Abstract: A shower head having dual turbines. The shower head includes a body having an inlet for connection to a water conduit, a first outlet nozzle formed on the body, a second outlet nozzle formed on the body, a first turbine operably connected to the first outlet nozzle, and a second turbine operably connected to the second outlet nozzle. The shower head may include a flow actuation system taking the form of an actuator ring, a valve connected to the actuator ring and forming a flow channel, a first actuation point defined on the actuator ring, a second actuation point defined on the actuator ring, and a plunger situated within the flow channel. The plunger extends radially outwardly from a center of the valve when aligned with one of the first and second actuation points.

Abstract: A fluid discharge pipe structure comprises a cylindrical body, an inlet side connection member having a through hole formed in one end part of the cylindrical body, an outlet side connection member having a through hole formed in another end part of the cylindrical body, a spiral blade body having spiral blades on an outer circumference thereof and provided close to the inlet side connection member of the cylindrical body, and a flip-flop phenomenon generating shaft body provided close to the outlet side connection member of the cylindrical body.

Abstract: There is provided a fuel injection valve in which nozzle holes are formed on a metering plate and fuel flowing on a face of the metering plate on the upstream side is injected outside of a face of the metering plate on the downstream side through the nozzle holes. The fuel injection valve includes a vortex flow generator means for changing a flow of fuel passing in each nozzle hole into a vortex flow, wherein the vortex flow generator means is provided on the upstream side of the metering plate. The vortex flow means is a vortex flow generator groove provided on an upper face of the metering plate and connected with a wall face of an entrance of the nozzle hole, and a main stream of fuel flowing in the groove is directed to a position shifted from the center of the nozzle hole. Alternatively, the vortex flow means is a protrusion formed on an upper face of the metering plate. A flow of fuel is changed into a vortex flow in the nozzle hole and injected from the nozzle hole.

Abstract: A shower head assembly includes an outer housing, an inner housing, a catch cap, and an impeller. Thus, the catch cap catches the water flow and introduces the water flow through the water inlet hole into the air chamber so as to reduce the water flow rate, thereby achieving the purpose of saving water. In addition, the water flow is ejected outward in a radiating manner by rotation of the impeller, thereby providing a massaging effect to the user.

Abstract: A vortex generator creates a waveform within a housing. The waveform evolves into a vortex as it exits an orifice of the housing. The vortex carries a bolus of active substances held within the housing. A different number of actives can be used. To form a waveform, the housing has a diaphragm with an actuator for moving the diaphragm. The housing may have a mechanism for facilitating directional pointing and/or causing oscillating movement of the housing to enable multi-directional targeting of the vortex.

Abstract: A nozzle device for ejecting a liquid onto vehicle windows or headlight lenses. At least one rotation chamber is formed inside a nozzle body. The liquid enters the chamber, is rotationally displaced in such a way that it is then ejected as a homogeneous fan jet via at least one slit-like nozzle opening.

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: A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine is provided, which injector includes a valve needle having at its spray-discharge end a valve-closure member, which cooperates with a valve-seat surface formed on a valve-seat member to form a sealing seat. At least one swirl channel is provided in a section of the valve-seat member surrounding the valve needle, and at least one spray-discharge orifice is provided in the valve-seat member. The at least one swirl channel, when viewed through the swirl channel in the flow direction of the fuel, is inclined counter to the spray-discharge direction relative to the center axis of the valve needle.

Abstract: The spraying device comprises: a tubular body which defines a chamber connected to a supply of water under pressure, a nozzle (1) with atomizer and a constriction organ in the form of a valve (6) in order to form a thin-walled hollow jet. The orifice (7) of the nozzle comprises a surface shaping the jet which is arranged to produce at the level of this latter an asymmetry of rotation. The spraying device preferably comprises two nozzles centered in the same plane and forming between them an angle which is of the order of 80°. The valves of these two nozzles are controlled simultaneously by appropriate elements.

