Abstract: A combustor can include: a combustion chamber; a cap covering the combustion chamber; a first swirler inlet cup passing through the cap and having a first length and a first bell mouth; a second swirler inlet cup passing through the cap and having a second length and a second bell mouth; and a third swirler inlet cup passing through the cap and having a third length and a third bell mouth, wherein the first length is different from the third length, and wherein the first bell mouth is different from the third bell mouth. The first, second, and third swirler inlet cups can have different diameters, respectively.

Abstract: A combustion burner includes a fuel nozzle configured to blow in fuel gas of solid fuel and air, a combustion air nozzle configured to blow in air from the outside of the fuel nozzle, and at least one flame stabilizer arranged on the axial center side at a distal end of the fuel nozzle. The flame stabilizer is arranged at the distal end, and has a flame stabilizing member whose width increases in a direction toward the distal end, and a straightening vane having a plate shape and being arranged on an extension of the flame stabilizing member on the upstream side in a flow direction of the fuel gas. An abrasion-resistant member is arranged on a wide width surface of the flame stabilizer, and an abrasion-resistant member is arranged on at least a part of the straightening vane.

Abstract: An audio amplified combustion system is described that has a fuel injector a positioned proximate to a speaker so that a flame moves in concert with audio emitted from the speaker. A projection column and projection top can be positioned above the cone of the speaker to define a volume for the combustion. Various apparatuses, methods, and systems for keeping the speaker cool are also described. Coating on various parts of the system to increase or decrease emissivity or absorptivity of various parts can keep the speaker cool. In addition, a control unit can cause the speaker to “pant” or vibrate at a low or high frequency to induce convective and keep the speaker cool. These and other features of the audio amplified combustion system are described herein.

Abstract: A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler includes a tip body having an inlet and an outlet defining a longitudinal axis therebetween. The tip body includes a slot on an inlet side of the tip body extending in a direction parallel to the longitudinal axis. The slot includes an opening facing the inlet side of the tip body and a recess formed at an angle with respect to the longitudinal axis to at least partially retain a pivot pin. A solid fuel nozzle assembly for issuing a flow of mixed solid fuel and air to a boiler includes a solid fuel nozzle tip with a tip body, as described above, and a locking plate operatively connected to the tip body to assist in retaining a pivot pin within the slot of the tip body.

Abstract: A compact hair dryer comprising a main body having a front and a rear portion. The front portion comprising a first duct surrounding a second duct, air flow passing through the second duct being heated by a heating means, air flow passing through the space between the first and second ducts being insulated from the heated air flow in the second duct. The second duct is shaped like a truncated cone of revolution, wherein a distribution means is arranged at the base of the cone to determine the amount of air flow passing through the space between the first and second ducts. A barrel extension comprising at least one peripheral tube surrounding a central tube connectable to the outlet of the hair dryer. The second duct of the hair dryer, at the air outlet of the hair dryer, arranged to be connectable to the central tube of a barrel extension.

Abstract: Systems and methods are disclosed that may include providing a dual fuel burner in a superheater truck to burn wellhead gas produced from a wellhead in a first fuel burner and burn at least one of methane, ethane, propane, butane, gasoline, diesel, liquified natural gas (LNG), natural gas liquids (NGLs), and wellhead gas in a second fuel burner to heat water and/or other chemicals used in hydrocarbon production and/or well completion processes, including, but not limited to hydraulic fracturing (fracking). The first fuel burner may be integrated with the second fuel burner such that fuel rail fingers of the first fuel burner are interstitially spaced with fuel rail fingers of the second fuel burner. The first fuel burner and the second fuel burner may be operated independently from each other. The first fuel burner and the second fuel burner may alternatively be operated simultaneously with each other.

Abstract: A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.

Abstract: A solid fuel/oxygen burner including an upstream section, an intermediary section, and a downstream section, a solid fuel conduit extending through the intermediary and downstream sections for transporting a mixture of solid fuel in a transport gas, the solid fuel conduit having a greater cross-sectional area in the downstream section than in the intermediary section, and a tubular fuel separator positioned within the solid fuel conduit in the downstream section, the fuel separator being bounded by an inlet plane and a outlet plane, the fuel separator dividing the fuel conduit into an inner nozzle having a cross-sectional area and an outer annular nozzle having a cross-sectional area, wherein the ratio of the outer nozzle cross-sectional area to the inner nozzle cross-sectional area measured at the outlet plane is greater than 1.

Abstract: A wide-flame solid fuel/oxygen burner including a fuel nozzle having an aspect ratio of at least about 2 defined by the ratio of a fuel nozzle width, W, measured along a major axis centerline, to a fuel nozzle height, H, measured along a minor axis centerline, and long walls spaced substantially symmetrically from the major axis centerline, the fuel nozzle having an inlet width, WN; and a pair of guide vanes positioned on either side of the major axis centerline between that centerline and an adjacent long wall, the guide vanes diverging from the major axis centerline in the flow direction by an angle such that the guide vanes are closer together at an upstream end and farther apart at a downstream end, thereby forming a central diffuser between the guide vanes and an outer converging nozzle between each guide vane and one of the long walls.

Abstract: A burner incorporating a pilot cone and a mounting insert is provided. The pilot cone is constructed as a pilot cone assembly which is decoupled from the mounting insert. Further, an operating method for increasing the service life of a burner which incorporates a pilot cone assembly and a mounting insert is provided. The pilot cone assembly has a cone side and incorporates at least one further side where the further side is arranged to be essentially parallel to one of the sides of the mounting insert and spaced apart from it, so that between the further side and the side of the mounting insert there is a defined gap. In an operation of the burner, the gap is significantly reduced by the thermal expansion in at least at one point of contact between the further side and the side of the mounting insert. Finally, an assembly method is provided.

Abstract: A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.

Abstract: An aspirating induction nozzle for vertical connection to the outlet of a pressurized exhaust gas flow comprises a central nozzle surrounded by a wind band and one or more guide vanes. Ambient air is induced into a mixing zone within the central nozzle to dilute the primary effluent and increase the volumetric discharge flow rate to achieve greater plume lift. The mixing zone within the central nozzle is protected from crosswind influences, which would otherwise diminish plume lift.

Abstract: Foam dispensers, refill units for foam dispensers, and liquid pumps for use in foam dispensers are disclosed herein. In one embodiment, an inverted foam pump includes a compression chamber having an inlet valve and an outlet valve. The compression chamber is in fluid communication with a flow restrictor, an atomizer, a mixing chamber, a foaming chip and an outlet. The inlet valve, outlet valve, flow restrictor, atomizer, mixing chamber, foaming chip and outlet extend along a common axis. An air inlet is included that extends into the mixing chamber; the air inlet is an opening to atmospheric pressure. During operation, the liquid pump is located below the liquid container and liquid flowing from the compression chamber is accelerated and atomized. The atomized liquid enters the mixing chamber at a velocity sufficient to draw in air from the air inlet to mix with the liquid to form a foam.

Abstract: The present invention provides a shower apparatus which allows a user to enjoy spray of water with a voluminous feel even when a small volume of water is discharged as well as with a comfortable stimulus sensation of an instantaneous flow rate of the spray varying greatly. The shower apparatus periodically varies a volume of air taken into an aeration unit by periodically changing a traveling direction of a water stream ejected to the aeration unit from a throttle unit and produces pulsating spray by varying the instantaneous flow rate of bubbly water discharged from a nozzle unit.

Abstract: An apparatus and method for forming a fusible coating or structure comprising a combustor that is operative to combust a fuel and contain the resulting flame to produce combustion products; means for cooling the combustion products to produce a hot carrier gas stream; and means for introducing fusible material into the hot carrier gas stream.

