|
|||||
|
|
| 增压缸内直喷汽油机抑制预燃试验 | |
| 引用本文： | 张志福,梁兴雨,刘国庆,王志,杨万里,王建军.增压缸内直喷汽油机抑制预燃试验[J].燃烧科学与技术,2012(2):156-160. |
| 作者姓名： | 张志福 梁兴雨 刘国庆 王志 杨万里 王建军 |
| 作者单位： | 1. 天津大学内燃机燃烧学国家重点实验室,天津300072 2. 奇瑞汽车股份有限公司发动机工程研究院,芜湖241009 3. 清华大学汽车安全与节能国家重点实验室,北京100084 |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2006AA110106);天津大学内燃机燃烧学国家重点实验室开放基金资助项目(K2010-04) |
| 摘 要： | 预燃是增压缸内直喷汽油机上与普通爆震不同的异常燃烧模式,通过阐述预燃的特征,对比分析了预燃与常规爆震和正常燃烧的基本不同.通过初步分析预燃产生机理,指出了可能抑制预燃的主要手段,试验研究了冷却水温度、点火角、进气相位等对预燃的影响.试验结果表明,降低冷却水温度,优化进气相位,可以一定程度抑制预燃;提前点火角,发生轻微常规爆震,但未出现预燃 |
| 关 键 词： | 增压 缸内直喷 预燃 爆震 |
Investigation on Pre-Ignition Suppression of Turbo-Charged GDI Engine |
|
| ZHANG Zhi-fu,LIANG Xing-yu,LIU Guo-qing,WANG Zhi,YANG Wan-li,WANG Jian-jun.Investigation on Pre-Ignition Suppression of Turbo-Charged GDI Engine[J].Journal of Combustion Science and Technology,2012(2):156-160. | |
| Authors: | ZHANG Zhi-fu LIANG Xing-yu LIU Guo-qing WANG Zhi YANG Wan-li WANG Jian-jun |
| Affiliation: | 1.State Key Laboratory of Engines,Tianjin University,Tianjin 300072,China;2.Engine Engineering Research Institute,Chery Automobile Company Limited,Wuhu 241009,China;3.State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China) |
| Abstract: | Pre-ignition was found on boosted gasoline direct injection(GDI) engine.Phenomena and characteristic of pre-ignition were introduced.Differences of pre-ignition,normal knocking and normal combustion were compared.By analyzing possible root cause for pre-ignition,major suppression approaches were carried out on test-bench.The effects of cooling water temperature,spark advance and intake valve timing on pre-ignition were investigated.The results show that lower cooling water temperature and optimized intake valve timing lead to lower intensity of preignition.Advancing spark advance leads to slightly normal knocking instead of pre-ignition. |
| Keywords: | turbo-charge direct injection pre-ignition knocking |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
