JPS56167905A - Proportional electromagnetic type pressure control valve - Google Patents
Proportional electromagnetic type pressure control valveInfo
- Publication number
- JPS56167905A JPS56167905A JP7123980A JP7123980A JPS56167905A JP S56167905 A JPS56167905 A JP S56167905A JP 7123980 A JP7123980 A JP 7123980A JP 7123980 A JP7123980 A JP 7123980A JP S56167905 A JPS56167905 A JP S56167905A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- flapper
- nozzle
- control valve
- pressure 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.)
- Pending
Links
Landscapes
- Servomotors (AREA)
Abstract
PURPOSE: To decrease the number of component and reduce the production cost of a proportional electromagnetic type pressure control valve used for a hydraulic shovel and the like by controlling the output pressure of a nozzle and a flapper with the output of a force motor and changing the set pressure of a direct reducing valve.
CONSTITUTION: When an electric signal is given to a force motor 11, an electromagnetic power corresponding to the signal is generated and a flapper 9 moves to the position where the electromagnetic power is balanced with energizing force of a spring material 10. A gap between a nozzle 6 and the flapper 9 changes according to a movement of the flapper 9, and a back pressure of a nozzle in the secondary pressure room 7 changes alike. A pressure load by a negative pressure works on a spool 2 and controls a pressure load of the output port 16.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7123980A JPS56167905A (en) | 1980-05-28 | 1980-05-28 | Proportional electromagnetic type pressure control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7123980A JPS56167905A (en) | 1980-05-28 | 1980-05-28 | Proportional electromagnetic type pressure control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56167905A true JPS56167905A (en) | 1981-12-23 |
Family
ID=13454940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7123980A Pending JPS56167905A (en) | 1980-05-28 | 1980-05-28 | Proportional electromagnetic type pressure control valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56167905A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4585030A (en) * | 1984-04-06 | 1986-04-29 | Borg-Warner Corporation | Proportional hydraulic solenoid controller |
US4590968A (en) * | 1983-06-29 | 1986-05-27 | Mannesmann Rexroth Gmbh | Pilot valve operated pressure reducing valve |
-
1980
- 1980-05-28 JP JP7123980A patent/JPS56167905A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4590968A (en) * | 1983-06-29 | 1986-05-27 | Mannesmann Rexroth Gmbh | Pilot valve operated pressure reducing valve |
US4585030A (en) * | 1984-04-06 | 1986-04-29 | Borg-Warner Corporation | Proportional hydraulic solenoid controller |
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