Abstract: A sanitary functional unit with a housing releasably fastened to the water outlet of a sanitary outlet fitting, the housing having an outflow-side housing end face with outflow openings. The outflow-side housing end face has at least one slot, opposing longitudinal sides of which form turning engagement surfaces or tool engagement surfaces for a turning tool that is releasably inserted into the slot, and the housing of the functional unit is rotatably held on the water outlet of the outlet fitting and/or the housing end face is mounted rotatably in the housing. Using the turning tool in the slot, a pivotably mounted housing end face in the housing can be easily aligned and/or the turning force required for fitting and removing a screw connection provided between the outer housing periphery and the inner fitting periphery can be conveniently transferred to the housing without requiring special turning tools.

Abstract: A sanitary fixture with a mounting housing which has a thread for fastening to a mating thread provided on the water outlet of a sanitary outlet fitting. The mounting housing has a downstream housing end side with flow-through holes, and wherein at least one insertion part can be inserted into the mounting housing as far as an insertion stop. The fixture has an aerated jet regulator or is configured as such, so a circumferential wall of the mounting housing borders at least one aeration duct at least in a subregion of at least a double-walled configuration, and the at least one aeration duct, which is open towards the downstream housing end side, opens out in at least one aeration opening leading into the housing interior of the mounting housing.

Abstract: In the present invention, a new air-pressure utilizing water-saving shower head which takes in external air to increase the spray pressure is introduced. According to the present invention, this water-saving shower head comprises, a holding space for water inside, a body that contains an air hole at the bottom to take in the external air, the internal cross-sectional areas decreasing and then increasing, an air intake hole connecting into the air hole of the upper body, a pressure applying unit which mixes the external air coming through the air hole with the novelty of the pressure of the water flow movement, positioned at the front side of upper body and consists of an extended spray tube with multiple spray boards protruding outward.

Abstract: A shower head includes a nozzle, a connector mounted on an open top of the nozzle, a fastening member secured on the open top of the nozzle and abutting the connector to limit the connector on the nozzle, and a bushing mounted in the connector. Thus, when the water flows through the shower head, the ambient air is introduced through the connector and the bushing to break the vacuum state in the shower head and to perturb the water flow in the shower head so as to produce a turbulent flow in the shower head so that the water flow injected from the nozzle is broken and divided into multiple straight water beams and multiple irregular water bubbles so as to increase the flushing angle and area of the shower head.

Abstract: A method of manufacturing gas and/or fuel swirlers for fuel injectors and combustor domes and cone-shaped swirlers so manufactured are disclosed. The disclosed conical swirlers feature cut-through slots on a cone-shaped body. The contour and spacing of the slots are configured and arranged to accommodate a wide range of requirements for fluid flow areas and swirl strengths. Preferably, the cone-shaped swirlers can be manufactured by wire EDM processing. More preferably, multiple cone-shaped swirlers can be manufactured simultaneously by nesting swirler blanks in a stack and wire EDM processing the stack as a unit. The cone-shaped pinwheel swirler fits well into various fuel injector heads, enabling the injectors to reduce the frontal surface area and flat area for minimal potential of carbon formation.

Abstract: A fuel injection nozzle includes a body member having an upstream wall opposing a downstream wall, and an internal wall disposed between the upstream wall and the downstream wall, a first chamber partially defined by the an inner surface of the upstream wall and a surface of the internal wall, a second chamber partially defined by an inner surface of the downstream wall and a surface of the internal wall a first gas inlet communicative with the first chamber operative to emit a first gas into the first chamber, a second gas inlet communicative with the second chamber operative to emit a second gas into the second chamber, and a plurality of mixing tubes, each of the mixing tubes having a tube inner surface, a tube outer surface, a first inlet communicative with an aperture in the upstream wall operative to receive a third gas.

