JPS578383A - Habitual and spare cooling pumps change-over apparatus - Google Patents

Habitual and spare cooling pumps change-over apparatus

Info

Publication number
JPS578383A
JPS578383A JP8349180A JP8349180A JPS578383A JP S578383 A JPS578383 A JP S578383A JP 8349180 A JP8349180 A JP 8349180A JP 8349180 A JP8349180 A JP 8349180A JP S578383 A JPS578383 A JP S578383A
Authority
JP
Japan
Prior art keywords
trouble
cooling pump
spare
determined
spare cooling
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
JP8349180A
Other languages
Japanese (ja)
Inventor
Ryukichi Hashizume
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8349180A priority Critical patent/JPS578383A/en
Publication of JPS578383A publication Critical patent/JPS578383A/en
Pending legal-status Critical Current

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  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To minimize system downs by providing each of a habitually used cooling pump and a spare cooling pump with a trouble detecting device so that a trouble may be detected at an early stage to change over between the habitually used cooling pump and the spare cooling pump.
CONSTITUTION: If a light trouble condition is determined at step S24 of a backup program 11, a heavy trouble is judged at step S25. If it is determined at step S25 that a heavy trouble has occurred at a habitually used cooling pump, the pump is stopped at step S41. A spare cooling pump is then run at a next step S42. And if no light trouble is determined at step S43 for a trouble detecting device, and then if no heavy trouble is determined at a next step S44, then the spare cooling pump is continuedly run at a subsequent step S45. Thus, a system down can be suppressed to a minimum level by detecting a trouble at an early stage to change over between the habitually used cooling pump and the spare cooling pump.
COPYRIGHT: (C)1982,JPO&Japio
JP8349180A 1980-06-18 1980-06-18 Habitual and spare cooling pumps change-over apparatus Pending JPS578383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8349180A JPS578383A (en) 1980-06-18 1980-06-18 Habitual and spare cooling pumps change-over apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8349180A JPS578383A (en) 1980-06-18 1980-06-18 Habitual and spare cooling pumps change-over apparatus

Publications (1)

Publication Number Publication Date
JPS578383A true JPS578383A (en) 1982-01-16

Family

ID=13803940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8349180A Pending JPS578383A (en) 1980-06-18 1980-06-18 Habitual and spare cooling pumps change-over apparatus

Country Status (1)

Country Link
JP (1) JPS578383A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03107589A (en) * 1989-09-20 1991-05-07 Hitachi Ltd Flor abnormality detection mechanism of liquid cooling electronic device
JPH03281999A (en) * 1990-03-30 1991-12-12 Hitachi Ltd Pump device
JP2014529985A (en) * 2011-08-17 2014-11-13 ルノー エス．ア．エス． Cooling system for electric vehicles
WO2021065266A1 (en) * 2019-10-01 2021-04-08 株式会社日立産機システム Fluid machine device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03107589A (en) * 1989-09-20 1991-05-07 Hitachi Ltd Flor abnormality detection mechanism of liquid cooling electronic device
JPH03281999A (en) * 1990-03-30 1991-12-12 Hitachi Ltd Pump device
JP2014529985A (en) * 2011-08-17 2014-11-13 ルノー エス．ア．エス． Cooling system for electric vehicles
WO2021065266A1 (en) * 2019-10-01 2021-04-08 株式会社日立産機システム Fluid machine device
JP2021055648A (en) * 2019-10-01 2021-04-08 株式会社日立産機システム Fluid machine device

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