Exhaust gas recirculation device for combustion engine, comprises turbocharger, which is set in inlet system for sucking air under pressure, and intercooler for cooling intake air by heat exchange with coolant circulated through intercooler

摘要

The exhaust gas recirculation device comprises a turbocharger (40), which is set in an inlet system for sucking air under pressure, and an intercooler (23), which is provided for cooling the pressurized intake air by the heat exchange with a coolant circulated through the intercooler. An exhaust gas recirculation passage (51) is provided for feedback of the exhaust gas from the exhaust gas system to the inlet system. A frost limiting unit is provided for controlling the exhaust gas recirculation valve.