单活塞式液压自由活塞柴油机启动过程研究  

Analysis for Starting Procedure of Single Piston Hydraulic Free-piston Diesel Engine

作　　者：苑士华[1] 吴维[1] 荆崇波[1] 郭凯[1] 赵振峰[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《兵工学报》2010年第8期1009-1013,共5页Acta Armamentarii

基　　金："十一五"国家部委基础科研项目(A2220060053)

摘　　要：研究单活塞式液压自由活塞柴油机(HFPDE)的启动工况,得到其启动流程。基于系统启动能量传递过程,理论分析了各组分能量的定量分配关系,研究了回复蓄能器、频率控制阀以及压缩腔参数的匹配方法并进行了相应的试验验证。结果表明系统启动压缩行程较稳定工况长且单次循环启动成功率较高。系统启动输入能量主要来自回复蓄能器且主要被高压腔高压油和动力腔气体吸收,启动压缩过程压缩比可以灵活调整,提出的系统启动装置参数匹配方法和启动流程可行。In order to establish the starting procedure,the starting mode of a single piston hydraulic freepiston diesel engine （HFPDE） was studied.Based on the energy conversion process,the energy quantitative allocation proportion was analyzed theoretically.The parameter matching method of the compression accumulator,the frequency valve and the compression cavity was investigated and validated with experiments.The results indicate that the compression stroke in the starting mode is longer than in the steady operating state and the starting success rate is higher.The input starting energy is mainly offered by the compression accumulator and absorbed mostly by the high pressure cavity oil and the cylinder gas.The compression ratio in the starting mode can be adjusted freely.The proposed parameter matching method and the starting procedure are feasible.

关 键 词：动力机械工程 自由活塞发动机 液压传动 柴油机 能量转换 

分 类 号：TH137[机械工程—机械制造及自动化]