JPS5347001A - Operation detector for pump - Google Patents

Operation detector for pump

Info

Publication number
JPS5347001A
JPS5347001A JP12189976A JP12189976A JPS5347001A JP S5347001 A JPS5347001 A JP S5347001A JP 12189976 A JP12189976 A JP 12189976A JP 12189976 A JP12189976 A JP 12189976A JP S5347001 A JPS5347001 A JP S5347001A
Authority
JP
Japan
Prior art keywords
operation detector
pump
cost
problems associated
low
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
JP12189976A
Other languages
Japanese (ja)
Inventor
Masaharu Takahashi
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 JP12189976A priority Critical patent/JPS5347001A/en
Publication of JPS5347001A publication Critical patent/JPS5347001A/en
Pending legal-status Critical Current

Links

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  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: A low-cost, reliable operation detector which can avoid problems associated with the pressure resistance and detecting accuracy of a pressure differential switch and the like, and can be used jointly with a conventional pump inlet flow transmitter.
COPYRIGHT: (C)1978,JPO&Japio
JP12189976A 1976-10-13 1976-10-13 Operation detector for pump Pending JPS5347001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12189976A JPS5347001A (en) 1976-10-13 1976-10-13 Operation detector for pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12189976A JPS5347001A (en) 1976-10-13 1976-10-13 Operation detector for pump

Publications (1)

Publication Number Publication Date
JPS5347001A true JPS5347001A (en) 1978-04-27

Family

ID=14822653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12189976A Pending JPS5347001A (en) 1976-10-13 1976-10-13 Operation detector for pump

Country Status (1)

Country Link
JP (1) JPS5347001A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS448208Y1 (en) * 1965-01-01 1969-03-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS448208Y1 (en) * 1965-01-01 1969-03-29

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