includes the particulate filter and host machine noted above. A method for use aboard the vehicle includes determining the actual and modeled soot mass values using first and second soot models, respectively, calculating a ratio of a change in the actual and modeled soot mass, comparing the ratio to a calibrated threshold, and executing a control action when the ratio exceeds the threshold.

Abstract: An exhaust gas post processing method, may include detecting driving conditions of an engine, determining a ratio of soluble organic matter and carbon particles trapped in a diesel particulate filter according to the detected driving conditions, selecting a first predetermined temperature and a first maintain time for eliminating the soluble organic matter according to the ratio of the soluble organic matter and the carbon particles, and controlling a temperature of the diesel particulate filter according thereto, and eliminating the soluble organic matter by sustaining the first predetermined temperature for the first maintain time, selecting a second predetermined temperature for eliminating the carbon particles, and controlling a temperature of the diesel particulate filter according thereto.

Abstract: An exhaust aftertreatment process including providing a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an internal combustion engine; determining that a temperature of the exhaust stream is not within an NH3 based SCR range; and providing an amount of unburned hydrocarbon (UHC) to the SCR catalyst in response to the temperature of the exhaust stream not being within an NH3 based SCR range.

Abstract: An aftertreatment system including a method which provides a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an engine; determines that an ammonia pre-load condition for the SCR catalyst is present; determines a first amount of ammonia pre-load in response to the ammonia pre-load condition; injects an amount of ammonia or urea into the exhaust stream in response to the first amount of ammonia; and adsorbs a second amount of ammonia onto the SCR catalyst in response to injecting an amount of ammonia or urea, where the second amount of ammonia is either the injected amount of ammonia or an amount of ammonia resulting from hydrolysis from the injected amount of urea.

Abstract: Systems and methods for storing NH3 that has slipped through a first SCR are described. In one example, NH3 is stored in a second SCR and released to the first SCR via desorption. The systems and method may reduce NH3 consumption and increase NH3 utilization within an exhaust system.

Abstract: A method is described for diagnosing an exhaust gas sensor which is situated in the exhaust gas area of an internal combustion engine for the purpose of detecting at least one exhaust gas component, which is heated with the aid of a sensor heater and whose temperature is detected. A device for carrying out the method is also described.

Abstract: Systems and methods are provided for a layered emission control device coupled to an exhaust manifold. Various formulations may be incorporated in a plurality of layers of the device to enable various emission control functions to be grouped within spatial constraints. The layers may be organized to reduce functional interference and improve functional synergy between the various emission control functions.

Abstract: Systems and methods for controlling regeneration of a diesel particulate filter in a vehicle engine exhaust include detecting a distance of an object from the exhaust and controlling a regeneration event if the distance is less than a threshold value. The system and method may include a particulate filter disposed in the exhaust of the vehicle and a proximity sensor disposed adjacent an exhaust opening and positioned to detect presence of an object near the opening. A controller in communication with the proximity sensor is adapted for controlling regeneration of the particulate filter in response to the proximity sensor detecting the object near the opening.

Abstract: A method of detecting failure of a substrate in a particulate filter includes comparing an absolute value of a difference between a theoretical temperature difference and an actual temperature difference between an upstream end and a downstream end of the particulate filter to a temperature differential threshold, and comparing an absolute value of a difference between a theoretical pressure difference and an actual pressure difference between the upstream end and the downstream end of the particulate filter to a pressure differential threshold. Failure of the substrate is indicated by one or both of the temperature difference and the pressure difference being greater than the temperature differential threshold and the pressure differential threshold respectively.

Abstract: A system comprises a fuel system for delivering fuel to an engine for combustion and a reductant storage system for delivering reductant to the exhaust stream for an SCR catalyst for NOx reduction. The fuel system further comprises a water separator for separating water-based fluid from fuel in the fuel tank, and a separation reservoir to collect the separated water-based fluid. Based on readings of a water-in-fuel sensor positioned within the reservoir, a type of degradation (e.g., water build-up, high-water-content fuel, mis-filling of the reductant, etc.) may be determined and indicated.

Abstract: The air-fuel ratio of exhaust gas supplied to a catalyst is alternately and actively switched between a rich state value and a lean state value. In conjunction with the performance of this active air-fuel ratio control, the oxygen storage capacity of the catalyst is measured. Whether the catalyst is normal or abnormal is determined by comparing the measured value of the oxygen storage capacity with a predetermined determination value. The temperature of the catalyst is acquired, and the determination value is set based on the acquired catalyst temperature. The determination value is set so as to decreases with increasing catalyst temperature when the catalyst temperature is equal to or higher than a predetermined temperature.