Abstract: A liquid atomizer comprising a housing fitted with an inlet for connecting to a liquid supply line and a cavity being in flow communication with the inlet and having a longitudinal axis. The housing has one or more outlet nozzles for emitting atomized liquid. A vortex generating member is received within the housing and is formed with at lest one vortex generating path generates a liquid vortex about an axis transversally extending relative to the longitudinal axis of the housing and extending opposite a respective outlet nozzle. Each of the vortex generating paths is in flow communication with the cavity and extends opposite a respective outlet nozzle.

Abstract: A liquid sprayer is provided. This liquid sprayer comprises a bottle having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electric motor, a voltage source for powering the electric motor, a pump driven by the motor, a switch for completing an electrical circuit, a nozzle mechanism attached to the sprayer housing for spraying a liquid. The liquid sprayer also comprises a venting mechanism. This venting mechanism comprises a vent housing having an inner surface and an outer surface, and a translating piston disposed in the vent housing.

Abstract: A fuel injector, in particular a high pressure injector for direct injection of fuel into a combustion chamber of an internal combustion engine having externally supplied ignition and mixture compression, is characterized in that a valve needle, which is movable axially along a longitudinal axis of the valve, has a specially designed valve closing section on its downstream end. To open and close the valve, the valve closing section works together with a fixed valve seat. Swirl-producing elements are arranged upstream from the valve seat while a flattened face running perpendicular to the longitudinal axis of the valve is provided on the downstream end of the valve closing section downstream from the valve seat.

Abstract: A fuel swirling means 15 for giving a swirling force at the upper stream of the valve sheet 7 to the fuel passing through the surrounding area of the valve body 13 and a nozzle 16 injecting a swirling fuel are provided. A fuel spray 47 injected out from the injection port 17 of the nozzle 16 is so formed that the orientation of the fuel spray is deflected in a definite direction on the basis of the longitudinal axis C of the fuel injection valve body, the reachable distance L1 of the fuel spray at the deflected side is longer and the reachable distance L2 of the fuel spray at another side opposite to the deflected side is shorter.

Abstract: A fuel injector is provided which comprises a swirl generator and a swirl regulator. The swirl regulator comprises an upper housing mounted to an upper part of said body and a lower housing including a center aperture, said lower housing and said upper housing cooperatively defining a plurality of cavities; a rotating member including a center shaft and a plurality of vanes formed thereon, said center shaft being rotatably disposed in said center aperture of said lower housing and coupled to said swirl generator, said vane being disposed in said cavity such that said cavity is divided into a first chamber and a second chamber, said first chamber communicating with said fuel passageway and said second chamber communicating with the outside of said injector; a biasing member forcing said rotating member to rotate against a force acting on said vane from a pressure difference between said fuel passageway and the outside of said injector.

Abstract: An electronic fuel injector capable of supplying fuel in a stable manner is provided by employing a swirler, which is manufactured at a lower cost and has durability, and by ensuring superior wear resistance of the swirler and a valve member provided on a movable part, which is put into frictional contact with the swirler. The electronic fuel injector comprises a movable part, a valve member, a valve seat, a swirler, a stopper, a stator core, a casing, a spring, and an electromagnetic coil. A valve member is provided at a fore end of the movable part. The swirler serves not only to swirl fuel, but also to guide movement of the valve member provided at the fore end of the movable part. The swirler is formed of a powder sintered compact of martensitic stainless steel having corrosion resistance and wear resistance.

Abstract: A fuel swirler plate for improving atomization of fuel in a fuel injector. A plurality of identical fuel supply passages is formed in the plate, each passage including an outer fuel reservoir region; a region having converging walls wherein fuel is accelerated and turned partially tangential to the axis of the plate and fuel injector; a metering region wherein flow is regulated; and an exit region wherein the fuel is combined with similar fuel flows from the other passages to form a high velocity swirl annulus between the swirler plate and a pintle ball of the fuel injector. An advantage of the novel swirl plate over prior art plates is that, when the injector valve is closed, only a very small volume of fuel resides in the swirl annulus between the pintle ball and the exit region of the plate, and such residual fuel is urged rotationally and becomes the leading edge of a new vortex the next time the valve is opened, thus minimizing SAC spray formation.

