Abstract: A rocket motor and rocket motor feed system are disclosed. The rocket motor feed system includes a sonic choke which passively regulates the mass flow rate of gaseous propellant passing through the sonic choke. An injector is provided and isolates the upstream feed line of the rocket motor feed system from a combustor. Regenerative cooling circuits are disclosed. Self-pressurised gaseous propellants may be used with the rocket motor and rocket motor feed system. Suitable propellants are disclosed. Bi-propellants may be used. The sonic choke may provide a ratio of oxidiser:fuel to a combustor. Rocket motor feed systems with separate fuel and oxidiser branches are also disclosed. A rocket motor utilising such a feed system is disclosed.

Abstract: A spray head for atomising fluid ejected from a fluid conduit, the spray head comprising: a body having a longitudinal bore for receiving the fluid conduit such that a distal tip of the fluid conduit extends to a distal end of the longitudinal bore, the body being configured to direct a balanced flow of gaseous medium over the distal tip of the fluid conduit, when received within the longitudinal bore, so as to promote atomisation of the fluid as it is ejected from the distal tip of the fluid conduit, wherein the body comprises at least two radially separable segments, each of which defines part of the longitudinal bore, said at least two segments when combined forming said body having a longitudinal bore, whereby the fluid conduit is received within the longitudinal bore by locating said at least two segments around the fluid conduit.

Abstract: A scrubber system may include a scrubber housing including a vertically extended cleaning space, an inflow chamber coupled to a bottom portion of the scrubber housing, and first and second inflow portions, each of which is configured to supply a gas into the inflow chamber. The inflow chamber may include a mixing space, and the mixing space may be connected to the cleaning space. The first inflow portion may include a first connection pipe coupled to the inflow chamber to provide a first connection path and the second inflow portion may include a second connection pipe coupled to the inflow chamber to provide a second connection path. The first and second connection paths may be extended toward the mixing space in opposite directions, respectively, and may be connected to opposite portions of the mixing space, respectively.

Abstract: A fuel injector includes an injector body with a fuel chamber configured to receive fuel from a fuel line, an injector tip provided at an end of the injector body, and one or more nozzle assemblies provided in the injector tip. The one or more nozzle assemblies have a fuel channel in fluid communication with the fuel chamber, a premixing tube fluidly connected to the fuel channel, and a port fluidly connected to the premixing tube. The premixing tube has an orifice providing an outlet for the injector tip.

Abstract: The invention relates to a modular system for weed control for a rail vehicle. The modular system has a control module including a control unit and a control module. The control unit is configured to generate a first set of control signals for controlling valves and mixers in an herbicide and mixing module configured to mix an herbicide mixture and to generate a second set of control signals for controlling valves of a nozzle assembly. The herbicide and mixing module has a plurality of containers for receiving different herbicides. The nozzle assembly has a first set of nozzles for spraying herbicides, and the control module, the herbicide and mixing module, and the nozzle assembly can each be individually fixed to a carrier element in a reversible manner.

Abstract: A modified toilet tank that serves as a fold-down urinal and fully functioning standard toilet in one to provide a more effective and mess-free way for males to use the toilet when urinating. The present urinal toilet device is more sanitary to use, eliminates messes on floors and toilet seats, is easier to use, and conserves water.

Abstract: An adjustable atomizer nozzle assembly includes an assembly body; first and second side nozzle components, including compressed air tubes, liquid tubes, liquid heater, air heater, atomizer nozzles, which are mounted with an impingement angle to create a combined aerosol stream with reduced droplet size. An adjustable atomizer nozzle system includes a nozzle assembly; a mast assembly; a self-coiling line assembly, including a compressed air line, a pressurized liquid line, and a power line; a pressure tank; a compressor; a power supply; a mounting base; and wheels. A nozzle assembly can include one atomizer nozzle with a liquid heater. A method of use includes providing an adjustable atomizer nozzle system, configuring impingement for spraying, spraying a room, configuring impingement for fogging, and fogging the room.

