JPS5523321A - Safety system against pump run-out - Google Patents

Safety system against pump run-out

Info

Publication number
JPS5523321A
JPS5523321A JP9452678A JP9452678A JPS5523321A JP S5523321 A JPS5523321 A JP S5523321A JP 9452678 A JP9452678 A JP 9452678A JP 9452678 A JP9452678 A JP 9452678A JP S5523321 A JPS5523321 A JP S5523321A
Authority
JP
Japan
Prior art keywords
pump
outlet
pressure
outlet valve
run
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
JP9452678A
Other languages
Japanese (ja)
Inventor
Takeshi Izawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9452678A priority Critical patent/JPS5523321A/en
Publication of JPS5523321A publication Critical patent/JPS5523321A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To provide a safety system against pump run-out, which comprises an outlet valve disposed at a portion of outlet piping of pump, said outlet valve being arranged such that it is opened and closed depending on the pressure of fluid at the outlet of pump, whereby pump can be protected from run-out positively and with high responsibility under any circumstances.
CONSTITUTION: At a portion of outlet piping 2 of pump 1, there is provided an outlet valve 3 which is opened and closed depending on the pressure at the outlet of pump 1. In case, for instance, that pressure in the outlet piping 2 is high, movable piston 43 is shifted upward and driving fluid is fed to the lower portion of driving piston 22, whereby outlet valve 3 is opened. On the other hand, in case that pressure in the outlet piping 2 is low, piston 43 is shifted downward and fluid is discharged from the lower portion of driving piston 22, whereby outlet valve 3 is closed. Thus, because of the arrangement that opening and closing of the outlet valve 3 is controlled by pressure at the outlet of pump, it is free from electric troubles and pump can be protected from run-out positively and with high responsibility under any circumstances.
COPYRIGHT: (C)1980,JPO&Japio
JP9452678A 1978-08-04 1978-08-04 Safety system against pump run-out Pending JPS5523321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9452678A JPS5523321A (en) 1978-08-04 1978-08-04 Safety system against pump run-out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9452678A JPS5523321A (en) 1978-08-04 1978-08-04 Safety system against pump run-out

Publications (1)

Publication Number Publication Date
JPS5523321A true JPS5523321A (en) 1980-02-19

Family

ID=14112766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9452678A Pending JPS5523321A (en) 1978-08-04 1978-08-04 Safety system against pump run-out

Country Status (1)

Country Link
JP (1) JPS5523321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152101A (en) * 1982-02-27 1983-09-09 ゾルタン・ツイルメイ Spherical surface piston apparatus for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152101A (en) * 1982-02-27 1983-09-09 ゾルタン・ツイルメイ Spherical surface piston apparatus for motor

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