Abstract: A fluid discharge apparatus adapted for to commingling two pressurized fluids, such as a pressurized liquid and a pressurized gas, and for discharging the commingle fluids in a high pressure spiral stream that is particularly useful in washing dirt, debris, barnacles, and other substances from surfaces. The fluid discharge apparatus is adapted with a barrel having internal spirally disposed baffles that induce rotation in the flowing fluids thereby producing a spiral flow. Cavitation results from the spiral flow thereby creating an axial region of low pressure that draws the gas radially inward resulting in a composite stream including a rotating stream of liquid surrounding a concentrically disposed stream of gas.

Abstract: The present invention provides a method and device for production, extraction and delivery of an aerosol mist with ultrafine droplets. A high frequency wave generating device or other process generates very small particles or droplets from a reservoir of liquid or material to be atomized. A helical flow of a carrier gas medium such as air is directed into a container and creates a high throughput aerosol of air and fine droplets. The aerosol is delivered through a suitable outlet such as by deflecting the aerosol upwards and providing a tube centrally situated with respect to the helical flow such that the aerosol will discharge through the tube in high quantity of throughput and high quality of stable aerosol of very fine mist droplets. The methods described utilize in-situ extraction of fine mist droplets using helical flow behavior as opposed to forced convection ejection of mist or inertial separation of droplets by separators.

Abstract: A dynamic spray system for effectively thermally managing electronic components. The dynamic spray system includes one or more spray units each having a housing structure, a first portion, a first orifice within said first portion fluidly connected to a swirl chamber, a main jet fluidly connected to the swirl chamber, a plunger movably positioned within the main jet for adjusting fluid flow through the main jet, and at least one swirl inlet fluidly connected to the swirl chamber for generating a fluid swirl effect within the swirl chamber. The main jet is preferably aligned with the first orifice for dispersing a relatively narrow spray pattern from the first orifice when the fluid flow is increased through the main jet. The spray pattern is broadened when the fluid flow through the main jet is decreased.

Abstract: The invention relates among others to a method for producing outlet openings (32) in a valve, in particular a fuel injection valve. The injection valve has a fuel inlet (2), an excitable actuating device (1, 2, 19) by which a valve closing member (28) is movable, a fixed valve seat (27) embodied on a valve seat element (26), with which seat the valve closing member (28) cooperates to open and close the valve, and at least one outlet opening (32), as a fuel outlet, provided downstream of the valve seat (27). The at least one outlet opening 32 is produced in such a way that in a first method step, a through hole is created in the valve seat element (26), and in a second method step, from the ejection end of the through hole, an outlet region is created that is altered in shape and/or size and/or contour compared to the through hole.

Abstract: A nozzle, comprising a nozzle body (11), a nozzle tip (12) stored in the nozzle body and a deflector (15) fitted to the tip side of the nozzle, the nozzle tip (12) further comprising a swirl groove (12g) in the rear end face (12d) thereof and a jetting nozzle (12k) projectedly provided thereon with the inner diameter thereof increased at the tip side, the deflector (15) further comprising a support bar (15a) and an impact plate part (15b) connected to each other through a continuous portion (15d) formed of a curved surface and smoothly continued to an impact surface (15c), wherein swirl fluid (T) is jetted from the jetting nozzle (12k) and deflected at the continuous portion (15d) to outwardly jet the fluid widely along the impact surface (15c).

Abstract: A feed device is provided which can release a mixing solution in a suitable amount in correspondence with a flow rate of running water to thereby use the mixing solution efficiently so that the service life and exchange period of a cartridge can be prolonged. The feed device includes a body having a supply channel and a cartridge provided in the body. The cartridge includes a holding chamber for holding a mixing solution and a dilution chamber. The dilution chamber communicates with the supply channel through a sustained release outlet, and is supplied with the mixing solution from the holding chamber. When water passes through the supply channel, the mixing solution supplied to the dilution chamber is diluted with from the sustained release outlet. The mixing solution diluted to a uniform low concentration is sustainedly released from the dilution chamber through the sustained release outlet to the supply channel.

