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WO2025157539A1 - Machine de travail agricole, système hydraulique pour une machine de travail agricole et procédé pour faire fonctionner une machine de travail agricole - Google Patents

Machine de travail agricole, système hydraulique pour une machine de travail agricole et procédé pour faire fonctionner une machine de travail agricole

Info

Publication number
WO2025157539A1
WO2025157539A1 PCT/EP2024/087273 EP2024087273W WO2025157539A1 WO 2025157539 A1 WO2025157539 A1 WO 2025157539A1 EP 2024087273 W EP2024087273 W EP 2024087273W WO 2025157539 A1 WO2025157539 A1 WO 2025157539A1
Authority
WO
WIPO (PCT)
Prior art keywords
displacement unit
hydraulic
displacement
pressure level
adjustable
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/EP2024/087273
Other languages
German (de)
English (en)
Inventor
Karl-Peter Hoffmann
Marcus Oldenburger
Nils Hahnkemeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amazonen Werke H Dreyer SE and Co KG
Original Assignee
Amazonen Werke H Dreyer SE and Co KG
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 Amazonen Werke H Dreyer SE and Co KG filed Critical Amazonen Werke H Dreyer SE and Co KG
Publication of WO2025157539A1 publication Critical patent/WO2025157539A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A01C15/04—Fertiliser distributors using blowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C19/00—Arrangements for driving working parts of fertilisers or seeders
    • A01C19/02—Arrangements for driving working parts of fertilisers or seeders by a motor

