A drive circuit for a solenoid valve having a coil and a poppet configured to translate within the coil includes a drive switch operable to de-energize the coil to translate the poppet toward a closed position, a sensor configured to detect the poppet translating within the solenoid valve, and a drive circuit configured to energize and de-energize the coil of the solenoid valve to translate the poppet of the solenoid valve between an open position and a closed position. The drive circuit includes a controller configured to receive a closure signal from the sensor, determine a closing time of the solenoid valve based on the closure signal, determine a time delay between de-energizing the coil and the determined closing time, and determine a fluid flow value of fluid flowing through the solenoid valve based on the determined time delay.

A spraying apparatus having an improved system for monitoring the flow of a spray nozzle or spray device and sensing malfunctions to the spray device is provided. The spraying apparatus includes sensors to monitor an input or instruction signal and a spray signal. The timing of the signals are analyzed to verify whether the spraying apparatus is opening and closing properly for each spray instruction signal.

A sprayer equipment includes a support frame, a pump, a pressure regulator, a concentrate tank, an injector, a spray nozzle, and a controller. The support frame has a plurality of wheels. The pump is coupled to the support frame and includes a pump inlet configured to be fluidly coupled to a water source and a pump outlet providing water at an increased water pressure. The pressure regulator is configured to control the pressure of the water. The concentrate tank is supported by the support frame and configured to store a concentrate fluid. The injector is fluidly coupled to the concentrate tank and configured to inject the concentrate fluid into the water. The spray nozzle is fluidly coupled to the pump outlet and the injector. The controller is coupled to the injector and is configured to control operation of the injector.

The present disclosure provides a flow control valve for controlling the flow of a cleaning media, such as controlling the flow of cleaning media to a nozzle positioned to distribute the cleaning media to a vehicle surface. The nozzle is integrated with the flow control valve. Vehicles and systems incorporating a flow control valve are also provided.

Embodiments include individual physical spray nozzles that have passageways inside to combine fluids that flow out of the spray nozzles. The nozzles have at least two valves that are opened and closed in an interleaved manner. The nozzles have multiple outlets. Such nozzles are mounted on a variety of implements including agricultural or industrial spray booms.

A suck back type intermittent coating system including a valve mechanism, a valve manipulating mechanism and a solenoid valve for controlling the operation of the valve manipulating mechanism and a control device that inputs therein a pulse signal indicative of the travel state (travel speed etc.) of a base material traveling along a coating line, and outputs an electrical command to the solenoid valve. A displacement sensor for detecting a displacement of the movable valve body of the valve mechanism is provided so that the operation of the valve manipulating mechanism is remotely controlled by a command signal to the solenoid valve; and with a computer having a feedback function that issues a correction signal to the operation of the solenoid valve confirmation and tally of the operation of a coating gun module is performed even when away from a production line.

In an example, a system for applying an agricultural product includes a valve and a solenoid. For instance, the valve includes a coil that generates a magnetic flux. The system includes a valve controller. The valve controller is configured to measure one or more electrical characteristics of at least one of the coil or a dissipation element. In some examples, the valve controller determines an actual duty cycle of a valve operator of the valve using the measured electrical characteristics. The valve controller determines a magnetic flux correction, for instance based on a difference between the actual duty cycle and a specified duty cycle. The valve controller operates the valve operator according to the specified magnetic flux and the magnetic flux correction to guide the actual duty cycle toward the specified duty cycle.

A spray head includes a front cover, a spray plate, and an actuator. The front cover includes a plurality of exit openings. The spray plate is oriented substantially parallel to the front cover. The spray plate includes a pin that is aligned with at least one exit opening of the plurality of exit openings. The pin is configured to selectively engage with the at least one exit opening to control a flow of water through the at least one exit opening. The actuator is coupled to the spray plate and is configured to reposition the spray plate relative to the front cover based on user input.

A liquid spray boom for supporting a plurality of spray nozzle assemblies each having a compact design that enables transfer and storage of the spray boom with lesser tendency for damage. The spray nozzle assemblies each include a liquid inlet section and a pair of spray nozzle liquid supply and support legs extending from the liquid inlet section in forward transverse relation to the spray boom and at an acute angle to each other. A spray nozzle is removably mounted on each nozzle body liquid supply leg with a respective check valve disposed in rearward relation to the spray nozzle. The liquid inlet section, Y body, and supporting components for the spray nozzles and check valve are adapted for quick disconnect assembly and disassembly.

The invention relates to a metering valve (1) for controlling a gaseous medium, in particular hydrogen, comprising a valve housing (2), wherein an interior space (3) is formed in the valve housing (2). A reciprocating closing element (10) is arranged in the interior space (3), which interacts with a valve seat (37) for opening or closing at least one passage channel (25). Furthermore, the metering valve (1) comprises a nozzle (11), the at least one passage channel (25) being formed in the nozzle (11) and the passage channel (25) having a circular-cylindrical portion.