JPH0213099B2 - - Google Patents
Info
- Publication number
- JPH0213099B2 JPH0213099B2 JP57037167A JP3716782A JPH0213099B2 JP H0213099 B2 JPH0213099 B2 JP H0213099B2 JP 57037167 A JP57037167 A JP 57037167A JP 3716782 A JP3716782 A JP 3716782A JP H0213099 B2 JPH0213099 B2 JP H0213099B2
- Authority
- JP
- Japan
- Prior art keywords
- port
- boom
- cylinder
- work port
- arm
- 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 3
- 230000008602 contraction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation 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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
Landscapes
- Engineering & Computer Science (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 |
---|---|---|---|
JP57037167A JPS58156642A (ja) | 1982-03-11 | 1982-03-11 | 掘削機の油圧回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57037167A JPS58156642A (ja) | 1982-03-11 | 1982-03-11 | 掘削機の油圧回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58156642A JPS58156642A (ja) | 1983-09-17 |
JPH0213099B2 true JPH0213099B2 (US20100056889A1-20100304-C00004.png) | 1990-04-03 |
Family
ID=12490036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57037167A Granted JPS58156642A (ja) | 1982-03-11 | 1982-03-11 | 掘削機の油圧回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58156642A (US20100056889A1-20100304-C00004.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08231197A (ja) * | 1995-02-23 | 1996-09-10 | Meikikou:Kk | テーブルリフト装置のメンテナンス装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5066908A (US20100056889A1-20100304-C00004.png) * | 1973-10-23 | 1975-06-05 | ||
JPS5612102B2 (US20100056889A1-20100304-C00004.png) * | 1976-07-07 | 1981-03-18 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916563Y2 (ja) * | 1979-07-09 | 1984-05-15 | 日立建機株式会社 | 閉回路のフラッシング回路 |
-
1982
- 1982-03-11 JP JP57037167A patent/JPS58156642A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5066908A (US20100056889A1-20100304-C00004.png) * | 1973-10-23 | 1975-06-05 | ||
JPS5612102B2 (US20100056889A1-20100304-C00004.png) * | 1976-07-07 | 1981-03-18 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08231197A (ja) * | 1995-02-23 | 1996-09-10 | Meikikou:Kk | テーブルリフト装置のメンテナンス装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS58156642A (ja) | 1983-09-17 |