Abstract: A gas burner (10), preferably a premix burner, comprising a support (12) which has a central gas inlet port for supply of gas into a gas supply chamber. The gas supply chamber is enclosed by a perforated metal plate (22). The perforated metal plate is connected at the bottom to the support through a base section. The perforations in the perforated metal plate provide a burner deck (20). The burner deck has an overall porosity which is equal to or lower than 11%. The present invention also provides use of this burner, e.g. in heat exchangers.

Abstract: A fan assembly for creating an air current is described. The fan assembly includes a nozzle mounted on a base housing a device for creating an air flow through the nozzle. The nozzle includes an interior passage for receiving the air flow from the base, a mouth through which the air flow is emitted, the mouth being defined by facing surfaces of the nozzle, and spacers for spacing apart the facing surfaces of the nozzle. The nozzle extends substantially orthogonally about an axis to define an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth. The fan provides an arrangement producing an air current and a flow of cooling air created without requiring a bladed fan. The spacers can provide for a reliable, reproducible nozzle of the fan assembly and performance of the fan assembly.

Abstract: An atomizing nozzle for two substances, which is used for spraying a liquid with the aid of a compressed gas, is provided. The atomizing nozzle includes a mixing chamber, a liquid inlet that extends into the mixing chamber, a compressed gas inlet which extends into the mixing chamber, and an outlet located downstream from the mixing chamber. An annular gap is provided which surrounds the outlet and discharges compressed gas at a high speed. The atomizing nozzle is used for purifying flue gas.

Abstract: A plumbing fixture including, but not limited to, an aspirating type shower head operates to add a selected scent to the spray water. The showerhead utilizes a venturi assembly where the water supply passes through a venturi. A negative pressure is created at the high velocity water jet stream point, near the narrow area of the venturi. A number of small openings in the venturi, to a surrounding air chamber, allow air from the chamber, to be drawn into the venturi. The air chamber has inlet openings for the aspiration of room air. At a portion of these inlet openings is a quick connect port to receive a scented cartridge. The scent cartridge is positioned within the quick connect port of the showerhead. Room air is drawn through and over the scented material where the high velocity air picks up scent molecules for expulsion from the outlet.

Abstract: A gas jet nozzle 1 is provided that has a relatively simple mechanism capable of jetting high-pressure gas for a long period. The nozzle 1 jets high-pressure gas from a high-pressure gas bottle 12. The nozzle 1 has a jet port 2 for jetting high-pressure gas by communicating with the gas bottle 12. The nozzle 1 further has a jet passage 3 for directing to a target the gas jetted from the jet port 2 and jetting the directed gas from the front end 4 of the passage. The nozzle 1 includes an air suction part 5 for sucking atmospheric air into the gas jetted from the jet port 2.

Abstract: An air/gas premix burner, comprising: a fan for sending the air/gas mixture to a combustion head; a gas valve for regulating admission of the combustible gas; an air/gas mixer, which comprises a device for localized loss of pressure; and a combustion head. The premix burner is characterized in that the air/gas mixer comprises at least two channels for mixing the air with the gas; in addition, a channel is provided with an open/close element designed to regulate the flow rate of the mixture.

Abstract: A shower head with a housing and a jet outlet surface can be achieved with an example embodiment of the invention. An adjuster device is provided on one side, for adjusting the supply of water to individual or all regions, into which the jet outlet surface is divided. The above can be a central small region and the region surrounding the above. Furthermore, an air supply device is provided for aerating the water jets. The air supply device is simultaneously operated with the switching between the regions.

Abstract: A sanitary outlet unit (1) is provided, including an outlet armature (2), with a flow regulator (4) in a region of the water outlet (3) thereof, wherein an aeration device is provided for aeration of the water flow. The outlet unit (1) provides that the aeration unit (5) is located in the outlet armature (2) and/or in at least one water line leading to the outlet armature (2) separately from the flow regulator (4). Through the spatial separation of the functions of flow shaping or water discharge and the aeration of the water flow, there are many possible embodiments for optionally providing the water outlet (3) of the sanitary outlet unit (1) with an extremely thin design.