Abstract: The invention relates to a nozzle system for a delivery device for liquids, which comprises a nozzle and a device which fixes the nozzle in the delivery device. The device has a liquid reservoir from which a liquid is forced through a nozzle under pressure to deliver the liquid. The nozzle is secured by a holder on the delivery device. This holder may itself be secured by a second holder, e.g. in the form of a check nut, or the check nut itself may be the holder. According to the invention at least part of the outer surface of the holding device is micro- or nanostructured.

Abstract: A gas supplying apparatus for supplying deposition gas onto a substrate surface, the gas supplying apparatus comprising: a gas supplying ring with one or more gas supplying channels formed along the interior of the gas supplying ring and with a plurality of gas distribution channels directed toward a center of the gas supplying ring; and a plurality of adapters with gas nozzles connecting to the gas distribution channels, respectively, that detachably connect to the interior of the gas supplying ring, wherein the gas nozzles have a variety of injection configurations.

Abstract: An atomization chamber apparatus used for aircraft pesticide delivery, which has an open ended walled chamber, divided into left and right sections, each having outer and inner segments, each segment having a top and a bottom wall, the outer segments having a same radius concave upper wall and a convex lower wall, while the inner segments have a same radius convex radius upper wall and a concave lower wall. A nozzle injector connectable to a fluid pesticide source is laterally disposed in an inner segment. The nozzle is chosen such that exiting pesticide will not impact the chamber walls, and the radii of the segments are chosen such that the speed of pesticide atomization by the incoming air is slowed down to reduce fines upon pesticide impact, and the speed of the pesticide air mixture on exiting the chamber is increased to substantially match the airspeed of the aircraft.

Abstract: A gas burner, for example, for domestic cooking appliances, includes a bowl-shaped body associated with a gas injector, a toothed crown with a plurality of flame ports placed over the body, and an upper cap to close the burner top. The burner also has a peripheral grove that is formed on at least a part of the external surface of the toothed crown in order to increase the flame stability.

Abstract: An oil mist discharger (1) is disclosed. The oil mist discharger (1) utilizes a flow regulator (27) which comprises a main passage (28), sub-passages (29) and an agitation chamber (30). Differential pressure between air and oil is created and utilized in drawing oil into an oil feed chamber (39) to be mixed with air. The oil-containing air is sent to the flow regulator (27) and fed into the agitation chamber (30) via the main passage (28) and sub-passages (29) in jet streams to be transformed into a well blended oil mist, which is discharged from a discharge nozzle.

Abstract: A spray generator is provided that generates a spray of droplets by the interaction of opposed jets of fluid. The generator comprises a rigid central member defining a central axis, and fluid passageways formed in a block of material leading to two or more pairs of opposed fluid outlets. The outlets of each pair are separated from each other and arranged to generate opposed jets of fluid along an axis parallel to the central axis. Further, the pairs are equi-angularly spaced about the central axis. The outlets of each pair are maintained in axial alignment with each other and at a predetermined axial spacing from each other by a rigid connection between the central member and the block of material. The two or more pairs of outlets together generate a spray of droplets extending 360 degrees about the central axis.

Abstract: There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.

Abstract: Torch tip for a torch, said tip adapted to be in fluid communication with a fuel gas and oxygen source for generating a flame, the torch tip including a tubular or substantially tubular body having a plurality of spaced orifices therein, at least one of the orifices being formed in a planar surface so as to allow the formation of a circular orifice therein, the orifice thereby emitting, in operation, a stable and even flame. In a preferred embodiment, all of the orifices are so formed, and direct a flame towards a common point.

Abstract: An atomizer foil is provided in an atomizer to mix liquid into an air flow passing through the flow duct of the atomizer. In order to achieve an even distribution of liquid drops in the air cone discharged from the atomizer, the liquid is conveyed out on the atomizer foil via outlets disposed symmetrically on the edge of the leading side. Each outlet is connected with an inlet chamber in the atomizer foil via an outlet duct.

