JPS57144378A - Control valve - Google Patents

Control valve

Info

Publication number
JPS57144378A
JPS57144378A JP2873481A JP2873481A JPS57144378A JP S57144378 A JPS57144378 A JP S57144378A JP 2873481 A JP2873481 A JP 2873481A JP 2873481 A JP2873481 A JP 2873481A JP S57144378 A JPS57144378 A JP S57144378A
Authority
JP
Japan
Prior art keywords
electromagnetic pump
pulse signal
held
predetermined position
pulse
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
JP2873481A
Other languages
Japanese (ja)
Inventor
Kentaro Inoue
Tadashi Kojima
Eiichi Morozumi
Hitoshi Tanaka
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP2873481A priority Critical patent/JPS57144378A/en
Publication of JPS57144378A publication Critical patent/JPS57144378A/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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE:To enable to hold a valve body at the predetermined position of opening or closing by a method wherein a first pulse generating circuit, generating the first pulse signal, and the second pulse generating circuit, generating the second pulse signal, are provided. CONSTITUTION:When a responding body 39 is arrived at the predetermined position thereof by the pressure of working fluid sent under pressure by the operation of an electromagnetic pump 33, it is detected by a lead switch 43 and the driving signal supplied to the electromagnetic pump 33 at that time is changed from the pulse signal A having a predetermined frequency into the pulse signal B, whereby, the plunger 55 of the electromagnetic pump 33 is stopped. However, a bypass valve 70 is held at the closing position thereof, therefore, the responding body 39 is also held at the position as it is located. In short, the electromagnetic pump 33 is driven only in a short period until the responding body 39 is moved to the predetermined position thereof and is never driven again as far as the responding body 39 is held at the position as it is located.
JP2873481A 1981-02-28 1981-02-28 Control valve Pending JPS57144378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2873481A JPS57144378A (en) 1981-02-28 1981-02-28 Control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2873481A JPS57144378A (en) 1981-02-28 1981-02-28 Control valve

Publications (1)

Publication Number Publication Date
JPS57144378A true JPS57144378A (en) 1982-09-06

Family

ID=12256655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2873481A Pending JPS57144378A (en) 1981-02-28 1981-02-28 Control valve

Country Status (1)

Country Link
JP (1) JPS57144378A (en)

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