A variable-rate spraying nozzle device includes a chemical supply assembly and an atomization spray assembly for atomizing and spraying a chemical solution. The atomization spray assembly includes spray housings arranged sequentially from top to bottom, chemical solution channels are provided between two adjacent spray housings, and the spray housings are assembled together to form an inverted tapered exterior structure; spray holes are densely and circumferentially provided in each spray housing; spray housings are connected with an atomization power mechanism including atomization rotation shafts and a power mechanism including motors and transmission mechanisms for connecting main spindles of the motors with the atomization rotation shafts correspondingly; the atomization rotation shafts in the atomization power mechanism corresponding to the spray housings are coaxially disposed; the motors in the atomization power mechanism are connected with a speed control module.

A composition for forming an aerosol, an aerosol sprayer for insect pest mating disruption, and a method for insect pest mating disruption, thereby reducing disadvantageous effects caused by falling to a ground surface and oxidative decomposition of the sprayed particles. More specifically, the composition including an aerosol stock solution containing an aliphatic linear aldehyde having 10 to 20 carbon atoms and a non-alcoholic diluent, and a propellant, wherein a weight ratio of the aerosol stock solution to the propellant is from 45:55 to 65:35; the sprayer including the composition and a pressure resistant container for enclosing the composition therein, wherein sprayed particles at a spray travel distance of 15 cm have a median particle size (Dv50) at 25° C. of from 35 to 65 μm by a volume-based cumulative particle size distribution and; the method using the aerosol sprayer; and the like.

A steam sprayer for delivering steam onto and beneath a field surface is provided. The steam sprayer comprises a support frame having a plurality of steam spraying nozzles mounted thereto and oriented substantially downwardly for spraying steam onto and beneath the field surface. At least a steam generator is connected to the steam spraying nozzles for providing steam thereto. A water heating tank is connected to each of the at least a steam generator for providing heated water at a substantially constant pressure thereto, Compressed air is provided to the water heating tank for pressurizing the water heating tank. Power is provided to the water heating tank and each of the at least a steam generator.

A twin-fluid atomized aerial spray system and method of aerial spraying includes flying an atomized spray delivery system with an unmanned aerial system. The atomized spray delivery system includes a first fluid delivery path, a second fluid delivery path and a spray nozzle. The first fluid delivery path has a liquid tank and the second fluid delivery path has a compressed gas tank, wherein the first and second fluid delivery paths deliver respective fluids to the spray nozzle. Liquid from the liquid tank is atomized with compressed gas from the compressed gas tank at the spray nozzle and delivers the atomized spray from the spray nozzle.

A system includes a plurality of nozzle assemblies connected in fluid communication with a fluid supply line, a plurality of electrically actuated valve assemblies to control fluid flow through the nozzle assemblies, and a controller communicatively connected to the valve assemblies and configured to control at least one operating parameter of each valve assembly. A portable electronic device is connected in communication with the controller, and is configured to display an image including at least a portion of the system and a target, and to receive a user input that identifies a location and/or an orientation of each of the plurality of nozzle assemblies on the image. At least one of the controller and the portable electronic device is configured to determine the at least one operating parameter based on an overlap amount between a spray path projection of each nozzle assembly and the target in the image.

A software process for controlling a configurable UAV that includes a plurality of databases of crop plants, herbicides, insecticides and weeds. An area is defined to be treated. Thereafter, a scout UAV with an on-board camera is flown over the pre-defined area. Images detected by the camera are compared with the crop, pest and weed databases to respectively identify the crop plants, insects, and weeds. The insects and weeds are then subjected to a spot blast of pesticide/herbicide to kill them. Thus, the process results in a more efficient application of treatment chemicals which leads to less adverse environmental impacts associated with the use of pesticides and herbicides.

A robotic orchard spraying system having autonomous delivery vehicles (ADV), each autonomously delivering an amount of a premixed solution over a non-overlapping path verified by a forward-looking sensor, video, or both. Also, a mobile control center, configured to wireles sly inform the autonomous delivery vehicle of the path within the areas and to confirm that the autonomous delivery vehicle is following the path within the area. Additionally, a mapper vehicle generates the path within the area, the mapper vehicle being configured to communicate information about the path and the area to the command center. The mapper vehicle senses the path with a forward-looking LiDAR sensor, and senses the area with a GPS sensor. Moreover, a nurse truck has a reservoir of premixed solution for replenishing a tank of the ADV. ADVs and the control center communicate over a radio network, which may be a mesh network, a cellular network, or both.

The purpose of the present disclosure is to provide a method for application of products in liquid or semiliquid state, such as chemicals for agricultural use and the like, using a rotating atomizer device, in such a way that the drops shall fall downwards in the form of fog over the crops due to the action of the force caused by its mass and gravity, in addition to the eventual momentum that centrifugal effect of the rotating parties that generate the drops may provide, wherein the method includes the following steps: individually regulate the voltage for the speed of the engines of each rotating atomizer device, modifying the parameter of the power supply of the engine to ensure that the speed of each rotating atomizer device is the correct one, measure the speed of the engine under its control and correct any deviation or separation from the programmed operating values.

A method and an apparatus for the delivering of liquid mixtures of phytosanitary products is disclosed, equipped with a pneumatic liquid mixture atomization system which includes a fan for generating a carrier airflow through at least one diffuser with a conduit tapering towards a reduced section, and at least one delivery nozzle of the liquid mixture within the diffuser. The nozzle is provided with a delivery end arranged in a first delivery position within the airflow near to the reduced section and at least a second delivery position located downstream of the reduced section, where the airflow has a lower speed compared to the first position, and a controller selecting the first delivery position and the at least a second delivery position alternatively depending on a desired condition of reduction of drift effect the droplets of phytosanitary liquid.

A device for dispersing in the air in the vapor state and a substance that is in the liquid state at ambient temperature, and is contained in a storage container, has a ventilation system with a duct that opens out into the open air and is configured to permit the passage of a flow of air into the duct; at least one dispensing unit is designed to be supplied with a liquid substance by the storage container, the dispensing unit having micro-ducts forming an outlet is provided in the duct in order to constitute an area of evaporation of the substance therein, and a heating unit is provided on or in the dispensing unit, such as to control a flow of the substance through the dispensing unit.