Cleaning system for an agricultural sprayer

Patent metadata

Field	Value
Publication number	US-11904830-B2
Application number	US-202117353963-A
Country	US
Kind code	B2
Filing date	Jun 22, 2021
Priority date	Feb 22, 2021
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A cleaning system for an agricultural sprayer may include a sprayer boom, a plurality of nozzle assemblies provided in association with the sprayer boom and configured to dispense an agricultural product during a spraying operation of the agricultural sprayer, a first cleaning fluid tank configured to hold a first cleaning fluid, and a nozzle assembly fluid circuit fluidly coupling the plurality of nozzle assemblies and the first cleaning fluid tank. Moreover, the cleaning system may include a cleaning station supported on the sprayer boom, the cleaning station comprising a first valve. Additionally, the cleaning system may include a first cleaning fluid circuit fluidly coupling the first valve and the first cleaning fluid tank. The first valve is configured to supply the first cleaning fluid therethrough when the first valve is in an open position.

First claim

What is claimed is:

1. A cleaning system for an agricultural sprayer, the system comprising:
a sprayer boom;
a plurality of nozzle assemblies provided in association with the sprayer boom, the plurality of nozzle assemblies being configured to dispense an agricultural product during a spraying operation of the agricultural sprayer;
a first cleaning fluid tank configured to hold a first cleaning fluid;
a nozzle assembly fluid circuit fluidly coupling the plurality of nozzle assemblies and the first cleaning fluid tank;
a cleaning station supported on the sprayer boom, the cleaning station comprising a first valve; and
a first cleaning fluid circuit fluidly coupling the first valve and the first cleaning fluid tank, the first cleaning fluid circuit being coupled in parallel with the nozzle assembly fluid circuit to the first cleaning fluid tank,
wherein the first valve is configured to supply the first cleaning fluid therethrough when the first valve is in an open position to dispense the first cleaning fluid at the cleaning station.

2. The system of claim 1 , wherein the first cleaning fluid comprises compressed air.

3. The system of claim 1 , wherein the cleaning station further comprises a first pressure regulator that is adjustable to vary a pressure of the first cleaning fluid supplied through the first cleaning fluid circuit.

4. The system of claim 1 , wherein the first valve comprises a spring-loaded valve having a tip and a spring, the tip being movable between a first position associated with the open position of the first valve and a second position associated with a closed position of the first valve, the spring biasing the tip towards the second position, the first valve being in the open position when the tip is moved against the bias of the spring into the first position.

5. The system of claim 1 , wherein the first cleaning fluid tank is a water tank supported on the agricultural sprayer, the first cleaning fluid comprising water from the water tank.

6. The system of claim 5 , further comprising a pump operable to increase a pressure of the water supplied through the first cleaning fluid circuit,
wherein the cleaning station further comprises a pressure regulator adjustable to vary a pressure of the water supplied through the first cleaning fluid circuit.

7. The system of claim 1 , wherein each of the plurality of nozzle assemblies includes a detachable spray nozzle that is detachable from the respective one of the plurality of nozzle assemblies, the first cleaning fluid being supplied by the first valve for cleaning the spray nozzle detached from a given nozzle assembly of the plurality of nozzle assemblies, the first cleaning fluid being different than the agricultural product.

8. The system of claim 1 , further comprising:
a second cleaning fluid tank configured to hold a second cleaning fluid; and
a second cleaning fluid circuit,
wherein the cleaning station further comprises a second valve fluidly coupled to the second cleaning fluid tank by the second cleaning fluid circuit, and
wherein the second valve is configured to supply the second cleaning fluid therethrough when the second valve is in an open position to dispense the second cleaning fluid at the cleaning station.

9. The system of claim 8 , wherein the first cleaning fluid comprises compressed air, and
wherein the second cleaning fluid tank is a water tank supported on the agricultural sprayer, the second cleaning fluid comprising water from the water tank.

10. The system of claim 8 , wherein each of the plurality of nozzle assemblies includes a detachable spray nozzle that is detachable from the respective one of the plurality of nozzle assemblies, the second cleaning fluid being supplied by the second valve for cleaning the spray nozzle detached from a given spray nozzle of the plurality of nozzle assemblies, the second cleaning fluid being different than the first cleaning fluid and the agricultural product.

11. The system of claim 1 , wherein the cleaning station further comprises a housing, the first valve being at least partially received within the housing.

12. An agricultural sprayer, comprising:
a sprayer boom;
a plurality of nozzle assemblies provided in association with the sprayer boom, the plurality of nozzle assemblies being configured to dispense an agricultural product during a spraying operation of the agricultural sprayer;
a compressed air supply configured to provide compressed air;
a cleaning station supported on the agricultural sprayer, the cleaning station comprising a compressed air valve; and
a cleaning air circuit fluidly coupling the compressed air valve and the compressed air supply,
wherein the compressed air valve is configured to supply compressed air therethrough when the compressed air valve is in an open position to dispense the compressed air at the cleaning station.

13. The agricultural sprayer of claim 12 , wherein the cleaning station is supported on the sprayer boom.

14. The agricultural sprayer of claim 12 , further comprising a nozzle assembly compressed air circuit fluidly coupling the plurality of nozzle assemblies and the compressed air supply, the nozzle assembly compressed air circuit being coupled in parallel with the cleaning air circuit to the compressed air supply.

15. The agricultural sprayer of claim 12 , wherein the cleaning station further comprises a first pressure regulator that is adjustable to vary a pressure of the compressed air supplied through the cleaning air circuit.

16. The agricultural sprayer of claim 12 , further comprising:
a cleaning fluid tank configured to hold a cleaning fluid; and
a cleaning fluid circuit,
wherein the cleaning station further comprises a second valve fluidly coupled to the cleaning fluid tank by the cleaning fluid circuit, and
wherein the second valve is configured to supply the cleaning fluid when the second valve is in an open position.

17. The agricultural sprayer of claim 16 , wherein the cleaning fluid tank is a water tank supported on the agricultural sprayer, the cleaning fluid comprising water from the water tank.

18. The agricultural sprayer of claim 17 , further comprising a pump operable to increase a pressure of the water supplied through the cleaning fluid circuit,
wherein the cleaning station further comprises a pressure regulator that is adjustable to vary a pressure of the water supplied through the cleaning fluid circuit.

19. The agricultural sprayer of claim 12 , wherein the cleaning station further comprises a housing, the compressed air valve being at least partially received within the housing.

20. A cleaning station for an agricultural sprayer having a sprayer boom and a plurality of nozzle assemblies supported on the sprayer boom, the cleaning station comprising:
a housing defining an interior volume;
a first valve at least partially received within the interior volume of the housing, the first valve configured to be fluidly coupled to a compressed air source via a cleaning air circuit, the first valve being configured to supply compressed air from the compressed air source therethrough when in an open position to dispense the compressed air at the cleaning station;
a second valve at least partially received within the interior volume of the housing, the second valve configured to be fluidly coupled to a cleaning fluid source via a cleaning fluid circuit, the second valve being configured to supply cleaning fluid from the cleaning fluid source therethrough when in an open position to dispense the cl

Assignees

• Cnh Ind America Llc

Inventors

• Moen Richard Arden
• Roach William A
• Hammer Kevin
• Honermann John Paul

Classifications

• B60W10/103 Primary

  of fluid type · CPC title

• A01B59/002

  Details, component parts · CPC title

• A01C23/007

  Metering or regulating systems · CPC title

• A01C23/008

  Tanks, chassis or related parts · CPC title

• A01C23/047

  Spraying of liquid fertilisers · CPC title