轻型车用柴油机高压共轨电控燃油系统优化及排放控制简析
2021-08-23杨明慧
杨明慧


摘 要:空气质量问题是目前各大城市需要重点解决的环境问题之一,因为其对打造宜居城市环境有非常重要的意义。对现阶段的城市空气环境做分析研究可知汽车尾气的大量排放对空气质量造成了显著的影响,因此在实践中为了改善大气质量,控制排放等措施的采取非常关键。对汽车尾气排放问题做综合讨论可知,要有效的控制排放,需要对柴油机尾气排放当中的碳烟和氮氧化物进行控制,电控高压共轨燃油系统在具体利用中可以有效的改善燃油的喷雾特性以及燃烧进程,在柴油器尾气控制方面发挥着重要的作用,所以文章就相关的内容进行分析,旨在为实践提供帮助与指导。
关键词:柴油机 高压共轨电控燃油系统 优化 排放控制
A Brief Analysis on the Optimization and Emission Control of the High Pressure Common Rail Electronically Controlled Fuel System of Diesel Engines Used in Light Vehicles
Yang Minghui
Abstract:The problem of air quality is one of the environmental problems that need to be addressed in major cities, because it is of great significance for creating a livable city environment. Analysis and research on the current urban air environment shows that the large amount of vehicle exhaust emissions have a significant impact on air quality. Therefore, in practice, to improve air quality, it is critical to take measures to control emissions. A comprehensive discussion on the issue of automobile exhaust emissions shows that to effectively control emissions, it is necessary to control the soot and nitrogen oxides in diesel exhaust emissions. The electronically controlled high-pressure common rail fuel system can effectively improve fuel spray in specific applications. The characteristics and combustion process play an important role in diesel exhaust control, so the article analyzes the relevant content to provide help and guidance for practice.
Key words:diesel engine, high pressure common rail electronically controlled fuel system, optimization, emission control
柴油機在社会应用实践中有诸多优势,比如功率密度大、热效率较高、耐久可靠、经济性好等,这些优势使得柴油机在轿车、机车、船舶等领域得到了广泛的应用。对柴油机的现实应用做分析可知在重型货车中,柴油机占据着主导地位,且在轻型车领域,其应用范围也在不断的扩大[1]。我国柴油机市场发展迅速,目前已经具有了非常大的规模。总结当前柴油机的具体应用发现其存在着非常显著的环境问题,比如与汽油机相比,柴油机排放的氮氧化物和颗粒物比较高。基于统计数据进行对比,大气中存在的氮氧化物和颗粒物,柴油机车的排放占比为70%和90%,所以在实践中,为了充分的发挥柴油机的优势,且要实现柴油机污染物排放控制,需要对柴油机的具体应用做分析,并针对实践采用合理的控制手段。……
