JPS5321402A - Automatic operating device of pump - Google Patents

Automatic operating device of pump

Info

Publication number
JPS5321402A
JPS5321402A JP9480776A JP9480776A JPS5321402A JP S5321402 A JPS5321402 A JP S5321402A JP 9480776 A JP9480776 A JP 9480776A JP 9480776 A JP9480776 A JP 9480776A JP S5321402 A JPS5321402 A JP S5321402A
Authority
JP
Japan
Prior art keywords
pump
operating device
automatic operating
case
automatic change
Prior art date
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.)
Pending
Application number
JP9480776A
Other languages
Japanese (ja)
Inventor
Haruo Kawai
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 Ltd filed Critical Hitachi Ltd
Priority to JP9480776A priority Critical patent/JPS5321402A/en
Publication of JPS5321402A publication Critical patent/JPS5321402A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To make automatic change to spare pump in case of service pump trouble by using electromagnetic contactor and selective switch jointly.
COPYRIGHT: (C)1978,JPO&Japio
JP9480776A 1976-08-11 1976-08-11 Automatic operating device of pump Pending JPS5321402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9480776A JPS5321402A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9480776A JPS5321402A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Publications (1)

Publication Number Publication Date
JPS5321402A true JPS5321402A (en) 1978-02-27

Family

ID=14120317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9480776A Pending JPS5321402A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Country Status (1)

Country Link
JP (1) JPS5321402A (en)

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