Robert Boschgmbh

Heiner Scheer

Lothar Diehl

Hans-Joerg Renz

Hans-Martin Wiedenmann

Harald Neumann

Thomas Wahl

Johann Riegel

Gerhard Schneider

Thomas Moser

Sabine Thiemann-Handler

Walter Strassner

Carsten Springhorn

Stefan Rodewald

Udo Jauernig

Jürgen Karle

Dieter Lindauer

Juergen Karle

Josef Hickl

Marten Mamey

Hans-J Erg Renz

Frank Haag

A gas sensor for detecting at least one physical magnitude of a gas, in particular of exhaust gases of an internal combustion engine, is proposed, which includes a sensor element having an electrochemical cell. The electrochemical cell includes a first solid electrolyte member on which a first electrode and a second electrode are applied. The first and the second electrode are electrically connected by means of the first solid electrolyte member. The first electrode is in contact with the gas. The area of the first electrode is smaller than the area of the second electrode.

Gas sensor

The reference air channel of a gas sensor or a lambda probe having a laminate body produced by printing technology is provided. The laminate body is produced by printing a suitably structured layer onto a neighboring layer, for example, by screen printing.

Gas sensor, in particular a lambda sensor

A sensor element for determining the concentration of gas components in gas mixtures, particularly for determining the oxygen concentration in exhaust gases of internal combustion engines. It contains a pump cell, which pumps oxygen into or out of a measuring gas chamber, as well as a concentration cell, which has a reference electrode situated in the reference gas channel, and has a measuring electrode. The measuring gas chamber and the reference gas channel are situated in the same layer plane of the sensor element, and are separated from each other by a partition, which is produced by applying a ceramic paste to an adjacent, solid electrolyte foil.

Sensor element for determining the oxygen concentration in gas mixtures and method for its manufacture

A gas sensor has improved electrical properties. In the top view of the layer planes of the body of the sensor, printed circuit traces for electrodes are arranged outside of cavities in the body, e.g., outside of the reference air duct. Furthermore, the electrodes are enlarged in the direction of the exhaust-side end of the sensor. Also, the printed circuit traces have an increased layer thickness or are formed as a double layer.

Gas sensor, especially a lambda probe

Growing community of inventors

Berghuelen, Germany

Heiner Scheer