JPS57116908A - Fluid equipment - Google Patents
Fluid equipmentInfo
- Publication number
- JPS57116908A JPS57116908A JP17331481A JP17331481A JPS57116908A JP S57116908 A JPS57116908 A JP S57116908A JP 17331481 A JP17331481 A JP 17331481A JP 17331481 A JP17331481 A JP 17331481A JP S57116908 A JPS57116908 A JP S57116908A
- Authority
- JP
- Japan
- Prior art keywords
- discharging
- control valve
- rate
- pump
- discharging rate
- 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 decrease power loss in such a way that in a contrivance to control discharging rate from a discharging rate variable pump by means of a pressure control valve, discharging rate and discharging pressure in the pump is made controllable in response to its demand without need of inutile leak flow rate.
CONSTITUTION: A discharging rate variable pump 1 is controlled with its discharging rate in such a way that a swash plate 2, etc. is displaced by means of a cylinder 4. At the same time as discharging fluid by the pump 1 is fed from a main flow circuit 8 via a shunt control part Z of a selective type pressure control valve 43 and a flow direction control valve 10 to an actuator 50, when a throttle decompression control part Y of said valve 43 is selected, it is integrated so that pressurized fluid is fed through flow direction control valves 10X, 10Y to actuators 50x, 50y. Besides, it provides a triple port type pressure control valve 30 to respond to the differential pressure in the front and in the rear of a flow rate adjusting variable orifice 19. And, said cylinder 4 is made to be able to be changed over and connected either from a primary port 24 to the main flow circuit 8 or from a port 26 to a reservoir.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56173314A JPS5922082B2 (en) | 1981-10-28 | 1981-10-28 | fluid equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56173314A JPS5922082B2 (en) | 1981-10-28 | 1981-10-28 | fluid equipment |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12588674A Division JPS5151682A (en) | 1974-10-29 | 1974-10-29 | RYUTAISOCHI |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57116908A true JPS57116908A (en) | 1982-07-21 |
JPS5922082B2 JPS5922082B2 (en) | 1984-05-24 |
Family
ID=15958141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56173314A Expired JPS5922082B2 (en) | 1981-10-28 | 1981-10-28 | fluid equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5922082B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59151601A (en) * | 1983-02-18 | 1984-08-30 | Sumiyoshi Jukogyo Kk | Load sensing type parallel hydraulic control circuit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS497676A (en) * | 1972-05-22 | 1974-01-23 | ||
JPS4912424A (en) * | 1972-04-06 | 1974-02-02 | ||
JPS4967069A (en) * | 1972-11-04 | 1974-06-28 |
-
1981
- 1981-10-28 JP JP56173314A patent/JPS5922082B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912424A (en) * | 1972-04-06 | 1974-02-02 | ||
JPS497676A (en) * | 1972-05-22 | 1974-01-23 | ||
JPS4967069A (en) * | 1972-11-04 | 1974-06-28 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59151601A (en) * | 1983-02-18 | 1984-08-30 | Sumiyoshi Jukogyo Kk | Load sensing type parallel hydraulic control circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS5922082B2 (en) | 1984-05-24 |
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