Abstract: A switch handle at a bottom section of a sprayer long tube of a water sprayer includes a sprayer long tube, a switch and an inlet tube having a connecting sleeve pivotally connected to a bottom end thereof. The bottom section of the long tube is connected to an outlet section of the switch. The inlet section of the switch is connected to the inlet tube. The sprayer long tube, switch and inlet tube are integrally connected. The connecting section of bottom section of the long tube and the switch, the periphery of the switch, the connecting section of the switch and the tube, and the entire peripheral surface of the tube are injection molded integrally from plastics (rubber) one or two times, to thereby effectively couple them integrally such that the plastic (rubber) injection molded parts is suitable to be used by the handle provided at the bottom section of the sprayer long tube.

Abstract: An atomizer spray plate is provided for discharging fuel oil. The spray plate has a cylindrical rear portion and a conical front portion. A frusto-conical whirl chamber extends from the rear portion to the front portion with a decreasing radius. The rear portion includes a number of whirl slots extending radially inward from an outboard region of the rear portion to the whirl chamber to provide the fuel oil with rotational energy. A discharge slot is provided in the front portion of the spray plate for receiving fuel oil from the whirl chamber with rotational energy. The discharge slot includes a cylindrical through-hole with a diameter d, and at least three lobes (slots) equally spaced about the through-hole and oriented in a radial direction, each lobe having a semi-circular cross-section with radius r and extending approximately perpendicular to a central longitudinal axis of the through-hole.

Abstract: A shower head having dual turbines. The shower head includes a body having an inlet for connection to a water conduit, a first outlet nozzle formed on the body, a second outlet nozzle formed on the body, a first turbine operably connected to the first outlet nozzle, and a second turbine operably connected to the second outlet nozzle. The shower head may include a flow actuation system taking the form of an actuator ring, a valve connected to the actuator ring and forming a flow channel, a first actuation point defined on the actuator ring, a second actuation point defined on the actuator ring, and a plunger situated within the flow channel. The plunger extends radially outwardly from a center of the valve when aligned with one of the first and second actuation points.

Abstract: A manually actuated sprayer has an orifice cup with a reverse taper mounted within a cylindrical bore of the discharge passage for positively retaining the orifice cup in place without dislodgement during spray actuation.

Abstract: A fuel injection valve, for an engine, comprising a nozzle body having a plurality of nozzle holes and a needle valve reciprocated in the nozzle body for controlling the inflow of the fuel into the nozzle holes is disclosed. The fuel is rendered to flow into the nozzle holes from a direction along the inner wall surface of the nozzle body around each of the nozzle holes in a first inflow mode, and from a direction substantially perpendicular to the inner wall surface of the nozzle body in a second inflow mode. The first inflow mode and the second inflow mode can be selectively switched to each other. The fuel is rendered to flow into the nozzle holes in the first inflow mode before the lapse of a predetermined time after the engine is started, and in the first or second mode as required after the lapse of the predetermined time.

Abstract: A fuel injector nozzle assembly includes an injector body including a valve seat with a supply passage through which fuel flows generally along a supply axis. A nozzle plate having a top surface and a bottom surface is mounted onto the valve seat. The top surface includes a recess formed therein whereby fuel flows into the recess from the supply passage. A plurality of swirl chambers are formed within the top surface, each having a conical orifice extending from the swirl chamber to the bottom surface of the nozzle plate. A plurality of channels interconnect each of the swirl chambers to the recess, wherein the channels meet the swirl chambers offset from a center of the swirl chambers.

Abstract: A misting nozzle includes a nozzle body defining a conduit with a fluid inlet and a fluid outlet end. The nozzle also includes an aperture member having an opening therethrough with an aperture at one end. The opening is designed to receive the fluid outlet end therein. External threads on the nozzle body and mating internal threads in the opening releasably attach the aperture member to the nozzle body. A circumferentially extending surface is formed on the nozzle body adjacent the outlet end so as to abut a mating surface in the opening of the aperture member to prevent fluid flow between the fluid outlet and the aperture. Offset slots extend between the mating surfaces to provide fluid flow and are positioned to impart turbulence to the fluid prior to flowing through the aperture.

