METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION SYSTEM

The invention relates to an arrangement for controlling an exhaust gas flow through an exhaust gas recirculation system for an internal combustion engine having a turbocharger. The exhaust gas recirculation system has an exhaust gas cooler and a bypass which is capable of diverting at least a portion of exhaust gas flow from the cooler, the exhaust gas cooler and the bypass each being assigned a separate valve for enabling and disabling the flow of the exhaust gas. At full load of the internal combustion engine, the valves are closed together and/or at the same time. The valves are arranged at the upstream side of the exhaust gas recirculation system. When the two valves are closed, the exhaust gas recirculation system is decoupled from.

METHODS AND SYSTEMS FOR AN ENGINE START USING AN ELECTRICALLY DRIVABLE COMPRESSOR

Methods and systems are provided for expediting turbine spool up during an engine restart following an engine stop while a vehicle is in motion. In one example, a method includes, in response to engine restart conditions being met, operating an electrically driven compressor to supply compressed air to a turbocharger turbine for expedited turbine spool up during engine cranking. 1. A system for a supercharged internal combustion engine , comprising:an engine coupled to a crankshaft;an intake system including an intake passage for supply of charge air to one or more engine cylinders of the engine;an exhaust-gas discharge system for discharge of exhaust gas;at least one exhaust-gas turbocharger comprising a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system;an electrically driveable compressor arranged in the intake system downstream of the compressor;a bypass line coupled to the intake system for bypassing the electrically driveable compressor, the bypass line forming each of a first junction point with the intake passage, between the electrically driveable compressor and the compressor of the at least one exhaust-gas turbocharger, and a second junction point with the intake passage, downstream of the electrically driveable compressor, a first shut-off element provided in the bypass line;a line coupling the intake system and the exhaust-gas discharge system, the line forming each of a third junction point with the intake passage, downstream of the electrically driveable compressor, and a fourth junction point with the intake passage, upstream of the turbine of the at least one exhaust-gas turbocharger, a second shut-off element provided in the line,a starting device configured to rotate the crankshaft during a starting process; and during a fired operating mode in which fuel is injected and ignition is initiated,', 'in response to a lower than threshold load demand, transition the internal combustion engine to a non- ...

DIRECT-INJECTION INTERNAL COMBUSTION ENGINE WITH INJECTION NOZZLE

A direct-injection internal combustion engine is provided. The engine comprises at least one cylinder in which a combustion chamber is jointly formed by a piston crown of a piston and by a cylinder head, each cylinder having an inlet opening for the supply of fresh air, and an injection nozzle which is arranged in the cylinder head on the opposite side of the piston crown, on which injection nozzle, at a free end projecting into the combustion chamber, are provided a plurality of nozzle holes for the direct injection of the fuel, the injection nozzle being arranged eccentrically, spaced apart from a longitudinal axis of the cylinder and inclined at an angle to the longitudinal axis of the cylinder, at least two of the plurality of nozzle holes including opening cross-sections of different size. In this way, an equal fuel distribution in the cylinder may be provided.

EXHAUST-GAS AFTERTREATMENT ARRANGEMENT

Methods and systems are provided for a resonator of an exhaust system. In one example, the resonator is a quarter wave resonator with a diaphragm configured to provide pulsations during low-end engine torque conditions.

SYSTEMS AND METHODS FOR A SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST GAS RECIRCULATION

Methods and systems are provided for a supercharged internal combustion engine having staged boosting devices. In one example, a system may include an engine coupled to an intake system for receiving charge air and an exhaust system for discharging exhaust gases, an electrically driven compressor arranged in the intake system upstream of a turbocharger compressor, a bypass line, including a bypass valve, coupled across the electrically driven compressor, a throttle arranged at an inlet of the electrically driven compressor, and an exhaust gas recirculation system that couples the exhaust system downstream of the exhaust turbine to the intake system upstream of the electrically driven compressor via a first recirculation branch and between the electrically driven compressor and the turbocharger compressor via a second recirculation branch. In this way, the electrically driven compressor may be operated to reduce condensate formation at an inlet of the turbocharger compressor. 1. A supercharged internal combustion engine , comprising:an intake system for the supply of charge air;an exhaust gas discharge system for the discharge of exhaust gas;a turbocharger, including a turbine arranged in the exhaust gas discharge system and a compressor arranged in the intake system;an electrically drivable compressor arranged in the intake system upstream of the compressor of the turbocharger;a compressor-specific throttle element is arranged upstream of the electrically drivable compressor;a bypass line for bypassing said electrically drivable compressor that branches off from the intake system upstream of the electrically drivable compressor, forming a third junction, and opens into the intake system between the electrically drivable compressor and the compressor of the turbocharger, forming a fourth junction;a shut-off element arranged in the bypass line; andan exhaust gas recirculation system, comprising a recirculation line which branches off from the exhaust gas discharge ...

REGULATING DEVICE FOR AN INTERNAL COMBUSTION ENGINE

A regulating device for an internal combustion engine includes a housing in which is formed an exhaust gas recirculation pipe which opens into an intake pipe, and a regulating element eccentrically mounted on a shaft. The regulating element includes a first surface, a second surface, and guide ribs arranged on the second surface so that an exhaust gas flow flows into the intake pipe when the exhaust gas recirculation pipe is opened. In a first end position of the regulating element, where the intake pipe is at throttled upstream of an opening of the exhaust gas recirculation pipe, a normal vector of the first surface points to an upstream side of the intake pipe. In a second end position of the regulating element, where the exhaust gas recirculation pipe is closed, a normal vector of the second surface points to the exhaust gas recirculation pipe. 113-. (canceled)14. A regulating device for an internal combustion engine , the regulating device comprising:an intake pipe;an exhaust gas recirculation pipe configured to open into the intake pipe;a housing configured to have the intake pipe and the exhaust gas recirculation pipe be formed therein;a shaft configured to act as an axis of rotation, the shaft being arranged perpendicular to a center line of the intake pipe and to a center line of the exhaust gas recirculation pipe; anda regulating element eccentrically mounted on the shaft, the regulating element comprising a first surface, a second surface, and guide ribs arranged on the second surface,wherein,in a first end position of the regulating element, in which the intake pipe is at least throttled upstream of an opening of the exhaust gas recirculation pipe, a normal vector of the first surface points to an upstream side of the intake pipe,in a second end position of the regulating element, in which the exhaust gas recirculation pipe is closed, a normal vector of the second surface points to the exhaust gas recirculation pipe, andthe guide ribs are arranged on the ...

REGULATING DEVICE FOR AN INTERNAL COMBUSTION ENGINE

A regulating device for an internal combustion engine includes an exhaust gas recirculation pipe which opens into an intake pipe which are both formed in a housing, and a regulating element eccentrically mounted on a shaft. The shaft is arranged perpendicular to a center line of the intake pipe and the exhaust gas recirculation pipe. The regulating element includes a first surface, a second surface, and guide ribs arranged on the first surface. In a first end position of the regulating element, in which the intake pipe is at least throttled upstream of an opening of the exhaust gas recirculation pipe, a normal vector of the first surface points to an upstream side of the intake pipe. In a second end position of the regulating element, in which the exhaust gas recirculation pipe is closed, a normal vector of the second surface points to the exhaust gas recirculation pipe. 113-. (canceled)14. A regulating device for an internal combustion engine , the regulating device comprising:an intake pipe;an exhaust gas recirculation pipe configured to open into the intake pipe;a housing configured to have the intake pipe and the exhaust gas recirculation pipe be formed therein;a shaft configured to act as an axis of rotation, the shaft being arranged perpendicular to a center line of the intake pipe and to a center line of exhaust gas recirculation pipe; anda regulating element eccentrically mounted on the shaft, the regulating element comprising a first surface, a second surface, and guide ribs arranged on the first surface,wherein,in a first end position of the regulating element, in which the intake pipe is at least throttled upstream of an opening of the exhaust gas recirculation pipe, a normal vector of the first surface points to an upstream side of the intake pipe, andin a second end position of the regulating element, in which the exhaust gas recirculation pipe is closed, a normal vector of the second surface points to the exhaust gas recirculation pipe.15. The ...

METHODS AND SYSTEMS FOR A TWO-STAGE TURBOCHARGER

The disclosure relates to a supercharged, direct-injection internal combustion engine having an intake system for the supply of charge air and having an exhaust-gas discharge system for the discharge of exhaust gas and having at least two series-connected exhaust-gas turbochargers which each comprise a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system and of which a first exhaust-gas turbocharger serves as a low-pressure stage and a second exhaust-gas turbocharger serves as a high-pressure stage, a first bypass line being provided which branches off from the exhaust-gas discharge system between the first turbine and the second turbine so as to form a first junction point. 1. A supercharged , direct-injection internal combustion engine having an intake system for the supply of charge air and having an exhaust-gas discharge system for the discharge of exhaust gas and having at least two series-connected exhaust-gas turbochargers which each comprise a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system and of which a first exhaust-gas turbocharger serves as a low-pressure stage and a second exhaust-gas turbocharger serves as a high-pressure stage , the second turbine , which comprises a second turbine housing , of the second exhaust-gas turbocharger being arranged upstream of the first turbine , which comprises a first turbine housing , of the first exhaust-gas turbocharger , and the second compressor of the second exhaust-gas turbocharger being arranged downstream of the first compressor of the first exhaust-gas turbocharger;a first bypass line being provided which branches off from the exhaust-gas discharge system between the first turbine and the second turbine so as to form a first junction point;a valve being arranged in the exhaust-gas discharge system at the first junction point;a second bypass line being provided which branches off from the exhaust-gas discharge ...

METHODS AND SYSTEM FOR STARTING AN ENGINE

A description is given of a device () for pressure-charging a combustion engine (), which comprises a compressor (), a charge air cooler (), an inlet () and a charger (), which are connected to one another in terms of flow by flow ducts (). In this device, the charge air cooler () is arranged downstream of the compressor (), and the inlet () is arranged downstream of the compressor () and of the charge air cooler () in the flow direction (). 1. A device for pressure-charging a combustion engine , which comprises:at least one compressor, at least one charge air cooler, at least one inlet, and a charger, which are connected to one another in terms of flow by flow ducts, wherein the charge air cooler is arranged downstream of the at least one compressor, and the inlet is arranged downstream of the at least one compressor and of the charge air cooler in the flow direction, and the charger is connected to the inlet via a bypass flow duct arranged between the at least one compressor and the inlet, wherein the charger is arranged lower than the inlet in the vertical direction, and a moisture sensor is arranged in the bypass flow duct upstream of the charger.2. The device of claim 1 , wherein the device comprises a controller and the moisture sensor is functionally connected to the charger via the controller claim 1 , wherein the controller is designed to operate the charger when a quantity of condensate claim 1 , measured by means of the moisture sensor claim 1 , in the bypass flow duct exceeds a first threshold.3. The device of claim 2 , wherein the controller is designed to operate the charger for a fixed time period or until the quantity of condensate falls below a second threshold.4. The device of claim 3 , wherein at least one valve is arranged in a flow duct arranged between the charge air cooler and the inlet and/or is arranged in a flow duct arranged between the charge air cooler and the charger.5. The device of claim 4 , where the compressor is a turbocharger ...

SYSTEM AND METHOD FOR VARIABLE TONGUE SPACING IN A MULTI-CHANNEL TURBINE IN A CHARGED INTERNAL COMBUSTION ENGINE

An internal combustion engine comprising a dual flow turbocharger includes an annular support with at least one tongue-like end wherein the annular support is adjustable in a translational fashion along the turbines axis of rotation. Moving the annular support influences the degree of separation behavior of turbine channels by varying a tongue spacing to the rotor. 2. The charged internal combustion engine as claimed in claim 1 , wherein the support is adjustable in two-stage fashion and is situated either in the first working position or in the rest position.3. The charged internal combustion engine as claimed in claim 1 , wherein the support is adjustable in continuously variable fashion between the first working position and the rest position.4. The charged internal combustion engine as claimed in claim 1 , wherein the at least one tongue-like element is formed integrally with the support claim 1 , and the support and the at least one tongue-like element form a monolithic component.5. The charged internal combustion engine as claimed in claim 1 , wherein the support and the at least one tongue-like element constitute separate components that are connected to one another.6. The charged internal combustion engine as claimed in claim 1 , wherein the multi-channel segmented turbine is a dual-flow turbine with two channels claim 1 , wherein the two channels are open toward the at least one rotor in each case along a circular-arc-shaped segment of 180°.7. The charged internal combustion engine as claimed in claim 6 , wherein the support has two tongue-like elements which claim 6 , when the support is in the first working position claim 6 , each lengthen the free tongue-like end of one of a total of two housing walls that separate the two adjacent channels from one another.8. The charged internal combustion engine as claimed in claim 6 , wherein the support has one tongue-like element which claim 6 , when the support is in the first working position claim 6 , lengthens ...

TURBOCHARGER ARRANGEMENT HAVING COMPRESSOR WHEELS ARRANGED IN PARALLEL AND A METHOD FOR OPERATING A TURBOCHARGER ARRANGEMENT

Methods and systems are provided for a turbocharger of an engine. In one example, a method may include balancing a pressure differential between compressor wheels of the turbocharger. 1. A turbocharger arrangement comprising:an internal combustion engine, having at least two compressor wheels, which run on a common drive axle and discharge air in parallel into a common outlet duct, wherein an inlet duct routed separately in at least one section ahead of the turbocharger arrangement is provided for each compressor wheel, 'a flow connecting duct between the inlet ducts is provided close to the compressor wheels.', 'wherein'}2. The turbocharger arrangement of claim 1 , wherein the flow connecting duct opens into the respective inlet ducts in adjacent to the compressor wheels.3. The turbocharger arrangement of claim 1 , wherein the flow connecting duct is implemented by means of at least one opening claim 1 , which is introduced into housing parts separating the inlet ducts from one another.4. The turbocharger arrangement of claim 1 , wherein two compressor wheels are provided claim 1 , which are arranged back-to-back claim 1 , wherein both compressor wheels have substantially similar delivery characteristics.5. The turbocharger arrangement of claim 4 , wherein the flow duct between the inlet ducts is routed around an outlet duct extending toroidally around the compressor wheels.6. The turbocharger arrangement of claim 5 , wherein a crankcase breather duct of the internal combustion engine additionally opens into the flow duct connecting the inlet ducts claim 5 , with the result that air is discharged from the crankcase into the inlet ducts ahead of the turbocharger arrangement.720. The turbocharger arrangement of claim 1 , wherein the flow duct connecting the inlet ducts has a cross-sectional area of no more than % of the average cross-sectional area of the inlet ducts.8. The turbocharger arrangement of claim 1 , wherein the flow connection opens into the respective ...

INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGING ARRANGEMENT

Systems and methods for operating an engine that includes a cavity in an exhaust manifold of a turbocharged engine are described. The systems and methods may improve engine efficiency and provide a way of controlling temperatures of engine exhaust components. The cavity may be located between an exterior wall of the exhaust manifold and an interior wall of the exhaust manifold. 1. A supercharged internal combustion engine having at least two cylinders , having an intake system for the supply of charge air , and having an exhaust-gas discharge system for the discharge of exhaust gas , and having at least one exhaust-gas turbocharger which comprises a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system , in which each cylinder has at least one outlet opening for the discharge of the exhaust gases via the exhaust-gas discharge system , and each outlet opening is adjoined by an exhaust line , the exhaust lines of at least two cylinders merging to form an overall exhaust line , thus forming an exhaust manifold , and the turbine , which comprises a turbine housing , of the at least one exhaust-gas turbocharger is a wastegate turbine , wherein the exhaust-gas discharge system is equipped at least in regions with at least one cavity which can be used as thermal insulation , the at least one cavity forming a bypass which is at least connectable to the exhaust-gas discharge system upstream and downstream of the wastegate turbine and which is equipped with at least one shut-off element.2. The supercharged internal combustion engine of claim 1 , wherein the bypass is connectable claim 1 , upstream of the wastegate turbine in the region of the exhaust manifold claim 1 , via at least one inlet opening to the exhaust-gas discharge system claim 1 , each inlet opening being equipped with a shut-off element.3. The supercharged internal combustion engine of claim 2 , wherein the bypass is connectable claim 2 , upstream of the wastegate ...

SUPERCHARGER WITH EXHAUST GAS RECIRCULATION

An engine, methods and systems are provided for supercharging charge air for internal combustion engines. The engine having an intake, and a blower with at least one impeller in the intake mounted on a rotatable shaft. An EGR line opens into the intake system upstream of the at least one impeller to form a junction point. A flap, pivotable about an axis running transversely with respect to the intake air flow, has: a first position which blocks the intake by way of a front side, and which opens up the EGR line; and a second position to cover the EGR line and open intake system wherein the flap is not planar, and has, at least on the front side thereof, at least one deformation as an unevenness. 1. A supercharged internal combustion engine havingan intake system for the supply of a charge-air flow;an exhaust-gas discharge system for the discharge of exhaust gas;at least one blower arranged in the intake system, which blower is equipped with at least one impeller which is mounted, in a housing, on a rotatable shaft;an exhaust-gas recirculation arrangement comprising a recirculation line which branches off from the exhaust-gas discharge system and which opens into the intake system upstream of the at least one impeller so as to form a junction point, the recirculation line branching off upstream of a turbine arranged in the exhaust-gas discharge system; anda flap which is delimited circumferentially by an edge and which is arranged in the intake system at the junction point and which is pivotable about an axis running transversely with respect to the fresh-air flow, in such a way that the flap, in a first end position, by way of a front side, blocks the intake system and opens up the recirculation line, and in a second end position, by way of a rear side, covers the recirculation line and opens up the intake system, [{'b': '3', 'the flap () is not planar, and'}, {'b': 3', '4, 'has, at least on the front side (′), at least one deformation () as an unevenness.'}], ' ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH MIXED-FLOW TURBINE

The disclosure relates to a supercharged internal combustion with a mixed flow turbine. In one example, a system comprises a mixed-flow turbine having a turbine shaft coupled to a compressor, a plurality of guide vanes arranged in an inlet of the mixed-flow turbine, a plurality of bevel wheels each coupled to a respective guide vane via a respective guide vane shaft, a pinion wheel with a plurality of teeth to mesh with the plurality of bevel wheels, and a pinion drive coupled to one of the bevel wheels. 1. A supercharged internal combustion engine , comprising:an intake system for the supply of charge air;an exhaust-gas discharge system for the discharge of the exhaust gas; and a turbine housing having an inlet region;', 'at least one impeller arranged in the turbine housing and mounted on a rotatable turbine shaft;', 'an adjustable guide device arranged in the inlet region upstream of the at least one impeller, the adjustable guide device comprising one or more guide vanes, each guide vane arranged on a guide vane-specific shaft;', 'an adjustment device configured to rotate the one or more guide vanes, the adjustment device having a rotatable adjustment ring which is mounted coaxially with respect to the turbine shaft of the mixed-flow turbine, the rotatable adjustment ring having an external toothing; and', 'one or more gearwheels each arranged on a respective guide vane-specific shaft, each gearwheel configured to mesh with the external toothing of the adjustment ring, such that the one or more guide vanes are adjusted by rotation of the adjustment ring., 'at least one mixed-flow turbine which is arranged in the exhaust-gas discharge system, the mixed-flow turbine comprising2. The supercharged internal combustion engine as claimed in claim 1 , wherein each gearwheel is arranged on an outer circumference of the adjustment ring.3. The supercharged internal combustion engine as claimed in claim 1 , wherein the at least one mixed-flow turbine arranged in the exhaust ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGER AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Embodiments for inducing swirl upstream of a compressor are provided. In one example, a method includes during a first condition, flowing exhaust gas from downstream of a turbine to upstream of a compressor via a tangential flow duct of an exhaust gas recirculation (EGR) injector circumferentially surrounding an intake passage upstream of the compressor, and during a second condition, flowing exhaust gas from downstream of the turbine to upstream of the compressor via a radial flow duct of the EGR injector. 1. A supercharged internal combustion engine havingan intake system for supply of charge air,an exhaust-gas discharge system for discharge of exhaust gas,at least one exhaust-gas turbocharger which comprises a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system, the compressor being equipped with at least one impeller which is mounted on a rotatable shaft in a compressor housing,an exhaust-gas recirculation arrangement comprising a recirculation line system which branches off from the exhaust-gas discharge system downstream of the turbine of the at least one exhaust-gas turbocharger and which opens out into the intake system upstream of the at least one compressor impeller, andan additional exhaust-gas recirculation arrangement which comprises a line which branches off from the exhaust-gas discharge system upstream of the turbine and which opens out into the intake system again downstream of the compressor,wherein the recirculation line system comprises at least two annular ducts which surround the intake system in spiral form at least in sections upstream of the at least one compressor impeller, with multiple ducts extending from each annular duct, said ducts each being connected in terms of flow at an intake side, by way of an inlet opening, to the intake system,a first annular duct of the at least two annular ducts has ducts which, at least at the intake side, are oriented substantially radially with respect to ...

