脉宽调制式数字比例流量阀  

Pulse width modulating digital proportional flow valve

作　　者：胡大邦[1] 张涛[1] 徐贤波 

机构地区：[1]煤炭科学研究总院上海分院

出　　处：《工程机械》1992年第4期34-37,49,共4页Construction Machinery and Equipment

摘　　要：介绍美国ENERPAC公司最新生产的PULSAR VP系列脉冲宽度调制数字比例多路换向阀的结构特征,并对此阀的关键环节——开关液压桥进行了初步的机理分析。通过建立数学模型、仿真分析,阐明了开关液压桥无位移及有位移输出动态特性,为消化、吸收这种新型比例控制元件提供了理论依据。The design features of a new product byENERPAC company, U.S.A.…the PULSARVPseries digital proportional multi-way val-ves with pulse width modulation are introduced.The mechanism of its key component … thehydraulic switching bridge is primarily analy-zed. Through the establishment of mathemati-cal model and simulation, the dynamic chara-cteristics of this hydraulic bridge both withdisplacement and without displacement are de-scribed. The theoretical basis for masteringthis type of proportional control element isthus provided.

关 键 词：流量阀 换向阀 开关 脉宽调制 

分 类 号：TH137.522[机械工程—机械制造及自动化]