Device and method for cooling exhaust gas
AssigneeBehr GmbH & Co.
InventorsUlrich Maucher, Jens Ruckwied
Life of this patent
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Abstract
A device for cooling exhaust gas from an internal combustion engine comprises a plurality of flow ducts which are connected to an exhaust gas recirculation system of the internal combustion engine, a heat exchanger for a coolant to flow around the flow ducts in order to dissipate the exhaust gas heat, and an insert 7, 7′ which is arranged within at least one of the flow ducts. The insert 7, 7′ is in thermal contact with the flow duct such that the exhaust gas flows at least partially around the insert. The insert 7, 7′ has profiled fins 8, 8′, with profiles 9, 9′ which are successive in the flow direction of the exhaust gas being arranged so as to be laterally offset relative to one another.
Claims25
An exhaust gas recirculation device for cooling exhaust gas from an internal combustion engine, comprising
- a plurality of exhaust flow ducts which are connected to an exhaust gas recirculation system of the internal combustion engine,
- a heat exchange system providing a coolant to flow around the flow ducts in order to dissipate exhaust gas heat,
- an insert which is arranged within and in thermal contact with at least one of the flow ducts, to permit exhaust gas to flow at least partially around the insert in a principal direction of exhaust gas flow, wherein
- the insert comprises a plurality of profiled fins extending laterally across the at least one flow duct and arranged successively in the principal direction of exhaust gas flow, with the individual profiles of the profiled fins which are located successive in the principal flow direction of the exhaust gas being arranged so as to be laterally offset relative to one another.
Dependencies are inferred from the claim text.