一种单燃料纯甲醇发动机冷起动技术研究
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摘要
文章针对目前甲醇汽车发动机生产厂家广泛采用的副油箱式辅助冷起动系统的缺陷,根据甲醇发动机的低温起动特性,研制了一种安装在进气总管的新型纯甲醇汽车发动机冷起动装置。该装置通过甲醇发动机进气预热冷起动技术,使得甲醇发动机低温起动时,甲醇燃料的蒸汽浓度能够达到着火点。试验结果表明,采用该冷起动技术后,甲醇发动机在环境温度为-10℃时可以实现冷起动,从而为单燃料纯甲醇发动机冷起动技术的应用与改进提供一定参考。
Aiming at the defects of the auxiliary oil tank type of the aided cold starting system widely used at present, a new cold starting system which was installed at intake manifold was developed, based on the starting characteristics of the methanol engine in low temperature. By means of the preheating cold start technology of the methanol engine, the methanol fuel reaches its ignition limit at low temperature starting. The results showed that the methanol engine equipped with the cold starting system had developed a successful cold start at an ambient temperature of-10 ℃, providing a foundation for the realization of pure methanol engine cold start technology.
Aiming at the defects of the auxiliary oil tank type of the aided cold starting system widely used at present, a new cold starting system which was installed at intake manifold was developed, based on the starting characteristics of the methanol engine in low temperature. By means of the preheating cold start technology of the methanol engine, the methanol fuel reaches its ignition limit at low temperature starting. The results showed that the methanol engine equipped with the cold starting system had developed a successful cold start at an ambient temperature of-10 ℃, providing a foundation for the realization of pure methanol engine cold start technology.
引文
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[2]张天舒.日本新能源汽车发展及对我国的启示[J].可再生能源,2014,32(2):246-252.
[3]袁宝良,洪建海.甲醇燃料在点燃式发动机上的应用研究[J].现代车用动力,2016(1):1-6.
[4]王文坤,王铁,曹贻森,等.甲醇/生物柴油/F-T柴油混合燃料燃烧特性与排放特性研究[J].可再生能源,2016,34(1):131-135.
[5]宫长明,王舒,刘家郡,等.环境温度对点燃式甲醇发动机冷起动性能的影响[J].吉林大学学报(工学版),2009,39(1):27-32.
[6]朱建军,寇子明,王淑平.纯甲醇发动机冷起动系统的研发[J].汽车工程,2011,33(4):298-302.
[7]孙彦龙,谭迎新,谢溢月,等.不同比例甲醇汽油的自燃温度测试研究[J].中国安全科学学报,2015,25(9):73-76
[8]申辛未.甲醇汽油发动机热机快速起动特性的试验研究[D].北京:北京工业大学,2015.
[9]朱庆功,张梦,包伟,等.甲醇汽车冷起动性研究[J].交通节能与环保,2013,9(4):33-36.
[10]宫长明,王舒,刘家郡,等.基于循环控制的点燃式LPG-甲醇发动机冷起动性能研究[J].车用发动机,2008(1):19-21.
[11]吴亚兰,王进,刘萌,等.纯甲醇发动机冷起动系统开发[J].车用发动机,2014(5):26-29.