JPS6337216B2 - - Google Patents
Info
- Publication number
- JPS6337216B2 JPS6337216B2 JP55127126A JP12712680A JPS6337216B2 JP S6337216 B2 JPS6337216 B2 JP S6337216B2 JP 55127126 A JP55127126 A JP 55127126A JP 12712680 A JP12712680 A JP 12712680A JP S6337216 B2 JPS6337216 B2 JP S6337216B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- pump
- discharge capacity
- variable
- pumps
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 230000015654 memory Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing 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
- E02F9/2296—Systems with a variable displacement pump
-
- 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
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 |
---|---|---|---|
JP55127126A JPS5754635A (en) | 1980-09-16 | 1980-09-16 | Hydraulic circuit for civil engineering and construction equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55127126A JPS5754635A (en) | 1980-09-16 | 1980-09-16 | Hydraulic circuit for civil engineering and construction equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5754635A JPS5754635A (en) | 1982-04-01 |
JPS6337216B2 true JPS6337216B2 (de) | 1988-07-25 |
Family
ID=14952246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55127126A Granted JPS5754635A (en) | 1980-09-16 | 1980-09-16 | Hydraulic circuit for civil engineering and construction equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5754635A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021172927A1 (ko) * | 2020-02-27 | 2021-09-02 | 두산인프라코어 주식회사 | 건설 기계 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6231705A (ja) * | 1985-08-02 | 1987-02-10 | Komatsu Ltd | 液圧式建設機械の液圧回路装置 |
JPS62165003A (ja) * | 1986-01-10 | 1987-07-21 | Tech Res Assoc Openair Coal Min Mach | 油圧シヨベル等の油圧回路における作動油配分装置 |
JPS62225633A (ja) * | 1986-03-26 | 1987-10-03 | Tech Res Assoc Openair Coal Min Mach | 油圧シヨベル等の油圧回路における作動油配分装置 |
CN101929489B (zh) * | 2009-06-26 | 2013-05-29 | 安钛医疗设备股份有限公司 | 手术台双向油压系统 |
JP5797061B2 (ja) * | 2011-08-24 | 2015-10-21 | 株式会社小松製作所 | 油圧ショベル |
US9057389B2 (en) * | 2011-09-30 | 2015-06-16 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US20130098013A1 (en) * | 2011-10-21 | 2013-04-25 | Brad A. Edler | Closed-loop system having multi-circuit flow sharing |
US20130098458A1 (en) * | 2011-10-21 | 2013-04-25 | Michael L. Knussman | Hydraulic system having multiple closed-loop circuits |
US20130098011A1 (en) * | 2011-10-21 | 2013-04-25 | Michael L. Knussman | Hydraulic system having multiple closed-loop circuits |
US20130098463A1 (en) * | 2011-10-21 | 2013-04-25 | Jeffrey L. Kuehn | Meterless hydraulic system having sharing and combining functionality |
JP5961580B2 (ja) * | 2013-04-11 | 2016-08-02 | 日立建機株式会社 | 作業機械の駆動装置 |
JP5973979B2 (ja) * | 2013-11-21 | 2016-08-23 | 日立建機株式会社 | 作業機械の駆動装置 |
JP5974029B2 (ja) * | 2014-03-19 | 2016-08-23 | 日立建機株式会社 | 作業機械の駆動装置 |
JP6518318B2 (ja) * | 2015-04-03 | 2019-05-22 | 日立建機株式会社 | 作業機械の油圧制御装置 |
JP6474702B2 (ja) * | 2015-09-07 | 2019-02-27 | 日立建機株式会社 | 作業機械の駆動装置 |
JP2024002332A (ja) * | 2022-06-23 | 2024-01-11 | 川崎重工業株式会社 | 液圧駆動装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5473402A (en) * | 1977-11-22 | 1979-06-12 | Hitachi Construction Machinery | Hydraulic circuit for hydraulic shovel |
-
1980
- 1980-09-16 JP JP55127126A patent/JPS5754635A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5473402A (en) * | 1977-11-22 | 1979-06-12 | Hitachi Construction Machinery | Hydraulic circuit for hydraulic shovel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021172927A1 (ko) * | 2020-02-27 | 2021-09-02 | 두산인프라코어 주식회사 | 건설 기계 |
Also Published As
Publication number | Publication date |
---|---|
JPS5754635A (en) | 1982-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6337216B2 (de) | ||
US5267440A (en) | Hydraulic control system for construction machine | |
US4369625A (en) | Drive system for construction machinery and method of controlling hydraulic circuit means thereof | |
US4768339A (en) | Hydraulic drive system | |
JPS6342122B2 (de) | ||
JPS6319724B2 (de) | ||
JPS6225882B2 (de) | ||
JPH10231805A (ja) | 油圧パイロット回路 | |
JP2020139574A (ja) | 建設機械 | |
GB2045360A (en) | Drive system for construction machinery | |
JPH08219107A (ja) | 油圧機械の油圧再生装置 | |
JP4724945B2 (ja) | 油圧回路 | |
JP2740172B2 (ja) | 油圧駆動装置 | |
JPH0783084A (ja) | 油圧建設機械 | |
JP3205910B2 (ja) | 単一可変容量ポンプによる複数アクチュエータの作動制御装置 | |
JPS5939601B2 (ja) | 片ロッドシリンダの駆動油圧回路 | |
JP3047078B2 (ja) | ロードセンシングシステムにおけるエンジンの自動調速装置 | |
JP2002317471A (ja) | 油圧ショベルの油圧制御回路 | |
JPS6070234A (ja) | パワ−ショベル等の建設機械 | |
WO2021039926A1 (ja) | 建設機械 | |
WO2023074809A1 (ja) | ショベル | |
JPH06249208A (ja) | 建設機械の油圧駆動装置 | |
JP2866177B2 (ja) | 作業車両の油圧駆動装置 | |
JPH03267534A (ja) | 建設機械の原動機制御装置 | |
JP3182642B2 (ja) | 走行速度切換制御装置 |