A system for applying an agricultural product includes at least one control valve. For instance, the control valve has a moveable valve operator. One or more sensors monitor one or more control valve characteristics. A valve controller is configured to determine the control valve is in one or more of a primed state or an unprimed state based on a comparison of the one or more control valve characteristics to a primed valve characteristic threshold.

The present invention relates to a fluid spraying device for a system for cleaning a surface of a motor vehicle, the spraying device includes a solenoid valve configured to allow or prevent the passage of fluid towards a spraying member, the solenoid valve includes a hydraulic system and an electromagnetic system, the hydraulic system includes at least one fluid dispensing member that includes at least a fluid inlet end-fitting, a circulation chamber and a fluid outlet end-fitting in fluid communication with the spraying member, the electromagnetic system being configured to allow or prevent the passage of fluid through the circulation chamber, and the spraying member includes at least a connecting tube and a spray nozzle, the connecting tube being fastened directly to the fluid outlet end-fitting.

This invention provides a valve-module that is operative with relatively low-pressure pilot-air despite its small size and has excellent durability with less performance-variations than among other similar products. The valve-module of the present invention includes a pilot-port and a biasing-means for biasing the piston-portion in the opposite direction, and controls the opening and closing of the valve by supplying and discharging pilot-air. The first-permanent magnet is held by the first magnet-holder of the valve-rod, and the second-permanent magnet is held by the second magnet-holder of the piston housing. A magnetic-attraction force acts between both permanent magnets and drives the piston in the first direction and increases with the mutual approach of both magnets. Due to the presence of the thin-walled first-and-second collision-avoidance portions, an arrangement-relationship is set between the two permanent magnets such that the end-faces do not directly collide with each other, even when they are closest to each other.

A mobile sprayer apparatus includes a direct current electrical supply, and a supply conduit operative to supply pressurized liquid to a plurality of nozzle assemblies. Each nozzle assembly comprises a channel connecting the supply conduit to a nozzle, a valve operative to selectively open and close the channel, and a solenoid coil operative to selectively move the valve to an open position when a direct current electrical pulse is connected to pass through the solenoid coil in a first direction, and to selectively move the valve to a closed position when a direct current electrical pulse is connected to pass through the solenoid coil in an opposite second direction. A switch selectively delivers a pulse of electrical energy through each solenoid coil in the first direction or through each solenoid coil in the second opposite direction, and no electrical energy is delivered to the solenoid coils between pulses.

A liquid spraying system having an electrically operated pulse width modulation control for directing a modulated liquid discharge based upon frequency and duty cycle of a reciprocally operated liquid control valve. The spray nozzle assembly includes a nozzle body having an inwardly converging conical chamber communicating between an upstream liquid directing plate and a downstream liquid discharge passage. The liquid directing plate is formed with a one or more rings of circumferentially spaced liquid directing passages angularly oriented with respect to a central liquid flow axis of the nozzle body for directing liquid discharging from said nozzle body discharge passage into a predetermined conical spray pattern.

A fluid application system includes a manifold defining an internal passageway for fluid flow therethrough and a plurality of nozzle assemblies connected in fluid communication with the internal passageway. Each nozzle assembly of the plurality of nozzle assemblies includes a body defining a fluid passage, an inlet connected to the manifold for receiving fluid flow into the fluid passage, and a spray outlet for discharging fluid from the fluid passage. Each nozzle assembly also includes an electrically actuated valve fluidly connected between the inlet and the spray outlet and configured to control fluid flow through the fluid passage. Each nozzle assembly further includes a pressure dampener connected in fluid communication with the fluid passage upstream of the electrically actuated valve. The pressure dampener is configured to dampen fluctuations in fluid pressure within the fluid passage.

The disclosure relates to an application device for applying an application medium onto a component, preferably for application of a coating onto a motor vehicle body component. The application device includes a print head for preferably serial and/or permanent application of the application medium, wherein the print head has: a nozzle plate, at least one nozzle in the nozzle plate in order to discharge the application medium, at least one valve element, which is movable relative to the nozzle plate, for control of the application medium discharge through the at least one nozzle, wherein the at least one movable valve element closes the at least one nozzle in a closing position and releases it in an opening position, and at least one drive for moving the at least one valve element. The application device is characterised in particular in that it includes at least one temperature control apparatus for reducing heating of the at least one drive during application of the application medium.

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.

Provided is a vehicle cleaner system with which it can be ascertained which cleaner has broken down. A vehicle cleaner system comprises: a plurality of cleaner units; a motor pump; an electromagnetic valve which switches between allowing and denying the movement of a cleaning liquid; a cleaner control unit; and a plurality of protection determination units that protect the electromagnetic valve from being supplied with an overcurrent when the electromagnetic valve has short-circuited and is opened, and that notify the cleaner control unit that the electromagnetic valve has short-circuited and is opened. The cleaner control unit outputs, to a vehicle control unit, which electromagnetic valve is unavailable for use, on the basis of a signal that is acquired from the protection determination units and that indicates that the electromagnetic valve has short-circuited and is opened.

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.