三菱UE機関における低圧EGRシステムの開発

抄録

At the MEPC66, it was decided that as of 2016, IMO Tier III regulations would require nitrogen oxides (NOx) reductions of approx. 76% from Tier II levels. To comply with IMO Tier III regulations, we have developed a low pressure Exhaust Gas Recirculation (LP-EGR) system that has strong NOx reduction potential. It has been confirmed through studies using our 4UE-X3 test engine that the NOx emissions of our LP-EGR system comply with IMO Tier III regulations and that the increase in fuel consumption was less than 1.5%. Recently, an engine integrating almost every component of the LP-EGR system was applied to the 4UE-X3. Through tests and evaluations of this system, we carefully worked out the consumption volumes and life-cycle costs of our LP-EGR system. As a result, the system is IMO Tier III regulation-compliant and offers advanced environmental protection and user-benefits.