커먼레일 분사시스템을 장착한 직접분사식 단기통 디젤 가시화엔진의 연소특성

Abstract

An optical single cylinder diesel engine equipped with a common-rail injection system has been built to investigate diesel combustion and emission characteristics. Three optical widows (piston crown quartz for bottom view of the cylinders upper piston quartz for allowing laser sheet and liner quartz for side view) hale bean placed in the optical engine to visualize spray Characteristics and combustion process inside the cylinder. Before doing further research using various optical diagnostics with the optical engine, fundamental combustion experiments have been carried out with a wide range of engine operating conditions. The engine proved satisfactory, proper motoring in-cylinder pressure, allowable low cycle by cycle variation during combustion, similar trend with previously published results for various engine operating conditions. The research with the optical engine will, therefore, be extended further with variety of optical and laser diagnostics.