Robert Boschgmbh

Torsten Schulz

Uwe Konzelmann

Hans Hecht

Thomas Lenzing

Klaus Reymann

An internal combustion engine includes multiple cylinders. A partial set of the cylinders may be temporarily shut off. Fuel is introduced briefly into at least one of the shut off cylinders and combusted in an at least essentially torque-neutral way during the cylinder shut off period.

Method for operating an internal combustion engine

A device is provided for determining at least one parameter of a medium flowing in a line in a main flow direction, e.g., a parameter of the intake air mass of an internal combustion engine. The device includes a part, which is inserted into the line at a predetermined alignment with respect to the main flow direction in such a way that a partial flow of the medium flowing in the line in the main flow direction flows through at least one measuring channel provided in the part in a first direction from an intake of the measuring channel to an outlet of the measuring channel. The device further includes a measuring element situated in the measuring channel for determining the at least one parameter. Between its intake and its outlet, the measuring channel features at least one channel segment in which a mechanism is located that causes flow vortices in this channel segment, whereby liquid droplets and solid particles are advantageously deposited on the inner wall of the channel before they can reach the measuring element.

Airflow meter with device for the separation of foreign particles

A method for cleaning of a measuring element () passed over by a gas flow is arranged on a thin-walled membranous material (). The measuring element () includes at least one heatable element (), which is arranged on the membranous material, the membranous material being capable of vibrating. By means of a control apparatus () or a switching () associated with the measuring element, a periodic delivery of current () in intervals takes place in this manner to at least one heatable element () of the measuring element () and thereby produces vibrations. Alternatively, vibrations of the membranous material () can be produced by special vibration exciters or by means of ultrasonic coupling.

Method for cleaning of a measuring element passed over by a gas flow

A sensor chip having at least upstream from the sensor region, at least one potential surface that, by electrical interaction with the contaminants in the flowing medium, prevents precipitation in the sensor region.

Sensor chip having potential surfaces for avoiding contaminant

A sensor chip exposed to a flowing medium is provided with an additional heater situated upstream and at a definite distance from the sensor area, resulting in the impurities in the flowing medium being deposited in the area of the additional heater, and in the impurities being unable to reach the sensor area.

Sensor chip with additional heating element, method for preventing a sensor chip from being soiled, and use of an additional heating element on a sensor chip

Growing community of inventors

Leinfelden-Echterdingen, Germany

Torsten Schulz