An injector includes a nozzle body extending along a longitudinal axis and at least one spray hole extending through a portion of the nozzle body to output a fluid from the injector. The spray hole includes at least one groove. The groove is configured to facilitate efficient mixing of the fluid with air or other surrounding materials for enhanced performance of the injector and/or other components associated with the injector.

A spray nozzle for a system for dispensing a pressurized product is provided with a pushbutton. The nozzle includes a dispensing orifice and a vortex chamber emerging on the dispensing orifice. The chamber includes a conical part defined by a conical side surface. The conical side surface converges from an upstream end toward a downstream supply end of the dispensing orifice. The nozzle further includes at least one supply channel of the vortex chamber, each supply channel emerging in the upstream end of the conical part, the conical side surface having at least one stepped portion provided with multiple levels.

The disclosure relates to devices, systems, and methods using a helical nozzle. The devices, systems, and methods can include a helical nozzle having a plurality of flow channels that rotate around a center axis of the nozzle. The rotated channels can impart a helical flow to fluid moving through the nozzle thereby speeding dissolution of material within a container connected to the nozzle.

The present invention is intended to solve a problem that a coating film has an uneven thickness in the case where a coating target 1 has a stepped portion extending in a predetermined direction on its coating surface. To solve the problem, a follow-up coating is performed along the stepped portion S extending in the predetermined direction after coating of the entire coating surface of the coating target 1 so that paint mist adheres more to a relatively-recessed side of the stepped portion S.

A spray orifice structure for which, when spraying liquid contents onto a body part, such as a face, hair, an upper body or a lower body, by using a spray type container, it is possible to provide a user with a differentiated spray performance depending on each body part to be sprayed by manufacturing a spray orifice in consideration of an injection angle to which liquid contents are sprayed.

In the case of a sanitary outlet unit (1, 10), it is therefore provided to form throughflow channels (4) in a jet former (3) in such a manner that an outflow direction (14) predetermined by each throughflow channel (4) is oriented in a manner tilted in relation to a longitudinal housing axis (12) in two planes perpendicular to each other and/or about two directions perpendicular to each other.

An aspirating spray nozzle including a cylindrical nozzle body, an integrated annular shroud and a nozzle cap. The cylindrical nozzle body has an externally threaded first end portion defining an inlet, a second end portion defining an outlet, and a middle portion. The integrated annular shroud encircles part of the nozzle body and has a base which is integrally joined to the middle portion by way of webbing means. The nozzle cap is adapted to be connected to the second end portion of the nozzle body.

A fluidic oscillator includes an inlet portion configured to be engageable with a source of pressurized fluid. An oscillating portion is coupled to the inlet portion and includes a central chamber, a pair of side passageways in fluid communication with the central chamber, and an outlet disposed about a central axis. The pair of side passageways are positioned on opposite sides of the central axis, with each side passageway having a feedback inlet that receives fluid from the central passageway and a feedback outlet that returns fluid to the central passageway, with the feedback outlet being positioned between the feedback inlet and the inlet portion. The oscillating portion is configured such that, fluid fills the pair of side passageways in an alternating sequence, which results in fluid exiting the outlet at varying angles relative to the central axis.

The present invention concerns a system (1; 501; 601; 701; 801) for dispensing a fluid (L), comprising a container (C; C′) for the fluid (L) and a device (10; 210; 210′; 310; 410; 410′) for dispensing the fluid (L). The device (10; 210; 210′; 310; 410; 410′) comprises a collapsible chamber (20) which defines a volume

(V) suited to receive a quantity of said fluid (L) to be dispensed. The chamber (20) is defined by a first portion (30) and a second portion (130) mutually coupled with each other, wherein the first portion (30) comprises an area connected to the container (C; C′) and wherein the second portion (130) comprises an area connected to the container (C; C′).

A device for dispensing a vortex water jet has a device body in which a water swirling path is obtained. The water swirling path has a swirling chamber defined between two opposite side walls which axially extend between a plurality of water inlet ends circumferentially arranged about the swirling chamber, and a water outlet end. The water swirling path has a plurality of chamber supply channels which are angled with respect to the swirling chamber, each chamber supply channel leading into a water inlet end of the swirling chamber. The device generates an output swirling water jet having shapes with particular aesthetical effect.