Robert Boschgmbh

Bmts Technology Gmbh &co. Kg

Robert Bosh Gmbh

Michael Nau

Michael Baeuerle

Marc Bareis

Frank Ilgner

Horst Harndorf

Manfred Ruoff

Guido Porten

Ingo Immendoerfer

Carsten Reisinger

Martin-Peter Bolz

Dirk Hofmann

Andreas Roth

Winfried Langer

Nikolaus Benninger

Dietmar Uhlenbrock

Frank Meier

Reiner Schweinfurth

Frank Brenner

Markus Deissler

Johannes Riedl

Hartmut Weiss

Gunter Winkler

Chao Zhang

Erwin Schiele

Michael Bäuerle

Holger Knesch

Kilian Ertl

Thomas Frühschütz

Robert Torno

Daniel Haege

Petr Stary

Martin Slezak

Michal Beranek

A method () for operating an exhaust gas burner () in an exhaust section () of an internal combustion engine (), comprising introducing a purging fluid comprising at least air () into the exhaust gas burner () during a purging operating phase (), which lies outside the time of a normal operating phase () of the exhaust gas burner (), and discharging a discharge mixture formed using the purging fluid from the exhaust gas burner (), wherein the exhaust gas burner () is operated for the purpose of heating a component () of the exhaust section () to its operating temperature during the normal operating phase (). A processor unit () and a computer program for carrying out such a method () are furthermore proposed.

Method and processor unit for operating an exhaust gas burner

A method for operating a fuel-operated burner () downstream of an engine () and upstream of a catalytic converter (), comprising an actuation of an ignition apparatus () of the burner () during a pre-definable preheating phase, without delivering fuel () to the burner () during the preheating phase, and, after the end of the preheating phase, a timely delivery of fuel () to the burner () and combustion of the delivered fuel () in the burner (). Further, a computing unit and a computer program product for carrying out such a method are proposed.

Method for operating a fuel-operated burner

The invention relates to an electric media gap machine () for a compressor and/or a turbine, in particular for a turbocharger of an internal combustion engine, including a shaft () which is rotatably mounted in a housing () and on which a rotor () is arranged in a rotationally fixed manner, a stator () which is fixed to the housing and which has at least one multi-phase drive coil () for generating a drive magnetic field and multiple stator teeth () that protrude radially inward, and a device () which is fixed to the stator for optimizing the flow of a medium flowing through the media gap machine. The device () has a cover cap () which covers at least the rotor () upstream thereof, wherein the cover cap () is adjoined by an inner sleeve () which surrounds the rotor () completely in the circumferential direction and at least partly in the axial direction. The device () has an outer sleeve () which is arranged coaxially to the inner sleeve () such that the only flow path for the medium between the inner sleeve () and the outer sleeve () is formed solely through the stator () of the media gap machine.

Electric media gap machine for a compressor and/or a turbine, turbocharger and/or turbine

In a method for operating a motor vehicle having an internal combustion engine, pre-heating measures () for reaching operating temperatures for components of the exhaust-gas post-treatment system and/or for a lambda probe of the motor vehicle are provided prior to the departure () of the motor vehicle. The activation of a transducer () by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as the trigger for the pre-heating measures (), in particular for avoiding an unnecessary initiation of pre-heating measures.

Method for operating a motor vehicle

A device and method for regulating a compressor for an internal combustion engine. At least one actual variable is detected that characterizes a property of an air column, which is situated at an outlet of the compressor in an induction tract of an internal combustion engine, the actual variable being compared in a comparison with a comparison value, the comparison value characterizing a limit for the property of the air column, a setpoint variable being determined as a function of the result of the comparison in order to shift the actual variable in the direction or opposite direction of the comparison value, and an actuator for influencing the actual variable being operated as a function of the setpoint variable.

Device and method for regulating a compressor for an internal combustion engine

A method for operating a drive apparatus, having a reciprocating-piston engine and an exhaust-gas-driven turbocharger, of a motor vehicle, the reciprocating-piston engine being operated in a four-stroke mode during on-load operation; and the exhaust-gas-driven turbocharger having an electrical machine, in particular a media gap machine, that is operated in generator mode during overrun operation of the reciprocating-piston engine. During overrun operation, the reciprocating-piston engine is operated in a two-stroke mode.

Method and device for operating a drive unit, drive unit, motor vehicle

A supercharger for an internal combustion engine includes a supercharger chamber, a diaphragm, an inlet valve, an outlet valve, an exhaust gas line, and an actuator. The diaphragm is positioned in the supercharger chamber and divides the supercharger chamber into an intake chamber and an exhaust gas chamber. The inlet valve and outlet valve are positioned on the intake chamber. The exhaust gas chamber is connected to the exhaust gas line, and to the actuator. The actuator is electrically actuatable, is connected to the diaphragm, and is configured to change a resonance frequency of the diaphragm.

