Ford Global Technolgoies, LLC

Franz J Brinkmann

Vanco Smiljanovski

Joerg Kemmerling

Helmut Matthias Kindl

Franz Arnd Sommerhoff

Frank Kraemer

Andreas Kuske

Hanno Friederichs

Werner Willems

Kai Sebastian Kuhlbach

Carsten Weber

Ludwig Stump

Jan Mehring

Harald Stoffels

Jens Wojahn

Norbert Andreas Schorn

Rob Stalman

Jens Groeger

Hans Guenter Quix

Bernd Steiner

Klemens Grieser

Stefan Quiring

Frank Wunderlich

Claudia Katharina Herudek

Michael Forsting

Volker Haupts

Claudia Conee

Uwe Spaeder

Brian David Eves

Dirk Borrmann

Tim Franken

Lutz Henkelmann

Achim Mennicken

Gary Peirce

Helmut Kindl

Diana Zimmermann

Brian Eves

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.

Controlling the position of turbine guide vanes and of a coolant flow

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.

Methods and systems for an exhaust system

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.

Systems and methods for a boosted internal combustion engine with an intake-side bypass line

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.

Radial turbocharger comprising a swirl generator

Methods and systems are provided for a coolant system. In one example, a method may include flowing coolant to an active cylinder during a cold-start.

Method for operating a combustion engine having a split cooling system and cylinder shutdown

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.

Exhaust-gas-turbocharged internal combustion engine with partial deactivation

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.

Method for operating an internal combustion engine with parallel supercharging and with an activatable turbine, and internal combustion engine for carrying out a method of said type

The disclosure relates to a spark-ignited charged internal combustion engine coupled to an exhaust gas turbocharger with a compressor mounted on a rotatable shaft, the rotatable shaft coupled to a turbine and to an electric auxiliary drive. The electric auxiliary drive of the exhaust gas turbocharger may be activated to increase rotational speed of the rotatable shaft to drive the compressor to supply boost to the engine. The electric auxiliary drive may be engaged or disengaged from the rotatable shaft, responsive to engine operating conditions, such as engine speed, rotation speed of the rotatable shaft, exhaust volume, and engine boost demand.

Spark-ignited internal combustion engine with electrically drivable exhaust gas turbocharger, and method for operating an internal combustion engine of this type

Embodiments for controlling boost pressure during transient conditions are disclosed. In one example, a method includes, responsive to deactivation of a first turbine of a first turbocharger, deactivating an exhaust valve of a cylinder to flow exhaust gas from the cylinder to a second turbine of a second turbocharger, and adjusting a speed of the second turbocharger via an electric machine coupled to the second turbocharger in a generator mode; and responsive to activation of the first turbine, activating the exhaust valve to flow exhaust gas from the cylinder to the first turbine and the second turbine, and adjusting the speed of the second turbocharger via the electric machine in an auxiliary drive mode.

Method for charge pressure control of an internal combustion engine with turbines arranged in parallel, and internal combustion engine for carrying out such a method

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.

Engine system with intake air-supply turbine and motor-driven compressor

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.

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

A compressor for an internal combustion engine is provided. The compressor includes a compressor shaft having compressor blades attached thereto, positioned in an intake air duct, and rotating about an axis during compressor operation and a magnetic bearing positioned upstream of the compressor blades in the intake air duct, including a ring positioned around the compressor shaft, stator electrics arranged in the ring, and at least two magnets arranged on the compressor shaft configured to exert a magnetic force on the stator electrics to form an air gap between the ring and the compressor shaft.

Compressor and motor vehicle

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.

Exhaust gas passage with aftertreatment system

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.

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

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.

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

Growing community of inventors

Huerth-Efferen, Germany

Franz J Brinkmann