JPS57127177A - Flow controlling device - Google Patents

Flow controlling device

Info

Publication number
JPS57127177A
JPS57127177A JP1238581A JP1238581A JPS57127177A JP S57127177 A JPS57127177 A JP S57127177A JP 1238581 A JP1238581 A JP 1238581A JP 1238581 A JP1238581 A JP 1238581A JP S57127177 A JPS57127177 A JP S57127177A
Authority
JP
Japan
Prior art keywords
signal
flow rate
deviation
driving
coil
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
JP1238581A
Other languages
Japanese (ja)
Inventor
Eiichi Morozumi
Tadashi Kojima
Kentaro Inoue
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 JP1238581A priority Critical patent/JPS57127177A/en
Publication of JPS57127177A publication Critical patent/JPS57127177A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

Abstract

PURPOSE:To control actual flow rate toward the set value of flow rate by a method wherein a controlling valve is connected with a flow sensor and controlled so as to minimize the deviation between the flow rate detected by the outputted signal from the flow sensor and the set value of flow rate. CONSTITUTION:When the valtage of setting signal SP is set to the value corresponding to desired flow rate, a comparator 27 supplys a deviation signal derived from the difference between the voltage signal of an integrator 26 and the setting signal SP to a driving circuit 28. The driving circuit 28 supplies the driving signal inverse to the amount of said deviation signal to a coil 12. Owing to the driving signal supplied to the coil 12, an electromagnetic pump 11 sends pressureized oil to a pressure chamber 16, resulting in pushing down a valve body 8 in order to open a port 7 so as to obtain the flow rate in response to the driving signal. In such a manner as mentioned above, the gas G is supplied through an input passage 5 and an output passage 6 to the site not shown here and at the same time gives magnetic flux change to a Hall element 23 which enables an input circuit 25 to output pulse signal.
JP1238581A 1981-01-30 1981-01-30 Flow controlling device Pending JPS57127177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1238581A JPS57127177A (en) 1981-01-30 1981-01-30 Flow controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1238581A JPS57127177A (en) 1981-01-30 1981-01-30 Flow controlling device

Publications (1)

Publication Number Publication Date
JPS57127177A true JPS57127177A (en) 1982-08-07

Family

ID=11803792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1238581A Pending JPS57127177A (en) 1981-01-30 1981-01-30 Flow controlling device

Country Status (1)

Country Link
JP (1) JPS57127177A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4966307A (en) * 1988-04-14 1990-10-30 Gaz De France Integrated multifunction regulator station for gas supply to a secondary mains
US5129619A (en) * 1990-03-26 1992-07-14 Retro-Tech Corporation Sealed magnetically operated flow control valve assembly
US5129620A (en) * 1990-03-26 1992-07-14 Retro-Tech Corporation Sealed magnetically operated flow control valve assembly
US5927400A (en) * 1995-06-06 1999-07-27 Eltek S.P.A. Device and method for the adjustment of the flow rate of a liquid, with closed loop control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4966307A (en) * 1988-04-14 1990-10-30 Gaz De France Integrated multifunction regulator station for gas supply to a secondary mains
US5129619A (en) * 1990-03-26 1992-07-14 Retro-Tech Corporation Sealed magnetically operated flow control valve assembly
US5129620A (en) * 1990-03-26 1992-07-14 Retro-Tech Corporation Sealed magnetically operated flow control valve assembly
US5927400A (en) * 1995-06-06 1999-07-27 Eltek S.P.A. Device and method for the adjustment of the flow rate of a liquid, with closed loop control

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