Abstract: A method for manufacturing a micro nozzle is disclosed. The method includes the following steps: providing a substrate having a channel for fluids, wherein the thickness of the substrate is D1 and the depth of the bottom of the channel is D3; forming a protrusion having an acute angle ? on the edge of the substrate through the cutting operation; and further forming a nozzle with a thickness D2 of on the tip of the protrusion. The outlet of the channel is located on the tip of the protrusion. Moreover, the thickness of the nozzle on the tip of the protrusion is less than the depth of the channel or than the thickness of the substrate. The micro nozzle made by the method illustrated above can provide a reliable and stable interface for electro-spraying.

Abstract: An example fuel injector orifice plate assembly includes a plastic plate within which is an orifice for metering and directing fuel flow in a desired spray pattern, and a metal support plate for supporting and maintaining the stability of the desired spray pattern generated by the orifices within the plastic plate. The orifice plate includes orifices sized to provide a desired spray pattern of fuel. The metal support plate is more rigid than the orifice plate and provides the desired strength and rigidity for withstanding the cyclical pressure fluctuations caused by operation of the fuel injector.

Abstract: The method of manufacturing a nozzle plate formed with nozzles which eject liquid droplets, the method comprises the steps of: forming and patterning an opaque metal film onto a transparent substrate; forming photosensitive resin over the opaque metal film and the transparent substrate; exposing the photosensitive resin to light from a side adjacent to the transparent substrate; developing the photosensitive resin which has been exposed to the light; forming a metal layer on the opaque metal film after the developing step; and separating at least the transparent substrate from the metal layer, wherein the nozzle plate comprises at least the metal layer, and a liquid droplet ejection surface of the nozzle plate is on a side where the transparent substrate has been separated in the separating step.

Abstract: A method for fabricating a flow passage in a director plate is presented, comprising placing a director plate and a sacrificial strip immediately adjacent a surface of the director plate in a stamping tool. The director plate is clamped to the sacrificial strip, and a flow passage is created in the director plate by punching a tool piece substantially completely through a predetermined location on the director plate. The flow passage in said director plate may comprise a fluid-discharge orifice for a fuel injector. The flow passage may be punched substantially orthogonal to the planar surface of the director plate, or, alternatively, oblique to the planar surface of the director plate.

Abstract: A male die for forming a member incorporated in a liquid ejection head is disclosed. Each of a plurality of first forging punches is operable to form a first recess on a metal plate. The first forging punches are arranged at a fixed pitch to form a punch row in a first direction. Each of a plurality of second forging punches is operable to form a second recess on the metal plate. The second forging punches are arranged adjacently to first forging punches located at both ends of the punch row. The first recess is to be a first part of the member which is used to eject liquid from the liquid ejection head, and the second recess is to be a second part of the member which is not used to eject liquid.

Abstract: A fluid delivery module for use in preparing a substrate is provided. The fluid delivery module includes a process bowl designed to contain a substrate to be prepared. The process bowl has a bottom wall and a sidewall. The fluid delivery module further includes a fluid delivery ring configured to be attached to the sidewall of the process bowl. The fluid delivery ring includes a plurality of inlet and outlet pairs. Each of the plurality of inlet and outlet pairs is defined in the fluid ring and is designed to receive a respective supply tube. Each respective supply tube has an end that terminates at each of the outlets of the fluid delivery ring and is configured to direct fluid onto a surface of the substrate.

Abstract: A fuel injector has an orifice member having an aperture for injecting atomizing and metering fuel. The orifice member is made of a plate material. The orifice member is machined to form the aperture. Then, the orifice member is processed by at least two shot blasting process in opposite directions to remove burrs and trim edges of the aperture. After the process, the orifice plate is inspected by measuring an actual flow rate of the aperture. Then, the orifice plate is processed by a shot blasting process again in accordance with the measured flow rate and a target flow rate.

Abstract: There is disclosed a punch for forging a metallic plate member. A first die is adapted to be opposed to a first face of the plate member. A second die is adapted to be opposed to a second face of the plate member. A plurality of first projections are provided on the first die and arranged in a first direction with a fixed pitch. Each of the first projections is elongated in a second direction perpendicular to the first direction. A plurality of second projections are provided on the second die and arranged in the first direction with the fixed pitch. Each of the second projections is elongated in the second direction and provided with a concave portion extending in the second direction at a distal end portion thereof. The plate member is sandwiched between the first die and the second die so that the first projections and the second projections are cut into the plate member in a third direction orthogonal to the first direction and the second direction, to perform a first forging work.

