JPS5765465A - Relief valve - Google Patents
Relief valveInfo
- Publication number
- JPS5765465A JPS5765465A JP13840580A JP13840580A JPS5765465A JP S5765465 A JPS5765465 A JP S5765465A JP 13840580 A JP13840580 A JP 13840580A JP 13840580 A JP13840580 A JP 13840580A JP S5765465 A JPS5765465 A JP S5765465A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- relief
- diameter
- poppet
- constitution
- 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 obtain relief setting pressure in high accuracy in a relief falve operated at pressure acting on a difference of pressure receiving area between a pressure port side and back pressure chamber side, by constitution to cancel relief port pressure acting on a poppet.
CONSTITUTION: A poppet guide 7 of a relief poppet 4 is formed in a diameter D2 equal to a diameter D1 of a valve seat 9, and a small contour part 13 is formed by providing a stepped part 12 at an end side of the poppet guide 7 protruding to a back pressure chamber 5, then a difference of pressure receiving area is provided between a diameter D3 of the small contour part 13 applied with back pressure and the diameter D1 of the valve seat 9. A sealing member 3 penetrated with the small contour part 13 is oil-tightly fitted to a valve housing 3 to form a pressure chamber 15 communicated to a tank through a through hole 16 and passage 17. In this constitution, relief setting pressure is not affected by pressure P2 of a relief port 2 varied by a flow rate of surplus oil.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13840580A JPS5765465A (en) | 1980-10-03 | 1980-10-03 | Relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13840580A JPS5765465A (en) | 1980-10-03 | 1980-10-03 | Relief valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5765465A true JPS5765465A (en) | 1982-04-21 |
Family
ID=15221183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13840580A Pending JPS5765465A (en) | 1980-10-03 | 1980-10-03 | Relief valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5765465A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6173971U (en) * | 1984-10-22 | 1986-05-19 | ||
CN1309981C (en) * | 2003-06-23 | 2007-04-11 | 太平洋工业株式会社 | Release valve |
JP2021046909A (en) * | 2019-09-19 | 2021-03-25 | ナブテスコ株式会社 | Valve and construction machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718867A (en) * | 1980-07-08 | 1982-01-30 | Nissan Motor Co Ltd | Pressure control valve |
-
1980
- 1980-10-03 JP JP13840580A patent/JPS5765465A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5718867A (en) * | 1980-07-08 | 1982-01-30 | Nissan Motor Co Ltd | Pressure control valve |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6173971U (en) * | 1984-10-22 | 1986-05-19 | ||
CN1309981C (en) * | 2003-06-23 | 2007-04-11 | 太平洋工业株式会社 | Release valve |
JP2021046909A (en) * | 2019-09-19 | 2021-03-25 | ナブテスコ株式会社 | Valve and construction machine |
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