Experimental Investigation of the Effect of Mixed Additives on Homogeneous Charge Compression Ignition Combustion  

作　　者：李超 纪常伟 何超 李韫喆 何洪 沈自友 

机构地区：[1]Department of Automotive Engineering,Beijing University of Technology [2]Department of Applied Chemistry,Beijing University of Technology

出　　处：《Defence Technology（防务技术）》2008年第2期85-90,共6页Defence Technology

基　　金：National Natural Science Foundation of China (50522202);National Key Basic Research Programof China (2001CB209201)

摘　　要：The experimental investigation of homogeneous charge compression ignition (HCCI) process is carried out on a 4-cylinder diesel engine. One of the cylinders is modified for HCCI combustion with mixed additives. The influence of mixed additives on the HCCI combustion process is investigated. The experimental results indicate that the mixed additives are better than the single additives for HCCI fuel, causing ignition and heat release to be advanced and the peak of heat release rate to increase under the condition of different engine speeds and steady HCCI combustion. Moreover, with the increase in engine speed, the influence of mixed additives on HCCI combustion is more obvious. In addition, the mixed additives are beneficial to improve HCCI engine misfire at a high engine speed and make the engine operate stable.The experimental investigation of homogeneous charge compression ignition （HCCI） process is carried out on a 4-cylinder diesel engine. One of the cylinders is modified for HCCI combustion with mixed additives. The influence of mixed additives on the HCCI combustion process is investigated. The experimental results indicate that the mixed additives are better than the single additives for HCCI fuel, causing ignition and heat release to be advanced and the peak of heat release rate to increase under the condition of different engine speeds and steady HCCI combustion. Moreover, with the increase in engine speed, the influence of mixed additives on HCCI combustion is more obvious. In addition, the mixed additives are beneficial to improve HCCI engine misfire at a high engine speed and make the engine operate stable.

关 键 词：大功率机械 均质充量压缩燃烧 混合添加剂 燃烧方式 油缸压力 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]