Robert Boschgmbh

Karl-Heinz Heussner

Horst Boeder

Albrecht Geissinger

Werner Teschner

Juergen Oberle

Johannes Locher

Hans-Martin Wiedenmann

Harald Neumann

Pavlo Saltikov

Simon Schmittinger

Armin Kussmaul

A plate-shaped sensor element is proposed, in particular for determining the oxygen level in exhaust gases of internal combustion engines. The sensor element has at least one measuring cell with an oxygen-ion-conducting solid electrolyte and a heating element, the measuring cell and the heating element being connected with an electrical insulation layer. The material of the insulation layer is made of at least one crystalline, non-metallic material and at least one glass-forming material, a glazing filled with the crystalline, non-metallic material being formed when the sensor element is sintered.

Sensor element

Pencil type glow plug for diesel engines

A ceramic electric resistor is proposed which can be made by means of ceramizing at least one organo-silicon polymer and at least one filler. The filler comprises at least one high-melting electrically conductive component, with the filler portion amounting to 20 to 50 vol. % relative to the solvent-free polymer-filler mixture. The specific electrical resistance can be set by varying the filler portion. The ceramic electric resistor is particularly suited as heating conductor for pencil-type glow plugs.

Ceramic electric resistor

Growing community of inventors

Leonberg, Germany

Karl-Heinz Heussner