Patent ID: 9038612
Filing Date: 2015-05-26
Classification: F02M,Y02T

Abstract:
1. An exhaust gas recirculation device for recirculating, from an exhaust system to an intake system, a part of exhaust gas discharged from each of a plurality of cylinders that are provided to a multi-cylinder engine as EGR gas, the device comprising: a single EGR pipe extending from the exhaust system toward the intake system of the engine; an EGR manifold provided to branch from a downstream end portion of the EGR pipe toward each of the plurality of cylinders; and an EGR valve for adjusting an amount of EGR gas to be recirculated to each cylinder through the EGR pipe and the EGR manifold, wherein the EGR manifold includes: wherein shapes of the one or more common EGR passages and the one or more independent EGR passages are respectively set so that a communicating path in the EGR manifold which communicates an arbitrary cylinder with a subsequent cylinder where a combustion is performed next to the arbitrary cylinder has the same volume for any combination of the cylinders of which the combustion order is adjacent therebetween.