An arrangement for spraying a fluid to a piece of material, such as a web or strip, has a chamber through which the material runs, and an applicator (15) which is configured to spray the fluid on the material. The applicator includes at least a first and a second valve (16, 16a, 16b, 16c) arranged within the chamber, each valve having a longitudinal axis, and each valve comprising a spray nozzle (17, 17a, 17b, 17c). Each spray nozzle has an elongated opening extending along an axis. The longitudinal axis of the valve and the axis of the corresponding nozzle span a plane and the at least said first valve and said second valve are arranged spaced on a common axis (CA) running through a center point of each valve. The plane is inclined in relation to the common axis.

A foldable rear boom section of an agricultural product applicator includes at least one first tube connected to a first end of a respective at least one second tube and a hinge assembly coupled to the first and second tubes and configured to pivot the second tube with respect to the first tube about a pivot axis. Further, a nozzle is connected to a second end of the second tube. Pivoting the first and second tubes about the pivot axis causes the foldable rear boom section and the nozzle to transition between an extended position and a retracted position.

The invention relates to a method for the application of spray liquid containing plant protection agents onto rows of plants with an agricultural spraying device comprising groups of spray nozzles, wherein the groups of spray nozzles and the spray nozzles of each group are spaced apart from one another perpendicular to a travel path of the agricultural spraying device that extends parallel to the rows of plants. The method comprises the following steps: selecting at least one spray nozzle each from at least some of the groups of spray nozzles by means of control signals of a control unit to control the spray nozzles; applying spray liquid with the selected spray nozzles onto one row of plants each; the spray liquid being applied from the selected spray nozzles as strip application in the form of respective strips in which the application of the spray liquid does not overlap within a nominal spray angle of directly adjacent spray nozzles of the selected spray nozzles. The invention furthermore relates to an agricultural spraying device embodied to carry out the method according to the invention and a corresponding computer-readable medium.

A system for spraying plants comprises a location-determining receiver for estimating a position of a sprayer with respect to one or more rows of plants. A distance sensor is arranged to measure a distance between a nozzle assembly and a plant row segment. A guidance module is adapted to align the nozzle assembly with a target path between the rows of plants, such as a centered path between the rows, or offset between the rows of the plants. A first nozzle is targeted toward a first zone with respect to the plant row segment based on a first spray pattern of the first nozzle. A second nozzle is targeted toward a second zone with respect to the plant row segment based on a second spray pattern of the second nozzle. A nozzle selection module for selecting automatically a first nozzle or a second nozzle based on maximum coverage of a target zone around the plant segment based on the first zone, the second zone, and the measured distance.

A liquid spraying system having an elongated liquid supply boom and a plurality of spray nozzle assemblies. The spray nozzle assemblies have a compact design with a nozzle body having a liquid inlet and a first spray nozzle carrying liquid outlet section on opposite upper and lower sides, second and third spray nozzle carrying liquid outlet sections disposed in transverse relation to the supply boom; and first and second check valve supporting sections disposed parallel to the liquid supply boom. A first of check valves is operable for controlling liquid flow from the supply boom to one or both of the second and third spray nozzles, and a second check valve is operable for controlling liquid flow from said liquid inlet to said first spray nozzle. The illustrated check valves are operable in response to the pressure of the supply liquid.

A system for an agricultural vehicle can include a nozzle assembly positioned along a boom assembly. A position sensor can be associated with the boom assembly. A field sensor can be associated with the nozzle assembly. A computing system can be operably coupled with the nozzle assembly, the position sensor, and the field sensor. The computing system can be configured to detect a target within a field based on data from the field sensor, determine a boom deflection model based on data from the position sensor, and activate the nozzle assembly to apply an agricultural product to the target at a first flow rate based on the boom deflection model. The first flow rate is varied from a nominal flow rate when the boom assembly is deflected.

A system for applying fluid to an agricultural field includes a fluid source, a plurality of nozzles connected in fluid communication with the fluid source, and a plurality of electrically actuated valves configured to control fluid flow through the plurality of nozzles. The plurality of electrically actuated valves are divided into a plurality of groups. The system also includes a plurality of section control valves. Each section control valve is connected in fluid communication between the fluid source and a corresponding one of the groups of electrically actuated valves. Each section control valve is positionable to adjust a flow coefficient of the section control valve. The system further includes a controller configured to control the position of each section control valve to provide a predetermined flow coefficient for each section control valve based on a predetermined fluid pressure for the corresponding group of electrically actuated valves.

An improvement to a roadside sprayer fixates spray nozzles on a registration plate. The registration plate may include integral tabs depending on the application. Inclination of the tabs is adjustable to place streams and droplets in a desired swath coverage. With the nozzles rigidly mounted onto the plate, the entire plate is notated. The use of the registration plate in a spray unit creates a uniform nutation among the nozzles, thereby reducing variability in droplet placement, and providing a more predictable spray from the nozzles. In other embodiments, the spray unit is utilized in a spray system adaptable to service vehicles, and may be utilized in conjunction with a vegetation engagement device, such as a cutter to engage multiple zones of a roadway right-of-way. Additionally, an improved spray unit includes an electromagnetic field and an attractor to generate plate motion.

An herbicide spreader is capable of changing a spreading width of an herbicide. The herbicide spreader includes: a pair of upper shafts facing with a predetermined interval therebetween in a front and rear direction; a pair of side frames on left and right sides of both the upper shafts; a pair of operation handles connected to both side frames; a spray nozzle mounted to the upper shafts; wheels mounted to both side frames; and a cover sheet for covering portions of a frame main body formed with the pair of upper shafts and both side frames except the bottom. The side frames and the operation handles are rotatably connected to the upper shafts, and opening and closing angle between the left and right side frames is variable and adjusted by operating the pair of operation handles in a direction for bringing them close to or away from each other.

An automated apparatus, method and system for projecting a control agent toward a recognised target for the purposes of agricultural cultivation or environmental management or various other applications; a source of the control agent adapted for use in connection with an environmental control function, an outlet incorporating at least one outlet orifice to direct the control agent emanating from the outlet orifice toward a target. An activation means is movable between an operative mode and an inoperative mode in which the outlet is effectively closed. A targeting mechanism movable on at least one independent control axis provided for selectively orienting the outlet orifice and thereby orienting the control agent in the operative mode. A first sensing system, a classification system, a control system in accordance with a predetermined control logic adapted to deliver doses of the control agent to the identified targets for the purposes of the environmental control function.