Supercharged internal combustion engine with compressor, exhaust-gas recirculation arrangement and flap

Methods and systems are provided for an at least partially insulated throttle valve. In one example, a system may include a throttle valve having a first side configured to contact intake air flow and a second side configure to contact exhaust gas recirculate flow, where at least a portion of the second side comprises thermally insulating materials.

INTERNAL COMBUSTION ENGINE WITH COMPRESSOR, EXHAUST-GAS RECIRCULATION ARRANGEMENT AND PIVOTABLE FLAP

Methods and system are provided for a flap valve having a sealing element. In one example, a system include a front side of the flap valve having a first sealing element and a back side of the flap valve having a second sealing element, where the first sealing element and the second sealing element are located along a circumferential edge of the flap valve and spaced away from its geometric center. 1. A supercharged internal combustion engine having:an intake system for the supply of a charge-air flow;an exhaust-gas discharge system for the discharge of exhaust gas;at least one compressor arranged in the intake system, which compressor is equipped with at least one impeller which is mounted, in a housing, on a rotatable shaft;an exhaust-gas recirculation arrangement comprising a recirculation line which branches off from the exhaust-gas discharge system and which opens into the intake system, so as to form a junction point, upstream of the at least one impeller; anda valve unit which is arranged at the junction point in the intake system and which comprises a valve housing and a flap arranged in the valve housing, the flap, which is delimited circumferentially by an edge, being pivotable about an axis running transversely with respect to the fresh-air flow, in such a way that the flap, in a first end position, blocks the intake system by means of a front side and opens up the recirculation line and, in a second end position, covers the recirculation line by means of an exhaust-gas-side back side and opens up the intake system, wherein the front side of the flap, in the first end position, interacts with a stop in the intake system, which stop is arranged upstream of the flap, in order to block the intake system, the flap being equipped, at least on the front side, with at least one sealing element which, in the first end position of the flap, presses against the stop for the purposes of sealing off the intake system.2. The supercharged internal combustion engine of ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGERS ARRANGED IN SERIES AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A supercharged internal combustion engine, comprising a high-pressure turbine connected to a channel of a low-pressure turbine and a bypass line, branching from upstream the high-pressure turbine, connectable to the channels of the low-pressure turbine via a control element positioned within the bypass line, is provided. Adjusting the control element fluidly connects each of the channels of the low-pressure turbine to the bypass line responsive to the exhaust-gas flow rate to optimize the performance of the engine. 2. The supercharged internal combustion engine as claimed in claim 1 , wherein the control element is a pivotable flap.3. The supercharged internal combustion engine as claimed in claim 1 , wherein the control element is continuously adjustable.4. The supercharged internal combustion engine as claimed in claim 1 , wherein the control element is continuously adjustable at least in the first working position.5. The supercharged internal combustion engine as claimed in claim 1 , wherein the first compressor is designed to be larger than the second compressor.6. The supercharged internal combustion engine as claimed in claim 1 , wherein the first turbine is designed to be larger than the second turbine.7. The supercharged internal combustion engine as claimed claim 1 , wherein the two-channel turbine is a dual-flow turbine in which the two channels are arranged one on top of the other as viewed in a section perpendicular to the rotary axle of the at least one rotor and claim 1 , at least along an arc-shaped segment claim 1 , enclose the at least one rotor in spiral form at different radii.8. The supercharged internal combustion engine as claimed in claim 1 , wherein the two-channel turbine is a twin-flow turbine in which the two channels are arranged adjacent to one another and claim 1 , at least along an arc-shaped segment claim 1 , enclose the at least one rotor in spiral form at equal radii.9. The supercharged internal combustion engine as claimed in claim ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH TURBINE WHICH CAN BE LIQUID-COOLED, AND METHOD FOR CONTROLLING THE COOLING OF SAID TURBINE

A method for operating an engine system in an internal combustion engine comprising during a first operating condition, circulating coolant through a coolant jacket in a turbine housing at least partially enclosing a turbine rotor and during a second operating condition, replacing coolant in the coolant jacket with air from a venting reservoir. 1. A supercharged internal combustion engine comprising:a cylinder head with two cylinders;a liquid-type cooling arrangement for the cylinder head; each cylinder has at least one outlet opening for discharging the exhaust gases out of the cylinder and each outlet opening is adjoined by an exhaust line, the exhaust lines merging to form at least one overall exhaust line such that at least one exhaust manifold is formed, which overall exhaust line opens into the at least one turbine, which has a turbine housing and which has a flow duct which conducts exhaust gas through the turbine housing; and', wherein the at least one coolant jacket is connectable to the liquid-type cooling arrangement;', 'the at least one coolant jacket is arranged in a secondary circuit, which is separate from the liquid-type cooling arrangement and comprises a venting reservoir which can be filled with air and coolant and which is connectable via a vent line, which conducts air and is closable by a first shut-off element, to the at least one coolant jacket of the turbine housing via a first port;', 'a pump is provided in a coolant-conducting return line, which can be shut off and which connects the at least one coolant jacket of the turbine housing to the venting reservoir via a second port; and', 'a coolant-conducting bypass line, which can be shut off, for bypassing the pump is provided, which connects the venting reservoir to the at least one coolant jacket of the turbine housing via the second port., 'the at least one turbine has at least one coolant jacket, which is integrated in the housing, in order to form a cooling arrangement;'}], 'a turbine in ...

INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS RECIRCULATION ARRANGEMENT AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A method for operating an internal combustion engine is provided. The method includes closing an EGR valve positioned in an exhaust gas recirculation (EGR) conduit downstream of an EGR cooler, the EGR conduit coupled to an intake system and an exhaust system and determining a profile of exhaust pressure waves in the exhaust system. The method also includes adjusting a volume of variable volume vessel based on the profile of the exhaust pressure waves, the variable volume vessel positioned downstream of the EGR cooler and upstream of the EGR valve. 1. An internal combustion engine comprising:at least one cylinder;an intake system for supplying charge air to the at least one cylinder;an exhaust-gas discharge system for discharging exhaust gases; andan exhaust-gas recirculation arrangement which comprises a recirculation line which branches off from the exhaust-gas discharge system so as to form a first junction point and opens into the intake system so as to form a second junction point, a cooler being provided in the recirculation line, the cooler having a coolant jacket which conducts coolant and which serves for the transfer of heat between exhaust gas and coolant, and a shut-off element being arranged in the recirculation line downstream of the cooler;where a volume provided for exhaust gas between the first junction point and the shut-off element of the exhaust-gas recirculation arrangement is variable, said volume being of coherent form and being open toward the exhaust-gas discharge system.2. The internal combustion engine of claim 1 , where the volume provided for exhaust gas between the first junction point and the shut-off element of the exhaust-gas recirculation arrangement comprises at least one vessel which is connected to the recirculation line.3. The internal combustion engine of claim 2 , where the at least one vessel is of variable volume.4. The internal combustion engine of claim 1 , further comprising at least one compressor which can be driven by ...

Internal combustion engine with exhaust-gas turbocharging and exhaust-gas recirculation

Methods and systems are provided for a compressor bypass passage. In one example, a method may include flowing bypassed charge air through an annular passage into an intake passage.

METHODS AND SYSTEMS FOR A MIXING CHAMBER

Methods and systems are provided for a mixing chamber in a turbine. In one example, a system comprises a mixing chamber integrally formed within a turbine with an injector positioned to inject reductant directly into the mixing chamber. 1. An internal combustion engine with an exhaust gas discharge system for discharging exhaust gas from at least one cylinder , the internal combustion engine , comprising:at least one exhaust gas aftertreatment system is arranged in the exhaust gas discharge system;a device is positioned to inject a reducing agent into a mixing chamber upstream of the at least one exhaust gas aftertreatment system; anda turbine is arranged in the exhaust gas discharge system upstream of the at least one exhaust gas aftertreatment system, wherein a turbine casing contains at least one impeller mounted on a rotatable shaft, wherein an inlet region is upstream of and supplies exhaust gas to the at least one impeller and an outlet region is downstream of discharges exhaust gas from the at least one impeller, and at least one flow channel fluidly couples the inlet region to the outlet region via the impeller, wherein the mixing chamber is fluidly coupled to the at least one flow channel at a portion of the turbine upstream of the outlet region and downstream of the at least one impeller via at least one exhaust gas supply line.2. The internal combustion engine of claim 1 , wherein a plurality of metering lines fluidly couple the mixing chamber to the outlet region.3. The internal combustion engine of claim 2 , wherein the plurality of metering lines are fluidly coupled to different radial locations of the outlet region.4. The internal combustion engine of claim 1 , wherein the at least one mixing chamber comprises a ring shape which at least in portions surrounds the exhaust gas discharge system downstream of the at least one impeller.5. The internal combustion engine of claim 1 , wherein the device is a reductant injector claim 1 , and wherein the ...

CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE

A control device for an internal combustion engine includes an intake channel with an inlet and an outlet, a control element, an exhaust gas recirculation channel with an opening, a recirculation channel, and a shaft having the control element eccentrically mounted thereon. The exhaust gas recirculation channel enters the intake channel. The opening of the exhaust gas recirculation channel is a valve seat for the control element. The shaft acts as an axis of rotation for the control element. A rotation of the shaft moves the control element between a first end position where the control element throttles the intake channel and a second end position where the control element contacts the valve seat at the opening of the exhaust gas recirculation channel. The axis of rotation is arranged in a plane which passes through the valve seat at the opening of the exhaust gas recirculation channel. 114-. (canceled)15. A control device for an internal combustion engine , the control device comprising:an intake channel comprising an inlet and an outlet;a control element;an exhaust gas recirculation channel comprising an opening, the exhaust gas recirculation channel being configured to enter into the intake channel, the opening of the exhaust gas recirculation channel being configured as a fixed valve seat for the control element in a closing state of the exhaust gas;a recirculation channel; anda shaft on which the control element is eccentrically mounted, the shaft being configured to act as an axis of rotation for the control element;wherein,a rotation of the shaft moves the control element between a first end position in which the control element at least throttles the intake channel and a second end position in which the control element contacts the fixed valve seat at the opening of the exhaust gas recirculation channel, andthe axis of rotation is arranged in a plane which passes through the fixed valve seat at the opening of the exhaust gas recirculation channel.16. The ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH TWO-CHANNEL TURBINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A supercharged internal combustion engine comprising a two channel turbine fluidly connects the two channels within the turbine housing by virtue of at least one opening in the housing wall which separates the two channels wherein at least one displaceable wall part is provided which serves for opening up the opening in the housing wall to optimize the performance of the turbine responsive to the exhaust gas flow rate. 1. A supercharged internal combustion engine comprising at least one cylinder head with at least two cylinders , in which each cylinder has at least one outlet opening for discharging the exhaust gases out of the cylinder , and each outlet opening is adjoined by an exhaust line;at least two cylinders are configured in such a way as to form two groups with in each case at least one cylinder;the exhaust lines of the cylinders of each cylinder group merge in each case to form an overall exhaust line such that an exhaust manifold is formed;the two overall exhaust lines are connected to a two-channel turbine, which comprises a rotor which is mounted on a rotatable shaft in a turbine housing, such that in each case one overall exhaust line is connected to one of the two inlet openings of the turbine, wherein each inlet opening is adjoined by one channel of the turbine and the two channels are separated from one another as far as the rotor by means of a housing wall, such that the exhaust-gas streams of the two channels are conducted separate from one another to the rotor; whereinthe two channels of the turbine can be connected to one another within the turbine housing by virtue of at least one opening in the housing wall upstream of the rotor and downstream of the inlet openings being opened up.2. The supercharged internal combustion engine as claimed in claim 1 , wherein the two-channel turbine is a dual-flow turbine in which the two channels are arranged one on top of the other as viewed in a section perpendicular to the axis of rotation of the rotor and ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH TWO-CHANNEL TURBINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A supercharged internal combustion engine wherein a two-channel turbine comprising a shut-off body positioned within a flow transfer duct within a turbine housing fluidly couples the two channels of a turbine housing to one another via the transfer duct responsive to the exhaust gas flow rate to enable better operation of the turbocharger. 1. A supercharged internal combustion engine comprising:at least one cylinder head with at least two cylinders, in which each cylinder has at least one outlet opening for discharging the exhaust gases out of the cylinder via an exhaust-gas discharge system, and each outlet opening is adjoined by an exhaust line;at least two cylinders are configured in such a way as to form two groups with in each case at least one cylinder, the exhaust lines of the cylinders of each cylinder group merge in each case to form an overall exhaust line such that an exhaust manifold is formed; whereinthe two overall exhaust lines are connected to a two-channel turbine, which comprises a rotor which is mounted on a rotatable shaft in a turbine housing, such that in each case one overall exhaust line is connected to one of two inlet openings of the turbine;wherein each inlet opening is adjoined by one channel of the turbine and the two channels are separated from one another as far as the rotor by means of a housing wall, such that the exhaust-gas streams of the two channels are conducted separate from one another to the rotor;wherein the two channels of the turbine can be connected to one another within the turbine housing by virtue of at least one flow transfer duct upstream of the rotor and downstream of the inlet openings being opened up, for which purpose a shut-off device is provided which has at least one adjustable shut-off body;wherein the at least one shut-off body, in a rest position, separates the two channels of the turbine from one another, in a first working position, connects the two channels of the turbine to one another by opening up the ...

CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE

A control device for an internal combustion engine includes an intake channel, an exhaust gas recirculation channel which enters into the intake channel, a control element, a mixing housing which forms the intake channel, a connection element, a compressor, and a shaft. The mixing housing has a mouth of the exhaust gas recirculation channel in a lower area, an outlet, a mixing housing section, and a bowl-shaped recess. The cross-sectional extension is formed via the mixing housing to provide an axial stop face. The connection element abuts against the axial stop face and is radially limited by an axially opposite inner wall surface on the stop face. The mixing housing section has a recess arranged at the lowest point of the mixing housing section and below the axially opposite inner wall surface. The recess enters into the bowl-shaped recess of the mixing housing. 113-. (canceled)14. A control device for an internal combustion engine , the control device comprising:an intake channel comprising an all around cross-sectional extension in a downstream area;an exhaust gas recirculation channel which enters into the intake channel;a control element;a mixing housing in which the intake channel is formed, the mixing housing comprising a mouth of the exhaust gas recirculation channel in a lower area in relation to the ground surface, an outlet, a mixing housing section, and a bowl-shaped recess, the all around cross-sectional extension being formed via the mixing housing so as to provide an axial stop face;a connection element which is configured to abut against the axial stop face, the connection element being radially limited by an axially opposite inner wall surface on the stop face;a downstream compressor comprising a connection nozzle which is configured to limit the inlet channel so that the inlet channel, limited by the connection nozzle, is in a fluid communication with the outlet of the mixing housing;a shaft which serves as a rotation axis on which the control ...

METHODS AND SYSTEMS FOR AN EXHAUST SYSTEM

Methods and systems are provided for an exhaust gas system. In one example, a system comprises a conical passage fluidly coupling a turbine outlet to an aftertreatment device. The conical passage may further comprise a scavenge valve to adjust exhaust gas flow therethrough. 1. A system , comprising:an exhaust gas inlet region comprising a conical shape arranged between a turbine and at least one aftertreatment device, and wherein a diameter of the exhaust gas inlet region increases in a direction of exhaust gas flow.2. The system of claim 1 , wherein a scavenging valve is arranged in the exhaust gas inlet region and configured to adjust the diameter of the exhaust gas inlet region.3. The system of claim 2 , wherein the scavenging valve comprises a plurality of guide blades claim 2 , each guide blade comprising an airfoil configured to rotate about an axis angled to the direction of exhaust gas flow.4. The system of claim 3 , wherein a single actuator actuates the plurality of guide blades.5. The system of claim 3 , wherein the plurality of guide blades comprises a plurality of actuators claim 3 , each actuator configured to actuate a single airfoil corresponding to each guide blade.6. The system of claim 2 , wherein the scavenging valve is a diaphragm.7. The system of claim 6 , wherein the diaphragm is inflated or deflated to adjust the diameter of the exhaust gas inlet region.8. The system of claim 2 , wherein the scavenging valve is an iris diaphragm.9. An engine system claim 2 , comprising:an engine fluidly coupled to an exhaust passage, wherein a turbine is arranged along the exhaust passage;an exhaust gas inlet region fluidly coupling a turbine outlet to an aftertreatment device; anda scavenging valve arranged in the exhaust gas inlet region configured to adjust a cross-sectional flow-through area of the exhaust gas inlet region in response to an exhaust gas mass flow, wherein the scavenging valve is a diaphragm.10. The engine system of claim 9 , wherein the ...

