JPH0351286U - - Google Patents
Info
- Publication number
- JPH0351286U JPH0351286U JP11170889U JP11170889U JPH0351286U JP H0351286 U JPH0351286 U JP H0351286U JP 11170889 U JP11170889 U JP 11170889U JP 11170889 U JP11170889 U JP 11170889U JP H0351286 U JPH0351286 U JP H0351286U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- spool
- pressure chamber
- land
- communication path
- 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.)
- Granted
Links
Landscapes
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Description
第１図は本考案の一実施例による電磁比例制御
弁３０の概略断面図、第２図は同、要部の拡大断
面図、第３図は、本考案の他の実施例による電磁
比例制御弁４０の要部の拡大断面図、第４図は従
来の電磁比例制御弁１の断面図、第５図は同、要
部の拡大断面図である。
１……電磁比例制御弁、２……バルブハウジン
グ、３……比例ソレノイド、４……摺動孔、５…
…スプールバルブ、６……供給ポート（高圧）、
７……ドレインポート（低圧）、８……タンクポ
ート、９……ドレインポート（低圧）、１０……
配線コード、１１……コイル、１２……アーマチ
ヤ、１３……環状の供給側摺動面、１４……環状
のタンク側摺動面、１５……環状のドレイン側摺
動面、１６……バルブリターンスプリング、１７
……供給側第一のランド、１８……供給側第二の
ランド、１９……タンク側ランド、２０……ドレ
イン側ランド、２１……環状の油圧バランス溝、
２２……高圧室、２３……低圧室、３０……電磁
比例制御弁、３１……スプールバルブ、３２……
中央通路、３３……第一の連通孔、３４……第二
の連通孔、３５……連通路、３６……フイルター
、３７……係合部、３８……袋部、３９……係合
段部、４０……電磁比例制御弁、４１……連通路
、４２……第一の連通孔、４３……第二の連通孔
、４４……スナツプリング、４５……フイルター
、４６……プレート、４７……Ｏリング、Ｃ……
ゴミ等。
FIG. 1 is a schematic sectional view of an electromagnetic proportional control valve 30 according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part, and FIG. 3 is an electromagnetic proportional control valve 30 according to another embodiment of the present invention. FIG. 4 is an enlarged sectional view of the main part of the valve 40, FIG. 4 is a sectional view of the conventional electromagnetic proportional control valve 1, and FIG. 5 is an enlarged sectional view of the main part. 1... Solenoid proportional control valve, 2... Valve housing, 3... Proportional solenoid, 4... Sliding hole, 5...
...Spool valve, 6...Supply port (high pressure),
7... Drain port (low pressure), 8... Tank port, 9... Drain port (low pressure), 10...
Wiring code, 11... Coil, 12... Armature, 13... Annular supply side sliding surface, 14... Annular tank side sliding surface, 15... Annular drain side sliding surface, 16... Valve. Return spring, 17
... Supply side first land, 18 ... Supply side second land, 19 ... Tank side land, 20 ... Drain side land, 21 ... Annular hydraulic balance groove,
22...High pressure chamber, 23...Low pressure chamber, 30...Solenoid proportional control valve, 31...Spool valve, 32...
Central passage, 33... First communication hole, 34... Second communication hole, 35... Communication path, 36... Filter, 37... Engagement portion, 38... Bag portion, 39... Engagement Stepped portion, 40... Solenoid proportional control valve, 41... Communication path, 42... First communication hole, 43... Second communication hole, 44... Snap spring, 45... Filter, 46... Plate, 47...O-ring, C...
Garbage etc.
Claims (1)
ハウジングと、 高圧室および低圧室を画成するランドを形成す
るとともに前記バルブハウジング内を摺動するス
プールバルブとを有するスプール型制御弁であつ
て、 前記ランドの一部に形成した油圧バランス溝を
、前記高圧室に連通路により連通させるとともに
、この連通路の途中にフイルターを配置したこと
を特徴とするスプール型制御弁。[Claims for Utility Model Registration] A spool-type control having a valve housing forming a high-pressure port and a low-pressure port, and a spool valve forming a land defining a high-pressure chamber and a low-pressure chamber and sliding within the valve housing. A spool type control valve, characterized in that a hydraulic balance groove formed in a part of the land is communicated with the high pressure chamber through a communication path, and a filter is disposed in the middle of the communication path.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989111708U JPH067230Y2 (en) | 1989-09-26 | 1989-09-26 | Spool type control valve |
| DE19904015776 DE4015776C2 (en) | 1989-05-24 | 1990-05-16 | Control spool valve |
| US07/528,063 US5062454A (en) | 1989-05-24 | 1990-05-23 | Spool control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989111708U JPH067230Y2 (en) | 1989-09-26 | 1989-09-26 | Spool type control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0351286U true JPH0351286U (en) | 1991-05-17 |
| JPH067230Y2 JPH067230Y2 (en) | 1994-02-23 |
Family
ID=31660175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989111708U Expired - Lifetime JPH067230Y2 (en) | 1989-05-24 | 1989-09-26 | Spool type control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067230Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019872U (en) * | 1983-07-19 | 1985-02-12 | 豊田工機株式会社 | Pilot type relief valve |
-
1989
- 1989-09-26 JP JP1989111708U patent/JPH067230Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019872U (en) * | 1983-07-19 | 1985-02-12 | 豊田工機株式会社 | Pilot type relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067230Y2 (en) | 1994-02-23 |
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