IT1289120B1 - Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terra - Google Patents
Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terraInfo
- Publication number
- IT1289120B1 IT1289120B1 IT96VR000063A ITVR960063A IT1289120B1 IT 1289120 B1 IT1289120 B1 IT 1289120B1 IT 96VR000063 A IT96VR000063 A IT 96VR000063A IT VR960063 A ITVR960063 A IT VR960063A IT 1289120 B1 IT1289120 B1 IT 1289120B1
- Authority
- IT
- Italy
- Prior art keywords
- earth
- control circuit
- hydraulic control
- working parts
- moving machines
- Prior art date
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
- E02F9/2282—Systems using center bypass type changeover valves
-
- 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)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Pipeline Systems (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96VR000063A IT1289120B1 (it) | 1996-07-04 | 1996-07-04 | Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terra |
US08/806,235 US5829251A (en) | 1996-07-04 | 1997-02-24 | Hydraulic control circuit for working components, in particular in earth-moving machines |
CA2198405A CA2198405A1 (en) | 1996-07-04 | 1997-02-25 | Hydraulic control circuit for working components, in particular in earth-moving machines |
EP97830081A EP0816577A1 (en) | 1996-07-04 | 1997-02-25 | Hydraulic control circuit for working components, in particular in earth-moving machines |
JP9068054A JPH1037908A (ja) | 1996-07-04 | 1997-03-21 | 油圧制御回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96VR000063A IT1289120B1 (it) | 1996-07-04 | 1996-07-04 | Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terra |
Publications (2)
Publication Number | Publication Date |
---|---|
ITVR960063A1 ITVR960063A1 (it) | 1998-01-04 |
IT1289120B1 true IT1289120B1 (it) | 1998-09-25 |
Family
ID=11428224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT96VR000063A IT1289120B1 (it) | 1996-07-04 | 1996-07-04 | Circuito idraulico di comando per organi di lavoro,in particolare in macchine movimento terra |
Country Status (5)
Country | Link |
---|---|
US (1) | US5829251A (it) |
EP (1) | EP0816577A1 (it) |
JP (1) | JPH1037908A (it) |
CA (1) | CA2198405A1 (it) |
IT (1) | IT1289120B1 (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7481052B2 (en) * | 2006-04-17 | 2009-01-27 | Clark Equipment Company | Fluid circuit with multiple flows from a series valve |
CN101768991A (zh) * | 2008-12-31 | 2010-07-07 | 卡特彼勒公司 | 转向操作系统和方法及具有该转向操作系统的工作机械 |
US9410560B2 (en) | 2012-06-01 | 2016-08-09 | Clark Equipment Company | Control valve assembly |
CN106895262B (zh) * | 2017-02-24 | 2018-08-31 | 中国石油天然气集团公司 | 一种用于成品油装车的流量调节装置及流量调节方法 |
CN106641732B (zh) * | 2017-02-24 | 2018-08-31 | 中国石油天然气集团公司 | 一种成品油装车计量调节装置 |
CN110195821B (zh) * | 2019-05-09 | 2021-05-07 | 中国飞机强度研究所 | 一种液压子站与电磁阀控制装置 |
CN111409852B (zh) * | 2020-04-12 | 2023-06-20 | 中国飞机强度研究所 | 一种用于飞机结构强度试验的直流稳压电源装置 |
CN113529844B (zh) * | 2021-07-08 | 2022-11-11 | 柳州柳工挖掘机有限公司 | 负流量挖掘机直行控制系统和方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4454A (en) * | 1846-04-11 | Light-house lamp | ||
US3922855A (en) * | 1971-12-13 | 1975-12-02 | Caterpillar Tractor Co | Hydraulic circuitry for an excavator |
FR2250908B3 (it) * | 1973-11-14 | 1977-08-12 | Massey Ferguson Services Nv | |
US4170124A (en) * | 1975-10-09 | 1979-10-09 | Dreis & Krump Manufacturing Company | Hydraulic control system for press brakes and the like |
US4024710A (en) * | 1976-03-25 | 1977-05-24 | Koehring Company | Load sensing hydraulic circuit having power matching means |
JPS57197336A (en) * | 1981-05-29 | 1982-12-03 | Komatsu Ltd | Oil-pressure circuit for turning excavator |
JPS57205638A (en) * | 1981-06-09 | 1982-12-16 | Kobe Steel Ltd | Oil-pressure circuit for oil-pressure shovel |
JPS5833647A (ja) * | 1981-08-19 | 1983-02-26 | Kobe Steel Ltd | 油圧シヨベルの油圧回路 |
EP0393195B1 (en) * | 1988-06-17 | 1994-01-12 | Kabushiki Kaisha Kobe Seiko Sho | Fluid control mechanism for power shovels |
JPH07122276B2 (ja) * | 1989-07-07 | 1995-12-25 | 油谷重工株式会社 | 建設機械の油圧ポンプ制御回路 |
US4986072A (en) * | 1989-08-31 | 1991-01-22 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic actuator circuit with flow-joining control |
IT1261382B (it) * | 1993-12-21 | 1996-05-20 | Vickers Systems Division Trino | Circuito idraulico di comando per organi di lavoro di macchine movimento terra |
-
1996
- 1996-07-04 IT IT96VR000063A patent/IT1289120B1/it active IP Right Grant
-
1997
- 1997-02-24 US US08/806,235 patent/US5829251A/en not_active Expired - Fee Related
- 1997-02-25 EP EP97830081A patent/EP0816577A1/en not_active Withdrawn
- 1997-02-25 CA CA2198405A patent/CA2198405A1/en not_active Abandoned
- 1997-03-21 JP JP9068054A patent/JPH1037908A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0816577A1 (en) | 1998-01-07 |
ITVR960063A1 (it) | 1998-01-04 |
US5829251A (en) | 1998-11-03 |
CA2198405A1 (en) | 1998-01-04 |
JPH1037908A (ja) | 1998-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |