JPS5635802A - Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oil - Google Patents
Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oilInfo
- Publication number
- JPS5635802A JPS5635802A JP11137379A JP11137379A JPS5635802A JP S5635802 A JPS5635802 A JP S5635802A JP 11137379 A JP11137379 A JP 11137379A JP 11137379 A JP11137379 A JP 11137379A JP S5635802 A JPS5635802 A JP S5635802A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure oil
- pressure
- main circuit
- divergent
- 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
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To lessen the pressure loss of main circuit by providing a solenoid operated valve, which is to be opened when divergence pressure oil is not being taken out, in parallel with a spool valve and a relief valve installed in the main circuit.
CONSTITUTION: A spool valve 11 and a relief valve 16 to be actuated by the differential pressure between the fore and back of a throttle valve 17 are installed in the main circuit 3, and a by-pass circiuit 14 containing a solenoid valve 15 is provided in parallel with this spool valve 11 and relief valve 16. When no divergent pressure oil is taken out of the divergence circuit 7, the solenoid valve 15 is opened, so that the pressure oil from the pump 1 flows through the by-pass circuit 14 and the differential pressure generated between the fore and back of the throttle valve 17 will open the spool valve 11. At this time, the valve opening pressure for the spool valve 11 is approx. 1kg/cm2, so that little pressure in the main circuit will be lost.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11137379A JPS5635802A (en) | 1979-08-31 | 1979-08-31 | Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11137379A JPS5635802A (en) | 1979-08-31 | 1979-08-31 | Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5635802A true JPS5635802A (en) | 1981-04-08 |
JPH0141842B2 JPH0141842B2 (en) | 1989-09-07 |
Family
ID=14559539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11137379A Granted JPS5635802A (en) | 1979-08-31 | 1979-08-31 | Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5635802A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014234830A (en) * | 2013-05-30 | 2014-12-15 | 株式会社ケーヒン | Relief valve and hydraulic control device having the same |
US9829089B2 (en) | 2013-05-30 | 2017-11-28 | Keihin Corporation | Hydraulic pressure control apparatus |
-
1979
- 1979-08-31 JP JP11137379A patent/JPS5635802A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014234830A (en) * | 2013-05-30 | 2014-12-15 | 株式会社ケーヒン | Relief valve and hydraulic control device having the same |
US9829089B2 (en) | 2013-05-30 | 2017-11-28 | Keihin Corporation | Hydraulic pressure control apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0141842B2 (en) | 1989-09-07 |
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