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56㎾급 오프로드 차량에서의 EGR 시스템 적용에 관한 연구
한준섭(Joonsup Han),강정호(Jeongho Kang),정재우(Jaewoo Chung),정건우(Gunwoo Jeong),조규백(Gyubaek Cho),임중호(Jungho Lim),설동우(Dongwoo Seol) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Generally, mobile sources of air pollution were classified in on-road and non-road. Non-road vehicle usually has been using the diesel engine. That has a disadvantage for many NOx emission. CRDi and system were applied for the exhaust gas emission regulation on diesel vehicle. In the present agricultural machinery has been satisfied Tier 3 emission regulation through the WGT and internal EGR. However, the off-road vehicle faced with strengthened emission regulation about NOx and PM. In this paper, The combustion and emission characteristics had investigated for EGR system applied to 56㎾ Off-road vehicle. The EGR map had made from all kind of engine operating condition. The EGR map was made from foundation experiments and then it was applied on NRTC mode. As a result of this study, NOx emission was reduced through EGR system. NOx emission was more reduced 2nd EGR map than muffler and 1st EGR map.