Patent ID: 11932231
Assignee: CNH INDUSTRIAL AMERICA LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  A  E  F  G | IPC A  B  E  G

Claim 14:
15. A system for purging nozzles of an agricultural sprayer, the system comprising:
a pressurized air source;
a main fluid conduit fluidly coupled to the pressurized air source;
a main valve configured to selectively permit air from the pressurized air source to flow through the main fluid conduit;
first and second nozzles configured to dispense an agricultural fluid onto an underlying field;
first and second fluid conduits fluidly coupled to the first and second nozzles, respectively;
a first valve fluidly coupled between the main fluid conduit and the first fluid conduit, the first valve configured to selectively permit the air from the main fluid conduit to flow to the first nozzle;
a second valve fluidly coupled between the main fluid conduit and the second fluid conduit, the second valve configured to selectively permit the air from the main fluid conduit to flow to the second nozzle;
a pressure sensor configured to capture data indicative of an air pressure associated with the pressurized air source; and
a computing system communicatively coupled to the pressure sensor, the computing system configured to:
receive an input indicative of initiation of a purging operation to purge the agricultural fluid present within the first and second nozzles;
upon receipt of the input, control an operation of the main valve such that the main valve is moved to an opened position to allow the air to flow through the main fluid conduit;
monitor the air pressure associated with the pressurized air source based on the data captured by the pressure sensor;
control an operation of the first valve such that the first valve is moved to an opened position to purge the agricultural fluid present within the first nozzle;
after moving the first valve to the opened position, compare the monitored air pressure to a minimum pressure value; and
when the monitored air pressure exceeds the minimum pressure value, control the operation of the second valve such that the second valve is moved to an opened position to purge the agricultural fluid present within the second nozzle.