NO20200361A1 - Anordning ved anleggsmaskin med energiforsyning fra hydrogen brenselcelle og kraftoverføring med hydraulikk og volumnøytrale hydrauliske sylindere - Google Patents

Anordning ved anleggsmaskin med energiforsyning fra hydrogen brenselcelle og kraftoverføring med hydraulikk og volumnøytrale hydrauliske sylindere Download PDF

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Publication number
NO20200361A1
NO20200361A1 NO20200361A NO20200361A NO20200361A1 NO 20200361 A1 NO20200361 A1 NO 20200361A1 NO 20200361 A NO20200361 A NO 20200361A NO 20200361 A NO20200361 A NO 20200361A NO 20200361 A1 NO20200361 A1 NO 20200361A1
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Norway
Prior art keywords
fuel cell
hydrogen fuel
volume
energy supply
battery
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NO20200361A
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English (en)
Inventor
Per Olav Haughom
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Elmaco As
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Publication date
Application filed by Elmaco As filed Critical Elmaco As
Priority to NO20200361A priority Critical patent/NO20200361A1/no
Priority to US17/910,430 priority patent/US20230151585A1/en
Priority to PCT/NO2021/050086 priority patent/WO2021194356A1/en
Priority to EP21721998.9A priority patent/EP4127327B1/en
Publication of NO20200361A1 publication Critical patent/NO20200361A1/no

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00Structural combinations of different types of electrochemical generators
    • H01M16/003Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
    • H01M16/006Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable batteries
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2221Control of flow rate; Load sensing arrangements
    • E02F9/2232Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/75Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/40Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • E02F3/42Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units
    • E02F9/2091Control of energy storage means for electrical energy, e.g. battery or capacitors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2203Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20Drives; Control devices
    • E02F9/22Hydraulic or pneumatic drives
    • E02F9/2217Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00Type of vehicles
    • B60L2200/40Working vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00Type of vehicle
    • B60Y2200/40Special vehicles
    • B60Y2200/41Construction vehicles, e.g. graders, excavators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/20507Type of prime mover
    • F15B2211/20515Electric motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20561Type of pump reversible
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20569Type of pump capable of working as pump and motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/27Directional control by means of the pressure source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/70Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051Linear output members
    • F15B2211/7053Double-acting output members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/88Control measures for saving energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fuel Cell (AREA)

Description

ANORDNING VED ANLEGGSMASKIN MED ENERGIFORSYNING FRA HYDROGEN BRENSELCELLE OG KRAFTOVERFØRING MED HYDRAULIKK OG VOLUMNØYTRALE HYDRAULISKE SYLINDERE
Denne oppfinnelsen vedrører en anordning til bruk ved energiforsyning til e anleggsmaskin. Nærmere bestemt dreier det seg om en hydrogenbrenselcelle som genererer strøm til ladning av batteri som igjen forsyner en elektrohydraulisk kraftoverføring med regenerering av energi med volumnøytrale sylindere.
Anleggsbransjen og spesielt anleggsmaskiner som med dagens forbrenningsmotorer slipper ut mye C02, står nå overfor strengere krav til utslipp av klimagasser. Dette fører til at batteri som energiforsyning i anleggsmaskiner nå er en løsning som i stadig større omfang blir tatt i bruk. Med batteridrift blir det mer påkrevet å finne effektive energi- og kraftoverførings systemer som med minimale energitap lader og omsetter energien i batteriet til arbeid på maskinen. Batterier er kostbare å installere o store energitap gir korte perioder mellom hver ladning og derved redusert effektivitet på maskinen.
Med foreliggende oppfinnelse har en kommet frem til en løsning der batterie lades med en hydrogenbrenselcelle, slik at anleggsmaskinen kan operere ut ladeperioder. Brenselcellen har en forholdsvis liten effekt, men kjører kontinuerlig, slik at energimengden som mates inn i batteriet er lik den som ta ut. Batteriet fungerer som en for regulator, slik at effekttopper kan tas ut når maskinen har behov for kortvarig effekttopper.
Ved å kombinere hydrogenbrenselcelle med batteri og en energieffektiv kraftoverføring har en kommet frem til en løsning for anleggsmaskiner som gir null utslipp og lange arbeidsperioder uten tilgang på elektrisk ladning, men bare skifte av hydrogentank eller etterfylling.
En hydrogenbrenselcelle med tilhørende hydrogentank leverer elektrisk ener med konstant effekt til et battere, slik at energimengden som leveres inn er lik energimengden som tas ut fra batteriet med varierende styrke.
For å redusere energitapet er maskinen forsynt med en energieffektiv kraftoverføring som består av elektromotorer tilordnet hydraulikkpumper, slik at volumstrømmen og trykk til hydrauliske volumnøytralesylindere reguleres av turtall på elektromotoren og ikke med ventiler. Hydraulikksylindrene er utført som volumnøytrale sylindere, dvs at ved lastsenking går hydraulikkpumpene som motorer og elektromotorene som generator med regenerering av energ til batteriet.
Oppfinnelsen skal nå forklares nærmere med henvisning til et foretrukket utførelseseksempel hvor:
Fig 1 viser en gravemaskin med hydrogenbrenselcelle og batteri
Fig 2 viser prinsippskjema for kraftoverføring og batteri med lading fra hydrogenbrenselcelle
På figurene betegner henvisningstallet 1 en gravemaskin med hovedramme førerhus 6 og belteunderstell 12. Gravemaskinen 1 er videre forsynt med en hovedbom 2 forbundet til stkke 16 tilordnet graveskuffe 15. Til å bevege bommen 2, stikke 16 og graveskuffen 15 er det anordnet volumnøytrale sylindere 3,4,5. Maskinen er også forsynt med batteri 7 hydrogentank 8 og hydrogenbrenselcelle 11 samt elektromotorer 10.
Hydrogenbrenselcellen 11 henter hydrogen fra tanken 8 via forbindelsen 1 hydrogenbrenselcellen 11 omdannes hydrogenet til strøm som sendes gjennom forbindelsen 25 til en omformeren 19 og vider til batteriet 7 gjenno forbindelsen 20.
Hastigheten på volumnøytral sylindere 3,4og 5 styres ved hjelp av hendelen og giveren 22 som gir signal via forbindelsen 21 til elektrisk drive 17 som hente strøm fra batteriet gjennom forbindelsen 20 og styrer strøm til motoren 10, slik at omdreiningstallet kan varieres i retning og utslag med hendelen 23.
Pumpen 31 er koblet til motoren 10 og gir oljemengde til volumnøytral sylindere 3,4, og 5. Med volumnøytral sylinder menes i denne sammenhenge en hydraulisk sylinder som har likt slagvolum i begge retninger slik at når laste senkes går like stor volumstrøm tilbake som inn i sylinderen. Derved kan pumpen 31 kjøres som motor og motoren 10 blir generator og genererer en tilbake til batteriet 7 gjennom elektrisk drive 17. En etterfyllingsventil 28 og pumpe 24 er anordnet for å etterfylle interne lekkasjer i pumpen 31 og volumnøytrale sylindere 3,4og 5.

