Eberspächer Exhaust Technology Gmbh & Co. Kg

J. Eberspaecher Gmbh & Co. Kg

Continental Automotive Gmbh

Purem Gmbh

Jörg Oesterle

Arnulf Spieth

Andreas Resch

Angela Hettel

Ming Dong

Georg Wirth

Enver Kurpejovic

Carsten Kruse

Thomas Nording

Thomas Nagel

Sebastian Leicht

Anika Bürkle

Herve Tchamgoue

Rolf Jebasinski

Ralf Mohr

Jan Hänisch

Angela Sachse

Jörg-Uwe MÜLLER

A thermoelectric module (), for converting thermal energy into electric energy, includes a plurality of leg pairs (), which have each a p-doped semiconductor leg () and an n-doped semiconductor leg (), which are contacted with one another electrically via metal bridges (). At least one electrically insulating ceramic plate (), which is arranged on a hot side () of the thermoelectric module () or on a cold side () of the thermoelectric module () and is flatly in contact with metal bridges () associated with this side () and is fastened thereto. The pressure stability of the thermoelectric module () can be improved if the respective ceramic plate () is segmented, so that a plurality of ceramic plate segments () are arranged next to each other, which are each flatly in contact with a plurality of metal bridges () and are fastened thereto.

Thermoelectric module, heat exchanger, exhaust system and internal combustion engine

The present invention relates to an exhaust system for a combustion engine, more preferably of a road vehicle, with at least one exhaust gas-conducting component having a ring-shaped closed inner wall in circumferential direction, whose inner side is exposed to the exhaust gas. The energetic efficiency of the combustion engine can be improved with at least one thermoelectric generator which converts heat into electric energy and which is arranged on an outer side of the inner wall.

Exhaust system with thermoelectric generator

A heat exchanger, for an exhaust gas system () of an internal combustion engine (), includes a thermoelectric module (), converting thermal energy into electrical energy, having a hot side () and a cold side (). A cooling pipe (), for a cooling fluid, is arranged on the cold side () and a heating pipe () for a heating fluid, is arranged on the hot side (). The cooling pipe () and the heating pipe () are stacked with the thermoelectric module () in a stacking direction () and form a stack (). The heat transfer within the stack () is improved with at least one of the pipes () being curved toward the thermoelectric module () at an outer pipe face () and with the thermoelectric module () curved toward the pipe () at an outer module face () facing the particular pipe ().

Thermoelectric module with heat exchanger

A heat exchanger (), of e.g. an exhaust gas system () for an internal combustion engine (), includes a thermoelectric generator () having a hot side () and a cold side () and including a heating tube () on a hot side of a heating device (), and a cooling tube () on a cold side of a cooling device (). The heating tube and the cooling tube are stacked on one another and form a tube stack (), with the heating tube and the cooling tube extending parallel to one another in a longitudinal direction () of the tube stack. For energy efficiency, a housing () of the heat exchanger has a jacket () with an integral re-tensioning section () that is resiliently adjustable between a relaxed state and a tensioned state. The pre-tensioning section generates a pre-tensioning force () pressing the tube stack in a stacking direction ().

Thermoelectric generator with heat exchanger

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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Laichingen, Germany

Jörg Oesterle