JPH025662U - - Google Patents
Info
- Publication number
- JPH025662U JPH025662U JP8309988U JP8309988U JPH025662U JP H025662 U JPH025662 U JP H025662U JP 8309988 U JP8309988 U JP 8309988U JP 8309988 U JP8309988 U JP 8309988U JP H025662 U JPH025662 U JP H025662U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- sleeve
- hydraulic fluid
- input
- control valve
- 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 3
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Description
第１図は本考案にかかる液圧制御弁の一実施例
を示す要部断面図、第２図は第１図の部分的断面
図、第３図は第２図の部分的斜視図、第４図及び
第５図は本考案の作動例を示す説明図、第６図、
第７図は駆動電流の一例を示す波形図、第８図は
同流量特性を示すグラフ、第９図は従来の液圧制
御弁の構造を示す要部断面図である。
１…弁本体、２…入力部、３…出力部、４…サ
イドカバー、５…スリーブ、９…液圧ポンプ、１
１…インレツトポート、１５…ドレインポート、
１７…パワーシリンダ、１９…第１アウトレツト
ポート、２１…第２アウトレツトポート、２２…
フエールセイフ用連通オリフイス、３１…コイル
ボビン、３３…空心コイル、３５…磁石、３７…
第１ヨーク、３９…第２ヨーク、５０…スプール
、５０ａ…第１のスプール、５０ｂ…第２のスプ
ール、５１…積層型圧電素子、５３…リード線、
５５…コントローラ。
1 is a sectional view of a main part showing an embodiment of a hydraulic control valve according to the present invention, FIG. 2 is a partial sectional view of FIG. 1, FIG. 3 is a partial perspective view of FIG. 2, and FIG. 4 and 5 are explanatory diagrams showing an example of the operation of the present invention, and FIG.
FIG. 7 is a waveform diagram showing an example of the drive current, FIG. 8 is a graph showing the same flow rate characteristics, and FIG. 9 is a sectional view of a main part showing the structure of a conventional hydraulic pressure control valve. 1... Valve body, 2... Input section, 3... Output section, 4... Side cover, 5... Sleeve, 9... Hydraulic pump, 1
1... Inlet port, 15... Drain port,
17...Power cylinder, 19...First outlet port, 21...Second outlet port, 22...
Fail-safe communication orifice, 31...coil bobbin, 33...air-core coil, 35...magnet, 37...
First yoke, 39... Second yoke, 50... Spool, 50a... First spool, 50b... Second spool, 51... Laminated piezoelectric element, 53... Lead wire,
55...Controller.
Claims (1)
該弁本体内に嵌着されて前記作動液の入出力ポー
トが形成されたスリーブと、上記スリーブ内に摺
動自在に嵌入されて、上記作動液を入出力ポート
で連通もしくは遮断するスプールと、該スプール
を前記スリーブ内で摺動させる駆動手段とを具備
して成る液圧制御弁において、 前記スプールを第１のスプールと第２のスプー
ルとに分割形成し、この第１のスプールと第２の
スプールとの間に、印加する電圧に応じて伸縮す
る圧電素子を介挿固定したことを特徴とする液圧
制御弁。[Claims for Utility Model Registration] A valve body having a hydraulic fluid input section and an output section;
a sleeve fitted into the valve body to form an input/output port for the hydraulic fluid; a spool slidably fitted into the sleeve to communicate or block the hydraulic fluid through the input/output port; A hydraulic control valve comprising driving means for sliding the spool within the sleeve, wherein the spool is divided into a first spool and a second spool, and the first spool and the second spool are separated. A hydraulic control valve characterized in that a piezoelectric element that expands and contracts depending on the applied voltage is inserted and fixed between the spool and the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8309988U JPH025662U (en) | 1988-06-23 | 1988-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8309988U JPH025662U (en) | 1988-06-23 | 1988-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025662U true JPH025662U (en) | 1990-01-16 |
Family
ID=31307823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8309988U Pending JPH025662U (en) | 1988-06-23 | 1988-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948918U (en) * | 1972-08-05 | 1974-04-30 | ||
| JP2013185645A (en) * | 2012-03-07 | 2013-09-19 | Honda Motor Co Ltd | Valve device and failure detector of hydraulic circuit |
-
1988
- 1988-06-23 JP JP8309988U patent/JPH025662U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948918U (en) * | 1972-08-05 | 1974-04-30 | ||
| JP2013185645A (en) * | 2012-03-07 | 2013-09-19 | Honda Motor Co Ltd | Valve device and failure detector of hydraulic circuit |
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