JPH0431372U - - Google Patents
Info
- Publication number
- JPH0431372U JPH0431372U JP7301890U JP7301890U JPH0431372U JP H0431372 U JPH0431372 U JP H0431372U JP 7301890 U JP7301890 U JP 7301890U JP 7301890 U JP7301890 U JP 7301890U JP H0431372 U JPH0431372 U JP H0431372U
- Authority
- JP
- Japan
- Prior art keywords
- spool valve
- groove
- valve element
- spool
- axial direction
- 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
- 239000012530 fluid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Description
第１図は本考案の実施例断面図、第２図は本考
案のスプールの斜視図、第３図はスプールを平面
、正面、端面にて示した説明図、第４図は流量制
御時のスプール動作説明図、第５図は第４図の動
作状態でスプールの外周溝に対する流体の流れを
示した説明図、第６図は本発明の他の実施例を示
したスプール説明図、第７図は従来のスプール弁
断面図、第８図は従来のスプール弁体斜視図、第
９図は第７図のスプール弁のスプール位置に対す
るタンク流れ込み流量及び高圧室圧力を示した特
性図である。
図中、１０……ボデイ、１２……摺動穴、１４
……スプール弁体、１６……ポート溝（高圧室側
）、１８……ポート溝（低圧室側）、２０……油
圧ポンプ、２２……タンク、２４……負荷ポート
、２６……リリーフ弁、３０……溝、３０ａ……
入口溝、３０ｂ……出口溝、３２……騒音吸収溝
、Ａ……高圧室、Ｂ……低圧室。
Figure 1 is a sectional view of an embodiment of the present invention, Figure 2 is a perspective view of the spool of the present invention, Figure 3 is an explanatory diagram showing the spool in plan, front, and end faces, and Figure 4 is during flow rate control. FIG. 5 is an explanatory diagram showing the flow of fluid into the outer circumferential groove of the spool in the operating state of FIG. 4. FIG. 6 is an explanatory diagram of the spool showing another embodiment of the present invention. 9 is a sectional view of a conventional spool valve, FIG. 8 is a perspective view of a conventional spool valve body, and FIG. 9 is a characteristic diagram showing the tank inflow flow rate and high pressure chamber pressure with respect to the spool position of the spool valve of FIG. 7. In the figure, 10...Body, 12...Sliding hole, 14
... Spool valve body, 16 ... Port groove (high pressure chamber side), 18 ... Port groove (low pressure chamber side), 20 ... Hydraulic pump, 22 ... Tank, 24 ... Load port, 26 ... Relief valve , 30...groove, 30a...
Inlet groove, 30b... Outlet groove, 32... Noise absorption groove, A... High pressure chamber, B... Low pressure chamber.
Claims (1)
け、該スプール弁体は軸方向の移動に伴つてボデ
イ側に形成されたポート溝間に流体を流す溝を外
周軸方向に形成したスプール弁に於いて、 前記スプール弁体の外周軸方向に形成された溝
の途中に、該溝を十文字に横切る円周方向の騒音
吸収溝を設けたことを特徴とするスプール弁。[Claim for Utility Model Registration] A spool valve element is slidably provided in a sliding hole of the body, and the spool valve element is a groove that allows fluid to flow between port grooves formed on the body side as the spool valve element moves in the axial direction. The spool valve is characterized in that a circumferential noise absorbing groove is provided in the middle of the groove formed in the outer circumferential axial direction of the spool valve body to cross the groove in a crosswise direction. spool valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7301890U JPH0431372U (en) | 1990-07-10 | 1990-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7301890U JPH0431372U (en) | 1990-07-10 | 1990-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431372U true JPH0431372U (en) | 1992-03-13 |
Family
ID=31611475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7301890U Pending JPH0431372U (en) | 1990-07-10 | 1990-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010249143A (en) * | 2009-02-04 | 2010-11-04 | Fuji Seiko Kk | Thermostat device |
| WO2013111859A1 (en) * | 2012-01-25 | 2013-08-01 | 株式会社アドヴィックス | Spool valve |
| WO2015001675A1 (en) * | 2013-07-05 | 2015-01-08 | 株式会社小松製作所 | Valve device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599470A (en) * | 1979-01-25 | 1980-07-29 | Zahnradfabrik Friedrichshafen | Control valve |
-
1990
- 1990-07-10 JP JP7301890U patent/JPH0431372U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599470A (en) * | 1979-01-25 | 1980-07-29 | Zahnradfabrik Friedrichshafen | Control valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010249143A (en) * | 2009-02-04 | 2010-11-04 | Fuji Seiko Kk | Thermostat device |
| WO2013111859A1 (en) * | 2012-01-25 | 2013-08-01 | 株式会社アドヴィックス | Spool valve |
| US9835260B2 (en) | 2012-01-25 | 2017-12-05 | Advics Co., Ltd. | Spool valve |
| WO2015001675A1 (en) * | 2013-07-05 | 2015-01-08 | 株式会社小松製作所 | Valve device |
| CN104412015A (en) * | 2013-07-05 | 2015-03-11 | 株式会社小松制作所 | Valve device |
| CN104412015B (en) * | 2013-07-05 | 2016-03-23 | 株式会社小松制作所 | Valve device |
| US9429240B2 (en) | 2013-07-05 | 2016-08-30 | Komatsu Ltd. | Valve device |