Abstract: A two-piece nozzle for an aerosol dispenser has an outer piece with a tubular wall open on one side and closed on the other by a front wall (122), forming a cavity, with an outlet opening (123) in a center of the front wall; an inner piece dimensioned to penetrate into the cavity of the outer piece and be retained there, piece; channels (112, 125) in the cavity of the outer piece and/or on the surface of the inner piece, wherein said channels open into a turbulence chamber (127) in communication with the outlet opening (123) placed downstream in the flow path of the product flow; and a protrusion (113, 114) in the center of the front face of the inner piece, whose free portion opposite the front face, called torpedo (114) penetrates into the outlet opening (123) to reduce its cross section and form an annular outlet orifice.

Abstract: A fluid dispenser pump comprising: a pump body; at least a first piston that slides in leaktight manner in said pump body on each actuation so as to expel a dose of fluid through a dispenser orifice (45) that is provided in a dispenser head (40); a closure member (38), movable between a closed position and an open position, being disposed in said dispenser head (40) upstream from said dispenser orifice (45), said closure member (38) being urged towards its closed position by a resilient element, such as a spring; said closure member (38) in the closed position co-operating in leaktight manner with said dispenser head (40) in at least three distinct sealing zones (381, 382, 383).

Abstract: A distributor for a pressure atomizer includes a distributor body having an upstream end defining an internal liquid circuit, a downstream end defining a spin chamber for swirling a liquid flowing therethrough, and an outboard peripheral surface extending from the upstream end to the downstream end. The upstream and downstream ends are spaced apart along a longitudinal axis. An inclined passage is defined in the outboard peripheral surface in fluid communication with the internal liquid circuit and with the spin chamber for producing a relatively wide spray angle for a given distributor body size. The inclined passage is angled to diverge from the longitudinal axis of the distributor body in a direction toward the downstream end.

Abstract: A variable arc sprinkler nozzle is provided for distribution of water through nearly any adjustable arcuate span. The nozzle includes one or more arcuate slots formed by the helical engagement of spiral surfaces of a deflector and a nozzle body. A user may rotate a portion of the nozzle body to select the arcuate span of the one or more slots. A matched precipitation rate feature is adjustable to proportion the amount of water directed to the deflector depending on the extent of the arcuate span. Further, edge fins on the deflector and nozzle body channel water flow at the two edges of the distribution arc to increase the throw radius and to provide fairly uniform water distribution at the edges of the arc.

Abstract: Spray nozzle comprising a front wall, an outlet channel delimited by a lateral surface substantially of revolution about an axis perpendicular to the front wall, an intake conduit supplying fluid product to the outlet channel, said intake conduit extending in a plane perpendicular to the axis, substantially tangentially to the lateral surface of the outlet channel, between an upstream and a downstream end opening out into the lateral surface of the outlet channel, the lateral surface of the outlet channel comprising a relief arranged radially relative to the axis and suitable for forming a static surface layer of fluid product.

Abstract: A reduced pressure treatment system includes a porous pad positioned at a tissue site and a canister having a collection chamber, an inlet, and an outlet. The inlet is fluidly connected to the porous pad. A reduced pressure source is fluidly connected to the outlet of the canister to such that fluid from the tissue site may be drawn into the collection chamber. A hydrophobic filter is positioned adjacent the outlet to prevent liquid from exiting the collection chamber through the outlet. A baffle is positioned within the canister to create a tortuous path between the inlet and the outlet to prevent premature blocking of the hydrophobic filter.

Abstract: An object of the invention is to provide a casting nozzle in which attachment and deposition of alumina or the like can be prevented while a drift of molten steel can be prevented. The casting nozzle according to the invention is characterized in that the casting nozzle has a molten steel flow hole portion in which “a plurality of independent protrusion portions and/or concave portions” are disposed so that each of the protrusion portions and/or concave portions has a size satisfying the expression (1): H?2 mm and the expression (2): L>2×H mm [in which “H” shows the maximum height of the protrusion portion or the maximum depth of the concave portion, and “L” shows the maximum length of a base portion of the protrusion portion or concave portion].

Abstract: A spray nozzle which employs a locking and an alignment feature to facilitate the replacement of internal nozzle components. The spray nozzle includes a nozzle body, a swirl element and an orifice disc. The nozzle body defines a central bore which extends between a fluid receiving section and a fluid discharge section and delineates a central axis and delimits an interior locating surface for swirl element and the orifice disc. The orifice disc includes a protuberance associated with the downstream surface thereof which protrudes into the spray opening of the nozzle body.

