Behr Gmbh Co. Kg

Mahle Behr Gmbh & Co. Kg

Markus Wallraven

Jürgen Rosin

Bernhard Bronischewski

Ulrich Fassbender

Manfred Heinze

Andreas Krien

The invention relates to an exhaust gas heat exchanger comprising a bundle of pipes consisting of exhaust gas pipes and a bypass channel in a common housing. The pipe bundle is arranged in a first chamber that is crossflown by a liquid coolant and the bypass channel is arranged in a second, separate chamber. The pipe bundle and the by pass channel lead into a common exhaust gas inlet area and a common exhaust gas outlet area in which an exhaust gas valve actuated by a servo-drive is arranged, said valve guiding the exhaust gas flow through the pipe bundle or the bypass channel. According to the invention, the exhaust gas valve has a movable closing organ that is resistant to bending, said organ being preferably embodied as a pivoting semi-flap that is fixed with a longitudinal side to a drive shaft that is arranged crosswise relative to the exhaust gas flow.

Exhaust gas heat exchanger

The invention relates to an exhaust gas heat exchanger () comprising a bundle of pipes () consisting of exhaust gas pipes () and a bypass channel () in a common housing. The pipe bundle is arranged in a first chamber that is crossflown by a liquid coolant and the bypass channel is arranged in a second, separate chamber. The pipe bundle and the bypass channel lead into a common exhaust gas inlet area and a common exhaust gas outlet area in which an exhaust gas valve actuated by a servo-drive is arranged, said valve guiding the exhaust gas flow through the pipe bundle or the bypass channel. According to the invention, the exhaust gas valve has a movable closing organ that is resistant to bending, said organ being preferably embodied as a pivoting semi-flap () that is fixed with a longitudinal side () to a drive shaft () that is arranged crosswise relative to the exhaust gas flow (A).

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Neuss, Germany

Markus Wallraven