JPS57146969A - Temperature-sensitive relief valve - Google Patents
Temperature-sensitive relief valveInfo
- Publication number
- JPS57146969A JPS57146969A JP56030664A JP3066481A JPS57146969A JP S57146969 A JPS57146969 A JP S57146969A JP 56030664 A JP56030664 A JP 56030664A JP 3066481 A JP3066481 A JP 3066481A JP S57146969 A JPS57146969 A JP S57146969A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- oil
- pressure
- valve
- liquid
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Temperature-Responsive Valves (AREA)
- Safety Valves (AREA)
Abstract
PURPOSE:To keep hydraulic pressure constant by changing the position of a valve spring by liquid, the volume of which is changed depending upon the temperature. CONSTITUTION:When the temperature rises, liquid 7 is expanded, so that a valve spring 8 is pushed to the right through a retainer 14. When the valve 9 moves to the right to reduce the area of an escape hole 10 so as to lessen the quantity of oil which is about to escape in large quantities through the escape hole 10, because a temperature rise causes the density and viscosity of oil to lower, whereby pressure P is kept constant. When the temperature falls, since the volume of liquid 17 is contracted, the valve spring 8 and the valve 9 are pushed by oil pressure to move to the left, so that the opening area of the escape hole 10 is changed corresponding to the temperature, whereby pressure P of the oil is kept constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030664A JPS57146969A (en) | 1981-03-04 | 1981-03-04 | Temperature-sensitive relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030664A JPS57146969A (en) | 1981-03-04 | 1981-03-04 | Temperature-sensitive relief valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57146969A true JPS57146969A (en) | 1982-09-10 |
Family
ID=12310005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56030664A Pending JPS57146969A (en) | 1981-03-04 | 1981-03-04 | Temperature-sensitive relief valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57146969A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02266176A (en) * | 1989-04-04 | 1990-10-30 | Natl Space Dev Agency Japan<Nasda> | Relief valve for low temperature |
JP2001012694A (en) * | 1999-06-18 | 2001-01-16 | Mas Fab Sulzer Burckhardt Ag | Pressure limit vavle |
DE10340115A1 (en) * | 2003-08-30 | 2005-03-24 | Bayerische Motoren Werke Ag | Hydraulic valve has expandable element which in expanded state defines preloading of control spool, whereby expanded state of expandable element is dependent upon temperature of fluid at control connection |
-
1981
- 1981-03-04 JP JP56030664A patent/JPS57146969A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02266176A (en) * | 1989-04-04 | 1990-10-30 | Natl Space Dev Agency Japan<Nasda> | Relief valve for low temperature |
JP2001012694A (en) * | 1999-06-18 | 2001-01-16 | Mas Fab Sulzer Burckhardt Ag | Pressure limit vavle |
DE10340115A1 (en) * | 2003-08-30 | 2005-03-24 | Bayerische Motoren Werke Ag | Hydraulic valve has expandable element which in expanded state defines preloading of control spool, whereby expanded state of expandable element is dependent upon temperature of fluid at control connection |
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