Abstract: Using a simple structure, a new function is added to a liquid such as tap water by taking a gas into the liquid. The bubble-generating structure of the present invention includes (1) a water-discharging nozzle, which is provided inside a pipe, (2) a receiving member, which is situated a specified distance from the water-discharging nozzle and which includes a flow path for passing liquid emitted from the water-discharging nozzle, and (3) an air hole provided in such a way as to take air into a space between the water-discharging nozzle and the receiving member. By taking in air due to a suction force that is generated when the liquid passes along the flow path, bubbles are generated in the liquid. When such a structure for generating bubbles in the liquid is included in a showerhead, a person taking a shower using the showerhead can have a healthy and comfortable feeling while showering.

Abstract: A foam production pump includes a button (110) having an outlet port (112), a housing (120), a closure (130) for mounting the housing to a container, a stem (170) performing an up-and-down motion, a shaft (150) mounted in the lower part of the button, a foam net (158) for producing foam, a housing cap (140) for isolating an air space and a solution space of the housing from each other, an air piston (126), a solution piston (180) mounted at the outside of the stem, an air valve (128) for opening and closing a piston air hole, a first compression spring (160) disposed between the shaft and the solution piston, a second compression spring (165) disposed between the shaft and a support groove of the housing cap, and an opening and closing member (200) for opening and closing a lower end inlet port of the housing when pumping.

Abstract: An aerating nozzle assembly has at least one aerating nozzle, and each aerating nozzle has a body, an annular air casing and at least one air tube. The body is tubular and has a channel and a constriction. The constriction is formed around the body and has multiple air holes formed through the constriction and communicating with the channel. The annular air casing is hollow and is mounted around the air holes in the constriction and has an air chamber, an annular surface and at least one air supply hole formed through the annular surface. The at least one air tubes are mounted securely respectively in the air supply holes. Accordingly, the air holes around the constriction allow air to be drawn into the liquid and more completely and homogenously aerate the liquid.

Abstract: A scent-delivery system is disclosed that utilizes as least one of (1) a venturi-effect delivery device for promoting evaporation of volatile compounds or (2) a pendulum for energy-efficient movement of solid or liquid forms containing the volatile compounds. When the venturi-effect delivery device is used, a flow of air therethrough drives the evaporation of volatile compounds. The pendulum can be used to move the venturi-effect delivery device to generate the relative movement between the air and the device, hence creating a “flow” of air.

Abstract: Methods and devices are provided for aerosolizing medicament to be inhaled by a user. A housing is provided with an aerosol generator contained within the housing. A medicament feed system supplies medicament to the aerosol generator. A mouthpiece has separate medicament and air flow passages. The medicament flow passage provides aerosolized medicament from the aerosol generator to an outlet of the medicament flow passage, and the air flow passage has an inlet in fluid communication with an ambient atmosphere. The outlets of the medicament and air flow passages are provided at an end of the mouthpiece to provide simultaneous flows of medicament and air that mix in the user's mouth upon inhalation by the user at the end of the mouthpiece.

Abstract: The present invention relates to a spill return nozzle, particularly suitable for use in gas cooling, characterized in that, alongside the ducts for discharge and return of the flow of liquid, it is provided with means suitable to convey a flow of air toward the outlet of the nozzle. With the nozzle according to the present invention it is possible to obtain an output jet with optimized shape and dimensions of the atomized droplets, thereby increasing cooling efficiency in the case of use of the nozzle in gas cooling processes.

Abstract: The invention relates to a cleaning lance with a nozzle tube (1), on whose outlet-side end there is a discharge nozzle (2), which can be switched by means of a switching mechanism between a high-pressure position and a low-pressure position. In order to be able to perform both the foam application and also the high-pressure wash with such a cleaning lance, without requiring manual switching of the operating function on the cleaning lance itself, it is provided that the nozzle tube (1) has an air inlet (3), which can be closed with a valve (4), wherein the valve function is coupled to the switching mechanism of the discharge nozzle (2), such that the valve (4) closes the air inlet (3) when the discharge nozzle (2) switches from its low-pressure position into its high-pressure position.

