JPS5737150A - Hydraulic pressure controller for closed circuit - Google Patents
Hydraulic pressure controller for closed circuitInfo
- Publication number
- JPS5737150A JPS5737150A JP11267680A JP11267680A JPS5737150A JP S5737150 A JPS5737150 A JP S5737150A JP 11267680 A JP11267680 A JP 11267680A JP 11267680 A JP11267680 A JP 11267680A JP S5737150 A JPS5737150 A JP S5737150A
- Authority
- JP
- Japan
- Prior art keywords
- closed circuit
- control valve
- controlling
- controller
- valve
- 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
- Control Of Fluid Gearings (AREA)
Abstract
PURPOSE: To provide a hydraulic pressure controller for a closed circuit including a reversible variable capacity pump and a reversible motor which controller can produce in the closed circuit a brake pressure for decelerating the motor by improving the structure including a spool type control valve of the controller.
CONSTITUTION: A reversible variable capacity pump 1 and a reversible motor 2 are connected to each other with a closed circuit 3, and the pump 1 is provided with a controlling cylinder 10 for controlling the quantity and direction of discharge therefrom. The controlling cyliner 10 is operated by a changing-over opration of a control valve 7 to supply a pilot pressure from an auxiliary pump 4 through a pilot circuit 8, and the control circuit 7 is operated by pistons 20, 21 in response to the difference of pressure between opposite sides A and B of the closed circuit 3. Left and right chambers 12, 13 of the controlling cylinder 10 are connected to a brake control valve 28 via the control valve 7 and are communicated to each other when the valve 28 is open. Chambers 18, 19 of the control valve 7 are connected to and communicated with a joy stick valve 37 or the like.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11267680A JPS5737150A (en) | 1980-08-18 | 1980-08-18 | Hydraulic pressure controller for closed circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11267680A JPS5737150A (en) | 1980-08-18 | 1980-08-18 | Hydraulic pressure controller for closed circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5737150A true JPS5737150A (en) | 1982-03-01 |
JPS6257857B2 JPS6257857B2 (en) | 1987-12-03 |
Family
ID=14592682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11267680A Granted JPS5737150A (en) | 1980-08-18 | 1980-08-18 | Hydraulic pressure controller for closed circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5737150A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57149653A (en) * | 1980-11-13 | 1982-09-16 | Hydromatik Gmbh | Control and adjusting device of fluid static pressure driving device for adjusting driving torque taking with output adjustment of added limiting power |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03279818A (en) * | 1990-03-28 | 1991-12-11 | Kubota Corp | Outdoor billing machine for track scale |
-
1980
- 1980-08-18 JP JP11267680A patent/JPS5737150A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57149653A (en) * | 1980-11-13 | 1982-09-16 | Hydromatik Gmbh | Control and adjusting device of fluid static pressure driving device for adjusting driving torque taking with output adjustment of added limiting power |
JPH0428949B2 (en) * | 1980-11-13 | 1992-05-15 | Hydromatik Gmbh |
Also Published As
Publication number | Publication date |
---|---|
JPS6257857B2 (en) | 1987-12-03 |
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