JPS5715161A - Pressure control valve - Google Patents
Pressure control valveInfo
- Publication number
- JPS5715161A JPS5715161A JP9102780A JP9102780A JPS5715161A JP S5715161 A JPS5715161 A JP S5715161A JP 9102780 A JP9102780 A JP 9102780A JP 9102780 A JP9102780 A JP 9102780A JP S5715161 A JPS5715161 A JP S5715161A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- supply port
- backpressure chamber
- poppet
- orifice
- 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
Links
Landscapes
- Safety Valves (AREA)
Abstract
PURPOSE: To shorten the necessary time for closing an orifice and reduce the peak pressure by constituting a pressure control valve in such a way that the orifice which communicates to a supply port and a backpressure chamber is closed during shift of a piston poppet.
CONSTITUTION: A pressure control valve is constituted in such a way that the opening on the periphery of the orifice 24 which communicates to a supply port 1 and a backpressure chamber 11 is closed during a piston poppet 7 shifts. When the pressure on the supply port 1 side reaches a set value, a pilot poppet 13 shifts a little to the left side in the figure, and the pressure in the backpressure chamber 11 begins to decrease. Accordingly, also the piston poppet 7 retreats, and during this time, the opening of the orifice is closed, and communication of the backpressure chamber 11 to the supply port 1 is cut off. As a result of this, the oil pressure in the backpressure chamber 11 lowers sharply, and a differential pressure is formed between the supply port 1 and the backpressure chamber, so a relief poppet 4 is shifted, pressed to the backpressure chamber 11 side. Accordingly, the through-holes 6a and 6b of a check poppet 3 are allowed to communicate, and the oil pressure in the supply port 1 is released to a relief port 2, and the pressure lowers to a set value.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9102780A JPS5715161A (en) | 1980-07-03 | 1980-07-03 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9102780A JPS5715161A (en) | 1980-07-03 | 1980-07-03 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5715161A true JPS5715161A (en) | 1982-01-26 |
| JPH0217749B2 JPH0217749B2 (en) | 1990-04-23 |
Family
ID=14015034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9102780A Granted JPS5715161A (en) | 1980-07-03 | 1980-07-03 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5715161A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH035072A (en) * | 1989-06-01 | 1991-01-10 | Kobe Steel Ltd | Method for joining sintered alloy of titanium carbide and steel and joined body thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127625A (en) * | 1976-04-19 | 1977-10-26 | Nishina Kogyo Kk | Vaccum preventing and pressure controlling valve |
-
1980
- 1980-07-03 JP JP9102780A patent/JPS5715161A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127625A (en) * | 1976-04-19 | 1977-10-26 | Nishina Kogyo Kk | Vaccum preventing and pressure controlling valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH035072A (en) * | 1989-06-01 | 1991-01-10 | Kobe Steel Ltd | Method for joining sintered alloy of titanium carbide and steel and joined body thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217749B2 (en) | 1990-04-23 |
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