组合喷射对双对置二冲程发动机燃烧过程影响的计算研究  

Influence of Combined Injection on OPOC Two-stroke Engine Combustion

作　　者：强永平[1] 李耀宗[1] 白洪林[1] 刘玮[1] 文明[1] 袁伟 贾晓亮 

机构地区：[1]中国北方发动机研究所(天津),天津300400 [2]总装装甲兵驻天津地区军代室,天津300400 [3]装甲兵驻616厂军事代表室,山西大同037036

出　　处：《车用发动机》2014年第5期46-53,共8页Vehicle Engine

摘　　要：针对双对置发动机采用双喷油器侧向喷油的特点,开展了不同组合喷油策略对缸内燃烧放热的模拟计算研究。首先建立了仿真计算模型,验证了模型参数选取的合理性,在此基础上分析了2个喷油器的循环油量分配比例、喷油始点、喷孔直径、喷油持续期等组合方案对燃烧放热规律以及发动机性能的影响,并以性能指标和降低压升率为目标得到了优化的组合方案。For the lateral injection characteristic of opposed-piston opposed-cylinder （OPOC） engine with dual injector, the in- fluence of different combined injection strategies on in-cylinder combustion heat release was researched. The calculation model was first built, the rationality of parameter selection was verified, the influences of injection proportion, injection timing, orifice diameter and injection duration on combustion heat release and engine performance for two injectors were analyzed, and finally the optimized combined scheme was acquired with good performance and low pressure rise rate.

关 键 词：双对置发动机 二冲程发动机 组合喷射 燃烧过程 仿真 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]