JPH026802U - - Google Patents
Info
- Publication number
- JPH026802U JPH026802U JP8654388U JP8654388U JPH026802U JP H026802 U JPH026802 U JP H026802U JP 8654388 U JP8654388 U JP 8654388U JP 8654388 U JP8654388 U JP 8654388U JP H026802 U JPH026802 U JP H026802U
- Authority
- JP
- Japan
- Prior art keywords
- poppet valve
- flow rate
- pilot
- circuit
- control
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面は、本考案に係るパイロツト式ポペツトバ
ルブの流量制御装置の実施例を示したものであつ
て、第１図は農用トラクタの全体側面図、第２図
は制御システムのブロツク回路図、第３図は油圧
回路図、第４図、第５図はバルブ部の展開断面図
、第６図は第二実施例を示すバルブ部の展開断面
図、第７図は同上回路図である。
図中、１２は主ポペツトバルブ、１３は主ポペ
ツト、１５はパイロツトバルブ、１６はパイロツ
ト用ポペツト、１６ａはオリフイス、２５ａは絞
りである。
The drawings show an embodiment of the pilot type poppet valve flow control device according to the present invention, in which Fig. 1 is an overall side view of an agricultural tractor, Fig. 2 is a block circuit diagram of the control system, and Fig. 3 is a block diagram of the control system. 4 and 5 are developed sectional views of the valve portion, FIG. 6 is a developed sectional view of the valve portion showing the second embodiment, and FIG. 7 is the same circuit diagram. In the figure, 12 is a main poppet valve, 13 is a main poppet, 15 is a pilot valve, 16 is a pilot poppet, 16a is an orifice, and 25a is a throttle.
Claims (1)
制御を行うためのパイロツト回路を設け、該パイ
ロツト回路に設けたパイロツトバルブを開閉イン
チング制御してポペツトバルブの流量制御を行う
に、前記開閉インチング制御状態でパイロツト回
路の流量制限をする絞り機構を設けたことを特徴
とするパイロツト式ポペツトバルブの流量制御装
置。 A pilot circuit is provided in the poppet valve circuit provided in the main oil passage to control the flow rate of the poppet valve, and the pilot circuit provided in the pilot circuit controls the opening and closing inching of the poppet valve to control the flow rate of the poppet valve. A flow rate control device for a pilot type poppet valve, characterized by being provided with a throttle mechanism that limits the flow rate of a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988086543U JPH0726561Y2 (en) | 1988-06-29 | 1988-06-29 | Flow control device for pilot type poppet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988086543U JPH0726561Y2 (en) | 1988-06-29 | 1988-06-29 | Flow control device for pilot type poppet valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH026802U true JPH026802U (en) | 1990-01-17 |
| JPH0726561Y2 JPH0726561Y2 (en) | 1995-06-14 |
Family
ID=31311182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988086543U Expired - Lifetime JPH0726561Y2 (en) | 1988-06-29 | 1988-06-29 | Flow control device for pilot type poppet valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726561Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61208109A (en) * | 1985-03-12 | 1986-09-16 | Daikin Ind Ltd | Pressure reducing valve |
| JPS62200003A (en) * | 1986-02-25 | 1987-09-03 | Kayaba Ind Co Ltd | Cylinder control device |
| JPS6367405A (en) * | 1986-09-09 | 1988-03-26 | Kanzaki Kokyukoki Mfg Co Ltd | Hydraulic control mechanism for elevating work machine |
| JPH01261504A (en) * | 1988-04-08 | 1989-10-18 | Kubota Ltd | Control valve structure |
-
1988
- 1988-06-29 JP JP1988086543U patent/JPH0726561Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61208109A (en) * | 1985-03-12 | 1986-09-16 | Daikin Ind Ltd | Pressure reducing valve |
| JPS62200003A (en) * | 1986-02-25 | 1987-09-03 | Kayaba Ind Co Ltd | Cylinder control device |
| JPS6367405A (en) * | 1986-09-09 | 1988-03-26 | Kanzaki Kokyukoki Mfg Co Ltd | Hydraulic control mechanism for elevating work machine |
| JPH01261504A (en) * | 1988-04-08 | 1989-10-18 | Kubota Ltd | Control valve structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726561Y2 (en) | 1995-06-14 |