직접분사식 디젤기관의 연소실 형상에 따른 연소과정의 화상분석 = The Image Analysis of Combustion Process by the Combustion Chamber Shape in a D.I. Diesel Engine

다국어 초록 (Multilingual Abstract)

In this study, the observation window was installed in the piston head of single cylinder that four stroke engine was remodeled into two stroke engine and its the combustion process was observed by the high speed video camera. The piston cavity configurations of four kinds, which consider the effects of the growth of the fuel spray and air flow, were made and the progress process of combustion flame was analyzed at engine speed 1100 rpm as varying scavenging pressure. As a result of experiment, we found out that the piston configuration of deep dish type is easy to diffuse combustion flame from piston cavity to compression clearance and the piston configuration of re-entrant type is easy to form ignition nuclei. According to increasing scavenging pressure, we saw that the growth progress of combustion flame is increased in all the piston configurations. We could find out the optimum configuration of combustion chamber.

목차 (Table of Contents)

• 1.서론
• 2.실험장치 및 실험방법
• 2.1 실험장치
• 2.2 실험방법
• 3.실험 결과 및 고찰
• 3.1 연소실 형상 변화에 따른 화상분석
• 3.2 급기압의 변화가 연소화염에 미치는 영향
• 4.결론
• 참고문헌