JPS56156570A - Check valve combined with balance piston type relief valve - Google Patents
Check valve combined with balance piston type relief valveInfo
- Publication number
- JPS56156570A JPS56156570A JP5967780A JP5967780A JPS56156570A JP S56156570 A JPS56156570 A JP S56156570A JP 5967780 A JP5967780 A JP 5967780A JP 5967780 A JP5967780 A JP 5967780A JP S56156570 A JPS56156570 A JP S56156570A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- balance piston
- chamber
- valve
- piston type
- 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
- Safety Valves (AREA)
Abstract
PURPOSE: To enable connection to low pressure and high pressure passages with a balance piston valve housed in a valve body.
CONSTITUTION: When a pilot valve 14 opens with an increase in a pressure of a chamber 17, the flow of a fluid produces a differential pressure before and after an orifice 16. The chamber 17 is communicated to a charging port 11 and the pressure of chamber 17 drops to produce a differential pressure before and after the orifice 16. When the differential pressure exceeds a specified level, a spool 23 is displaced to have a main port 10 communicating to the charging port 11 through a relief hole 24 thereby preventing a rise in the pressure in a high pressure passage 4. When the main port 10 is in a low pressure passage, the spool 22 is displaced to the left to have the charging port 11 communicating to the main port 10. A balance piston valve 13 comprises the spools 22 and 23.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5967780A JPS56156570A (en) | 1980-05-06 | 1980-05-06 | Check valve combined with balance piston type relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5967780A JPS56156570A (en) | 1980-05-06 | 1980-05-06 | Check valve combined with balance piston type relief valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56156570A true JPS56156570A (en) | 1981-12-03 |
Family
ID=13120056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5967780A Pending JPS56156570A (en) | 1980-05-06 | 1980-05-06 | Check valve combined with balance piston type relief valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56156570A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990003292A1 (en) * | 1988-09-28 | 1990-04-05 | Allied-Signal Inc. | A two-stage relief valve for master cylinder quick-fill chamber |
WO1990006463A1 (en) * | 1988-11-30 | 1990-06-14 | Kabushiki Kaisha Komatsu Seisakusho | Abnormal pressure prevention-vacuum prevention valve |
KR100585952B1 (en) | 2004-08-16 | 2006-06-02 | 이토고키 가부시키가이샤 | Gas supplying system |
JP2007507671A (en) * | 2003-10-01 | 2007-03-29 | ボッシュ レックスロス アーゲー | Pressure supply valve |
KR100764119B1 (en) * | 2004-02-25 | 2007-10-08 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Pilot poppet type relief valve |
CN100441885C (en) * | 2006-10-10 | 2008-12-10 | 太原理工大学 | Hydraulic balance valve capable of automatically adapting load change |
JP2014080870A (en) * | 2012-10-12 | 2014-05-08 | Kyosan Denki Co Ltd | Ventilation control valve device |
WO2023150448A1 (en) * | 2022-02-01 | 2023-08-10 | Sun Hydraulics, Llc | Pressure relief valve with a reverse free flow configuration integrated therewith |
-
1980
- 1980-05-06 JP JP5967780A patent/JPS56156570A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990003292A1 (en) * | 1988-09-28 | 1990-04-05 | Allied-Signal Inc. | A two-stage relief valve for master cylinder quick-fill chamber |
WO1990006463A1 (en) * | 1988-11-30 | 1990-06-14 | Kabushiki Kaisha Komatsu Seisakusho | Abnormal pressure prevention-vacuum prevention valve |
US5074330A (en) * | 1988-11-30 | 1991-12-24 | Kabushiki Kaisha Komatsu Seisakusho | Anti-abnormal-pressure/vacuum valve |
JP2007507671A (en) * | 2003-10-01 | 2007-03-29 | ボッシュ レックスロス アーゲー | Pressure supply valve |
KR101118073B1 (en) * | 2003-10-01 | 2012-02-27 | 보쉬 렉스로트 아게 | Feed pressure valve |
KR100764119B1 (en) * | 2004-02-25 | 2007-10-08 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Pilot poppet type relief valve |
KR100585952B1 (en) | 2004-08-16 | 2006-06-02 | 이토고키 가부시키가이샤 | Gas supplying system |
CN100441885C (en) * | 2006-10-10 | 2008-12-10 | 太原理工大学 | Hydraulic balance valve capable of automatically adapting load change |
JP2014080870A (en) * | 2012-10-12 | 2014-05-08 | Kyosan Denki Co Ltd | Ventilation control valve device |
WO2023150448A1 (en) * | 2022-02-01 | 2023-08-10 | Sun Hydraulics, Llc | Pressure relief valve with a reverse free flow configuration integrated therewith |
US12000363B2 (en) | 2022-02-01 | 2024-06-04 | Sun Hydraulics, Llc | Pressure relief valve with a reverse free flow configuration integrated therewith |
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