Definitions

  • the invention relates to an agricultural working machine according to the preamble of patent claim 1, a hydraulic system for an agricultural working machine according to the preamble of patent claim 10 and a method for operating an agricultural working machine according to the preamble of patent claim 11.
  • Agricultural machinery comes in various designs and is used for a wide variety of agricultural purposes. These include, for example, distribution machines for spreading material on agricultural land, such as seed drills for sowing seeds, spreaders for distributing fertilizer, or sprayers for applying pesticides.
  • distribution machines for spreading material on agricultural land such as seed drills for sowing seeds, spreaders for distributing fertilizer, or sprayers for applying pesticides.
  • blowers for pneumatically pressurizing conveying lines and/or conveying the material to be distributed.
  • blowers are typically driven by a hydraulic system associated with the machine, which also serves to hydraulically actuate and/or operate one or more consumers, particularly work units, of the machine.
  • EP 4 170 189 2 describes an agricultural machine designed as a seed drill with a hydraulic system that has a displacement unit for driving the blower.
  • the displacement unit is designed in the manner of an adjustment drive and can be adjusted to different hydraulic loads as required.
  • blowers and consumers with to operate with different loads which is not readily possible with a displacement unit arranged as before.
  • Different loads between the blower and consumers, especially working units can only be achieved by replacing the blower or the hydraulic blower drive or by additional hydraulic devices such as throttles, flow control valves, or the like, which, however, are detrimental to the efficiency of the hydraulic system.
  • the object underlying the invention is therefore to design an agricultural work machine in such a way that the hydraulic system is both further simplified and even more efficient.
  • the object is to create a hydraulic system that is particularly easy to adapt to different operating conditions and/or configurations of agricultural work machines.
  • the displacement unit is designed in the manner of an adjustment drive, preferably an adjustment motor or an adjustment pump, with an adjustable displacement volume, which is coupled to the blower in a mechanical and force-transmitting manner.
  • the displacement unit designed as an adjustment drive is coupled to the at least one fan in a torque-transmitting manner.
  • the displacement unit is preferably arranged on and/or next to the fan.
  • the displacement unit is preferably configured to set and/or adapt a drive torque introduced into the fan, with which the fan is operated.
  • a torque generated or generateable by the displacement unit as required is or can be transmitted mechanically into and/or to the fan.
  • the displacement unit preferably only generates as much torque as is currently required by the fan for the respective operating situation and/or machine configuration.
  • a work machine designed in this way allows particularly efficient operation of the at least one fan.
  • the displacement unit in the form of an adjustable drive is preferably understood to be a hydraulically operated motor (adjustable motor) or a hydraulically operated pump (adjustable pump) with adjustable and/or adaptable displacement.
  • a displacement unit can be designed, for example, in the form of an axial piston pump or a radial piston motor.
  • displacement volume preferably refers to the volume or quantity of hydraulic fluid that the displacement unit displaces or requires per revolution.
  • the displacement volume can be adjusted, for example, via an adjusting disc or an adjusting ring within the displacement unit.
  • a torque-transmitting coupling device is provided, by means of which the displacement unit and the fan are connected to one another.
  • the coupling device preferably comprises at least one drive shaft arranged between the displacement unit and the fan.
  • the coupling device comprises at least one flange or the like by means of which the displacement unit and/or the at least one drive shaft is connected to the fan, in particular to a rotor arranged within the fan.
  • a step-up or step-down gear e.g., in the manner of a gearbox, can also be provided within the coupling device. In such an embodiment, the force and/or torque can be transmitted particularly easily and reliably from the displacement unit to the fan.
  • At least one adjustment device is assigned to the displacement unit, by means of which the displacement volume can be adjusted proportionally, preferably continuously or in stages, or in the manner of a two-point adjustment.
  • the adjustment device is preferably designed to vary the displacement volume of the displacement unit.
  • an adjustment disc or an adjustment ring within the displacement unit can be adjusted by means of the adjustment device to adjust the displacement volume.
  • the adjustment device allows the displacement volume to be adjusted externally on the displacement unit.
  • the adjustment device, and thus the displacement volume is adjustable before and/or during operation of the working machine.
  • the adjustment device, and thus the displacement volume can also be adjustable and/or at least limited by the machine manufacturer.
  • the adjustment device is at least partially designed as an electronic adjustment device, by means of which the displacement volume of the displacement unit can be adjusted remotely and/or automatically.
  • the adjustment device can be actuated automatically by a control and/or regulation system of the agricultural work machine and/or by an operator via an electronic operating device, such as a switch, button, rotary control, slide control, or a touch control panel.
  • an electronic operating device such as a switch, button, rotary control, slide control, or a touch control panel.
  • the adjustment device comprises at least one mechanical adjustment means, which is provided in an adjustable and/or replaceable manner for adjusting the displacement volume.
  • the adjustment means is preferably designed in the manner of at least one externally adjustable threaded screw and/or at least one externally adjustable stop, for example a stop screw.
  • at least one adjustment means can be provided on the displacement unit, which is replaceable for adjusting the displacement volume.
  • the adjustment means is preferably designed so that it can be adjusted by an operator.
  • the adjustment means comprises at least one adjustable actuator, which is particularly preferably remotely operable.
