Abstract: A fuel injection valve is provided in which a funnel-shaped fuel collecting depression (35) is provided between a valve seat (8) and an outlet hole (7) of a valve seat member (3), the depression (35) collecting fuel that has passed through the valve seat (8) and guiding it to the outlet hole (7), and a flat fuel diffusion chamber (36) for radially outwardly diffusing fuel that has passed through the outlet hole (7) and guiding it to a plurality of fuel injection holes (11) is provided between opposing faces of the valve seat member (3) and an injector plate (10), an inner peripheral face (7A) of the outlet hole (7) being formed along a curved face on the inner peripheral side of a virtual torus (T) so that the inner peripheral face (7A) is continuous with the base of the fuel collecting depression (35) and the roof of the fuel diffusion chamber (36).

Abstract: An improved fuel injection spray director plate including conically chamfered entries to the flow passages through the plate. The conical chamfer may extend part way or all the way through the plate. In a currently preferred embodiment, the chamfer extends only part way through the plate, and the remaining cylindrical portion of the passage provides desirable directional capability for the spray. Preferably, the conical chamfer axis forms an angle with the cylindrical portion axis. Preferably, a flow passage is positioned in the director plate such that the main flow direction of fuel exiting the fuel injector valve is received into the chamfer of the passage. Preferably, a second conical portion is formed in the passage between the first conical portion and the cylindrical portion.

Abstract: A fuel injector is described. The fuel injector includes an inlet, outlet, seat, closure member, and a metering orifice disc. The metering orifice disc is disposed between the seat and the outlet. The metering orifice disc includes: a generally planar surface, a plurality of metering orifices that extends through the generally planar surface, the metering orifices being located radially outward of the seat orifice; and at least one flow channel having a cross-sectional area that decreases in magnitude starting at a location spaced from the longitudinal axis to proximate a perimeter of a metering orifice. A seat subassembly and a metering orifice disc are described. And a method of atomizing fuel is also described.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: An orifice shield for distributing water flowing from an orifice in a pipe and preventing blockage of the orifice. The orifice shield includes a housing including a cage, the cage being defined by a first plate joined to a second plate via fins, the fins being joined via a plurality of lateral members, the cage including a plurality of openings or slots defined between the fins and the lateral members, the first plate including a central shaft extending downwardly toward the second plate. A freely rotating fan is mounted on the shaft. The fan is adapted to evenly distribute the water flowing from the orifice via the openings or slots. The housing may also be a box housing including a plurality of openings or slots defined therein. The housing includes a first clamp and a second clamp that are adapted to be removably secured to the pipe.

Abstract: In a method and apparatus for separating a solution, the solution containing a target substance is atomized into a mist in an atomizer (1) to produce a mixed fluid of mist and air. In the collection of the mist from this mixed fluid, an air transmission membrane (51) is used, and the air transmission membrane has a pore size that transmits air but does not transmit the target substance contained in the mist. The mixed fluid is brought into contact with the primary surface of the air transmission membrane (51), and the pressure on the primary surface is made higher than the pressure on the secondary surface of the opposite side. Thereby, the air in the mixed fluid is allowed to pass through the air transmission membrane (51) to separate part or all of the air contained in the mixed fluid.

Abstract: A shower head includes a main body, a mounting seat, a locking nut, a connecting disk, an O-ring, a gasket, a water outlet faceplate, an adjusting bolt, and a connector unit. Thus, the connecting disk is moved toward the main body by rotation of the adjusting bolt so that the O-ring is moved upward with the connecting disk and closely urged on the inner wall of the main body, thereby forming a closely sealing effect between the connecting disk and the inner wall of the main body.

Abstract: A liquid jetting apparatus (50) to jet a droplet of a charged liquid solution onto a base material, having: a nozzle (51) in which an edge portion thereof is arranged to face the base material K having a receiving surface to receive the jetted droplet, and an inside diameter of the edge portion from which the droplet is jetted is not more than 30 [?m]; and a liquid solution supplying section (35) to supply the liquid solution into the nozzle (51), wherein a jetting electrode (58) of the jetting voltage applying section (35) is provided on a back end portion side of the nozzle, and an inside passage length of the nozzle is set to at least not less than ten times of the inside diameter.