Abstract: An upper die and a lower die are provided. An unpenetrating hole is formed at an upper face of a metal board with the upper die, so that a protrusion is formed on a lower face of the metal board at a portion corresponding to the unpenetrating hole. A flat portion is formed on the protrusion with the lower die. The unpenetrating hole is punched with the upper die while supporting the flat portion with the lower die to form the through hole.

Abstract: A small hole diameter measuring apparatus including: a flow rate measurement section comprised of an automatic pressure control device which supplies a fluid to the inlet side of small holes in a plate while maintaining the outlet- and inlet-side pressures of the small holes in the critical state of the fluid and controlling the inlet-side pressure to a predetermined inlet-side pressure; a plate holding section comprised of a plate supporting device which rotatably holds the plate, and a test probe supporting device which supports a test probe so that the test probe is moved vertically and horizontally; and a control section comprised of a calculation and judgment part, which calculates the hole diameter during the supply of the fluid based upon the measured value of the flow rate from the flow rate measurement section, and an external output part, which outputs the calculated value to the outside.

Abstract: A system for molding and assembling a fluid spray device, said system comprising two multi-cavity molds (B, C; B?; C?) for molding two different parts (100, 200) of said fluid dispenser device, the system being characterized in that the first part (100) is a spray head and the second part (200) is an insert for assembling in said spray head (100), said system comprising means for assembling parts coming from each of the cavities of the first multi-cavity mold (B; B?) in pairs always with parts coming from a corresponding respective cavity of said second multi-cavity mold (C; C?), such that the same insert (200) is always assembled in the same spray head, thereby guaranteeing constant spraying performance for each dispenser device assembled from the same pair of cavities.

Abstract: Methods of molding fluidic oscillator device having at least a power nozzle for projecting a jet of liquid into an interaction region with an upstream end, opposing side walls, opposing top and bottom walls, and a pair of control ports at the upstream end. The side walls diverge from the power nozzle. A mold cavity is provided in which the power nozzle, interaction region (IR) and control ports can be molded as a core without any seam lines. For a crossover type IR in which the upstream ends diverge and the downstream ends converge to a common throat area and coupled to an outlet aperture, a further mold cavity is provided in which the converging portion of the crossover type interaction region is formed as a second core having a joinder line to the first the core which is transverse to the direction of liquid flow in the fluidic.

Abstract: In response to the recent various requests, the present invention provides a method for manufacturing filler neck to facilitate jointing a mouthpiece and a feeding pipe which were manufactured separately into an integrated filler neck having an excellent hermeticity. The method for manufacturing a filler neck 1 comprises the following steps: jointing an inner face of the circumferential wall portion 16 of a feeding pipe and an outer face of the circumferential wall portion 12 of the mouthpiece, and integrating with the mouthpiece 2 and the feeding pipe 3, wherein the outer of the mouthpiece and the inner face of the feeding pipe are in relation to be fitted in a press-fitted condition, a seam welding is executed to the welding area W provided in a range of the overlapped area S defined by the width of the circumferential wall portions.

Abstract: In a high pressure fuel injection pipe, pipe extension and heat treatment are repeated by using a header manufactured by transformation induced plastic type strength steel. A process for depositing residual austenite is then performed, after which a final pipe extension process is performed, and the joint portion is molded and bending processing is performed without performing perfect annealing at the size of a product.

Abstract: The present invention provides a part having passages from an internal surface to an external surface formed by the intersection of internal and external grooves. The present invention further provides a method of providing a part having passages from an internal surface to an external surface formed by the intersection of internal and external grooves. The part includes at least one internal groove located in an internal surface and at least one external groove located in an external surface, wherein the internal groove and the external groove intersect to form at least one passage between the internal surface and the external surface.

Abstract: A method for manufacturing a fuel inlet having a good sealing property and a screw structure formed in a precise position involves expanding one end of a long-length stainless pipe (metal pipe) using a cored bar, the tip of the expanded portion which becomes non-uniform as a result of the expanding step is cut off, a screw structure is formed in the expanded portion by using a punch, the tip of the expanded portion which becomes non-uniform as a result of the screw structure forming step is cut off, and thereafter curl forming is conducted to the end of the expanded portion which becomes uniform by using a die so as to provide a seal portion.

