预燃室点火控制对大功率稀燃天然气发动机性能影响的试验研究

Experimental Study on The Influence of Ignition Control of Precombustion Chamber on The Performance of High-power Lean Burn Natural Gas Engine

介绍了大功率天然气发动机采用的稀薄燃烧的技术特点,以及为实现稀薄燃烧所采用的预燃室点火控制的主要结构和特点。为研究预燃室点火控制对于发动机性能的影响,设计了三种不同类型的试验方案,分别对预燃室进气喷射提前角、预燃室进气喷射压力、预燃室进气喷射持续期进行试验研究,为大功率稀燃天然气发动机性能优化提供了技术依据。

This paper describes the technical characteristics of lean combustion used in high-power natural gas engine and the main structural characteristics of precombustion chamber ignition control used to realize lean combustion.In order to study the influence of precombustion chamber ignition control on engine performance,three different types of test schemes are designed.The inlet injection advance angle,inlet injection pressure and inlet injection duration of the precombustion chamber are experimentally studied.It provides a technical basis for the performance optimization of high-power lean burn natural gas engine.