JPS54127012A - Automatic pump - Google Patents

Automatic pump

Info

Publication number
JPS54127012A
JPS54127012A JP3310878A JP3310878A JPS54127012A JP S54127012 A JPS54127012 A JP S54127012A JP 3310878 A JP3310878 A JP 3310878A JP 3310878 A JP3310878 A JP 3310878A JP S54127012 A JPS54127012 A JP S54127012A
Authority
JP
Japan
Prior art keywords
casing
self
suction
pressure tank
upper opening
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
JP3310878A
Other languages
Japanese (ja)
Inventor
Shunichi Nishimura
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 JP3310878A priority Critical patent/JPS54127012A/en
Publication of JPS54127012A publication Critical patent/JPS54127012A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To make possible stable automatic operation of a pump for a small-sized pressure tank by such a construction that the lower opening of the priming line in the pressure tank at the upper part of the pump is situated below the upper opening of the drainage line.
CONSTITUTION: At the time of self-suction operation, prime water poured from the prime water intake 14 fills the inside of the casing 5 etc. situated below the upper opening of the drainage line 18. When self-suction operation is started, the air in the suction tube 9 is taken into the casing 5 and transported to the discharge side 11 in the form of bubbles, and then accumulated afloat in the pressure tank 3, giving an effect of increasing the effective utilization capacity at the time of automatic operation. The water which has taken off the air, descends again into the casing 5 to repeat self-suction action. Then, when pumping operation is commenced it rises up through the priming line 16 from the gap 23 and further supplied through the upper opening 19, the drainage line 18 and the discharge opening 17. An air quantity which makes possible stable automatic operation due to the position of the openings 19, 21 can be accumulated in the tank 3.
COPYRIGHT: (C)1979,JPO&Japio
JP3310878A 1978-03-24 1978-03-24 Automatic pump Pending JPS54127012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3310878A JPS54127012A (en) 1978-03-24 1978-03-24 Automatic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3310878A JPS54127012A (en) 1978-03-24 1978-03-24 Automatic pump

Publications (1)

Publication Number Publication Date
JPS54127012A true JPS54127012A (en) 1979-10-02

Family

ID=12377458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3310878A Pending JPS54127012A (en) 1978-03-24 1978-03-24 Automatic pump

Country Status (1)

Country Link
JP (1) JPS54127012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534323A (en) * 1982-12-23 1985-08-13 Nissan Motor Co., Ltd. Valve operation changing system of internal combustion engine
US4584974A (en) * 1982-07-27 1986-04-29 Nissan Motor Co., Ltd. Valve operation changing system of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584974A (en) * 1982-07-27 1986-04-29 Nissan Motor Co., Ltd. Valve operation changing system of internal combustion engine
US4534323A (en) * 1982-12-23 1985-08-13 Nissan Motor Co., Ltd. Valve operation changing system of internal combustion engine

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