Abstract: A method and an appliance are described for atomizing liquid fuel for a firing installation, preferably for a combustion chamber of a gas turbine installation, having a nozzle arrangement through which the pressurized liquid fuel passes and is atomized to form a fuel spray. The invention is characterized by the fact that after the passage of the fuel through the nozzle arrangement (3, 4), at least two, spatially separated fuel sprays (5, 6) are formed in which the fuel is mainly present in the form of individual fuel droplets (16), and in that the fuel sprays (5, 6) each have a propagation direction relative to one another such that the fuel droplets (16) of one fuel spray (5) collide with the fuel droplets (16) of the other fuel spray (6) in such a way that, during the collision of the fuel droplets (16), a droplet cloud (9) is formed with new fuel droplets (17) whose diameter is smaller than that of the colliding fuel droplets (16).

Abstract: The colliding-jet nozzle which includes a nozzle body portion having a proximal end, a distal end and a fluid inlet defined partially therethrough. The body portion also includes first and second outlet ports disposed through the nozzle body portion for directing fluid from the inlet outwardly therefrom. A proximal end of a first hollow tube is attached and in fluid communication with the first outlet port and a distal end of the first hollow tube extends outwardly therefrom. A first end of a second hollow tube is attached and in fluid communication with the second outlet port and a second end of the second hollow tube is axially aligned with the distal end of the first hollow tube to define a gap therebetween such that fluid exiting from the first outlet port and fluid exiting from the second outlet port directly collide with each other to atomize fluid.

Abstract: A head for generating and spraying foam is provided. The head is particularly useful in a fire extinguisher. The head includes a nozzle for spraying foam in a praying direction, at least two conduits for supplying a fluid, and a boss. A. wall at the outlet end of each conduit is oriented approximately perpendicular to the spraying direction. The conduits each emerge into a base of the nozzle via openings. A fluid is supplied to the conduits. During travel of the fluid to the nozzle, the fluid encounters a double deflection. The first deflection is from the wall within the conduit towards the boss. The second deflection is from the boss towards the wall of the nozzle. This double deflection path of travel causes the fluid to become completely emulsified with ambient air to create a large volume of high quality spraying foam.

Abstract: An improved air-assisted spray nozzle assembly includes a section for receiving liquid and gas streams and a spray tip located downstream therefrom. The spray tip has a downstream chamber for receiving the liquid and gas with passages, each terminating with a cavity. The cavity cooperates with complementary notched portions for directing discharging flow streams in a predetermined direction for defining a well defined conical or flat spray pattern.

Abstract: A system for surrounding and watering garden plants. The inventive device includes a guarded spray assembly having a perimeter conduit for positioning about a plant. A water inlet permits coupling of the perimeter conduit to a water supply line, whereby pressurized water is sprayed through dispensing apertures onto the surrounded plant. A plurality of water outlets are mounted about the perimeter conduit and permit fluid coupling of a plurality of the guarded spray assemblies together.

Abstract: A collision type of fuel injection nozzle that ensures full frontal collision between jets of fuel injected from the opposed second injection nozzle holes is provided, and a method of manufacturing the nozzle. The method includes forming fuel inlets that extend from the fuel passage and avoid the collision recess, simultaneously forming the at least one pair of injection nozzles holes in a straight line that intersects the fuel inlets and the collision recess and then fixing a cap over at least a peripheral portion of the injection holes. This manufacturing method permits the nozzle holes to be formed at the same time ensuring alignment of the outlets for collision and highly uniform atomization.

Abstract: The present invention discloses an apparatus and method for the turbulent mixing of gases. The invention has particular application when it is desired to produce a gas mixture including a very small quantity (ppm or less) of at least one component gas and/or wherein there is a substantial density difference between the component gases to be used to make up the gas mixture.

