JPH01116277U - - Google Patents
Info
- Publication number
- JPH01116277U JPH01116277U JP1235288U JP1235288U JPH01116277U JP H01116277 U JPH01116277 U JP H01116277U JP 1235288 U JP1235288 U JP 1235288U JP 1235288 U JP1235288 U JP 1235288U JP H01116277 U JPH01116277 U JP H01116277U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- control
- pressure
- small diameter
- diameter portion
- 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
- 230000015572 biosynthetic process Effects 0.000 description 1
Description
第１図は本考案一実施例の圧力制御弁を示す断
面図、第２図は実施例制御弁の要部を示す拡大断
面図、第３図及び第４図は、本考案実施例の切欠
溝の形成方法の例を示す図である。
１……バルブボデイ、２……バルブスプール、
１１……バルブ穴、２０……小径部、２１……ポ
ンプ側ランド、２２……ドレン側ランド、１１１
……ポンプ圧ポート、１１２……ドレンポート、
２１１……増圧側切欠溝、２２１……減圧側切欠
溝。
Fig. 1 is a sectional view showing a pressure control valve according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view showing main parts of the control valve according to the embodiment, and Figs. 3 and 4 are cutaways of the embodiment of the invention. It is a figure which shows the example of the formation method of a groove|channel. 1... Valve body, 2... Valve spool,
11...Valve hole, 20...Small diameter part, 21...Pump side land, 22...Drain side land, 111
...Pump pressure port, 112...Drain port,
211...Pressure increase side notch groove, 221...Pressure reduction side notch groove.
Claims (1)
レンポートとを有するバルブ穴と、 該バルブ穴に摺動可能に設けられ、小径部を挾
んでランドが形成されたバルブスプール、 該バルブスプールの小径部とバルブ穴との間に
形成され、バルブスプールの摺動により両ポート
に選択的に接続されて液圧を制御される制御圧室
と、 該制御圧室の両側のランドの端縁部に対向して
対称にテーパ状に形成された切欠溝と、 を備えていることを特徴とする圧力制御弁。[Scope of Claim for Utility Model Registration] A valve hole formed in a valve body and having a pump pressure port and a drain port; a valve spool slidably provided in the valve hole and having a land formed between the small diameter portion; A control pressure chamber formed between the small diameter portion of the valve spool and the valve hole, and selectively connected to both ports by sliding of the valve spool to control hydraulic pressure; and lands on both sides of the control pressure chamber. A pressure control valve comprising: a notch groove formed in a symmetrical tapered shape facing an end edge of the pressure control valve;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235288U JPH01116277U (en) | 1988-02-01 | 1988-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235288U JPH01116277U (en) | 1988-02-01 | 1988-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01116277U true JPH01116277U (en) | 1989-08-04 |
Family
ID=31221722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1235288U Pending JPH01116277U (en) | 1988-02-01 | 1988-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01116277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165337A (en) * | 1999-12-13 | 2001-06-22 | Nidec Tosok Corp | Valve spool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040865B2 (en) * | 1981-01-21 | 1985-09-12 | ベクトン・デイツキンソン・アンド・カンパニ− | Enlargement guide for syringes |
-
1988
- 1988-02-01 JP JP1235288U patent/JPH01116277U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6040865B2 (en) * | 1981-01-21 | 1985-09-12 | ベクトン・デイツキンソン・アンド・カンパニ− | Enlargement guide for syringes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165337A (en) * | 1999-12-13 | 2001-06-22 | Nidec Tosok Corp | Valve spool |