Patent ID: 7478630
Filing Date: 2009-01-20
Classification: F01N,F02M,F28D,F28F,Y02A,Y02T

Abstract:
1. 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.