직접분사식 가솔린 엔진을 이용한 CAI 연소특성 및 운전 영역 확대를 위한 성층 연소 특성에 관한 연구
- Title
- 직접분사식 가솔린 엔진을 이용한 CAI 연소특성 및 운전 영역 확대를 위한 성층 연소 특성에 관한 연구
- Other Titles
- A Study on the CAI Combustion Characteristics and Stratified Combustion to Extend the Operating Region Using Direct Injection Gasoline Engine
- Author
- 이기형
- Keywords
- CAI(Controlled Auto ignition,가솔린 자착화); HCCI(Homogeneous charge Compression Ignition, 예혼합 압축 착화); NVO(Negative Valve Overlap); EVC(Exhaust Valve Close, 배기밸브 닫힘); IVC(Intake Valve Close, 흡기 밸브 닫힘); EGR(Exhaust Gas Recirculation, 배기가스재순환)
- Issue Date
- 2006-09
- Publisher
- 한국자동차공학회
- Citation
- 한국자동차공학회논문집, v. 14, No. 5, Page. 25 - 31
- Abstract
- Controlled Auto Ignition(CAI) combustion has great potential in achieving significant increase in engine efficiency, while simultaneously reducing exhaust emissions. The process itself involves the auto ignition and subsequent simultaneous combustion of a premixed charge.
In this study, NVO (Negative Valve Overlap) system was applied to a CAI engine in order to use residual gas. The fuel was injected directly to the cylinder under the high temperature condition resulting from heating the intake port to initiate CAI combustion. This paper introduced the valve timing strategy and experimental set-up. From this study, the effect of engine speed and valve timing on CAI combustion and exhaust emissions was clarified. In addition, stratified charge method was used to extend CAI operating region.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00747900&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/108741
- ISSN
- 1225-6382
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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