  • the hydraulic system is in particular assigned at least one hydraulic pressure supply device, which is intended to provide and/or supply at least one hydraulic fluid with at least a first pressure level for the one or more consumers and the displacement unit.
  • the pressure supply device can be at least partially assigned to the agricultural work machine and/or a tractor that can be coupled to the agricultural work machine.
  • the pressure supply device can comprise one or more hydraulic control units assigned to the tractor and/or the work machine, such as tractor control units.
  • the pressure supply device can also comprise one or more hydraulic motors and/or hydraulic pumps that convey the hydraulic fluid and are assigned to the tractor and/or agricultural work machine.
  • the displacement volume of the displacement unit is adjustable to adapt the first pressure level, in particular to a second pressure level, and/or to adapt a drive power of the fan.
  • the first pressure level provided and/or deliverable by the pressure supply device can be adapted by means of the displacement unit to a second pressure level, which is preferably different from the first pressure level.
  • the second pressure level can be higher or lower than the first pressure level as required.
  • the displacement volume of the displacement unit can also be adjustable such that at least temporary pressure fluctuations at the pressure supply device and/or the first pressure level can be at least partially compensated for driving the fan.
  • the displacement volume and/or second pressure level can be adjusted such that the first pressure level can be adapted, for example, increased or reduced, at least almost independently and/or with a constant drive power of the fan.
  • the displacement and/or the second pressure level can also be adjustable in such a way that the drive power of the blower can be adjusted at least almost independently and/or at a constant first
  • the pressure level can be adjusted, for example, increased or reduced.
  • the hydraulic system comprises at least one hydraulic line, in particular a hydraulic circuit, which can be connected to the pressure supply device and/or to the displacement unit in a fluid-conducting manner, for the one or more consumers or the working units and/or the at least one blower.
  • the displacement unit is configured to adjust, preferably increase, the pressure level in the hydraulic line, preferably in the hydraulic circuit, for the one or more consumers, preferably the working units, compared to the first pressure level to a second pressure level by adjusting the displacement volume.
  • the first pressure level provided via the pressure supply device, in particular the tractor control unit and/or the hydraulic control unit assigned to the work machine can be adjusted or increased by means of the displacement unit for the consumers.
  • this is done in such a way that the one or more consumers or working units can be operated with a second pressure level that is modified, in particular increased, compared to a first pressure level referred to as the supply pressure.
  • the displacement volume can be reduced or is reduced from the first to the second pressure level in order to increase the pressure level.
  • the absorption volume can be or is increased in order to reduce the pressure level from the first to the second pressure level.
  • the working machine comprises at least one share that can be brought into engagement with the ground with an adjustable working pressure.
  • the share can, for example, be designed in the manner of a row unit or a sowing unit.
  • the share can be designed like a tine or disc share.
  • a work machine is preferred in which the adjustable working pressure of the blade is adjustable by means of the displacement unit, in particular by changing the displacement volume and/or at least almost independently of the drive power for the fan.
  • the at least one blade can be subjected to the first pressure level provided by the pressure supply device and/or the adjustable working pressure results from the first pressure level, while the at least one fan can be operated at a second pressure level adjusted relative to the first pressure level.
  • the term “independent” is preferably understood to mean that the pressure level for the one or more consumers and/or the working pressure can be adjusted while maintaining at least a virtually unchanged or constant drive power of the blower.
  • the term “independent” in this context is preferably also understood to mean that the drive power of the blower can be adjusted while maintaining at least a virtually unchanged or constant pressure level for the one or more consumers and/or the working pressure.
  • working pressure preferably refers to a boom pressure, for example of a boom or machine frame, or a coulter pressure, for example for one or more coulters.
  • a boom pressure for example of a boom or machine frame
  • a coulter pressure for example for one or more coulters.
  • At least one metering and/or depositing device for the distribution material can be assigned to the at least one blade.
  • the metering and/or depositing device can, for example, be designed in the manner of a portioning and/or singling device for the demand-based metering and/or depositing of individual distribution material grains.
  • the metering and/or The storage device can also be operated hydraulically and/or pneumatically depending on the first pressure level.
  • the displacement volume of the displacement unit is adjustable depending on the material to be distributed, preferably a distribution material quality and/or a distribution material type.
  • the displacement volume can be adapted to the respective distribution material to be distributed before and/or during operation of the work machine.
  • a first displacement volume is provided and/or adjustable for a first distribution material type and/or a first distribution material quality
  • a second or different displacement volume, in particular different from the first displacement volume is provided and/or adjustable for at least one other distribution material type and/or another distribution material quality.
  • the displacement volume can be adjusted and/or adjusted during operation depending on a distribution result with which the distribution material is distributed and/or deposited on the usable area.
  • the monitoring of the distribution material quality, the distribution material type and/or the distribution result can be carried out automatically using sensors and/or manually by the operator. Such a design has a particularly positive effect on the work result and/or the distribution accuracy of the work machine.
  • the displacement volume can also be adjustable and/or adapted during operation depending on the travel and/or working speed of the working machine.
