一种新型涡流室式柴油机燃烧系统的研究  

A Study on Combustion System for Swirl Chamber Diesel Engine

作　　者：胡军军[1] 阎小俊[1] 周龙保[1] 潘克煜[1] 

机构地区：[1]西安交通大学

出　　处：《燃烧科学与技术》1998年第1期37-41,共5页Journal of Combustion Science and Technology

基　　金：国家教委博士点基金

摘　　要：本文在对影响涡流室式柴油机燃油消耗率的３个主要因素进行分析的基础上，提出了一种新型涡流室镶块连接通道形状，并在一台单缸柴油机上分别进行连接通道和主燃烧室形状的改进设计。实验结果表明，改进后的镶块连接通道能有效的增加流通系数（尤其是在高速高负荷时），减少节流损失，降低燃油消耗率，而非对称式双涡流主燃烧室能加快主燃烧室的扩散燃烧，改进后的涡流室式柴油机在标定工况下与原机的燃油消耗率相比下降了２．０％左右。In this paper,three factors affecting the fuel economy of swirl chamber diesel engine are analyzed and a new shape of connecting passage of swirl chamber is put forward based on the above analysis.The modification designs of connecting passage and main chamber are carried out on a single cylinder swirl chamber diesel engine. Experimental results show that the flow coefficient of the new connecting passage is increased,the throttling loss is decreased and fuel economy is improved.The diffusion combustion in an asymmetric double swirl main chamber designed is accelerated,The BSFC of the modified swirl chamber diesel engine is reduced by 2.0% in comparison with the original one under nominal operating conditions.

关 键 词：涡流室 柴油机 连接通道 燃油经济 燃烧室 

分 类 号：TK421.7[动力工程及工程热物理—动力机械及工程] TK423.2