SE459686B - Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin - Google Patents

Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin

Info

Publication number
SE459686B
SE459686B SE8604323A SE8604323A SE459686B SE 459686 B SE459686 B SE 459686B SE 8604323 A SE8604323 A SE 8604323A SE 8604323 A SE8604323 A SE 8604323A SE 459686 B SE459686 B SE 459686B
Authority
SE
Sweden
Prior art keywords
pressure
signal
control
unit
working
Prior art date
Application number
SE8604323A
Other languages
English (en)
Swedish (sv)
Other versions
SE8604323D0 (sv
SE8604323L (sv
Inventor
B Olofsson
Original Assignee
Akermans Verkstad Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Akermans Verkstad Ab filed Critical Akermans Verkstad Ab
Priority to SE8604323A priority Critical patent/SE459686B/sv
Publication of SE8604323D0 publication Critical patent/SE8604323D0/xx
Priority to EP87906854A priority patent/EP0327558A1/en
Priority to PCT/SE1987/000460 priority patent/WO1988002822A1/en
Publication of SE8604323L publication Critical patent/SE8604323L/xx
Priority to DK319788A priority patent/DK319788A/da
Priority to NO882584A priority patent/NO882584L/no
Priority to FI891739A priority patent/FI891739A7/fi
Publication of SE459686B publication Critical patent/SE459686B/sv

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
    • E02F9/2278—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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • 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
    • E02F9/2285—Pilot-operated systems
    • 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)
SE8604323A 1986-10-13 1986-10-13 Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin SE459686B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8604323A SE459686B (sv) 1986-10-13 1986-10-13 Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin
EP87906854A EP0327558A1 (en) 1986-10-13 1987-10-12 Method and device for a construction machine, particularly an excavator
PCT/SE1987/000460 WO1988002822A1 (en) 1986-10-13 1987-10-12 Method and device for a construction machine, particularly an excavator
DK319788A DK319788A (da) 1986-10-13 1988-06-09 Fremgangsmaade og apparat til regulering af en arbejdsmaskine og maskine til udoevelse af fremgangsmaaden
NO882584A NO882584L (no) 1986-10-13 1988-06-10 Fremgangsmaate og anordning for en arbeidsmaskin, saerlig en gravemaskin.
FI891739A FI891739A7 (fi) 1986-10-13 1989-04-12 Foerfarande och anordning foer arbetsmaskin.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8604323A SE459686B (sv) 1986-10-13 1986-10-13 Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin

Publications (3)

Publication Number Publication Date
SE8604323D0 SE8604323D0 (sv) 1986-10-13
SE8604323L SE8604323L (sv) 1988-04-14
SE459686B true SE459686B (sv) 1989-07-24

Family

ID=20365899

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8604323A SE459686B (sv) 1986-10-13 1986-10-13 Foerfarande och anordning foer aendring av det av pumpsystemet maximalt aastadkombara hydraularbetstrycket i en graevmaskin

Country Status (5)

Country Link
EP (1) EP0327558A1 (da)
DK (1) DK319788A (da)
FI (1) FI891739A7 (da)
SE (1) SE459686B (da)
WO (1) WO1988002822A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067049A1 (en) * 2007-11-21 2009-05-28 Volvo Construction Equipment Ab Method for controlling a working machine
RU2458206C2 (ru) * 2007-11-21 2012-08-10 Вольво Констракшн Эквипмент Аб Способ управления рабочей машиной

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3844398C2 (de) * 1988-12-30 1997-07-31 Rexroth Mannesmann Gmbh Hydraulische Schaltung für eine Verstellpumpe
DE19947199A1 (de) * 1999-10-01 2001-04-05 Bosch Gmbh Robert Einrichtung zur Steuerung und Überwachung des Drucks an einem hydraulischen Verbraucher
EP3020874B1 (en) * 2014-11-12 2022-07-06 John Deere Forestry Oy A hydraulic control system for controlling a moveable device
JP7095287B2 (ja) * 2018-01-22 2022-07-05 コベルコ建機株式会社 旋回式油圧作業機械

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1650771B2 (de) * 1968-03-13 1976-10-28 Linde Ag, 6200 Wiesbaden Antriebsaggregat fuer mindestens zwei verbraucher
US3826090A (en) * 1973-07-25 1974-07-30 Deere & Co Variable pressure hydraulic system
DE2413295B2 (de) * 1974-03-20 1978-02-02 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung fuer eine verstellbare pumpe
US4094144A (en) * 1977-03-16 1978-06-13 Strojarske A Metalurgicke Zavody Hydraulic pressure regulating arrangement
DE3340332C2 (de) * 1983-11-08 1988-11-10 Hydromatik GmbH, 7915 Elchingen Leistungs-Regelvorrichtung für einen hydrostatischen Antrieb mit Fördermengeneinstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067049A1 (en) * 2007-11-21 2009-05-28 Volvo Construction Equipment Ab Method for controlling a working machine
RU2458206C2 (ru) * 2007-11-21 2012-08-10 Вольво Констракшн Эквипмент Аб Способ управления рабочей машиной

Also Published As

Publication number Publication date
FI891739A0 (fi) 1989-04-12
DK319788A (da) 1988-08-10
FI891739A7 (fi) 1989-04-12
SE8604323D0 (sv) 1986-10-13
WO1988002822A1 (en) 1988-04-21
DK319788D0 (da) 1988-06-09
EP0327558A1 (en) 1989-08-16
SE8604323L (sv) 1988-04-14

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