RESEARCH ON THE PERFORMANCE OF NEW TYPE OF PROPORTIONAL PESSURE AND FLOW CONTROL VALVE  

作　　者：Quan LongMa JianWang YongjinInstitute of Mechatronics,Taiyuan University of Technology,Taiyuan 030024, China 

出　　处：《Chinese Journal of Mechanical Engineering》2003年第3期281-284,共4页中国机械工程学报（英文版）

基　　金：This project is supported by National Natural Science Foundation of China (No.50275102);Provincial Foundation for Abroad Return People of Shanxi (No.101045).

摘　　要：A new closed loop flow controlling principle through correcting the valve'sopening area while load pressure is changing is carried out. Further more a principle using only oneproportional valve to compound control pressure and flow is suggested. By using very simpleproportional throttle valve in structure, the functions that five kinds of proportional valves orany two of them combined possess can be complimented. After analyzing, comparing, and testing thedynamic and static characteristics of valve with different controlling principles and main valvestructure styles, the optimized structure styles and control methods are achieved.A new closed loop flow controlling principle through correcting the valve'sopening area while load pressure is changing is carried out. Further more a principle using only oneproportional valve to compound control pressure and flow is suggested. By using very simpleproportional throttle valve in structure, the functions that five kinds of proportional valves orany two of them combined possess can be complimented. After analyzing, comparing, and testing thedynamic and static characteristics of valve with different controlling principles and main valvestructure styles, the optimized structure styles and control methods are achieved.

关 键 词：Electro-hydraulic proportional control Proportional flow valve Proportionalpressure valve Pressure and flow compound control 

分 类 号：TH137.52[机械工程—机械制造及自动化]