DE602005003980D1 - Hydraulic control unit - Google Patents
Hydraulic control unitInfo
- Publication number
- DE602005003980D1 DE602005003980D1 DE200560003980 DE602005003980T DE602005003980D1 DE 602005003980 D1 DE602005003980 D1 DE 602005003980D1 DE 200560003980 DE200560003980 DE 200560003980 DE 602005003980 T DE602005003980 T DE 602005003980T DE 602005003980 D1 DE602005003980 D1 DE 602005003980D1
- Authority
- DE
- Germany
- Prior art keywords
- control unit
- hydraulic control
- hydraulic
- unit
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/167—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load using pilot pressure to sense the demand
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
- F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
- F15B2211/3127—Floating position connecting the working ports and the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/781—Control of multiple output members one or more output members having priority
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004148967 | 2004-05-19 | ||
JP2004148967A JP4139352B2 (en) | 2004-05-19 | 2004-05-19 | Hydraulic control device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE602005003980D1 true DE602005003980D1 (en) | 2008-02-07 |
DE602005003980T2 DE602005003980T2 (en) | 2008-04-30 |
Family
ID=34936654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200560003980 Active DE602005003980T2 (en) | 2004-05-19 | 2005-05-18 | Hydraulic control unit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1598561B1 (en) |
JP (1) | JP4139352B2 (en) |
CN (1) | CN100516555C (en) |
DE (1) | DE602005003980T2 (en) |
Families Citing this family (33)
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 |
KR100906228B1 (en) | 2007-03-30 | 2009-07-07 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Hydraulic circuit of construction equipment |
CN101929177A (en) * | 2008-07-02 | 2010-12-29 | 沃尔沃建造设备控股(瑞典)有限公司 | Be used for hydraulic control system of excavator |
JP5188444B2 (en) * | 2009-04-23 | 2013-04-24 | カヤバ工業株式会社 | Hydraulic drive device for work equipment |
JP6015157B2 (en) * | 2011-07-01 | 2016-10-26 | コベルコ建機株式会社 | Construction machinery |
US8966892B2 (en) | 2011-08-31 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having restricted primary makeup |
US8944103B2 (en) | 2011-08-31 | 2015-02-03 | Caterpillar Inc. | Meterless hydraulic system having displacement control valve |
US8863509B2 (en) | 2011-08-31 | 2014-10-21 | Caterpillar Inc. | Meterless hydraulic system having load-holding bypass |
US9151018B2 (en) | 2011-09-30 | 2015-10-06 | Caterpillar Inc. | Closed-loop hydraulic system having energy recovery |
US9051714B2 (en) | 2011-09-30 | 2015-06-09 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US8966891B2 (en) | 2011-09-30 | 2015-03-03 | Caterpillar Inc. | Meterless hydraulic system having pump protection |
US9057389B2 (en) | 2011-09-30 | 2015-06-16 | Caterpillar Inc. | Meterless hydraulic system having multi-actuator circuit |
US8910474B2 (en) | 2011-10-21 | 2014-12-16 | Caterpillar Inc. | Hydraulic system |
US9068578B2 (en) | 2011-10-21 | 2015-06-30 | Caterpillar Inc. | Hydraulic system having flow combining capabilities |
US8919114B2 (en) | 2011-10-21 | 2014-12-30 | Caterpillar Inc. | Closed-loop hydraulic system having priority-based sharing |
US8893490B2 (en) | 2011-10-21 | 2014-11-25 | Caterpillar Inc. | Hydraulic system |
US8978373B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8943819B2 (en) | 2011-10-21 | 2015-02-03 | Caterpillar Inc. | Hydraulic system |
US9080310B2 (en) | 2011-10-21 | 2015-07-14 | Caterpillar Inc. | Closed-loop hydraulic system having regeneration configuration |
US8973358B2 (en) | 2011-10-21 | 2015-03-10 | Caterpillar Inc. | Closed-loop hydraulic system having force modulation |
US8978374B2 (en) | 2011-10-21 | 2015-03-17 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
US8984873B2 (en) | 2011-10-21 | 2015-03-24 | Caterpillar Inc. | Meterless hydraulic system having flow sharing and combining functionality |
JP5901378B2 (en) * | 2012-03-23 | 2016-04-06 | Kyb株式会社 | Travel control valve |
US9279236B2 (en) | 2012-06-04 | 2016-03-08 | Caterpillar Inc. | Electro-hydraulic system for recovering and reusing potential energy |
US9290912B2 (en) | 2012-10-31 | 2016-03-22 | Caterpillar Inc. | Energy recovery system having integrated boom/swing circuits |
JP6012021B2 (en) * | 2012-11-07 | 2016-10-25 | Kyb株式会社 | Hydraulic pressure control device for power shovel |
JP6004900B2 (en) * | 2012-11-07 | 2016-10-12 | Kyb株式会社 | Hydraulic pressure control device for power shovel |
US9290911B2 (en) | 2013-02-19 | 2016-03-22 | Caterpillar Inc. | Energy recovery system for hydraulic machine |
JP6196499B2 (en) * | 2013-08-20 | 2017-09-13 | ナブテスコ株式会社 | Multiple directional valve for construction machinery |
JP6231949B2 (en) * | 2014-06-23 | 2017-11-15 | 株式会社日立建機ティエラ | Hydraulic drive unit for construction machinery |
JP6555709B2 (en) * | 2015-04-17 | 2019-08-07 | キャタピラー エス エー アール エル | Fluid pressure circuit and work machine |
JP6898834B2 (en) * | 2017-11-15 | 2021-07-07 | Kyb−Ys株式会社 | Fluid pressure controller |
CN111197603B (en) * | 2020-03-05 | 2021-11-30 | 三一汽车起重机械有限公司 | Divide and shut flow control module, two main pump oil feeding system, hydraulic system and engineering machine tool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03260401A (en) * | 1990-03-09 | 1991-11-20 | Hitachi Constr Mach Co Ltd | Hydraulic driving unit for civil engineering and construction machine |
KR100217536B1 (en) * | 1990-08-06 | 1999-09-01 | 윌리엄 비. 켐플러 | Event qualified test architecture |
JP4548959B2 (en) * | 2001-03-19 | 2010-09-22 | カヤバ工業株式会社 | Hydraulic control device |
JP4137431B2 (en) * | 2001-11-09 | 2008-08-20 | ナブテスコ株式会社 | Hydraulic circuit |
-
2004
- 2004-05-19 JP JP2004148967A patent/JP4139352B2/en not_active Expired - Fee Related
-
2005
- 2005-05-18 DE DE200560003980 patent/DE602005003980T2/en active Active
- 2005-05-18 EP EP20050010782 patent/EP1598561B1/en not_active Expired - Fee Related
- 2005-05-19 CN CNB2005100727619A patent/CN100516555C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1598561B1 (en) | 2007-12-26 |
CN1699761A (en) | 2005-11-23 |
JP2005331011A (en) | 2005-12-02 |
CN100516555C (en) | 2009-07-22 |
EP1598561A3 (en) | 2005-12-14 |
EP1598561A2 (en) | 2005-11-23 |
DE602005003980T2 (en) | 2008-04-30 |
JP4139352B2 (en) | 2008-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |