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WO2019169466A1 - Hydraulic unit used in agricultural sprayers - Google Patents

Hydraulic unit used in agricultural sprayers Download PDF

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Publication number
WO2019169466A1
WO2019169466A1 PCT/BR2019/050070 BR2019050070W WO2019169466A1 WO 2019169466 A1 WO2019169466 A1 WO 2019169466A1 BR 2019050070 W BR2019050070 W BR 2019050070W WO 2019169466 A1 WO2019169466 A1 WO 2019169466A1
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WIPO (PCT)
Prior art keywords
hydraulic
motor
pump
low pressure
pressure line
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Ceased
Application number
PCT/BR2019/050070
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French (fr)
Portuguese (pt)
Inventor
Nivaldo MUNDIN JUNIOR
Nivaldo MUNDIN
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Individual
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Individual
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Publication of WO2019169466A1 publication Critical patent/WO2019169466A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0409—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material the pumps being driven by a hydraulic or a pneumatic fluid
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0003—Atomisers or mist blowers
    • A01M7/0007—Atomisers or mist blowers mounted on a frame and guided by hand; Atomiser barrow
    • A01M7/001—Atomisers or mist blowers mounted on a frame and guided by hand; Atomiser barrow motor-driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0025—Mechanical sprayers
    • A01M7/0032—Pressure sprayers
    • A01M7/0042—Field sprayers, e.g. self-propelled, drawn or tractor-mounted

Definitions

  • the present application for the privilege of invention is aimed at the agricultural sector and deals with a hydraulic sprayer assembly capable of increasing the safety of the spraying process and reducing the maintenance frequency, which will generate savings and increase life. useful equipment in the long run.
  • mechanized agricultural sprayers are machines attached or not to a suitable vehicle and have the function of getting a desired amount of chemical or not to reach the desired location, to control weeds, pests, diseases or application of nutrients via leaf.
  • Figure 1 flow chart demonstrating the hydraulic assembly and the developed closed circuit
  • Figure 2 side view demonstrating a standard that can be adopted when installing hydraulic components on a conventional vehicle and sprayer
  • Figure 3 side view demonstrating a second installation pattern provided on the same conventional vehicle and sprayer.
  • Hydraulic system components are self-contained and easy to install and maintain compared to the cardan system, eliminating many lubrication points as oil-immersed motors and pumps provide significant service life expansion. .
  • the agricultural sprayer hydraulic assembly is originated by a closed circuit where the hydraulic pump (1) is connected to the oil reservoir tank (2) by a low pressure line (2.1) in charge. oil suction, said line having a suction filter (2.2) preferably without bypass, and a hydraulic motor (3) connected to the hydraulic pump (1) by means of high pressure lines (3.1) and a low line pressure (3.2).
  • the connection of the hydraulic motor (3) to the reservoir tank (2), closing the circuit, is contemplated by a low secondary pressure line or breather (3.3) integrated with a heat exchanger (4).
  • the first option (figure 2) allows the hydraulic unit to be installed on the front of the tractor, using the crankshaft's direct shaft at a rotation of at least 1900 RPM to drive the hydraulic pump (1) which moves the motor (3) and fan (5).
  • the second option (figure 3) allows the insertion of the hydraulic unit into the sprayer itself and the hydraulic pump (1), which is responsible for moving the fan (5), in a 1: 4 speed multiplier (6) installed in the power take-off of the unit. tractor at 540 RPM.
  • the first option has the advantage of eliminating the multiplier coupled to the tractor's power take-off, requiring a smaller displacement hydraulic pump.
  • the second option has the advantages of reducing the length of the hoses while reducing the oil pressure drop and releasing the front of the tractor as the hydraulic unit will remain in the sprayer. When the sprayer is uncoupled, the tractor will be able to perform any other activity without hindering its use.
  • both motors can be used, one exclusive to the fan and the second specific to the defensive pump.
  • the hydraulic pump will be responsible for moving the fan belonging to the sprayer.
  • the motors are sized to work with a clearance of 20% and ensure perfect system operation.
  • the current rotation The 2020 RPM fan speed can reach 2300 RPM after the hydraulic assembly is deployed, as its speed can be controlled through a panel in the tractor cab.
  • the engine associated with the pesticide pump can be driven by the tractor's own hydraulic system, which will eliminate the need for one more hydraulic pump in the assembly, making the system cheaper, but there will be the option to insert a second pump. lower proportion to drive this engine if the tractor hydraulic system is not sufficient to drive and maintain it.
  • the hydraulic unit can provide a reservoir tank of approximately 60 liters of oil, which is necessary to meet the flow demand of the pump and fan motor which are preferably piston-type to work at a higher pressure. and generate more power with a reduced amount of oil because the power consumed by the fan is approximately 35hp.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

