A spray head including: an inlet for receiving fluid; a plurality of nozzles in fluid communication with the inlet; and a swirl inducer downstream of the inlet and adapted to produce, when in use, swirled fluid flow; wherein the plurality of nozzles are adapted to shape the swirled fluid flow exiting therefrom into a continuous jet of fluid of substantially dome shape.

A spray cap (20; 300; 400; 600) for a spray can (22) has a body comprising: a sidewall (140) having a lower portion for mounting to a body of the spray can; and a button (36). The button has: an upper surface (164) for user engagement; a downwardly projecting sleeve (38) for receiving an outlet stem (240) of the can; and a forwardly-open compartment (42). An insert (34; 302) is within the compartment. A nozzle member (32) is mounted across the compartment to contain the insert within the compartment.

The invention relates to a swirl generator of a fuel nozzle 6 of a gas turbine, with an inner 22 and an outer 21 ring element, wherein the ring elements 21, 22 are arranged so as to be concentric with respect to each other, and an outer annular channel 18a is formed between the inner ring element 22 and the outer ring element 21, having a radial height of h in its axially central area, characterized in that the outer annular channel 18a has a radial height of H at its inflow area 23 and is provided with air guiding elements 11 in the inflow area 23, wherein H>h applies, wherein an inner annular channel (18b) is formed at the radially inner side of the inner ring element (22), with its inflow area (23), which is provided with air guiding elements (11), having a larger radial height than a central area of the inner annular channel (18b), wherein the outer annular channel (18a) has an effective flow surface (A) in the area of the guide elements (11) that is larger than the effective flow surface in the axially central area of the outer annular channels(18a) without any guide elements, and the cross section of the outer annular channel (18a) tapers off from the inflow area (23) towards an outflow area (24).

A nozzle plate for a fuel injection device opposes a fuel injection port of a fuel injection device. A nozzle hole through which fuel injected from the fuel injection port passes is formed at the nozzle plate. At this nozzle plate for the fuel injection device, the nozzle hole has a fuel-flow-in-side opening end with a circular shape. The nozzle hole is coupled to the fuel injection port via fuel guide channels. The fuel guide channels have an opening into the nozzle hole, and a pair of opposing channel sidewalls. The opening has a channel width smaller than a hole diameter of the nozzle hole. One of the opposing channel sidewalls is formed to extend in a tangential direction of the nozzle hole. The fuel is directly flowed into the nozzle hole to generate a flow of the fuel in a spiral pattern in the nozzle hole.

A rotating ejection type oozing hose comprises a rotation generator formed at an ejection opening at an interval along a longitudinal direction of a hose, applying a rotational force to a flow of water from an inner space of the hose to an outer space. The rotation generator comprises a barrel-shaped rotating space extended from the ejection opening and formed inside the hose. The rotating space is defined by a side portion formed to be extended from an inner of the hose and having a rotational force applying passage horizontally connecting the inner space of the hose to the rotating space and a bottom portion for closing a lower end of the side portion. The rotational force applying passage faces a point deviating from a center portion of the rotating space, applying a rotational force to water flowing into the rotating space through the rotational force applying passage.

A showerhead engine internally swirls water within a swirling chamber. Multiple swirling chambers may be used, each separated from one another. The water is swirled with angled through holes in a mid plate. As the water passes through the angled holes it is projected out at an angle. The water then contacts the swirling chamber wall and continues to follow the curvature of the wall. The curved wall paired with the angled entry causes the water to continue to swirl within the swirling chamber. The water is released out of the swirling chamber through slots, which allow the water to retain the angular velocity at a discharge angle.

A spray cap (20; 300; 400; 600) for a spray can (22) has a body comprising: a sidewall (140) having a lower portion for mounting to a body of the spray can; and a button (36). The button has: an upper surface (164) for user engagement; a downwardly projecting sleeve (38) for receiving an outlet stem (240) of the can; and a forwardly-open compartment (42). An insert (34; 302) is within the compartment. A nozzle member (32) is mounted across the compartment to contain the insert within the compartment.

An all-plastic, continuous trigger sprayer is contemplated that avoids the use of metal parts, elastomers, or other disparate and non-recyclable materials. A reservoir diaphragm is provided within the sprayer head, interposed between the actuation mechanism and the outlet, so as to ensure a steady flow of dispensed fluid is delivered even after actuation has ceased.

The present technology presents an apparatus for cleaning the air and surfaces within an enclosed space of a viral, microbial, or malodor contamination. In an exemplary embodiment, the apparatus includes: a container configured to contain a water and a solid or gel pack that releases the gaseous cleaning agent upon contact with the water; an aerator housed in the base of the container; an air distributor in the container configured to distribute air from the aerator into the container to cause agitation of the water and release of gaseous agent; and a lid on the container having an opening configured to accelerate an air-borne spray of gaseous agent and water droplets therethrough into the surroundings.