高压共轨喷油器蓄压腔进油通道设计  

Design of the Inlet Channel of Accumulator Chamber in High Pressure Common Rail Injector

作　　者：王国莹[1] 袁永先[1] 吴小军[1] 王家雄[1] 任贵峰[1] 

机构地区：[1]中国北方发动机研究所,天津300400

出　　处：《柴油机设计与制造》2013年第4期1-6,共6页Design and Manufacture of Diesel Engine

摘　　要：为了满足大功率柴油机的需求,进一步控制系统内的压力波动,减小共轨喷油器内压力波动对系统轨道压力的影响,对一种高压共轨喷油器蓄压腔进油通道进行了优化设计。利用三维流体分析软件FLUENT对喷油器蓄压腔进油通道进行了仿真分析,通过对不同凸边长度的进油通道及不同节流孔的进油通道流场计算,发现蓄压腔进油通道加凸边的设计结构,当凸边结构小于3 mm时,可以实现不影响喷油量的同时,降低共轨系统内的压力波动。For satisfying the need of large power diesel engine and decreasing the pressure fluctuation of the common rail system, the inlet channel of accumulator chamber in high common rail injector is designed. Through study and analysis of the 3D flow field of the inlet channel of the injector, an inlet channel structure with 3 mm convex edge is proposed to decrease the back flow in the inlet charmel and reduce system pressure fluctuation in the condition of no effect on fuel injection quantity.

关 键 词：高压共轨 喷油器 蓄压腔 进油通道 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]