Abstract: A plumbing fixture including an aspirating type showerhead operates to add a selected scent to the spray water. The showerhead utilizes a venturi assembly where the water supply passes through a venturi. A negative pressure is created at the high velocity water jet stream point, near the narrow area of the venturi. A number of small openings in the venturi, to a surrounding air chamber, allow air from the chamber, to be drawn into the venturi. The air chamber has inlet openings for the aspiration of room air. At a portion of these inlet openings is a quick connect port to receive a scented cartridge. The scent cartridge is then inserted into the quick connect port of the showerhead. Room air is then drawn through and over the scent cartridge where the high velocity air picks up scent molecules from the scented wick within the cartridge.

Abstract: Spray nozzle apparatus and method. The apparatus can include a body, a spray orifice, a filter, and an insert. The body can have a spray outlet portion. The spray outlet portion can terminate in a spherical dome. The spray orifice can be included in the spray outlet portion and positioned before the spherical dome in a flow path. The spray orifice can be substantially V-shaped. The insert can be positioned at least partially in the spray outlet portion and can include an entry shaft having a substantially rectangular cross section and at least one projection.

Abstract: A snow making apparatus comprises at least one water/air nozzle for ejecting a water/air mixture. The snow making apparatus comprises at least one jet pump which operates with water as a driving medium and mixes air with the water and compresses the water/air mixture in order to form the water/air mixture which is supplied to the at least one water/air nozzle. A method of operating a snow making apparatus comprises corresponding features. The snow making apparatus and method enables unused energy to be used in a particularly effective manner.

Abstract: A fluid amplification and mixing device is provided, which includes a siphon plug defining a first portion of a passageway being configured to receive a first fluid. The siphon plug further defines at least one opening configured to receive a second fluid in communication with the passageway. A venturi defines a second portion of the passageway for receiving a mixture of the first and second fluids. The venturi further defines an input port configured to receive a third fluid and at least one accelerator chamber communicating with the input port and the second portion of the passageway. A siphon barrel defines a third portion of the passageway being configured to receive a mixture of the first, second and third fluids and supply the mixture to a combustion chamber thereof.

Abstract: A spray apparatus for coating material, in particular for coating powders, contains a spray outlet spraying the coating material, a shaping air outlet in the form of a plurality of holes shaping the spray jet and an ambient-air passage radially configured between the spray outlet and the holes to aspirate ambient air by means of the flow suction effect of the spray jet and/or of the shaping air flow.

Abstract: A spray nozzle assembly comprising a nozzle body and a separate nozzle body insert adapted for removable snap action engagement with the body. The nozzle body insert defines a liquid flow passage that includes an inlet section for communicating with a liquid inlet, a metering orifice for accelerating the liquid flow stream, and a downstream expansion section. The body insert further includes a venturi passage communicating with the expansion section for drawing ambient air into the liquid flow stream for stabilizing the liquid prior to discharge from the nozzle. In the illustrated embodiment, the expansion chamber communicates with a transverse passage of the nozzle body, which in turn communicates with a laterally oriented discharge orifice.

Abstract: Disclosed is a dense fluid spray cleaning apparatus comprising a gas supply (3) for providing a predetermined amount of a gas to an enhanced joule-thompson condensation reactor (2) and for providing gas to a propellant generator (4), a premix chamber (6) for receiving a solid particulate from the enhanced joule thompson condensation reactor and heated gas from the propellant generator, and a mixing chamber (8) for receiving the solid particulate and the heated gas and producing a spray stream containing the solid particulate.

