JPS5888059U - Relief pressure automatic adjustment type relief valve - Google Patents
Relief pressure automatic adjustment type relief valveInfo
- Publication number
- JPS5888059U JPS5888059U JP18286781U JP18286781U JPS5888059U JP S5888059 U JPS5888059 U JP S5888059U JP 18286781 U JP18286781 U JP 18286781U JP 18286781 U JP18286781 U JP 18286781U JP S5888059 U JPS5888059 U JP S5888059U
- Authority
- JP
- Japan
- Prior art keywords
- relief
- balance piston
- adjustment type
- pressure
- automatic adjustment
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の実施例を示す原理図、第２図は従来技
術に係るリリーフバルブを用いた油圧回路の一例を示す
回路図、第３図は前記実施例を用いた油圧回路の一例を
示す回路図、第４図は第２図の油圧回路における負荷圧
変化推移の一例を示すグラフ、第５図は第３図の油圧回
路における同様のグラフである。
図面中、４． １７はバランスピストン、５゜１５ａは
２次圧室、７，１４は針弁である。Fig. 1 is a principle diagram showing an embodiment of the present invention, Fig. 2 is a circuit diagram showing an example of a hydraulic circuit using a relief valve according to the prior art, and Fig. 3 is an example of a hydraulic circuit using the above embodiment. 4 is a graph showing an example of load pressure change transition in the hydraulic circuit of FIG. 2, and FIG. 5 is a similar graph for the hydraulic circuit of FIG. 3. In the drawing, 4. 17 is a balance piston, 5° 15a is a secondary pressure chamber, and 7 and 14 are needle valves.
Claims (1)
を有するバランスピストン型のリリーフバルブにおいて
、一方の室に前記バランスピストンの２次王室の圧力が
作用し他方の室である新たな２次王室に負荷圧が作用す
るようにしたバランスピストンと、このバランスピスト
ンの移動により開閉され前記針弁と同様の新たな針弁と
を有することを特徴とするリリーフ圧自動調整型リリー
フバルブ。In a balance piston type relief valve that has a needle valve set at a relief setting pressure and a balance piston, the pressure of the secondary chamber of the balance piston acts on one chamber, and the pressure of the secondary chamber of the balance piston acts on the other chamber, which is a new secondary chamber. A relief valve of automatic relief pressure adjustment type, characterized in that it has a balance piston on which a load pressure acts, and a new needle valve similar to the needle valve described above, which is opened and closed by the movement of the balance piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18286781U JPS5888059U (en) | 1981-12-10 | 1981-12-10 | Relief pressure automatic adjustment type relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18286781U JPS5888059U (en) | 1981-12-10 | 1981-12-10 | Relief pressure automatic adjustment type relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5888059U true JPS5888059U (en) | 1983-06-15 |
Family
ID=29981617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18286781U Pending JPS5888059U (en) | 1981-12-10 | 1981-12-10 | Relief pressure automatic adjustment type relief valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888059U (en) |
-
1981
- 1981-12-10 JP JP18286781U patent/JPS5888059U/en active Pending
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