提高柴油机高压共轨系统高压泵泵油能力的研究  

Investigation on the Rating of Pumping Ability of Common-Rail Fuel Injection System for Diesel Engines

作　　者：董尧清[1] 顾萌君[1] 纪丽伟[1] 邹龙[1] 

机构地区：[1]同济大学汽车学院,上海201804

出　　处：《内燃机工程》2006年第5期11-15,共5页Chinese Internal Combustion Engine Engineering

摘　　要：以成熟的柴油机高压共轨系统ECD-U2为模型,利用Hydsim软件进行模拟计算,分析并预测了共轨系统高压泵中柱塞直径、泵腔余隙容积、柱塞最大升程以及凸轮型线等主要结构参数对泵油能力及泄漏量的影响,为进一步提高共轨系统供油压力提出可行的方案。This paper based on the model of ECD-U2, a successful common-rail fuel injection system. A set of hydraulic calculations simulating by using the software Hydsim were done. The effects of the plunger diameter, the clearance volume of plunger cavity, the maximum lift of plunger as well as the cam profile etc of the pump in CR system on the rate of pumping and leakage were analyzed and predicated. The useful manners, which could increase pumping ability, were raised.

关 键 词：内燃机 柴油机 高压共轨喷射系统 高压泵 泄漏 泵油能力 

分 类 号：TK421.4[动力工程及工程热物理—动力机械及工程]