Abstract: A fuel injector for an internal combustion engine, including a housing, a homogeneous member defining a continuous wall having a seat portion and a guide portion, a closure member, and a metering disk. The housing includes an inlet and an outlet disposed along a longitudinal axis. The homogeneous member is disposed proximate the outlet. The seat portion includes a sealing surface and a seat orifice. The closure member is disposed in the housing and positioned by the guide portion for reciprocal motion along the longitudinal axis between a first position such that the closure member is displaced from the seat, allowing fuel flow past the closure member, and a second position such that the closure member is contiguous the seat, precluding fuel flow past the closure member. The metering disk is proximate the seat orifice.

Abstract: An improved irrigation sprinkler nozzle is provided for enhanced short range or close-in distribution of water for irrigating vegetation and the like positioned relatively close to the sprinkler. The improved sprinkler nozzle includes a nozzle passage for outward projection of a water stream, at least a portion of which is defined by a generally vertically oriented, fan-shaped spray pattern. A lower margin of the nozzle passage defining this fan-shaped pattern is lined with a plurality of forwardly extending ramps each formed with a selected width and a different declination angle. A portion of the water discharged through the nozzle passage is forced and guided downwardly along these ramps for enhanced close-in distribution of water near the sprinkler.

Abstract: An airless atomizing nozzle comprises a tubular body including a bore having an inlet and an outlet; a cylindrical member including a face and a cylindrical delivery channel secured at the outlet, the delivery channel having substantially uniform diameter; and a pin including a target area spaced from and directly over the delivery channel outlet. The delivery channel includes a tapered inlet and an outlet terminating at the face. A method for aligning a target on a pin over an orifice in an airless atomizing nozzle body is also disclosed.

Abstract: A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end through opposite surface (2?) of the perforate membrane and a smoothly curved outwardly diverging portion (11) extending from the first end of the throat portion to the first surface (2) of the perforate membrane. Laser energy is applied selectively to the first surface (2) of the membrane in the form of a pulsed, focused beam to form the nozzles (10) and thereafter the first surface (2) of the membrane and the surface of the diverging portion (11) of the nozzles (10) are electro-polished to remove surface imperfections. The electro-polishing is controlled so as to remove material from the surface of the diverging portion (11) of the nozzles to a depth less than the length of the throat portion (12).

Abstract: A liquid jetting apparatus (20) to jet a droplet of a charged liquid solution onto a base material, having: a nozzle (21) in which an edge portion thereof is arranged to face the base material K having a receiving surface to receive the jetted droplet, and an inside diameter of the edge portion from which the droplet is jetted is not more than 30 [?m]; a liquid solution supplying section (29) to supply the liquid solution into the nozzle (21); a jetting voltage applying section (25) to apply a jetting voltage to the liquid solution in the nozzle (21); and a convex meniscus forming section (40) to form a state where the liquid solution in the nozzle (21) protrudes from the nozzle edge portion.

Abstract: A stacked structure is formed such that a plurality of thin plates, which include at least one liquid flow passage thin plate provided with a liquid flow passage having a predetermined pattern formed on at least one surface, are stacked with an adhesive. A release groove for releasing the adhesive is formed on the liquid flow passage thin plate. An air release hole, which is communicated with the release groove and which penetrates in the stacking direction, is bored through a thin plate stack stacked on the liquid flow passage thin plate. An opening, which allows the air release hole to be open to the outside, is formed on the thin plate disposed at the outermost layer of the thin plate stack. The air release hole has a diameter which is larger than the width of the release groove and which is larger than the opening disposed on the outermost layer.

Abstract: A fuel injector is described. The fuel injector includes an inlet, outlet, seat, closure member, and a metering orifice disc. The metering orifice disc is disposed between the seat and the outlet. The metering orifice disc includes a generally planar surface, at least two metering orifices, and at least one flow channel. The at least two metering orifices are generally located along an axis extending radially away from the longitudinal axis and radially outward of the seat orifice. Each of the metering orifices has a center defined by the interior surface of the metering orifice extending through the disc. The at least one flow channel extends radially away from the longitudinal axis towards each of the at least two metering orifices. And a method of atomizing fuel is also described.

Abstract: An embodiment of an internal self-rotating fluid nozzle includes a rotor rotatably moveable within a nozzle body cavity. The rotor may include a jewel holder that carries at least one jewel member and spins against a rotor seat disposed near the front of the cavity. The rotor seat may be floating. At least one fluid drive passageway may be disposed within, and oriented angularly relative to the central axis of, the cavity. A fluid flow director may be included, extend around the inner circumference of the cavity and include a protruding portion that directs fluid into a forward portion of the cavity.

