A nozzle assembly includes a fluidic oscillator 100 operating on a pressurized fluid to generate an oscillating spray of fluid droplets, and the oscillator aims fluid jets from first, second and third power nozzles 114A, 114B, 114C into an interaction chamber 118 and toward an upwardly projecting island protuberance 126 defining first, second and third island wall segments. The outermost jets 114A, 114B are aimed at an obtuse angle of 100 to 140 degrees along axes which intersect beyond the island at a Jet intersection point, J1. The upstream end of interaction chamber 118 is defined by first and second laterally offset concave wall surfaces 142, 152 which define left side and right side vortex generating areas so that fluid jet steering vortices may be alternately formed and then displaced distally and shed to steer the fluid jet laterally within interaction chamber 118.

A sprayer head includes a domed spin chamber having an S-, Z-, irregular ellipsoid, or other asymmetrical shaped indentation on a post recessed within a dispenser channel. A nozzle cup is mounted onto the post so as to block portions of the dispenser channel and to define two or more tapered spin channels feeding the chamber, thereby improved mixing and fine mist dispersion characteristics. This combination may then be used in combination with any number of known pump mechanisms and containers to create a fine mist dispenser.

An outlet device provides vortex rotating water and includes a diverter having a side surface disposed with at least two spiral accelerating grooves extending along an axial direction and having a bottom surface disposed with a collision chamber, the at least two spiral accelerating grooves being evenly arranged about an axis of the collision chamber and having respective ends that connect to the side walls of the collision chamber; and an outlet body disposed with an accommodating chamber and a vortex rotating chamber connected to each other in the axial direction. The diverter is disposed in the accommodating chamber. The vortex rotating chamber is a dome shaped body having a flat end face that is connected to a bottom end of the accommodating chamber and has an external protruding surface. The outlet body has an outlet connected to the external protruding surface of the vortex rotating chamber.

A dispensing system comprises a solenoid valve that includes an inlet end adapted to be attached to a container such that a valve stem thereof is held in an open state. A flow adapter includes a cylindrical wall and a post mounted within the cylindrical wall to define an annular passage therebetween. An inlet end of the flow adapter is sealingly attached to an outlet end of the solenoid valve, and the flow adapter is adapted to receive a spray insert within the annular passage.

The method is for discharging water through a faucet. The nozzle is attachable to a faucet and switchable between a spray-mode and a mist-mode. An inner cavity has filters and a water rotating device. The housing has an opening defined therein in fluid communication with the inner cavity and grooves and an orifice at a bottom portion thereof. The second filter is disposed below the opening. When in the spray-mode, water flows out through the opening and through grooves and is discharged as spray and mist at a bottom of nozzle. When switched to the mist mode, water only flow through the second filter but not through the opening. Water flows through the water rotating device to create a rotation of the water and the rotating water is discharged through the orifice as mist.

A nozzle tip assembly comprises a nozzle housing and a break-up insert. The nozzle assembly is adapted for receiving multiple pre-cursor fluids from multiple lumen. The pre-cursor fluids are kept substantially separate and forced around the break-up insert into a channel formed between the insert and the nozzle housing. Fluid is forced into fluted channels on a distal end of the break-up insert into a swirl chamber where mixing occurs prior to being expelled through an exit orifice in the nozzle housing.

An outlet device with slow vortex rotating water includes a diverter and an outlet body; the side surface of the diverter has at least two spiral accelerating grooves extending along the axial direction; the bottom surface of the diverter is disposed with a column shaped collision chamber concaved in the axial direction; the spiral accelerating grooves are evenly arranged about the axes of the collision chamber at the side surface of the diverter, the end of the spiral accelerating groove extends to the bottom surface of the diverter to connect to the side wall of the collision chamber; the outlet body has an accommodating chamber and a vortex rotating chamber connected to each other in the axial direction; the diverter is disposed in the accommodating chamber; the vortex rotating chamber is a ball-crown body, the flat end face is connected to the bottom end of the accommodating chamber.

A nozzle assembly includes a fluidic oscillator 100 operating on a pressurized fluid to generate an oscillating spray of fluid droplets, and the oscillator aims fluid jets from first, second and third power nozzles 114A, 114B, 114C into an interaction chamber 118 and toward an upwardly projecting island protuberance 126 defining first, second and third island wall segments. The outermost jets 114A, 114B are aimed at an obtuse angle of 100 to 140 degrees along axes which intersect beyond the island at a Jet intersection point, J1. The upstream end of interaction chamber 118 is defined by first and second laterally offset concave wall surfaces 142, 152 which define left side and right side vortex generating areas so that fluid jet steering vortices may be alternately formed and then displaced distally and shed to steer the fluid jet laterally within interaction chamber 118.

The invention relates to a spray mist nozzle, in particular an open high-pressure spray mist nozzle for firefighting systems, having a housing which is configured with an extinguishing fluid inlet and is configured with multiple recesses for receiving an exchangeable nozzle insert, such a nozzle insert being inserted into one, multiple/plural or all the recesses. The nozzle insert has a main body with a longitudinal axis that has in the longitudinal axis a spray mist outlet for the extinguishing fluid. An exchangeable swirl body is arranged in the main body and is configured to swirl the extinguishing fluid prior to the latter exiting from the spray mist outlet. The spray mist outlet has a minimum opening cross section, and has a widened exit cross section downstream of the minimum opening cross section, wherein a transition from the minimum opening cross section to the exit cross section runs along a convexly curved surface.