  • the object underlying the invention is also achieved with a hydraulic system for an agricultural work machine, preferably a distribution machine, wherein the work machine, in particular a distribution machine, is designed according to at least one of the above-described preferred embodiments of the agricultural work machine according to the invention.
  • the hydraulic system according to the invention it is preferably provided that the displacement volume of the displacement unit is presettable and/or adjustable depending on a machine configuration of the agricultural work machine, preferably a distribution machine.
  • the hydraulic system, in particular the displacement volume can be optimally matched to the respective options with which the work machine is or will be equipped.
  • the term "options" is preferably understood to mean the number and/or type of hydraulic consumers, in particular working units, and/or their configurations or settings. With such an embodiment, the efficiency of the hydraulic system and thus of the work machine is further increased.
  • pre-adjustable preferably refers to the setting of a defined displacement volume for a machine configuration and/or option.
  • pre-adjustable refers to the limitation of the displacement volume to a defined displacement volume range with a defined maximum and/or minimum displacement volume.
  • the object underlying the invention is also achieved with a method for operating an agricultural work machine, preferably a distribution machine, wherein the work machine is designed according to at least one of the above-described preferred embodiments of the agricultural work machine according to the invention.
  • the displacement unit is designed in the manner of an adjustment drive, preferably a variable displacement motor or a variable displacement pump, with an adjustable or variable displacement volume, which is coupled to the blower in a mechanical and force-transmitting manner.
  • an adjustment drive preferably a variable displacement motor or a variable displacement pump
  • an adjustable or variable displacement volume which is coupled to the blower in a mechanical and force-transmitting manner.
  • the displacement unit is Hydraulically driven depending on the set displacement volume. In other words, hydraulic energy is converted into mechanical energy via the displacement unit in an adjustable and/or adaptable manner.
  • the hydraulic system is preferably assigned at least one hydraulic pressure supply device, which is intended for providing and/or supplying at least one hydraulic fluid with at least a first pressure level for the one or more consumers and the displacement unit.
  • the displacement volume of the displacement unit is adjusted to adapt the first pressure level, in particular to a second pressure level, and/or to adapt the drive power of the blower.
  • the displacement volume and/or pressure level is preferably adjusted as needed to the requirements of the blower.
  • the hydraulic system comprises at least one hydraulic line, preferably a hydraulic circuit, which can be connected to the pressure supply device and/or to the displacement unit in a fluid-conducting manner, for the one or more consumers, in particular working units, and/or the at least one blower.
  • the pressure level in the hydraulic line, preferably in the hydraulic circuit, for the one or more consumers, in particular working units is adjusted, preferably increased, to a second pressure level by changing the displacement volume of the displacement unit compared to the first pressure level.
  • the pressure level in the hydraulic line, in particular in the hydraulic circuit, for the one or more consumers, in particular working units can be reduced to a second pressure level by changing the displacement volume of the displacement unit compared to the first pressure level.
  • the work machine preferably comprises at least one share that can be brought into engagement with the ground at an adjustable working pressure and/or at least one boom or machine frame on which several shares are arranged.
  • the working pressure can preferably be adjusted as a share pressure directly on the at least one share and/or as a boom pressure on the boom or machine frame.
  • the working pressure is adjusted by means of the displacement unit, in particular by changing the displacement volume and/or at least almost independently of the drive power for the blower.
  • the first pressure level provided via the pressure supply device is preferably increased, while the displacement volume and/or the second pressure level is adjusted such that the drive power of the blower remains at least almost the same or unchanged.
  • the first pressure level provided via the pressure supply device is reduced or maintained, while the displacement volume and/or the second pressure level is adjusted such that the drive power of the blower increases.
  • At least one distribution material to be spread preferably a distribution material quality and/or distribution material type, is detected and/or selected.
  • the agricultural work machine preferably a distribution machine, is filled with at least one distribution material, in particular with a defined distribution material quality and/or distribution material type.
  • the displacement volume of the displacement unit is set and/or adjusted depending on the at least one, in particular detected, selected and/or filled, distribution material.
  • the displacement volume of the displacement unit is adjusted depending on the distribution result.
  • the displacement volume of the displacement unit is alternatively or additionally set and/or adjusted depending on the travel and/or working speed of the working machine.
  • the agricultural work machine described above is not limited to a distribution machine.
  • the work machine can be designed, for example, as a field sprayer for applying spraying agents or as a spreader for spreading material, such as fertilizer.
  • the fan which is mechanically and/or force-transmittingly coupled to the displacement unit, is preferably designed in the manner of a pump.
  • the fan can alternatively also be designed as a drive or motor for at least one centrifugal disc.
  • Fig.1 shows a schematic hydraulic circuit diagram for an agricultural working machine according to the invention.
  • Fig.1 a schematically indicated hydraulic circuit diagram of a hydraulic system 10, which is intended for an agricultural working machine not shown, can be seen.
  • the working machine can be designed in the manner of a distribution machine, such as a seed drill, a field sprayer or a spreader.
  • the hydraulic system 1 shown comprises, among other things, a pressure supply device 10, which is here assigned, for example, to a tractor that can be coupled to the work machine and is also not shown in the figure.
  • the pressure supply device 10 can also be assigned to the work machine and/or arranged on the work machine.