Abstract: A fluid dispenser that includes a dosing chamber, a piston member, a fluid outlet through which fluid will be dispensed, a fluid conduit configured to convey fluid from the dosing chamber towards the fluid outlet, and a seal for sealing the fluid outlet is described.

Abstract: A fluid product spray head (40) comprises a spray orifice (45) and a spray profile (100) upstream from this spray orifice (45). Said spray profile has a swirling chamber (101) connected, during the spraying of the product, to the spray orifice (45) and to at least one non-radial channel (110) connected to the swirling chamber (101). The spray profile (100) is provided in the bottom of the spray head (40). A obturator (38) interacts with the spray orifice (45) while being able to be displaced and/or deformed between a closing position of the spray orifice (45) and an open position of the spray orifice (45). The inventive spray head (40) has an axially hollow sleeve (150) that accommodates the spray profile (100), and said obturator (38) axially displaces and/or deforms at least partially in said sleeve (150).

Abstract: A spray head provided with a plurality of nozzles defined by a base and a deflector cap. Each nozzle is provided with a deflector portion or nozzle plate for directing an upward traveling fluid in an outward direction. Furthermore, the deflector portion may be provided with steps or vanes for altering and varying the flow characteristics of a fluid spray pattern exiting the nozzle. In this manner, different portions of the fluid spray pattern may be projected to varying distances so that the fluid may cover an area having generally straight boundaries and having one or more right angles. Furthermore, the fluid spray pattern may be used to cover a triangular area. In this manner, overspray is reduced. The areas covered by independent nozzles of the spray head may be proximally located by their arrangement within the spray head so as to minimize overlap of the areas.

Abstract: A rotor plate for a sprinkler includes a water impingement surface bounded by an annular peripheral wall and having a radial center, and adapted to be impinged upon by a stream emitted from a nozzle. The water impingement surface is formed to include at least one radially extending drive channel having an entrance proximate the radial center and an exit in the peripheral wall, the drive channel curving from entrance to exit in a first direction so as to cause the plate to rotate when the stream exits at an offset from the center of rotation; at least one range channel extending substantially radially with little or no curving, from entrance to exit; and at least one brake channel curving from entrance to exit in a second direction opposite the first direction to thereby resist rotation of the plate caused by at least one drive channel.

Abstract: The invention relates to a device for spraying water, provided with a seal support (21) arranged between the body (1) and the perforated sheet (23) and in contact with the above. The seal support is mounted such as to be able to be removed from the body (1) with the joint (20). The above finds application in the production of non-woven materials.

Abstract: The water jet of a conventional water jet device is straight, bundled and impinges with its complete cross-section onto the biological structure to be separated. This renders the separating section frequently imprecise and requires an increased flow pressure. Therefore, a water jet device with a novel separating nozzle (14) is furnished. This separating nozzle (14) is furnished with a nozzle channel (15), wherein the nozzle channel (15) is furnished with one or several twisted grooves (16) at the circumference of the nozzle channel (15) and wherein the number of the twisted grooves (16) and the diameter and the length of the nozzle channel (15) are placed in such ratio that the separating jet subjected to pressure is rotated.

Abstract: A nozzle having an ejection duct structured so as to allow a better distribution of the substances on the inner panes of nasal cavities and similar, such as auricular, vaginal and rectal cavities is described. A conical central portion is mounted in the nozzle outlet portion with its base in the outlet opening providing an annular fluid outlet, the conical central portion is rigidly secured to the inner wall of the outlet portion with baffles. In different embodiments of the invention the outlet portion, the central portion, the baffles and the annular outlet opening vary in shape.

Abstract: A swirl pressure nozzle with a nozzle body is proposed, in which an inner area is provided, which has a tapered section with a largest diameter and a smallest diameter. The nozzle has an inlet which leads into the section in an essentially tangential manner, which has a diameter, such that a fluid medium can be guided under pressure through this inlet in an essentially tangential manner into the tapered section of the inner area. The section has an axial length and at its end with the smallest diameter leads into an outlet of the nozzle, which has the same diameter as well as a length. The different parameters are in a ratio to each other, that lies in the following ranges: Dp/Do in the range from 0.42 to 1.56; Ds/Do in the range from 3 to 8; the angle of opening (alpha) of the tapered section greater than 60°; Lo/Do in the range from 0.2 to 1.5.