The present invention patent relates to the agricultural sector and concerns a hydraulic unit designed to increase the safety of the spraying process and to reduce maintenance frequency. The hydraulic unit is based on a closed circuit in which the hydraulic pump (1) is connected to the oil tank (2) by a low-pressure line (2.1), said line having a suction filter (2.2) and a hydraulic motor (3) connected to the hydraulic pump (1) by means of high-pressure lines (3.1) and a low-pressure line (3.2). The connection between the hydraulic motor (3) and the tank (2) is made by a low-pressure or vent line (3.3) built into a heat exchanger (4). The power drawn by the entire hydraulic system is 45 CV when the pesticide pump is working at a maximum pressure of 300 psi.

Description

“CONJUNTO HIDRÁULICO APLICADO EM PULVERIZADORES AGRÍCOLAS” “HYDRAULIC ASSEMBLY APPLIED ON AGRICULTURAL SPRAYERS”

[001] O presente pedido de privilégio de invenção é voltado ao setor agrícola e trata de um conjunto hidráulico para pulverizadores agrícolas apto a aumentar a segurança do processo de pulverização e reduzir a frequência de manutenção, o que irá gerar uma economia e aumento na vida útil dos equipamentos a longo prazo.  [001] The present application for the privilege of invention is aimed at the agricultural sector and deals with a hydraulic sprayer assembly capable of increasing the safety of the spraying process and reducing the maintenance frequency, which will generate savings and increase life. useful equipment in the long run.

[002] Como é sabido, os pulverizadores agrícolas mecanizados são máquinas acopladas ou não a um veículo adequado e tem a função de fazer chegar ao local desejado uma determinada quantidade de substância química ou não, para controle de invasoras, pragas, doenças ou aplicação de nutrientes via foliar.  As is well known, mechanized agricultural sprayers are machines attached or not to a suitable vehicle and have the function of getting a desired amount of chemical or not to reach the desired location, to control weeds, pests, diseases or application of nutrients via leaf.

[003] No conjunto mecanizado atual, são empregadas correias na transmissão da potência ao cardã, acoplado à tomada de força do trator, ao equipamento, ventilador e bomba de defensivos, o que gera ruídos, perda de potência devido à baixa eficiência desse tipo de transmissão além de possibilitar o risco de acidentes graves aos colaboradores pelo fato de o conjunto mecânico permanecer na maioria das vezes exposto.  [003] In the current mechanized assembly, belts are used in the transmission of power to the cardan, coupled to the tractor's power take-off, equipment, fan and pump, which generates noise, power loss due to the low efficiency of this type. transmission as well as allowing the risk of serious accidents to employees due to the fact that the mechanical assembly remains most of the time exposed.

[004] Pensando nisso, foi desenvolvido um conjunto hidráulico onde a bomba de defensivos e o ventilador serão acionados diretamente por motores hidráulicos independentes e com a rotação certa para o tipo de aplicação, o que elimina as correias e as multiplicações de velocidade dos eixos, ou seja, retirando as correias é possível reduzir ou eliminar todos os problemas anteriormente citados sem comprometer o equipamento ou o veículo além de promover maior confiabilidade e segurança.  With this in mind, a hydraulic assembly has been developed where the defensive pump and fan will be driven directly by independent hydraulic motors and with the right rotation for the type of application, which eliminates belts and axle speed multiplications, that is, by removing the belts, it is possible to reduce or eliminate all the aforementioned problems without compromising the equipment or the vehicle and promoting greater reliability and safety.

