JPS57116902A - Fluid equipment - Google Patents
Fluid equipmentInfo
- Publication number
- JPS57116902A JPS57116902A JP17190681A JP17190681A JPS57116902A JP S57116902 A JPS57116902 A JP S57116902A JP 17190681 A JP17190681 A JP 17190681A JP 17190681 A JP17190681 A JP 17190681A JP S57116902 A JPS57116902 A JP S57116902A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- pressure
- discharging
- discharging rate
- orifice
- 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, a flow rate adjustment variable orifice is provided on the return circuit from an actuator so as to control the differential pressure in its front and rear almost stably.
CONSTITUTION: A discharging rate variable pump 1 is controlled with its discharging rate in such a way that a swash plate 2, etc. is dislaced by a cylinder 4. While discharging fluid by means of the pump 1 is fed from a main flow circuit 8 via a flow direction control valve 10 to an actuator 50, it is constituted so that it may be circulated through a triple port type pressure control valve 30, etc. back to a reservoir 7a. A flow rate adjusting variable orifice 19 is provided on a flow direction control valve 10 so as to be connected to a fluid return circuit 300. Besides, the pressure control valve 30 has a cylinder 4 connected through a line 29 to its secondary port 25, and it is cnstituted so that pressure in the front and in the rear of said orifice may be respectively transferred to one end of its spool 31 and to a back pressure chamber 32 at the other end.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17190681A JPS6021241B2 (en) | 1981-10-26 | 1981-10-26 | fluid equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17190681A JPS6021241B2 (en) | 1981-10-26 | 1981-10-26 | fluid equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12588574A Division JPS5151681A (en) | 1974-10-29 | 1974-10-29 | RYUTAISOCHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57116902A true JPS57116902A (en) | 1982-07-21 |
| JPS6021241B2 JPS6021241B2 (en) | 1985-05-27 |
Family
ID=15932012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17190681A Expired JPS6021241B2 (en) | 1981-10-26 | 1981-10-26 | fluid equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021241B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60263705A (en) * | 1984-06-02 | 1985-12-27 | ダンフオス・エー・エス | Pressure feeder for hydraulic apparatus |
| JPS61252902A (en) * | 1985-05-02 | 1986-11-10 | ダンフオス アクチエセルスカベト | Controller for at least one hydraulic operating actuator |
-
1981
- 1981-10-26 JP JP17190681A patent/JPS6021241B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60263705A (en) * | 1984-06-02 | 1985-12-27 | ダンフオス・エー・エス | Pressure feeder for hydraulic apparatus |
| JPH0448968B2 (en) * | 1984-06-02 | 1992-08-10 | Danfoss As | |
| JPS61252902A (en) * | 1985-05-02 | 1986-11-10 | ダンフオス アクチエセルスカベト | Controller for at least one hydraulic operating actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6021241B2 (en) | 1985-05-27 |
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