ENGINE EXHAUST RECIRCULATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To keep effect for improving fuel economy, while suppressing heat damage to intake parts made of material other than metal such as resin, even under a condition of a large amount of EGR on high load. SOLUTION: An engine in which air is introduced into a combustion chamber 5 through the intake parts 2, 3 made of material other than metal, comprises: an outside EGR device 26 adjusting an outside EGR rate or an outside EGR gas amount; an inside EGR device 29 adjusting an inside EGR rate or an inside EGR gas amount; and a sharing ratio control means 31 changing the outside EGR rate or outside EGR gas amount and the inside EGR rate or inside EGR gas amount depending on engine load conditions, decreasing the sharing ratio of the the outside EGR rate or outside EGR gas amount and increasing the sharing ratio of the inside EGR rate or inside EGR gas amount, as the engine load becomes higher. COPYRIGHT: (C)2004,JPO&NCIPI