EXHAUST GAS RECIRCULATION DEVICE IN INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To improve distribution performances of exhaust gas to each cylinder in an exhaust gas recirculation device in which an exhaust gas distribution passage 20 to each cylinder formed inside a spacer member 14 put between an intake manifold 8 and an intake side surface 3 of an internal combustion engine 1 comprises a main distribution passage 21 and branch distribution passages 22-25 to each cylinder from the main distribution passage, and an exhaust gas introduction part 26 from an exhaust system is disposed at an outside of a cylinder A4 positioned at the outermost position of the cylinders. SOLUTION: Length of the branch distribution passages 22-25 at each cylinder is arranged in such a manner that it is longer at the cylinder A4 nearest to an exhaust gas discharge port out of the cylinders. COPYRIGHT: (C)2011,JPO&INPIT