JPH0320770U - - Google Patents
Info
- Publication number
- JPH0320770U JPH0320770U JP8136889U JP8136889U JPH0320770U JP H0320770 U JPH0320770 U JP H0320770U JP 8136889 U JP8136889 U JP 8136889U JP 8136889 U JP8136889 U JP 8136889U JP H0320770 U JPH0320770 U JP H0320770U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- valve
- protrusion
- pilot
- inner hole
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Check Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図Ａは本考案の実施例の断面図、第１図Ｂ
は第１図Ａの要部拡大図、第２図は従来の技術の
断面図、第３図は本考案が用いられる油圧回路図
、第４図は本考案の特性曲線図である。
１……本体、１ａ……内孔、２……パイロツト
弁、２ａ，２ｂ……突起、３ａ……第１圧力室、
３ｂ……第２圧力室、４ａ……第３圧力室、４ｂ
……第４圧力室、５′……弁座体、５ａ′……弁
座、６……ポペツト弁、７……内孔部、９……ラ
ンド部、ＳＢ……絞り、１０ａ，１０ｂ……凹部
、ＤＵ……ダンパー。
Figure 1A is a sectional view of an embodiment of the present invention, Figure 1B
1 is an enlarged view of the main part of FIG. 1A, FIG. 2 is a sectional view of the conventional technology, FIG. 3 is a hydraulic circuit diagram in which the present invention is used, and FIG. 4 is a characteristic curve diagram of the present invention. 1...Main body, 1a...Inner hole, 2...Pilot valve, 2a, 2b...Protrusion, 3a...First pressure chamber,
3b...Second pressure chamber, 4a...Third pressure chamber, 4b
... Fourth pressure chamber, 5'... Valve seat body, 5a'... Valve seat, 6... Poppet valve, 7... Inner hole part, 9... Land part, SB... Throttle, 10a, 10b... ...Recess, DU...damper.
Claims (1)
動自在に嵌入し、このパイロツト弁と内孔とによ
り切換弁側に接続する第１圧力室と第２圧力室を
形成し、この内孔に連設して負荷側が接続する第
３圧力室と第４圧力室を形成し、前記第１圧力室
と第３圧力室との間或いは第２圧力室と第４圧力
室との間の一方に弁座を設け、この弁座に当接可
能で前記パイロツト弁の突起部が当接し開弁させ
られるポペツト弁を第１圧力室及び第２圧力室か
ら第３圧力室及び第４圧力室の方向への流れを順
方向とする配置としたパイロツト操作型逆止弁に
おいて、 前記弁座に内孔部を設け、この内孔部に前記パ
イロツト弁の突起部を微小隙間を有して嵌入する
ようにし、この突起部に先端がランド部で閉鎖さ
れた凹部を設け、この突起部とパイロツト弁を介
して対抗する側にダンパーを設けたことを特徴と
するパイロツト操作型逆止弁。[Claims for Utility Model Registration] A pilot valve having a protrusion is slidably fitted into the inner hole of the main body, and a first pressure chamber and a second pressure chamber are connected to the switching valve side through the pilot valve and the inner hole. A third pressure chamber and a fourth pressure chamber are formed in series with the inner hole and connected to the load side, and a pressure chamber between the first pressure chamber and the third pressure chamber or between the second pressure chamber and the fourth pressure chamber is formed. A valve seat is provided on one side between the valve seat and the valve seat, and a poppet valve that can be brought into contact with the valve seat and opened when the protrusion of the pilot valve is brought into contact with the poppet valve is connected to a third pressure from the first pressure chamber and the second pressure chamber. In a pilot-operated check valve arranged such that the flow is in the forward direction toward the chamber and the fourth pressure chamber, an inner hole is provided in the valve seat, and a protrusion of the pilot valve is inserted into the inner hole. A pilot operation characterized in that the protrusion is fitted with a gap, the protrusion is provided with a recess whose tip is closed by a land, and a damper is provided on the side opposing the protrusion via the pilot valve. type check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8136889U JPH0320770U (en) | 1989-07-10 | 1989-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8136889U JPH0320770U (en) | 1989-07-10 | 1989-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0320770U true JPH0320770U (en) | 1991-02-28 |
Family
ID=31627253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8136889U Pending JPH0320770U (en) | 1989-07-10 | 1989-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0320770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163615A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Relief type pressure regulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750987A (en) * | 1980-09-12 | 1982-03-25 | Kyowa Hakko Kogyo Co Ltd | Novel preparation of piperidine derivative |
-
1989
- 1989-07-10 JP JP8136889U patent/JPH0320770U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750987A (en) * | 1980-09-12 | 1982-03-25 | Kyowa Hakko Kogyo Co Ltd | Novel preparation of piperidine derivative |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163615A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Relief type pressure regulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0320770U (en) | ||
| JPH0320769U (en) | ||
| JPH01144575U (en) | ||
| JPS63187781U (en) | ||
| JPS6241970U (en) | ||
| JPH0317482U (en) | ||
| JPS62167977U (en) | ||
| JPS6075774U (en) | pressure control valve | |
| JPH02149409U (en) | ||
| JPS6349069U (en) | ||
| JPS646472U (en) | ||
| JPH0425078U (en) | ||
| JPS6026303U (en) | fluid control device | |
| JPH031369U (en) | ||
| JPS5958259U (en) | pilot operated check valve | |
| JPS6327767U (en) | ||
| JPS60191773U (en) | relief valve | |
| JPH0411709U (en) | ||
| JPH01173577U (en) | ||
| JPH0480976U (en) | ||
| JPH01132876U (en) | ||
| JPH0318704U (en) | ||
| JPH01154373U (en) | ||
| JPH0277181U (en) | ||
| JPH01165374U (en) |