GB1068512A - Improvements in or relating to a hydraulic supply system - Google Patents
Improvements in or relating to a hydraulic supply systemInfo
- Publication number
- GB1068512A GB1068512A GB75763A GB75763A GB1068512A GB 1068512 A GB1068512 A GB 1068512A GB 75763 A GB75763 A GB 75763A GB 75763 A GB75763 A GB 75763A GB 1068512 A GB1068512 A GB 1068512A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pumps
- pressure
- hydraulic
- vessel
- desired value
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
- G05D16/2073—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source with a plurality of pressure sources
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
1,068,512. Automatic control of hydraulic supply. VICKERS Ltd. Jan.2, 1964 [Jan .7, 1963], No.757/63. Heading G3R. In a system including a hydraulic pump for supplying liquid to apparatus, changes of force or pressure of the apparatus from a desired value develop signals which, after integration, serve to correct the force or pressure by automatically controlling pump delivery. As shown, electrical signals representative of deviations of pressure in a vessel 1 from a desired value set on a unit 20 are derived from a comparator 22 and applied through an integrating velodyne 23 to adjust the position of potentiometers 25. Each potentiometer 25 controls, through an amplifier 12, the delivery of an adjustable swash-plate pump 6 supplying a hydraulic motor 7. Motors 7 drive fixed swash-plate pumps 2 supplying liquid to a vessel 1 and the drive adjustment is such as to restore the pressure in vessel 1 to the desired value. Feedback signals dependent on the settings of pumps 6 and the hydraulic pressures applied to motors 7 are applied to amplifiers 12 through lines 15 and 18 respectively. The plurality of pumps ensures satisfactory operation in the event of failure of one of them. Application to the maintenance of constant force or torque of a hydraulic motor or ram is referred to. Pumps 6 may supply a load directly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB75763A GB1068512A (en) | 1963-01-07 | 1963-01-07 | Improvements in or relating to a hydraulic supply system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB75763A GB1068512A (en) | 1963-01-07 | 1963-01-07 | Improvements in or relating to a hydraulic supply system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1068512A true GB1068512A (en) | 1967-05-10 |
Family
ID=9709997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB75763A Expired GB1068512A (en) | 1963-01-07 | 1963-01-07 | Improvements in or relating to a hydraulic supply system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1068512A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2130402A (en) * | 1982-11-05 | 1984-05-31 | Noisco Developments Limited | Electro-pneumatic system |
CN107288558A (en) * | 2017-08-16 | 2017-10-24 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Water mist dust-removing system |
-
1963
- 1963-01-07 GB GB75763A patent/GB1068512A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2130402A (en) * | 1982-11-05 | 1984-05-31 | Noisco Developments Limited | Electro-pneumatic system |
CN107288558A (en) * | 2017-08-16 | 2017-10-24 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Water mist dust-removing system |
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