JPS5321403A - Automatic operating device of pump - Google Patents

Automatic operating device of pump

Info

Publication number
JPS5321403A
JPS5321403A JP9481676A JP9481676A JPS5321403A JP S5321403 A JPS5321403 A JP S5321403A JP 9481676 A JP9481676 A JP 9481676A JP 9481676 A JP9481676 A JP 9481676A JP S5321403 A JPS5321403 A JP S5321403A
Authority
JP
Japan
Prior art keywords
pump
operating device
automatic operating
differential pressure
life
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
JP9481676A
Other languages
Japanese (ja)
Inventor
Shigetomo Yoshihara
Kozo Tamura
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 JP9481676A priority Critical patent/JPS5321403A/en
Publication of JPS5321403A publication Critical patent/JPS5321403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To extend the life of pump by providing differential pressure generator and switching device which is operated by the differential pressure generated by the device.
COPYRIGHT: (C)1978,JPO&Japio
JP9481676A 1976-08-11 1976-08-11 Automatic operating device of pump Pending JPS5321403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9481676A JPS5321403A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9481676A JPS5321403A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Publications (1)

Publication Number Publication Date
JPS5321403A true JPS5321403A (en) 1978-02-27

Family

ID=14120569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9481676A Pending JPS5321403A (en) 1976-08-11 1976-08-11 Automatic operating device of pump

Country Status (1)

Country Link
JP (1) JPS5321403A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5583276U (en) * 1978-11-30 1980-06-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5583276U (en) * 1978-11-30 1980-06-09

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