Abstract: An air assisted spray nozzle assembly adapted for more efficiently producing a full cone spray distribution with finely atomized particles distributed throughout the conical spray pattern. The spray nozzle assembly includes a nozzle body having a liquid passage communicating with the pressurized liquid supply and at least one air passage communicating with a pressurized air supply.

Abstract: An air assisted spray nozzle assembly having an air cap effective for generating wide, flat spray patterns with improved liquid particle breakdown, utilizing relatively low air flow rates and pressures. The air cap includes a pair of longitudinally extending air passageways on opposite sides of a central liquid flow stream discharge orifice. The air flow passages each have a discharge orifice defined by a respective transverse deflector flange and a closely spaced inwardly tapered deflector surface which cooperate to deflect and guide pressurized air streams inwardly toward the discharging liquid flow stream for atomizing the liquid and for directing it into a well defined spray pattern.

Abstract: An air assisted spray nozzle assembly is provided. The spray nozzle including a nozzle body having a liquid inlet passage and a gas inlet passage. The air cap is disposed at a downstream end of the nozzle body and includes an outer body member having an inner bore extending from an open upstream end thereof. A fluid directing insert is inserted in the inner bore of the outer body member. The fluid directing insert has a fluid directing passage extending therethrough which communicates with the liquid inlet passage in the nozzle body. An impingement element is also inserted into the inner bore of the outer body member downstream from the fluid directing insert. The impingement element defines an impingement surface spaced from and opposing the fluid directing passage for deflecting a stream of liquid impinging thereon in a radially outward direction.

Abstract: In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat spray. Alternative forms of pressurized air atomizing heads are disclosed.

Abstract: In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat spray. Alternative forms of pressurized air atomizing heads are disclosed.

Abstract: An improved air-assisted spray nozzle assembly includes a section for receiving liquid and gas streams and a spray tip located downstream therefrom. The spray tip has a downstream chamber for receiving the liquid and gas with passages, each terminating with a cavity. The cavity cooperates with complementary notched portions for directing discharging flow streams in a predetermined direction for defining a well defined conical or flat spray pattern.

Abstract: A cap is disposed internally of a spray nozzle and effects active atomization of pressurized liquid flowing through the nozzle by mixing with compressed air and creating turbulence in the liquid during the flow. The nozzle includes an internal cap which cap which imparts significant turbulence on the flow through the nozzle serving to help atomize the liquid using a reduced amount of air energy. Different caps may be used to create various selected spray patterns.

Abstract: An air-assisted spray nozzle assembly including a pre-atomizing section and a spray tip located downstream of said pre-atomizing section. The spray tip has an upstream chamber for receiving pre-atomized liquid from the pre-atomizing section, a downstream chamber separated from the upstream chamber by an end wall, and the end wall is formed with a plurality of discharge passages adjacent its outer perimeter for directing a plurality of discharging flow streams in part in an outward axial direction and in part in a direction toward each other for defining a well defined conical or flat spray pattern.

Abstract: In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat spray.

Abstract: An air assisted atomizing spray nozzle including an atomizing member having: (a) a mixing chamber, (b) a liquid inlet opening for injecting a liquid stream axially into the mixing chamber, (c) a pair of air inlet openings for injecting a pair of air streams radially into the mixing chamber in directions substantially opposed to one another and substantially perpendicular to the liquid stream for atomizing the liquid stream, and (d) an exit orifice in axial communication with the mixing chamber for discharging atomized liquid therefrom. The atomized liquid is sprayed into atmosphere by a spray tip. The atomizing member and the spray tip are held in assembled relation with a housing by a quick connect/quick release cap.

Abstract: A pressurized stream of liquid flowing into a body is divided into a plurality of angularly spaced jets which are rebounded in an upstream direction prior to being guided in a generally radially outward direction by a deflector surface. During flow along the deflector surface, the liquid is formed into a thin and very turbulent sheet which impinges against the edge portion of a plate and is shattered into small droplets. An annular curtain of pressurized air cross shears the droplets and breaks the droplets into finely atomized particles which are discharged through a spray nozzle.

