Abstract: Methods and systems are provided for a turbocharger system. In one example, a system comprises an actuator configured to adjust a position of a plurality of guide vanes and a position of a coolant valve configured to adjust coolant flow through a turbine coolant jacket or a compressor coolant jacket.

Abstract: Methods and systems are provided for a turbocharger system. In one example, a system comprises an actuator configured to adjust a position of a plurality of guide vanes and a position of a coolant valve configured to adjust coolant flow through a turbine coolant jacket or a compressor coolant jacket.

Abstract: An exhaust gas turbine is provided. The exhaust gas turbine includes a first turbine housing part having insulating material extending along an interior surface and a second turbine housing part having insulating material extending along an interior surface, the second turbine housing part coupled to the first turbine housing part to form a volute directing exhaust gas to a turbine wheel.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: Embodiments for an engine coupled to a first turbocharger and a second turbocharger are provided. One example includes responsive to a first condition, deactivating a first turbine of the first turbocharger and meeting a boost demand via operation of the second turbocharger, and responsive to deactivating the first turbine, increasing a pressure at a compressor-side end of a bearing arrangement of a shaft of the first turbocharger. In this way, oil leakage from the bearing arrangement may be reduced.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: The internal combustion engine is provided which may include a cylinder head, a turbine, and a turbine housing. The turbine housing may include an exhaust gas passage, at least one coolant fluid passage, and a wall between the passages. The wall may have a first area (Aexhaust) disposed to absorb heat from an exhaust flow passing through the exhaust gas passage, and a second area (Acoolant) disposed to transfer heat from the wall to be absorbed by a coolant fluid flow passing through the at least one coolant fluid passage, wherein the following applies: Acoolant/Aexhaust?1.2.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: 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.

Abstract: There is provided an arrangement of an internal combustion engine with a sequentially parallel twin turbocharger, in which at least one turbocharger has an electrical energy converter which can be used optionally as a motor for driving a compressor in the lower rotational speed range of the internal combustion engine or as a generator for charging a connected battery.

Abstract: An exhaust gas turbine is provided. The exhaust gas turbine includes a first turbine housing part having insulating material extending along an interior surface and a second turbine housing part having insulating material extending along an interior surface, the second turbine housing part coupled to the first turbine housing part to form a volute directing exhaust gas to a turbine wheel.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: Embodiments for an engine coupled to a first turbocharger and a second turbocharger are provided. One example includes responsive to a first condition, deactivating a first turbine of the first turbocharger and meeting a boost demand via operation of the second turbocharger, and responsive to deactivating the first turbine, increasing a pressure at a compressor-side end of a bearing arrangement of a shaft of the first turbocharger. In this way, oil leakage from the bearing arrangement may be reduced.

Abstract: The internal combustion engine is provided which may include a cylinder head, a turbine, and a turbine housing. The turbine housing may include an exhaust gas passage, at least one coolant fluid passage, and a wall between the passages. The wall may have a first area (Aexhaust) disposed to absorb heat from an exhaust flow passing through the exhaust gas passage, and a second area (Acoolant) disposed to transfer heat from the wall to be absorbed by a coolant fluid flow passing through the at least one coolant fluid passage, wherein the following applies: Acoolant/Aexhaust?1.2.

Abstract: There is provided an arrangement of an internal combustion engine with a sequentially parallel twin turbocharger, in which at least one turbocharger has an electrical energy converter which can be used optionally as a motor for driving a compressor in the lower rotational speed range of the internal combustion engine or as a generator for charging a connected battery.

Abstract: 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.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: 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.

Abstract: An engine having a cylinder head including an exhaust manifold at least partially integrated therein, the exhaust manifold including an inner separating wall fluidly dividing two merged exhaust lines, each merged exhaust line in fluidic communication with a different pair of adjacent cylinders, and an outer separating wall fluidly dividing a first exhaust line in direct fluidic communication with a first cylinder and a second exhaust line in direct communication with a second cylinder, a lateral width of the inner separating wall greater than the outer separating wall, the lateral axis perpendicular to a longitudinal axis traversing centerlines of each cylinder.