Abstract: A system for machining a component with complex contour. The machining system includes a coolant flow nozzle with an interior passage with a first portion having a first cross-sectional shape, and a second portion having a second cross-sectional shape, with the second cross-sectional shape selected so that fluid discharged from the nozzle has a selected cross-sectional shape. A method of fabricating a coolant flow nozzle with an interior passage that has a varying cross sectional shape.

Abstract: A method is provided for perforating a steel plate, forming a devolatilizer nozzle from the steel plate, and heat treating the devolatilizer nozzle. The devolatilizer nozzle may have a yield strength of at least about 110 ksi, and a tensile strength of at least about 140 ksi. The perforations in the steel plate are holes in the nozzle and may be no more than about 0.05 inches in diameter. The thickness of the steel plate may be from about 0 to about 0.75 inches. The nozzle may include at least about 500,000 perforations where the center-to-center hole distance may be at least about 0.08 inches. The capacity of the devolatilizer nozzle may be from about 0 to about 75,000 pounds per hour.

Abstract: Several methods of forming angled orifices in a metal sheet are described in which an angled orifice can be formed from a preformed right-angled orifice. Each angled orifice has an oblique axis relative to at least one of a first surface and a second surface of a metal sheet. One of the methods can be achieved by punching the metal sheet in a first direction along a first axis perpendicular to one of the first and second surfaces of the metal sheet with a first tool piece so as to form a first orifice, the first orifice defining an opening having wall surfaces parallel to the first axis; and punching the metal sheet with the first tool piece proximate the first orifice in the first direction along a second axis parallel and offset to the first axis so as to form a first wall surface of the first orifice extending between the first and second surfaces of the metal sheet oblique to the first axis.

Abstract: A lead hole is formed in a base material of an injection hole member with a straight punch, and then, a taper hole is formed in the base material by widening the lead hole with a taper punch. An intersection line between a virtual plane perpendicular to a central axis of the lead hole and an inner peripheral surface of the lead hole is elliptic in shape, whose major axis is directed along an intersection line between a virtual plane, which includes the central axis of the lead hole and a thickness direction axis of the base material, and the virtual plane perpendicular to the central axis of the lead hole. An intersection line between a virtual plane perpendicular to a central axis of the taper punch and an outer peripheral surface of the taper punch is round in shape.

Abstract: A method of manufacturing a fuel injector is disclosed. The method includes assembling a power group assembly with a valve group assembly to form the fuel injector. The power group assembly includes an overmold formed over a coil assembly. The valve group assembly includes a tube assembly formed by connecting an inlet tube to a valve body. The valve body includes a seat, a lower guide, and an armature/ball assembly disposed within the valve body. A retention member can be used to retain the power group assembly to the valve group assembly.

Abstract: A fuel inlet comprises an inlet pipe, a breather tube, a retainer, a spiral groove, and the like. The inlet pipe is formed by processing a metal pipe and has an expanded portion, a taper portion, and a main body in the order from the fuel port. The expanded portion is formed by increasing the diameter by bulging. In order to prevent defects in the pipe such as cracks from being caused during bulging, SUS304, SUS304L, or SUS436 according to JIS is used as the material of the pipe. The diameter of the main body is 25.4 mm and the diameter of the expanded portion is 50 mm. A spiral groove on which a screw-type fuel port cap can be screwed is formed in the vicinity of the open end of the expanded portion, by crimping the inlet pipe and the retainer together. On the outer surface of the expanded portion in the vicinity of the open end is provided an outer-cylinder-like flange formed integrally with the inlet pipe.

Abstract: It is an object of the invention to provide a method of working an injection hole of an electromagnetic type fuel injection valve so that when extrusion by using a punch is adopted, the punch does not break, even in the case where a central axis line of the injection hole of the electromagnetic type fuel injection valve is inclined to a line perpendicular to a face of a plate-like material to be punched. A front end, tapered portion of the punch is inclined in a direction opposed to a plate-like material relative to a central axis line of the punch to facilitate the punch along a sliding, inner face of a punch holder. While achieving a reduction in production cost, the divergent-shaped injection hole can accurately be formed in the plate-like material. A side force (Fs) is produced when the front end portion of the punch impinges on the plate-like material.