CHARGE-AIR INTERCOOLER SYSTEM WITH INTEGRATED HEATING DEVICE

Methods and systems are provided for a charge air cooling system of an engine. In one example, a turbocharger arrangement includes an internal combustion engine, a turbocharger for supercharging the internal combustion engine, a charge-air intercooler located in an intake tract between the turbocharger and the internal combustion engine, and an auxiliary cooling system including a first feed line for supplying a first coolant to the charge-air intercooler, the first feed line positioned upstream of the charge-air intercooler and downstream of a cooling element, the first feed line including a heat recovery element. The heat recovery element may exchange heat between the first coolant and a heat transfer medium, the heat transfer medium including one of engine coolant or exhaust gas. 1. A turbocharger arrangement , comprising:an engine;a turbocharger for supercharging the engine;a charge-air intercooler located in an intake tract between the turbocharger and the engine; andan auxiliary cooling system including a first feed line for supplying a first coolant to the charge-air intercooler, the first feed line positioned upstream of the charge-air intercooler and downstream of a cooling element, the first feed line including a heat recovery element.2. The turbocharger arrangement of claim 1 , wherein the heat recovery element exchanges heat between the first coolant and a heat transfer medium claim 1 , the heat transfer medium including one of engine coolant or exhaust gas.3. The turbocharger arrangement of claim 1 , wherein a second coolant from a main cooling system is fed to the heat recovery element claim 1 , a second feed line branching off from a bypass avoiding a main radiator and leading to the heat recovery element claim 1 , a return line carrying the second coolant drawn from the bypass from the heat recovery element to a thermostat.4. The turbocharger arrangement of claim 3 , wherein a control element is arranged in the second feed line upstream of the heat ...

BOOSTED INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION AND METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

An internal combustion engine system is provided herein. The internal combustion engine includes an active cylinder, a selectively deactivatable cylinder, the active cylinder and selectively deactivatable cylinder each coupled to an intake system and exhaust-gas discharge system, an exhaust-gas turbocharger having a turbine positioned in the exhaust-gas discharge system and a compressor positioned in the intake system, a blower positioned in the intake system downstream of the compressor, and a bypass line bypassing the blower and including a shut-off valve. 1. An internal combustion engine comprising:an active cylinder;a selectively deactivatable cylinder, the active cylinder and selectively deactivatable cylinder each coupled to an intake system and exhaust-gas discharge system;an exhaust-gas turbocharger having a turbine positioned in the exhaust-gas discharge system and a compressor positioned in the intake system;a blower positioned in the intake system downstream of the compressor; anda bypass line bypassing the blower and including a shut-off valve.2. The internal combustion engine of claim 1 , further comprising a controller configured to deactivate the two selectively deactivatable cylinders during a selected time interval and operate the blower and shut-off valve to provide a predetermined amount of charge-air flow to the active cylinders during the selected time interval.3. The internal combustion engine of claim 1 , where the blower is mechanically driven.4. The internal combustion engine of claim 1 , further comprising an exhaust gas recirculation (EGR) line coupled directly upstream and downstream of the selectively deactivatable cylinder and including an EGR valve positioned in the EGR line.5. The internal combustion engine of claim 4 , further comprising a controller configured to open the EGR valve during deactivation of the selectively deactivatable cylinder and close the EGR valve.6. An internal combustion engine comprising:a cylinder in a first ...

EXHAUST GAS TEMPERATURE REGULATION IN A BYPASS DUCT OF AN EXHAUST GAS RECIRCULATION SYSTEM

An exhaust gas recirculation system is provided in a motor vehicle to pass exhaust gas out of an exhaust tract into an intake tract of a motor vehicle, said system having a cooler device and a bypass duct, wherein the bypass duct is bounded by a double wall, which can be filled with a gas to thermally insulate the bypass duct and with a liquid to cool or heat the bypass duct. A method for controlling the temperature of a bypass duct of the exhaust gas recirculation system is furthermore provided. 1. A system comprising:an exhaust gas recirculation system in a motor vehicle for passing exhaust gas out of an exhaust tract into an intake tract of the motor vehicle, said system having a duct with a cooler device and a bypass duct, in which the bypass duct is bounded in a radial direction by a double wall with a cavity which is in fluid connection in each case via at least one opening in an outer wall of the double wall with a first flow circuit and a second flow circuit and which can be filled with gas or liquid to control the temperature of the bypass duct.2. The system of claim 1 , wherein the first flow circuit comprises at least one first line with at least one first valve and at least one second line with at least one second valve.3. The system of claim 2 , wherein the first flow circuit comprises a container with a first subregion configured to store gas and a second subregion configured to store liquid.4. The system of claim 1 , wherein each of the first and second flow circuits comprises at least one pump.5. The system of claim 1 , wherein the second flow circuit comprises at least one third line with at least one third valve and at least one fourth line with at least one fourth valve.6. The system of claim 5 , wherein the second flow circuit further comprises a liquid reservoir fluidly coupled to the third and fourth lines.7. A method comprising:controlling a temperature of a bypass duct of an exhaust gas recirculation system to thermally insulate or cool a ...

SYSTEMS AND METHOD FOR CHARGE AIR COOLER DE-ICING

Methods and systems are provided for de-icing a charge-air cooler of a boosted engine system when the engine is turned off. In one example, a method may include recirculating air through a bypass passage including an activated electric supercharger and the CAC. The air is warmed by compression and thaws ice accumulated in the CAC. 1. A supercharged internal combustion engine comprising at least one cylinder head comprising at least one cylinder , in which;each cylinder has at least one inlet opening which is adjoined by an intake line for the supply of air via an intake system; andeach cylinder has at least one outlet opening which is adjoined by an exhaust line for the discharge of the exhaust gases via an exhaust-gas discharge system; anda charge-air cooler is provided in the intake system; andan electrically driveable compressor is arranged in the intake system, the electrically driveable compressor being the compressor of an electric supercharger; andwherein a bypass line is provided, which branches off from the intake system, so as to form a first junction point, downstream of the electrically driveable compressor and downstream of the charge-air cooler and opens into the intake system, so as to form a second junction point, upstream of the electrically driveable compressor and upstream of the charge-air cooler.2. The supercharged internal combustion engine of claim 1 , wherein the bypass line is equipped with a shut-off element.3. The supercharged internal combustion engine of claim 2 , wherein a sensor is arranged in the bypass line and detects claim 2 , by measurement claim 2 , a temperature of the air conveyed via the bypass line.4. The supercharged internal combustion engine of claim 3 , wherein the bypass line is provided for bypassing the electrically driveable compressor.5. The supercharged internal combustion engine of claim 1 , wherein at least one exhaust gas turbocharger is provided with a turbine arranged in the exhaust-gas discharge system and a ...

SUPERCHARGED INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A method and system is provided to heat and cool the charge air in an intake system via a compressor coolant duct to reduce condensate formation on the one hand respectively increase charge air cooling on the other hand. Potential heat sources for the low temperature circuit do include the high temperature engine cooling circuit as well as exhaust gas. A shut-off element arranged in a bypass line about the heat exchanger may be adjusted to control delivery responsive to the charge air temperature condition. 1. A supercharged internal combustion engine , comprising:at least one intake line, arranged in an intake system, for supplying charge air to the internal combustion engine;at least one exhaust line, arranged in an exhaust-gas discharge system, for discharging exhaust gases;at least one compressor, arranged in the at least one intake line, which comprises at least one rotor mounted on a rotatable shaft and a housing in which said at least one rotor is arranged, wherein the compressor is equipped with a liquid-type cooling arrangement, for which purpose, the housing has at least one integrated coolant duct, an exhaust-gas recirculation arrangement, the recirculation line of which branches off from the exhaust-gas discharge system and issues into the intake system upstream the compressor;wherein, to form the liquid-type cooling arrangement, a cooling circuit is provided which leads through the at least one coolant duct integrated in the housing, wherein a heat exchanger is arranged in the cooling circuit upstream of the housing, which heat exchanger serves for heating a cooling liquid; andthe at least one compressor is a constituent part of an exhaust-gas turbocharger.2. The supercharged internal combustion engine of claim 1 , wherein a charge-air cooler is provided downstream of the at least one compressor.3. The supercharged internal combustion engine of claim 1 , wherein the at least one compressor is a radial compressor;the housing is of modular form as a multi ...

Methods and systems for a supercharged internal combustion engine

Methods and systems are provided for a swirl generating device upstream of a compressor. In one example, a method for actuating the swirl generating device, which is located in a ring-shaped duct, adjust a swirl of charge air flowing through the ring-shaped duct to the compressor in response to engine operating conditions.

Method and systems for a charge air cooler bypass

The present disclosure concerns a charge cooler with an air cooler in a first air path and with a bypass in a second air path which is connected in parallel to the first air path, wherein a thermal insulation is assigned to the bypass which thermally isolates the bypass from the air cooler, wherein the air cooler has a double-walled base body with an outer wall and with an inner wall, wherein the thermal insulation is arranged on the inner wall. The present disclosure also concerns a valve for such a charge cooler, and a turbo-charged internal combustion engine with such a charge cooler, and a motor vehicle with such an internal combustion engine.

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGING ARRANGEMENT, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

The disclosure relates to a supercharged internal combustion engine with an intake system and an exhaust gas discharge system that include two turbochargers arranged in series, a turbo-generator, and an electrically-driven compressor. During engine operation with mid-to-high exhaust gas flow rates, excess exhaust gas that bypasses the high-pressure turbocharger may be directed through the turbo-generator to generate electricity that may be provided to drive the electrically-driven compressor. 1. A supercharged internal combustion engine system , comprising:an intake system for supply of charge air to an internal combustion engine;an exhaust-gas discharge system for discharge of exhaust gases from the internal combustion engine;at least two series-connected exhaust-gas turbochargers which each comprise a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system, the at least two series-connected exhaust-gas turbochargers including a first exhaust-gas turbocharger that serves as a low-pressure stage and a second exhaust-gas turbocharger that serves as a high-pressure stage, a second compressor of the second exhaust-gas turbocharger arranged downstream of a first compressor of the first exhaust-gas turbocharger, a first turbine of the first exhaust-gas turbocharger arranged downstream of a second turbine of the second exhaust-gas turbocharger;a third bypass line in which a third shut-off element is arranged;a third turbine arranged in the exhaust-gas discharge system in parallel with respect to the second turbine of the second exhaust-gas turbocharger, the third turbine equipped with a variable turbine geometry and connected in terms of drive to a generator;a fourth shut-off element for activation purposes arranged upstream of the third turbine,a first bypass line in which a first shut-off element is arranged and which branches off from the exhaust-gas discharge system upstream of the third turbine and the second turbine of the ...

LOW-PRESSURE EGR VALVE

An Exhaust Gas Recirculation (EGR) Valve is disclosed including a housing having a first side configured to be coupled with a fresh air inlet, a second side configured to be coupled with an outlet, and an exhaust-gas inlet defined at a bottom of the housing. The housing may include one or more inner surfaces defining at least one path to direct a condensate, when present at any point on a bottom surface of an inside of the housing, to a low point within the housing directed by gravity. The outlet may be configured to be fluidically coupled with a turbo compressor. 1. A low-pressure Exhaust Gas Recirculation (EGR) Valve comprising: a first side configured to be coupled with a fresh air inlet,', 'a second side configured to be coupled with an outlet,', 'an exhaust-gas inlet defined at a bottom of the housing one or more inner surfaces defining at least one path to direct a condensate, when present at any point on a bottom surface of an inside of the housing, to a low point within the housing directed by gravity; and, 'a housing havingthe outlet configured to be fluidically coupled with a turbo compressor.2. The low-pressure EGR valve of claim 1 , wherein the at least one path drops strictly monotonically.3. The low-pressure EGR valve of claim 1 , wherein the exhaust-gas inlet is arranged at a lowest point of the bottom surface.4. The low-pressure EGR valve of claim 1 , in which the housing includes a wall shaped such that from any point on the wall there is at least one path along the wall running monotonically down to a given point on a rim of the bottom surface.5. The low-pressure EGR valve of claim 1 , in which the housing includes a ceiling which is shaped such that from any point on the ceiling there is at least one path along the ceiling running monotonically down to a given point on a rim of the wall.6. The low-pressure EGR valve of claim 1 , further comprising a drain defined in the bottom surface.7. The low-pressure EGR valve of claim 6 , wherein the wall ...

EXHAUST FLOW VALVE FOR TWIN-SCROLL TURBINE AND OPERATING METHODS THEREOF

A supercharged engine and operating methods thereof are described for adjusting an extent of fluidic coupling between separate channels of a two-channel turbine. In one particular example, a longitudinally displaceable flow transfer valve is arranged for movement lateral to the exhaust airflow that provides coupling between the channels, a position of the flow transfer valve within a flow transfer duct controlling the extent of fluidic coupling in addition to the rate of exhaust-gas flow through a blow-off line that conducts airflow past a rotor of the two-channel turbine. In this way, the flow transfer valve according to the present disclosure advantageously allows for adjusting a mode of supercharging based on one or more engine conditions to control the extent of fluidic coupling using a simplified valve arrangement. 1. An engine , comprising:at least two cylinders arranged into different groups;independent exhaust lines flowing therefrom into separate exhaust channels based on cylinder group;a two-channel turbine configured to receive the separate exhaust flows that comprises a longitudinally displaceable flow transfer valve arranged laterally relative to the exhaust flows positioned within a flow transfer duct, the position of the valve relative to the duct controlling an extent of fluidic coupling between the separate channels.2. The engine of claim 1 , wherein the flow transfer valve arranged laterally is located upstream of a rotor of the two-channel turbine.3. The engine of claim 2 , wherein the flow transfer valve further includes a plunger-like end configured to fit within a first recess of the flow transfer duct in a rest position claim 2 , the flow transfer valve completely occupying the first recess in the rest position allowing separate airflows through the separate exhaust channels.4. The engine of claim 3 , wherein the flow transfer valve further includes a second claim 3 , thickened section with a larger cross section than the plunger-like end ...

Internal combustion engine with turbine

Methods and systems are provided for controlling a turbine within an internal combustion engine. In one example, a turbine system within an internal combustion engine may include at least one turbine with a housing that may further include at least one impeller mounted on a rotatable shaft, inlet and outlet regions, and at least one overpressure line including a self-controlling valve for controlling the flow of exhaust gas.

AUTO-IGNITION INTERNAL COMBUSTION ENGINE SUITABLE FOR HCCI OPERATION, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Methods and systems are provided for an auto-ignition internal combustion engine comprising an exhaust gas recirculation arrangement, an intake system, and an exhaust gas discharge system for the discharge of exhaust gases, in which the internal combustion engine is operable, at least in a first, stoichiometric operating mode, by way of a spatial ignition method (HCCI mode). For the aftertreatment of the exhaust gas in the first operating mode, a three-way catalytic converter is provided in the exhaust gas discharge system for reducing nitrogen oxides and oxidizing unburned hydrocarbons and carbon monoxide. In this way, the auto-ignition internal combustion engine has a greater window of operation in the HCCI mode than conventional auto-ignition internal combustion engines. 1. A system , comprising:an intake system to supply charge air to an auto-ignition internal combustion engine;an exhaust gas discharge system for the discharge of exhaust gas from the engine;an exhaust gas recirculation arrangement to recirculate a portion of the exhaust gas into the intake system; anda three-way catalytic converter in the exhaust gas discharge system configured to reduce nitrogen oxides and oxidize unburned hydrocarbons and carbon monoxide in the exhaust gas when the internal combustion engine is operated in a first operating mode at a stoichiometric air-fuel ratio with homogenous charge compression ignition.2. The system as claimed in claim 1 , further comprising an exhaust gas turbocharger claim 1 , the exhaust gas turbocharger comprising a turbine arranged in the exhaust gas discharge system upstream of the three-way catalytic converter and a compressor arranged in the intake system.3. The system as claimed in claim 2 , wherein the turbine is a variable geometry turbine.4. The system as claimed in claim 2 , further comprising:a line for exhaust gas recirculation that branches off from the exhaust gas discharge system between the turbine and the three-way catalytic converter, ...

METHODS AND SYSTEMS FOR MITIGATING CONDENSATE FORMATION

Methods and systems are provided for a condensation mitigation device. In one example, a system may include a vortex generator arranged in a flow channel of a compressor along with a condensate collection device configured to direct condensate away from compressor blades of the compressor. 1. A system , comprising:a compressor inlet comprising a condensate collection device arranged between a compressor and a vortex generator, wherein a position of the vortex generator is adjustable.2. The system of claim 1 , wherein the vortex generator is configured to actuate radially outward when exhaust gas recirculate is not flowing and radially inward when exhaust gas recirculate is flowing.3. The system of claim 1 , wherein the vortex generator extends radially inward into the compressor inlet by a distance.4. The system of claim 3 , wherein the condensate collection device comprises a condensate edge which extends radially inward by an amount equal to or less than the distance.5. The system of claim 1 , wherein the condensate collection device comprises a droplet separator fluidly coupled to an annular depression.6. The system of claim 5 , wherein the droplet separator is configured to receive condensate accumulated onto an inner wall of the compressor inlet.7. The system of claim 5 , wherein the droplet separator comprises an annular shape and wherein the annular depression is fluidly coupled to a discharge passage arranged in a lowest point of the compressor inlet relative to gravity.8. The system of claim 1 , wherein the condensate collection device comprises a gutter.9. The system of claim 8 , wherein the gutter annularly extends around the compressor inlet and is configured to dispense condensate into a discharge passage arranged in a lowest point of the compressor inlet relative to gravity.10. A turbocharger claim 8 , comprising:a compressor comprising a compressor inlet;a condensate collection device arranged within the compressor inlet along an inner wall of the ...

EXHAUST GAS-TURBOCHARGED INTERNAL COMBUSTION ENGINE COMPRISING A RADIAL COMPRESSOR WITH GUIDE DEVICE ARRANGED IN THE DIFFUSER, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Methods and systems are provided for an adjustable diffuser of a turbocharger compressor. In one example, a compressor includes a diffuser formed in a compressor housing downstream of an impeller of the compressor, the diffuser including guide blades mounted on a rotatable annular support of the diffuser. Further, an engine controller may adjust rotation of the annular support based on one or more engine operating conditions. 1. A supercharged internal combustion engine , comprising:an intake system for the supply of charge air;an exhaust-gas discharge system for the discharge of exhaust gas; andat least one exhaust-gas turbocharger which comprises a radial turbine arranged in the exhaust-gas discharge system and a radial compressor arranged in the intake system, the compressor being equipped with at least one impeller which is mounted, in a compressor housing, on a rotatable shaft, a diffuser being formed in the compressor housing downstream of the at least one impeller, guide blades of a guide device being arranged in the diffuser, and the guide device comprising an annular support which holds the guide blades of the guide device, wherein the annular support together with guide blades is formed as a support which revolves about the shaft of the compressor, an electric auxiliary drive being provided for driving the support in accordance with demand, by means of which electric auxiliary drive the annular support can have a revolving movement forcibly imparted to it in at least one direction of rotation.2. The supercharged internal combustion engine as claimed in claim 1 , wherein the annular support can claim 1 , by means of the auxiliary drive claim 1 , be rotated in the opposite direction to the at least one impeller of the compressor and wherein the annular support can claim 1 , by means of the auxiliary drive claim 1 , be rotated in the same direction as the at least one impeller of the compressor.3. The supercharged internal combustion engine as claimed in ...

