A swirl element for swirling fluid in a nozzle has a swirler body. The swirler body defines a feed channel including an axially oriented channel surface and a swirl chamber in fluid communication with the feed channel. The swirl chamber defines a radially oriented swirler surface substantially normal to the channel surface. The swirl chamber and the axially oriented channel are in fluid communication through a tangential slot for imparting swirl on fluids passing from the feed channel into the swirl chamber. The tangential slot includes a smoothly rounded surface transitioning from the channel surface to the swirler surface for providing a smooth, substantially separation free transition in fluid flow from the channel into the swirl chamber.

The two-piece nozzle for an aerosol dispenser, has (i) an outer piece (12, 22) provided with a tubular wall (121, 221) open on one side and closed on the other by a front wall (122, 222), forming a cavity, the front wall being provided at its center with an outlet opening (123, 223), the outer piece having a certain symmetry about an axis of symmetry (A) and (ii) inner piece (11, 21) separate from the dispenser for which the nozzle is intended, the inner piece (11, 21) being dimensioned to penetrate into the cavity of the outer piece while being retained therein, the inner piece having a front face (111, 211) facing the front wall (122, 222) of the outer piece and a lateral face following the front face. Channels (112, 125, 224, 225) are made in the cavity of the outer piece (12, 22) and/or on the surface of the inner piece, which channels open into a turbulence chamber (127, 227) in communication with the outlet opening (123, 223), the outlet opening (123, 223) being placed in the flow path of the product flow downstream of the turbulence chamber. The channels are divided into lateral channels (112, 224) in the lateral face of the inner piece (11, 21) and/or in the inner face of the tubular wall of the outer piece (12, 22), and into converging channels (125, 225) in the front wall (122, 222) of the outer piece or in the front face (111, 211) of the inner piece.

Spray heads for use with desuperheaters and desuperheaters including such spray heads. One example of a spray head includes a main body having an exterior surface and defining a central passage, the main body adapted for connection to a source of fluid, at least one entrance port formed in the main body along the central passage, and at least one spray nozzle arranged adjacent the exterior surface of the main body. The spray head also includes a plurality of flow passages, each of the plurality of flow passages providing fluid communication between the entrance port and an exit opening of the spray nozzle. A first one of the plurality of flow passages follows a first non-linear path and has a first distance, and a second one of the plurality of flow passages follows a second non-linear path and has a second distance different from the first distance.

A spray delivery system with minimal pressure loss can is used with an aerosol container having a valve. The system includes a vertically extending conduit having an opening at a lowermost end conduit and two openings through a surface at an opposite end. The surface is disposed at an angle relative to a vertical. The system also has a first horizontally extending conduit communicating with the vertically extending conduit though one of the two openings and a second horizontally extending conduit fluidly communicating with the vertically extending conduit though the other one of the two openings. A manifold defines an inner annular volume and fluidly communicates with the first and second horizontally extending conduits. A spray nozzle insert is in fluid communication with the manifold. The spray nozzle insert has a plurality of blades that radiate inward and connect with a center round well having a sharp end.

A nozzle includes a shell, a distributor, a panel and a collar. The distributor is inserted in the shell. The distributor includes protuberances each of which includes a cylindrical section, a conical section extending from the cylindrical section, and two fins extending from the cylindrical section. The panel includes outlets and tubes. The outlets extend through the panel. Each of the tubes is in communication with a corresponding one of the outlets and includes tangential passageways. Each of the tubes receives a corresponding one of the protuberances. The tangential passageways of each of the tubes receive the fins of the corresponding protuberance so that each of the tangential passageways is partially blocked by the corresponding fin. The collar is connected to the shell and includes an annular flange. The collar receives the panel. The panel is sandwiched between the annular flange of the collar and an end of the shell.

The invention relates to a spray head for a device for dispensing a fluid product, having a body provided with a spray orifice, a central channel being connected to the spray orifice via a spray profile having a vortex chamber arranged directly upstream of the spray orifice, the spray profile having at least two curved channels extending from the central channel to the vortex chamber, each curved channel connected non-radially to the vortex chamber, to form a spray exiting the spray orifice, each curved channel having a convex shape, diverging laterally outwards from the central channel, and then from an inflection point, returning laterally inwards towards the vortex chamber.

A water outlet structure for fine-gentle atomized particle water comprises a water inlet cavity, a first arc acceleration track, a side flushing cavity, a second arc acceleration track, and a water outlet hole. A first end of the first arc acceleration track is connected to a side wall of the water inlet cavity, a second end of the first arc acceleration track is connected to a first end of the side flushing cavity, and a second end of the side flushing cavity is connected to the second arc acceleration track. The water outlet hole is disposed on a circle center of the second arc acceleration track. The present disclosure further provides a shower and a kitchen shower comprising the water outlet structure.

An atomizer nozzle for atomizing a fluid, in particular a liquid, including a nozzle opening, a spinning chamber and at least one delivery channel for feeding the fluid into the spinning chamber, at least one delivery channel extending into the spinning chamber via at least one inlet. The spinning chamber has a curved base which is curved away from the nozzle opening, and at least one delivery channel is oriented towards the base.

Spray heads for use with desuperheaters and desuperheaters including such spray heads. One example of a spray head includes a main body having an exterior surface and defining a central passage, the main body adapted for connection to a source of fluid, at least one entrance port formed in the main body along the central passage, and at least one spray nozzle arranged adjacent the exterior surface of the main body. The spray head also includes a plurality of flow passages, each of the plurality of flow passages providing fluid communication between the entrance port and an exit opening of the spray nozzle. A first one of the plurality of flow passages follows a first non-linear path and has a first distance, and a second one of the plurality of flow passages follows a second non-linear path and has a second distance different from the first distance.

An aftertreatment atomizer, according to an exemplary aspect of the present disclosure includes, among other things, a valve body providing a valve seat and including a plurality of feeding channels, a pintle configured to move between open and closed positions relative to the valve seat, and a nozzle plate including a plurality of swirling grooves Each swirling groove has a pressure swirl nozzle opening configured to eject fluid exiting a respective feeding channel into an exhaust pipe.