EGR cooler purging apparatus and method

摘要

An apparatus for an internal combustion engine ( 200 ) includes a base engine ( 201 ) having an intake system ( 217 ) and an exhaust system ( 209 ). A turbine ( 203 ) has an inlet in fluid communication with the exhaust system ( 209 ), and an outlet. A first exhaust gas recirculation (EGR) cooler ( 211 ) fluidly communicates with the intake system ( 217 ) and the exhaust system ( 209 ) of the engine ( 200 ). An EGR valve ( 213 ) is in fluid communication with the EGR cooler ( 211 ), and a purge valve ( 205 ) is in fluid communication with the EGR cooler ( 211 ) and the outlet of the turbine ( 203 ).