JPS5786604A - Flow-rate control valve - Google Patents

Flow-rate control valve

Info

Publication number
JPS5786604A
JPS5786604A JP16352180A JP16352180A JPS5786604A JP S5786604 A JPS5786604 A JP S5786604A JP 16352180 A JP16352180 A JP 16352180A JP 16352180 A JP16352180 A JP 16352180A JP S5786604 A JPS5786604 A JP S5786604A
Authority
JP
Japan
Prior art keywords
spool
flow
nozzle
rate control
control valve
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.)
Granted
Application number
JP16352180A
Other languages
Japanese (ja)
Other versions
JPS6118045B2 (en
Inventor
Kaoru Nishimura
Wataru Ogawa
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.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
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 Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP16352180A priority Critical patent/JPS5786604A/en
Publication of JPS5786604A publication Critical patent/JPS5786604A/en
Publication of JPS6118045B2 publication Critical patent/JPS6118045B2/ja
Granted legal-status Critical Current

Links

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  • Servomotors (AREA)

Abstract

PURPOSE: To obtain a flow rate control valve having a superior response with a small electric power by constitution the flow-rate control valve so that the applied current and voltage to an electric strain element are converted to a pilot hydraulic pressure by the pilot valve part and the flow-rate is controlled by a direct acting spool valve.
CONSTITUTION: The pressurized oil supplied into a valve body 1 from an inlet port 12 acts onto the large diameter edge surface of a variable spool 15 through the stepped area and a narrow hole 15'. If the nozzle of the nozzle part 2 is closed by a diaphragm 5 at this time, the spool 15 is moved leftward because of the area difference between the stepped area and the right edge surface and stopped at the position in balance to the compression force of a spring 18, and the metering orifice part 17 is closed completely by the spool 15. If an electric strain element 7 is brought into electric conduction in this state, and the diaphragms 5 and 6 are moved rightward by a minute amount, a portion of the pressurized oil flows out through the nozzle, described the above, and the spool 15 is moved rightward, and the pressurized oil which is metered in the orifice part 17 flows-out from an exit port 13.
COPYRIGHT: (C)1982,JPO&Japio
JP16352180A 1980-11-19 1980-11-19 Flow-rate control valve Granted JPS5786604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16352180A JPS5786604A (en) 1980-11-19 1980-11-19 Flow-rate control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16352180A JPS5786604A (en) 1980-11-19 1980-11-19 Flow-rate control valve

Publications (2)

Publication Number Publication Date
JPS5786604A true JPS5786604A (en) 1982-05-29
JPS6118045B2 JPS6118045B2 (en) 1986-05-10

Family

ID=15775442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16352180A Granted JPS5786604A (en) 1980-11-19 1980-11-19 Flow-rate control valve

Country Status (1)

Country Link
JP (1) JPS5786604A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191228U (en) * 1983-06-02 1984-12-19 エスエムシ−株式会社 Electric-pneumatic positioner
JPS6244102U (en) * 1985-09-06 1987-03-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191228U (en) * 1983-06-02 1984-12-19 エスエムシ−株式会社 Electric-pneumatic positioner
JPS6244102U (en) * 1985-09-06 1987-03-17

Also Published As

Publication number Publication date
JPS6118045B2 (en) 1986-05-10

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