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정적 용기내의 직접 분사식 스파크 점화 성층 연소에 관한 연구
홍명석(M.S.Hong),장완식(W.S.Jang) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The direct injection stratified<br/> charge engine is considered to be a alternative to conventional spark ignition engines. It has the favourable features of high thermal efficiency. low carbon monoxide and nitric oxide emission levels as well as multifuel capability. I t has. however. the unfavourable feature of a high unburned hydrocarbon emission level. especially during light load operations. In this paper. fundamental studies on this system were carried out using a pancake type constant volume bomb. The effects of intensification of local premixing by tangential and radial fuel injection were examined experimentally. Unburned hydrocarbon emission levels wi th radial fuel injection were shown to be lower than those of tangential fuel injection cases. The stratification and mixing process of fuel jet and combustion process were observed by Schlieren photography.<br/>