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윤영배(Young-bae Yoon),최병철(Byung-Chul Choi),정우남(Woo-Nam Juhng),정명근(Myung-Gun Jung),신병선(Byeong-Seon Shin),유종표(Jong-Pyo Yoo) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, we investigated the characteristics of the conversion efficiency and the effect of aged Diesel Oxidation Catalyst (DOC). The DOC was composed of Warm-up Catalytic Converter (WCC) and Underbody Catalytic Converter (UCC). As the result, the conversion efficiency of THC was 10~50% on WCC and 40~50% on UCC. The conversion efficiency of CO was 80~90% on WCC and remained 10~20% of CO was purified on UCC. The WCC shows high conversion efficiency on CO. After 20 hours aging process of engine bench, conversion efficiencies of THC and CO were improved a little. It is because of activated catalyst surface by 20 hours aging. In case of 80 hours aging, the conversion efficiencies of THC and CO were decreased on WCC. However, the UCC was not affected by aging process.