Simulation and experimental study of electro-pneumatic valve used in air-powered engine

作     者：Ping-lu CHEN Xiao-li YU Lin LIU 

作者机构：College of Mechanical and Energy Engineering Zhejiang University Hangzhou 310027 China College of Engineering Jiangxi Agricultural University Nanchang 330045 China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2009年第10卷第3期

页      面：377-383页

核心收录：

学科分类：080701[工学-工程热物理] 08[工学] 080203[工学-机械设计及理论] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

主　　题：Pneumatic Variable valve actuation (VVA) Air-powered engine (APE) Simulation 

摘      要：To evaluate the performance of newly designed electro-pneumatic valves (EPVs) for the air-powered engine (APE) and study laws of parameters affecting them, a simulation model was established based on the thermodynamics and mechanics theories. Experiments were set up to determine the instantaneous effective orifice area of solenoid valve by the constant volume discharge method. The simulation model was also validated by comparing the measured displacement curve with the simulated displacement curve of the valve in the pressure of 0.16 and 0.49 MPa. Simulation and experimental results showed that maximum working frequency of the designed EPV could reach 30 Hz corresponding to 2000 r/min of engine rotating speed. Based on simulation results, impacts of temperature and pressure of control air on delay time, full opening/closing time and seating velocity of EPV were analyzed. The simulation model could also act as EPV simulation prototype in designing the air exchange control system of APE.