Abstract: A spraying device for atomizing a liquid is proposed. The spraying device includes a nozzle plate and an actuator. The nozzle plate is provided with a plurality of nozzle apertures. Each of the nozzle apertures includes an entry end for the liquid to enter and an exit end for the liquid to exit. The entry end and the exit end of at least one of the nozzle apertures are asymmetrical structures. The actuator is integrated with the nozzle plate to actuate atomization of the liquid. The spraying direction of a liquid droplet after the liquid is atomized can be controlled by modifying the shape of the exit end of the nozzle aperture.

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

Abstract: A liquid dispense head is provided which can be manufactured at a reduced manufacturing cost, will not react with dispense liquid containing biomolecules, and can dispense liquid droplets having a constant amount from individual nozzles. The liquid dispense head has reservoirs used as reservoirs for containing liquid, pressure chambers for applying a pressure to dispense the liquid, flow passages connecting the pressure chambers and the respective reservoirs. In the liquid dispense head described above, a part of the flow passage is formed of a minute through-hole provided in a glass substrate, and the inside diameter of the minute through-hole is continuously decreased or increased.

Abstract: A water spray nozzle assembly includes an internal channel that is sealable by an internal valve having a seat and a disc. A tilting member is operable to tilt the disc at least partially off of the seat, allowing water to flow through the internal channel. The disc may be further tilted completely off of the seat to provide additional water flow through the water spray nozzle.

Abstract: The invention concerns an insulating nozzle for a gas blast circuit breaker. In accordance with the invention, the material constituting the nozzle comprises (A) 90% to 99.9% by weight of a fluorinated polymer, and (B) 0.1% to 10% by weight of a filler based on at least one oxide selected from (B1) SiO2 and other oxidized forms of metals from column IVA of the periodic table, and (B2) ZnO, CdO and other oxidized forms of metals from column IIB of the periodic table.

Abstract: A fuel injector includes an orifice disc. The orifice disc includes a peripheral portion, a central portion, and an orifice. The peripheral portion is with respect to a longitudinal axis and extends parallel to a base plane. The peripheral portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the base plane. The orifice penetrates the facet and extends along an orifice axis that is oblique with respect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the base plane, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the orifice disc is also described.

Abstract: The present disclosure provides an internal combustion engine having an engine housing with at least one cylinder that has diameter less than about 3 inches. A fuel injector is provided and disposed at least partially within the at least one cylinder, and includes a plurality of outlet orifices having a diameter between about 50 microns and about 110 microns. The disclosure further provides a method of operating an internal combustion engine. The method includes the steps of rotating an engine crank shaft of the engine at a speed greater than about 5000 revolutions per minute, injecting a quantity of fuel into each of the cylinders, and burning at least every fourth piston stroke a sufficient quantity of the injected fuel to yield a brake mean effective pressure of at least about 200 lbs. per square inch.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: A spray nozzle includes a body defining an inlet chamber and an outlet. An orifice disk, adjacent the outlet, has opposing surfaces, an inner sidewall extending between the opposing surfaces which defines an orifice, and a peripheral sidewall extending between the opposing surfaces for centering the orifice disk within the inlet chamber. A swirl disk, adjacent to the orifice disk, has opposing surfaces and a sidewall extending between the opposing surfaces. The sidewall of the swirl disk forms a periphery for centering the swirl disk, a hollow for creating a vortex adjacent to the orifice and an inlet for channeling fluid from the periphery to the hollow. A plug is fixed within the inlet chamber of the body for retaining the orifice and swirl disks as well as defining an annulus area in fluid communication with the inlet of the swirl disk.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: A nozzle having a housing and an assembly including at least two conjugated parts separated by a spacer seal. The assembly is arranged in the housing so as to form a nozzle outlet. At least one of he housing, the parts, and the spacer seal are deformable so as to define a geometry of the nozzle outlet and seal surfaces between the parts and the spacer seal and between the parts and the housing.

Abstract: Disclosed is a micro droplet generator which comprises a lower space for containing a control panel, and an upper chamber for containing fluid medicine and including an nebulized area formed on a joining portion of the space and thereof. On the nebulized area there are provided an outer nozzle plate including tapered apertures and a piezoelectric element electrically coupled to the control panel. Activating the piezoelectric element will vibrate it to sufficiently mix the liquid medicine for developing fluid cavitation in the nebulized area, forms a stream of droplets from small particles of the fluid medicine and ejects the same therefrom, condenses the large particles of the fluid medicine due to collision therebetween, and drops the condensed liquid into the fluid medicine. Also, any malfunctioned component can be replaced individually.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: A fuel injector includes a metering orifice disc. The metering orifice disc includes a peripheral portion, a central portion, and an orifice. The peripheral portion is with respect to a longitudinal axis and extends parallel to a base plane. The peripheral portion bounds the central portion. The central portion includes a facet that extends parallel to a plane that is oblique with respect to the base plane. The orifice penetrates the facet and extends along an orifice axis that is oblique with respect to the plane. As such, the orientation of the orifice with respect to the longitudinal axis is defined by a combination of (1) a first relationship of the plane with respect to the base plane, and (2) a second relationship of the orifice axis with respect to the plane. A method of forming a multi-facetted dimple for the metering orifice disc is also described.

