EXHAUST GAS REFLUX DEVICE OF DIESEL ENGINE

摘要

PURPOSE:To make regeneration of trap and exhaust gas reflux control compatible in the exhaust gas reflux device of a diesel engine. CONSTITUTION:The exhaust gas reflux device of a diesel engine is provided with a means 92 which controls an exhaust gas reflux quantity via an exhaust gas reflux control valve 4 and an intake air throttle valve 8. There are provided a regeneration means 93 which throttles the opening of the intake air throttle valve 8 at the time of regenerating a trap 9 and an exhaust gas reflux rate correcting means 94 which maintains the exhaust gas reflux rate to the same level or reduces rate at the time of regeneration in comparison with that at the time of no-regeneration.