JPS6362608B2 - - Google Patents
Info
- Publication number
- JPS6362608B2 JPS6362608B2 JP56000770A JP77081A JPS6362608B2 JP S6362608 B2 JPS6362608 B2 JP S6362608B2 JP 56000770 A JP56000770 A JP 56000770A JP 77081 A JP77081 A JP 77081A JP S6362608 B2 JPS6362608 B2 JP S6362608B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hydraulic
- operating
- servo valve
- directional control
- 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
Links
- 238000010276 construction Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid 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
- E02F9/2278—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 |
---|---|---|---|
JP77081A JPS57116840A (en) | 1981-01-08 | 1981-01-08 | Operating device for civil engineering work and construction machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP77081A JPS57116840A (en) | 1981-01-08 | 1981-01-08 | Operating device for civil engineering work and construction machinery |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57116840A JPS57116840A (en) | 1982-07-21 |
JPS6362608B2 true JPS6362608B2 (US20050271598A1-20051208-C00001.png) | 1988-12-02 |
Family
ID=11482923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP77081A Granted JPS57116840A (en) | 1981-01-08 | 1981-01-08 | Operating device for civil engineering work and construction machinery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57116840A (US20050271598A1-20051208-C00001.png) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612567U (ja) * | 1984-06-07 | 1986-01-09 | ハンド−ザ−工業株式会社 | 土工用車輌における油圧ポンプの合流装置 |
JPS612568U (ja) * | 1984-06-12 | 1986-01-09 | ハンド−ザ−工業株式会社 | 土工用車輌における油圧ポンプの合流装置 |
JP6377520B2 (ja) * | 2014-12-26 | 2018-08-22 | 株式会社クボタ | 作業機の油圧システム及びこの油圧システムを備えた作業機 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5513254B2 (US20050271598A1-20051208-C00001.png) * | 1976-12-29 | 1980-04-08 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54148004U (US20050271598A1-20051208-C00001.png) * | 1978-04-05 | 1979-10-15 | ||
JPS5513254U (US20050271598A1-20051208-C00001.png) * | 1978-07-10 | 1980-01-28 |
-
1981
- 1981-01-08 JP JP77081A patent/JPS57116840A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5513254B2 (US20050271598A1-20051208-C00001.png) * | 1976-12-29 | 1980-04-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS57116840A (en) | 1982-07-21 |