JPH02102078U - - Google Patents
Info
- Publication number
- JPH02102078U JPH02102078U JP1011589U JP1011589U JPH02102078U JP H02102078 U JPH02102078 U JP H02102078U JP 1011589 U JP1011589 U JP 1011589U JP 1011589 U JP1011589 U JP 1011589U JP H02102078 U JPH02102078 U JP H02102078U
- Authority
- JP
- Japan
- Prior art keywords
- side port
- spool
- oil
- source side
- pair
- 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
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図および第２図は本考案の第１の実施例を
示し、第１図は圧力制御弁の縦断面図、第２図は
スプールのストローク量と流路面積の関係を示す
特性線図、第３図は第２の実施例を示す圧力制御
弁の縦断面図、第４図および第５図は従来技術を
示し、第４図は油圧回路図、第５図は圧力制御弁
の縦断面図である。
１……油圧モータ（アクチユエータ）、２……
慣性体、３Ａ，３Ｂ……油配管、５……方向切換
弁、６……油圧ポンプ、１１……圧力制御弁、１
２……弁本体、１３Ａ，１３Ｂ……油圧源側ポー
ト、１４Ａ，１４Ｂ……アクチユエータ側ポート
、１５……スプール摺動穴、１６Ａ，１６Ｂ，１
７Ａ，１７Ｂ……油溝、１９Ａ，１９Ｂ……油室
、２０……スプール、２１，２２Ａ，２２Ｂ，２
３Ａ，２３Ｂ……ランド、２４Ａ，２４Ｂ……ス
トツパ、２５Ａ，２５Ｂ……ばね、２６Ａ，２６
Ｂ……絞り通路、３１Ａ，３１Ｂ，４３Ａ，４３
Ｂ……油路、４１Ａ，４１Ｂ……環状溝、４２Ａ
，４２Ｂ……絞り通路。
1 and 2 show a first embodiment of the present invention, FIG. 1 is a longitudinal cross-sectional view of the pressure control valve, and FIG. 2 is a characteristic diagram showing the relationship between the stroke amount of the spool and the flow path area. , FIG. 3 is a longitudinal sectional view of a pressure control valve showing a second embodiment, FIGS. 4 and 5 show the prior art, FIG. 4 is a hydraulic circuit diagram, and FIG. 5 is a longitudinal sectional view of a pressure control valve. It is a front view. 1... Hydraulic motor (actuator), 2...
Inertia body, 3A, 3B... Oil piping, 5... Directional switching valve, 6... Hydraulic pump, 11... Pressure control valve, 1
2... Valve body, 13A, 13B... Hydraulic source side port, 14A, 14B... Actuator side port, 15... Spool sliding hole, 16A, 16B, 1
7A, 17B...Oil groove, 19A, 19B...Oil chamber, 20...Spool, 21, 22A, 22B, 2
3A, 23B...Land, 24A, 24B...Stopper, 25A, 25B...Spring, 26A, 26
B... Throttle passage, 31A, 31B, 43A, 43
B... Oil passage, 41A, 41B... Annular groove, 42A
, 42B... Throttle passage.
Claims (1)
ートとアクチユエータ側ポートとを有し、該アク
チユエータ側ポートが油圧源側ポートよりも軸方
向外側に位置してなる弁本体と、該弁本体のスプ
ール摺動穴内に挿嵌され、前記各ポート間を連通
、遮断するランドを有したスプールと、該スプー
ルの軸方向両端側に位置して、前記弁本体に形成
された一対の油室と、該各油室を前記油圧源側ポ
ートと連通すべく前記スプールに形成された絞り
通路と、前記各油室内に設けられ、前記スプール
を常時中立位置に付勢する一対のばねとからなる
圧力制御弁において、前記弁本体には前記各油室
とアクチユエータ側ポートとの間に位置して、前
記油圧源側ポートからスプール摺動穴に開口する
一対の油路を形成したことを特徴とする圧力側制
御弁。 A valve body has a hydraulic power source side port and an actuator side port spaced apart in the axial direction of the spool sliding hole, and the actuator side port is located axially outward from the hydraulic source side port; a spool that is inserted into a spool sliding hole and has a land that communicates and blocks communication between the ports; a pair of oil chambers that are located on both ends of the spool in the axial direction and are formed in the valve body; Pressure control comprising a throttle passage formed in the spool to communicate each oil chamber with the oil pressure source side port, and a pair of springs provided in each oil chamber to always bias the spool to a neutral position. In the valve, a pair of oil passages are formed in the valve body, located between each of the oil chambers and the actuator side port, and opening from the oil pressure source side port to the spool sliding hole. Side control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010115U JPH0744802Y2 (en) | 1989-01-31 | 1989-01-31 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989010115U JPH0744802Y2 (en) | 1989-01-31 | 1989-01-31 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102078U true JPH02102078U (en) | 1990-08-14 |
| JPH0744802Y2 JPH0744802Y2 (en) | 1995-10-11 |
Family
ID=31217487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989010115U Expired - Fee Related JPH0744802Y2 (en) | 1989-01-31 | 1989-01-31 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0744802Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6078102A (en) * | 1983-10-05 | 1985-05-02 | Mitsubishi Heavy Ind Ltd | Brake valve |
| JPS6154501U (en) * | 1984-09-13 | 1986-04-12 | ||
| JPS6169568U (en) * | 1984-10-15 | 1986-05-13 |
-
1989
- 1989-01-31 JP JP1989010115U patent/JPH0744802Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6078102A (en) * | 1983-10-05 | 1985-05-02 | Mitsubishi Heavy Ind Ltd | Brake valve |
| JPS6154501U (en) * | 1984-09-13 | 1986-04-12 | ||
| JPS6169568U (en) * | 1984-10-15 | 1986-05-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0744802Y2 (en) | 1995-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02102078U (en) | ||
| JPH0138321Y2 (en) | ||
| JPH01111880U (en) | ||
| JPH0434283Y2 (en) | ||
| JPS6154501U (en) | ||
| JPH01122502U (en) | ||
| JPH0310442Y2 (en) | ||
| JPS6235987Y2 (en) | ||
| JPS6327974Y2 (en) | ||
| JPH03114601U (en) | ||
| JPS61191501U (en) | ||
| JP2528135Y2 (en) | Double pilot type switching valve | |
| JPS61191502U (en) | ||
| JPH03123169U (en) | ||
| JPH0234302U (en) | ||
| JPH0721980Y2 (en) | 3-position switching solenoid valve | |
| JPH0527749Y2 (en) | ||
| JPH02150478U (en) | ||
| JPS60116475U (en) | directional valve | |
| JP3588154B2 (en) | Signal pressure delay device | |
| JPS6136845Y2 (en) | ||
| JPH03123168U (en) | ||
| JPH03123167U (en) | ||
| JPS61205867U (en) | ||
| JPS62136676U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |