가솔린 직접분사식 HCCI 엔진의 혼합기 제어에 의한 연소 및 배기 특성에 관한 실험적 연구
- Title
- 가솔린 직접분사식 HCCI 엔진의 혼합기 제어에 의한 연소 및 배기 특성에 관한 실험적 연구
- Other Titles
- An Experimental Study on the Characteristics of Combustion and Emission in a Gasoline Direct Injection Type HCCI Engine by Controlling Mixture Formation
- Author
- 이기형
- Keywords
- HCCI(예혼합 압축착화); Cool flame(냉 염); Split injection(2단분사); Two-stage ignition(2단연소); Stratification charge(성층혼합기); Homogeneous charge(균일혼합기); RC)HR(열발생률)
- Issue Date
- 2004-08
- Publisher
- 한국자동차공학회
- Citation
- 한국자동차공학회 논문집, v. 12, No. 4, Page. 24-30
- Abstract
- As the environmental pollution becomes serious global problem, the regulation of emission exhausted from automobiles is strengthened. Therefore, it is very important to know how to reduce the NOx and PM simultaneously in diesel engines, which has lot of merits such as high thermal efficiency, low fuel consumption and durability. By this reason, the new concept called as Homogeneous Charge Compression Ignition(HCCI) engines are spotlighted because this concept reduced NOx and P.M. simultaneously. However, there is trade off between output and NOx in a HCCI engine. In this study, output and emission characteristics for a gasoline direct injection type HCCI engine were investigated to clarify the effects of intake air temperature, injection time and mixture formation. From these experiments, we found that the smoke was not produced when the fuel was injected earlier than BTDC 90� In addition, the output was increased because of delay of ignition time and NOx emission was decreased because of homogeneous charge of first njection in case of split injection.
- URI
- https://information.hanyang.ac.kr/#/eds/detail?an=edskci.ARTI.389747&dbId=edskcihttps://repository.hanyang.ac.kr/handle/20.500.11754/151665
- ISSN
- 1225-6382
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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