中国机械工程2012，Vol.23Issue(16)：1951-1956,6.DOI:10.3969/j.issn.1004-132X.2012.16.014
两级电液伺服阀双喷嘴挡板阀内流场计算与分析
Calculation and Analysis of Internal Flow Field of a Double Nozzle Flapper Valve of Two—stage Electro—hydraulic Servo Valve
陆向辉 1高殿荣2
作者信息
- 1. 燕山大学,秦皇岛,066004
- 2. 河北建材职业技术学院,秦皇岛,066004
- 折叠
摘要
Abstract
The double nozzle flapper valve is the pre- stage of a two -stage electro -hydraulic servo valve, its structural parameters have an important influence on the performance of electro -hydraulic servo valves. This paper used the flow field computation software to compute the flow field of the nozzle's different structural parameter combinations, and also analyze the liquid flow property, as velocity characteristics, pressure characteristics, flow characteristics, etc. The results show that the flow rates increase as the the diameter, the end grinding and the external angle of the nozzle increase. But the differential pressure of the nozzle flapper valve decrease. And there is nearly no influence while changing the length of the nozzle, the inner angle of the nozzle and the cavity inner diameter of the nozzle. Through the comparisons and analyses the optimal combination of the structural parameters are found out, which can give the references and provide a basis for the design of the nozzle of double nozzle flapper electro -hydraulic servo valves.关键词
双喷嘴/挡板/电液伺服阀/流场Key words
double nozzle/ flapper/ electro - hydraulic servo valve/flow field分类
机械制造引用本文复制引用
陆向辉,高殿荣..两级电液伺服阀双喷嘴挡板阀内流场计算与分析[J].中国机械工程,2012,23(16):1951-1956,6.
