A suspension module includes a spindle pivotably connected to an axle with a pivot element defining a vertical axis. The spindle has an attachment member and an attachment cap, with outer ends are rigidly interconnected by a pair of lift cylinders. The spindle includes a plate extending between the lift cylinders intermediate the attachment member and cap with the pivot element received between the attachment member and plate. Each lift cylinder has a ram movable within a housing of the lift cylinder. A wheelbox mounts to the wheel and couples with the spindle. First and second strut rods connect the wheelbox with the ram of one of the lift cylinders, and third and fourth strut rods connect the wheelbox with the ram of a second lift cylinder. The strut rods allow the spindle to move relative to the wheelbox while also transferring pivot torque between the wheelbox and the spindle.

A chassis frame including a first section and a second section. The first section includes a top plate having a first thickness, a bottom plate, and a plurality of side plates extending from the top plate to the bottom plate. The second section includes a top plate having a second thickness, a bottom plate, and a plurality of side plates extending from the top plate to the bottom plate. The first section and the second section are joined at least one transition joint. Each transition joint includes a protrusion configured to engage a pocket. Each pocket is defined by angular edges of the top and bottom plates of the first section. Each protrusion defined by angular edges of the top and bottom plates of the second section.

An agricultural sprayer includes a purge tank and first and second nozzles. Furthermore, the system includes a first valve fluidly configured to selectively permit air to flow to the first nozzle and a second valve fluidly configured to selectively permit the air to flow to the second nozzle. A computing system is configured to receive an input indicative of initiation of a purging operation and, upon receipt of the input, control an operation of a main valve to allow the air to flow through a main fluid conduit. Furthermore, the computing system is configured to monitor the air pressure associated with the purge tank and control the operation of the first and second valves during the purging operation based on the monitored air pressure.

Disclosed is an autonomous agricultural carrier vehicle including a frame construction with mounting devices configured to carry and guide at least one agricultural implement; at least two chassis constructions which are mounted on the frame construction; a drive apparatus having a drive train which is coupled to the least two chassis constructions and is configured to specify a driving speed; and a control apparatus and an environment sensor system which is signal-connected and/or signal-connectable to the control apparatus. The chassis constructions are preferably mounted rotatably about at least 90 about vertically oriented axes. Also disclosed is an autonomous agricultural machine in combination with the autonomous agricultural carrier vehicle.

A device for performing autonomous agricultural operations may include a toolbar to which a plurality of implements may be interchangeably coupled, and a pair of parallel chassis beams mounted perpendicularly on the toolbar. At least a portion of each of the chassis beams may be telescopic and configured to be extended outward from, and retracted inward towards, the toolbar. The device may also include a plurality of drive assemblies each mounted on one of the chassis beams, and a plurality of motors corresponding to the drive assemblies and configured to drive the drive assemblies in accordance with one or more drive parameters to move the device throughout a site. The device may further include a computing device configured to automatically determine the drive parameters, and cause the plurality of motors to drive the corresponding drive assemblies in accordance with the drive parameters.

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.

An illustrative embodiment of a dual applicator machine having a dual applicator system may be configured through adding a dry product delivery system to an existing agricultural sprayer having a liquid product delivery system. The dual applicator machine may include a liquid product delivery system and a dry product delivery system that allow each separate system to perform either individually and independently or simultaneously. An illustrative embodiment of a dual applicator machine may be configured as a high-clearance agricultural sprayer having a frame, a cab, and a boom positioned in front of the cab. The dual applicator machine may be configured with liquid product tank(s) and powered by wheels attached to the frame via wheel mounting beams. The dual applicator machine may also include a dry product tank and a dry product meter system in fluid communication with both the dry product tank and a dry product delivery tube.

A vehicle frame having a calibrated frame stiffness gradient is provided by fixedly attaching a series of cladding plates to an external surface of a tubular member of the frame, with the series of cladding plates including at least one immediately preceding cladding plate and one successive cladding plate. The cladding plates have thicknesses and peripheral shapes that are cooperatively configured to provide the desired stiffness gradient in the frame member. A trailing raised bead extending from the last cladding plate in the series along the surface of the frame member provides a further means for achieving the desired stiffness gradient.

A system, apparatus and method for controlling the height of a frame of a self-propelled high ground clearance, agricultural product applicator above a ground surface utilize a trailing link suspension system including an extensible air strut, for connecting ground engaging wheels of the applicator to the frame of the applicator. The trailing arm suspension system includes an upper suspension arm attached to the frame, a lower suspension arm providing sole support of a ground engaging wheel attached to the lower arm, and the extensible air strut interconnected between the upper and lower arms. Height of the applicator above the ground surface is controlled by regulating a flow of pressurized air to the air strut, to thereby control extension of the air strut.

A method of operating a fluid sprayer includes supplying a first fluid selected from a group consisting of larvicide, adulticide, and a barrier repellant to a nozzle assembly at a first regulated pressure. The method further includes changing the first regulated pressure to a second regulated pressure different than the first regulated pressure. The method further includes supplying a second fluid selected from the group to the nozzle assembly at the second regulated pressure.