Behr Gmbh & Co.

Martin Schindler

Michael Schmidt

Uwe Krüger

The invention relates to an exhaust-gas thermal conductor (), comprising a tube array with exhaust gas flowing therethrough and cooling medium flowing around the same. The tube array is welded to a tube base (), connected to the housing (). As a result of varying temperature effects on the tubes and on the housing () whilst operating the exhaust gas thermal conductor (), thermal stresses, as a result of differing expansion of the tubes and the housing (), occur. According to the invention, said stresses may be avoided, whereby slots (-) are arranged in the housing sleeve (), which are externally sealed by means of a bellows.

Heat exchanger

A heat exchanger, in particular an exhaust gas heat exchanger for a motor vehicle, has tubes through which a first fluid can flow and around which a second fluid can flow, and a headpiece. The headpiece includes a dual-walls structure in at least a part thereof and a distribution chamber that communicates with the tubes.

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Stuttgart, Germany

Martin Schindler