Journal of Power System Engineering (동력기계공학회지)
- Volume 12 Issue 4
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- Pages.5-11
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- 2008
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- 2713-8429(pISSN)
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- 2713-8437(eISSN)
Study on Combustion Characteristics with Fuel Injection Timing in a RI-CNG Engine
RI-CNG 엔진에서 연료 분사시기에 따른 연소특성에 관한 연구
- Park, J.S. ;
- Ha, D.H. ;
- Yeum, J.K. ;
- Ha, J.Y. ;
- Chung, S.S.
- 박종상 (동아대학교 기계공학과) ;
- 하동흔 (동아대학교 기계공학과 대학원) ;
- 염정국 (동아대학교 기계공학과) ;
- 하종률 (동아대학교 기계공학과) ;
- 정성식 (동아대학교 기계공학과)
- Published : 2008.08.30
Abstract
The RI gasoline engine haying a sub-chamber had a high cycle variation due to the difficulty of the residual gas scavenge in the sub-chamber. To solve this problem and improve the combustion performance of RI engine, we devised a method to inject directly CNG fuel into the sub-chamber. A DI diesel engine of single cylinder was converted into a RI-CNG engine and an electronic control unit for the engine was manufactured. In this study, the combustion characteristics of the RI-CNG engine were investigated with the injection timings and air excess ratios at the load conditions of 50% throttle open rate and 1700rpm. As the results from this study, the RI-CNG engine worked reliably under the condition of the ignitable lean limit of
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