JPH0410536B2 - - Google Patents
Info
- Publication number
- JPH0410536B2 JPH0410536B2 JP59264599A JP26459984A JPH0410536B2 JP H0410536 B2 JPH0410536 B2 JP H0410536B2 JP 59264599 A JP59264599 A JP 59264599A JP 26459984 A JP26459984 A JP 26459984A JP H0410536 B2 JPH0410536 B2 JP H0410536B2
- Authority
- JP
- Japan
- Prior art keywords
- directional
- valve
- switching valve
- group
- valves
- 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 39
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 10
- 230000002265 prevention Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 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
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 |
---|---|---|---|
JP59264599A JPS61142235A (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 |
---|---|---|---|
JP59264599A JPS61142235A (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 |
---|---|
JPS61142235A JPS61142235A (ja) | 1986-06-30 |
JPH0410536B2 true JPH0410536B2 (uk) | 1992-02-25 |
Family
ID=17405546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59264599A Granted JPS61142235A (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) | JPS61142235A (uk) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6389403U (uk) * | 1986-12-02 | 1988-06-10 | ||
JPH0643259Y2 (ja) * | 1988-01-30 | 1994-11-09 | 川崎重工業株式会社 | 建設機械の油圧装置 |
JPH0649644Y2 (ja) * | 1988-02-18 | 1994-12-14 | 油谷重工株式会社 | クローラ式油圧ショベルの油圧回路 |
JPH0643260Y2 (ja) * | 1988-02-29 | 1994-11-09 | 川崎重工業株式会社 | 建設機械の油圧装置 |
JP2504571Y2 (ja) * | 1988-03-24 | 1996-07-10 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
JP2504572Y2 (ja) * | 1988-04-11 | 1996-07-10 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
JPH0649633Y2 (ja) * | 1988-06-07 | 1994-12-14 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
US5115835A (en) * | 1990-01-26 | 1992-05-26 | Zexel Corporation | Stacked type hydraulic control valve system |
JP3614121B2 (ja) * | 2001-08-22 | 2005-01-26 | コベルコ建機株式会社 | 建設機械の油圧装置 |
JP2006329248A (ja) * | 2005-05-24 | 2006-12-07 | Kobelco Contstruction Machinery Ltd | 作業機械の油圧供給装置 |
-
1984
- 1984-12-17 JP JP59264599A patent/JPS61142235A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61142235A (ja) | 1986-06-30 |
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