Abstract: An air assisted atomizing spray nozzle including: (a) a mixing chamber, (b) a liquid inlet opening for injecting a liquid stream axially into the mixing chamber, (c) a pair of air inlet openings for injecting a pair of air streams radially into the mixing chamber in directions substantially opposed to one another and substantially perpendicular to the liquid stream for atomizing the liquid stream, and (d) an exit orifice in axial communication with the mixing chamber for discharging atomized liquid therefrom.

Abstract: A spray nozzle assembly having a spray tip formed with an elongated, cylindrical chamber communicating with the liquid supply and being formed with a cross-slot which intersects the chamber at a location intermediate the ends thereof for defining a discharge orifice, a deflection surface on a downstream side of the discharge orifice for directing liquid in a direction transverse to the axis of the chamber, and a pocket extending downstream of the deflector surface. In one embodiment, the spray tip has a pre-orifice substantially smaller in diameter than the chamber adjacent an upstream end thereof, in another embodiment, the chamber is disposed with its axis at an angle to the vertical and the cross-slot extends upwardly in substantially vertical relation for defining a vertical deflection surface, and in still another embodiment the spray tip has a wear resistant metal insert.

Abstract: A spray nozzle assembly having a spray tip formed with an elongated, cylindrical chamber communicating with the liquid supply and being formed with a cross-slot which intersects the chamber at a location intermediate the ends thereof for defining a discharge orifice, a deflection surface on a downstream side of the discharge orifice for directing liquid in a direction transverse to the axis of the chamber, and a pocket extending downstream of the deflector surface. In one embodiment, the spray tip has a preorifice substantially smaller in diameter than the chamber adjacent an upstream end thereof, in another embodiment, the chamber is disposed with its axis at an angle to the vertical and the cross-slot extends upwardly in substantially vertical relation for defining a vertical deflection surface, and in still another embodiment the spray tip has a wear resistant metal insert.

Abstract: A self-cleaning spray nozzle in which a standard fitting serves as the nozzle body. A unitary valve assembly is inserted partially into the fitting and secured to it. The valve assembly includes a secured valve seat biased by a spring into a spraying head so that the valve seat and spraying head form a seal. The spraying head is designed so that it does not form a complete seal with the valve seat, the gap in the seal defining a metering orifice so that under normal fluid pressures, fluid will spray out of the orifice in a predetermined pattern. When a force sufficient to overcome the spring bias is applied to the spraying head, the spraying head separates from the valve seat breaking the seal and allowing the fluid to flush the outlet. The force can either be applied manually, or caused by an increase in fluid pressure. An optional deflection collar may be snapped onto the nozzle for influencing the direction of the spray.

Abstract: A spray nozzle assembly having a spray tip formed with an elongated, axially extending cylindrical chamber communicating with the liquid supply and being formed with a cross slot which intersects the chamber at a location intermediate the ends thereof for defining a discharge orifice, a deflection surface on a downstream side of the discharge orifice for directing liquid in a direction transversed to the axis of the chamber, and a pocket extending downstream of the deflector surface a distance significantly greater than the diameter of the chamber.

Abstract: A hand-held spray gun including a handle section, a barrel section mounted forwardly of the handle section, and a nozzle section mounted forwardly of the barrel section. The handle section has a liquid inlet at a rearward end thereof and is adapted to direct pressurized liquid in a straight longitudinal path through a relatively inexpensive plastic tube which functions both as a liquid conduit and as a mechanism for moving a valve follower of the gun between open and closed conditions in response to actuation of a trigger. The handle section further has a pressurized air inlet which communicates with the nozzle section through an air passageway defined between the liquid conduit tube and a barrel section housing for facilitating liquid atomization of the spray discharge.

Abstract: A spray nozzle in which a nozzle body is formed with an elongated chamber having an air inlet port communicating with the side of the chamber, a liquid inlet port communicating with one end of the chamber, and a nozzle tip communicating with the opposite end of the chamber. The spray nozzle may be operated in a hydraulic or non-air assisted mode and with a relatively high flow rate by closing off the air inlet port and causing liquid to stream directly from the liquid inlet port to the nozzle tip. The nozzle also may be converted to an air assisted mode in which a stream of pressurized air is injected into the air inlet port and impinges transversely against the liquid stream to preliminarily break up or preatomize the liquid before the liquid is discharged from the nozzle tip. The conversion is effected by placing into the nozzle body an insert for reducing the flow rate of the liquid stream and for causing the air and liquid streams to interact to effect preatomization of the liquid.