Abstract: A fluid injection nozzle has an injection port plate, an injection port and a protruding portion. The injection port plate is to be mounted on a downstream end of a fluid injection valve so that a center axis thereof is coaxial to the fluid injection valve. The injection port penetrates the injection port plate between an inlet and an outlet. The protruding portion protrudes from an inner surface of the injection port to shift a direction of at least a part of a fluid flow passing through the injection port to flow in a circumferential direction of the inner surface.

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

Abstract: A micro-droplet generator, comprising a chamber, enclosed by a casing, a spraying plate, having a plurality of spraying holes, a piezoelectric plate, a signal connector, and a storage tank. The piezoelectric plate is mounted inside the chamber, having a fixed end fastened on the casing and a free end performing a bending movement. The input port issues signals that cause the bending movement of the piezoelectric plate. The chamber and the storage tank contain liquid, with a constant difference of liquid levels in the chamber and the storage tank being maintained, so that negative pressure in the chamber is automatically regulated.

Abstract: The present invention is directed to a gas supply nozzle plate constructed by laminating a plurality of metal members each having a fluid path and branch. A fluid nozzle plate member provided by the invention has high sealing at a joined part, and high reliability even when used in high vacuum or at a high temperature. The fluid nozzle plate member comprises a plurality of plate-like metal members each having a fluid path and/or a branch. In this case, the plurality of plate-like metal members are laminated, and the laminated surfaces thereof are joined together by press forging.

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. The valve seat presents an upper surface which is adapted to engage a valve to seal the supply passage. A nozzle plate is mounted onto the valve seat and includes a plurality of orifice holes therein through which fuel flows. The valve seat further includes a first edge protrusion protruding into the fuel flow for generating a first separation of the fuel flow, thereby creating a plurality of small eddies which are entrained within the fuel flowing adjacent thereto. A turbulence cavity is defined by the nozzle plate and the valve seat wherein fuel flows into the turbulence cavity through the supply passage and out from the turbulence cavity through the plurality of orifice holes.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: Multiple injection holes are formed in an injection hole plate. Each injection hole penetrates the injection hole plate. The injection hole is formed with an inlet side opening and an outlet side opening. The outlet side opening is formed in the shape of a flattened rectangle having a major axis and a minor axis. Therefore, the fuel flowing into the injection hole through the inlet side opening is injected in the shape of a film from the outlet side opening. Thus, liquid film splitting is promoted, so atomization of the fuel is promoted. Since the multiple injection holes are formed in the injection hole plate, the shape of a great fuel spray, which is formed by combining fuel sprays injected from the respective injection holes, can be adjusted easily.

Abstract: A paint spraying nozzle assembly includes a housing having a top wall, a bottom wall a peripheral wall that has a peripheral outer shoulder such that the bottom wall has a greater diameter than the top wall. An opening extends through the bottom and top walls. The opening includes a top portion having a smaller diameter than a bottom portion of the opening. The top wall has a slot therein and the opening extends into the slot. An insert is mounted within the opening. The insert includes an upper section positioned within the top portion and a lower section positioned within the bottom portion. A bore extends through the insert and is aligned with the opening. The housing may be positioned in a retaining nut and secured against a spray gun head such that paint ejected outwardly of the spray gun travels through the bore and outward of the slot.

Abstract: A nozzle for a low pressure fuel injector that improves the control and size of the spray angle, as well as enhances the atomization of the fuel delivered to a cylinder of an engine.

Abstract: A fan jet nozzle for use with an ultra high pressure liquid-phase cleaning media for use in a deflashing apparatus includes a nozzle tip, which is made of a super hard material such as diamond, and is secured inside a nozzle holder through sintering. Upper and lower nozzle bores above and beneath the nozzle tip are processed to converge and communicate with each other inside the nozzle tip, resulting in a center nozzle hole having an elliptical shape. One of the upper and lower nozzle bores is processed into a circular cone shape, and the other one of the upper and lower nozzle bores is processed to have an arched longitudinal sectional shape and a cross sectional shape wherein its width increases toward a center thereof and decreases toward both sides thereof.

