Eberspächer Exhaust Technology Gmbh & Co. Kg

J. Eberspaecher Gmbh & Co. Kg

Purem Gmbh

Anika Bürkle

Jörg Oesterle

Angela Hettel

Ming Dong

Arnulf Spieth

Enver Kurpejovic

Georg Wirth

Krishna Kumar Vempati

Ruben Hass

Oleksandr Semenov

David Binder

Gita Feyl-Narrain

Steffen Glaser

Bernd Westerhoff

Angela Sachse

An exhaust system, especially for an internal combustion engine of a vehicle, includes an exhaust gas-carrying duct () and a reactant injection device () for injecting reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying duct (). Downstream of the reactant injection device (), a mixer device () supports the mixing of reactant (R) injected by the reactant injection device () with exhaust gas (A) flowing in the exhaust gas-carrying duct (). Downstream of the reactant injection device () and upstream of the mixer device (), a reactant heating device () extends in the exhaust gas-carrying duct (). The exhaust gas (A) flows in and reactant (R) injected through the reactant injection device () flow around the heating device ().

Exhaust system, especially for an internal combustion engine of a vehicle

A heat exchanger () for an exhaust system () of an internal combustion engine (), includes a heating tube () for carrying hot exhaust gas and a cooling tube () for carrying a liquid cooling agent. A thermoelectric generator () generates an electric voltage from a temperature difference and is arranged with the adjacent tubes in a stacking direction () to form a stack (). A support tube () is supported in the stacking direction on wall sections () of the respective tube (), which wall sections mutually face each other, and is arranged in the respective heating tube () and/or cooling tube (). Increased energy efficiency is achieved if at least two support tubes (), which differ from one another by tube length and/or tube end () and/or by tube cross sections, are arranged in the respective tube () at right angles to a longitudinal direction ().

Heat exchanger

The present invention relates to a heat transfer device, more preferably for an exhaust system of a combustion engine, preferentially of a motor vehicle, with at least one warm tube for conducting a fluid emitting heat, with at least one cold tube for conducting a fluid absorbing heat and with at least one thermoelectric generator for generating electric energy from a temperature difference, wherein a thermoelectric generator each is arranged between a warm tube and a cold tube. The efficiency of the heat transfer device is improved if the respective thermoelectric generator is in contact with the respective tube via a heat conducting material and if the respective heat conducting material is configured as shaped body.

Heat transfer device and manufacturing method

The present invention relates to an arrangement for the heat transfer between a tubular body suitable for conducting a fluid and a contact body that is in contact with said tubular body, wherein the contact body comprises a contact side facing the tubular body, with which the contact body is in contact with an outside of the tubular body facing the contact body, wherein in a tensioned state of the arrangement a preload force presses the contact body against the tubular body in a preload direction. A high heat transfer efficiency even over an operating temperature range can be achieved if the outside in an un-tensioned state of the arrangement is convexly curved towards the contact body, if the outside in the tensioned state is deformed relative to the un-tensioned state and bears against the contact side surface-to-surface, and if in the interior of the support body a support structure is arranged, which in the tensioned state supports itself on two inner sides of the tubular body located opposite each other in the preload direction.

Heat transfer arrangement, heat transfer device and manufacturing method

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Stuttgart, Germany

Anika Bürkle