NO20032876L - Device at an excavator - Google Patents

Device at an excavator

Info

Publication number
NO20032876L
NO20032876L NO20032876A NO20032876A NO20032876L NO 20032876 L NO20032876 L NO 20032876L NO 20032876 A NO20032876 A NO 20032876A NO 20032876 A NO20032876 A NO 20032876A NO 20032876 L NO20032876 L NO 20032876L
Authority
NO
Norway
Prior art keywords
excavator
Prior art date
Application number
NO20032876A
Other languages
Norwegian (no)
Other versions
NO20032876D0 (en
NO320025B1 (en
Inventor
Per Jorgen Myrhe
Original Assignee
Per Jorgen Myrhe
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 Per Jorgen Myrhe filed Critical Per Jorgen Myrhe
Priority to NO20032876A priority Critical patent/NO320025B1/en
Publication of NO20032876D0 publication Critical patent/NO20032876D0/en
Priority to PCT/NO2004/000184 priority patent/WO2004113622A1/en
Priority to EP04748760A priority patent/EP1639205A1/en
Publication of NO20032876L publication Critical patent/NO20032876L/en
Publication of NO320025B1 publication Critical patent/NO320025B1/en

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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/625—Accumulators
    • 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
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/88—Control measures for saving energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Actuator (AREA)
  • Types And Forms Of Lifts (AREA)
NO20032876A 2003-06-23 2003-06-23 Device at an excavator NO320025B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO20032876A NO320025B1 (en) 2003-06-23 2003-06-23 Device at an excavator
PCT/NO2004/000184 WO2004113622A1 (en) 2003-06-23 2004-06-23 Device for a mechanical digger
EP04748760A EP1639205A1 (en) 2003-06-23 2004-06-23 Device for a mechanical digger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20032876A NO320025B1 (en) 2003-06-23 2003-06-23 Device at an excavator

Publications (3)

Publication Number Publication Date
NO20032876D0 NO20032876D0 (en) 2003-06-23
NO20032876L true NO20032876L (en) 2004-12-24
NO320025B1 NO320025B1 (en) 2005-10-10

Family

ID=27730995

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20032876A NO320025B1 (en) 2003-06-23 2003-06-23 Device at an excavator

Country Status (3)

Country Link
EP (1) EP1639205A1 (en)
NO (1) NO320025B1 (en)
WO (1) WO2004113622A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032415A1 (en) * 2010-07-27 2012-02-02 Hydac Technology Gmbh Apparatus for recovering energy
DE102010051663A1 (en) * 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh implement
DE102010051664A1 (en) 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh implement
DE102010051651A1 (en) 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh implement
DE102010051665A1 (en) * 2010-11-17 2012-05-24 Liebherr-Hydraulikbagger Gmbh implement
GB2576783B (en) * 2018-09-03 2021-01-06 Caterpillar Global Mining Llc Apparatus for operating a machine work tool
EP3983685A4 (en) * 2019-06-17 2023-07-05 Elmaco AS Cylinder, hydraulic system, construction machine and procedure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514051A1 (en) * 1981-10-05 1983-04-08 Komatsu Mfg Co Ltd MECHANICAL SHOVEL WITH HYDRAULIC CONTROL
AU4047900A (en) * 1999-04-06 2000-10-23 Edwin E. Downer Jr Energy conservation system for earth-moving loading machines
JP4565528B2 (en) * 2000-03-03 2010-10-20 パスカルエンジニアリング株式会社 Fluid pressure cylinder with pressure increasing function

Also Published As

Publication number Publication date
NO20032876D0 (en) 2003-06-23
WO2004113622A1 (en) 2004-12-29
WO2004113622B1 (en) 2005-03-17
EP1639205A1 (en) 2006-03-29
NO320025B1 (en) 2005-10-10

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Legal Events

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