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[가솔린엔진부문] Pd-Only 삼원 촉매 개발 : 촉매의 OBD-Ⅱ Monitioring을 위한 특성 조절
송진우(Jinwoo Song),강희천(Heecheon Kang),한현식(Hyunsik Han) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_1
Development of tailor-made Pd-only catalyst for CCC application was tried out to achieve the optimized performance of CCC+ UCC system and the reliable 080-11 monitoring, based on the OSC deterioration of CCC with mileage. From the OSC and catalytic activity evaluation for powder and honeycomb catalysts, we found that it could be possible to a 이 ust CO and NOx performance without significant change in HC performance by choosing the proper OSC material. Also it was found that the catalyst with different OSC material showed a different pattern of OSC deterioration with engine bench aging.
[가솔린엔진부문] 촉매 변환기의 냉시동 성능 평가 방법 : Fast Light-off Test
연태헌(Taechun Yeon),강희천(Heecheon Kang),한현식(Hyunsik Han) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Most of THC emission during FTP test comes from the cold-start phase. Increasing the cell density of honeycomb substrate and precious metal loading has been considered as effective way to reduce the cold-start emission. This paper describes the new evaluation method. fast light-off test, which can be effectively applied for the cold-start performance of catalytic converter. It was found that fast LOT method could be an effective way to investigate the characteristics of catalytic converter including catalyst itself