  • the pressure supply device 10 has a hydraulic pump 11 and a plurality of hydraulic control units 12A-12D, also referred to as tractor control units.
  • the pressure supply device 10 also has a reservoir, referred to as a hydraulic tank 13, for a hydraulic fluid.
  • the pressure supply device 10 is configured, in particular by means of connecting couplings 14A, 14B, to be connected in a fluid-conducting manner to a hydraulic part 20 of the hydraulic system 1 assigned to the work machine.
  • the pressure supply device 10 is configured to provide and/or deliver the hydraulic fluid at a corresponding, in particular first, pressure level.
  • the hydraulic system 1 further comprises one or more hydraulic consumers 21A-21D, which can be actuated and/or operated hydraulically, in particular with the hydraulic fluid.
  • the first consumers 21A, 21B are designed, for example, as hydraulic actuating cylinders.
  • the second consumers 21C, 21D are designed, for example, in the manner of hydraulic motors.
  • the consumers 21A-21D can also be designed in the manner of other agricultural work units, such as sowing units or the like.
  • a sowing unit can also be a sowing coulter or a row unit with an associated and/or hydraulically operated metering and/or placement device.
  • the consumers 21A-21D are each fluidly connected to the pressure supply device 10 via a first hydraulic line 2, through which the hydraulic fluid is supplied at a first pressure level. Furthermore, a further hydraulic control unit 22 is arranged between the first consumers 21A, 21B and the pressure supply device 10, by means of which the first pressure level for the first consumers 21A, 21B can optionally be adjusted and/or limited to a further/different pressure level.
  • the illustrated first consumers 21A, 21B or the actuating cylinders are configured to actuate working units designed as sowing coulters and/or at least one boom on which several sowing coulters are arranged, with a defined working pressure or a defined actuating force, which is dependent on the set pressure level and which can also be referred to as coulter pressure and/or boom pressure.
  • the second consumers 21C, 21D designed here as hydraulic motors, are each configured to operate a dosing and/or depositing device designed as a singling device or, alternatively, other working units.
  • the hydraulic system 1 is provided by means of a displacement unit 30 to drive at least one blower 40 assigned to the work machine.
  • the blower 40 is configured to pneumatically pressurize one or more conveying lines of the work machine and/or to pneumatically convey material to be distributed, for example, from an assigned storage container.
  • the displacement unit 30 is designed in the manner of an adjustment drive, in particular an adjustment motor or an adjustment pump, with an adjustable displacement volume and is coupled to the blower 40 in a mechanical and force-transmitting manner.
  • a torque-transmitting coupling device 31 is provided to connect the displacement unit 30 to the fan 40.
  • the coupling device 31 is designed, for example, in the manner of a drive shaft, which is connected in particular to a rotor arranged in the fan 40.
  • the coupling device 31 can also comprise at least one clutch device and/or a transmission device.
  • the displacement unit 30 is assigned an adjusting device 32, by means of which the displacement volume can be adjusted proportionally, in particular It can be continuously or stepped adjustable. Alternatively or additionally, the displacement can also be adjusted using a two-point adjustment.
  • the adjustment device 32 shown here has a first adjustment means 320, which is designed here, for example, as a hydraulically actuated actuator 320 in the manner of an actuating cylinder or the like and is connected to the displacement unit 30.
  • a second adjustment means 321 which is designed here, for example, as an actuable hydraulic switching and/or control valve.
  • the adjustment device 32 can be actuated manually by an operator and/or automatically by a control and/or regulation system assigned to the work machine.
  • the adjustment device 32 can comprise only one adjustment means 320, 321 or more than two adjustment means 320, 321.
  • the adjustment device 32 can alternatively or additionally comprise at least one adjustment means configured as a threaded screw and/or a stop screw, which is adjustable for adjusting or influencing the displacement. Furthermore, the adjustment device 32 can also comprise at least one adjustment means configured as a replacement part, which is replaceable for adjusting or influencing the displacement. Alternatively or additionally, the adjustment device 32 can also be configured as an electronic adjustment device 32 for electronically adjusting the displacement.
  • the displacement volume of the displacement unit 30 is adjustable to adapt the first pressure level, in particular that provided and/or supplied by the pressure supply device.
  • the first pressure level can thus be adjusted to a second pressure level, in particular one that is increased or decreased compared to the first pressure level, depending on the adjustment of the displacement volume of the displacement unit 30.
  • an adjustment of the displacement volume is provided to set and/or adapt a drive power of the blower 40.
  • the displacement unit 30 is configured to adapt, for example, increase or decrease, the pressure level, in particular the first pressure level, in the hydraulic line 2 for the one or more consumers or working units by means of an adjustment of the displacement volume.
  • the working pressure of the consumers 21 A-21 D for example the coulter pressure of a sowing coulter and/or the boom pressure of a boom, can be adjusted by means of the displacement unit 30, in particular by changing the absorption volume and/or at least almost independently of the drive power for the fan 40.
  • the absorption volume of the displacement unit 30 is alternatively or additionally adjustable depending on the material to be distributed, in particular a quality of the material to be distributed, a type of the material to be distributed and/or a distribution result.
  • the displacement volume of the displacement unit 30 is presettable and/or adjustable depending on a machine configuration of the agricultural work machine.
  • the machine configuration or machine equipment or option can depend on the type and number of hydraulic consumers 21A-21D, in particular the working units, and the blowers 40.
  • the machine configuration can also depend on the number and/or dimensions of the attached and/or connected pneumatic conveying lines, in particular for the distribution material.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizing (AREA)
  • Soil Working Implements (AREA)

