JPH0266776U - - Google Patents
Info
- Publication number
- JPH0266776U JPH0266776U JP14393188U JP14393188U JPH0266776U JP H0266776 U JPH0266776 U JP H0266776U JP 14393188 U JP14393188 U JP 14393188U JP 14393188 U JP14393188 U JP 14393188U JP H0266776 U JPH0266776 U JP H0266776U
- Authority
- JP
- Japan
- Prior art keywords
- load port
- sleeve
- servo valve
- port
- way servo
- 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
- Multiple-Way Valves (AREA)
Description
第１図は本考案の実施例を示す三方サーボ弁の
要部断面図、第２図は同じく従来例を示す三方サ
ーボ弁の要部断面図である。
１……スプール、２……スリーブ、３……ラン
ド部、４……流通部、８……ドレーンポート、Ｃ
，Ｃ１，Ｃ２……負荷ポート、Ｐｓ……給油ポー
ト、Ｔ……戻りポート。
FIG. 1 is a sectional view of a main part of a three-way servo valve showing an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of a three-way servo valve showing a conventional example. 1... Spool, 2... Sleeve, 3... Land section, 4... Distribution section, 8... Drain port, C
, C 1 , C 2 ... Load port, Ps ... Oil supply port, T ... Return port.
Claims (1)
に摺動自由に収装し、このスプールの両端部と中
央部とにスリーブに摺接するランド部を形成し、
両端のランド部の内側に面してスリーブに第１の
負荷ポートと、油圧源に連通する給油ポートと、
第２の負荷ポートと、タンクに連通する戻りポー
トとをこの順番で形成するとともに、第１の負荷
ポートと第２の負荷ポートとを相互に連通した三
方サーボ弁において、スプールの端の第１の負荷
ポートに近接するランド部に臨んでスリーブに前
記タンクに連通するドレーンポートを開口したこ
とを特徴とする三方サーボ弁。 A spool that is driven in the axial direction is slidably housed inside the sleeve, and lands that come into sliding contact with the sleeve are formed at both ends and the center of the spool,
A first load port on the sleeve facing inside the land portions at both ends, and an oil supply port communicating with the hydraulic source;
In the three-way servo valve, in which a second load port and a return port communicating with the tank are formed in this order, and the first load port and the second load port are communicated with each other, the first A three-way servo valve, characterized in that a drain port communicating with the tank is opened in the sleeve facing a land portion adjacent to the load port of the three-way servo valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988143931U JPH0640381Y2 (en) | 1988-11-02 | 1988-11-02 | Three-way servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988143931U JPH0640381Y2 (en) | 1988-11-02 | 1988-11-02 | Three-way servo valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0266776U true JPH0266776U (en) | 1990-05-21 |
| JPH0640381Y2 JPH0640381Y2 (en) | 1994-10-19 |
Family
ID=31411195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988143931U Expired - Lifetime JPH0640381Y2 (en) | 1988-11-02 | 1988-11-02 | Three-way servo valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640381Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49124637U (en) * | 1973-02-19 | 1974-10-25 |
-
1988
- 1988-11-02 JP JP1988143931U patent/JPH0640381Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49124637U (en) * | 1973-02-19 | 1974-10-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0640381Y2 (en) | 1994-10-19 |