Diesel Knock Visualization of Premixed Charge Compression Ignition Combustion with a Narrow Injection Angle

협각 인젝터를 이용한 예혼합 압축착화 연소에서의 디젤 노킹 가시화

In this work, in-cylinder pressure measurements and high-speed direct imaging of the flame were performed in an optically accessible single cylinder diesel engine with premixed charge compression ignition combustion and a narrow injection angle. The results show that the frequency ranges of pressure ringing were 8.35 to 9 kHz and 12..2 to 13.1 kHz. The frequencies of the flame movement were shown as 8.7 kHz and 13 kHz. It was found that there is a direct relationship between the pressure ringing and the flame movement.