[005] A descrição que se segue busca destacar a proposta em nível de seu princípio, tendo como referência o seguinte esquema ou fluxograma abaixo listado:  [005] The following description seeks to highlight the proposal at the level of its principle by reference to the following scheme or flow chart listed below:

[006] Figura 1, fluxograma demonstrando o conjunto hidráulico e o circuito fechado desenvolvido; [007] Figura 2, vista lateral demonstrando um padrão que pode ser adotado na instalação dos componentes hidráulicos em um veículo e pulverizador convencionais; [006] Figure 1, flow chart demonstrating the hydraulic assembly and the developed closed circuit; [007] Figure 2, side view demonstrating a standard that can be adopted when installing hydraulic components on a conventional vehicle and sprayer;

[008] Figura 3, vista lateral demonstrando um segundo padrão de instalação disponibilizado no mesmo veículo e pulverizador convencionais.  [008] Figure 3, side view demonstrating a second installation pattern provided on the same conventional vehicle and sprayer.

[009] Os componentes do sistema hidráulico são independentes e de fácil instalação e manutenção, em comparação com o sistema de cardã, eliminando muitos pontos de lubrificação, já que os motores e bombas trabalhão imersos em óleo, proporcionando relevante dilatação da vida útil do conjunto.  [009] Hydraulic system components are self-contained and easy to install and maintain compared to the cardan system, eliminating many lubrication points as oil-immersed motors and pumps provide significant service life expansion. .

[010] Conforme o diagrama da figura 1 , o conjunto hidráulico aplicado em pulverizador agrícola é originado por um circuito fechado onde a bomba hidráulica (1) está vinculada ao tanque reservatório de óleo (2) por uma linha de baixa pressão (2.1) encarregada de succionar o óleo, havendo na referida linha um filtro de sucção (2.2) preferencialmente sem by pass, e um motor hidráulico (3) vinculado à bomba hidráulica (1) por meio de linhas de alta pressão (3.1) e uma linha de baixa pressão (3.2). A ligação do motor hidráulico (3) ao tanque reservatório (2), fechando o circuito, é contemplada por uma linha de baixa pressão secundária ou respiro (3.3) integrada a um trocador de calor (4).  [010] According to the diagram in figure 1, the agricultural sprayer hydraulic assembly is originated by a closed circuit where the hydraulic pump (1) is connected to the oil reservoir tank (2) by a low pressure line (2.1) in charge. oil suction, said line having a suction filter (2.2) preferably without bypass, and a hydraulic motor (3) connected to the hydraulic pump (1) by means of high pressure lines (3.1) and a low line pressure (3.2). The connection of the hydraulic motor (3) to the reservoir tank (2), closing the circuit, is contemplated by a low secondary pressure line or breather (3.3) integrated with a heat exchanger (4).

[011] No padrão de circuito fechado desenvolvido a quantidade de óleo sugada do tanque reservatório (2) pela bomba hidráulica (1) é menor do que a quantidade percorrida nas linhas de alta pressão (3.1) entre bomba e motor. A sucção tem a função apenas de repor o óleo que volta ao tanque através do respiro da bomba e do motor, reduzindo, com isso, a quantidade de óleo necessária no tanque hidráulico e também o dimensionamento do filtro de sucção. O óleo da bomba que parte da linha de baixa pressão (2.1), passa pelo interior do motor (3) mediante a interligação da linha de baixa pressão (3.2), prossegue pela linha de baixa pressão secundária ou respiro (3.3) até o trocador de calor (4) e finaliza seu fluxo no tanque reservatório (2), fechando o ciclo, tem o objetivo de refrigerar o referido motor, trocando mais calor com o ambiente. [012] A pressão de trabalho depende diretamente da rotação do ventilador empregado no pulverizador agrícola, ou seja, quanto maior a rotação, maior será a pressão do óleo. Com uma rotação de 1950 RPM (velocidade semelhante aos atomizadores convencionais) a pressão fica em torno de 160 bar, o que é considerada uma pressão baixa para o sistema hidráulico de circuito fechado, proporcionando uma elevação na vida útil dos componentes hidráulicos (maior que 50.000 horas). [011] In the developed closed loop pattern the amount of oil sucked from the reservoir tank (2) by the hydraulic pump (1) is less than the amount traveled on the high pressure lines (3.1) between pump and motor. Suction only has the function of replacing the oil that returns to the tank through the pump and motor breather, thus reducing the amount of oil required in the hydraulic tank and also the size of the suction filter. Pump oil from the low pressure line (2.1) flows into the engine (3) through the low pressure line (3.2) interconnection, flows through the secondary low pressure line or breather (3.3) to the changer. of heat (4) and finishes its flow in the reservoir tank (2), closing the cycle, has the objective of cooling said motor, exchanging more heat with the environment. [012] Working pressure depends directly on the rotation of the fan used in the agricultural sprayer, ie the higher the rotation, the higher the oil pressure. At a speed of 1950 RPM (speed similar to conventional atomizers) the pressure is around 160 bar, which is considered low pressure for the closed loop hydraulic system, providing an increase in hydraulic component life (greater than 50,000 hours).

[013] Demonstrando o circuito mecanicamente, existem duas opções para instalar o sistema hidráulico. A primeira opção (figura 2) possibilita a instalação da unidade hidráulica na parte frontal do trator, utilizando o eixo direto do virabrequim a uma rotação de, pelo menos, 1900 RPM para acionar a bomba hidráulica (1) a qual se encarrega de movimentar o motor (3) e o ventilador (5). A segunda opção (figura 3) permite a inserção da unidade hidráulica no próprio pulverizador e a bomba hidráulica (1), encarregada de movimentar o ventilador (5), em um multiplicador de velocidade 1 :4 (6) instalado na tomada de força do trator a 540 RPM.  [013] Demonstrating the circuit mechanically, there are two options for installing the hydraulic system. The first option (figure 2) allows the hydraulic unit to be installed on the front of the tractor, using the crankshaft's direct shaft at a rotation of at least 1900 RPM to drive the hydraulic pump (1) which moves the motor (3) and fan (5). The second option (figure 3) allows the insertion of the hydraulic unit into the sprayer itself and the hydraulic pump (1), which is responsible for moving the fan (5), in a 1: 4 speed multiplier (6) installed in the power take-off of the unit. tractor at 540 RPM.

[014] A primeira opção tem como vantagem a eliminação do aparelho multiplicador acoplado na tomada de força do trator, necessitando de uma bomba hidráulica de menor deslocamento. A segunda opção traz como vantagens a redução no comprimento das mangueiras, reduzindo simultaneamente a perda de carga do óleo, e libera a parte frontal do trator uma vez que a unidade hidráulica irá permanecer no pulverizador. Quando o pulverizador for desacoplado, o trator estará apto a realizar qualquer outra atividade sem haver empecilhos quanto ao seu uso.  [014] The first option has the advantage of eliminating the multiplier coupled to the tractor's power take-off, requiring a smaller displacement hydraulic pump. The second option has the advantages of reducing the length of the hoses while reducing the oil pressure drop and releasing the front of the tractor as the hydraulic unit will remain in the sprayer. When the sprayer is uncoupled, the tractor will be able to perform any other activity without hindering its use.

[015] Nas duas opções podem ser utilizados dois motores, sendo um exclusivo ao ventilador e o segundo específico à bomba de defensivos. A bomba hidráulica será responsável por movimentar o ventilador pertencente ao pulverizador. Os motores são dimensionados para trabalhar com uma folga de 20% e garantir um perfeito funcionamento do sistema. Além disso, a rotação atual de 2020 RPM do ventilador pode alcançar os 2300 RPM após a implantação do conjunto hidráulico, pois sua velocidade pode ser controlada, através de um painel, na cabine do trator. [015] In both options two motors can be used, one exclusive to the fan and the second specific to the defensive pump. The hydraulic pump will be responsible for moving the fan belonging to the sprayer. The motors are sized to work with a clearance of 20% and ensure perfect system operation. In addition, the current rotation The 2020 RPM fan speed can reach 2300 RPM after the hydraulic assembly is deployed, as its speed can be controlled through a panel in the tractor cab.

