BE861190A - Fluidumsysteem - Google Patents
FluidumsysteemInfo
- Publication number
- BE861190A BE861190A BE1008541A BE1008541A BE861190A BE 861190 A BE861190 A BE 861190A BE 1008541 A BE1008541 A BE 1008541A BE 1008541 A BE1008541 A BE 1008541A BE 861190 A BE861190 A BE 861190A
- Authority
- BE
- Belgium
- Prior art keywords
- fluidum
- fluidum system
- Prior art date
Links
Classifications
-
- 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
- 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
- F04B49/002—Hydraulic systems to change the pump delivery
-
- 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
- F15B2211/2053—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
- F15B2211/30—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
- F15B2211/32—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
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
-
- 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
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/753,251 US4055046A (en) | 1976-12-22 | 1976-12-22 | Control system having override for fluid operated work elements |
Publications (1)
Publication Number | Publication Date |
---|---|
BE861190A true BE861190A (nl) | 1978-05-25 |
Family
ID=25029830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE1008541A BE861190A (nl) | 1976-12-22 | 1977-11-25 | Fluidumsysteem |
Country Status (5)
Country | Link |
---|---|
US (1) | US4055046A (nl) |
JP (1) | JPS5379172A (nl) |
BE (1) | BE861190A (nl) |
CA (1) | CA1044569A (nl) |
GB (1) | GB1548792A (nl) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808196A1 (de) * | 1978-02-25 | 1979-09-06 | Bosch Gmbh Robert | Hydraulische steuereinrichtung |
US4354420A (en) * | 1979-11-01 | 1982-10-19 | Caterpillar Tractor Co. | Fluid motor control system providing speed change by combination of displacement and flow control |
US4335577A (en) * | 1980-06-19 | 1982-06-22 | Deere & Company | Hydraulic system having variable displacement pumps controlled by power beyond flow |
JPS592930A (ja) * | 1982-06-29 | 1984-01-09 | Komatsu Ltd | 油圧駆動式作業車両の油圧回路 |
US4739616A (en) * | 1985-12-13 | 1988-04-26 | Sundstrand Corporation | Summing pressure compensation control |
DE3742111A1 (de) * | 1987-04-02 | 1989-06-29 | Brueninghaus Hydraulik Gmbh | Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen veraenderlichen foerder- bzw. schluckvolumens |
DE3711050A1 (de) * | 1987-04-02 | 1988-10-20 | Brueninghaus Hydraulik Gmbh | Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen |
DE3711053A1 (de) * | 1987-04-02 | 1988-10-20 | Brueninghaus Hydraulik Gmbh | Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen |
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 |
US5333452A (en) * | 1992-08-31 | 1994-08-02 | Tony Dameron | Shaft drive hydraulic system and isolated hydraulic system |
US5337561A (en) * | 1992-11-17 | 1994-08-16 | Flow International Corporation | Ultra high pressure multiple intensifier system |
AU720849B2 (en) * | 1996-03-28 | 2000-06-15 | Clark Equipment Company | Multifunction valve stack |
US6018895A (en) * | 1996-03-28 | 2000-02-01 | Clark Equipment Company | Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements |
US6003313A (en) * | 1996-10-21 | 1999-12-21 | Farrar; Johnny | High pressure to low pressure exchange system for hydraulic drives |
JP3649139B2 (ja) * | 2001-03-15 | 2005-05-18 | コベルコ建機株式会社 | 走行制御装置 |
SE527434C8 (sv) * | 2004-07-28 | 2006-03-28 | Volvo Constr Equip Holding Se | Hydraulisksystem och arbetsmaskin innefattande ett sådant system |
JP4764923B2 (ja) * | 2006-05-15 | 2011-09-07 | 株式会社小松製作所 | 油圧走行車両および油圧走行車両の制御方法 |
JP6510396B2 (ja) * | 2015-12-28 | 2019-05-08 | 日立建機株式会社 | 作業機械 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3841795A (en) * | 1972-07-17 | 1974-10-15 | Caterpillar Tractor Co | Combined engine speed and pressure responsive control for variable displacement pumps |
US3963378A (en) * | 1975-06-04 | 1976-06-15 | Caterpillar Tractor Co. | Part throttle control -- pump override |
-
1976
- 1976-12-22 US US05/753,251 patent/US4055046A/en not_active Expired - Lifetime
-
1977
- 1977-07-28 GB GB31788/77A patent/GB1548792A/en not_active Expired
- 1977-08-16 CA CA284,803A patent/CA1044569A/en not_active Expired
- 1977-11-25 BE BE1008541A patent/BE861190A/nl not_active IP Right Cessation
- 1977-12-01 JP JP14336577A patent/JPS5379172A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1044569A (en) | 1978-12-19 |
JPS5379172A (en) | 1978-07-13 |
GB1548792A (en) | 1979-07-18 |
US4055046A (en) | 1977-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE860521A (nl) | Fluidumsysteem | |
SE428583B (sv) | Dubbelkylsystem | |
SE7707238L (sv) | Teckenigenkenningssystem | |
SE7609588L (sv) | Insats for skidkenga | |
SE7702099L (sv) | Datasystem | |
SE7710849L (sv) | Hydraulsystem | |
BE861190A (nl) | Fluidumsysteem | |
SE7706817L (sv) | Datafaksimilsystem | |
DK310277A (da) | Strommalesystem | |
TR20315A (tr) | Kuecueltuelebilen semsiye | |
FI762393A (fi) | System foer stabilisering av massasuspensionstroemmen i en hydraulisk inloppslaoda i en pappersmaskin | |
FI773086A (fi) | Backspegel foer fordon | |
BE851646A (nl) | Hydraulish systeem | |
SE7713709L (sv) | Anordni | |
NL7614126A (nl) | Fluidumregelsysteem. | |
AT340083B (de) | Anfahrstrang | |
BE851648A (nl) | Hydraulisch systeem | |
SE7701904L (sv) | Bromssystem | |
SE7609646L (sv) | Flerapparatsystem | |
SE7612670L (sv) | Hydraulanleggning | |
SE7614245L (sv) | Hydrauliskt system | |
SE411439B (sv) | Hallare for stangformiga foremal | |
SE402961B (sv) | Hydraulsystem | |
DK77377A (da) | Opvarmningsanleg | |
SE419927B (sv) | Hallaranordning for apparatenheter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: CATERPILLAR INC. Effective date: 19871130 |