JPS57184136A - Oil-pressure circuit for oil-pressure working machine - Google Patents
Oil-pressure circuit for oil-pressure working machineInfo
- Publication number
- JPS57184136A JPS57184136A JP56066901A JP6690181A JPS57184136A JP S57184136 A JPS57184136 A JP S57184136A JP 56066901 A JP56066901 A JP 56066901A JP 6690181 A JP6690181 A JP 6690181A JP S57184136 A JPS57184136 A JP S57184136A
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- oil
- valve
- running
- pressure
- 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.)
- Granted
Links
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 |
---|---|---|---|
JP56066901A JPS57184136A (en) | 1981-05-06 | 1981-05-06 | Oil-pressure circuit for oil-pressure working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56066901A JPS57184136A (en) | 1981-05-06 | 1981-05-06 | Oil-pressure circuit for oil-pressure working machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57184136A true JPS57184136A (en) | 1982-11-12 |
JPH0128177B2 JPH0128177B2 (ko) | 1989-06-01 |
Family
ID=13329298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56066901A Granted JPS57184136A (en) | 1981-05-06 | 1981-05-06 | Oil-pressure circuit for oil-pressure working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57184136A (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6799424B2 (en) | 2001-11-09 | 2004-10-05 | Nabco, Ltd. | Hydraulic circuit |
KR100656046B1 (ko) * | 2002-11-25 | 2006-12-08 | 두산인프라코어 주식회사 | 소형 굴삭기의 암속도 제어장치 |
KR101088753B1 (ko) | 2008-07-02 | 2011-12-01 | 볼보 컨스트럭션 이큅먼트 에이비 | 굴삭기용 유압구동 시스템 |
WO2013051740A1 (ko) * | 2011-10-07 | 2013-04-11 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계용 작업장치 구동 제어시스템 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5519302A (en) * | 1978-07-10 | 1980-02-12 | Hitachi Constr Mach Co Ltd | Hydraulic pressure line in hydraulic shovel |
JPS5614607A (en) * | 1979-07-13 | 1981-02-12 | Hitachi Constr Mach Co Ltd | Hydraulic circuit for hydraulic shovel |
-
1981
- 1981-05-06 JP JP56066901A patent/JPS57184136A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5519302A (en) * | 1978-07-10 | 1980-02-12 | Hitachi Constr Mach Co Ltd | Hydraulic pressure line in hydraulic shovel |
JPS5614607A (en) * | 1979-07-13 | 1981-02-12 | Hitachi Constr Mach Co Ltd | Hydraulic circuit for hydraulic shovel |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6799424B2 (en) | 2001-11-09 | 2004-10-05 | Nabco, Ltd. | Hydraulic circuit |
KR100656046B1 (ko) * | 2002-11-25 | 2006-12-08 | 두산인프라코어 주식회사 | 소형 굴삭기의 암속도 제어장치 |
KR101088753B1 (ko) | 2008-07-02 | 2011-12-01 | 볼보 컨스트럭션 이큅먼트 에이비 | 굴삭기용 유압구동 시스템 |
WO2013051740A1 (ko) * | 2011-10-07 | 2013-04-11 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설기계용 작업장치 구동 제어시스템 |
Also Published As
Publication number | Publication date |
---|---|
JPH0128177B2 (ko) | 1989-06-01 |
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