A sprayer control system includes a plurality of smart nozzles each having at least one control valve with a valve operator, an electronic control unit for the valve operator, and one or more spray nozzles. The at least one control valve and the ECU control a flow rate of liquid agricultural product through the nozzles. A duty cycle modulator is in communication with the ECU and generates an applied duty cycle for the at least one control valve. The duty cycle modulator includes a specified duty cycle input having a specified duty cycle and a pressure monitor associated with the at least one control valve. A pressure comparator compares the valve pressure determined with the pressure monitor with a system pressure and generates a pressure error. An applied duty cycle generator generates the applied duty cycle based on the specified duty cycle modified by the pressure error.

An apparatus and method are provided for expelling a fluid, including vapor and liquid sprays. A spray is expelled at high velocities from a heated chamber via an exit valve. The chamber includes a flow member or structure that directs and controls the flow of the fluid from an inlet orifice to an outlet orifice along a non-linear path. This prevents the liquid from moving in a wave motion within the chamber if the apparatus is moved.

An apparatus and method are provided for expelling a fluid, including vapor and liquid sprays. A spray is expelled at high velocities from a heated chamber via an exit valve. The chamber includes a flow member or structure that directs and controls the flow of the fluid from an inlet orifice to an outlet orifice along a non-linear path. This prevents the liquid from moving in a wave motion within the chamber if the apparatus is moved.

A nozzle include a first portion, a second portion joined to the first portion, and a third portion joined to the second portion. The first portion includes a first inner wall surface and a first flow channel including a first inlet and a first outlet. The second portion includes a second inner wall surface and a second flow channel including a second inlet having an inner diameter less than an inner diameter of the first outlet and a second outlet. The third portion includes a third inner wall surface and a third flow channel including a third inlet having an inner diameter greater than the inner diameter of the second outlet and a third outlet. The third flow channel includes a diameter-decreasing section having an inner diameter that gradually decreases and a straight section having an inner diameter less than the inner diameter of the second outlet and constant.

A fluidic oscillator, comprising an oscillator body comprising an exterior surface; an interior surface defining a three-dimensional space therein; a fluid inlet; and a fluid outlet, wherein the three-dimensional space, the fluid inlet, and the fluid outlet are in flow communication, the three-dimensional space comprises a first fluid interaction region fluidly coupled to a first pair of feedback flow paths, and a second fluid interaction region fluidly coupled to a second pair of feedback flow paths, and wherein the first and second fluid interaction regions intersect.

A fluidic oscillator, comprising an oscillator body comprising an exterior surface; an interior surface defining a three-dimensional space therein; a fluid inlet; and a fluid outlet, wherein the three-dimensional space, the fluid inlet, and the fluid outlet are in flow communication, the three-dimensional space comprises a first fluid interaction region fluidly coupled to a first pair of feedback flow paths, and a second fluid interaction region fluidly coupled to a second pair of feedback flow paths, and wherein the first and second fluid interaction regions intersect.

A showerhead assembly including a first fluid dispensing unit including a plurality of first fluidic devices, and a second fluid dispensing unit removably coupled to the first fluid dispensing unit and including a plurality of second fluidic devices. The first fluidic devices and the second fluidic devices each provide a multi-dimensional spray pattern.

A showerhead assembly including a first fluid dispensing unit including a plurality of first fluidic devices, and a second fluid dispensing unit removably coupled to the first fluid dispensing unit and including a plurality of second fluidic devices. The first fluidic devices and the second fluidic devices each provide a multi-dimensional spray pattern.

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.

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.