Behr Gmbh Co. Kg

Behr Gmgh & Co. Kg

Winfried Juschka

Rainer Lutz

A heat exchanger, in particular an exhaust gas heat exchanger for motor vehicles, has a bundle of tubes through which hot gas flows, a pair of header plates and a housing jacket, which holds the bundle of tubes and the header plates and through which a liquid cooling medium flows. The header plates have openings () for receiving tube ends () which are welded to the header plates (), which are in turn welded to the housing jacket. The header plates () are constructed from a plurality of layers of metal sheets which are layered one above another and are fixedly connected together.

Heat exchanger, in particular exhaust gas heat exchanger for motor vehicles, and method for producing same

The invention relates to an exhaust heat exchanger (), in particular an exhaust cooler for motor vehicles with exhaust recycling, comprising a housing sleeve () for a coolant and a nest of tubes () with exhaust flowing through and coolant circulating around the above which are mounted on the housing sleeve by means of tube plates (), whereby said nest of tubes, the tube plate and the housing sleeve form a closed force flow. According to the invention, a sliding seating () is arranged in the force flow, either in the housing sleeve or between a tube plate and the housing sleeve. The various expansions of the nest of tubes and of the housing sleeve are thus compensated for, such that unsupportable high loads do not occur in the components of the exhaust heat exchanger.

Growing community of inventors

Stuttgart, Germany

Winfried Juschka