INTERNAL COMBUSTION ENGINE WITH DEACTIVATABLE CYLINDER, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A method and system is provided for a turbocharged multi-cylinder internal combustion engine comprising a two-channel turbine and at least two groups of cylinders, wherein one group of cylinders is switchable responsive to an engine load over a threshold. Exhaust lines of each group of cylinders are arranged in a targeted manner to couple with the turbine such that the switchable group is attached to one channel and the active group is attached to the other channel to reduce the difference in distances that pressure pulses travel, wherein a shut-off element is provided in the channel attached to the switchable group and may be moved to block exhaust flow through the channel when the cylinders are deactivated, thus improving the partial deactivation and turbocharging characteristics of the engine. 1. A supercharged , applied-ignition internal combustion engine comprising:at least two cylinders, in which each cylinder has at least one outlet opening adjoining an exhaust line for discharging the exhaust gases via an exhaust-gas discharge system;each cylinder has at least one inlet opening adjoining an intake line for the supply of charge air via an intake system;at least two cylinders are configured in such a way that they form at least two groups with in each case at least one cylinder, wherein the at least one cylinder of a first group is a cylinder which is in operation even in the event of a partial deactivation of the internal combustion engine, and the at least one cylinder of a second group is formed as a cylinder which can be switched in a load-dependent manner;at least one exhaust-gas turbocharger is provided which comprises a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system;whereinthe exhaust lines of the cylinders of each cylinder group merge in each case to form an overall exhaust line such that an exhaust manifold is formed; andthe two overall exhaust lines are connected to a two-channel turbine, which ...

Applied-ignition internal combustion engine with variable valve drive

A system and method is provided for an at least partially variable valve drive in an internal combustion engine. In one example, the at least partially variable valve drive comprises a hydraulically adjustable actuating device which may be charged with pressurized oil via an oil pressure line which branches off from an oil circuit.

Method for performing a charge exchange in an internal combustion engine

A method and system for perform a charge exchange in internal combustion engine comprising an additional intake and exhaust valve lifts performed during positive pressure gradients between the intake and exhaust systems to reducing scavenging losses and increase torque during low engine speeds.

EXHAUST-GAS-TURBOCHARGED INTERNAL COMBUSTION ENGINE WITH PARTIAL DEACTIVATION

Embodiments for operating an engine having parallel turbochargers and two fluidically coupleable, separated intake manifolds is provided. In one example, a method includes responsive to a first condition, operating a first cylinder group of an engine, deactivating a second cylinder group of the engine, and blocking fluidic communication between a first intake manifold coupled to the first cylinder group and a second intake manifold coupled to the second cylinder group, and responsive to a second condition, activating the second cylinder group and establishing fluidic communication between the first and second intake manifolds.

METHODS FOR TURBOCHARGED ENGINE WITH CYLINDER DEACTIVATION AND VARIABLE VALVE TIMING

A system and methods are described for a turbocharged engine, comprising powering the engine using a first operating cylinder, supplementing the power using a second switchable cylinder, deactivating the second switchable cylinder responsive to a load below a first threshold, and closing a first shut-off element downstream of a compressor during the partial deactivation to prevent a first turbocharger from imparting a delivery action into a second compressor during the partial deactivation. Embodiments are further described wherein a bypass line in a second exhaust line further serves as a short-circuit line to prevent the second compressor from imparting a delivery action against the closed first shut-off element. A variable valve timing is then included to further optimize the combustion process during the partial deactivation. 1. A method for a turbocharged engine , comprising:powering the engine using a first operating cylinder,supplementing the power using a second switchable cylinder, the second switchable cylinder switched based on load and providing a partial deactivation, the second switchable cylinder being deactivated responsive to a load below a first threshold and activated responsive to the load exceeding the first threshold, andclosing a shut-off valve downstream of a compressor during the partial deactivation.2. The method of claim 1 , further comprising opening a second shut-off element in a bypass line during the partial deactivation.3. The method of claim 2 , further comprising increasing valve overlap of the first operating cylinder to scavenge out residual gas therein.4. The method of claim 3 , further comprising actuating an inlet valve of the first operating cylinder to provide an additional valve lift before top dead center during charge exchange.5. The method of claim 4 , wherein an exhaust gas is recirculated externally during operations.6. The method of claim 5 , further comprising reducing the valve overlap during the partial deactivation ...

VEHICLE HEATING SYSTEM AND METHOD OF USING THE SAME

In one or more embodiments, the present invention provides a vehicle heating system for a vehicle with an engine and a charge air cooler, the vehicle heating system including a high-temperature cooling circuit coupled to the engine, a low-temperature cooling circuit coupled to the charge air cooler and including a low temperature cooler, and a heating heat exchanger coupled to the low-temperature cooling circuit. 1. A vehicle heating system for a vehicle with an engine and a charge air cooler , comprising:a high-temperature cooling circuit coupled to the engine;a low-temperature cooling circuit coupled to the charge air cooler and including a low temperature cooler; anda heating heat exchanger coupled to the low-temperature cooling circuit.2. The vehicle heating system of claim 1 , wherein the low-temperature cooling circuit further includes a bypass for bypassing the low-temperature cooler.3. The vehicle heating system of claim 1 , wherein the heating heat exchanger is positioned downstream of the charge air cooler.4. The vehicle heating system of claim 1 , further comprising a valve operable in first and second positions claim 1 , when in one of the first and second positions claim 1 , the heating heat exchanger is in communication with the low-temperature cooling circuit via a bypass downstream of the valve.5. The vehicle heating system of claim 4 , wherein the valve is positioned downstream of the charge air cooler and upstream of the heating heat exchanger.6. The vehicle heating system of claim 1 , wherein the high-temperature cooling circuit is decoupled from the low-temperature cooling circuit.7. A method of heating an interior of a vehicle including an engine and a charge air cooler claim 1 , comprising:providing to the vehicle a vehicle heating system, wherein the vehicle heating system includes a high-temperature cooling circuit coupled to the engine and having a first heating heat exchanger and a thermostat, and a low-temperature cooling circuit coupled ...

INTERNAL COMBUSTION ENGINE WITH TWO-STAGE SUPERCHARGING CAPABILITY AND WITH EXHAUST-GAS AFTERTREATMENT ARRANGEMENT, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A supercharged internal combustion engine includes at least two exhaust-gas turbochargers arranged in series, wherein a first exhaust-gas turbocharger serves as a low-pressure stage and a second exhaust-gas turbocharger serves as a high-pressure stage. A second turbine of the second exhaust-gas turbocharger may be present upstream of a first turbine of the first exhaust-gas turbocharger, and a second compressor of the second exhaust-gas turbocharger may be arranged in an intake system downstream of a first compressor of the first exhaust-gas turbocharger and a first bypass line may branch off upstream of the second turbine and join back at a junction point between the first turbine and the second turbine. The supercharged engine also includes an exhaust-gas recirculation arrangement and at least one exhaust-gas aftertreatment system between the first turbine and the second turbine. 1. A supercharged internal combustion engine , comprising:a first exhaust-gas turbocharger with a first turbine and a first compressor;a second exhaust-gas turbocharger with a second turbine and a second compressor, arranged in series with the first exhaust-gas turbocharger, wherein the second turbine of the second exhaust-gas turbocharger is arranged in an exhaust-gas discharge system upstream of the first turbine of the first exhaust-gas turbocharger, and the second compressor of the second exhaust-gas turbocharger is arranged in an intake system downstream of the first compressor of the first exhaust-gas turbocharger;a first bypass line branching off from the exhaust-gas discharge system upstream of the second turbine and opens into the exhaust-gas discharge system again to form a junction point between the first turbine and the second turbine including a first shut-off element;an exhaust-gas recirculation arrangement associated with the exhaust-gas discharge system; andat least one exhaust-gas aftertreatment system arranged in the exhaust-gas discharge system between the first turbine ...

PRESSURE-CHARGED COMBUSTION ENGINE HAVING A DOUBLE-FLOW TURBINE AND GROUPED CYLINDERS

Methods and systems are provided for a pressure-charged combustion engine having at least one cylinder head comprising at least two cylinders. In one example, a system may include each cylinder having at least one outlet port, at least two cylinders configured to form two groups each comprising at least one cylinder, exhaust lines joined together to form an overall exhaust line which provides an exhaust manifold, the exhaust lines connected to an exhaust turbocharger and equipped with rotor blades wherein each rotor blade comprises a first inlet edge facing the flows and a second inlet edge facing the flows connected to one another at a connection point forming an inflection. 1. A pressure-charged combustion engine having at least one cylinder head comprising:at least two cylinders, in which each cylinder has at least one outlet port for discharging the exhaust gases from the cylinder via an exhaust gas discharge system, and an exhaust line adjoins each outlet port,at least two cylinders are configured in such a way that they form two groups,each comprising at least one cylinder,the exhaust lines of the cylinders of each cylinder group in each case come together to form an overall exhaust line, thereby forming an exhaust manifold, andthe two overall exhaust lines are connected in such a way to a double-flow turbine of an exhaust turbocharger, said turbine comprising a turbine wheel mounted on a rotatable shaft in a turbine housing and equipped with rotor blades, that in each case one overall exhaust line is connected to one of the two flows of the turbine, wherein the two flows are separated from one another, at least in some section or sections, in the direction of the turbine wheel, as are therefore also the exhaust gas discharge systems of the cylinder groups, by means of a housing wall in continuation of the overall exhaust lines,wherein each rotor blade of the turbine wheel has an inlet edge facing the flows, wherein first inlet edge associated with a first ...

EXHAUST-GAS-TURBOCHARGED INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO TURBINES AND SWITCHABLE OUTLET OPENINGS, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Systems and methods are provided for controlling boost pressure in an engine system with a parallel turbocharger. One example method includes, responsive to a first condition, deactivating a first compressor of a first turbocharger, activating each first exhaust valve of each cylinder of an engine, and deactivating each second exhaust valve of each cylinder of the engine to flow exhaust gas from the engine to a second turbocharger. The method further includes, responsive to boost pressure exceeding a threshold, maintaining deactivation of the first compressor, reactivating each second exhaust valve to flow exhaust gas from the engine to both the first turbocharger and second turbocharger, and driving an electric assist device via a first turbine of the first turbocharger. 1. An engine system , comprising:an intake system for supplying charge air to an engine having at least two cylinders, each cylinder including at least two outlet openings for discharge of exhaust gases, at least one of the at least two outlet openings of each cylinder being a switchable outlet opening, each outlet opening being adjoined by an exhaust line for the discharge of the exhaust gases via an exhaust-gas discharge system;a first exhaust-gas turbocharger and a second exhaust-gas turbocharger, each exhaust-gas turbocharger comprising a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system;a first exhaust manifold formed from a first overall exhaust line, the exhaust line of at least one switchable outlet opening of each cylinder issuing into the first overall exhaust line, said first overall exhaust line being connected to a first turbine of the first exhaust-gas turbocharger;a second exhaust manifold formed from a second overall exhaust line, the exhaust lines of the other outlet openings of the at least two cylinders merging to form the second overall exhaust line, said second overall exhaust line being connected to a second turbine of the ...

METHOD FOR PERFORMING A CHARGE EXCHANGE IN AN INTERNAL COMBUSTION ENGINE

A method and system for perform a charge exchange in internal combustion engine comprising an additional intake and exhaust valve lifts performed during positive pressure gradients between the intake and exhaust systems to reducing scavenging losses and increase torque during low engine speeds. 1. A system for performing a charge exchange in an internal combustion engine comprising:at least one cylinder head with at least one cylinder, each cylinder having at least one inlet opening for the supply of fresh air via an intake system and having at least one outlet opening for discharging exhaust gases via an exhaust-gas discharge system and having a piston which is movable along a piston longitudinal axis between a bottom dead center and a top dead center, andat least two valve drives with at least two valves which are movable along their longitudinal axes between a valve closed position and a valve open position, performing a maximum valve lift, in order to open up and block the at least one inlet opening and the at least one outlet opening of the at least one cylinder during the course of a charge exchange, and having at least two actuating devices for opening the valves counter to a preload force,wherein an inlet valve of the at least one inlet opening is actuated to perform an additional valve lift before the piston, during the course of the charge exchange, reaches top dead center and before the inlet valve, during the course of the charge exchange, performs the maximum valve lift, andwherein an outlet valve of the at least one outlet opening is actuated to perform an additional valve lift before the piston, during the course of the charge exchange, reaches bottom dead center and after the outlet valve, during the course of the charge exchange, has performed the maximum valve lift.2. The system of claim 1 , wherein the inlet valve of the at least one inlet opening is actuated claim 1 , for the purpose of performing the additional valve lift claim 1 , while the at ...

METHODS AND SYSTEMS FOR AN EXHAUST GAS RECIRCULATION COOLER

Methods and systems are provided for an EGR cooler having first and second coolant jackets fluidly coupled to first and second coolant systems, respectively. In one example, the first and second coolant jackets are hermetically sealed from one another. Furthermore, the second coolant jacket protrudes into a portion of an exhaust gas passage directly downstream of an exhaust aftertreatment device. 1. A forced-induction internal combustion engine havingat least one cylinder;an intake system for supplying the at least one cylinder with charge air;an exhaust system for discharging the exhaust gases, andan exhaust gas recirculation system, which has a recirculation line which, while forming a junction, branches off from the exhaust system and opens into the intake system, wherein a cooler is arranged in the recirculation line, which cooler has a core, which conducts coolant, is incorporated into a first coolant circuit and serves to transfer heat between the exhaust gas and the coolant, and where the cooler projects into the exhaust system in the region of the core, and at least one coolant jacket, which conducts coolant, is provided in the cooler, said jacket being arranged between the core conducting coolant and the exhaust system conducting exhaust gas and being incorporated into a second coolant circuit , wherein, to form the second coolant circuit, the at least one coolant jacket has a discharge line for discharging the coolant and a supply line for supplying the coolant.2. The forced-induction internal combustion engine of claim 1 , wherein the coolant of the second coolant circuit is stored in a container claim 1 , which is at least connectable to the at least one coolant jacket of the second coolant circuit via the discharge line and via the supply line.3. The forced-induction internal combustion engine of claim 2 , further comprising a bypass line for bypassing the container is provided claim 2 , said bypass line branching off from the discharge line and opening ...

METHODS AND SYSTEMS FOR AN AFTERTREATMENT SYSTEM

Methods and systems are provided for an aftertreatment system. In one example, a method comprises regenerating a NOtrap during an engine shut-down event. The method further comprises reversing a direction of flow of a gas through a HP-EGR passage during the regenerating. 1. A method for regenerating a NOx storage catalytic converter of an exhaust gas aftertreatment device of an internal combustion engine arrangement comprising an internal combustion engine , an electrically driven supercharger , a high pressure exhaust gas recirculation flow channel , a low pressure exhaust gas recirculation flow channel with an inlet downstream of the NOx storage catalytic converter , and an exhaust gas valve arranged downstream of the inlet of the low pressure exhaust gas recirculation flow channel , wherein the regenerating comprises:detecting a shut-down of the internal combustion engine;determining a load of the NOx storage catalytic converter;determining a current operating temperature of the NOx storage catalytic converter;regenerating the NOx storage catalytic converter in response to the load exceeding a threshold load and the current operating temperature exceeding a threshold temperature, wherein the regenerating comprises a mixture of air and recirculated exhaust gas being conducted via the electrically driven supercharger, wherein the regenerating comprises closing the exhaust gas valve.2. The method of claim 1 , further comprising flowing exhaust gas and fresh air through the low pressure exhaust gas recirculation flow channel claim 1 , wherein the low pressure exhaust gas recirculation flow channel comprises a low pressure exhaust gas recirculation valve claim 1 , wherein the low pressure exhaust gas recirculation valve is opened before the regenerating of the NOx storage catalytic converter claim 1 , further comprising flowing the fresh air and the exhaust gas through the high pressure exhaust gas recirculation flow channel claim 1 , wherein the high pressure exhaust ...

Internal combustion engine with two-stage supercharging capability and with exhaust-gas aftertreatment arrangement, and method for operating an internal combustion engine of said type

A supercharged internal combustion engine includes at least two exhaust-gas turbochargers arranged in series, wherein a first exhaust-gas turbocharger serves as a low-pressure stage and a second exhaust-gas turbocharger serves as a high-pressure stage. A second turbine of the second exhaust-gas turbocharger may be present upstream of a first turbine of the first exhaust-gas turbocharger, and a second compressor of the second exhaust-gas turbocharger may be arranged in an intake system downstream of a first compressor of the first exhaust-gas turbocharger and a first bypass line may branch off upstream of the second turbine and join back at a junction point between the first turbine and the second turbine.

EXHAUST GAS PASSAGE WITH AFTERTREATMENT SYSTEM

Methods and systems are provided for adjusting flow of exhaust gas from downstream of an exhaust turbine outlet to an exhaust gas aftertreatment device inlet via a compact turbine outlet cone with adjustable swirl vanes. Exhaust flow reaching the exhaust gas aftertreatment device is adjusted based on a desired exhaust gas temperature and exhaust gas flow rate at the aftertreatment device. During cold start conditions, the swirl vanes may be closed to concentrate exhaust gas flowing towards a portion of the aftertreatment device while after attainment of aftertreatment device light-off temperature, the position of the swirl vanes may be adjusted to introduce turbulence and homogeneity to exhaust flow reaching the exhaust aftertreatment device. 1. A method comprising:during cold start conditions, closing a plurality of vanes coupled to an exhaust turbine outlet cone to concentrate exhaust flowing towards a portion of an exhaust aftertreatment device, andafter attainment of exhaust aftertreatment device light-off temperature, adjusting an orientation of the plurality of vanes to introduce turbulence and homogeneity to exhaust flow reaching the exhaust aftertreatment device.2. The method of claim 1 , wherein closing the plurality of vanes and adjusting the orientation of the plurality of vanes include adjusting a ring coupled to each vane of the plurality of vanes via a plurality of shafts and levers claim 1 , wherein a shaft forms an axis about which a vane can rotate.3. The method of claim 2 , wherein the ring is coupled to an outer surface of a wall enclosing the turbine outlet cone via a mounting device and an actuator is coupled to the ring to adjust the ring.4. The method of claim 1 , wherein adjusting the orientation of the plurality of vanes is based on one or more of exhaust mass flow claim 1 , exhaust temperature claim 1 , temperature demand of exhaust aftertreatment device.5. The method of claim 1 , further comprising claim 1 , closing the plurality of vanes ...