Abstract: A fuel nozzle including a nozzle stem having an annular overhang and a heat shield secured to the overhang is described. More specifically, and in one embodiment, the nozzle stem includes an upstream end and a downstream end. The annular overhang is intermediate to the upstream end and the downstream end of the stem. The heat shield includes a first end and a second end, and the heat shield is welded to the annular overhang at the heat shield first end. An annular air gap is between the nozzle stem and the heat shield.

Abstract: A method of supplying suction nozzles with electric components supplied from feeders each of which is operable to feed the electric components to its component-supply portion and which are arranged in a direction intersecting a direction of feeding of the components, the suction nozzles being held by nozzle holders supported by a movable member and arranged in the direction arrangement of the feeders, the movable member being movable to permit each suction nozzle to hold the component by suction, wherein a distance between axes of adjacent ones of the selected suction nozzles in the direction of arrangement of the feeders is adjusted, and/or a component-supply position of each feeder at which the component is located after each feeding action of the feeder is adjusted, so that the selected suction nozzles are aligned with the components at the component-supply positions, and the selected suction nozzles are operated to simultaneously hold the components located at the component-supply positions.

Abstract: A process of laser welding high carbon martensitic stainless steel components and austenitic stainless steel components by a stabilized ferritic stainless steel fusion zone modifier in the weld joint, and articles formed therefrom. The stabilized ferritic stainless steel fusion zone modifier comprises, in terms of weight percentage, from about 10% to about 35% chromium, and at least one element selected from the group consisting of no more than about 1.5% titanium and no more than about 1.5% columbium. The stabilized ferritic stainless steel fusion zone modifier present in the fusion zone inhibits and prevents solidification cracks and micro-fissures from forming in the weld joint, and assists immunity to environmental degradation.

Abstract: Semi-spherical supports are used in the piercing of small, consistently sized holes in a soft metal. In particular, a flow control device, such as an orifice plate, can be fabricated with small, consistently sized flow apertures to regulate flow in a gas flow regulating device. By using semi-spherical supports, the need for hand-punching and real-time flow calibration can be avoided and automated machinery with a tapered piercing tool can be used to fabricate the flow control device.

Abstract: The present invention relates to a method for manufacturing a jet diffusor for a shower head or the like, which jet diffusor is manufactured by two parts, a hole washer (13) of a hard plastic material and a nozzle washer (14) of an elastic rubber or plastic material. The nozzle washer (14) is manufactured, preferably by injection moulding, with a plain bottom disk (21) and with socket shaped nozzles (22) substantially perpendicularly arranged in relation to this, and raised from the bottom disk socket shaped nozzles (22). The hole washer (13) is manufactured, preferably by injection moulding, with at least one arched underside (15) and with the holes (16) arranged in diverging directions. The nozzle washer is brought to contact with the arched underside of the hole washer, so that the socket shaped nozzles are pressed into and partially through the holes, whereby the nozzles are subjected to a directional change according to the holes in the hole washer.

Abstract: A method of diminishing the size of the cross section of an opening of a first hollow device located in an undersea flow pipe through which passes a fluid flow uses a second hollow device to be inserted into said undersea flow pipe, said second hollow device being provided with a leading portion and a trailing portion, said leading portion being of a smaller external diameter than said trailing portion, said second hollow device being provided with a passage extending longitudinally theretrough. Next a foam pig is inserted immediately after said second hollow device. Urged by said fluid flow, said foam pig displaces said second hollow device along said undersea flow pipe, until said second hollow device encounters said first hollow device. Said leading portion of said second hollow device is then inserted into an opening of said first device, thereby diminishing the size of a cross section of said opening.

Abstract: A method of assembly of a fuel injector having a valve plunger reciprocable in a guide tube for movement from a closed position engaging a valve seat to an open position engaging a valve stop by energizing of a solenoid coil to move the plunger against a biasing spring, wherein the method includes setting the valve stop at a position effective to establish the desired valve stroke, and fixing the valve stop to the guide tube by first laser spot welding the valve stop in the guide tube to fix the position of the valve stop without changing the set gap, and then laser seam welding the valve stop in the guide tube at an axial location beyond the spot welds, relative to a plunger-engagable end of the valve stop, to provide a hermetic seal around the valve stop.

Abstract: A nozzle plate, particularly for fuel injection valves, with at least one flow path which has at least one supply opening, which path includes a ring gap which opens into a ring-shaped exit opening, as well as a method for the production of such a nozzle plate. For the nozzle plate, it is provided that the flow path has a ring channel assigned to the supply opening, which channel makes a transition into a cylinder-shaped ring gap with a cross-section which narrows in the region of the exit opening. The production of the nozzle plate takes place in that a cavity mold corresponding to the flow path through the nozzle plate is produced, that a layer embedding the cavity mold is galvanically deposited, and that the cavity mold is removed from the galvanically deposited layer.

