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북미 Tier2 Bin5 규제 대응용 Urea-SCR 차량 배기 선행 개발
전종익(Jong-ik Jeon),김충공(Chung-gong Kim),이해욱(Hae-wook Lee),김창대(Chang-dae Kim) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
It has been known that urea-SCR technology is promising solution to fulfill US Tier2 Bin5 legislation as SCR Catalyst is the most robust and long-term stable NOx reduction technology. The test was performed with SUV vehicle equipped with modified Euro-IV 3.0L V6 engine and aqueous urea dosing system. After-treatment system consisted of DOC(Diesel Oxidation Catalyst), CC-CPF(Closed Coupled Catalyzed Particulate Filter) and SCR(Selective Catalytic Reduction) Catalyst. This paper shows tailpipe NOx emissions results reduced the range of bin5(0.05g/mi NOx) levels at FTP cycle with green catalyst system and also remaining challenges, such as reducing THC emissions during heat-up condition, engine-out emissions optimization.