DE3876661D1 - CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. - Google Patents
CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE.Info
- Publication number
- DE3876661D1 DE3876661D1 DE8888104661T DE3876661T DE3876661D1 DE 3876661 D1 DE3876661 D1 DE 3876661D1 DE 8888104661 T DE8888104661 T DE 8888104661T DE 3876661 T DE3876661 T DE 3876661T DE 3876661 D1 DE3876661 D1 DE 3876661D1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- ist
- regulator
- pressure line
- working pressure
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The regulation system is used to ensure equal loading of the pumps (1) using a respective setting device (6, 7) with a regulator (3, 4) controlling the pump flow vol.. Each regulator (3, 4) is associated with a control unit (5) providing a control signal (X ist, X ist1) dependent on the flow vol. adjustment. The control signal is used as the reference signal (XsoH) for comparison with the actual flow vol. (X ist 1, X ist) for the other regulator (4, 3). Pref. each setting device (6, 7) is used a piston/cylinder device. Each associated control device (5) comprises a pressure regulating valve, e.g. a pressure limiting valve (17), a pressure reduction valve or a variable throttle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8888104661T DE3876661D1 (en) | 1987-04-02 | 1988-03-23 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873711053 DE3711053A1 (en) | 1987-04-02 | 1987-04-02 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE |
DE8888104661T DE3876661D1 (en) | 1987-04-02 | 1988-03-23 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3876661D1 true DE3876661D1 (en) | 1993-01-28 |
Family
ID=6324677
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873711053 Granted DE3711053A1 (en) | 1987-04-02 | 1987-04-02 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE |
DE8888104661T Expired - Lifetime DE3876661D1 (en) | 1987-04-02 | 1988-03-23 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES RELATED TO A COMMON WORKING PRESSURE LINE. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873711053 Granted DE3711053A1 (en) | 1987-04-02 | 1987-04-02 | CONTROL DEVICE FOR AT LEAST TWO HYDROSTATIC MACHINES CONNECTED TO A COMMON WORKING PRESSURE LINE |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0284988B1 (en) |
DE (2) | DE3711053A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4025638C1 (en) * | 1990-08-13 | 1991-12-05 | Brueninghaus Hydraulik Gmbh, 7240 Horb, De | |
DE4118869C2 (en) * | 1991-06-07 | 1995-06-29 | Hydromatik Gmbh | Control device for controlling the displacement volume of several hydrostatic machines |
DE19626793C1 (en) * | 1996-07-03 | 1997-06-26 | Brueninghaus Hydromatik Gmbh | Hydraulic equipment for parallel regulation of hydrostatic displacement pumps |
DE102015000869B4 (en) * | 2015-01-23 | 2019-10-24 | Dürr Systems Ag | Pump arrangement and corresponding operating method |
AT524891B1 (en) * | 2021-03-29 | 2023-01-15 | Engel Austria Gmbh | Hydraulic drive device for a shaping machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1056655A (en) * | 1964-11-16 | 1967-01-25 | Ifield & Sons Pty Ltd R J | Torque control means for variable displacement hydraulic pumps |
DE1921298B2 (en) * | 1969-04-25 | 1973-08-23 | Hydromatik Gmbh, 7900 Ulm | DEVICE FOR REGULATING THE FLOW RATE OF ADJUSTABLE AXIAL PISTON PUMPS |
US4055046A (en) * | 1976-12-22 | 1977-10-25 | Caterpillar Tractor Co. | Control system having override for fluid operated work elements |
CA1104033A (en) * | 1977-02-24 | 1981-06-30 | Commercial Shearing, Inc. | Pressure and flow compensated control system with constant torque and viscosity sensing over-ride |
DE8335902U1 (en) * | 1983-12-14 | 1987-06-04 | Brueninghaus Hydraulik Gmbh, 7240 Horb | Torque control device for an adjustable hydraulic pump |
-
1987
- 1987-04-02 DE DE19873711053 patent/DE3711053A1/en active Granted
-
1988
- 1988-03-23 EP EP88104661A patent/EP0284988B1/en not_active Expired - Lifetime
- 1988-03-23 DE DE8888104661T patent/DE3876661D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3711053C2 (en) | 1992-01-30 |
DE3711053A1 (en) | 1988-10-20 |
EP0284988B1 (en) | 1992-12-16 |
EP0284988A2 (en) | 1988-10-05 |
EP0284988A3 (en) | 1989-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |