| DME部分预混压燃与缸内直喷复合燃烧的研究 |
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| 引用本文： | 李维,周龙宝,汪映,马骏.DME部分预混压燃与缸内直喷复合燃烧的研究[J].重庆交通大学学报(自然科学版),2010,29(3):480-483. |
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| 作者姓名： | 李维 周龙宝 汪映 马骏 |
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| 作者单位： | 西京学院汽车学院,陕西,西安,710123;西安交通大学能动学院,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 在单缸二甲醚发动机上开展了DME部分预混压燃与缸内直喷混合燃烧(PCCI-DI)特性的研究。结果表明:DME PCCI-DI发动机具有较低的最高爆发压力和压力升高率。PCCI-DI DME发动机燃烧过程也表现出明显的两阶段放热特点,和HCCI DME发动机相比,两个放热峰值有所下降,第1个放热峰值位置基本不变,第2个放热峰值后移到上止点略后位置。
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| 关 键 词： | PCCI 直喷 二甲醚 燃烧特性 |
Study on Combustion Characteristics of Partial Premixed Charge Compression Ignition-Direct Injection Engine Fueled with Dimethyl Ether |
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| LI Wei,ZHOU Long-bao,WANG Ying,MA Jun.Study on Combustion Characteristics of Partial Premixed Charge Compression Ignition-Direct Injection Engine Fueled with Dimethyl Ether[J].Journal of Chongqing Jiaotong University,2010,29(3):480-483. |
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| Authors: | LI Wei ZHOU Long-bao WANG Ying MA Jun |
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| Abstract: | Experimental investigation on the combustion characteristics of PCCI-DI combustion by the partial pilot DME from the intake pipe is carried out.Results indicate that the engine has lower peak cylinder pressure and lesser rise rate of pressure.PCCI-DI DME engine also shows an obvious two-stage heat-release characteristic.Compared with HCCI DME engine,the peak values of two heat-release stages are reduced: the position of the first peak has almost no change and the position of the second peak shifts to the position near after TDC. |
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| Keywords: | PCCI |
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