JPS5510171A - Hydraulic pressure controlling system for hydraulically operated apparatus - Google Patents
Hydraulic pressure controlling system for hydraulically operated apparatusInfo
- Publication number
- JPS5510171A JPS5510171A JP8376978A JP8376978A JPS5510171A JP S5510171 A JPS5510171 A JP S5510171A JP 8376978 A JP8376978 A JP 8376978A JP 8376978 A JP8376978 A JP 8376978A JP S5510171 A JPS5510171 A JP S5510171A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- accumulator
- pressure
- hydraulically operated
- sensor
- 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
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To provide a hydraulic pressure controlling system for hydraulically operated apparauts, which is capable of controlling hydraulic pressure in an accumulator automatically and correctly by comparing the hydraulic pressure in accumulator and a reference pressure, opening and closing an electromagnetic valve on the basis of the result of this comparison, and thereby establishing and interrupting communication of hydraulic pressure to the accumulator.
CONSTITUTION: Hydraulic pressure in accumulator 21 is detected by pressure sensor 24 and output of the sensor 24 is afforded to comparator 23, in which the signal from sensor 24 is compared with a reference signal afforded from potentiometer 25. If hydraulic pressure in accumulator 21 is lower than the reference value, electromagnetic valve 22 is opened to supply hydraulic fluid from pressure source 10 into accumulator 5, so that hydraulic pressure in accumulator 5 is maintained at a required level. Thus, it is enabled to control the hydraulic pressure in accumulator 5 automatically and correctly at a required level suited for operating hydraulically operated apparatus.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8376978A JPS5510171A (en) | 1978-07-10 | 1978-07-10 | Hydraulic pressure controlling system for hydraulically operated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8376978A JPS5510171A (en) | 1978-07-10 | 1978-07-10 | Hydraulic pressure controlling system for hydraulically operated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5510171A true JPS5510171A (en) | 1980-01-24 |
Family
ID=13811793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8376978A Pending JPS5510171A (en) | 1978-07-10 | 1978-07-10 | Hydraulic pressure controlling system for hydraulically operated apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5510171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756669A (en) * | 1986-07-31 | 1988-07-12 | Nippon Air Brake Co., Ltd. | Air compressor control apparatus |
| US4990076A (en) * | 1989-05-31 | 1991-02-05 | Halliburton Company | Pressure control apparatus and method |
| US5168703A (en) * | 1989-07-18 | 1992-12-08 | Jaromir Tobias | Continuously active pressure accumulator power transfer system |
-
1978
- 1978-07-10 JP JP8376978A patent/JPS5510171A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756669A (en) * | 1986-07-31 | 1988-07-12 | Nippon Air Brake Co., Ltd. | Air compressor control apparatus |
| US4990076A (en) * | 1989-05-31 | 1991-02-05 | Halliburton Company | Pressure control apparatus and method |
| US5168703A (en) * | 1989-07-18 | 1992-12-08 | Jaromir Tobias | Continuously active pressure accumulator power transfer system |
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