FI891739A0 - Foerfarande och anordning foer arbetsmaskin. - Google Patents

Foerfarande och anordning foer arbetsmaskin.

Info

Publication number
FI891739A0
FI891739A0 FI891739A FI891739A FI891739A0 FI 891739 A0 FI891739 A0 FI 891739A0 FI 891739 A FI891739 A FI 891739A FI 891739 A FI891739 A FI 891739A FI 891739 A0 FI891739 A0 FI 891739A0
Authority
FI
Finland
Prior art keywords
arbetsmaskin
anordning foer
och anordning
foerfarande och
foerfarande
Prior art date
Application number
FI891739A
Other languages
English (en)
Finnish (fi)
Other versions
FI891739A (fi
Inventor
Bertil Olofsson
Ola Carlqvist
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
Publication of FI891739A publication Critical patent/FI891739A/fi
Publication of FI891739A0 publication Critical patent/FI891739A0/fi

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)
FI891739A 1986-10-13 1989-04-12 Foerfarande och anordning foer arbetsmaskin. FI891739A0 (fi)

Applications Claiming Priority (2)

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
PCT/SE1987/000460 WO1988002822A1 (en) 1986-10-13 1987-10-12 Method and device for a construction machine, particularly an excavator

Publications (2)

Publication Number Publication Date
FI891739A FI891739A (fi) 1989-04-12
FI891739A0 true FI891739A0 (fi) 1989-04-12

Family

ID=20365899

Family Applications (1)

Application Number Title Priority Date Filing Date
FI891739A FI891739A0 (fi) 1986-10-13 1989-04-12 Foerfarande och anordning foer arbetsmaskin.

Country Status (5)

Country Link
EP (1) EP0327558A1 (sv)
DK (1) DK319788A (sv)
FI (1) FI891739A0 (sv)
SE (1) SE459686B (sv)
WO (1) WO1988002822A1 (sv)

Families Citing this family (6)

* 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
CN102016186B (zh) * 2007-11-21 2014-06-11 沃尔沃建筑设备公司 用于控制作业机械的方法
RU2458206C2 (ru) * 2007-11-21 2012-08-10 Вольво Констракшн Эквипмент Аб Способ управления рабочей машиной
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

Also Published As

Publication number Publication date
DK319788A (da) 1988-08-10
FI891739A (fi) 1989-04-12
DK319788D0 (da) 1988-06-09
SE8604323D0 (sv) 1986-10-13
WO1988002822A1 (en) 1988-04-21
SE459686B (sv) 1989-07-24
EP0327558A1 (en) 1989-08-16
SE8604323L (sv) 1988-04-14

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: ÅKERMANS VERKSTAD AB