Experimental and Numerical Study of a Methane-Fueled Pre-chamber System in Rapid Compression Machine

Pre-chamber jet ignition is a promising combustion technology to accelerate burning velocity and improve combustion stability in natural gas engines. In this study, firstly, the ignition characteristics and the dilution limits in passive pre-chamber system with different orifice diameters were experimentally investigated based on a rapid compression machine (RCM). Methane (CH4) was used as the test fuel and CO2/N2 was used as the dilution...