Abstract: An elongated CO.sub.2 snow forming header is provided for disposition within an elongated insulated container and includes removably closable liquid CO.sub.2 inlet structure at each of its opposite ends. The header includes a central longitudinal supply pipe into either end of which liquid CO.sub.2 may be admitted and a pair of oppositely laterally spaced header lines supporting snow forming nozzles at points spaced longitudinally therealong for discharging jets of CO.sub.2 snow onto opposite sides of the center supply line. Lateral communicating lines communicate each end of the supply line with corresponding ends of the header lines and the communicating lines open into the supply line in a manner such that rapid inflow of liquid CO.sub.2 past the communicating lines causes an appreciable portion of the liquid CO.sub.2 passing through the header lines to be recirculated through the center supply line.

Abstract: A white smoke generating apparatus comprising a vessel, a discharge opening for discharging white smoke generated in said vessel to the exterior of said vessel, a cryogenic gas spray opening for spraying cryogenic gas, and a water spray opening for spraying heated water. The cryogenic gas spray opening and water spray opening are provided inside the aforementioned vessel, and these cryogenic gas spray opening and water spray opening are arranged such that cryogenic gas, discharged from the cryogenic gas spray opening, and heated water, discharged from the water spray opening, counter or cross contact. As a result, according to the present invention, white smoke can be generated with a high efficiency using only a small amount of cryogenic gas.

Abstract: A liquid distribution device and method for distributing liquid uniformly is disclosed. A coating liquid is supplied to a distribution cavity from both sides of the cavity through a delivery line. The cavity is a slot which expands from the length at the liquid entrance of the cavity to a longer length at the cavity exit. The two streams of liquid impinge against each other inside the cavity and spread out along the contour of the cavity. This liquid distribution system eliminates recirculation regions and does not experience problems with variable residence time and distribution across the slot.

Abstract: The liquid feed injector as hereindescribed uses sequential stages of increased severity mixing to fully atomize a liquid portion of a combined liquid and gaseous stream. Sequential mixing consists of a first mild mixing that takes place in a mild mixing zone and blends the liquid and gaseous material into a substantial uniform mixture. The uniform mixture of liquid and gaseous material passes through another stage of vigorous mixing where the liquid is sheared and gas is dispersed throughout the liquid by dividing the mixture into a plurality of small streams and directing the projection of the streams into impingement with an impact medium to produce a homogeneous mixture of fine gas bubbles dispersed in the liquid. The homogeneous liquid and gas mixtures are then discharged through one or more discharge nozzles to effect atomization and distribution of the liquid in a suspension of fluidized solids.

Abstract: A device for injecting aqueous nutrient solution (2) for hydroponic culture constituted of substantially horizontal supply pipes (9) located in the air space (3), held against the lateral walls (10) of the tank (1), injecting the nutrient solution (2) in the form of droplets through injection orifices (11) on opposed, substantially horizontal trajectories, thus improving their gaseous transfer capacity and their penetration into the nutrient solution to accomplish a continual saturation of this nutrient solution (2) with oxygen.

Abstract: A method and device for dispersing molten metal into fine particulate spray, the method comprises applying an electric current through the molten metal and simultaneously applying a magnetic field to the molten metal in a plane perpendicular to the electric current, whereby the molten metal is caused to form into droplets at an angle perpendicular to both the electric current and the magnetic field. The device comprises a structure for providing a molten metal, appropriately arranged electrodes for applying an electric current through the molten metal, and a magnet for providing a magnetic field in a plane perpendicular to the electric current.

Abstract: A thermal spray gun includes a first burner for producing a first fan-shaped flame, a second burner for producing a second fan-shaped flame parallel to the first in sufficient proximity to commingle into a combined fan-shaped flame. Powder is dispersed into a fan-shaped powder spray entrained between the first and second flames. The gun body has a fan-shaped powder chamber with an open side opening forwardly from the gun body between the first flame and the second flame and with an apex location opposite the open side. First and second powder ducts each terminate at the apex location with a common axis perpendicular to the fan-shaped chamber such as to mutually impinge the first and second powder streams into a combined powder stream dispersing through the fan-shaped powder chamber into the fan-shaped powder spray.

