Patent ID: 7757678
Filing Date: 2010-07-20
Classification: F02B,F02M,Y02T

Abstract:
1. A method of operating an engine generating exhaust, the engine in a vehicle body, the engine further having an intake system turbocharger with an air-cooled intercooler, the method comprising: drawing exhaust gas recirculation from upstream of a turbine of the turbocharger; cooling the exhaust gas recirculation via a first airflow generated by vehicle body motion; cooling compressed engine induction air in the air-cooled intercooler via a second airflow; further cooling the exhaust gas recirculation via the second airflow; and delivering the further cooled exhaust gas recirculation to the cooled compressed engine induction air downstream of the intercooler and downstream of a compressor of the turbocharger, wherein the second airflow cools the exhaust gas recirculation while the exhaust gas recirculation is separate from the compressed engine induction air.