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스파크 점화 기관에서 흡·배기 밸브의 밀착 이상에 의한 연소특성에 관한 연구
박경석(Kyoungsuk Park),손성만(Sungman Son),장성혁(Sukhyung Jang),한성철(Sungchul Han) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
The suction pressure of an abnormal condition spark ignition engine which has non adjusting intake valves becomes reduced and residual gas increases at a greater rate than under normal combustions. This reduction in suction pressure is caused by the distribution of in equalable air in a cylinder leading to abnormal combustion. If this condition continues, the engine ceases due to an increase in engine heat loss.<br/> In this study, we conducted tests to determine the combustion characteristics of a spark ignition engine under both normal and abnormal conditions. The results of this study will establish basic data analysis for developing an automotive diagnosis system by analyzing some of the factors including pressure in the cylinder, output signal of the MAP Sensor and Exhaust gases.