Robert Boschgmbh

Vaclav Straus

Wolf-Ingo Ratzel

Rainer Haeberer

Bruno Hezel

Michael Gerlach

Guenter Krenz

Markus Ulrich

Bernd Beiermeister

Gerold Kohlberger

Zdenek Frcek

Alexander Ziegler

Vlatko Babic

Bjoern Billep

Guenther Krenz

The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.

Sensor arrangement for determining a tank fill level, and method for producing it

An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height Hinto the composite element and forms a narrowed cross section in the composite element having a height H. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.

Multi-component injection-molded part with material-locking sealing

Growing community of inventors

Ceske Budejovice, Czechoslovakia

Vaclav Straus