JPH0372769B2 - - Google Patents
Info
- Publication number
- JPH0372769B2 JPH0372769B2 JP60007077A JP707785A JPH0372769B2 JP H0372769 B2 JPH0372769 B2 JP H0372769B2 JP 60007077 A JP60007077 A JP 60007077A JP 707785 A JP707785 A JP 707785A JP H0372769 B2 JPH0372769 B2 JP H0372769B2
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- valve
- pilot
- oil
- travel motor
- 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 9
- 238000010276 construction Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering 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
- E02F9/2221—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
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 |
---|---|---|---|
JP60007077A JPS61165429A (ja) | 1985-01-17 | 1985-01-17 | 建設機械の油圧回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60007077A JPS61165429A (ja) | 1985-01-17 | 1985-01-17 | 建設機械の油圧回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61165429A JPS61165429A (ja) | 1986-07-26 |
JPH0372769B2 true JPH0372769B2 (US07709020-20100504-C00041.png) | 1991-11-19 |
Family
ID=11656017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60007077A Granted JPS61165429A (ja) | 1985-01-17 | 1985-01-17 | 建設機械の油圧回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61165429A (US07709020-20100504-C00041.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0746202Y2 (ja) * | 1993-03-04 | 1995-10-25 | 薫 大谷 | 額縁における枠材の連結装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5115835A (en) * | 1990-01-26 | 1992-05-26 | Zexel Corporation | Stacked type hydraulic control valve system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57197333A (en) * | 1981-05-27 | 1982-12-03 | Hitachi Constr Mach Co Ltd | Oil-pressure circuit for oil-pressure shovel |
JPS604654B2 (ja) * | 1977-04-07 | 1985-02-05 | 株式会社東芝 | 直流回路付電力変換装置の短絡保護装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604654U (ja) * | 1983-06-23 | 1985-01-14 | 株式会社小松製作所 | パワ−シヨベルの油圧回路装置 |
-
1985
- 1985-01-17 JP JP60007077A patent/JPS61165429A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604654B2 (ja) * | 1977-04-07 | 1985-02-05 | 株式会社東芝 | 直流回路付電力変換装置の短絡保護装置 |
JPS57197333A (en) * | 1981-05-27 | 1982-12-03 | Hitachi Constr Mach Co Ltd | Oil-pressure circuit for oil-pressure shovel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0746202Y2 (ja) * | 1993-03-04 | 1995-10-25 | 薫 大谷 | 額縁における枠材の連結装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS61165429A (ja) | 1986-07-26 |