DE3861194D1 - HYDRAULIC SYSTEM. - Google Patents
HYDRAULIC SYSTEM.Info
- Publication number
- DE3861194D1 DE3861194D1 DE8888102046T DE3861194T DE3861194D1 DE 3861194 D1 DE3861194 D1 DE 3861194D1 DE 8888102046 T DE8888102046 T DE 8888102046T DE 3861194 T DE3861194 T DE 3861194T DE 3861194 D1 DE3861194 D1 DE 3861194D1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic system
- hydraulic
- 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 - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
- F15B11/0445—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out" with counterbalance valves, e.g. to prevent overrunning or for braking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1631887A | 1987-02-19 | 1987-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3861194D1 true DE3861194D1 (en) | 1991-01-17 |
Family
ID=21776536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888102046T Expired - Fee Related DE3861194D1 (en) | 1987-02-19 | 1988-02-12 | HYDRAULIC SYSTEM. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0279362B1 (en) |
JP (1) | JP2604399B2 (en) |
CA (1) | CA1274748A (en) |
DE (1) | DE3861194D1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5209063A (en) * | 1989-05-24 | 1993-05-11 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic circuit utilizing a compensator pressure selecting value |
DE69025462T2 (en) * | 1989-05-24 | 1996-09-26 | Kabushiki Kaisha Komatsu Seisakusho, Tokio/Tokyo | HYDRAULIC SWITCHING DEVICE |
US6715402B2 (en) * | 2002-02-26 | 2004-04-06 | Husco International, Inc. | Hydraulic control circuit for operating a split actuator mechanical mechanism |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2912131A (en) * | 1957-10-01 | 1959-11-10 | Demag Baggerfabrik Gmbh | Hydraulically operated machines |
FR1400491A (en) * | 1964-04-14 | 1965-05-28 | Auxitra | Hydraulic distribution system for excavator |
GB1035141A (en) * | 1964-05-07 | 1966-07-06 | Priestman Brothers | Improvements relating to civil engineering machines |
LU52175A1 (en) * | 1965-10-21 | 1966-12-19 | ||
US3960284A (en) * | 1972-10-02 | 1976-06-01 | American Hoist & Derrick Company | Hydraulic backhoe circuitry |
JPS6244849Y2 (en) * | 1981-02-02 | 1987-11-28 | ||
JPS5897030U (en) * | 1981-12-24 | 1983-07-01 | 株式会社小松製作所 | Hydraulic circuit for driving hydraulically driven vehicles |
DE3525823A1 (en) * | 1985-07-19 | 1987-01-29 | Schmitz Soehne Gmbh Maschf | Path-dependent synchronous pressure control for double-acting presses, in particular laminating presses |
-
1988
- 1988-02-02 CA CA000557948A patent/CA1274748A/en not_active Expired - Fee Related
- 1988-02-12 EP EP19880102046 patent/EP0279362B1/en not_active Expired
- 1988-02-12 DE DE8888102046T patent/DE3861194D1/en not_active Expired - Fee Related
- 1988-02-19 JP JP63037318A patent/JP2604399B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2604399B2 (en) | 1997-04-30 |
EP0279362A1 (en) | 1988-08-24 |
CA1274748A (en) | 1990-10-02 |
EP0279362B1 (en) | 1990-12-05 |
JPS63215467A (en) | 1988-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO874761L (en) | HYDRAULIC CEMENT-SLURRY. | |
NO912941D0 (en) | LINEAERMOTOR-PROGRESS SYSTEM. | |
NO895294D0 (en) | HYDRAULIC SYSTEM. | |
FI870495A (en) | HYDRAULIC BROMSAR. | |
DE3764824D1 (en) | HYDRAULIC DRIVE SYSTEM. | |
DE3876518D1 (en) | HYDRAULIC DRIVE SYSTEM. | |
FI900093A (en) | SYSTEM FOER TILLSLUTBART LASTRUM AV CONTAINER-TYP. | |
DE3862500D1 (en) | HYDRAULIC CONNECTOR. | |
DE69020415D1 (en) | Electro-hydraulic system. | |
DE3773216D1 (en) | ANTI-BLOCKED BRAKE SYSTEM. | |
DE3785792D1 (en) | HYDRAULIC CONTROL SYSTEM. | |
DE3883690D1 (en) | Hydraulic drive system. | |
FI884151A (en) | SYSTEM FOER INSTAELLNING AV EN ROTATIONSTRYCKMASKINS DRIFTSPARAMETRAR. | |
DE68909946D1 (en) | HYDRAULIC SYSTEM. | |
DE3781522D1 (en) | HYDRAULIC DRIVE SYSTEM. | |
DE3862025D1 (en) | PARKING SYSTEM. | |
NO885035D0 (en) | HYDRAULIC CONTROL BLOCK. | |
DE3868661D1 (en) | HYDRAULIC DRIVE SYSTEM. | |
DE3880586D1 (en) | HYDRAULIC CONTROL SYSTEM. | |
FI884661A (en) | SYSTEM FOER EN BEARBETNINGSMASKINS LAOSHYLSSPINDEL. | |
DE3861194D1 (en) | HYDRAULIC SYSTEM. | |
FI871786A0 (en) | HYDRAULIC SLAGMASKINER. | |
DE3850979D1 (en) | Single system illustration. | |
NO891839D0 (en) | TRYKKFOELER SYSTEM. | |
NO881621D0 (en) | INTERFACE SYSTEM. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |