JPS6431201U - - Google Patents
Info
- Publication number
- JPS6431201U JPS6431201U JP12558087U JP12558087U JPS6431201U JP S6431201 U JPS6431201 U JP S6431201U JP 12558087 U JP12558087 U JP 12558087U JP 12558087 U JP12558087 U JP 12558087U JP S6431201 U JPS6431201 U JP S6431201U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- feedback
- pressure
- port
- solenoid
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Servomotors (AREA)
Description
第１図は本考案の第１実施例の要部縦断正面図
、第２図は同上要部の拡大断面図、第３図Ａ〜Ｃ
は同上作動状態の説明図、第４図は本考案の第２
実施例の要部縦断正面図、第５図Ａ〜Ｅは同上作
動状態の説明図、第６図は通電量と出力圧の関係
を示す線図である。
１，４１……弁部、２，４２……駆動部、５，
４５……弁本体、７，４７……スプール、１１…
…復帰ばね、１３，６１……比例ソレノイド、１
７ａ，１７ｂ，５９ａ，５９ｂ……フイードバツ
ク通路、１８，５７……フイードバツク室、２０
……ハイカツト弁、２３……弁体、２９……調圧
スプリング、５６……第２セツトスプリング、Ｐ
……供給ポート、Ａ……第１出力ポート、ＥＡ…
…第１排出ポート。
Fig. 1 is a longitudinal sectional front view of the main part of the first embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of the same, and Figs. 3 A to C
is an explanatory diagram of the same operating state as above, and Fig. 4 is the second diagram of the present invention.
FIGS. 5A to 5E are longitudinal sectional front views of the main parts of the embodiment, and FIGS. 5A to 5E are explanatory diagrams of the operating state of the same. FIG. 6 is a diagram showing the relationship between the amount of energization and the output pressure. 1,41... Valve part, 2,42... Drive part, 5,
45... Valve body, 7, 47... Spool, 11...
...Return spring, 13,61...Proportional solenoid, 1
7a, 17b, 59a, 59b...Feedback passage, 18, 57...Feedback room, 20
...High-cut valve, 23 ... Valve body, 29 ... Pressure regulating spring, 56 ... Second set spring, P
...Supply port, A...First output port, EA...
...First discharge port.
補正 昭６２．９．２４
図面の簡単な説明を次のように補正する。
明細書第２５頁第１０〜１２行に記載の「５６
……第２セツトスプリング、・・・第１排出ポー
ト。」を、下記の通り補正します。
５１……第１セツトスプリング、５６……第２
セツトスプリング、Ｐ……供給ポート、Ａ……第
１出力ポート、ＥＡ……第１排出ポート、Ｂ……
第２出力ポート、ＥＢ……第２排出ポート。Amendment September 24, 1982 The brief description of the drawing is amended as follows. “56” described on page 25, lines 10 to 12 of the specification
...Second set spring, ...First discharge port. ' will be corrected as follows. 51...first set spring, 56...second
Set spring, P... Supply port, A... First output port, EA... First discharge port, B...
Second output port, EB...Second exhaust port.
Claims (1)
る弁本体内に、出力ポートと供給ポートまたは排
出ポート間の流路を切換える弁部材を設けた弁部
と、該弁部材の一端に駆動力を作用させる駆動部
と、該弁部材の他端に復帰力を作用させる復帰ば
ねとを備えた弁において、 上記弁部に、弁部材に復帰ばねの作用方向にフ
イードバツク流体圧を作用させるフイードバツク
室と、該フイードバツク室と出力ポートを連通さ
せるフイードバツク通路を設け、 該フイードバツク通路に、設定圧が調整可能な
調圧スプリングと、上記設定圧とフイードバツク
流体圧との大小により駆動し、フイードバツク流
体圧が設定圧より大きい場合にフイードバツク通
路を遮断する弁体とを有するハイカツト弁を設け
、 上記駆動部を、鉄心間に作用する吸引力がソレ
ノイドへの通電量に比例する比例ソレノイドによ
つて、該ソレノイドへの通電量によつて定まる駆
動力を出力するものとして構成した、 ことを特徴とする電空比例弁。[Claims for Utility Model Registration] A valve part in which a valve member for switching a flow path between the output port and the supply port or the discharge port is provided in a valve body having a supply port, an output port, and a discharge port; In a valve equipped with a drive unit that applies a driving force to one end and a return spring that applies a return force to the other end of the valve member, feedback fluid pressure is applied to the valve unit in the direction in which the return spring acts on the valve member. A feedback chamber to be actuated and a feedback passage communicating the feedback chamber and the output port are provided, and a pressure regulating spring whose set pressure can be adjusted is provided in the feedback passage, and the pressure regulating spring is driven by the magnitude of the set pressure and the feedback fluid pressure, A high-cut valve is provided with a valve body that shuts off the feedback passage when the feedback fluid pressure is higher than the set pressure, and the drive section is driven by a proportional solenoid in which the suction force acting between the iron cores is proportional to the amount of current applied to the solenoid. An electro-pneumatic proportional valve, characterized in that the valve is configured to output a driving force determined by the amount of current applied to the solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987125580U JPH0640966Y2 (en) | 1987-08-18 | 1987-08-18 | Electro-pneumatic proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987125580U JPH0640966Y2 (en) | 1987-08-18 | 1987-08-18 | Electro-pneumatic proportional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6431201U true JPS6431201U (en) | 1989-02-27 |
| JPH0640966Y2 JPH0640966Y2 (en) | 1994-10-26 |
Family
ID=31376316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987125580U Expired - Lifetime JPH0640966Y2 (en) | 1987-08-18 | 1987-08-18 | Electro-pneumatic proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640966Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236280A (en) * | 1975-09-13 | 1977-03-19 | Agency Of Ind Science & Technol | Load detecting system using negative pressure feed back style servo-va lve |
| JPS629004A (en) * | 1985-07-04 | 1987-01-17 | Komatsu Ltd | Hydraulic controller |
-
1987
- 1987-08-18 JP JP1987125580U patent/JPH0640966Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236280A (en) * | 1975-09-13 | 1977-03-19 | Agency Of Ind Science & Technol | Load detecting system using negative pressure feed back style servo-va lve |
| JPS629004A (en) * | 1985-07-04 | 1987-01-17 | Komatsu Ltd | Hydraulic controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0640966Y2 (en) | 1994-10-26 |
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