The in-cylinder combustion phenomena of internal combustion engine have been the subject of many researches. However, a number of early studies were carried out by using the combustion pressure measurement or the visualization of flame propagation wit...
The in-cylinder combustion phenomena of internal combustion engine have been the subject of many researches. However, a number of early studies were carried out by using the combustion pressure measurement or the visualization of flame propagation with modifications of engine hardware or rig equipments and thus their applications to engine development process were rather I imi ted. In order to investicate the<br/>
flame propagation of the gasoline engine wi thout any modi fications of<br/>
<br/>
engine hardware, the ion probes are installed at cylinder head.<br/>
<br/>
The<br/>
<br/>
measurement technique is based upon the ion current detecting method. The applicability of the ion probe sensor is confirmed with a-engine<br/>
at different engine operating parameters.<br/>
The test results indicate that the ion probe sensor provides enough information of mean flame propagation speed and flame behaviors in the<br/>
combustion chamber.<br/>