Effect of secondary mixing on fuel ignition and combustion in a diesel engine

The possibility of improving air-fuel mixture ignition by optimal contouring of the wall on which the jet is incident is confirmed. It is also shown that a decrease in the limiting temperature and in the ignition delay leads, in turn, to an increase in fuel-combustion efficiency, which ensures faster stabilization of engine operation after starting. Under diesel-engine nominal rating conditions, secondary mixing no longer has a profound effect on ignition and combustion processes.