Abstract: A fuel injection valve of an internal combustion engine for a vehicle is comprised of a nozzle plate which has a plurality of nozzle holes. Fuel injection jets are injected from the nozzle holes and collided with each other. The thickness of the nozzle plate is equal to or greater than the diameter of the nozzle holes.

Abstract: A director plate system for a fuel injector for use in an internal combustion engine. The system includes flow channels for directing the fuel stream radially inward toward the discharge holes. The cross-sectional area of the flow channels diminish inwardly, in the direction of flow, to accelerate the fuel stream. A swirl element, for imparting tangential velocities or eddies to a plurality of individual fuel streams, can be combined with the radially inward directed flow channels. The director plate system may be provided as individual plates in a stack or may be combined with each other and/or the valve seat in a variety of plate configurations to simplify the number of components.

Abstract: A shower head includes a main body, a locking seat, a locking nut, a water outlet faceplate, an O-ring, an adjusting bolt, and a connecting unit. Thus, the water outlet faceplate is moved toward the main body by rotation of the adjusting bolt, so that the O-ring is closely urged between the water outlet faceplate and the main body, thereby forming a closely sealing effect. In addition, the water outlet faceplate is integrally formed with the locking sleeve, thereby decreasing costs of fabrication, and thereby simplifying the process of assembly.

Abstract: A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice disc includes a member having first and second generally parallel surfaces, and an orifice extending through the member between first and second generally planar surfaces of the member. The orifice is defined by a wall that couples the first and second surfaces. The wall includes first and second wall portions. The first wall portion is spaced from the first surface and extends substantially perpendicular to the first and second generally planar surfaces and about the longitudinal axis to define a transition perimeter. The second wall portion couples the first wall portion to the first surface to define a inlet perimeter on the first surface.

Abstract: An atomizing injector includes a metering set having a swirl chamber, a spray orifice and one or more feed slots etched in a thin plate. The swirl chamber is etched in a first side of the plate and the spray orifice is etched through a second side to the center of the swirl chamber. Fuel feed slots extend non-radially to the swirl chamber. The injector also includes integral swirler structure. The swirler structure includes a cylindrical air swirler passage, also shaped by etching, through at least one other thin plate. The cylindrical air swirler passage is located in co-axial relation to the spray orifice of the plate of the fuel metering set such that fuel directed through the spray orifice passes through the air swirler passage and swirling air is imparted to the fuel such that the fuel has a swirling component of motion. At least one air feed slot is provided in fluid communication with the air swirler passage and extends in non-radial relation thereto.

Abstract: A fuel injection valve has a nozzle having a valve seat formed along an inner wall of the nozzle. Injection holes are located on an outlet side of the valve seat. An outlet section, at which a fuel outlet of the injection hole is open, is provided to said nozzle on a side opposite to said valve seat. An enlargement section extends away from the valve seat while being gradually enlarged from an edge of said outlet section in a radial direction.

Abstract: A shower head assembly includes a main body, a water outlet panel, a mounting tube, a shade, and a locking nut. Thus, the mounting tube is indirectly combined with the water outlet pipe by the universal connector to form a pivotable shower head and is directly combined with the water outlet pipe to form a fixed shower head, thereby enhancing the versatility of the shower head assembly. In addition, the shower head assembly is provided with a shade having a variable shape to vary the pattern and profile of the shower head assembly, thereby enhancing the aesthetic quality and decreasing costs of the shower head assembly.

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 fuel injection valve is comprised of a nozzle plate which has at least four nozzle-hole sets. Each of the nozzle-hole sets has at least two nozzle holes through which fuel injection flows are injected and are collided with each other. The nozzle-hole sets are arranged into two aggregations so that the collided fuel injection flows are joined and are directed to two different directions.

Abstract: A fuel jet adjusting plate has first nozzle holes arranged along a first circle coaxial with a central axis of a valve body and second nozzle holes arranged along a second circle coaxial with the central axis and having a diameter larger than that of the first circle. Each hole axis of the second nozzle holes forms an acute angle with a reference plane perpendicular to the central axis of the valve body smaller than that formed by each hole axis of the first nozzle holes with the reference plane. Hence, fuel sprays injected through the first nozzle holes can be directed away from fuel sprays injected through the second nozzle holes. As a result, the fuel sprays injected through the first nozzle holes do not interfere with the fuel sprays injected through the second nozzle holes, which makes it possible to suitably atomize injected fuel.