JPS63157582U - - Google Patents
Info
- Publication number
- JPS63157582U JPS63157582U JP4898887U JP4898887U JPS63157582U JP S63157582 U JPS63157582 U JP S63157582U JP 4898887 U JP4898887 U JP 4898887U JP 4898887 U JP4898887 U JP 4898887U JP S63157582 U JPS63157582 U JP S63157582U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- pilot oil
- working chamber
- spool
- switching valve
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 7
- 239000010720 hydraulic oil Substances 0.000 claims 1
Landscapes
- Fluid-Driven Valves (AREA)
Description
第１図及び第２図は本考案の１実施例を示し、
第１図は一部を破断して示す縦断面図、第２図は
流量調整弁の拡大断面図である。第３図は従来の
電磁パイロツト切換弁の一部を破断して示す縦断
面図である。
電磁弁……１、パイロツトポート……１３，１
４、パイロツト油通路……１５，１６、切換弁…
…２、スプール……４、作動室……７，８、流量
調整弁……２０ａ，２０ｂ。
1 and 2 show one embodiment of the present invention,
FIG. 1 is a longitudinal cross-sectional view partially cut away, and FIG. 2 is an enlarged cross-sectional view of the flow rate regulating valve. FIG. 3 is a partially cut away vertical sectional view of a conventional electromagnetic pilot switching valve. Solenoid valve...1, Pilot port...13,1
4. Pilot oil passage...15, 16. Switching valve...
...2, Spool...4, Working chamber...7, 8, Flow rate adjustment valve...20a, 20b.
Claims (1)
たパイロツト油を一方のパイロツト油通路を経て
切換弁のスプールの一端に限界された一方の作動
室に供給すると同時に上記スプールの他端に限界
された他方の作動室内のパイロツト油を他方のパ
イロツト油通路を経て上記電磁弁の他方のパイロ
ツトポートに戻すことにより上記スプールを移動
させて作動油の流路を切り換える電磁パイロツト
切換弁において、上記各パイロツト油通路中にそ
れぞれ上記作動室へ向かうパイロツト油の流量を
制限し、逆方向へ向かうパイロツト油を自由に流
過させる流量調整弁を介装したことを特徴とする
電磁パイロツト切換弁。 The pilot oil discharged from one pilot port of the solenoid valve is supplied through one pilot oil passage to one working chamber bounded by one end of the spool of the switching valve, and simultaneously supplied to the other working chamber bounded by the other end of the spool. In an electromagnetic pilot switching valve that switches the flow path of the hydraulic oil by moving the spool by returning the pilot oil in the working chamber to the other pilot port of the solenoid valve through the other pilot oil passage, each of the pilot oil passages An electromagnetic pilot switching valve characterized in that a flow rate regulating valve is installed therein to limit the flow rate of pilot oil heading toward the working chamber, and to allow pilot oil flowing in the opposite direction to freely flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4898887U JPS63157582U (en) | 1987-04-02 | 1987-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4898887U JPS63157582U (en) | 1987-04-02 | 1987-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63157582U true JPS63157582U (en) | 1988-10-17 |
Family
ID=30871029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4898887U Pending JPS63157582U (en) | 1987-04-02 | 1987-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63157582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02286986A (en) * | 1989-04-28 | 1990-11-27 | Keihin Seiki Mfg Co Ltd | Automaic shuttoff valve |
-
1987
- 1987-04-02 JP JP4898887U patent/JPS63157582U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02286986A (en) * | 1989-04-28 | 1990-11-27 | Keihin Seiki Mfg Co Ltd | Automaic shuttoff valve |