JPS5550215Y2 - - Google Patents
Info
- Publication number
- JPS5550215Y2 JPS5550215Y2 JP1059972U JP1059972U JPS5550215Y2 JP S5550215 Y2 JPS5550215 Y2 JP S5550215Y2 JP 1059972 U JP1059972 U JP 1059972U JP 1059972 U JP1059972 U JP 1059972U JP S5550215 Y2 JPS5550215 Y2 JP S5550215Y2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- 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
- F15B11/17—Servomotor systems without provision for follow-up action ; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/30505—Non-return valves, i.e. check 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
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
-
- 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
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE794481D BE794481A (fr) | 1972-01-24 | Pelle mecanique pour travaux de terrassement | |
| JP1059972U JPS5550215Y2 (cg-RX-API-DMAC10.html) | 1972-01-24 | 1972-01-24 | |
| DE19732303200 DE2303200A1 (de) | 1972-01-24 | 1973-01-23 | Erdbaufahrzeug, insbesondere bagger |
| FR7302515A FR2169212B1 (cg-RX-API-DMAC10.html) | 1972-01-24 | 1973-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1059972U JPS5550215Y2 (cg-RX-API-DMAC10.html) | 1972-01-24 | 1972-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4887804U JPS4887804U (cg-RX-API-DMAC10.html) | 1973-10-24 |
| JPS5550215Y2 true JPS5550215Y2 (cg-RX-API-DMAC10.html) | 1980-11-21 |
Family
ID=11754693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1059972U Expired JPS5550215Y2 (cg-RX-API-DMAC10.html) | 1972-01-24 | 1972-01-24 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5550215Y2 (cg-RX-API-DMAC10.html) |
| BE (1) | BE794481A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2303200A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2169212B1 (cg-RX-API-DMAC10.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810960U (ja) * | 1981-07-10 | 1983-01-24 | 日立建機株式会社 | 油圧ショベルの油圧回路 |
| FR2581404B1 (fr) * | 1985-05-03 | 1987-07-10 | Poncin Gilles | Engin de terrassement tous terrains |
| DE3516429A1 (de) * | 1985-05-08 | 1986-11-13 | Rudolf Hausherr & Söhne GmbH & Co KG, 4322 Sprockhövel | Schaltungsanordnung fuer die hydraulische beaufschlagung der aggregate eines laders |
| JP3497947B2 (ja) * | 1996-06-11 | 2004-02-16 | 日立建機株式会社 | 油圧駆動装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576277A (en) * | 1969-06-19 | 1971-04-27 | Don Curl | Sterile scrub apparatus with selection of washing liquid, and method |
| US3601621A (en) * | 1969-08-18 | 1971-08-24 | Edwin E Ritchie | Proximity control apparatus |
-
0
- BE BE794481D patent/BE794481A/xx not_active IP Right Cessation
-
1972
- 1972-01-24 JP JP1059972U patent/JPS5550215Y2/ja not_active Expired
-
1973
- 1973-01-23 DE DE19732303200 patent/DE2303200A1/de active Pending
- 1973-01-24 FR FR7302515A patent/FR2169212B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2303200A1 (de) | 1973-08-09 |
| FR2169212B1 (cg-RX-API-DMAC10.html) | 1976-04-30 |
| BE794481A (fr) | 1973-05-16 |
| FR2169212A1 (cg-RX-API-DMAC10.html) | 1973-09-07 |
| JPS4887804U (cg-RX-API-DMAC10.html) | 1973-10-24 |