Abstract: Disclosed is an exhaust purification apparatus which comprises: a first processing unit (10) for removing particulate matter; a second processing unit (20) for mainly reducing nitrogen oxide from the exhaust that has passed through the first processing unit (10); a communication pipe (30) for guiding the exhaust from an exhaust outlet of the first processing unit (10) to an exhaust inlet of the second processing unit (20); and a reducing agent supply unit (40) for supplying a reducing agent to the exhaust. The first processing unit (10) and the second processing unit (20) are arranged in parallel to each other in such a manner that the exhaust outlet of the first processing unit (10) and the exhaust inlet of the second processing unit (20) are on the sides facing each other.

Abstract: Nitrogen oxide storage materials and methods of manufacturing nitrogen oxide storage materials are disclosed. The nitrogen oxide storage materials can be used to manufacture catalytic trap disposed in an exhaust passage of an internal combustion engine which is operated periodically between lean and stoichiometric or rich conditions, for abatement of NOx in an exhaust gas stream which is generated by the engine. In one embodiment, the nitrogen oxide storage material comprises alkaline earth material supported on ceria particles having a crystallite size of between about 10 and 20 nm and the alkaline earth oxide having a crystallite size of between about 20-40 nm.

Abstract: Disclosed is a manifold coupled to at least one cylinder of a diesel engine through at least one valve to pass or block gas flow between said manifold and said cylinder, with a specific list of restrictions imposed on said flow. Also, a manifold coupled to at least a pair of the cylinders of a multi-cylinder diesel engine through at least one valve to pass or block gas flow between said manifold and said cylinder, with the same restrictions imposed on said flow. The so formed structure is suitable to CGR.

Abstract: The rotary engine includes a circular stator, a circular rotor rotating about the stator; the rotor and the stator being separated by a circular cylinder and at least one element with two flanges. The rotor includes two compression pistons attached to the inner surface of the rotor. These two pistons are located at the two extremities of a first diameter of the rotor and kept substantially in contact with the outer surface of the stator. The stator includes a recess at each extremity of a diameter. Each recess forms a compression chamber with the compression piston positioned at the end of the recess in the direction of rotation of the rotor and one of the flanges of the element with two flanges, referred to as the cylinder head flange. The motive force is applied to the compression piston when the pressure of the gases inside the compression chamber is suddenly increased to a predefined value.

Abstract: A fluid working machine comprises a working chamber of cyclically varying volume, a high pressure manifold, and an actuated high pressure valve for regulating the flow of fluid between the working chamber and the high pressure manifold. The actuated high pressure valve comprises a moveable valve member, operable between a closed position and at least one open position. A controllable opening mechanism provides an active urging force to urge the moveable valve member from the said closed position towards at least one said open position, the volume of the working chamber varying between a maximum volume and a minimum volume. The controllable opening mechanism provides the active urging force more than once while the volume of the working chamber is intermediate the maximum of chamber volume and the minimum of chamber volume.

Abstract: A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Abstract: A device for recovering energy in working machines, with at least one power drive, which can be actuated to move a load mass back and forth, and with an energy storage system (16) which absorbs the energy released in the movement of the load mass in one direction and which makes it available for a subsequent movement in the other direction, is characterized in that there is an energy storage system in the form of an accumulator cylinder (16) which, mechanically coupled to the load mass, stores pneumatic pressure energy for movement in one direction, and, for movement in the other direction, acts as an auxiliary working cylinder which supports the power drive and which converts the stored pressure energy into driving force.

Abstract: The present disclosure provides embodiments directed towards a system for the control of hydraulic output by a hydraulic power source. In one embodiment, a system is provided. The system includes a hydraulic supply system having a drive, a hydraulic pump coupled to the drive, a first hydraulic output configured to supply a first flow of a hydraulic fluid from the hydraulic pump to a hydraulic lift, a second hydraulic output configured to supply a second flow of the hydraulic fluid from the hydraulic pump to a first hydraulic tool, and a controller configured to adjust a speed of the drive in response to a feedback indicative of a first load by the hydraulic lift, a second load by the first hydraulic tool, or a combination thereof.

Abstract: The present disclosure provides embodiments directed towards a system for the control of hydraulic output by a hydraulic power source. In one embodiment, a system is provided. The system includes a hydraulic supply system having a drive, a hydraulic pump coupled to the drive, a first hydraulic output configured to supply a first flow of a hydraulic fluid from the hydraulic pump to a hydraulic lift, a second hydraulic output configured to supply a second flow of the hydraulic fluid from the hydraulic pump to a first hydraulic tool, and a controller configured to adjust a speed of the drive in response to a feedback indicative of a first load by the hydraulic lift, a second load by the first hydraulic tool, or a combination thereof.

Abstract: The present disclosure provides embodiments directed towards a system for the control of hydraulic output by a hydraulic power source. In one embodiment, a system is provided. The system includes a hydraulic supply system having a drive, a hydraulic pump coupled to the drive, a first hydraulic output configured to supply a first flow of a hydraulic fluid from the hydraulic pump to a hydraulic lift, a second hydraulic output configured to supply a second flow of the hydraulic fluid from the hydraulic pump to a first hydraulic tool, and a controller configured to adjust a speed of the drive in response to a feedback indicative of a first load by the hydraulic lift, a second load by the first hydraulic tool, or a combination thereof.

Abstract: A hydraulic system is provided with a prime mover connected to a first fixed displacement pump having a maximum flow A, a hydraulic loop connected to a system of valves and actuators, a second fixed displacement pump having a maximum flow B in fluid communication with the loop, an electric machine operable as one of a motor and a generator connected to the second pump and electrically coupled to a battery, and a controller connected to the prime mover and the electric machine. The hydraulic loop is in fluid communication with the first pump with a first check valve. The second pump is arranged in parallel with the first pump.

Abstract: A braking system with an electric hydraulic booster includes a booster chamber, a booster piston activating chamber, a booster piston located between the booster chamber and the booster activating chamber, and a solenoid valve operably connected to a high pressure source, the booster chamber, and the booster piston activating chamber, the solenoid movable between (i) a first position whereat the booster chamber and the booster piston activating chamber are in fluid communication and fluidly isolated from the high pressure source, (ii) a second position whereat the booster chamber and the booster piston activating chamber are fluidly isolated from each other and from the high pressure source, and (iii) a third position whereat the booster piston activating chamber and the high pressure source are in fluid communication and fluidly isolated from the booster chamber.

Abstract: A hydraulic brake booster system. The hydraulic brake booster system includes a primary piston axially moveable within a bore of a cylinder, a booster chamber located rearwardly of the primary piston within the bore, an input rod extending within the booster chamber, a booster vent path in selective fluid communication with the booster chamber, and a seal member located between the forward face and the primary piston, the seal member in a fixed relationship with the input rod and configured to (i) seal the booster vent path from the booster chamber when the input rod is in a first position, and (ii) not seal the booster vent path from the booster chamber when the input rod is moved rearwardly within the booster chamber to a second position.

Abstract: A braking system includes an emulator cylinder, an emulator actuator piston within the emulator cylinder, an emulator actuator chamber within the emulator cylinder defined in part by the emulator actuator piston, a pedal feel simulator including an input port in fluid communication with the emulator actuator chamber and an output port, a selector piston movable within the emulator cylinder between a first position and a second position, and a poppet valve operably connected to the emulator actuator piston, the poppet valve movable by the emulator actuator piston between a deactivated position and an actuated position and configured such that (i) when the selector piston is in the first position and the poppet valve is in the actuated position, the poppet valve is closed and the emulator actuator chamber is not in fluid communication with the reservoir through the poppet valve, and (ii) when the selector piston is in the second position and the poppet valve is in the actuated position, the poppet valve is open

Abstract: A modular exhaust gas assembly includes a turbocharger housing having an exhaust flange and a bearing flange receptacle, and a plurality of turbine scrolls of different sizes for selective installation into the turbocharger housing in dependence on a power of an engine. Each turbine scroll has an inlet zone and is connected to the bearing flange receptacle via a selected one of a plurality of different bearing flanges and to the exhaust flange via a selected one of a plurality of different exhaust links. The inlet zone of each turbine scroll is configured to complement a contour of an outlet zone of a standard manifold so that the turbine scrolls are selectively connectable via their inlet zone to the manifold to suit the engine power at hand.

Abstract: Exhaust manifold of a turbo-supercharged reciprocating engine with any number of cylinders ranging from 2 to 6 and equipped with an EGR system which comprises: a) an outer casing (21) which includes flanges (23, 25) for effecting joining, respectively, to the cylinder head (13) of the engine and the turbine (15) and an opening towards an EGR outlet duct (27) and an inner wall (31) with low thermal inertia defining a regulating chamber (33) for the exhaust gases introduced into it, after passing through a particle filter (45), via a plurality of orifices (35) located in the inner wall (31); b) inner branches (41) for entry of the exhaust gases, situated opposite the exhaust pipes (17); c) an outlet duct (59) for conveying the exhaust gases to the turbine (15), designed as an extension of the inner wall (31).

Abstract: The present invention relates to a turbocharger (1) for an internal combustion engine (2) having at least one exhaust-gas recirculation line (3) which enters via an exhaust-gas mixing-in opening (12) into an intake line (10) of the internal combustion engine (2); having a turbine (4); and having a compressor (5); which is drive-connected to the turbine (4) and which has a compressor wheel (6) which is arranged in a compressor housing (7) into which the intake line (10) opens via a compressor inlet (11), having a mixing device (18) for mixing recirculated exhaust gas and fresh air, with the mixing device (18) having at least two guide plates (21, 22) in the shape of truncated cone shell segments which are arranged radially offset with respect to one another and which delimit in each case one inflow gap (23, 24) at their longitudinal edges arranged offset with respect to one another.