Internal combustion engine, has mixing pipe, having curvature ranging between certain degrees, arranged before inlet in air manifold, with respect to one axis that is arranged parallel to longitudinal axis of engine

摘要

The engine has an exhaust gas recirculation device (1) to recirculate exhaust gas from an exhaust gas tract to a suction tract. A recirculated exhaust gas discharging area is arranged in a mixing pipe (4) in the flow direction of fresh air, before from an air manifold (5). The pipe has a curvature ranging between 250 and 340 degree before an inlet in the air manifold, with respect to an axis that is arranged parallel to a longitudinal axis of the engine.