喷油嘴针阀头形状变化对柴油机性能的影响  

The influence of needle tip changes on the diesel engine performance

作　　者：李民[1] 宗永平[1] 杜慧勇[1] 刘建新[1] 邓本都[1] 赵致和[1] 齐秀丽 

机构地区：[1]河南科技大学,471039 [2]河南柴油机厂,471003

出　　处：《拖拉机与农用运输车》2003年第5期13-15,共3页Tractor & Farm Transporter

基　　金：河南省重大科技攻关项目 ( 0 0 1110 113 )

摘　　要：本文研究了喷油嘴针阀头部形状变化对ZH110 5单缸直喷式柴油机性能的影响 ,研究表明针阀头部形状变化对柴油机低速大转矩工况的烟度与燃油消耗率影响明显。通过对油束动量和活塞燃烧室积炭情况的分析 ,揭示了针阀头部形状变化影响柴油机性能的原因。The influence of the needle tip shape change on ZH1105 diesel engine is studied in this paper. The experiment results show that the different shape of needle tip make a remarkable influence on the smoke emission and fuel consumption of engine at low engine speed and heavy load. Through the analysis of fuel spay instantaneous momentum and carbon laydown in combustion chamber, the reason that the shape of needle tip influence on engine performance has been illustrated.

关 键 词：喷油嘴 针阀头 柴油机 性能 中国 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]