ENGINE SYSTEM WITH INTAKE AIR-SUPPLY TURBINE AND MOTOR-DRIVEN COMPRESSOR

A method for operation of an engine. The method includes during a first operating condition, permitting intake airflow through an intake air-supply turbine positioned upstream of a cylinder to drive a generator, the generator coupled to an energy storage device, and inhibiting intake airflow through a motor-driven compressor arranged in parallel flow arrangement with the intake air-supply turbine, the motor driven compressor coupled to a motor coupled to the energy storage device. The method further includes during a second operating condition, permitting intake airflow through the motor-driven compressor while the motor-driven compressor receives rotation input from the motor, and inhibiting intake airflow through the intake air-supply turbine. 1. A motor vehicle comprising:an internal combustion engine;an air-supply tract providing intake air to the internal combustion engine;an exhaust gas tract receiving exhaust gas from the internal combustion engine;a compressor which is arranged in the air-supply tract;an intake air-supply turbine which is arranged in an intake air-supply turbine conduit of the air-supply tract downstream of the compressor and is configured to transmit torque to a generator coupled to an energy storage device; anda motor-driven compressor positioned in a motor-driven compressor conduit in a parallel flow arrangement with the first intake conduit in the air-supply tract, the motor-driven compressor coupled to a motor configured to the energy storage device.2. The motor vehicle of claim 1 , further comprising an intake air-supply turbine valve positioned in the intake air-supply turbine conduit claim 1 , a motor-driven compressor valve positioned in the motor-driven compressor conduit claim 1 , and a control system configured to adjust the flow of intake air through the intake air-supply turbine valve and the motor-driven compressor valve based on engine operating conditions.3. The motor vehicle of claim 2 , where the control system is ...

EXHAUST-GAS-TURBOCHARGED APPLIED-IGNITION INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO TURBINES, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

A method for operating a boosted internal combustion engine is provided. The engine includes a first cylinder in a first cylinder group and a second cylinder in a second cylinder group, each of the first and second cylinders having two activatable outlet openings adjoined by an exhaust line, one of the outlet openings of each of the first and second cylinders coupled to a first turbocharger including a first turbine and one of the outlet openings of each of the cylinders coupled to a second turbocharger including a second turbine, the method comprising: if engine load is less than a threshold load value implementing a first operating mode that includes deactivating the second cylinder, deactivating one of the activatable outlet openings in the first cylinder, and activating one of the activatable outlet opening in the first cylinder. 1. A boosted applied-ignition internal combustion engine comprising:at least two cylinders in which each cylinder has at least two outlet openings for the discharge of the exhaust gases, at least one of which is in the form of an activatable outlet opening, each outlet opening being adjoined by an exhaust line for the discharge of the exhaust gases via an exhaust-gas discharge system; and where the exhaust lines of the at least two cylinders are configured such that the exhaust line of an activatable outlet opening of each cylinder issues into a first overall exhaust line, forming a first exhaust manifold, said first overall exhaust line being connected to the turbine of a first exhaust-gas turbocharger, and the exhaust lines of the other outlet openings of the at least two cylinders merging to form a second overall exhaust line, forming a second exhaust manifold, said second overall exhaust line being connected to the turbine of a second exhaust-gas turbocharger;', 'the at least two cylinders form at least two cylinder groups with in each case at least one cylinder, the at least one cylinder of a first cylinder group being operational ...

Auto-ignition internal combustion engine with exhaust-gas turbocharging and exhaust-gas recirculation

Embodiments of an internal combustion engine are provided. In one example, an engine includes at least one cylinder, an intake system for supplying charge air to the at least one cylinder, an exhaust-gas discharge system for discharging exhaust gas from the at least one cylinder, a first exhaust-gas turbocharger including a first turbine arranged in the exhaust-gas discharge system and a first compressor arranged in the intake system; and an exhaust-gas recirculation (EGR) system. The EGR system includes a line which branches off from the exhaust-gas discharge system and opens into the intake system, a second exhaust-gas turbocharger comprising an EGR turbine arranged in the line on a shaft and an EGR compressor arranged in the line on the shaft upstream of said EGR turbine, and an EGR cooler positioned between the EGR turbine and the EGR compressor.

METHODS AND SYSTEMS FOR A TURBOCHARGED ENGINE

Methods and systems are provided for a heating device. In one example, a system comprises a heat exchanger and an air filter arranged in a common housing, wherein the heat exchanger is configured to receive coolant from a heating device. In one example, the heating device is an electric heating device. 1. A supercharged internal combustion engine , comprising:a liquid cooling arrangement comprising a coolant circuit conducting a coolant,an intake system configured to supply charge air;an exhaust-gas discharge system configured to discharge exhaust gas;at least one compressor arranged in the intake system, wherein the at least one compressor comprises at least one impeller which is mounted on a rotatable shaft in a compressor housing and is equipped with impeller blades;an exhaust-gas recirculation arrangement comprising a recirculation line which opens into the intake system at a junction point, upstream of the at least one compressor impeller; anda heat exchanger arranged upstream of the first junction point in the intake system, wherein the heat exchanger is fluidly coupled to the coolant circuit and configured to allow thermal communication between the charge air and the coolant, further comprising an electrically operated heating device arranged in the coolant circuit upstream of the heat exchanger.2. The supercharged internal combustion engine of claim 1 , wherein the junction point is a first junction point claim 1 , wherein the recirculation line branches off from the exhaust-gas discharge system at a second junction point.3. The supercharged internal combustion engine of claim 1 , wherein a consumer is not arranged in the coolant circuit between the heat exchanger and the electrically operated heating device.4. The supercharged internal combustion engine of claim 1 , wherein an air-cleaning device and the heat exchanger are configured as a joint integrative component arranged in a common housing.5. The supercharged internal combustion engine of claim 4 , ...

METHOD AND SYSTEM FOR AN ENGINE

Methods and systems are provided for a variable displacement engine. In one example, a method may include flowing charge air from a deactivated cylinder to an adjacent firing cylinder. 1. A method comprising:operating a supercharged auto-ignition internal combustion engine having at least one cylinder head comprising at least two cylinders,each cylinder having at least one outlet opening for discharging exhaust gases to an exhaust-gas discharge system and at least one inlet opening for receiving charge air from an intake system, and where each cylinder further comprises a piston which is movable along a piston longitudinal axis between a bottom dead center BDC and a top dead center TDC; and the intake system further comprising at least one exhaust-gas turbocharger a compressor coupled to a turbine arranged in the exhaust-gas discharge system;adjusting a position of the inlet openings and outlet openings of the cylinders via a valve drive, anddeactivating one of the two cylinders during some engine conditions, where the deactivation further includes discharging intake air received by the deactivated cylinder to an operational cylinder through at least one inlet opening of the inlet openings of the deactivated cylinder following a compression stroke of a piston of the deactivated cylinder moving from bottom dead center to top dead center to a flow transfer duct, and where the flow transfer duct direct the discharged charge air to an operational cylinder.2. The method as claimed in claim 1 , wherein the at least one inlet opening of the deactivated cylinder is opened between a range later than 50° CA to 90° CA after bottom dead center during the course of the compression stroke.3. The method of claim 2 , wherein the at least one inlet opening of the deactivated cylinder is closed before the piston reaches top dead center during the compression stroke.4. The method of claim 1 , wherein the at least one inlet opening and at least one outlet opening oscillate between open ...

SYSTEMS AND METHODS FOR A BOOSTED INTERNAL COMBUSTION ENGINE WITH AN INTAKE-SIDE BYPASS LINE

Methods and systems are provided for a boosted internal combustion engine. In one example, a system may include an intake system for supplying charge air, a compressor arranged in the intake system, a first shut-off element arranged in the intake system upstream of an impeller of the compressor, a bypass line that branches off from the intake system upstream of the first shut-off element and that rejoins the intake system upstream of the impeller, a second shut-off element arranged in the bypass line, a compressed air line that opens into the bypass line downstream of the second shut-off element, and a third shut-off element arranged in the compressed air line. A map width of the compressor may be increased by providing airflow to the impeller via the bypass line during low mass flow conditions, and impeller acceleration may be expedited by providing compressed air via the compressed air line. 1. A system for an internal combustion engine , comprising:an intake system for supplying charge air;a compressor arranged in the intake system, the compressor including an impeller arranged on a rotatable shaft in a compressor housing;a first shut-off element arranged in the intake system upstream of the impeller;a bypass line that branches off from the intake system upstream of the first shut-off element and opens into the intake system again between the first shut-off element and the impeller, forming a mouth region, and in which a second shut-off element is provided;a compressed air line that opens into the bypass line between the mouth region and the second shut-off element, the compressed air line coupled to a vessel that stores compressed air; anda third shut-off element arranged in the compressed air line.2. The system of claim 1 , wherein the bypass line forms claim 1 , in the mouth region and in a projection perpendicular to the shaft claim 1 , an acute angle of inclination a with respect to the shaft.3. The system of claim 1 , wherein a guide device is arranged in ...

MOTOR VEHICLE AND AIR FILTER BOX

A motor vehicle is provided which has an engine, an inlet air section for supplying the engine with inlet air, a compressor arranged in the inlet air section and a vortex generator arranged in the inlet air section upstream of the compressor. The vortex generator has at least one guide vane for generating a vortex in the inlet air and a vortex generator outlet having a first radius. The compressor has a compressor inlet having a second radius, which is smaller than the first radius. According to the invention, an exhaust gas recirculation line opens downstream of the vortex generator outlet and upstream of the compressor inlet. 1. A motor vehicle comprising an engine , an inlet air section for supplying the engine with inlet air , a compressor arranged in the inlet air section and a vortex generator arranged in the inlet air section upstream of the compressor , wherein the vortex generator has at least one guide vane for generating a vortex in the inlet air and a vortex generator outlet having a first radius , and wherein the compressor has a compressor inlet having a second radius , which is smaller than the first radius , wherein an exhaust gas recirculation line opens downstream of the vortex generator outlet and upstream of the compressor inlet.2. The motor vehicle as claimed in claim 1 , wherein the exhaust gas recirculation line is a low-pressure exhaust gas recirculation line.3. The motor vehicle as claimed in claim 1 , wherein the motor vehicle has an air filter box and the vortex generator is arranged in the air filter box.4. The motor vehicle as claimed in claim 3 , wherein the vortex generator is arranged axially.5. The motor vehicle as claimed in claim 3 , wherein the vortex generator is arranged radially.6. The motor vehicle as claimed in claim 3 , wherein the at least one guide vane is adjustable.7. The motor vehicle as claimed in claim 6 , wherein the at least one guide vane is adjusted in accordance with an operating variable of the engine.8. The ...

METHODS AND SYSTEMS FOR A CONDENSATE TRAP IN A COMPRESSOR INLET

Methods and systems are provided for a turbocharger comprising a compressor inlet shaped to mitigated condensate formation therein. In one example, system may include a condensate trap which runs along an inner wall of the compressor inlet and is shaped to trap condensate. 1. A turbocharger for an internal combustion engine , comprising ,a compressor shaped to compress intake air flowing to the internal combustion engine, the turbocharger further comprising an exhaust-gas turbine for driving the compressor, the compressor further comprising a compressor rotor in a compressor housing defining a compressor inlet upstream of the compressor rotor, the compressor inlet fluidically connected to at least one supply line of a EGR device, wherein the compressor inlet comprises a condensate trap which has at least one barrier, which runs along an inner wall of the compressor inlet, shaped to capture condensate, and which has at least one condensate drain for discharging condensate.2. The turbocharger of claim 1 , wherein the at least one barrier is formed as a trap groove claim 1 , the trap groove running at least partially annularly along the inner wall of the compressor inlet claim 1 , and where the inner wall is an upstream inner wall.3. The turbocharger of claim 2 , wherein the at least one barrier is a first barrier claim 2 , further comprising a second barrier arranged downstream of the first barrier along a downstream inner wall and extending at least partially annularly along the downstream inner wall of the compressor inlet claim 2 , wherein the downstream inner wall is closer to the compressor rotor than the upstream inner wall.4. The turbocharger of claim 3 , wherein the compressor housing comprises a condensate chamber which is fluidically connected to the condensate trap claim 3 , and where the condensate chamber collects condensate trapped by the condensate trap.5. The turbocharger of claim 4 , wherein the condensate chamber is arranged between and fluidly ...

METHODS AND SYSTEMS FOR EXHAUST-GAS RECIRCULATION

Methods and systems are provided for an exhaust-gas arrangement. In one example, a system may include a barrier dividing an intake passage into first and second portions to mitigate exhaust-gas recirculate mixing with charge air upstream of a compressor. 1. A system , comprising:an intake passage comprising a barrier configured to fluidly separate a first portion from a second portion;a LP-EGR passage configured to flow EGR to only the second portion; anda flap arranged in the second portion upstream of an outlet of the LP-EGR.2. The system of claim 1 , wherein the second portion is larger than the first portion.3. The system of claim 1 , wherein the barrier is upstream of a compressor relative to a direction of intake air flow.4. The system of claim 1 , wherein the first portion and the second portion merge directly upstream of a compressor.5. The system of claim 1 , wherein a controller comprises computer-readable instructions stored on non-transitory memory that when executed enable the controller to actuate the flap to a fully open position to flow charge air through the second portion.6. The system of claim 5 , wherein the instructions further enable the controller to actuate an EGR valve to an open position to flow LP-EGR to the second portion.7. A method claim 5 , comprising:flowing charge air through only a first portion of an intake passage and LP-EGR through only a second portion of the intake passage when a LP-EGR temperature is less than a lower threshold temperature.8. The method of claim 7 , wherein the first portion is hermetically sealed from the second portion via a barrier arranged downstream of a throttle and upstream of a compressor.9. The method of claim 7 , further comprising adjusting a flap configured to adjust charge air flow through the second portion claim 7 , wherein adjusting the flap comprises adjusting the flap from a fully closed position to a fully open position in response to an engine load being greater than or equal to a threshold ...

Control device for an internal combustion engine

Control devices for internal combustion engines are known, comprising an intake channel (12) having an inlet (14) and an outlet (20), an exhaust gas return channel (16) which feeds into the intake channel (12), a control element (46), an opening (18) of the exhaust gas return channel (16) which functions as a fixed valve seat (58) for the control element (46) in the state closing the exhaust gas return channel (16), and a shaft (42) functioning as the axis of rotation (44) of the control element (46), on which the control element (46) is eccentrically secured, wherein the control element (46) can be moved, by rotating the shaft (42), between a first end position in which the control element (46) at least throttles the intake channel (12), and a second end position in which the control element (46) is in contact with the valve seat (58) at the opening (18) of the exhaust gas return channel (16). According to the invention, in order to reduce the wear in the region of the valve seat, the axis of rotation (44) of the shaft (42) is arranged in a plane (60) passing through the valve seat (58) at the opening (18) of the exhaust gas return channel (16).

External turbine bypass for rapid heating of the catalyst

Ein Abgasstrang (4) mit einem Abgaskrümmer (8), der eine Mehrzahl von mit Abgasventilen eines Verbrennungsmotors (2) verbundenen oder verbindbaren Abgaszuleitungen, eine erste Abgasableitung (9) und eine zweite Abgasableitung (10) besitzt, einer Abgasturbine (11), die einen mit der ersten Abgasableitung (9) verbundenen Abgaseinlass und einen Abgasauslass (14) besitzt, und einer mit dem Abgasauslass (14) der Abgasturbine (11) und der zweiten Abgasableitung (10) verbundenen Abgasnachbehandlungsvorrichtung (13), die ein Katalysatorsubstrat (17) mit einer dem Abgasauslass (14) der Abgasturbine (11) und der zweiten Abgasableitung (10) zugewandte Stirnseite aufweist, dadurch gekennzeichnet, dass eine parallel der Stirnseite ausgerichtete erste Querschnittsfläche (20) einer Mündung der zweiten Abgasableitung (10) zwischen 15 und 35 Prozent einer parallel der Stirnseite ausgerichteten zweiten Querschnittsfläche (19) einer Mündung des Abgasauslasses (14) der Abgasturbine (11) misst.  An exhaust gas line (4) having an exhaust manifold (8), which has a plurality of exhaust gas supply lines connected or connectable with exhaust valves of an internal combustion engine (2), a first exhaust gas discharge line (9) and a second exhaust gas discharge line (10), an exhaust gas turbine (11) an exhaust gas inlet and an exhaust gas outlet (14) connected to the first exhaust gas discharge line (9), and an exhaust gas after-treatment device (13) connected to the exhaust gas outlet (14) of the exhaust gas turbine (11) and the second exhaust gas discharge line (10) and containing a catalyst substrate (17) with a front side facing the exhaust gas outlet (14) of the exhaust gas turbine (11) and the second exhaust gas outlet (10), characterized in that a first cross-sectional area (20) aligned parallel to the end face of an outlet of the second exhaust gas discharge line (10) is between 15 and 35 percent a parallel to the end face oriented second cross-sectional area (19) of an opening of the ...

Regulating device for an internal combustion engine

Control device for an internal combustion engine

Control devices for internal combustion engines are known, comprising an intake channel (12), an exhaust gas return channel (16) which feeds into the intake channel (12), a rotatable control element (42) for closing the intake channel (12) and the exhaust gas return channel (16), a mixing chamber (10) in which the intake channel (12) is formed, and which has an opening (14) of the exhaust gas return channel (16) in the lower region in relation to the ground surface. According to the invention, in order to protect a subsequent compressor against damages caused by liquid, condensed water with the restarting of the internal combustion engine, the intake channel (12) has a cross-sectional widening (54) all around in a downstream region, via which an impact surface (56) is formed on a mixing chamber section (53), with which a connection element (66) is in contact, and via which connection element a inlet channel (64) of a downstream compressor (62), limited by a connection piece (60), is fluidically connected to an outlet (58) of the mixing chamber (10), wherein the mixing chamber section (53) has a recess (80) at least at the deepest point thereof in relation to the ground surface and in comparison to the cross-sectional shape of the connection element (66), which recess is arranged below an axially opposite inner wall surface (63, 76) radially limiting the connection element (66) on the impact surface (56), and which recess feeds into a trough-shaped depression (82) of the mixing chamber (10).

