JPS5639309A - Controller for fluid - Google Patents
Controller for fluidInfo
- Publication number
- JPS5639309A JPS5639309A JP11337279A JP11337279A JPS5639309A JP S5639309 A JPS5639309 A JP S5639309A JP 11337279 A JP11337279 A JP 11337279A JP 11337279 A JP11337279 A JP 11337279A JP S5639309 A JPS5639309 A JP S5639309A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- controlled
- port
- flow rate
- sliding
- 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
Landscapes
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To smooth the functioning of a cylinder by a method wherein the quantity of sliding of a main spool is controlled in response to applying currents, and directions are controlled and flow rate is proportionally controlled, in an electromagnetic proportional throttle change-over valve used for the fluid controller.
CONSTITUTION: The fluid controller is provided with a two stage type electromagnetic proportional throttle change-over valve 10, a single rod cylinder 50 and a sequence valve 60. The quantity of sliding of the main spool of a main valve 30 is controlled in response to the currents applied to an electromagnetic pilot valve 20, opening to each port P, A, B, T is adjusted, and flow rate is proportionally controlled. When oil discharged from a port 50a at the rod side exceeds the setting pressure of the sequence valve 60, the oil is fed to a port 50b at the head side through the sequence valve 60, a pressure line 71, the change-over valve 10 and a load line. Thus, the speed of extension of the single rod cylinder 50 can be increased.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11337279A JPS5639309A (en) | 1979-09-03 | 1979-09-03 | Controller for fluid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11337279A JPS5639309A (en) | 1979-09-03 | 1979-09-03 | Controller for fluid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639309A true JPS5639309A (en) | 1981-04-15 |
JPS6323402B2 JPS6323402B2 (en) | 1988-05-16 |
Family
ID=14610609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11337279A Granted JPS5639309A (en) | 1979-09-03 | 1979-09-03 | Controller for fluid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639309A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173601A (en) * | 1981-04-20 | 1982-10-26 | Hitachi Constr Mach Co Ltd | Hydraulic circuit |
JPS5942301U (en) * | 1982-09-11 | 1984-03-19 | 内田油圧機器工業株式会社 | Hydraulic cylinder differential circuit device |
US6164415A (en) * | 1997-03-21 | 2000-12-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Hydraulic control apparatus for industrial vehicles |
JP2007162946A (en) * | 2005-12-12 | 2007-06-28 | Linde Material Handling Gmbh & Co Kg | Valve device |
JP2008539377A (en) * | 2005-04-28 | 2008-11-13 | ベスローテン・フェンノートシャップ・ホルマトロ・インダストリアル・イクウィップメント | Tool with hydraulic valve system |
JP2011504990A (en) * | 2007-11-28 | 2011-02-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Valve assembly |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5293892U (en) * | 1976-01-07 | 1977-07-13 |
-
1979
- 1979-09-03 JP JP11337279A patent/JPS5639309A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5293892U (en) * | 1976-01-07 | 1977-07-13 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173601A (en) * | 1981-04-20 | 1982-10-26 | Hitachi Constr Mach Co Ltd | Hydraulic circuit |
JPH0112962B2 (en) * | 1981-04-20 | 1989-03-02 | Hitachi Construction Machinery | |
JPS5942301U (en) * | 1982-09-11 | 1984-03-19 | 内田油圧機器工業株式会社 | Hydraulic cylinder differential circuit device |
US6164415A (en) * | 1997-03-21 | 2000-12-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Hydraulic control apparatus for industrial vehicles |
JP2008539377A (en) * | 2005-04-28 | 2008-11-13 | ベスローテン・フェンノートシャップ・ホルマトロ・インダストリアル・イクウィップメント | Tool with hydraulic valve system |
JP2007162946A (en) * | 2005-12-12 | 2007-06-28 | Linde Material Handling Gmbh & Co Kg | Valve device |
JP2011504990A (en) * | 2007-11-28 | 2011-02-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Valve assembly |
Also Published As
Publication number | Publication date |
---|---|
JPS6323402B2 (en) | 1988-05-16 |
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