DE59510929D1 - Load-sensing circuit - Google Patents
Load-sensing circuitInfo
- Publication number
- DE59510929D1 DE59510929D1 DE59510929T DE59510929T DE59510929D1 DE 59510929 D1 DE59510929 D1 DE 59510929D1 DE 59510929 T DE59510929 T DE 59510929T DE 59510929 T DE59510929 T DE 59510929T DE 59510929 D1 DE59510929 D1 DE 59510929D1
- Authority
- DE
- Germany
- Prior art keywords
- load
- sensing circuit
- sensing
- circuit
- 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 - Fee Related
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
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery 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
- 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
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
-
- 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
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/25—Pressure control functions
- F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load 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
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle valves
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6058—Load sensing circuits with isolator valves
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/67—Methods for controlling pilot 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4447154A DE4447154C2 (en) | 1994-12-29 | 1994-12-29 | Load-sensing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59510929D1 true DE59510929D1 (en) | 2004-08-26 |
Family
ID=6537452
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4447154A Expired - Fee Related DE4447154C2 (en) | 1994-12-29 | 1994-12-29 | Load-sensing circuit |
DE59510929T Expired - Fee Related DE59510929D1 (en) | 1994-12-29 | 1995-12-27 | Load-sensing circuit |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4447154A Expired - Fee Related DE4447154C2 (en) | 1994-12-29 | 1994-12-29 | Load-sensing circuit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0719947B1 (en) |
DE (2) | DE4447154C2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19713934B4 (en) * | 1997-04-04 | 2004-06-03 | Brueninghaus Hydromatik Gmbh | Load pressure-controlled flow regulator with flushing circuit |
DE10134747B4 (en) * | 2001-07-17 | 2017-05-04 | Liebherr-Machines Bulle S.A. | Method and device for load-dependent control of the fluid supply of a fluid circuit |
DE10209964A1 (en) * | 2002-03-06 | 2003-09-25 | Zf Lenksysteme Gmbh | System for controlling a hydraulic variable pump |
DE102005016181B4 (en) * | 2005-04-08 | 2018-05-09 | Robert Bosch Automotive Steering Gmbh | Regulating device for a hydraulic conveyor |
DE102006002959A1 (en) * | 2006-01-21 | 2007-07-26 | Zf Lenksysteme Gmbh | Hydraulic system for use in vehicles, has current regulating piston, where height of application of pressure of current regulating piston, for adjustment to pressure is changed, according to flow against lateral pressure |
DE102006014074B4 (en) * | 2006-03-28 | 2017-04-06 | Robert Bosch Gmbh | Dosing system and method for dispensing an additive in an exhaust system of an internal combustion engine |
DE102007039589A1 (en) * | 2007-08-22 | 2009-02-26 | Voigt, Dieter, Dipl.-Ing. | Regular oil pump with adjustment-dependent oil pressure control |
DE102008031768A1 (en) * | 2008-07-04 | 2010-01-07 | Alpha Fluid Hydrauliksysteme Müller GmbH | Regulating arrangement for proportional angle adjustment in driving or lifting units comprises a tension spring connected at its ends directly to the lifting component of a hydraulic linear motor component |
DE102012112879B4 (en) * | 2012-12-21 | 2014-08-07 | Pierburg Gmbh | Valve device for a hydraulic circuit and oil pump control arrangement |
DE102013216395B4 (en) * | 2013-08-19 | 2019-01-17 | Danfoss Power Solutions a.s. | CONTROL DEVICE FOR HYDRAULIC ADJUSTING PUMPS AND ADJUSTING PUMP WITH A CONTROL DEVICE |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2910611A1 (en) * | 1979-03-17 | 1980-09-18 | Bosch Gmbh Robert | HYDRAULIC SYSTEM |
DE2913534A1 (en) * | 1979-04-04 | 1980-10-16 | Bosch Gmbh Robert | Flow and pressure control for variable delivery pump - has flow control valve operated by throttle differential and limited pilot pressure |
US4292805A (en) * | 1979-09-24 | 1981-10-06 | Rexnord Inc. | Servo-valve convertible construction |
DE3200885A1 (en) * | 1982-01-14 | 1983-07-21 | Robert Bosch Gmbh, 7000 Stuttgart | Output regulator for a hydrostatic pump |
DE3340332C2 (en) * | 1983-11-08 | 1988-11-10 | Hydromatik GmbH, 7915 Elchingen | Power control device for a hydrostatic drive with flow rate adjustment |
DE3805061A1 (en) * | 1988-02-18 | 1989-08-31 | Linde Ag | HYDRAULIC SWITCHING ARRANGEMENT |
EP0586214B1 (en) * | 1992-08-31 | 1997-10-22 | Kayaba Industry Co., Ltd. | Control device for actuator |
KR0120281B1 (en) * | 1994-07-29 | 1997-10-22 | 석진철 | Apparatus for controlling input horse power and discharge of a pump in load sensing system of an excavator |
-
1994
- 1994-12-29 DE DE4447154A patent/DE4447154C2/en not_active Expired - Fee Related
-
1995
- 1995-12-27 EP EP95120626A patent/EP0719947B1/en not_active Expired - Lifetime
- 1995-12-27 DE DE59510929T patent/DE59510929D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0719947A2 (en) | 1996-07-03 |
DE4447154A1 (en) | 1996-07-11 |
DE4447154C2 (en) | 2002-05-29 |
EP0719947B1 (en) | 2004-07-21 |
EP0719947A3 (en) | 1998-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69505091D1 (en) | CIRCUIT ARRANGEMENT | |
DE69511661T2 (en) | Reference circuit | |
DE69517984T2 (en) | CIRCUIT ARRANGEMENT | |
DE69505203T2 (en) | Hydraulic circuit | |
DE69713480D1 (en) | CIRCUIT | |
DE59510929D1 (en) | Load-sensing circuit | |
DE69508316T2 (en) | Hydraulic circuit | |
DE69709604T2 (en) | CIRCUIT | |
ID16518A (en) | CIRCUIT REINSTALLER | |
DE29510986U1 (en) | Circuit arrangement | |
DE69716004D1 (en) | CIRCUIT | |
DE69714208D1 (en) | CIRCUIT | |
DE69521998D1 (en) | CIRCUIT ARRANGEMENT | |
DE69719720T2 (en) | CIRCUIT | |
DE69736273D1 (en) | CIRCUIT | |
DE69714163T2 (en) | CIRCUIT | |
DE69515115D1 (en) | CIRCUIT ARRANGEMENT | |
DE69508740D1 (en) | CIRCUIT ARRANGEMENT | |
DE69714207D1 (en) | CIRCUIT | |
ATA75996A (en) | CIRCUIT ARRANGEMENT | |
DE69737056D1 (en) | CIRCUIT | |
ATA28794A (en) | CIRCUIT ARRANGEMENT | |
ATA27194A (en) | CIRCUIT ARRANGEMENT | |
KR960019342U (en) | Blackback circuit | |
KR960018759U (en) | Anti-greening circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |