文档介绍：柴油机喷油系统的排放控制技术研究
摘要:柴油机净化的关键是如何有效地消除NOχ和微粒碳烟的生成量。文章从喷油系统出发,提出了改进排放的五种切实可行的方法,具有明显的现实意义。
Abstract: purifying diesel engine is the key to how to effectively eliminate the NO and carbon particles in the smoke generation. Article embarks from the fuel injection system, and puts forward the improved emissions of five kinds of practical methods, has obvious practical significance.
关键词:柴油机;排放控制;措施
Key words: diesel engine; Emission control; measures
柴油机的有害排放取决于柴油机混合气形成及缸内燃烧过程,而这些归根到底是由喷油、气流、燃烧系统以及缸内工作特质的配合所决定的。柴油机净化的关键,是如何有效地消除NOχ和微粒碳烟的生成量。恰恰这两项排放物的生成规律常常是互相矛盾的。因此,任何一个单项措施总有它的负面影响。人们总是在采取某项措施的同时,应用另一项措施来加以补救和平衡。最后,常常是多项措施的综合应用,才使排放性能达到一个新的水平。柴油机是一个多性能、多工况、多因素综合影响的统一体,再加上各种各样的排放净化措施,如何进行优选、折中和综合控制是一个极为困难和复杂的问题。柴油机的电子控制和综合管理是有效解决这一问题的最佳途径,也是使各种机内净化措施得以充分发挥效用的保证。在所有净化措施中,喷油系统的改进无疑是最为重要的环节。
The harmful emissions of diesel engine depends on the mixture formation bustion process in cylinder of diesel engine, which are in the final analysis is by injection in cylinder, air flow, combustion system and working characteristics of cooperation. Purification of diesel engine key is how to effectively eliminate the NO and carbon particles in the smoke generation. Just this two emissions generated rules are often contradictory. Therefore, any single measure always has its negative effects. People are always in a measures at the same time, application of another steps to remedy them and balance. Finally, often is prehensive application of measures to make emissions performance to a new level. Diesel engine is more than a performance and working condition and factor synthesis influence continuum, plus various emissions purification measures, how to carry out optimization, compromise, and integrated control is an extremely difficult plex problem. Diesel engine electronic control and integrated management is the best way to solve this problem, effective also allows various internal purification measures to give full play to utility. Of (among) all the purification measures, improve