Influence of Hot Residual Gas on Combustion State with Internal EGR

Abstract

In this research, the effect of hot residual gas, resulting from the application of a certain level of internal EGR, on combustion was investigated using a two-cycle engine and gasoline as the test fuel. Measurements were made of the ion current, cylinder pressure and combustion chamber inner wall temperature. Data were measured and analyzed on SI (Spark-Ignition) operation and AI (Auto-Ignition) operation.