Abstract: An indexing nozzle assembly for a trigger sprayer has a manually rotatable cap mounted for rotation on a liquid spinner of the nozzle assembly. Rotation of a cap changes the nozzle assembly between an off condition, a spray condition, a second off condition, and a stream condition of the liquid discharged from the nozzle assembly. The cap can be rotated from the off position directly to either of the spray or stream positions by rotating the cap one-quarter turn in opposite directions. A spatial relationship between an end surface of the liquid spinner and an interior surface of the cap end wall that surrounds the assembly discharge orifice improves the stream configuration of liquid discharged by the nozzle assembly.

Abstract: A high-pressure liquid spray nozzle having an elongate nozzle body having a longitudinally extending liquid flow passage, which in the illustrated embodiment, is defined in part by a plastic liquid throttling and stabilizing insert. The insert has a liquid flow passage which includes an upstream entry section, a smaller diameter downstream approach section, and an inwardly converging throat section between the upstream and downstream sections. The upstream passageway section has a scalloped cross-sectional configuration which define a plurality of longitudinally extending flutes effective for stabilizing and minimizing turbulence in the high pressure liquid flow stream directed through the nozzle such that a more concentrated, solid liquid flow stream is discharged from the nozzle with increased velocity and surface impact force for enhanced cleaning.

Abstract: The nozzle of the present invention has an internal chamber, condiment input and discharge ports in fluid communication with the internal chamber, and an extension downstream of the condiment discharge port. Preferably, the internal chamber has a flow disrupter taking the form of a funnel-shaped end portion adjacent to the condiment discharge port. The internal chamber is preferably elongated and has a larger cross section than the spout to which the nozzle is connected to reduce condiment pressure and flow speed entering the nozzle. Condiment pressure can also be reduced in the internal chamber by other types of flow disrupters: protrusions extending from the internal chamber walls into the condiment flow and/or by an insert received within the internal chamber. At the funnel-shaped end portion, condiment flow adjacent to the internal chamber side walls is preferably diverted toward the discharge port to generate crossflow and turbulence, further reducing condiment pressure and force.

Abstract: A spray head (1) for spraying fluid through a spray orifice (7), the head being provided with an expulsion channel (5), and with a closure member disposed in fixed manner in the expulsion channel (5), upstream from the spray orifice (7), the closure member comprising a closure element (9) which, at rest, closes off the spray orifice (7), and an elastically-deformable portion (10) supporting the closure element (9) for opening the spray orifice (7), the spray head (1) further being provided with a spray profile, the spray head being characterized in that the spray profile is formed on the closure member.

Abstract: The present invention relates to a fuel injector for fuel injection systems of internal combustion engines, including, among others, an actuator (10, 11, 12) and a movable valve part (5, 7) cooperating with a fixed valve-seat (22) formed at a valve-seat member (16), to open and close the valve. Arranged downstream from the valve seat (22) is a disk-shaped swirl element (25) which is provided with at least one inlet region (27) and also at least one outlet opening (29), and which includes at least one swirl channel (28) upstream from the outlet opening (29). The inlet region (27) in the swirl element (25) receives a central inflow. All swirl channels (28) originate from here, so that the fuel, which flows through the swirl channels (28) exclusively from the inside towards the outside in the radial direction, is imparted with a swirl component.

Abstract: The nozzle of the present invention has an internal chamber, condiment input and discharge ports in fluid communication with the internal chamber, and an extension downstream of the condiment discharge port. Preferably, the internal chamber has a flow disrupter taking the form of a funnel-shaped end portion adjacent to the condiment discharge port. The internal chamber is preferably elongated and has a larger cross section than the spout to which the nozzle is connected to reduce condiment pressure and flow speed entering the nozzle. Condiment pressure can also be reduced in the internal chamber by other types of flow disrupters: protrusions extending from the internal chamber walls into the condiment flow and/or by an insert received within the internal chamber. At the funnel-shaped end portion, condiment flow adjacent to the internal chamber side walls is preferably diverted toward the discharge port to generate crossflow and turbulence, further reducing condiment pressure and force.

Abstract: The present invention pertains to two inserts to be used in conjunction with the nozzles of known liquid flow through applicators. The inserts have a proximate flange detailed to fit into a wider portion of the applicator and a bristle or dabber portion at its distal end detailed to extend beyond the applicator. The bristle or dabber portions are connected by an elongated rod portion. In one embodiment the rod portion is crisscrossed with a clockwise thread and a counterclockwise thread whereby two disparate liquids may be mixed together through the flow transitory passage of the liquids in the nozzle. In the second embodiment the rod portion is essentially smooth. However, the external diameter of the rod is substantially less than the internal diameter of the passage of the applicator whereby an annular space is formed.