Supercharger of an internal combustion engine with a diaphragm having an electrical actuator controlled resonant frequency

An exhaust gas turbocharger for a drive device, having a compressor that is capable of being electrically supported or driven by a media gap motor, the media gap motor having a rotor that is operatively connected to a bearing shaft of a compressor impeller of the compressor, and having a stator that surrounds the rotor at least in some regions in the circumferential direction relative to an axis of rotation of the bearing shaft. A power electronics for controlling at least one electrical winding of the stator surrounds the axis of rotation at least in some regions in the circumferential direction, a cooling jacket that stands in touch contact with the stator and/or with the power electronics being provided for cooling the stator and/or the power electronics.

Charger, in particular an exhaust gas turbo charger, for a drive device and corresponding drive device

The invention relates to a method for checking a functionality of a differential pressure measuring unit () in an exhaust gas recirculation system () of a motor vehicle, and a corresponding exhaust gas recirculation system (). In an air intake duct (), a sensor flap () is provided downstream of an air filter () and upstream of an opening () of an exhaust gas recirculation duct (). This sensor flap () is set in two different positions and a value of a pressure drop in the exhaust gas stream is measured for each position as said gas stream flows through an exhaust gas recirculation stream valve () provided in the exhaust gas recirculation duct (). If the measured pressure drop does not significantly change despite the movement of the sensor flap (), it can be assumed that there is a fault in the differential pressure measuring unit (). In particular, it is possible to detect when a hose (), which connects a differential pressure sensor of the differential pressure measuring unit () to a connector () on the exhaust gas recirculation duct () downstream of the exhaust gas recirculation stream valve () has torn, slipped off or become blocked.

Method for checking the functionality of a differential pressure measuring unit of a motor vehicle exhaust gas recirculation system

A turbocharger for a motor vehicle, including a compressor, which has a compressor wheel situated on a rotatably supported shaft, an electric machine being situated in a pipe section of an axial compressor inlet, the electric machine including a rotor situated on the shaft and a stator situated on the pipe section. The stator has multiple webs projecting inward which are distributed over the circumference and extend at least essentially in an axial direction, the webs being used for forming flow channels which extend in an axial direction and are situated at a distance from one another.

Turbocharger including an electric machine

A transmission system for an adjusting device, of a waste gate of an exhaust gas turbocharger, including a four bar coupling mechanism, a driver arm operatively connected to a drive via a transmission, an output arm and a coupler, operatively connecting the driver and output arms, the transmission having a driving gear, assigned to the drive, and a driven gear, assigned to the driver arm and interacting with the driving gear having a rolling curve radius, which changes over the circumference, the driven gear having a rolling curve radius running complementary to the former. The rolling curve radii is selected in an angle of rotation range about the extended position of the coupling to form at least in regions a first transmission ratio and outside the angle of rotation range to form at least a second transmission ratio larger than the first ratio. Also described is an exhaust gas turbocharger.

Transmission system and exhaust gas turbocharger

The invention relates to a regulating device for an actuator arranged in a gas passageway of an internal combustion engine, in particular for a bypass flap arranged in an exhaust turbocharger, having an electrical servomotor, a regulating member coupled to the actuator and a multi-gear transmission arranged between the servomotor and regulating member. According to the invention, to achieve a large transmission ratio range with a small number of transmission gears, two transmission wheels interact in at least one of the transmission gears via an evoloid toothing.

Regulating device for an actuator

A method for operating an internal combustion engine in which fresh air, under ambient pressure, is compressed with the aid of a compressor, in particular an exhaust gas turbocharger, and supplied to a combustion chamber of the internal combustion engine via a throttle device, the rotational speed of the compressor being ascertained with the aid of a sensor, in particular a pressure sensor, the rotational speed of the compressor being used for determining the ambient pressure or a boost pressure applied downstream from the compressor and upstream from the throttle device.

Method for operating an internal combustion engine

A dosing mechanism for fuels, particularly for the input into a chemical reformer to obtain hydrogen, has a metering-in device for metering fuel into a supply line, which opens out at at least one dosing aperture into a transporting line transporting a tempered material flow. A holding device for accommodating the metering-in device has an insulating body which thermally insulates the metering-in device from the transporting line that transports the tempered material flow.

Dosing device

An atomization system for fuels, particularly for charging a chemical reformer for obtaining hydrogen, features at least one metering device, accommodated in a supporting device, for metering fuel into a temperature-adjusted substance stream, which introduces the fuel directly into the temperature-adjusted substance stream without the interpolation of a supply line.

Growing community of inventors

Dornhan/Aischfeld, Germany

Michael Nau