Abstract: A burner having an elongated cylindrical body closed at one end with a plurality of ports spaced apart in two rows along the upper segment of the body, said ports formed by punching. The ports have an upper edge and a lower edge wherein the lower edge is displaced a first distance below the upper edge and a second distance beyond a vertical axis tangent to the upper edge. Accordingly, flames are emitted substantially sideways out of the cylindrical body and any drippings on the tube are directed away from the cavity of the cylindrical body.

Abstract: A fuel injector nozzle includes a nozzle body and a poppet disposed in the body for reciprocating movement. The body has an internal bore surrounding the poppet. The internal bore tapers in a constant angle of taper from a front seating region to a fuel reservoir region. The poppet has a corresponding surface which diverges slightly from the bore. The surfaces of the bore and poppet form flow control surfaces which terminate in a sharp-edged orifice at the front face of the nozzle. When the poppet is displaced to an open or flow position, fuel is accelerated to the orifice and atomized into a combustion chamber. The poppet surface being formed so as to properly direct fuel after the poppet surface is machined.

Abstract: A laminated fuel swirl element is employed, in which a strong swirl force flow is imparted to the fuel at a remote position relative to an injection hole, while on the other hand, at a position near the fuel injection hole, a weak swirl force is imparted to the fuel. A complex solid cone spray can be obtained in this way, which spray has a superior dispersion characteristic obtained by attracting small diameter droplets, which are generated at an outer peripheral portion of the spray, through a spray portion which is generated in the vicinity of a central area of the spray and has a large velocity.

Abstract: A nozzle for a liquid injection device, wherein a ceramic green sheet (11) used as a bottom part of a liquid injection device having a nozzle (12) disposed between a die (2) and a stripper (3) storing a punch (4) and the punch (4) is moved to form a hole part constituting the nozzle (12), the green sheet (11) is disposed between a die (2′) having a cavity wherein the outer shape of a projected part (12a) of the nozzle (12) is reversed and a stripper (3′) storing a punch (5) so that it is positioned in the direction opposite to that in the previous disposition and the punch (5) is moved to obtain the outer shape of the nozzle (12), and the green sheet (11) is baked, whereby, even in a drying device to which air is constantly applied vertically to the delivery direction of liquid, no injected liquid is deposited substantially at the tip part of the nozzle (12).

Abstract: A nozzle rod is formed by fixing a thick diamond chip to a tip of a nozzle pipe made of a super hard metal, the other end of the nozzle pipe is thinned and the nozzle rod is joined with a shank by way of this end, a tip of the nozzle rod and vicinities thereof are so shaped as to have a predetermined sectional shape, a center hole is formed in the diamond chip by wire electro spark machining and expanded for forming a nozzle slot having a nozzle opening consisting of a center slit and “U-shaped” slits which are disposed symmetrically on both sides of a longitudinal direction of the center slit, thereby composing an electronic part adsorbing nozzle. This construction enables it to provide an electronic part adsorbing nozzle which is economical and excellent in durability.

Abstract: A method of manufacturing a nozzle assembly and a nozzle formed thereby in which first and second body portions are formed and connected together to form an enclosure, and one end of the enclosure is connected to a flange assembly.

Abstract: A method for producing a nozzle having a projecting tip part, including the steps of disposing a ceramic green sheet between a first die and a stripper containing a first punch, moving the first punch through a first surface of the ceramic green sheet to form a hole therethrough, inverting the ceramic green sheet, disposing the inverted ceramic green sheet between a second die and a stripper containing a second punch, the second die having a cavity in the shape of a negative configuration of the projecting tip part, moving the second punch through the hole formed in the ceramic green sheet to force a portion of the ceramic green sheet into the cavity of the second die and form the projecting tip part, and baking the ceramic green sheet to form the nozzle.

Abstract: Gas-assisted atomizing devices are provided that include liquid orifices, which release liquid, and gas orifices, which release gas to atomize the liquid into droplets. The atomizing devices are formed by at least a first layer and a second layer. The atomizing devices can include a gas supply network and a liquid supply network that supply gas and liquid to the gas and liquid orifices.