JPS6114269U - electric switching valve - Google Patents
electric switching valveInfo
- Publication number
- JPS6114269U JPS6114269U JP9880884U JP9880884U JPS6114269U JP S6114269 U JPS6114269 U JP S6114269U JP 9880884 U JP9880884 U JP 9880884U JP 9880884 U JP9880884 U JP 9880884U JP S6114269 U JPS6114269 U JP S6114269U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- hydraulic pressure
- nozzle
- switching valve
- switching
- 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
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示した断面図、第２図は第
１図の実施例で用いるバイモルフ電歪素子の駆動電圧に
対する変位量を示したグラフ図、第３図は第１図の実施
例の切換林態を示した断面図、第４図は本考案で用いる
他のフラツパーノズル構造の説明図、第５図は第４図の
フラツパーノズル構造における流体の噴流による吸着力
の発生を示した説明図、第６図は片側切換構造をもつ本
考案の他の実施例を示した断面図、第６図は圧力バラ−
ンス型針弁を用いた本考案の他の実施例を示した断面図
、第８，９図は第７図の圧力バランス型針弁の作用説明
図、第１０図は従来例を示した断面図である。
１０：バルブボデイ、１２：切換スプール、１２ａ １
２ｂｙ １ ２ｃｔ １ ２ｄ ：ランド、１３，
１４，３３：スプール液圧室、１５：絞り、１６ａ，１
６ｂ：スプリング、１７，１８，３０：ノズル、１９，
２０：連通路、２１，２２，２８，２９：バイモルフ電
歪素子、２３，２４：固定部、２５ａ，２５ｂ，２６ａ
，２６ｂ：リード端子線、２７：ノズルフラッパ二部材
、３１：ノズル孔、３２：フラット面、３４，３５：圧
カバランス、３６．３７：ワイヤ。FIG. 1 is a cross-sectional view showing one embodiment of the present invention, FIG. 2 is a graph showing the amount of displacement with respect to the driving voltage of the bimorph electrostrictive element used in the embodiment of FIG. 1, and FIG. Figure 4 is an explanatory diagram of another flapper nozzle structure used in the present invention, Figure 5 is an adsorption by fluid jet in the flapper nozzle structure of Figure 4. An explanatory diagram showing the generation of force, Fig. 6 is a sectional view showing another embodiment of the present invention having a one-sided switching structure, and Fig. 6 shows a pressure valve.
8 and 9 are action explanatory diagrams of the pressure-balanced needle valve of FIG. 7, and FIG. 10 is a sectional view of a conventional example. It is a diagram. 10: Valve body, 12: Switching spool, 12a 1
2by 1 2ct 1 2d: Land, 13,
14, 33: Spool hydraulic chamber, 15: Throttle, 16a, 1
6b: Spring, 17, 18, 30: Nozzle, 19,
20: Communication path, 21, 22, 28, 29: Bimorph electrostrictive element, 23, 24: Fixed portion, 25a, 25b, 26a
, 26b: lead terminal wire, 27: nozzle flapper two members, 31: nozzle hole, 32: flat surface, 34, 35: pressure balance, 36.37: wire.
Claims (4)
、 スプリングの押圧で中立位置に支持された切換スプール
と；該切換スプールの一方または両方のスプール端面に
形成されパイロット液圧が供給されたスプール液圧室と
；該スプール液圧室に供給されたパイロット液圧を排出
する排出流路と、； 駆動電圧の印加で変位して、排出流路を開放又−は閉鎖
し前記切換スプールを切換位置に移動させるバイモルフ
電歪素子とを備えたことを特徴とする電気式切換弁。(1) In an electric switching valve that switches the flow direction of fluid, there is a switching spool supported in a neutral position by the pressure of a spring; and a pilot fluid pressure is supplied to the switching spool formed on one or both spool end faces of the switching spool. a spool hydraulic pressure chamber; a discharge passage for discharging the pilot hydraulic pressure supplied to the spool hydraulic pressure chamber; and a discharge passage for discharging the pilot hydraulic pressure supplied to the spool hydraulic pressure chamber; and a discharge passage for opening or closing the discharge passage by being displaced by application of a driving voltage to perform the switching. An electric switching valve characterized by comprising a bimorph electrostrictive element that moves a spool to a switching position.
とし、前記バイモルフ電歪素子は該ノ×ルを開蘭するノ
ズルフラツパ構造としたことを特徴する実用新案登録請
求の範囲第１項記載の電気式切換弁。(2) The utility model according to claim 1, wherein the discharge passage of the spool hydraulic pressure chamber has a nozzle structure, and the bimorph electrostrictive element has a nozzle flapper structure that opens the nozzle. Electric switching valve.
相対するノズル開口部のフラット面の直径をノズル孔直
径の２倍以上としたことを特徴とする実用新案登録請求
の範囲第２項記載の電気式切換弁。(3) The electric system according to claim 2 of the utility model registration claim, characterized in that the diameter of the flat surface of the nozzle opening facing the nozzle flapper made of the bimorph electrostrictive element is at least twice the diameter of the nozzle hole. switching valve.
電歪素子により駆動される圧力バランス型針弁を設けた
害用新案登録請求の範囲第１項記載の電気式切換弁。(4) The electric switching valve according to claim 1, wherein a pressure balanced needle valve driven by the bimorph electrostrictive element is provided in the discharge flow path of the spool hydraulic pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9880884U JPS6114269U (en) | 1984-06-30 | 1984-06-30 | electric switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9880884U JPS6114269U (en) | 1984-06-30 | 1984-06-30 | electric switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6114269U true JPS6114269U (en) | 1986-01-27 |
Family
ID=30658325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9880884U Pending JPS6114269U (en) | 1984-06-30 | 1984-06-30 | electric switching valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028570A (en) * | 1988-06-24 | 1990-01-12 | Koganei Ltd | Directional control valve using piezoelectric element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153321A (en) * | 1974-05-31 | 1975-12-10 | ||
| JPS59112527A (en) * | 1982-12-17 | 1984-06-29 | 株式会社デンソー | Piezoelectric type drive device |
-
1984
- 1984-06-30 JP JP9880884U patent/JPS6114269U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153321A (en) * | 1974-05-31 | 1975-12-10 | ||
| JPS59112527A (en) * | 1982-12-17 | 1984-06-29 | 株式会社デンソー | Piezoelectric type drive device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028570A (en) * | 1988-06-24 | 1990-01-12 | Koganei Ltd | Directional control valve using piezoelectric element |
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