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김득상(Duk-Sang Kim),강봉균(Bong-Gyun Kang),양창석(Chang-Seok Yang),엄인용(In- Yong Ohm),조용석(Yong-Seok Cho) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
UEGI (Unburned Exhaust Gas Ignition) is an alternative method for fast light-off of a catalytic converter. It ignites unberned exhaust mixture using two glow plugs installed in the upstream of the close-coupled catalysts(CCC). In addition, a hydrocarbon adsorber was applied to the UEGI system, for more effective reduction of HC emission. Engine bench tests show that the CCC reaches the light-off temperature faster compared with the Baseline exhaust system and HC and CO emissions are reduced significantly during the cold start. From vehicle tests it was observed that HC emission was reduced effectively, even the catalysts were aged. It is expected to develop a solution kit applicable to a new vehicle or used one, to meet the stringent emission regulations.<br/>