Compressor, exhaust gas turbocharger and motor vehicle with an internal combustion engine

Die Erfindung betrifft einen neuartigen Verdichter (10) für einen Verbrennungsmotor (3), der ein Verdichtergehäuse (13) und ein um eine Rotationsachse (14) drehbar gelagertes Verdichterrad (11) aufweist. Das Verdichtergehäuse (13) besitzt einen spiralförmig um das Verdichterrad (11) verlaufenden Verdichterluftkanal (16), der dazu ausgebildet ist, Verdichterluft von dem Verdichterrad (11) wegzuleiten. Erfindungsgemäß weist der Verdichterluftkanal (16) wenigstens eine radial außenliegende Trennwand (15) auf, die den Verdichterluftkanal (16) in eine erste Verdichterschnecke (18) und eine zweite Verdichterschnecke (19) unterteilt. Außerdem ist in einer ausgewählten Verdichterschnecke (18, 19) der ersten und zweiten Verdichterschnecke (18, 19) eine Verschlussvorrichtung (21, 23) angeordnet, die dazu ausgebildet ist, die ausgewählte Verdichterschnecke (18, 19) auf ein Steuersignal hin zu verschließen. Weitere Aspekte der Erfindung betreffen einen Abgasturbolader (6) und ein Kraftfahrzeug (1) mit einem solchen Verdichter (10). The invention relates to a novel compressor (10) for an internal combustion engine (3), which has a compressor housing (13) and a compressor wheel (11) rotatably mounted about an axis of rotation (14). The compressor housing (13) has a compressor air passage (16) extending spirally around the compressor wheel (11) and adapted to direct compressor air away from the compressor wheel (11). According to the invention, the compressor air duct (16) has at least one radially outer partition wall (15) which divides the compressor air duct (16) into a first compressor screw (18) and a second compressor screw (19). In addition, in a selected compressor screw (18, 19) of the first and second compressor screw (18, 19) a closure device (21, 23) is arranged, which is adapted to close the selected compressor screw (18, 19) in response to a control signal. Further aspects of the invention relate to an exhaust gas turbocharger (6) and a motor vehicle (1) with such a ...

Motor vehicle and air filter box

Es wird ein Kraftfahrzeug (10) bereitgestellt, das einen Motor (11), einen Zuluftstrang (12) zur Versorgung des Motors (11) mit Zuluft (30), einen im Zuluftstrang (12) angeordneten Verdichter (15) sowie einen im Zuluftstrang (12) stromaufwärts des Verdichters (15) angeordneten Drallerzeuger (17) umfasst. Der Drallerzeuger weist (17) zumindest eine Leitschaufel (27) zur Erzeugung eines Dralls in der Zuluft (30) und einen Drallerzeuzerausgang (29) mit einem ersten Radius (22) auf. Der Verdichter (15) weist einen Verdichtereingang (19) mit einem zweiten Radius (23), der kleiner als der erste Radius (22) ist, auf. Erfindungsgemäß mündet stromabwärts des Drallerzeugerausgangs (29) und stromaufwärts des Verdichtereingangs (19) eine Abgasrückführungsleitung (20). Zudem wird eine Luftfilterbox (18) mit dem Drallerzeuger (17) beansprucht. A motor vehicle (10) is provided which has a motor (11), a supply air line (12) for supplying the engine (11) with supply air (30), a compressor (15) arranged in the supply air line (12) and a supply air line ( 12) upstream of the compressor (15) arranged swirl generator (17). The swirl generator has (17) at least one guide vane (27) for generating a swirl in the supply air (30) and a swirl generator output (29) with a first radius (22). The compressor (15) has a compressor inlet (19) with a second radius (23) which is smaller than the first radius (22) on. According to the invention, an exhaust gas recirculation line (20) opens downstream of the swirl generator outlet (29) and upstream of the compressor inlet (19). In addition, an air filter box (18) with the swirl generator (17) is claimed.

Radial turbocharger comprising a swirl generator

Methods and systems are provided for a swirl generating device upstream of a compressor including a method, a system, and an apparatus for actuating the swirl generating device, which is located in a ring-shaped duct, adjust a swirl of air flowing through the ring-shaped duct to the compressor in response to engine operating conditions.

Charged internal combustion engine with exhaust gas turbochargers arranged in series

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (1) zum Abführen des Abgases, – mindestens einer Abgasrückführung, und – mindestens zwei in Reihe geschalteten Abgasturboladern (2, 4), die jeweils eine im Abgasabführsystem (1) angeordnete Turbine (2a, 4a) und einen im Ansaugsystem angeordneten Verdichter (3, 5) umfassen und von denen ein erster Abgasturbolader (2) als Niederdruckstufe (2) und ein zweiter Abgasturbolader (4) als Hochdruckstufe (4) dient, wobei die zweite Turbine (4a) des zweiten Abgasturboladers (4) stromaufwärts der ersten Turbine (2a) des ersten Abgasturboladers (2) angeordnet ist. Es soll eine aufgeladene Brennkraftmaschine der oben genannten Art bereitgestellt werden, mit der die aus dem Stand der Technik bekannten Nachteile überwunden werden und deren Aufladeverhalten verbessert ist. Erreicht wird dies durch eine Brennkraftmaschine der oben genannten Art, die dadurch gekennzeichnet ist, dass – die zweite Turbine (4a) eine Radialturbine (4a) ist, deren Austrittsbereich (4f) koaxial zur Welle (4c) der Radialturbine (4a) verläuft und ausgebildet ist, so dass die Abströmung des Abgases aus der Radialturbine (4a) im Wesentlichen axial erfolgt, und – die erste Turbine (2a) eine Axialturbine (2a) ist, deren Eintrittsbereich (2e) koaxial zur Welle (2c) der Axialturbine (2a) und koaxial zum Austrittsbereich (4f) der zweiten Turbine (4a) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases zur Axialturbine (2a) im Wesentlichen axial erfolgt. The invention relates to a supercharged internal combustion engine having - an intake system for supplying charge air, - an exhaust gas removal system (1) for discharging the exhaust gas, - at least one exhaust gas recirculation, and - at least two exhaust gas turbochargers (2, 4) connected in series, each one in the Abgasabführsystem (1) arranged turbine (2a, 4a) and arranged in the intake compressor (3, 5) comprise ...

Supercharged internal combustion engine with exhaust gas turbocharger and additional compressor and method for operating such an internal combustion engine

Aufgeladene Brennkraftmaschine mit- einem Ansaugsystem (1) zum Zuführen von Ladeluft,- einem Abgasabführsystem zum Abführen von Abgas, und- mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine (4) und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei der Verdichter (3) mit mindestens einem in einem Verdichtergehäuse (3e) auf einer drehbaren Welle (3c) gelagerten Laufrad (3d) ausgestattet ist, wobei- ein elektrisch antreibbarer zweiter Verdichter (5) stromaufwärts des Verdichters (3) des mindestens einen Abgasturboladers (2) im Ansaugsystem (1) angeordnet ist, wobei der zweite Verdichter (5) mindestens ein in einem Verdichtergehäuse (5e) auf einer drehbaren Welle (5c) gelagertes Laufrad (5d) umfasst und ein Axialverdichter (5b) ist, dessen Austrittsbereich (5a) koaxial zur Welle (5c) des zweiten Verdichters (5) verläuft, so dass die Abströmung der Ladeluft aus dem zweiten Verdichter (5) via Austrittsbereich (5a) im Wesentlichen axial erfolgt, wobei- der elektrisch antreibbare zweite Verdichter (5) als zuschaltbarer Verdichter (5) ausgebildet ist, dadurch gekennzeichnet, dass- der Verdichter (3) des mindestens einen Abgasturboladers (2) einen Eintrittsbereich (3a) aufweist, der koaxial zur Welle (3c) des Verdichters (3) und koaxial zum Austrittsbereich (5a) des zweiten Verdichters (5) verläuft und ausgebildet ist, so dass die Anströmung der Ladeluft zu dem Verdichter (3) des mindestens einen Abgasturboladers (2) im Wesentlichen axial erfolgt,- der zweite Verdichter (5) auf größere Volumenströme ausgelegt ist als der Verdichter (3) des mindestens einen Abgasturboladers (2), und- zum Zwecke der Abgasabblasung eine dritte Bypassleitung vorgesehen ist, die stromaufwärts der Turbine (4) vom Abgasabführsystem abzweigt. Supercharged internal combustion engine with- an intake system (1) for supplying charge air,- an exhaust gas discharge system for discharging exhaust gas, and- at least one exhaust gas turbocharger (2) ...

Supercharged internal combustion engine with exhaust gas turbocharger and method for operating such an internal combustion engine

Aufgeladene Brennkraftmaschine mit- einem Ansaugsystem (1) zum Zuführen von Ladeluft,- einem Abgasabführsystem zum Abführen von Abgas, und- mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine (4) und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei der Verdichter (3) mit mindestens einem in einem Verdichtergehäuse (3e) auf einer drehbaren Welle (3c) gelagerten Laufrad (3d) ausgestattet ist,- wobei ein elektrisch antreibbarer zweiter Verdichter (5) stromaufwärts des Verdichters (3) des mindestens einen Abgasturboladers (2) im Ansaugsystem (1) angeordnet ist, wobei der zweite Verdichter (5) mindestens ein in einem Verdichtergehäuse (5e) auf einer drehbaren Welle (5c) gelagertes Laufrad (5d) umfasst und ein Axialverdichter (5b) ist, dessen Austrittsbereich (5a) koaxial zur Welle (5c) des zweiten Verdichters (5) verläuft, so dass die Abströmung der Ladeluft aus dem zweiten Verdichter (5) via Austrittsbereich (5a) im Wesentlichen axial erfolgt,- der Verdichter (3) des mindestens einen Abgasturboladers (2) einen Eintrittsbereich (3a) aufweist, der koaxial zur Welle (3c) des Verdichters (3) und koaxial zum Austrittsbereich (5a) des zweiten Verdichters (5) verläuft und ausgebildet ist, so dass die Anströmung der Ladeluft zu dem Verdichter (3) des mindestens einen Abgasturboladers (2) im Wesentlichen axial erfolgt,- sich ein zwischen dem Austrittsbereich (5a) des zweiten Verdichters (5) und dem Eintrittsbereich (3a) des Verdichters (3) des mindestens einen Abgasturboladers (2) vorgesehener Abschnitt (6) des Ansaugsystems (1) verjüngt, und- der elektrisch antreibbare zweite Verdichter (5) als zuschaltbarer Verdichter (5) ausgebildet ist. Supercharged internal combustion engine with- an intake system (1) for supplying charge air,- an exhaust gas discharge system for discharging exhaust gas, and- at least one exhaust gas turbocharger (2) which has a turbine (4) arranged in the exhaust gas discharge system and a compressor ...

Charged combustion engine with a double-flow turbine and method for operating such a combustion engine

Supercharged internal combustion engine with compressor and method for operating such an internal combustion engine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (2) zum Zuführen von Ladeluft, – einem Abgasabführsystem zum Abführen des Abgases, und – mindestens einem Verdichter (1), der im Ansaugsystem (2) angeordnet ist und der mindestens ein in einem Verdichtergehäuse (1b) auf einer drehbaren Welle (1a) angeordnetes und mit Laufschaufeln (1d) ausgestattetes Laufrad (1c) umfasst, wobei stromaufwärts des mindestens einen Laufrades (1c) ein Eintrittsbereich (1e) vorgesehen ist, der koaxial zur Welle (1a) des Verdichters (1) verläuft und ausgebildet ist. Es soll eine aufgeladene Brennkraftmaschine der oben genannten Art bereitgestellt werden, deren Aufladeverhalten bei kleinen Ladeluftmengen verbessert ist. Erreicht wird dies durch eine Brennkraftmaschine der oben genannten Art, die dadurch gekennzeichnet ist, dass – sich das Ansaugsystem (2) stromaufwärts des mindestens einen Laufrades (1c) unter Ausbildung eines trichterförmigen Abschnitts (4) zu dem mindestens einen Laufrad (1c) hin erweitert, und – ein hülsenförmiges Leitelement (3) vorgesehen ist, das unter Ausbildung eines schmalen Spaltes in dem trichterförmigen Abschnitt (4) und koaxial zur Welle (1a) des mindestens einen Verdichters (1) translatorisch verschiebbar ist. The invention relates to a supercharged internal combustion engine with - an intake system (2) for supplying charge air, - a Abgasabführsystem for discharging the exhaust gas, and - at least one compressor (1) which is arranged in the intake system (2) and the at least one in a compressor housing (1b) arranged on a rotatable shaft (1a) and equipped with blades (1d) impeller (1c), wherein upstream of the at least one impeller (1c) an inlet region (1e) is provided, which is coaxial with the shaft (1a) of the compressor (1) runs and is formed. It is to be provided a supercharged internal combustion engine of the above type, the charging behavior is improved at small charge air quantities. This is achieved by an internal ...

Supercharged internal combustion engine with mixed-flow turbine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (2) zum Abführen des Abgases, und – mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5) eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung (9) verdrehbare Leitschaufeln (8a) umfasst, wobei die Verstelleinrichtung (9) über einen verdrehbaren Verstellring (9a) verfügt, der koaxial zur Turbinenwelle (4) der Mixed-Flow-Turbine (1) gelagert ist, und jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist. Es soll eine Brennkraftmaschine der oben genannten Art bereitgestellt werden, mit der die aus dem Stand der Technik bekannten Nachteile überwunden werden und deren variable Mixed-Flow-Turbine (1) über eine verbesserte Verstelleinrichtung (9) bzw. Leiteinrichtung (8) verfügt. Erreicht wird dies durch eine Brennkraftmaschine der oben genannten Art, die dadurch gekennzeichnet ist, dass – der verdrehbare Verstellring (9a) eine Außenverzahnung (9b) aufweist, und – auf jeder leitschaufelzugehörigen Welle (8b) ein Zahnrad (8c) angeordnet ist, welches sich in Eingriff befindet mit der Außenverzahnung (9b) des Verstellrings (9a), so dass die Leitschaufeln (8a) mittels Verdrehen des Verstellrings (9a) verstellbar sind. The invention relates to a supercharged internal combustion engine with - an intake system for supplying charge air, - a Abgasabführsystem (2) for discharging the exhaust gas, and - at least one in Abgasabführsystem (2) arranged mixed-flow turbine (1), the at least one in a Turbine housing (3) arranged and on a rotatable turbine shaft (4) mounted impeller (5) and wherein the ...

Charged internal combustion engine with exhaust gas turbocharger and method for operating such an internal combustion engine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (1) zum Zuführen von Ladeluft, – einem Abgasabführsystem zum Abführen von Abgas, und – mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine (4) und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei der Verdichter (3) mit mindestens einem in einem Verdichtergehäuse (3e) auf einer drehbaren Welle (3c) gelagerten Laufrad (3d) ausgestattet ist, wobei – ein elektrisch antreibbarer zweiter Verdichter (5) stromaufwärts des Verdichters (3) des mindestens einen Abgasturboladers (2) im Ansaugsystem (1) angeordnet ist, wobei der zweite Verdichter (5) mindestens ein in einem Verdichtergehäuse (5e) auf einer drehbaren Welle (5c) gelagertes Laufrad (5d) umfasst und ein Axialverdichter (5b) ist, dessen Austrittsbereich (5a) koaxial zur Welle (5c) des zweiten Verdichters (5) verläuft, so dass die Abströmung der Ladeluft aus dem zweiten Verdichter (5) via Austrittsbereich (5a) im Wesentlichen axial erfolgt, – der Verdichter (3) des mindestens einen Abgasturboladers (2) einen Eintrittsbereich (3a) aufweist, der koaxial zur Welle (3c) des Verdichters (3) und koaxial zum Austrittsbereich (5a) des zweiten Verdichters (5) verläuft und ausgebildet ist, so dass die Anströmung der Ladeluft zu dem Verdichter (3) des mindestens einen Abgasturboladers (2) im Wesentlichen axial erfolgt, und – der elektrisch antreibbare zweite Verdichter (5) als zuschaltbarer Verdichter (5) ausgebildet ist. The invention relates to a supercharged internal combustion engine having an intake system (1) for supplying charge air, an exhaust gas removal system for discharging exhaust gas, and at least one exhaust gas turbocharger (2) having a turbine (4) arranged in the exhaust gas removal system and one in the intake system (1 The compressor (3) is equipped with at least one impeller (3d) mounted in a compressor housing (3e) on a rotatable shaft (3c), wherein - an electrically ...

Internal combustion engine with mixed-flow turbine

Die Erfindung betrifft eine Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (2) zum Abführen des Abgases, und – mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5) eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung (9) verdrehbare Leitschaufeln (8a) umfasst, wobei die Verstelleinrichtung (9) über einen verdrehbaren Verstellring (9a) verfügt, der koaxial zur Turbinenwelle (4) der Mixed-Flow-Turbine (1) gelagert ist, und jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist. Es soll eine Brennkraftmaschine der oben genannten Art bereitgestellt werden, mit der die aus dem Stand der Technik bekannten Nachteile überwunden werden und deren variable Mixed-Flow-Turbine (1) über eine verbesserte Verstelleinrichtung (9) bzw. Leiteinrichtung (8) verfügt. Erreicht wird dies durch eine Brennkraftmaschine der oben genannten Art, die dadurch gekennzeichnet ist, dass – der verdrehbare Verstellring (9a) eine Außenverzahnung (9b) aufweist, und – auf jeder leitschaufelzugehörigen Welle (8b) ein Zahnrad (8c) angeordnet ist, welches sich in Eingriff befindet mit der Außenverzahnung (9b) des Verstellrings (9a), so dass die Leitschaufeln (8a) mittels Verdrehen des Verstellrings (9a) verstellbar sind. The invention relates to an internal combustion engine with - an intake system for supplying charge air, - a Abgasabführsystem (2) for discharging the exhaust gas, and - at least one in Abgasabführsystem (2) arranged mixed-flow turbine (1), the at least one in a turbine housing (3) arranged and on a rotatable turbine shaft (4) mounted impeller (5) and wherein the turbine housing (3) has an ...

