Protection device for controlling the motion of a

专利名称：Protection device for controlling the motion

of a pneumatic actuator

发明人：Bohao Liao,Urban Dahlberg申请号：US097813申请日：20010426公开号：US005632B1公开日：20020618

专利附图：

摘要：A protection device for controlling the motion of a pneumatic actuator, havingat least one elongated cylinder provided with a piston, dividing the cylinder into a firstchamber and a second chamber, an actuating pressure supply line connectable to at least

one of the first and second chambers, a control unit for controlling the motion of thepiston relatively to the cylinder, and a motion sensor adapted to sense a piston featurerelated to the piston motion and co-operating with the control unit. According to theinvention, the control unit limits the motion of the piston as soon as signal from thesensor indicates that an excessive value of the piston motion has been established.

申请人：DELAVAL HOLDING AB

代理机构：Young & Thompson

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