JPS6440768A - Check valve - Google Patents
Check valveInfo
- Publication number
- JPS6440768A JPS6440768A JP19429987A JP19429987A JPS6440768A JP S6440768 A JPS6440768 A JP S6440768A JP 19429987 A JP19429987 A JP 19429987A JP 19429987 A JP19429987 A JP 19429987A JP S6440768 A JPS6440768 A JP S6440768A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve element
- differential pressure
- hole
- valve seat
- 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
Landscapes
- Check Valves (AREA)
Abstract
PURPOSE:To enhance the responsiveness of a check valve by providing a magnetically urging means for urging a valve element movably disposed in a valve chamber and made of magnetic materials in a direction in which it closes a through-hole in a valve seat. CONSTITUTION:A valve seat 7 formed therein with a through-hole 16 is provided in a large diameter section 15 on the upstream side of the latter, and a valve element 22 made of magnetic materials is disposed in a valve chamber 21 between a partition wall and the valve element 17. A magnetic coil 23 as a magnetically urging means is wound on the outer peripheral surface of the large diameter section 15 of the valve body 11. When a differential pressure larger than a magnetic force by which the coil 23 attracts the valve element 22 is effected between the upstream and downstream sides of the valve seat 17 in a valve closing condition, the valve element 22 is lifted from the valve seat 17. Accordingly, even though the differential pressure does not vary greatly, the valve element 22 can fully open the through-hole 16, thereby it is possible to enhance the responsiveness of the check valve for the differential pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19429987A JPS6440768A (en) | 1987-08-05 | 1987-08-05 | Check valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19429987A JPS6440768A (en) | 1987-08-05 | 1987-08-05 | Check valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6440768A true JPS6440768A (en) | 1989-02-13 |
Family
ID=16322291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19429987A Pending JPS6440768A (en) | 1987-08-05 | 1987-08-05 | Check valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440768A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5903054A (en) * | 1993-12-23 | 1999-05-11 | Stmicroelectronics, Inc. | Integrated circuit with improved pre-metal planarization |
JP2004293585A (en) * | 2003-03-25 | 2004-10-21 | Shangyin Sci & Technol Co Ltd | Rolling transmission element circulating equipment with lubricating system |
JP2007247712A (en) * | 2006-03-14 | 2007-09-27 | Japan Air Gases Ltd | Check valve and fluid supply device using same |
-
1987
- 1987-08-05 JP JP19429987A patent/JPS6440768A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5903054A (en) * | 1993-12-23 | 1999-05-11 | Stmicroelectronics, Inc. | Integrated circuit with improved pre-metal planarization |
JP2004293585A (en) * | 2003-03-25 | 2004-10-21 | Shangyin Sci & Technol Co Ltd | Rolling transmission element circulating equipment with lubricating system |
JP2007247712A (en) * | 2006-03-14 | 2007-09-27 | Japan Air Gases Ltd | Check valve and fluid supply device using same |
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