Abstract: Air is detected from opposing ends of a trough-like continuous contour which defines a guide path for the two opposing streams. The air streams will be attached to flow along the trough and where the oppositely directed streams impact or impinge upon each other, they will be deflected normal to their path and the two combined streams will be projected or directed perpendicularly outwardly from the trough in the form of a fan-shaped jet. By controlling the velocity of the two opposing jets, the point of impact or impingement of the two jets can be moved along the trough with the trough defining the path of movement of the point or virtual outlet of outward projection of the combined jets. In preferred embodiments, the defrost and heating and air conditioning outlets for automobiles incorporate the invention so as to avoid protrusions and provide a continuous clean and unbroken appearance.

Abstract: An atomizer (10) for a liquid has an air supply tube (20). Liquid supply tubes (26, 28) extend longitudinally along the air supply tube (20). The air supply tube (b 20) has at least one air orifice (22) extending from an inner surface (24) of the tube (20) through the tube. The liquid supply tubes (26, 28) are positioned on either side of the air orifices (22) and the liquid tubes are sealed to the air supply tube. The liquid supply tubes (26, 28) with facing liquid orifices (30) are positioned adjacent each of the air orifices 22. The liquid supply tubes (26, 28) are laterally spaced apart at the liquid orifices (30) a distance less than the diameter of the air orifices (22) to enable a beneficial venturi effect when the atomizer is in operation.

Abstract: A pair of CO.sub.2 snow forming nozzles are provided within a tank for receiving CO.sub.2 snow and the nozzles are mounted in an upper portion of the tank with their outlet ends directly opposing each other and spaced apart approximately 121/2 inches. A supply of liquid CO.sub.2 at approximately 300 psi is communicated with the inlet ends of the nozzles for simultaneous discharge of CO.sub.2 gas from the nozzle outlet ends and opposing impact of the discharges of CO.sub.2 from the nozzle outlet ends in an impact area disposed centrally between the nozzle outlet ends. In addition, the liquid CO.sub.2 is communicated with the inlet ends of the nozzles through a supply line therefor constructed of good heat transfer material and including an intermediate length portion passing centrally through the area of opposing impact of the discharges of CO.sub.2 from the nozzle outlet ends, thereby chilling the supply line to an extent sufficient to reduce the temperature of the liquid CO.sub.

Abstract: A device is disclosed which is capable of generating turbulence in a fluid as well as a sonic or ultrasonic field of predetermined frequency comprising a swirl chamber which is in fluid communication with a compression chamber and followed downstream by modulator cavities. Each successive stage of the device can alter the frequency and amplitude of the waves produced and in certain embodiments can act to intensify the vortices created in the fluid passing through the device to produce both mold controlled turbulence as well as stable high frequency/high amplitude acoustic (sonic or ultrasonic) vibration at the exit port.

Abstract: The specification discloses apparatus for fragmenting fluid fuels into submicron size constituents of substantially uniform size for improved combustion and blue flame burning. In an improved nozzle (10), fluid fuel at constant pressure is introduced tangentially into a frustroconical swirl chamber (20) whereby vortical flow of the fluid is induced. A frequency multiplier and amplitude amplifier (30) for generating an ultrasonic field of constant high frequency is disposed downstream of the swirl chamber (20) in coaxial alignment therewith. The frequency multiplier and amplitude amplifier (30) includes a generally cylindrical compression chamber (32), open at the upstream end to receive the vortical flow and substantially closed at the downstream end.

Abstract: An apparatus is described for intimately admixing two liquid components which react chemically with each other immediately after mixing (the mixing of phosgene and polyamines is an example). The mixing is accomplished by introducing one component in the form of a fan shaped spray into a mixing chamber, and causing this spray to intersect with twin fan-shaped sprays of the second component which latter sprays are introduced into the mixing chamber from preferably diametrically opposed locations in a direction substantially perpendicular to the direction of the first component spray. The process and apparatus in question provide improved mixing, substantially reduce problems of solids deposition hitherto encountered in similar processes, and give products of greater uniformity and improved physical properties.

