Diesel engine with turbocharger and a double-loop exhaust gas recirculation system

摘要

A turbocharged diesel engine having a dual loop exhaust gas recirculation system, comprising: a combustion chamber (30) communicating with an intake manifold (44) and an exhaust passage; a compressor (19b) disposed upstream of the intake manifold (44); Turbine arranged to exhaust path (19 a) for driving the compressor (19 b), - a particulate filter (20), which downstream of the turbine (19 a) is arranged in the exhaust path, - a high-pressure loop for exhaust gas recirculation, taken over which exhaust gas upstream of the turbine from the exhaust path and downstream of the compressor to the intake manifold, and - a low pressure loop for exhaust gas recirculation, via which exhaust gas downstream of the particulate filter (20) taken from the exhaust path and upstream of the compressor (19 a) to the intake manifold (44) can be returned, wherein a control is provided which in a first mode both the high pressure loop fe and the low pressure loop used for exhaust gas recirculation.