Abstract: The present disclosure relates generally to spray systems and, more particularly, to industrial spray coating systems for applying coatings of paint, stain, and the like. Specifically, the disclosed embodiments relate to a spray gun an air cap configured to produce air swirl. For example, in an embodiment, a system is provided that includes a spray coating device. The spray coating device has a liquid passage extending to a liquid outlet configured to output a liquid flow and an air passage extending to a plurality of air outlets configured to output an air flow. The plurality of air outlets is angled to swirl the air flow.

Abstract: The present disclosure relates generally to spray systems and, more particularly, to industrial spray coating systems for applying coatings of paint, stain, and the like. Specifically, the disclosed embodiments relate to a spray gun an air cap configured to produce air swirl. For example, in an embodiment, a system is provided that includes a spray coating device. The spray coating device has a liquid passage extending to a liquid outlet configured to output a liquid flow and an air passage extending to a plurality of air outlets configured to output an air flow. The plurality of air outlets is angled to swirl the air flow.

Abstract: An electrical generator includes a passageway having an input port and at least one output port and at least one resonator for converting acoustic vibrations established in the passageway into mechanical vibrations of the resonator. The resonator is oriented adjacent at least one output port. A mechanical-to-electrical transducer is coupled to the resonator for generating electricity in response to the mechanical vibrations.

Abstract: An electrical generator includes a passageway having an input port and at least one output port and at least one resonator for converting acoustic vibrations established in the passageway into mechanical vibrations of the resonator. The resonator is oriented adjacent at least one output port. A mechanical-to-electrical transducer is coupled to the resonator for generating electricity in response to the mechanical vibrations.

Abstract: The present technique provides a system and method for improving atomization in a spray coating device by internally mixing and breaking up a desired coating fluid prior to atomization. In one embodiment, a flow barrier is disposed in the spray coating device downstream of an internal fluid valve and upstream of a fluid exit. The flow barrier may have a plurality of passages configured to direct fluid streams to create a fluid swirling and rotating motion around a central axis of a central flow path to facilitate fluid mixing and breakup. The plurality of passages may direct the fluid streams toward a surface, and may be angled substantially toward one another or diverging from one another. Embodiments of the spray coating device may further include an atomization mechanism adapted to facilitate formation of a spray of the fluid flowing from the fluid exit. The resulting spray coating has refined characteristics, such as reduced mottling.

Abstract: In accordance with certain embodiments, a spray system is provided with a spray tip including a core tip structure having a first material, wherein the core tip structure includes a liquid passage extending to a liquid exit orifice. The spray tip also includes a wear resistant coating disposed about the core tip structure, wherein the wear resistant coating has a second material relatively harder than the first material.

Abstract: In accordance with certain embodiments, a system includes a spray device having a liquid pathway leading to a liquid exit, an air pathway leading to an air exit directed toward a spray region downstream of the liquid exit, and an assembly disposed in the liquid pathway adjacent the liquid exit. The assembly includes a threadless pintle generally fit into a sleeve in a concentric manner without threads. The assembly also includes a generally annular passage between the threadless pintle and the sleeve and a passage coupled with the generally annular passage. The generally annular passage also has a cross-sectional area that alternatingly increases and decreases in a lengthwise direction along the liquid pathway.

Abstract: A system and method is provided for atomizing a liquid without the use of air to atomize the liquid. The system comprises a turbo spray nozzle that has a rotatable shaft. The rotatable shaft has a center bore with an opening at one end to enable a liquid to flow into the center bore of the rotatable shaft. The rotatable shaft also has a plurality of orifices that extend from the center bore to an outer surface of the rotatable shaft at the end opposite the opening. The rotatable shaft is rotated by pressurized air. The rotation of the shaft causes the liquid flowing into the center bore to be induced into a helical flow path that causes the liquid to disassociate. The system may comprise a spray gun coupled to the turbo spray nozzle. The system may also comprise an air compressor to provide the pressurized air to rotate the rotatable shaft. The system may also comprise a container for the liquid hat may be pressurized to provide a motive force to the liquid.

Abstract: In accordance with certain embodiments, a spray coating device includes a body and a spray formation head coupled to the body. The spray formation head has a fluid delivery mechanism comprising a pintle, a sleeve disposed about the pintle, and a throat between the pintle and the sleeve, wherein the throat decreases in cross-section at least partially lengthwise through the fluid delivery mechanism toward a fluid exit between the pintle and the sleeve. The spray formation head also has a pneumatic atomization mechanism disposed adjacent the fluid delivery mechanism, wherein the pneumatic atomization mechanism comprises a plurality of pneumatic orifices.

Abstract: The present technique provides a system and method for improving atomization in a spray coating device by internally mixing and breaking up a desired coating fluid prior to atomization at a spray formation section of the spray coating device. An exemplary spray coating device of the present technique has a mixture-inducing valve disposed adjacent a flow barrier upstream of a spray formation exit. The mixture-inducing valve may have a variety of blunt/angled structures and internal passages to facilitate fluid mixing. The mixture-inducing valve also may interact with the flow barrier to enhance the fluid mixing and fluid breakup. One embodiment of the present spray coating device has an internal fluid breakup section, such as an impinging jet section, adjacent the mixture-inducing valve. The resulting spray coating has refined characteristics, such as reduced mottling.