Abstract: A double-swirl spraying nozzle has two swirl chambers which are open toward opposite sides and are in each case arranged on respective sides of a longitudinal center plane extending through the inflow duct and are preferably designed mirror-symmetrically with respect to the center axis of the inflow duct. This design makes it possible for the medium to enter without any cross-sectional constrictions into the two swirl chambers and to exit with a different swirl in opposite directions.

Abstract: An atomizing nozzle (100) for use in a misting system and a process (300) for manufacturing the atomizing nozzle (100) are provided. The atomizing nozzle (100) is made up of a nozzle body (104), an orifice insert (106), and an impeller. The nozzle body (104) has an inlet end (110), has an outlet end (112), has an insert recess (116) proximate the outlet end (112), and encompasses a first chamber (122). The metallic orifice insert (106) is fabricated from a metallic sheet material (140) and affixed to the nozzle body (104) within the insert recess (116) and encompasses a second chamber (148). The non-metallic impeller (108) is configured to reside within the first and second chambers (122, 148) between the metallic orifice insert (106) and the nozzle inlet end (110).

Abstract: An aerosol tip mechanism for an aerosol-type dispenser for dispensing liquid content has a flexible outer shell, a rigid cap portion composed of lower and upper portions, and a rigid nozzle portion having a rigid shaft received within the outlet portion of the flexible outer shell. The rigid shaft interfaces the outlet portion of the outer shell, forming a first normally-closed one-way valve. The lower and upper portions of the rigid cap portion form boots adapted to receive an outlet portion of the flexible outer shell, the boots thereby constraining a lateral motion of the outlet portion of the outer shell, and symmetrically centering the outlet portion around the rigid shaft of the nozzle. The rigid nozzle portion includes a plurality of liquid channels for delivering liquid from a reservoir to a swirling chamber defined within the rigid cap portion, which liquid channels are configured to minimize energy losses of the liquid and promote a more homogeneous fluid particle size in the dispensed aerosol.

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: An actuated atomizer is adapted for spray cooling or other applications wherein a well-developed, homogeneous and generally conical spray mist is required. The actuated atomizer includes an outer shell formed by an inner ring; an outer ring; an actuator insert and a cap. A nozzle framework is positioned within the actuator insert. A base of the nozzle framework defines swirl inlets, a swirl chamber and a swirl chamber. A nozzle insert defines a center inlet and feed ports. A spool is positioned within the coil housing, and carries the coil windings having a number of turns calculated to result in a magnetic field of sufficient strength to overcome the bias of the spring. A plunger moves in response to the magnetic field of the windings. A stop prevents the pintle from being withdrawn excessively. A pintle, positioned by the plunger, moves between first and second positions.

Abstract: A spray nozzle is disclosed which includes an elongated nozzle body having an axially extending interior chamber and at least two radially extending air inlet ports communicating with the interior chamber. An elongated fluid inlet fitting having an axial fluid inlet passage is axially disposed within the interior chamber of the nozzle body. A fluid distribution insert is axially disposed within the axial fluid inlet passage of the fluid inlet fitting. The fluid distribution insert has an axial impact chamber formed therein, and an axial fluid feeding orifice which communicates with the axial impact chamber. An air swirling insert is disposed within the nozzle body. The air swirling insert has an interior bore for receiving the fluid distribution insert, and a fluid mixing orifice communicating with the fluid feeding orifice of the fluid distribution insert. A fluid metering insert is axially disposed within the impact chamber of the fluid distribution insert.

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: An apparatus imparts movement to a fluid dispersing nozzle with a mechanism for converting rotational movement about an axis of rotation into orbital movement about the axis of rotation, and an elongate member is connectable to the mechanism at one end and is connectable to a fluid nozzle at an opposite end from the mechanism. The orbital member provides orbiting movement of the opposite end in response to rotation of the mechanism about the rotational axis, and provides stationary centered positioning of the opposite end in response to a non-rotating mechanism. A speed multiplier transmission or gearbox can be provided between the motor shaft and drive spindle if desired. A separate mixer is positionable within the member and is moveable longitudinally with respect to the member during use. The mixer includes a valve member connected to one end for movement relative to a valve seat defined by an inner surface of the cone.

