JPS5572971A - Flow rate proportional control valve unit - Google Patents
Flow rate proportional control valve unitInfo
- Publication number
- JPS5572971A JPS5572971A JP14681378A JP14681378A JPS5572971A JP S5572971 A JPS5572971 A JP S5572971A JP 14681378 A JP14681378 A JP 14681378A JP 14681378 A JP14681378 A JP 14681378A JP S5572971 A JPS5572971 A JP S5572971A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- flow rate
- coil
- chamber
- electromagnetic
- 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
Links
Abstract
PURPOSE: To prevent the plunger of a flow rate proportional control valve unit from sticking or attracting thereto by communicating a valve chamber for containing the valve portion of the plunger wound with an electromagnetic coil with an electromagnetic chamber for containing the electromagnetic coil to thereby balance between the hydraulic pressures of both the chambers.
CONSTITUTION: A magnetic circuit is formed through a plunger 14 and a body 11 by magnetic flux generated from a permanent magnet 17 normally, and partially passed through an electromanetic coil 16. When a current is applied to the coil 16 at this time, a magnetomotive force proportional to the applied current is generated thereat. Accordingly, the plunger 14 is moved rightwardly against srings 19, 20. Thus, the valve portion 14a opens a fluid passage 18 to thus control the openig area so as to thereby control the fluid flow rate communicating between the ports 12 and 13. Since the valve chamber 24 communicates through the passage 26 with the electromagnetic chamber 25 at this time, the hydraulic pressures between the chambers 25 and 26 are balanced to eliminate the pressure difference therebetween to thus perform the above purpose.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14681378A JPS5572971A (en) | 1978-11-27 | 1978-11-27 | Flow rate proportional control valve unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14681378A JPS5572971A (en) | 1978-11-27 | 1978-11-27 | Flow rate proportional control valve unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572971A true JPS5572971A (en) | 1980-06-02 |
Family
ID=15416101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14681378A Pending JPS5572971A (en) | 1978-11-27 | 1978-11-27 | Flow rate proportional control valve unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572971A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112775U (en) * | 1982-01-28 | 1983-08-02 | 宇部興産株式会社 | spool valve |
JPS63184274U (en) * | 1987-05-20 | 1988-11-28 | ||
JPH03282084A (en) * | 1990-03-28 | 1991-12-12 | Rinnai Corp | Flow rate control device |
EP0708250A3 (en) * | 1994-10-20 | 1998-05-20 | Smiths Industries Public Limited Company | Hydraulic systems |
CN102720712A (en) * | 2012-05-31 | 2012-10-10 | 绍兴文理学院 | Electrohydraulic proportioning valve capable of correcting chucking faults by utilizing electromagnetic force |
-
1978
- 1978-11-27 JP JP14681378A patent/JPS5572971A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112775U (en) * | 1982-01-28 | 1983-08-02 | 宇部興産株式会社 | spool valve |
JPS63184274U (en) * | 1987-05-20 | 1988-11-28 | ||
JPH03282084A (en) * | 1990-03-28 | 1991-12-12 | Rinnai Corp | Flow rate control device |
EP0708250A3 (en) * | 1994-10-20 | 1998-05-20 | Smiths Industries Public Limited Company | Hydraulic systems |
CN102720712A (en) * | 2012-05-31 | 2012-10-10 | 绍兴文理学院 | Electrohydraulic proportioning valve capable of correcting chucking faults by utilizing electromagnetic force |
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