JPS57212388A - Apparatus for feeding water under pressure - Google Patents

Apparatus for feeding water under pressure

Info

Publication number
JPS57212388A
JPS57212388A JP9710581A JP9710581A JPS57212388A JP S57212388 A JPS57212388 A JP S57212388A JP 9710581 A JP9710581 A JP 9710581A JP 9710581 A JP9710581 A JP 9710581A JP S57212388 A JPS57212388 A JP S57212388A
Authority
JP
Japan
Prior art keywords
discharge passage
pump
discharge
motor
speed
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
JP9710581A
Other languages
Japanese (ja)
Inventor
Yutaka Takahashi
Masaru Saijo
Ryoichi Koga
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9710581A priority Critical patent/JPS57212388A/en
Publication of JPS57212388A publication Critical patent/JPS57212388A/en
Pending 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
    • F04B49/20—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 by changing the driving speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To obtain an optimal operation of a motor suited to fluid load in a discharge passage, by using a vaiable-speed motor, dividing the pump discharge circuit into a plurality of passages, and controlling the speed of a pump-motor by an output signal of a fluid sensor disposed in each of the discharge passages. CONSTITUTION:For instance, a displacement type pump is used as a pump 1 which has a suction passage 2 and a discharge passage 3. The discharge passage 3 is branched into a first discharge passage 4 and a second discharge passage 5, and a water-flow detecting means 6 is provided in the second discharge passage 5. With such an arrangement, the revolving speed of a variable-speed motor of the pump 1 is controlled according to the load in the discharge passage 5 detected by the water-flow detecting means 6.
JP9710581A 1981-06-22 1981-06-22 Apparatus for feeding water under pressure Pending JPS57212388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9710581A JPS57212388A (en) 1981-06-22 1981-06-22 Apparatus for feeding water under pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9710581A JPS57212388A (en) 1981-06-22 1981-06-22 Apparatus for feeding water under pressure

Publications (1)

Publication Number Publication Date
JPS57212388A true JPS57212388A (en) 1982-12-27

Family

ID=14183320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9710581A Pending JPS57212388A (en) 1981-06-22 1981-06-22 Apparatus for feeding water under pressure

Country Status (1)

Country Link
JP (1) JPS57212388A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869427A (en) * 1987-07-07 1989-09-26 Inax Corporation Shower system
JP2006242115A (en) * 2005-03-04 2006-09-14 Matsushita Electric Ind Co Ltd Pump and liquid supply device equipped with the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4965102A (en) * 1972-10-24 1974-06-24
JPS5111244A (en) * 1974-07-17 1976-01-29 Mitsubishi Electric Corp MAIKURO HAKANETSUSOCHI
JPS5523502A (en) * 1978-07-05 1980-02-20 Yokogawa Hokushin Electric Corp Terminal pressure control system in wide-range pipe water supply equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4965102A (en) * 1972-10-24 1974-06-24
JPS5111244A (en) * 1974-07-17 1976-01-29 Mitsubishi Electric Corp MAIKURO HAKANETSUSOCHI
JPS5523502A (en) * 1978-07-05 1980-02-20 Yokogawa Hokushin Electric Corp Terminal pressure control system in wide-range pipe water supply equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869427A (en) * 1987-07-07 1989-09-26 Inax Corporation Shower system
JP2006242115A (en) * 2005-03-04 2006-09-14 Matsushita Electric Ind Co Ltd Pump and liquid supply device equipped with the same
JP4569324B2 (en) * 2005-03-04 2010-10-27 パナソニック電工株式会社 Pump and liquid supply apparatus having the same

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