一种研究喷油嘴油束发展过程的新方法  

A New Method to Study the Development of Spray

作　　者：杜慧勇[1] 刘建新[1] 李民[1] 宗永平[1] 赵致和[1] 傅茂林[2] 

机构地区：[1]洛阳工学院汽车工程系,河南洛阳471003 [2]天津大学内燃机燃烧学国家重点实验室,天津300072

出　　处：《热科学与技术》2002年第1期71-75,共5页Journal of Thermal Science and Technology

基　　金："九五"国家重点攻关项目 (9612 0 3 0 80 1) ;河南省重大科技攻关项目 (0 0 1110 113 )

摘　　要：介绍了一种利用动量的观点来研究燃油的喷射过程的方法 ,即根据动量定理 ,利用传感器测量油束撞击传感器上的力的变化来得到油束的瞬时动量 ;通过对一次喷油过程中的动量求和 ,便可计算出冲击到传感器上油束的总动量。通过在喷油泵试验台上实测的油束的动量 ,验证了燃油在喷射的过程中存在着后喷出的油滴赶上并超过前面的油滴的现象 。A new method to study the process of fuel injection based on the momentum theorem is introduced in this paper. Spray instantaneous momentum is obtained by measuring the impact of pressure sensor; total momentum of spary can be also obtained by summing the instantaneous momentum of one spray process. It is also demonstrated that the later oil drops overtake and outstrip the former drops. The different between the aprays of hole\|type nozzle in ration is also analyzed.

关 键 词：动量 油速 柴油机 燃油喷雾 传感器 

分 类 号：TK423.84[动力工程及工程热物理—动力机械及工程]