Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP12489876ApriorityCriticalpatent/JPS5351309A/en
Publication of JPS5351309ApublicationCriticalpatent/JPS5351309A/en
PURPOSE: Counterpoise of a force of opening and closing control valves makes it possible to open and close the control valves in use of a small servo motor.
COPYRIGHT: (C)1978,JPO&Japio
JP12489876A1976-10-201976-10-20Steam control valve opening process
PendingJPS5351309A
(en)