JPH0464377B2 - - Google Patents
Info
- Publication number
- JPH0464377B2 JPH0464377B2 JP61150989A JP15098986A JPH0464377B2 JP H0464377 B2 JPH0464377 B2 JP H0464377B2 JP 61150989 A JP61150989 A JP 61150989A JP 15098986 A JP15098986 A JP 15098986A JP H0464377 B2 JPH0464377 B2 JP H0464377B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valves
- pump
- actuators
- oil
- 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
- 238000010276 construction Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 81
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61150989A JPS637424A (ja) | 1986-06-26 | 1986-06-26 | 建設機械の油圧回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61150989A JPS637424A (ja) | 1986-06-26 | 1986-06-26 | 建設機械の油圧回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS637424A JPS637424A (ja) | 1988-01-13 |
| JPH0464377B2 true JPH0464377B2 (US20030199744A1-20031023-C00003.png) | 1992-10-14 |
Family
ID=15508852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61150989A Granted JPS637424A (ja) | 1986-06-26 | 1986-06-26 | 建設機械の油圧回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS637424A (US20030199744A1-20031023-C00003.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0452603U (US20030199744A1-20031023-C00003.png) * | 1990-09-13 | 1992-05-06 | ||
| JP5356159B2 (ja) * | 2009-09-02 | 2013-12-04 | 日立建機株式会社 | 油圧作業機の油圧駆動装置 |
-
1986
- 1986-06-26 JP JP61150989A patent/JPS637424A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS637424A (ja) | 1988-01-13 |