Abstract: An air-fuel mixture supplying device for internal combustion engines, in which sonic nozzles are disposed facing each other in such a manner that their center lines lie in the same horizontal and vertical planes so that the fuel ejected from the nozzle is pulverized and mixed with bleed air ejected from the opposing nozzle in optimum condition. During intermittent ejection of fuel, two injector valves inject fuel alternately so that the fuel particles ejected from the opposing nozzles do not collide with each other but only strike against and mix with the bleed air. This eliminates the possibility of fuel particles becoming agglomerated and produces desirable air-fuel mixtures.

Abstract: A scrubber device for removing finely divided contaminants from a gas stream is disclosed. The device comprises first and second conduits each of which has an inlet and an outlet with nozzle means and flow guide means disposed adjacent the end of each outlet. The nozzles are configured such that the flow path of the discharge of the first conduit intersects the flow path of the discharge of the second conduit. The flow guide means are configured so as to regulate the flow path of the gas stream through each conduit such that a collision zone is created thereinbetween. Further, the flow guides act so as to improve the collection efficiency of the scrubber. In this manner, contaminants in each respective stream are caused to be removed by inertial impaction. By the use of the scrubber device of the present invention, even finely divided contaminants in the order of 0.1 microns diameter to 3 microns diameter can be removed.

Abstract: A purifying system is disclosed for the removal of small particles of impurities from a gaseous mixture flowing in a conduit, including a venturi connected in series in the conduit, a liquid injection device for introducing jets of liquid to produce a liquid mist pattern extending transversely within the venturi to moisturize the small particles of impurities, and a regulator operable in response to the pressure differential across the venturi for adjusting the effective cross-section of the venturi and/or the operation of the injection device, thereby to maintain the pressure differential across the venturi at a predetermined value.

Abstract: A carbon-dioxide (CO.sub.2) snow-making system comprising a snow horn having an upper chamber into which pairs of jets of CO.sub.2 are transversely injected from opposite directions, respectively. The expanding jet mixtures of snow and vapor are directed into collision along paths that lie generally in a single plane so as to intersect at an angle of 180.degree. in a central region of the chamber, thereby to dissipate the kinetic energy of the jets. Where more than two jets are directed into collision at a common point, the intersecting angles are so chosen that the resultant kinetic energy is substantially zero. High velocities and turbulence of the snow-vapor mixture are thereby minimized, and the snow discharges evenly from the chamber and through the horn without sticking thereto for uniform distribution.

Abstract: Fluid spray for generating rectangular coverage area which includes a tubular conduit or header carrying a fluid under pressure and a pair of spaced nozzles. Each nozzle includes a bore which receives liquid from the header and conducts it toward a concavely curved end wall. Each nozzle has a circumferentially extending orifice adjacent the end wall which faces toward an identical orifice of the other nozzle so that the spray from one nozzle impinges upon the spray from the other nozzle.

Abstract: Methods and apparatus are provided for use in decorative water fountains, dish washers, and the like, wherein one or more pairs of oppositely projected fluid streams are collided to form dispersals having preselected shapes and movement or location functionally related to the relative magnitude, pressure or impact velocity, and alignment of the streams.

Abstract: A miniaturized object cleaning apparatus which is portable and adjustable including two juxtaposed concave, allochiral, elongated tubular jaws containing opposed openings for passage of ionized air in the form of jets to remove fine dust particles from said article.

Abstract: A fluid yarn processing jet of trilaminar construction wherein a recessed discontinuous inner lamina forms a yarn processing duct which has at least one fluid entry port thereto and wherein an outer lamina is readily removable to facilitate the placement of yarn within the duct. All exterior edges in the vicinity of the duct which are resultant from the recessing of the inner laminar are rounded so as to prevent yarn damage.

Abstract: The invention relates to a head for dispensing a liquid product in the form of an aerosol. The dispensing head includes a push-button, at least two ducts housed in the push-button and at least two nozzles provided in the push-button. At least part of each duct is radial, and another part of the duct communicates with the nozzle and is orientated parallel to an axis of the nozzle. The nozzles are arranged so that the sprays leaving each nozzle strike each other in order to provide a single and homogeneous spray. The invention also relates to a dispenser equipped with such a dispensing head.