Internal combustion engine with variable mixed-flow turbine

Die Erfindung betrifft eine Brennkraftmaschine mit einem Ansaugsystem zum Zuführen von Ladeluft, einem Abgasabführsystem (2) zum Abführen des Abgases und mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5) eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung (9) verdrehbare Leitschaufeln (8a) umfasst, wobei – die Verstelleinrichtung (9) über einen verdrehbaren Verstellring (9a) verfügt, der koaxial zur Turbinenwelle (4) der Mixed-Flow-Turbine (1) gelagert ist, – jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist, und – verschwenkbare Hebel (8c) als Zwischenelemente zur kinematischen Koppelung des Verstellringes (9a) mit den leitschaufelzugehörigen Wellen (8b) vorgesehen sind, die jeweils an ihrem einen wellenseitigen Ende (8c´) verdrehfest mit einer leitschaufelzugehörigen Welle (8b) verbunden sind und an ihrem anderen ringseitigen Ende (8c´´) beweglich in einer Ausnehmung (9b) des Verstellringes (9a) gelagert sind, so dass die Leitschaufeln (8a) mittels Verdrehen des Verstellrings (9a) verstellbar sind, wobei – jede leitschaufelzugehörige Welle (8b) geradlinig ausgebildet ist, – die verschwenkbaren Hebel (8c) um einen spitzen Winkel γ gekröpft sind, und – die verschwenkbaren Hebel (8c) ausgehend vom Verstellring (9a) nach außen gerichtet sind. The invention relates to an internal combustion engine having an intake system for supplying charge air, an exhaust gas removal system (2) for discharging the exhaust gas and at least one mixed-flow turbine (1) arranged in the exhaust gas removal system (2) and having at least one turbine housing (3) and on a rotatable turbine shaft (4) mounted impeller (5) and wherein the ...

Charged internal combustion engine with exhaust gas turbochargers arranged in series

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (1) zum Abführen des Abgases, und – mindestens zwei in Reihe geschalteten Abgasturboladern (2, 4), die jeweils eine im Abgasabführsystem (1) angeordnete Turbine (2a, 4a) und einen im Ansaugsystem angeordneten Verdichter (3, 5) umfassen und von denen ein erster Abgasturbolader (2) als Niederdruckstufe (2) und ein zweiter Abgasturbolader (4) als Hochdruckstufe (4) dient, wobei die zweite Turbine (4a) des zweiten Abgasturboladers (4) stromaufwärts der ersten Turbine (2a) des ersten Abgasturboladers (2) angeordnet ist. Es soll eine aufgeladene Brennkraftmaschine der oben genannten Art bereitgestellt werden, mit der die aus dem Stand der Technik bekannten Nachteile überwunden werden und deren Aufladeverhalten verbessert ist. Erreicht wird dies durch eine Brennkraftmaschine der oben genannten Art, die dadurch gekennzeichnet ist, dass – die zweite Turbine (4a) eine Radialturbine (4a) ist, deren Austrittsbereich (4f) koaxial zur Welle (4c) der Radialturbine (4a) verläuft und ausgebildet ist, so dass die Abströmung des Abgases aus der Radialturbine (4a) im Wesentlichen axial erfolgt, und – die erste Turbine (2a) eine Axialturbine (2a) ist, deren Eintrittsbereich (2e) koaxial zur Welle (2c) der Axialturbine (2a) und koaxial zum Austrittsbereich (4f) der zweiten Turbine (4a) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases zur Axialturbine (2a) im Wesentlichen axial erfolgt. The invention relates to a supercharged internal combustion engine having - an intake system for supplying charge air, - an exhaust gas removal system (1) for discharging the exhaust gas, and - at least two exhaust gas turbochargers (2, 4) connected in series, each having a turbine arranged in the exhaust gas removal system (1) (2a, 4a) and a compressor arranged in the intake system (3, 5) and of which a first exhaust gas turbocharger (2) as a low pressure ...

Charged internal combustion engine with double-flow turbine and grouped cylinders

Aufgeladene Brennkraftmaschine mit mindestens einem Zylinderkopf mit mindestens zwei Zylindern, bei der – jeder Zylinder mindestens eine Auslassöffnung zum Abführen der Abgase aus dem Zylinder via Abgasabführsystem aufweist und sich an jede Auslassöffnung eine Abgasleitung anschließt, – mindestens zwei Zylinder in der Art konfiguriert sind, dass diese zwei Gruppen mit jeweils mindestens einem Zylinder bilden, – die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers jeweils zu einer Gesamtabgasleitung zusammenführen, – mindestens ein Abgasturbolader vorgesehen ist, der eine im Abgasabführsystem angeordnete zweiflutige Turbine (1) umfasst, – mindestens eine Abgasrückführung vorgesehen ist, und – die beiden Gesamtabgasleitungen mit der zweiflutigen Turbine (1), die mindestens ein in einem Turbinengehäuse (2) auf einer drehbaren Welle (4) gelagertes und mit Laufschaufeln ausgestattetes Laufrad (3) umfasst, in der Art in einem Eintrittsbereichs (2a) des Turbinengehäuses (2) verbunden sind, dass jeweils eine Gesamtabgasleitung mit einer der zwei Fluten (5, 6) der Turbine (1) verbunden ist, wobei die zwei Fluten (5, 6) – in Fortsetzung der Gesamtabgasleitungen – bis hin zu dem mindestens einen Laufrad (3) mittels mindestens einer Gehäusewandung (2c) voneinander getrennt sind und damit auch die Abgasabführsysteme der Zylindergruppen, wobei – die Turbine (1) eine zweiflutige Axialturbine (1) ist, und – der Eintrittsbereich (2a) des Turbinengehäuses (2) koaxial zur Welle (4) der Axialturbine (1) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases im Eintrittsbereich (2a) der Turbine (1) im Wesentlichen axial erfolgt.

Charged internal combustion engine with double-flow turbine and grouped cylinders

Brennkraftmaschine mit min. einem Zylinderkopf mit min. zwei Zylindern, bei der – jeder Zylinder min. eine Auslassöffnung aufweist, an die sich eine Abgasleitung anschließt, – min. zwei Zylinder in der Art konfiguriert sind, dass diese zwei Gruppen mit jeweils min. einem Zylinder bilden, – die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers jeweils zu einer Gesamtabgasleitung zusammenführen, – min. ein Abgasturbolader vorgesehen ist, der eine zweiflutige Turbine (1) umfasst, und – die beiden Gesamtabgasleitungen mit der zweiflutigen Turbine (1), in der Art in einem Eintrittsbereichs (2a) des Turbinengehäuses (2) verbunden sind, dass jeweils eine Gesamtabgasleitung mit einer der zwei Fluten (5, 6) der Turbine (1) verbunden ist, wobei die zwei Fluten (5, 6) – in Fortsetzung der Gesamtabgasleitungen – bis hin zu dem min. einen Laufrad (3) mittels min. einer Gehäusewandung (2c) voneinander getrennt sind und damit auch die Abgasabführsysteme der Zylindergruppen, wobei – die Turbine (1) eine zweiflutige Axialturbine (1) ist, und – der Eintrittsbereich (2a) des Turbinengehäuses (2) koaxial zur Welle (4) der Axialturbine (1) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases im Eintrittsbereich (2a) der Turbine (1) im Wesentlichen axial erfolgt, und – die min. eine Gehäusewandung (2c) laufradseitig zumindest abschnittsweise schraubenförmig ausgebildet ist. Internal combustion engine with min. a cylinder head with min. two cylinders, in which - each cylinder min. has an outlet opening, which is followed by an exhaust pipe, - min. two cylinders are configured in such a way that these two groups each with min. form a cylinder, - merge the exhaust gas lines of the cylinders of each cylinder group with the formation of an exhaust manifold to form an overall exhaust gas line, - min. an exhaust gas turbocharger is provided, which comprises a double-flow turbine (1), and - the two total exhaust gas lines with the twin-flow turbine ...

Internal combustion engine with mixed-flow turbine comprising a guide

Die Erfindung betrifft eine Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (2) zum Abführen des Abgases, und – mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5), welches Laufschaufeln (5a) umfasst, eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung verdrehbare Leitschaufeln (8a) umfasst, wobei jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist, wobei – jede leitschaufelzugehörige Welle (8b) parallel zur Turbinenwelle (4) verläuft, – jede Laufschaufel (5a) des mindestens einen Laufrades (5) eine Anströmkante (5b) aufweist, die mit der Turbinenwelle (4) einen spitzen Winkel αrot bildet, und – jede Leitschaufel (8a) laufradseitig eine Abströmkante (8c) aufweist, die benachbart und beabstandet zur Anströmkante (5b) jeder Laufschaufel (5a) verläuft und mit der Turbinenwelle (4) einen spitzen Winkel αguide,out bildet. The invention relates to an internal combustion engine with - an intake system for supplying charge air, - a Abgasabführsystem (2) for discharging the exhaust gas, and - at least one in Abgasabführsystem (2) arranged mixed-flow turbine (1), the at least one in a turbine housing (3) arranged and mounted on a rotatable turbine shaft (4) mounted impeller (5) and wherein the turbine housing (3) has an inlet region (6), in which upstream of the at least one impeller (5), which comprises blades (5a) an adjustable guide (8) is arranged, which comprises adjustable rotatable vanes (8a) by means of adjusting means, each vane (8a) being arranged on a guide vane-associated shaft (8b), - each vane-associated shaft (8b) being parallel to the turbine shaft (4) runs, - ...

Charged internal combustion engine with double-flow turbine and grouped cylinders

Brennkraftmaschine mit min. einem Zylinderkopf mit min. zwei Zylindern, bei der – jeder Zylinder min. eine Auslassöffnung aufweist und an die sich eine Abgasleitung anschließt, – min. zwei Zylinder in der Art konfiguriert sind, dass diese zwei Gruppen mit jeweils min. einem Zylinder bilden, – die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers jeweils zu einer Gesamtabgasleitung zusammenführen, – min. ein Abgasturbolader vorgesehen ist, der eine im Abgasabführsystem angeordnete zweiflutige Turbine (1) umfasst, und – die beiden Gesamtabgasleitungen mit der zweiflutigen Turbine (1), die min. ein in einem Turbinengehäuse (2) auf einer drehbaren Welle (4) gelagertes und mit Laufschaufeln ausgestattetes Laufrad (3) umfasst, die derart in einem Eintrittsbereichs (2a) des Turbinengehäuses (2) verbunden sind, dass jeweils eine Gesamtabgasleitung mit einer der zwei Fluten (5, 6) der Turbine (1) verbunden ist, wobei die zwei Fluten (5, 6) – in Fortsetzung der Gesamtabgasleitungen – bis hin zu dem mindestens einen Laufrad (3) mittels mindestens einer Gehäusewandung (2c) voneinander getrennt sind und damit auch die Abgasabführsysteme der Zylindergruppen, wobei – die Turbine (1) eine zweiflutige Axialturbine (1) ist, und – der Eintrittsbereich (2a) des Turbinengehäuses (2) koaxial zur Welle (4) der Axialturbine (1) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases im Eintrittsbereich (2a) der Turbine (1) im Wesentlichen axial erfolgt. Internal combustion engine with min. a cylinder head with min. two cylinders, in which - each cylinder min. has an outlet opening and to which an exhaust pipe connects, - min. two cylinders are configured in such a way that these two groups each with min. form a cylinder, - merge the exhaust gas lines of the cylinders of each cylinder group with the formation of an exhaust manifold to form an overall exhaust gas line, - min. an exhaust-gas turbocharger is provided, which comprises a double-flow ...

Internal combustion engine with mixed-flow turbine comprising a guide and exhaust gas recirculation

Die Erfindung betrifft eine Brennkraftmaschine mit – einem Ansaugsystem zum Zuführen von Ladeluft, – einem Abgasabführsystem (2) zum Abführen des Abgases, – einer Abgasrückführung, und – mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5), welches Laufschaufeln (5a) umfasst, eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung verdrehbare Leitschaufeln (8a) umfasst, wobei jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist, wobei – jede leitschaufelzugehörige Welle (8b) parallel zur Turbinenwelle (4) verläuft, – jede Laufschaufel (5a) des mindestens einen Laufrades (5) eine Anströmkante (5b) aufweist, die mit der Turbinenwelle (4) einen spitzen Winkel αrot bildet, und – jede Leitschaufel (8a) laufradseitig eine Abströmkante (8c) aufweist, die benachbart und beabstandet zur Anströmkante (5b) jeder Laufschaufel (5a) verläuft und mit der Turbinenwelle (4) einen spitzen Winkel αguide,out bildet. The invention relates to an internal combustion engine with - an intake system for supplying charge air, - a Abgasabführsystem (2) for discharging the exhaust gas, - exhaust gas recirculation, and - at least one in Abgasabführsystem (2) arranged mixed-flow turbine (1), the at least an impeller (5) arranged in a turbine housing (3) and supported on a rotatable turbine shaft (4) and in which the turbine housing (3) has an inlet region (6) in which upstream of the at least one impeller (5) which blades (5a), an adjustable guide (8) is arranged, which comprises rotatable vanes (8a) by means of adjusting, wherein each guide vane (8a) on a guide vane associated shaft (8b) is arranged, wherein - each vane associated shaft (8b) ...

Charged internal combustion engine with double-flow turbine and grouped cylinders

Brennkraftmaschine mit min. einem Zylinderkopf mit min. zwei Zylindern, bei der – jeder Zylinder min. eine Auslassöffnung aufweist an die sich eine Abgasleitung anschließt, – min. zwei Zylinder in der Art konfiguriert sind, dass diese zwei Gruppen mit jeweils min. einem Zylinder bilden, – die Abgasleitungen der Zylinder jeder Zylindergruppe unter Ausbildung eines Abgaskrümmers jeweils zu einer Gesamtabgasleitung zusammenführen, – min ein Abgasturbolader vorgesehen ist, der eine zweiflutige Turbine (1) umfasst, – mit min. einer AGR – die beiden Gesamtabgasleitungen mit der zweiflutigen Turbine (1), in der Art in einem Eintrittsbereichs (2a) des Turbinengehäuses (2) verbunden sind, dass jeweils eine Gesamtabgasleitung mit einer der zwei Fluten (5, 6) der Turbine (1) verbunden ist, wobei die zwei Fluten (5, 6) – in Fortsetzung der Gesamtabgasleitungen – bis hin zu dem min. einen Laufrad (3) mittels min. einer Gehäusewandung (2c) voneinander getrennt sind und damit auch die Abgasabführsysteme der Zylindergruppen, wobei – die Turbine (1) eine zweiflutige Axialturbine (1) ist, und – der Eintrittsbereich (2a) des Turbinengehäuses (2) koaxial zur Welle (4) der Axialturbine (1) verläuft und ausgebildet ist, so dass die Zuströmung des Abgases im Eintrittsbereich (2a) der Turbine (1) im Wesentlichen axial erfolgt, und – die min. eine Gehäusewandung (2c) laufradseitig zumindest abschnittsweise schraubenförmig ausgebildet ist. Internal combustion engine with min. a cylinder head with min. two cylinders, in which - each cylinder min. an outlet opening adjoins an exhaust pipe, - min. two cylinders are configured in such a way that these two groups each with min. form a cylinder, - merge the exhaust gas lines of the cylinders of each cylinder group to form an exhaust manifold to form an overall exhaust gas line, - an exhaust gas turbocharger is provided which comprises a twin-flow turbine (1), - with min. an EGR - the two total exhaust gas lines with the twin-flow turbine (1), in ...

Supercharged internal combustion engine with exhaust-gas turbochargers arranged in series and method for operating an internal combustion engine of said type

A supercharged internal combustion engine, comprising a high-pressure turbine connected to a channel of a low-pressure turbine and a bypass line, branching from upstream the high-pressure turbine, connectable to the channels of the low-pressure turbine via a control element positioned within the bypass line, is provided. Adjusting the control element fluidly connects each of the channels of the low-pressure turbine to the bypass line responsive to the exhaust-gas flow rate to optimize the performance of the engine.

Supercharged internal combustion engine with segmented twin-flow turbine

Aufgeladene Brennkraftmaschine mit min. einem Zylinderkopf (9) mit min. zwei Zylindern (10), bei der – jeder Zylinder (10) min. eine Auslassöffnung aufweist – min. zwei Zylinder (10) in der Art konfiguriert sind, dass diese zwei Gruppen mit jeweils min. einem Zylinder (10) bilden, – die Abgasleitungen der Zylinder (10) jeder Zylindergruppe innerhalb des min. einen Zylinderkopfes (9) unter Ausbildung eines Abgaskrümmers (7a, 7b) jeweils zu einer Gesamtabgasleitung (8a, 8b) zusammenführen, – min. ein Abgasturbolader vorgesehen ist, – die beiden Gesamtabgasleitungen (8a, 8b) mit der segmentierten zweiflutigen Turbine (1), die min. ein in einem Turbinengehäuse (2) auf einer drehbaren Welle (4) gelagertes und mit Laufschaufeln ausgestattetes Laufrad (3) umfasst, in einem Eintrittsbereich (2a) des Turbinengehäuses (2) in der Art verbunden sind, dass jeweils eine Gesamtabgasleitung (8a, 8b) mit einer der zwei Fluten (5, 6) der Turbine (1) verbunden ist, wobei die zwei Fluten (5, 6) – in Fortsetzung der Gesamtabgasleitungen (8a, 8b) – bis hin zu dem min. einen Laufrad (3) mittels min. einer Gehäusewandung (2c) voneinander getrennt sind und damit auch die Abgasabführsysteme der Zylindergruppen, wobei – die Turbine (1) eine segmentierte zweiflutige Axialturbine (1) ist, – der Eintrittsbereich (2a) des Turbinengehäuses (2) koaxial zur Welle (4) der Axialturbine (1) verläuft und ausgebildet ist, und – der Eintrittsbereich (2a) und zumindest ein Teil eines Abschnitts des Turbinengehäuses (2), welcher das min. eine Laufrad (3) umschließt, in den min. einen Zylinderkopf (9) integriert sind, so dass der min. eine Zylinderkopf (9) und zumindest ein Teil des Turbinengehäuses (2) ein monolithisches Bauteil bilden. Charged internal combustion engine with min. a cylinder head (9) with min. two cylinders (10), in which - each cylinder (10) min. has an outlet opening - min. two cylinders (10) are configured in such a way that these two groups each with min. form a cylinder (10), - the ...

