Experimental study on low-swirl shallow W-type combustion system for a small D.I. diesel engine

摘要

The experiments were made on the direct-injection combustion system consisting of the shallow W-type combustion chamber and the intake port with shorter passage length and weaker swirl intensity which leads to lower requirements for manufacturing the engine cylinder head, in a small-bore single-cylinder diesel engine. Test results are satisfactory. Based on performance characteristics and heat release rate curves measured in different behavior under various matches of combustion chamber design and fuel-injection system, authors have discussed each effect of design parameters on engine performances and combustion characteristics, and put forward the key points for optimization of the combustion system match.