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AU515952B2 - Automatic control for well pump - Google Patents
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AU515952B2 - Automatic control for well pump - Google Patents

Automatic control for well pump

Info

Publication number
AU515952B2
AU515952B2 AU21039/77A AU2103977A AU515952B2 AU 515952 B2 AU515952 B2 AU 515952B2 AU 21039/77 A AU21039/77 A AU 21039/77A AU 2103977 A AU2103977 A AU 2103977A AU 515952 B2 AU515952 B2 AU 515952B2
Authority
AU
Australia
Prior art keywords
automatic control
well pump
pump
well
automatic
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.)
Expired
Application number
AU21039/77A
Other versions
AU2103977A (en
Inventor
T Taki
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
Priority claimed from JP8080675A external-priority patent/JPS525004A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to AU21039/77A priority Critical patent/AU515952B2/en
Publication of AU2103977A publication Critical patent/AU2103977A/en
Application granted granted Critical
Publication of AU515952B2 publication Critical patent/AU515952B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
AU21039/77A 1975-07-02 1977-01-04 Automatic control for well pump Expired AU515952B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21039/77A AU515952B2 (en) 1975-07-02 1977-01-04 Automatic control for well pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8080675A JPS525004A (en) 1975-07-02 1975-07-02 Running control device for an automatic well-pump
AU21039/77A AU515952B2 (en) 1975-07-02 1977-01-04 Automatic control for well pump

Publications (2)

Publication Number Publication Date
AU2103977A AU2103977A (en) 1978-07-13
AU515952B2 true AU515952B2 (en) 1981-05-14

Family

ID=25618087

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21039/77A Expired AU515952B2 (en) 1975-07-02 1977-01-04 Automatic control for well pump

Country Status (1)

Country Link
AU (1) AU515952B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111456933B (en) * 2020-05-08 2022-03-08 河海大学常州校区 Method for detecting idle state of automobile electronic water pump

Also Published As

Publication number Publication date
AU2103977A (en) 1978-07-13

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