Abstract: The present invention includes a nozzle device and method for forming a composite fluid. The nozzle device generally comprises a nozzle portion connected to a main body. The main body includes an inner axial bore extending therethrough. An annular wall extends radially therefore and an annulus extends from an outer perimeter of the annular wall. The annulus and the annular wall define an annular chamber at least partially open to the atmosphere. A portal fluidly communicates the bore with the annular chamber. The nozzle portion includes a converging nose section also having an internal axial bore extending therethrough. An annular collar extends from the nose section and disposes at least partially within the annular chamber. A first tube for transporting a first fluid disposes within the axial bore of the main body and nose section, terminating at an exit port of the nozzle section.

Abstract: The invention relates to a device for pumping a liquid from a packaging, for the distribution thereof in a heated, foamed or emulsified form, comprising a sub-assembly for aspiration by venturi effect which can be connected to the tubing of a pressurized liquid flow generator. Said sub-assembly comprises a body with a liquid flow inlet duct, opening out in an aspiration chamber and at least one aspiration duct for the liquid contained in the packaging. The invention is characterized in that the aspiration sub-assembly comprises a nozzle and fixing and opening means, connecting the nozzle to the packaging and connecting the aspiration duct with the liquid inside the packaging. The invention is of application to the production of cappuccinos or other foamed drinks.

Abstract: An apparatus, system and method for suppression of fires are provided. In accordance with one embodiment of the invention, a housing is provided with a first opening (or set of openings), a second opening (or set of openings) and a flow path defined between the first and second openings. A fire-suppressing gas is produced, such as from a solid propellant composition, and is introduced into the flow path in such a way that a volume of ambient air is drawn from a location external to the housing, through the first opening and into the flow path. The volume of ambient air may be subjected to an oxygen-reducing process and mixed with the fire-suppressing gas to form a gas mixture. The gas mixture is discharged from the flow path through the second opening and into an associated environment for suppression of a fire located therein.

Abstract: An eductor for mixing liquids and solid particles includes a nozzle, an initial mixing chamber, a first diffuser, an intermediate mixing chamber and a second diffuser. The nozzle includes a semicircular nozzle outlet that is offset from a centrally-located first axis. Motive flow is accelerated through the nozzle through a first and second acceleration segment. Solid particles are added to the motive flow in the initial mixing chamber and directed to the first diffuser. Each diffuser includes an acceleration and a deceleration segment separated by an elliptically-shaped throat. The intermediate mixing chamber is located between the first and second diffusers.

Abstract: An internal cleaning apparatus includes a rotary shaft which, having a liquid flow passage, is provided so as to be axially rotatable, a revolving rotary shaft which, having a liquid flow passage connected to the liquid flow passage and being provided in a direction substantially perpendicular to the rotary shaft, is installed so as to be revolvable about the rotary shaft and axially rotatable, and a nozzle provided at a leading end of the revolving rotary shaft, wherein a gas flow passage is provided along the liquid flow passage of each of the rotary shaft and the revolving rotary shaft from a gas inflow opening provided in the rotary shaft, wherein a configuration is such as to eject a gas-liquid mixture flow having a gas supplied from outside the object to be cleaned mixed with the liquid ejected from the nozzle.

Abstract: A cap with a suction type spray head includes an air guiding chamber, an intake passage, an outgoing passage, a liquid sucking mouth and an air pressure balancing aperture for a container with a sprayer. The liquid in the container can be sucked out due to air pressure difference between the sucking mouth and the interior of the container. The outgoing passage at the outer end thereof is a spraying outlet, which face the liquid sucking mouth so that the liquid out of the liquid sucking mouth is atomized with the air sprayed from the spraying outlet.

Abstract: The present invention is directed to a nozzle capable of producing a high impact waterjet when supplied with a source of ulta-high pressure liquid. The nozzle is constructed and arranged to infuse fluid into a high velocity stream of liquid passing through the nozzle to create a bubble rich waterjet. When the waterjet strikes against a surface the bubbles implode, amplifying the impact of the water against the surface.