Supercharged internal combustion engine with exhaust gas turbocharger and auxiliary compressor and method for operating such an internal combustion engine

Aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (1) zum Zuführen von Ladeluft, – einem Abgasabführsystem zum Abführen von Abgas, und – mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine (4) und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei – ein elektrisch antreibbarer zweiter Verdichter (5) stromaufwärts des Verdichters (3) des mindestens einen Abgasturboladers (2) im Ansaugsystem (1) angeordnet ist, wobei der zweite Verdichter (5) mindestens ein in einem Verdichtergehäuse (5e) auf einer drehbaren Welle (5c) gelagertes Laufrad (5d) umfasst und ein Axialverdichter (5b) ist, dessen Austrittsbereich (5a) koaxial zur Welle (5c) des zweiten Verdichters (5) verläuft, so dass die Abströmung der Ladeluft aus dem zweiten Verdichter (5) via Austrittsbereich (5a) im Wesentlichen axial erfolgt, – der Verdichter (3) des mindestens einen Abgasturboladers (2) einen Eintrittsbereich (3a) aufweist, der koaxial zur Welle (3c) des Verdichters (3) und koaxial zum Austrittsbereich (5a) des zweiten Verdichters (5) verläuft und ausgebildet ist, so dass die Anströmung der Ladeluft zu dem Verdichter (3) des mindestens einen Abgasturboladers (2) im Wesentlichen axial erfolgt, – der elektrisch antreibbare zweite Verdichter (5) als zuschaltbarer Verdichter (5) ausgebildet ist, – der zweite Verdichter (5) größer ausgelegt ist als der Verdichter (3) des mindestens einen Abgasturboladers (2), und – zum Zwecke der Abgasabblasung eine dritte Bypassleitung vorgesehen ist, die stromaufwärts der Turbine (4) vom Abgasabführsystem abzweigt. Supercharged internal combustion engine with - an intake system (1) for supplying charge air, - an exhaust gas removal system for discharging exhaust gas, and - at least one exhaust gas turbocharger (2) having a turbine arranged in the Abgasabführsystem turbine (4) and in the intake system (1) arranged compressor ( 3), wherein - an electrically drivable second compressor (5) upstream of the ...

Supercharged internal combustion engine with exhaust gas turbocharger and auxiliary compressor and method for operating such an internal combustion engine

Aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (1), – einem Abgasabführsystem und – mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine (4) und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei – ein elektrisch antreibbarer zweiter Verdichter (5) stromaufwärts des Verdichters (3) des mindestens einen Abgasturboladers (2) im Ansaugsystem (1) angeordnet ist, wobei der zweite Verdichter (5) mindestens ein in einem Verdichtergehäuse (5e) auf einer drehbaren Welle (5c) gelagertes Laufrad (5d) umfasst und ein Axialverdichter (5b) ist, dessen Austrittsbereich (5a) koaxial zur Welle (5c) des zweiten Verdichters (5) verläuft, so dass die Abströmung der Ladeluft aus dem zweiten Verdichter (5) via Austrittsbereich (5a) im Wesentlichen axial erfolgt, – der Verdichter (3) des mindestens einen Abgasturboladers (2) einen Eintrittsbereich (3a) aufweist, der koaxial zur Welle (3c) des Verdichters (3) und koaxial zum Austrittsbereich (5a) des zweiten Verdichters (5) verläuft und ausgebildet ist, so dass die Anströmung der Ladeluft zu dem Verdichter (3) des mindestens einen Abgasturboladers (2) im Wesentlichen axial erfolgt, – der zweite Verdichter (5) größer ausgelegt ist als der Verdichter (3) des mindestens einen Abgasturboladers (2), und – zum Zwecke der Abgasabblasung eine dritte Bypassleitung vorgesehen ist, die stromaufwärts der Turbine (4) vom Abgasabführsystem abzweigt. Supercharged internal combustion engine with - an intake system (1), - an exhaust gas discharge system and - at least one exhaust gas turbocharger (2), which comprises a turbine disposed in the Abgasabführsystem turbine (4) and in the intake system (1) compressor (3), wherein - an electrically driven second compressor (5) upstream of the compressor (3) of the at least one exhaust gas turbocharger (2) in the intake system (1) is arranged, wherein the second compressor (5) at least one in a compressor housing (5e) on a rotatable shaft (5c) mounted ...

Supercharged internal combustion engine with mixed-flow turbine

The disclosure relates to a supercharged internal combustion with a mixed flow turbine. In one example, a system comprises a mixed-flow turbine having a turbine shaft coupled to a compressor, a plurality of guide vanes arranged in an inlet of the mixed-flow turbine, a plurality of bevel wheels each coupled to a respective guide vane via a respective guide vane shaft, a pinion wheel with a plurality of teeth to mesh with the plurality of bevel wheels, and a pinion drive coupled to one of the bevel wheels.

Internal combustion engine with variable mixed-flow turbine

Brennkraftmaschine mit einem Ansaugsystem zum Zuführen von Ladeluft, einem Abgasabführsystem (2) zum Abführen des Abgases und mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5) eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung (9) verdrehbare Leitschaufeln (8a) umfasst, wobei – die Verstelleinrichtung (9) über einen verdrehbaren Verstellring (9a) verfügt, der koaxial zur Turbinenwelle (4) der Mixed-Flow-Turbine (1) gelagert ist, – jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist, und – verschwenkbare Hebel (8c) als Zwischenelemente zur kinematischen Koppelung des Verstellringes (9a) mit den leitschaufelzugehörigen Wellen (8b) vorgesehen sind, die jeweils an ihrem einen wellenseitigen Ende (8c´) verdrehfest mit einer leitschaufelzugehörigen Welle (8b) verbunden sind und an ihrem anderen ringseitigen Ende (8c´´) beweglich in einer Ausnehmung (9b) des Verstellringes (9a) gelagert sind, so dass die Leitschaufeln (8a) mittels Verdrehen des Verstellrings (9a) verstellbar sind, dadurch gekennzeichnet, dass – jede leitschaufelzugehörige Welle (8b) geradlinig ausgebildet ist, – die verschwenkbaren Hebel (8c) um einen spitzen Winkel γ gekröpft sind, und – die verschwenkbaren Hebel (8c) ausgehend vom Verstellring (9a) nach außen gerichtet sind. Internal combustion engine with an intake system for supplying charge air, a Abgasabführsystem (2) for discharging the exhaust gas and at least one in Abgasabführsystem (2) arranged mixed-flow turbine (1), the at least one in a turbine housing (3) and arranged on a rotatable Turbine shaft (4) mounted impeller (5) and wherein the turbine housing (3) has an inlet region (6), in ...

Internal combustion engine with mixed-flow turbine comprising a guide device and exhaust gas recirculation

Brennkraftmaschine mit- einem Ansaugsystem zum Zuführen von Ladeluft,- einem Abgasabführsystem (2) zum Abführen des Abgases,- einer Abgasrückführung, und- mindestens einer im Abgasabführsystem (2) angeordneten Mixed-Flow-Turbine (1), die mindestens ein in einem Turbinengehäuse (3) angeordnetes und auf einer drehbaren Turbinenwelle (4) gelagertes Laufrad (5) umfasst und bei der das Turbinengehäuse (3) einen Eintrittsbereich (6) aufweist, in welchem stromaufwärts des mindestens einen Laufrades (5), welches Laufschaufeln (5a) umfasst, eine verstellbare Leiteinrichtung (8) angeordnet ist, die mittels Verstelleinrichtung verdrehbare Leitschaufeln (8a) umfasst, wobei jede Leitschaufel (8a) auf einer leitschaufelzugehörigen Welle (8b) angeordnet ist, dadurch gekennzeichnet, dass- jede leitschaufelzugehörige Welle (8b) parallel zur Turbinenwelle (4) verläuft,- jede Laufschaufel (5a) des mindestens einen Laufrades (5) eine Anströmkante (5b) aufweist, die mit der Turbinenwelle (4) einen spitzen Winkel αrotbildet, und- jede Leitschaufel (8a) laufradseitig eine Abströmkante (8c) aufweist, die benachbart und beabstandet zur Anströmkante (5b) jeder Laufschaufel (5a) verläuft und mit der Turbinenwelle (4) einen spitzen Winkel αguide,outbildet. Internal combustion engine with - an intake system for supplying charge air, - an exhaust gas removal system (2) for removing the exhaust gas, - an exhaust gas recirculation system, and - at least one mixed-flow turbine (1) arranged in the exhaust gas removal system (2) and having at least one in a turbine housing (3) arranged and mounted on a rotatable turbine shaft (4) comprises an impeller (5) and in which the turbine housing (3) has an inlet area (6) in which upstream of the at least one impeller (5) which comprises impeller blades (5a). , an adjustable guide device (8) is arranged, which comprises guide vanes (8a) which can be rotated by means of an adjusting device, each guide vane (8a) being arranged on a guide vane-associated shaft ( ...

Vehicle heating system and method of using the same

In one or more embodiments, the present invention provides a vehicle heating system for a vehicle with an engine and a charge air cooler, the vehicle heating system including a high-temperature cooling circuit coupled to the engine, a low-temperature cooling circuit coupled to the charge air cooler and including a low temperature cooler, and a heating heat exchanger coupled to the low-temperature cooling circuit.

Supercharged internal combustion engine with exhaust-gas turbocharging arrangement, and method for operating an internal combustion engine of said type

The disclosure relates to a supercharged internal combustion engine with an intake system and an exhaust gas discharge system that include two turbochargers arranged in series, a turbo-generator, and an electrically-driven compressor. During engine operation with mid-to-high exhaust gas flow rates, excess exhaust gas that bypasses the high-pressure turbocharger may be directed through the turbo-generator to generate electricity that may be provided to drive the electrically-driven compressor.

Charged internal combustion engine with turbocharging and method for operating such an internal combustion engine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine (1) mit einem Ansaugsystem (2), einem Abgasabführsystem (3) und mindestens zwei Abgasturboladern (6, 7), von denen ein erster Abgasturbolader (6) als Niederdruckstufe (6) und ein zweiter Abgasturbolader (7) als Hochdruckstufe (7) dient, bei der – der Verdichter (7b) des zweiten Abgasturboladers (7) stromabwärts des Verdichters (6b) des ersten Abgasturboladers (6) angeordnet ist und mit einer Bypassleitung (12) ausgestattet ist, und – die Turbine (6a) des ersten Abgasturboladers (6) stromabwärts der Turbine (7a) des zweiten Abgasturboladers (7) angeordnet ist, und die dadurch gekennzeichnet ist, dass – eine parallel zur Turbine (7a) des zweiten Abgasturboladers (7) angeordnete weitere Turbine (8) vorgesehen ist, die mit einer variablen Turbinengeometrie ausgestattet und mit einem Generator (8a) antriebsverbunden ist, – eine Bypassleitung (10) vorgesehen ist, die stromaufwärts der weiteren Turbine (8) und der Turbine (7a) des zweiten Abgasturboladers (7) vom Abgasabführsystem (3) abzweigt und stromabwärts dieser Turbinen (7a, 8) wieder in das Abgasabführsystem (3) mündet, und – ein zusätzlicher Verdichter (9) zwischen den Verdichtern (6b, 7b) der Abgasturbolader (6, 7) vorgesehen ist, der mit einem Elektromotor (9a) antriebsverbunden ist, wobei eine Bypassleitung (11) zwecks Umgehung des zusätzlichen Verdichters (9) vorgesehen ist. The invention relates to a supercharged internal combustion engine (1) with an intake system (2), an exhaust gas removal system (3) and at least two exhaust gas turbochargers (6, 7), of which a first exhaust gas turbocharger (6) as a low pressure stage (6) and a second exhaust gas turbocharger (7 ) is used as a high pressure stage (7), in which - the compressor (7b) of the second exhaust gas turbocharger (7) downstream of the compressor (6b) of the first exhaust gas turbocharger (6) is arranged and equipped with a bypass line (12), and - the turbine (6a) of the first exhaust-gas ...

Motor vehicle and air filter box

Kraftfahrzeug (10) mit einem Motor (11), einem Zuluftstrang (12) zur Versorgung des Motors (11) mit Zuluft (30), einem im Zuluftstrang (12) angeordneten Verdichter (15) sowie einem im Zuluftstrang (12) stromaufwärts des Verdichters (15) angeordneten Drallerzeuger (17), wobei der Drallerzeuger (17) zumindest eine Leitschaufel (27) zur Erzeugung eines Dralls in der Zuluft (30) und einen Drallerzeugerausgang (29) mit einem ersten Radius (22) aufweist und wobei der Verdichter (15) einen Verdichtereingang (19) mit einem zweiten Radius (23), der kleiner als der erste Radius (22) ist, aufweist, dadurch gekennzeichnet, dass das Kraftfahrzeug (10) eine Luftfilterbox (18) aufweist und der Drallerzeuger (17) in der Luftfilterbox (17) angeordnet ist und dass stromabwärts des Drallerzeugerausgangs (29) und stromaufwärts des Verdichtereingangs (19) eine Abgasrückführungsleitung (20) mündet.

Charged internal combustion engine with exhaust gas turbocharger and method for operating such an internal combustion engine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (1) zum Zuführen von Ladeluft, – einem Abgasabführsystem zum Abführen von Abgas, – mindestens einem Abgasturbolader (2), der eine im Abgasabführsystem angeordnete Turbine und einen im Ansaugsystem (1) angeordneten Verdichter (3) umfasst, wobei der Verdichter (3) mit mindestens einem in einem Verdichtergehäuse (3e) auf einer drehbaren Welle (3c) gelagerten Laufrad (3d) ausgestattet ist, und – einer Abgasrückführung umfassend ein Rückführleitungssystem, das stromabwärts der Turbine des mindestens einen Abgasturboladers (2) vom Abgasabführsystem abzweigt und stromaufwärts des mindestens einen Verdichterlaufrades (3d) in das Ansaugsystem (1) mündet, wobei – das Rückführleitungssystem mindestens zwei Ringkanäle (4, 5) umfasst, die das Ansaugsystem (1) stromaufwärts des mindestens einen Verdichterlaufrades (3d) zumindest abschnittsweise spiralförmig umgeben, wobei von jedem Ringkanal (4, 5) mehrere Kanäle (4a, 5a) ausgehen, die jeweils via Eintrittsöffnung (4b, 5b) ansaugseitig mit dem Ansaugsystem (1) strömungstechnisch verbunden sind, – ein erster Ringkanal (4) Kanäle (4a) aufweist, die zumindest ansaugseitig im Wesentlichen radial zur Welle (3c) des Verdichters (3) ausgerichtet sind und damit die Welle (3c) in einer virtuellen Verlängerung schneiden, und – ein zweiter Ringkanal (5) Kanäle (5a) aufweist, die zumindest ansaugseitig in der Art einer Sekante ausgerichtet sind und damit in einer virtuellen Verlängerung beabstandet zur Welle (3c) des Verdichters (3) verlaufen. The invention relates to a supercharged internal combustion engine having an intake system (1) for supplying charge air, an exhaust gas removal system for discharging exhaust gas, at least one exhaust gas turbocharger (2) having a turbine arranged in the exhaust gas removal system and a compressor arranged in the intake system (1). 3), wherein the compressor (3) is equipped with at least one impeller (3d) mounted in a ...

Internal combustion engine with mechanical supercharger and electric machine and method for operating such an internal combustion engine

Die Erfindung betrifft eine aufgeladene Brennkraftmaschine (1) mit – einer Kurbelwelle, – einem Ansaugsystem (2) zum Zuführen von Ladeluft, – einem Abgasabführsystem (4) zum Abführen des Abgases, – einem mechanischen Lader (8), der im Ansaugsystem (2) angeordnet ist und der über mindestens ein auf einer Antriebswelle (8a) angeordnetes Laufrad und eine Bypassleitung (8b) verfügt, die stromabwärts des Laders (8) in das Ansaugsystem (2) mündet, – einer Elektromaschine (7), die über eine Welle (7a) verfügt und als Antriebsmotor mittels einer ersten Kupplung (11) mit der Antriebswelle (8a) des Laders (6) antriebsverbindbar ist, und – einer Batterie (9), wobei – die Elektromaschine (7) als Generator betreibbar ist, der Leistung aufnimmt, – ein Zugmitteltrieb (10) vorgesehen ist, der neben dem Zugmittel ein auf der Kurbelwelle der Brennkraftmaschine (1) angeordnetes erstes Rad (10a) und ein auf der Welle (7a) der Elektromaschine (7) angeordnetes zweites Rad (10b) umfasst, wobei das zweite Rad (10b) ein in eine Drehrichtung freilaufendes Rad (10b) ist, welches freiläuft, wenn die Drehzahl nshaft der Welle (7a) der Elektromaschine (7) größer ist als die Drehzahl nwheel des zweiten Rades (10b), und die Welle (7a) der Elektromaschine (7) mittels einer zweiten Kupplung (12) mit dem zweiten Rad (10b) antriebsverbindbar ist. The invention relates to a supercharged internal combustion engine (1) having - a crankshaft, - an intake system (2) for supplying charge air, - an exhaust gas removal system (4) for discharging the exhaust gas, - a mechanical supercharger (8) operating in the intake system (2) is arranged and which has at least one arranged on a drive shaft (8a) impeller and a bypass line (8b) downstream of the loader (8) in the intake system (2) opens, - an electric machine (7) via a shaft ( 7a) and as a drive motor by means of a first clutch (11) with the drive shaft (8a) of the supercharger (6) is drive-connected, and - a battery (9), wherein - the electric machine (7) is ...

Turbocharger assembly has internal combustion engine rechargeable by turbo charger and charge-air cooler arranged between turbocharger and internal combustion engine in intake section

The turbocharger assembly has an internal combustion engine (1) rechargeable by a turbo charger and a charge-air cooler (2) arranged between the turbocharger and the internal combustion engine in an intake section. The charge-air cooler is arranged in cooling systems (3,6). The charge-air cooler has a supply line (19) for supplying coolant in the cooling system. The supply line has heat recovery elements (23,24).

Supercharged internal combustion engine with compressor, exhaust gas recirculation and valve unit

Aufgeladene Brennkraftmaschine mit – einem Ansaugsystem (1) zum Zuführen einer Ladeluftströmung, – einem Abgasabführsystem zum Abführen von Abgas, – mindestens einem im Ansaugsystem (1) angeordneten Verdichter (2), der mit mindestens einem in einem Gehäuse (2c) auf einer drehbaren Welle (2d) gelagerten Laufrad (2e) ausgestattet ist, – einer Abgasrückführung (5) umfassend eine Rückführleitung (5a), die vom Abgasabführsystem abzweigt und stromaufwärts des mindestens einen Laufrades (2e) unter Ausbildung eines Knotenpunktes (5b) in das Ansaugsystem (1) mündet, wobei die Rückführleitung (5a) stromaufwärts einer im Abgasabführsystem angeordneten Turbine abzweigt, und – einer am Knotenpunkt (5b) im Ansaugsystem (1) angeordneten Ventileinheit (3), die ein Ventilgehäuse (3d) und eine in dem Ventilgehäuse (3d) angeordnete Klappe (3a) umfasst, wobei die Klappe (3a) um eine quer zur Frischluftströmung verlaufende Achse (3b) in der Art verschwenkbar ist, dass die Klappe (3a) in einer ersten Endposition mit einer Vorderseite (3a´) das Ansaugsystem (1) versperrt und die Rückführleitung (5a) freigibt und in einer zweiten Endposition mit einer Rückseite (3a´´) die Rückführleitung (5a) verdeckt und das Ansaugsystem (1) freigibt, wobei – das Ventilgehäuse (3d) zumindest bereichsweise mit einer Wärmeisolierung (4) versehen ist.