内燃机节能减排技术及未来发展趋势研究

Research on energy saving and emission reduction technology of an internal combustion engine and its future development trend

车辆节能减排已经成为现有研究的热点问题,作为车辆核心部件的传统内燃机也正面临着巨大的挑战。为了更加全面地总结现有内燃机的发展现状,主要从3个方面阐述:内燃机热效率提升技术、内燃机电气化技术和内燃机燃料多元化。从内燃机本身结构出发对现有的进气技术、燃烧技术和停缸技术进行概述。结合内燃机附件电气化以及2种混合动力车辆研究现状,综述内燃机电气化的趋势。再对内燃机燃料多元化在车辆动力中的关键作用进行分析。最后,探讨了内燃机节能减排技术未来发展趋势。

Vehicle energy conservation and emission reduction has become a hot issue in the existing research.As the core component of vehicles,the traditional internal combustion engine is facing great challenges.In order to more comprehensively summarize the development status of existing internal combustion engine,three aspects including thermal efficiency improvement technology,electrification technology and fuel diversification of an internal combustion engine were mainly demonstrated.Started from the geometry of an internal combustion engine,the existing intake technology,combustion technology and cylinder stop technology were summarized;combined with the electrification of its accessories and the research status of two hybrid vehicles,the trend of internal combustion engine electrification was summarized;then the key role of its fuel diversification in vehicle power was analyzed.Finally,the future development trend of energy saving and emission reduction technology of internal combustion engine was discussed.