Exhaust gas recirculation for an internal combustion engine and method therefor

Abstract

An internal combustion engine () includes a crankcase () having a plurality of cylinders (). An exhaust system () is in fluid communication with the plurality of cylinders () and includes a turbine () in operable association with a compressor (). An intake system () is in fluid communication with the plurality of cylinders () and the compressor (). A first EGR cooler () is in fluid communication with the exhaust system () through an inlet passage () that is connected to the exhaust system () between the plurality of cylinders () and the turbine (). A second EGR cooler () is in fluid communication with the intake system () through an outlet passage () that is connected between the plurality of cylinders () and the compressor (). A transfer passage () is disposed between the first EGR cooler () and the second EGR cooler (). The transfer passage () contains an EGR valve () that is arranged and constructed to control a flow of fluid through the transfer passage () while the internal combustion engine () operates.