A new hcci combustion system for diesel engine based on the technologies of multi - pulse fuel injection and the bump combustion chamber was developed by professor su wan - hua in necl of tianjin university . the premixed homogenous combustion is realized by the technology of multi - pulse fuel injection 天津大学内燃机燃烧学国家重点实验室苏万华教授提出的基于多脉冲喷射技术和bump燃烧室的复合燃烧技术是一种能够实现均质燃油混合气快速燃烧的新hcci燃烧方式。