JPH0410535B2 - - Google Patents
Info
- Publication number
- JPH0410535B2 JPH0410535B2 JP59264598A JP26459884A JPH0410535B2 JP H0410535 B2 JPH0410535 B2 JP H0410535B2 JP 59264598 A JP59264598 A JP 59264598A JP 26459884 A JP26459884 A JP 26459884A JP H0410535 B2 JPH0410535 B2 JP H0410535B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- directional
- group
- valves
- passage
- 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
- 230000007935 neutral effect Effects 0.000 claims description 64
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 83
- 238000010586 diagram Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010291 electrical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59264598A JPS61142234A (ja) | 1984-12-17 | 1984-12-17 | 油圧ショベル等の建設機械の油圧回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59264598A JPS61142234A (ja) | 1984-12-17 | 1984-12-17 | 油圧ショベル等の建設機械の油圧回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61142234A JPS61142234A (ja) | 1986-06-30 |
| JPH0410535B2 true JPH0410535B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-02-25 |
Family
ID=17405531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59264598A Granted JPS61142234A (ja) | 1984-12-17 | 1984-12-17 | 油圧ショベル等の建設機械の油圧回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61142234A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2551543B2 (ja) * | 1988-06-17 | 1996-11-06 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
| JP2583127B2 (ja) * | 1989-06-30 | 1997-02-19 | 株式会社小松製作所 | 油圧式掘削機の走行・作業機操作装置 |
| US7614225B2 (en) | 2006-04-18 | 2009-11-10 | Volvo Construction Equipment Holding Sweden Ab | Straight traveling hydraulic circuit |
-
1984
- 1984-12-17 JP JP59264598A patent/JPS61142234A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61142234A (ja) | 1986-06-30 |