Abstract: A reversible, adjustable arc sprinkler head comprising a sprinkler body incorporating a fixed nozzle; a spray plate mounted on one end of a support cage for rotation with the support cage in one or the other of two opposite directions about a first axis arranged coaxially with a stream emitted from the nozzle, and for back and forth tilting motion about a second axis perpendicular to the first axis, an opposite end of the support cage secured to a sleeve rotatably mounted in the sprinkler body, the spray plate having a pair of substantially parallel grooves for selectively receiving the stream, wherein the direction of rotation of the spray plate about the first axis is determined by the tilting motion of the spray plate about the second axis; and a shift lever formed with an aperture sized to receive the stream, the shift lever mounted at one end on the sleeve for rotation about a third axis parallel to the first axis, the shift lever enabled to shift the stream from one of the pair of grooves to the other o

Abstract: The present invention provides a GDI injector of a vehicle engine that can change the level of swirl motion and make it possible to increase engine output and fuel mileage, comprising a nozzle body having an opening along its longitudinal axis, a fuel inlet member, a cylindrically-shaped needle valve being centrally located within the opening of the nozzle body, and a swirl generator, the swirl generator comprising: an inner case having a cylindrically-shaped body and a plurality of equally and angularly spaced lobes, the inner case being coupled to the needle; an outer case having a cylindrically-shaped body and a plurality of equally and angularly spaced grooves, the outer case being fixedly attached to the nozzle body; and an inner case rotator.

Abstract: A jet nozzle is provided for drilling holes through the earth, such as drainholes around a well. The nozzle may include orifices for discharging fluid to drive the nozzle forward and includes a disk or other device having orifices to produce a swirling motion to fluid in the body of the nozzle. Swirling fluid is discharged from a front orifice and an extension is placed forward of the front orifice to confine the swirling fluid in a radial direction.

Abstract: An atomizing spray nozzle structure comprising a main unit, a rotor and a spray nozzle, wherein the main unit and the spray nozzle are joined by thread tightening. Inside the main unit is an accommodating space. The spray nozzle has a through channel running along the axis thereof. The accommodating space is communicative with the through channel, having a rotor inside the through channel and the accommodating space, characterized in that: an end of the rotor corresponding to the accommodating space is a tapered end, and a neck is protruded from the tapered end, the length of the rotor is longer than the through channel at all circumstances, and the end with protruded neck exposed in the accommodating space of the main unit; thereby the rotor can be easily taken out for cleaning purpose after the main unit and the spray nozzle are disassembled.

Abstract: In a fuel injector with a swirler creating swirling fuel flow, a projected portion is formed as an orifice nozzle tip at an opening end of a nozzle hole. The projected portion includes a first sloped portion having a sloped surface whose height h1, measured in the orifice-axis direction, is dimensioned to gradually increase along the swirling-fuel-flow direction, and a second sloped portion having a sloped surface whose height h2, measured in the orifice-axis direction, is dimensioned to gradually decrease along the swirling-fuel-flow direction. In a &thgr;-h coordinate system constructed by a &thgr;-axis representing the angular position of the orifice nozzle tip and a h-axis representing the axial height of the projected portion, the projected portion is dimensioned so that the absolute value |dh1/d&thgr;|max of the gradient of the first sloped surface is dimensioned to be less than the absolute value |dh2/d&thgr;|max of the gradient of the second sloped surface.

Abstract: A spray head and air atomizing assembly for providing atomizing air in an air sprayer or other delivery device in which the atomizing assembly includes converging, spiral atomizing fluid passageways.

Abstract: An atomizing spray nozzle structure comprising a main unit, a rotor and a spray nozzle, wherein the main unit and the spray nozzle are joined by thread tightening. Inside the main unit is an accommodating space. The spray nozzle has a through channel running along the axis thereof. The accommodating space is communicative with the through channel, having a rotor inside the through channel and the accommodating space, characterized in that: the rotor has a length longer than the through channel at all circumstances, with one end exposed in the accommodating space of the main unit; thereby the rotor can be easily taken out for cleaning purpose after the main unit and the spray nozzle are disassembled.

