가스체 연료를 사용하는 압축착화기관에 관한 기초적 연구

다국어 초록 (Multilingual Abstract)

Natural gas is gaining more attraction as a future fuel in particular both for environmental protection and energy conservation. In order to bring about more widespread use of gaseous engines, the technology capable of achieving output and efficiency performance equivalent to that of diesel engines needs to be developed.<br/>
In the present paper, the requirements of the pilot torch from pre-chamber for ensuring ignition and promoting combustion are discussed by means of taking high-speed flame photography and measuring pressure-time relation between both chambers. As the results. the pilot torch ignition system can run with leaner mixture of various fuels comparing to the electric plug ignition system can run with leaner mixture of various fuels comparing to the electric plug ignition system because the ignition delay period ignited with the torch and the combustion period are very short in spite of changing A/F of gaseous fuels in the main chamber. However. the suitable piston-cavity design for the use of lower-hydrocarbon fuels such as propane and butane must be discussed increasingly in the near future.