【作者】 张人杰； 金英爱； 刘研；

【Author】 ZHANG Renjie, JIN Yingai, LIU Yan (Jilin University Thermal Energy Engineering Department, Changchun 130025)

【机构】 吉林大学热能系；

【摘要】 分析了改变进气组分对发动机燃烧过程的影响因素,针对在高原地区和特殊空气环境下发动机工作稳定性恶化、循环变动剧烈等问题,分析了现阶段的研究方法。增加发动机氧气的含量是一个有效的改善燃烧效率和减少排放物的方法,增加氧气的含量可以在燃料中添加碳氢氧化物,也可以采用高分子选择性气体分离膜提高进气口进入的空气中氧气的浓度。在富氧燃烧中,可以提高发动机的动办性,而且可以大幅度降低排放物中烟尘、CO和HC的浓度。更多还原

【Abstract】 The effect of altered inlet content on combustion of internal combustion engine has been analyzed in this paper. Typical investigation methods about operation stability worsen, cycle alteration acuteness of internal combust improve combustion efficiency and reduce emissions effectively. In order to improve oxion engine at altiplano area and special air environment. Adding oxygenous content of internal combustion engine canygenous content, oxygenated compositions are added in the fuel, or polymer membrane is used to enrich air with oxygen. The use of oxygen-enriched intake air can significantly reduce exhaust emissions, improve power density, lessen ignition delay, and allow the use of lower-grade fuels.更多还原