JPS56156504A - Multistage flow rate controller of hydraulic circuit - Google Patents
Multistage flow rate controller of hydraulic circuitInfo
- Publication number
- JPS56156504A JPS56156504A JP6021280A JP6021280A JPS56156504A JP S56156504 A JPS56156504 A JP S56156504A JP 6021280 A JP6021280 A JP 6021280A JP 6021280 A JP6021280 A JP 6021280A JP S56156504 A JPS56156504 A JP S56156504A
- Authority
- JP
- Japan
- Prior art keywords
- over
- signal change
- valve
- over device
- change
- 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
Abstract
PURPOSE: To enable multistage flow rate control rapid in the response speed by forming circuits connecting an electromagnetic direction change-over valve provided on the discharge side of a pump and an actuator into parallel circuits, and interposing an electromagnetic proportional flow quantity control valve in each parallel circuit.
CONSTITUTION: An electromagnetic direction change-over valve 3 is provided on the discharge side of a pump 1, and electromagnetic proportional flow quantity control valves 4 and 5 are interposed within the parallel circuits respectively between the discharge side of the valve 3 and the actuator 6. Solenoids 3A and 3B on both sides of the direction change-over valve 3 are connected to a signal change-over device 7. The signal change-over device 7 is connected to a signal change-over device through a timer 8 and an OR circuit 9. Signal change-over devices 11 and 12 are connected on the output side of the signal change-over device 10, and the solenoids 4A and 5A of respective valves 4 and 5 are controlled by these output signals. The signal change-over devices 11 and 12 produce one value selected from the pressure values P11WP1m and P21WP2m in accordance with the output of the signal change-over device 10.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6021280A JPS56156504A (en) | 1980-05-07 | 1980-05-07 | Multistage flow rate controller of hydraulic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6021280A JPS56156504A (en) | 1980-05-07 | 1980-05-07 | Multistage flow rate controller of hydraulic circuit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26860690A Division JPH03144102A (en) | 1990-10-05 | 1990-10-05 | Multistage flow rate controlling method of hydraulic circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56156504A true JPS56156504A (en) | 1981-12-03 |
JPH037802B2 JPH037802B2 (en) | 1991-02-04 |
Family
ID=13135612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6021280A Granted JPS56156504A (en) | 1980-05-07 | 1980-05-07 | Multistage flow rate controller of hydraulic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56156504A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232921A (en) * | 1984-05-04 | 1985-11-19 | Toshiba Mach Co Ltd | Screw speed/torque setting device for injection molder |
-
1980
- 1980-05-07 JP JP6021280A patent/JPS56156504A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232921A (en) * | 1984-05-04 | 1985-11-19 | Toshiba Mach Co Ltd | Screw speed/torque setting device for injection molder |
JPH04451B2 (en) * | 1984-05-04 | 1992-01-07 | Toshiba Machine Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPH037802B2 (en) | 1991-02-04 |
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