A fluid delivery system for dispensing fluid can include a dispenser, such as a trigger engine-type dispenser (100), configured to draw fluid up from a container. A nozzle assembly can include a nozzle (160), and a nozzle slide (112). The nozzle slide can be configured to slide and/or rotate relative to the shroud (102) to provide different dispensing modes. In alternative examples, the nozzle (160) can be configured to rotate in 30 degree increments relative to the shroud (102) to provide the different dispensing modes or the nozzle assembly can include a nozzle extension, and the nozzle extension can be configured to rotate relative to the shroud to provide different dispensing patterns out of the nozzle. In another example a first nozzle can be configured to provide one or more dispensing modes, and a second nozzle can be configured to provide a different dispensing mode than the first nozzle. Methods of dispensing fluids and methods of assembling fluid dispensers are also disclosed.

A spray nozzle comprising a housing including a primary passage defining a primary axis, a series of secondary passages configured to provide swirl to a fluid passing therethrough circumferentially positioned around the housing, a series of standoffs circumferentially spread around an outer surface of the housing and located downstream along the primary axis of the series of swirling passages, wherein each of the swirling passages corresponds to a respective standoff of the series of standoffs, in order to control the swirl of the fluid.

An injector is provided, comprising: a valve seat having a needle opening extending from an upper surface along a longitudinal axis and terminating at a seating surface configured to mate with a valve needle to control flow of fluid through the injector, and a nozzle plate. The valve seat further comprises a plurality of drillings and a corresponding plurality of swirl channels, each of the plurality of drillings being in flow communication with the needle opening and a swirl channel. Each of the swirl channels directs flow of fluid from one of the drillings toward the longitudinal axis into a central swirl chamber. The nozzle plate includes a substantially flat upper surface that engages the valve seat lower surface and includes an opening in flow communication with a metering orifice, the opening being aligned with the central swirl chamber when the nozzle plate is attached to the valve seat.

A fluid dispenser having an accumulator and a discharge head. The discharge head is secured to a base unit of the dispenser, which base unit includes a fluid accumulator. The discharge head has a housing displaceable relative to the base unit for actuating the dispenser. The discharge head has an inlet through which fluid travels from the fluid accumulator into the discharge head, and a discharge opening through which the fluid is delivered into the atmosphere. A swirling chamber having an inlet channel is provided between the fluid inlet and the discharge opening so that inflowing fluid is provided with a swirl which forms a spray stream when exiting the discharge opening. The swirling chamber is switched between a first and a second configuration by changing the geometry of its walls and/or the inlet channel.

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.

The present invention discloses a water outlet device, comprising: at least one rotatable driving member, at least one injector, and a main body with a plurality of water outflow passages. The main body comprises at least one accommodating cavity, each of the at least one rotatable driving member is driven to rotate by water flow, and each of the at least one rotatable driving member drives the corresponding one of the at least one injector to rotate in the corresponding one of the at least one accommodating cavity. Each of the at least one injector comprises at least one injection hole, the at least one injection hole is connected to the corresponding one of the plurality of water outflow passages, and a water outflow direction of the at least one injection hole and an axial direction of the corresponding one of the plurality of water outflow passage forms an angle.

A spray nozzle comprising a housing including a primary passage defining a primary axis, a series of secondary passages configured to provide swirl to a fluid passing therethrough circumferentially positioned around the housing, a series of standoffs circumferentially spread around an outer surface of the housing and located downstream along the primary axis of the series of swirling passages, wherein each of the swirling passages corresponds to a respective standoff of the series of standoffs, in order to control the swirl of the fluid.

A discharge head for discharging liquid as an atomized spray jet and as a non-atomized liquid stream or as individual droplets. The discharge head fastening fastens to a base unit and has a liquid outlet through which liquid is discharged from a reservoir into the atmosphere, and a liquid inlet through which liquid is conducted out of the reservoir to the liquid outlet. An internal part is arranged inside an outlet channel, and a spray opening is provided on the internal part. The internal part and the outlet channel are relatively displaceable so that in a first position a bypass duct is produced between an internal wall of the outlet channel and an outer face of the internal part, the flow resistance thereof being lower than the spray duct, and in a second position is partially closed wherein the flow resistance of the bypass duct is greater than the spray duct.

The present invention discloses a water outlet device, comprising: at least one rotatable driving member, at least one injector, and a main body with a plurality of water outflow passages. The main body comprises at least one accommodating cavity, each of the at least one rotatable driving member is driven to rotate by water flow, and each of the at least one rotatable driving member drives the corresponding one of the at least one injector to rotate in the corresponding one of the at least one accommodating cavity. Each of the at least one injector comprises at least one injection hole, the at least one injection hole is connected to the corresponding one of the plurality of water outflow passages, and a water outflow direction of the at least one injection hole and an axial direction of the corresponding one of the plurality of water outflow passage forms an angle.

A fluid dispenser having an accumulator and a discharge head. The discharge head is secured to a base unit of the dispenser, which base unit includes a fluid accumulator. The discharge head has a housing displaceable relative to the base unit for actuating the dispenser. The discharge head has an inlet through which fluid travels from the fluid accumulator into the discharge head, and a discharge opening through which the fluid is delivered into the atmosphere. A swirling chamber having an inlet channel is provided between the fluid inlet and the discharge opening so that inflowing fluid is provided with a swirl which forms a spray stream when exiting the discharge opening. The swirling chamber is switched between a first and a second configuration by changing the geometry of its walls and/or the inlet channel.