[016] O motor associado à bomba de defensivos pode ser acionado pelo próprio sistema hidráulico do trator, o que irá eliminar a necessidade de mais uma bomba hidráulica no conjunto, deixando o sistema mais barato, porém haverá a opção de ser inserida uma segunda bomba de proporção menor no acionamento desse motor caso o sistema hidráulico do trator não seja suficiente para acioná-lo e mantê-lo. Referindo-se à unidade hidráulica, esta pode disponibilizar um tanque reservatório de aproximadamente 60 litros de óleo, quantidade necessária para suprir a demanda de vazão da bomba e motor do ventilador os quais são preferencialmente do tipo pistão a fim de trabalhar a uma pressão mais alta e gerar mais potência com uma quantidade de óleo reduzida, pois a potência consumida pelo ventilador é de aproximadamente 35 CV.  [016] The engine associated with the pesticide pump can be driven by the tractor's own hydraulic system, which will eliminate the need for one more hydraulic pump in the assembly, making the system cheaper, but there will be the option to insert a second pump. lower proportion to drive this engine if the tractor hydraulic system is not sufficient to drive and maintain it. Referring to the hydraulic unit, it can provide a reservoir tank of approximately 60 liters of oil, which is necessary to meet the flow demand of the pump and fan motor which are preferably piston-type to work at a higher pressure. and generate more power with a reduced amount of oil because the power consumed by the fan is approximately 35hp.

[017] A potência consumida por todo o sistema hidráulico será de, no máximo, 45 CV em circunstância de a bomba de defensivos trabalhar em pressão máxima de 300 psi (20,68 bar). Por fim, existe a opção de incrementar o conjunto com componentes eletrónicos, que podem monitorar e controlar a velocidade do ventilador, deixando o sistema cada vez mais autónomo.  [017] The power consumed by the entire hydraulic system will be a maximum of 45hp as the pesticide pump operates at a maximum pressure of 300 psi (20.68 bar). Finally, there is the option to upgrade the set with electronic components that can monitor and control fan speed, making the system increasingly autonomous.

[018] Mediante à inovação desenvolvida a qual preenche tais requisitos de princípios e características singulares em relação aos métodos existentes no estado da técnica, o presente pedido de privilégio de invenção certamente reúne as condições necessárias para alcançar a concessão pleiteada.  [018] By means of the developed innovation which fulfills such requirements of unique principles and characteristics in relation to methods existing in the state of the art, the present application for the privilege of invention certainly fulfills the necessary conditions to achieve the claimed concession.

Claims

REIVINDICAÇÕES 1-“CONJUNTO HIDRÁULICO APLICADO EM PULVERIZADORES AGRÍCOLAS”, CARACTERIZADO por o referido conjunto hidráulico ser originado por um circuito fechado onde a bomba hidráulica (1) está vinculada ao tanque reservatório de óleo (2) por uma linha de baixa pressão (2.1) encarregada de succionar o óleo, havendo na referida linha um filtro de sucção (2.2) sem bypass, e um motor hidráulico (3) vinculado à bomba hidráulica (1) por meio de linhas de alta pressão (3.1) e uma linha de baixa pressão (3.2), estando o motor hidráulico (3) ligado ao tanque reservatório (2) por uma linha de baixa pressão ou respiro (3.3) integrada a um trocador de calor (4);  1- “HYDRAULIC ASSEMBLY APPLIED ON AGRICULTURAL SPRAYERS”, characterized in that said hydraulic assembly originates from a closed circuit where the hydraulic pump (1) is connected to the oil reservoir tank (2) by a low pressure line (2.1) in charge. oil suction, having in that line a suction filter (2.2) without bypass, and a hydraulic motor (3) connected to the hydraulic pump (1) by means of high pressure lines (3.1) and a low pressure line ( 3.2), the hydraulic motor (3) being connected to the reservoir tank (2) by a low pressure line or breather (3.3) integrated with a heat exchanger (4); 2-“CONJUNTO HIDRÁULICO APLICADO EM PULVERIZADORES AGRÍCOLAS”, de acordo com a reivindicação 1, CARACTERIZADO por a quantidade de óleo sugada do tanque reservatório (2) pela bomba hidráulica (1) ser menor do que a quantidade percorrida nas linhas de alta pressão (3.1) entre bomba e motor, passando o óleo, que parte da linha de baixa pressão (2.1), no interior do motor (3) mediante a interligação da linha de baixa pressão (3.2), prossegue pela linha de baixa pressão secundária ou respiro (3.3) até o trocador de calor (4) e finaliza seu fluxo no tanque reservatório (2) após refrigerar o referido motor, fechando o ciclo;  2. "HYDRAULIC ASSEMBLY APPLIED TO AGRICULTURAL SPRAYERS" according to claim 1, characterized in that the amount of oil sucked from the reservoir tank (2) by the hydraulic pump (1) is less than the amount traveled on the high pressure lines ( 3.1) between pump and motor, passing the oil, which starts from the low pressure line (2.1), inside the motor (3) through the interconnection of the low pressure line (3.2), proceeds through the secondary low pressure line or vent (3.3) to the heat exchanger (4) and finishes its flow in the reservoir tank (2) after cooling said motor, closing the cycle; 3-“CONJUNTO HIDRÁULICO APLICADO EM PULVERIZADORES AGRÍCOLAS”, conforme as reivindicações 1 e 2, CARACTERIZADO por a instalação da unidade hidráulica ser parte frontal do trator, utilizando o eixo direto do virabrequim a uma rotação de, pelo menos, 1900 RPM para acionamento da bomba hidráulica (1) a qual se encarrega de movimentar o motor (3) e o ventilador (5) ou ser inserida a unidade hidráulica no próprio pulverizador e a bomba hidráulica (1), encarregada de movimentar o ventilador (5), em um multiplicador de velocidade 1 :4 (6) instalado na tomada de força do trator a 540 RPM.  3. "HYDRAULIC ASSEMBLY APPLIED TO AGRICULTURAL SPRAYERS", according to claims 1 and 2, characterized in that the installation of the hydraulic unit is the front of the tractor, using the crankshaft direct shaft at a rotation of at least 1900 RPM to drive the hydraulic pump (1) which moves the motor (3) and the fan (5) or the hydraulic unit is inserted into the sprayer itself and the hydraulic pump (1) which moves the fan (5) in a 1: 4 speed multiplier (6) installed on tractor power take-off at 540 RPM.
PCT/BR2019/050070 2018-03-07 2019-03-07 Hydraulic unit used in agricultural sprayers Ceased WO2019169466A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRBR1020180045709 2018-03-07
BR102018004570-9A BR102018004570B1 (en) 2018-03-07 2018-03-07 HYDRAULIC ASSEMBLY APPLIED IN AGRICULTURAL SPRAYERS

Publications (1)

Publication Number Publication Date
WO2019169466A1 true WO2019169466A1 (en) 2019-09-12

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PCT/BR2019/050070 Ceased WO2019169466A1 (en) 2018-03-07 2019-03-07 Hydraulic unit used in agricultural sprayers

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BR (1) BR102018004570B1 (en)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373669A (en) * 1980-11-28 1983-02-15 International Harvester Co. Hydraulic drive for an agricultural sprayer
US6116006A (en) * 1999-05-27 2000-09-12 Deere & Company Hydraulic system for a detachable implement
US20120266981A1 (en) * 2011-04-21 2012-10-25 Equipment Technologies, Inc. Hydraulic reservoir assembly for a crop sprayer
BR102013024755A2 (en) * 2012-09-28 2015-08-11 Deere & Co Trailed sprayer, towed implement, and method for operating a hydraulically driven pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373669A (en) * 1980-11-28 1983-02-15 International Harvester Co. Hydraulic drive for an agricultural sprayer
US6116006A (en) * 1999-05-27 2000-09-12 Deere & Company Hydraulic system for a detachable implement
US20120266981A1 (en) * 2011-04-21 2012-10-25 Equipment Technologies, Inc. Hydraulic reservoir assembly for a crop sprayer
BR102013024755A2 (en) * 2012-09-28 2015-08-11 Deere & Co Trailed sprayer, towed implement, and method for operating a hydraulically driven pump

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BR102018004570B1 (en) 2023-01-31

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