| 掺烧比对电控共轨柴油机燃用 LNG-柴油双燃料燃烧特性的影响 |
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| 引用本文： | 宋建桐,张春化,吕江毅.掺烧比对电控共轨柴油机燃用 LNG-柴油双燃料燃烧特性的影响[J].车用发动机,2016(5):33-37. |
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| 作者姓名： | 宋建桐 张春化 吕江毅 |
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| 作者单位： | 1. 北京电子科技职业学院汽车工程学院,北京,100176;2. 长安大学交通新能源开发、应用与汽车节能陕西省重点实验室,陕西 西安,710064 |
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| 基金项目： | 北京市教育委员会科技计划面上项目(KM201410858004)；陕西省交通新能源开发、应用与汽车节能重点实验室开放课题资助项目(2014G1502035) |
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| 摘 要： | 为了在柴油机上使用液化天然气（LNG），将电控共轨柴油机改装为柴油引燃天然气的双燃料发动机，通过天然气喷嘴将 LNG 喷入进气管。利用双燃料发动机台架试验，对比分析了转速为1200 r／min ，100％负荷下，掺烧比对电控共轨柴油机燃用 LNG‐柴油双燃料燃烧特性的影响。研究结果表明，随着掺烧比的增大，双燃料发动机的缸内压力先升高后降低，压力升高率和瞬时放热率增大，峰值压力循环变动系数增大。
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| 关 键 词： | 共轨柴油机 天然气 双燃料 掺烧比 燃烧特性 |
Effects of Fuel Mixing Ratio on Combustion Characteristics of Electronic Control Common Rail Diesel Engine Fuelled with LNG-diesel Dual Fuel |
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| SONG Jiantong,ZHANG Chunhua,LV Jiangyi.Effects of Fuel Mixing Ratio on Combustion Characteristics of Electronic Control Common Rail Diesel Engine Fuelled with LNG-diesel Dual Fuel[J].Vehicle Engine,2016(5):33-37. |
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| Authors: | SONG Jiantong ZHANG Chunhua LV Jiangyi |
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| Abstract: | For the availability of liquefied natural gas (LNG) to diesel engine ,an electronic control common rail diesel engine was modified into a dual fuel engine fuelled with LNG‐diesel fuel by injecting LNG into intake manifold .Then the effects of fuel mixing ratio on dual fuel engine combustion characteristics were analyzed under the condition of 1 200 r/min with full load .The results show that the in‐cylinder pressure of dual fuel engine first increases and then decreases ,and the pressure rise rate ,the transient heat release rate and the cyclic variation coefficient of peak pressure increase with the increase of fuel mixing ratio . |
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| Keywords: | common rail diesel engine natural gas dual fuel fuel mixing ratio combustion characteristic |
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