Claims (1)

  1. Patentkrav 1
    Anordning ved gravemaskin(l) utført med bom(2) stikke (16) og graveskuffe (15) tilordnet volumnøytrale sylindere(3,4,5) og montert på en hovedramme (9) med et belteunderstell(12) og førerhu ksa (r6a),kterise vretd at energitilførsel til drift av elektromotoren(lO) med hydraulikkpumpen(31) genereres i en hydrogenbrenselcelle (11) som leverer strøm til lading av batteriet (7).
    Patentkrav 2
    Anordning som beskrevet i patentk krav ra 1,kterise vretd at bevegelsene til bom(2) stikke(16) og skuffe(15) tilveiebringes av volumnøytrale sylindere (3,4,5) koblet til pumpen (31) og turtallregulert av motoren(lO) gjennom hendelen (23).
NO20200361A 2020-03-26 2020-03-26 Anordning ved anleggsmaskin med energiforsyning fra hydrogen brenselcelle og kraftoverføring med hydraulikk og volumnøytrale hydrauliske sylindere NO20200361A1 (no)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NO20200361A NO20200361A1 (no) 2020-03-26 2020-03-26 Anordning ved anleggsmaskin med energiforsyning fra hydrogen brenselcelle og kraftoverføring med hydraulikk og volumnøytrale hydrauliske sylindere
US17/910,430 US20230151585A1 (en) 2020-03-26 2021-03-26 Apparatus for use on construction or worksite machines, for example an excavator
PCT/NO2021/050086 WO2021194356A1 (en) 2020-03-26 2021-03-26 Apparatus for use on construction or worksite machines, for example an excavator
EP21721998.9A EP4127327B1 (en) 2020-03-26 2021-03-26 Apparatus for use on construction or worksite machines, for example an excavator

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Application Number Priority Date Filing Date Title
NO20200361A NO20200361A1 (no) 2020-03-26 2020-03-26 Anordning ved anleggsmaskin med energiforsyning fra hydrogen brenselcelle og kraftoverføring med hydraulikk og volumnøytrale hydrauliske sylindere

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EP (1) EP4127327B1 (no)
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WO2007148382A1 (ja) * 2006-06-20 2007-12-27 Mitsuru Suematsu 駆動ユニット、油圧式の作業用機械および電気自動車
US20120160796A1 (en) * 2010-12-22 2012-06-28 Terex Demag Gmbh Crane and method for operating a crane using recovery of energy from crane operations as a secondary energy source
RU2652596C1 (ru) * 2017-01-09 2018-04-27 Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный лесотехнический университет имени Г.Ф. Морозова" Гидропривод грузоподъемного механизма стрелы манипулятора

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3134399A1 (fr) * 2022-04-12 2023-10-13 Manitou Bf Procédé de commande d'une pile à combustible d'une machine de travail
WO2023198419A1 (fr) * 2022-04-12 2023-10-19 Manitou Bf Procédé de commande d'une pile à combustible d'une machine de travail

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