JPS6455401A - Hydraulic controller - Google Patents
Hydraulic controllerInfo
- Publication number
- JPS6455401A JPS6455401A JP21128587A JP21128587A JPS6455401A JP S6455401 A JPS6455401 A JP S6455401A JP 21128587 A JP21128587 A JP 21128587A JP 21128587 A JP21128587 A JP 21128587A JP S6455401 A JPS6455401 A JP S6455401A
- Authority
- JP
- Japan
- Prior art keywords
- shaft body
- pilot pressure
- pressure chamber
- communication path
- chamber
- 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
Abstract
PURPOSE:To circulate working oil surely with no-load by arranging a shaft body at one end of spool at the side of pilot pressure chamber and providing a displacing means to the shaft body through a communication path. CONSTITUTION:A through-hole 40 is made in the center of a spool 3 and a shaft body 43 is arranged slidably at a small diameter portion 42 of the through- hole 40. A communication path 44 is formed in the shaft body 43; then an adjusting screw 45 in screwed over a portion of a cap 13 facing with the left endface of the shaft body 43 so as to contact the shaft body 43 with the right endface of the adjusting screw 45 through a spring 47. When a switching chamber 11 is enclosed, a pilot pressure chamber 24 is opened through the communication path 44 to a tank thus lowering the pressure in the pilot pressure chamber 24. Consequently, a valve body at unload valve section B can be moved from the pump pressure lead-in chamber 25 side to the pilot pressure chamber 24, thus surely enabling no-load circulation of working oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21128587A JPS6455401A (en) | 1987-08-27 | 1987-08-27 | Hydraulic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21128587A JPS6455401A (en) | 1987-08-27 | 1987-08-27 | Hydraulic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6455401A true JPS6455401A (en) | 1989-03-02 |
Family
ID=16603400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21128587A Pending JPS6455401A (en) | 1987-08-27 | 1987-08-27 | Hydraulic controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6455401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10254552B2 (en) | 2016-04-19 | 2019-04-09 | LIMO GmbH | Laser array |
-
1987
- 1987-08-27 JP JP21128587A patent/JPS6455401A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10254552B2 (en) | 2016-04-19 | 2019-04-09 | LIMO GmbH | Laser array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES8206776A1 (en) | Oil pump unit | |
| GB2282678A (en) | Control valve with pressure compensator valves | |
| JPS6455401A (en) | Hydraulic controller | |
| GB1005387A (en) | Improvements in or relating to hydraulic pumps or motors | |
| IT1171521B (en) | Pump control and relief valve | |
| JPS57163706A (en) | Multiple cylinder equipment | |
| JPS552830A (en) | Discharge control valve with pressure compensation | |
| JPS5586905A (en) | Directional control valve with pressure compensation | |
| JPS5698562A (en) | Fuel injecting device for use in internal combustion engine | |
| JPS54132022A (en) | Priming fuel increasing device of fuel distributing injection pump | |
| JPS57127106A (en) | Hydraulic driving circuit | |
| JPS5718867A (en) | Pressure control valve | |
| JPS6487983A (en) | Solenoid hydraulic valve | |
| JPS648380A (en) | Vane pump equipped with flow control device | |
| IT1218214B (en) | Pressure regulation hydraulic valve with electric drive | |
| JPS56106014A (en) | Hydraulic lifter | |
| JPS57204345A (en) | Vortex type shock absorber | |
| JPS5321319A (en) | Variable timing valve lifter | |
| JPS6430904A (en) | Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve | |
| SU1154491A1 (en) | Hydraulic drive | |
| JPS55103168A (en) | Manual reversing valve | |
| JPS57120702A (en) | Composite valve | |
| JPS57131888A (en) | Oil hydraulic controller | |
| JPS57129959A (en) | Oil hydraulic circuit driven by inertial mass | |
| JPS5511950A (en) | Rear body lowering sheed controller |