A water spraying assembly is provided which includes a fluid conduit, a vortex chamber, an intermediate chamber, and a nozzle chamber. The intermediate chamber has a constricted section which increases the velocity of water that passes through the nozzle chamber. Further, the nozzle has one or more holes which project through the nozzle chamber's sidewall where the intermediate chamber enters into the nozzle chamber. The vortex chamber is positioned between the fluid conduit and the intermediate chamber. The vortex chamber rotates the flow of water around the showerhead's longitudinal axis before the water enters the nozzle's intermediate chamber. This causes the water to swirl within the intermediate chamber and nozzle chamber to increase the effect of air aspirating into water within the showerhead's nozzle.

The present invention relates to is a nozzle for an oral irrigator, comprising: a nozzle body; and a housing, in which an outlet is defined, wherein the housing is connected to one end of the nozzle body-(242), and defines, with the nozzle body, an accommodating cavity in communication with the air. Fluid for oral irrigation enters the accommodating cavity through the nozzle body, and is sprayed out via the outlet after being mixed with the air.

Systems and methods for enhanced filtration and separation of fluid from microorganisms, toxins and other particles in a more efficient manner is provided. The system may include a selectively removeable fitting or replaceable filter media and is suitable for use with liquid dispensing devices such as hydrotherapy jets, shower heads, liquid nozzles, and bathtub faucets.

A gas-liquid two-phase flow atomizing nozzle includes a nozzle core, an outer sleeve and an atomizing body. An inner cavity of the nozzle core consists of an inlet tapered section, a jet flow section and an outlet diffusion section. The outlet diffusion section of the nozzle core is connected to an atomizing body mixing chamber. The jet flow section of the nozzle core is in communication with external atmosphere through a core air inlet hole, an air inlet buffering chamber and a sleeve air inlet hole.

The present invention provides a device that can generate a pulsatile flow or intermittent flow from a continuously flowing of the water tap by pressure of the water tap without using an electrical activation part. The device for generating a pulsatile fluid or intermittent fluid comprises an injection mechanism 110 for injecting fluid, which is a liquid or gas; an air cavity 120 which includes an airtight space, a draining portion 150 disposed in the lower part; an air intake ventilation hole 141 connected to the ventilation pass 140. The injection point of the injection mechanism 110 is around the air intake ventilation hole 141, and the injected flow is formed so that a part of the injected flow runs downward for covering the surface of the side wall in which the air intake ventilation hole 141 is included. The air intake ventilation hole 141 is partially covered or brushed by the running flow, so the fluctuation rhythm of the air blow is generated, wherein the temporary air pressure decrease in the air cavity 120 given by the downward flowing of the injected flow and temporary air pressure recovery in the air cavity 120 given by the air blowing form the outer air are repeatedly. Therefore, the pulsatile flow or the intermittent flow is generated.

A shower head to jet a mist of liquid droplets includes a shower nozzle, mist throttle holes, and mist guides. The mist throttle holes are each formed into a conical hole passing through the shower nozzle. The mist guides are each formed into a conical spiral shape and each fitted in the mist throttle holes so as to define mist flow passages each having a spiral shape.

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 hose end spray head apparatus includes a spread head body and a hose coupling. The spray head body includes a mixing body and a spray outlet arm formed as a unitary construction. The spray outlet arm extends outwardly from the mixing body and includes a spray bore to discharge a mixed fluid. The spray bore communicates with atmosphere via a first radial sidewall bore and a first offset top surface bore. An axial bottom surface bore extends from the bottom surface to the spray bore and is draws product from a container so as to inject the product into the spray bore. A second radial sidewall bore is configured to communicate an open interior of the container with atmosphere. The hose coupling is secured to the mixing body and mounts to a fluid supply to form the mixed fluid which is discharged through the spray bore.

The spray nozzle includes a body, which has a fluid inlet region and a fluid outlet orifice, and which houses: a core, internally defining a passage, of increasing cross-section, in communication with the outside substantially at the point of its smallest cross-section, resulting in a Venturi effect, an insert, provided with an outlet slot defining the opening angle of the nozzle, the core and the insert being at a distance from one another and forming therebetween a working chamber.

The nozzle further includes a splitter, housed in the working chamber, arranged to form an obstacle to the flow of the fluid, the splitter having two axial orifices, each forming a fluid passage, on either side of a radial plane, such that the two streams passing through the orifices of the splitter combine and then impinge the surface of the outlet slot of the insert, ultimately generating a flat jet.

A multi-functional shower head attachment device with suction and pressure capabilities enables users to induce a pressurized flow of liquid, or suction with handheld device selectively removably couplable to a conventional shower head. The device includes a housing containing a fluid transport network that is selectively manipulated along a valve translation path to selectively induce a negative pressure vacuum, and a pressurized discharge of fluid. The vacuum is generated as the pressurized fluid is diverted through a configuration of conduits, past a venturi channel and through a secondary exit port; thereby creating the vacuum through adjacent, fluidly coupled conduits. The pressurized fluid discharge is generated as the incoming pressurized fluid is diverted directly through a series of conduits to an exit port. The housing is coupled to a handheld suction and pressure housing assembly through which the user washes, removes acne/oils, etc., with both suction and pressurized fluid discharge.