Abstract: A liquid spray device, comprising a container (1), a spray injection nozzle (2) for injecting oil spray into the container (1), a spray feeding path (5) for feeding oil spray in the container (1) to the outside of the container (1), oil (11) stored in the container (1), a gas exhaust port provided in the oil (11) by discharging gas into the oil (11), whereby the flow velocity of the oil spray in the spray feeding path can be increased and the amount of oil spray can be increased because an internal pressure of the container can be increased and an oil spray different from the oil spray from the spray injection nozzle can be produced.

Abstract: A liquid atomizer comprising a housing fitted with an inlet for connecting to a liquid supply line and a cavity being in flow communication with the inlet and having a longitudinal axis. The housing has one or more outlet nozzles for emitting atomized liquid. A vortex generating member is received within the housing and is formed with at lest one vortex generating path generates a liquid vortex about an axis transversally extending relative to the longitudinal axis of the housing and extending opposite a respective outlet nozzle. Each of the vortex generating paths is in flow communication with the cavity and extends opposite a respective outlet nozzle.

Abstract: A spray nozzle is disclosed which includes an elongated nozzle body having an axially extending interior chamber and at least two radially extending air inlet ports communicating with the interior chamber. An elongated fluid inlet fitting having an axial fluid inlet passage is axially disposed within the interior chamber of the nozzle body. A fluid distribution insert is axially disposed within the axial fluid inlet passage of the fluid inlet fitting. The fluid distribution insert has an axial impact chamber formed therein, and an axial fluid feeding orifice which communicates with the axial impact chamber. An air swirling insert is disposed within the nozzle body. The air swirling insert has an interior bore for receiving the fluid distribution insert, and a fluid mixing orifice communicating with the fluid feeding orifice of the fluid distribution insert. A fluid metering insert is axially disposed within the impact chamber of the fluid distribution insert.

Abstract: A fuel injection valve for reducing carbon deposit on a passage portion between a seat portion and an injection port. The fuel injection valve includes an injection port 13 for injecting a fuel that is arranged to face a combustion chamber of an internal combustion engine. A seat portion H, where a valve element 8 comes in contact with a face of a valve seat 11 to intermit fuel injection, is arranged at a place upstream the injection port 13. The valve element 8 is conical at a portion downstream the seat portion H to an inlet of the injection port 13. The sectional area of the passage between the valve element 8 and the face of the valve seat 11 at the time of fully opening the valve element 8 is arranged so that the sectional area of the passage downstream of the vicinity of the seat portion H is larger. A tapered face 17 having a bore not more than 1/2.5 of an inner diameter of a swirl chamber 16 of a swirler 10 is formed on the face of the valve seat 11 which is downstream the seat portion H.

Abstract: A fuel injector nozzle assembly includes an injector body including a valve seat with a supply passage through which fuel flows generally along a supply axis. A nozzle plate having a top surface and a bottom surface is mounted onto the valve seat. The top surface includes a recess formed therein whereby fuel flows into the recess from the supply passage. A plurality of swirl chambers are formed within the top surface, each having a conical orifice extending from the swirl chamber to the bottom surface of the nozzle plate. A plurality of channels interconnect each of the swirl chambers to the recess, wherein the channels meet the swirl chambers offset from a center of the swirl chambers.

Abstract: An atomizer spray plate is provided for discharging fuel oil. The spray plate has a cylindrical rear portion and a conical front portion. A frusto-conical whirl chamber extends from the rear portion to the front portion with a decreasing radius. The rear portion includes a number of whirl slots extending radially inward from an outboard region of the rear portion to the whirl chamber to provide the fuel oil with rotational energy. A discharge slot is provided in the front portion of the spray plate for receiving fuel oil from the whirl chamber with rotational energy. The discharge slot includes a cylindrical through-hole with a diameter d, and at least three lobes (slots) equally spaced about the through-hole and oriented in a radial direction, each lobe having a semi-circular cross-section with radius r and extending approximately perpendicular to a central longitudinal axis of the through-hole.