Abstract

L'invention concerne une machine agricole comprenant au moins une soufflante (40) pour l'alimentation pneumatique d'une ou de plusieurs conduites de transport et/ou pour le transport de produit à épandre, et un système hydraulique (1) pour l'actionnement et/ou le fonctionnement hydraulique d'un ou de plusieurs consommateurs (21A-21D), le système hydraulique (1) comportant au moins une unité de refoulement hydraulique (30) prévue pour entraîner la soufflante (40). L'objectif de l'invention est de concevoir une machine de travail agricole de sorte que le système hydraulique (1) soit d'une part encore plus simplifié et d'autre part encore plus efficace. À cet effet, l'unité de refoulement (30) est conçue à la manière d'un entraînement à cylindrée variable, de préférence d'un moteur à cylindrée variable ou d'une pompe à cylindrée variable, avec un volume d'absorption réglable, qui est couplé à la soufflante (40) de manière mécanique et en transmettant la force. Cette invention concerne en outre un système hydraulique pour la machine de travail agricole et un procédé pour faire fonctionner une machine de travail agricole.
PCT/EP2024/087273 2024-01-22 2024-12-18 Machine de travail agricole, système hydraulique pour une machine de travail agricole et procédé pour faire fonctionner une machine de travail agricole Pending WO2025157539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024101711.2 2024-01-22
DE102024101711.2A DE102024101711A1 (de) 2024-01-22 2024-01-22 Landwirtschaftliche Arbeitsmaschine, Hydrauliksystem für eine landwirtschaftliche Arbeitsmaschine und Verfahren zum Betreiben einer landwirtschaftlichen Arbeitsmaschine

Publications (1)

Publication Number Publication Date
WO2025157539A1 true WO2025157539A1 (fr) 2025-07-31

Family

ID=94173477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/087273 Pending WO2025157539A1 (fr) 2024-01-22 2024-12-18 Machine de travail agricole, système hydraulique pour une machine de travail agricole et procédé pour faire fonctionner une machine de travail agricole

Country Status (2)

Country Link
DE (1) DE102024101711A1 (fr)
WO (1) WO2025157539A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120074246A1 (en) * 2009-05-29 2012-03-29 Sylvain Bilodeau Spreader with adjustable directional outlet
US20160252109A1 (en) * 2013-10-29 2016-09-01 Raven Industries, Inc. Hydraulic displacement control system
US20210172444A1 (en) * 2019-12-09 2021-06-10 Cnh Industrial America Llc System For Distributing Particulate Material From An Agricultural Machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11834811B2 (en) * 2021-10-25 2023-12-05 Cnh Industrial America Llc System and method for controlling hydraulic pump operation within a work vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120074246A1 (en) * 2009-05-29 2012-03-29 Sylvain Bilodeau Spreader with adjustable directional outlet
US20160252109A1 (en) * 2013-10-29 2016-09-01 Raven Industries, Inc. Hydraulic displacement control system
US20210172444A1 (en) * 2019-12-09 2021-06-10 Cnh Industrial America Llc System For Distributing Particulate Material From An Agricultural Machine

Also Published As

Publication number Publication date
DE102024101711A1 (de) 2025-07-24

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