Abstract: The invention relates to a spray head (100) for a fluid dispenser for dispensing a fluid, the spray head being provided with an expulsion channel (1) opening out in a spray orifice (9), and with a moving closure member (10) mounted to move between a closed position, in which it closes said orifice (9), and a spray position, said closure member (10) being urged resiliently towards its closed position, and being displaced towards its spray position by the pressure of the fluid, the spray head being provided with a swirl chamber (20) of variable volume, the volume of said swirl chamber (20) being at its maximum when the closure member (10) is in the spray position, and being substantially zero when said closure member is in the closed position, said spray head being characterized in that said closure member (10) is provided with the spray orifice (9) and with swirl channels (30) which, when the closure member is in the spray position, connect said expulsion channel (1) to said swirl chamber (20), the volume and

Abstract: The invention relates to a fire extinguishing device that includes at least one liquid conduit connected at one end to a source with a fire extinguishing liquid under pressure, and at the other end having channels in a nozzle head with a plurality of nozzles. The channels of the nozzle head include a first channel connected to at least one atomizing nozzle for discharging liquid in atomized form, and a second channel which has an air intake. A foam nozzle is connected to the second channel downstream of the air intake for discharging a liquid in foamed form. The device can be utilized for effectively extinguishing class A, B, C, and E fires and can with one single handle be converted to fighting fires with either foam or water. The water can be atomized to a very high fineness by means of a relatively slight pressure of about 10 to 25 bar over a range of more than 10 meters. Far less water is used for extinguishing a fire than when using conventional fire extinguishing equipment.

Abstract: The water jet of a conventional water jet device is straight, bundled and impinges with its complete cross-section onto the biological structure to be separated. This renders the separating section frequently imprecise and requires an increased flow pressure. Therefore, a water jet device with a novel separating nozzle (14) is furnished. This separating nozzle (14) is furnished with a nozzle channel (15), wherein the nozzle channel (15) is furnished with one or several twisted grooves (16) at the circumference of the nozzle channel (15) and wherein the number of the twisted grooves (16) and the diameter and the length of the nozzle channel (15) are placed in such ratio that the separating jet subjected to pressure is rotated.

Abstract: In a spray characteristic in a direct injection system gasoline engine use electromagnetic system fuel injector, to a piston cavity a mixture of fuel and air having a combustible concentration is converged and making rich the mixture having the combustible concentration at a side of ignition plug, then an ignition performance is improved and making thin the mixture of fuel and air to a piston direction a combustion performance is improved, namely it is necessary to generate a flat inclined spray. A part of a wall face for forming the injection hole at an outlet portion of the injector is formed with V groove according to two inclination faces with optional angles against a center axial line of the injection hole or a substantially recess shape step-wise rectangular groove having different cut-off depths.

Abstract: A fuel injector with a valve body having an inlet, an outlet, and an axially extending fuel passageway from the inlet to the outlet. An armature located proximate the inlet of the valve body. A needle valve operatively connected to the armature. A valve seat proximate the outlet of the valve body. A swirl generator disk located proximate the valve seat. The swirl generator disk having at least one slot extending tangentially from a central aperture. A flat guide disk having a first surface, a second surface adjacent the flat swirl generator disk, a guide aperture, and at least one fuel passage having a wall extending between the first surface and the second surface. The wall includes an inlet, an outlet, and a transition region between the inlet and the outlet that defines a cross-sectional area of the at least one passage. The transition region is provided by a surface of the wall.

Abstract: An atomizing nozzle (40) includes a body (44) having an fluid inlet end (50), a fluid outlet end (52), and a channel (54) located between the inlet end (50) and the outlet end (52). A free floating plunger (46) resides in the channel (54). The plunger (46) has a frusto-conical portion (64) facing the inlet end (50) and a cylindrical portion (62) facing the outlet end (52). The frusto-conical portion (64) causes the plunger (46) to resist getting wedged in the channel (54) so that a mist (102) having fluid particles of uniform size is ejected from the outlet end (50).

Abstract: A fuel injection valve includes at least two throttling constrictions. The fuel is guided in so that it flows through one of the throttling constrictions with a flow component directed away from the spray orifice. Thus, at least partially compensating opposing force is exerted on the valve needle or an element (e.g., an armature) with a non-positive connection to the valve needle.

Abstract: A pressurized liquid dispensing container and valve assembly comprises an essentially upright container for containing under pressure a liquid to be dispensed and a discharge valve assembly above the container. The valve assembly includes a valve body and a nozzle having a discharge opening that is controlled by a valve. The valve includes a frustoconical valve seat formed in an end wall of the nozzle, and a frustoconical valve head which is axially movable between an inward seating position and an outward position in which the valve is open. A protective cap is screw threaded on the outside of the nozzle and has a discharge aperture in its outer end wall. The valve head has an outer end surface that normally abuts against an inside surface of the cap so as to restrict flow from the nozzle through the discharge aperture in the cap. The cap when screwed tightly holds the valve closed. Partial unscrewing of the cap adjusts the amount of valve opening and rate of liquid discharge.

Abstract: The adjustable nozzle assembly for a trigger sprayer comprises a nose bushing and an integral nozzle cap capable of being screwed upon the bushing. The nozzle cap has a discharge orifice located in its front face and a flange skirt extending from a front wall thereof. A nozzle cap flange skirt is threaded inside the rear portion thereof and an internally contoured or stepped surface is located forwardly of the threads to provide reduced diameter annular surfaces at two locations rearward of an inner wall surface of the cap and forward of the internal threads inside the nozzle cap flange skirt.

Abstract: A metal end cap for a high pressure fuel injector prevents leakage of fuel as a result of high pressures within the injector. The terminals for the solenoid are insulated from the cap by means a plurality of insulating spacers on either side of a high pressure O-ring seal. The metal end cap is sealed by means of a high press O-ring seal from the body of the injector.

Abstract: The adjustable nozzle assembly for a trigger sprayer comprises a nose bushing and an integral nozzle cap capable of being screwed upon the bushing. The nozzle cap has a discharge orifice located in its front face and a flange skirt extending from a front wall thereof. A nozzle cap flange skirt is threaded inside the rear portion thereof and an internally contoured or stepped surface is located forwardly of the threads to provide reduced diameter annular surfaces at two locations rearward of an inner wall surface of the cap and forward of the internal threads inside the nozzle cap flange skirt.

Abstract: The nozzle cap, spring valve and body assembly for a trigger sprayer comprises a nozzle cap, a spring valve and a body. The nozzle cap is capable of being screwed upon the nose bushing portion of the body. The nozzle cap has an outlet orifice located in its front face and a sleeve extending rearwardly from a front wall thereof. The sleeve is threaded inside the rear portion thereof and has an internally contoured surface on a short annular formation that is located forwardly of the threads on the back side of the front wall to provide an inner annular surface and an outer annular surface rearward of an inner wall surface of the nozzle cap and forward of the internal threads inside the sleeve. The nose bushing portion of the body has a cavity in which is received the spring valve.

Abstract: In an electromagnetically actuatable fuel-injection valve for injection systems for internal-combustion engines, the valve includes a valve housing, an ejection opening, a magnet winding, a closure element which is connected to an armature associated with the magnet winding, and a pin which is located in the ejection opening and has a conical region, the conical region being within or at a plane formed by the outer edge of the ejection opening. In this way, the formation of drops at the edge of the ejection opening is prevented so that a fine atomization is obtained.

Abstract: A multi-purpose nozzle assembly for a liquid dispenser includes a rotatable nozzle cap having an internal sleeve in engagement with the end of a fixed plug located within an outlet member of the dispenser containing a discharge conduit. An end wall of the cap has a smooth inner surface confronting the end wall of the plug, and the plug and sleeve have two discrete passageways formed between the discharge conduit and the discharge orifice located in the cap end wall. The passageways are capable of being opened and closed in selected rotative positions of the cap in alternating off, stream and spray positions.

Abstract: A fluid dispenser, preferably a pistol grip type hose nozzle, affords no flow, solid misty cone spray and solid jet spray capabilities and contains a fluid flow rate control feature for instantaneous adjustment of the rate of fluid flow through the dispenser.

Abstract: A burner operating on liquefied petroleum gas comprising a tubular barrel having an inlet for the liquefied petroleum gas. The end of the tubular barrel is provided with a swirl chamber that debouches into a calibrated central injector port. A cylindro-ogival end piece is attached to the end of the barrel and the axial position of the end piece with respect to the injector port is varied to vary the flow rate of the burner.