EP1355061A1 - Soupape d'injection, en particulier soupape d'injection de carburant - Google Patents

Soupape d'injection, en particulier soupape d'injection de carburant Download PDF

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Publication number
EP1355061A1
EP1355061A1 EP03016782A EP03016782A EP1355061A1 EP 1355061 A1 EP1355061 A1 EP 1355061A1 EP 03016782 A EP03016782 A EP 03016782A EP 03016782 A EP03016782 A EP 03016782A EP 1355061 A1 EP1355061 A1 EP 1355061A1
Authority
EP
European Patent Office
Prior art keywords
opening
valve seat
injection valve
perforated
perforated disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03016782A
Other languages
German (de)
English (en)
Other versions
EP1355061B1 (fr
Inventor
Wilhelm Hopf
Kurt Schreier
Siegfried Goppert
Kurt Schraudner
Henning Teiwes
Joerg Heyse
Dieter Holz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1355061A1 publication Critical patent/EP1355061A1/fr
Application granted granted Critical
Publication of EP1355061B1 publication Critical patent/EP1355061B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating
    • Y10T29/301—Method
    • Y10T29/302—Clad or other composite foil or thin metal making

Definitions

  • the invention is based on an injection valve according to the Genus of claim 1.
  • Fuel injector known to be a clad Has perforated disc element. It is made Perforated disk element made of a metal strip resistant metal like molybdenum and one on it overlying coating of a soft metal such as copper. By The flat layers are crimped over the valve seat support of the perforated disc element held on the valve seat body.
  • the injection valve according to the invention with the characteristic Features of claim 1 has the advantage that simple Way an even fine atomization of the medium to be sprayed is achieved without additional energy, with a particularly high atomization quality and one to the adapted beam shaping achieved becomes.
  • This is advantageously achieved in that a perforated disc arranged downstream of a valve seat an opening geometry for a complete axial Passage of the medium, in particular the fuel, has, which by a fixed valve seat Valve seat body is limited.
  • the Valve seat body already function as one Influencing the flow in the perforated disc.
  • an S-blow in the flow is advantageously Atomization improvement of the fuel achieved since the Valve seat body with a lower face Spray openings of the perforated disc covered.
  • valve seat body and perforated disc scored S-blow allowed in the flow the formation of strange jet shapes with a high Atomization.
  • the perforated disks allow connection with correspondingly designed valve seat bodies for in- and Two- and multi-jet sprays Variants such as B. rectangles, triangles, crosses, ellipses.
  • Variants such as B. rectangles, triangles, crosses, ellipses.
  • Such unusual jet shapes allow an accurate one optimal adaptation to given geometries, e.g. B. on different intake manifold cross sections of internal combustion engines. This results in the advantages of a form-fitting Utilization of the available cross-section for homogeneous distributed, exhaust-reducing mixture introduction and one Avoidance of exhaust-harmful wall film deposits on the Saugrohrwandung. With such an injector can consequently, the exhaust gas emission of the internal combustion engine is reduced and also a reduction in fuel consumption be achieved.
  • FIG. 1 shows it partially illustrated injection valve with a first manufactured perforated disc
  • Figure 2 is a schematic diagram of the Process flow in the manufacture of a perforated disc with the stations A to E and when attaching one Perforated disk in an injection valve with stations F and G
  • Figure 3 embodiments of film strips for Production of a three-layer perforated disc
  • Figure 4 a Perforated disc belt with several superimposed Film strips
  • Figures 5 and 6 with a deep-drawing tool a perforated disc belt to be machined
  • FIG. 6a second embodiment of a deep-drawing tool Figure 7 a first example of a deep-drawn one Valve seat body attached perforated disc, Figure 8 a second example of a thermoformed one Valve seat body attached perforated disc, Figure 9 a third example of a deep-drawn, on one Valve seat body attached perforated disc, Figure 10 a another perforated disc in a plan view, Figures 10a to 10c the individual sheet layers of the perforated disc according to Figure 10, FIG.
  • FIG 11 shows a perforated disk in section along the line XI-XI
  • Figure 12 shows a fourth example of a deep-drawn attached to a valve seat body (two-ply) Perforated disc
  • Figure 13 a first central area of a Perforated disc
  • Figure 14 shows a second central area of a Perforated disc
  • Figure 15 a third central area of a Perforated disc to illustrate different Opening geometries.
  • the injector has one tubular valve seat support 1, in which concentrically a longitudinal opening 3 is formed in a longitudinal valve axis 2 is. In the longitudinal opening 3 is a z.
  • tubular Valve needle 5 arranged at its downstream end 6 with a z.
  • spherical valve closing body 7 the extent of which, for example, five flattenings 8 Passing fuel are provided is connected.
  • the injection valve is actuated in a known manner Way, for example electromagnetic.
  • a known manner Way for example electromagnetic.
  • For axial Movement of the valve needle 5 and thus to open against the Spring force of a return spring (not shown) or Closing the injection valve serves an indicated electromagnetic circuit with a magnetic coil 10, one Anchor 11 and a core 12.
  • the anchor 11 is with the End of valve needle 5 facing away from valve closing body 7 through z. B. one produced by means of a laser Connected weld and aligned to the core 12.
  • Valve seat body 16 To guide the valve closing body 7 during the A guide opening 15 serves for axial movement Valve seat body 16.
  • the core 12 opposite end of the valve seat support 1 is in the concentric to the longitudinal axis 2 of the valve Longitudinal opening 3 of the z.
  • cylindrical valve seat body 16 tightly assembled by welding.
  • the valve seat body 16 with an inventive or produced according to the invention e.g. pot-shaped Perforated disc 21 concentrically and firmly connected, that is directly on the valve seat body 16 with a bottom part 22 is present.
  • the perforated disc 21 is at least two, in Embodiment of Figure 1 three a small thickness having, formed metal sheet layers 135, so that a so-called laminated perforated disc is present.
  • valve seat body 16 and perforated disk 21 takes place, for example, by a circular and dense first weld formed by means of a laser 25. Due to this type of assembly there is a risk of undesirable deformation of the perforated disc 21 in her middle area with that provided there Opening geometry 27 avoided.
  • To the bottom part 22 of the Pot-shaped perforated disk 21 encloses itself on the outside circumferential retaining edge 28, which is in the axial direction extends away from the valve seat body 16 and up to its end is slightly tapered outwards.
  • the Retaining edge 28 exerts a radial spring action on the wall the longitudinal opening 3. This will when inserting the Valve seat body 16 in the longitudinal opening 3 of the Valve seat carrier 1 chip formation at the longitudinal opening 3rd avoided.
  • the holding edge 28 of the perforated disc 21 is on his free end with the wall of the longitudinal opening 3 for example by a circumferential and dense second Weld 30 connected.
  • the tight welds prevent fuel from flowing through undesired Place in the longitudinal opening 3 directly in a Intake pipe of the internal combustion engine.
  • the insertion depth of the valve seat body 16 and pot-shaped perforated disk 21 existing valve seat part in the longitudinal opening 3 determines the size of the stroke Valve needle 5, since the one end position of the valve needle 5 at non-excited solenoid 10 by the system of Valve closing body 7 on a valve seat surface 29 of the Valve seat body 16 is fixed.
  • the other end position the valve needle 5 is when the solenoid 10 is excited for example by the anchor 11 resting against the core 12 established.
  • the path between these two end positions Valve needle 5 thus represents the stroke.
  • the spherical valve closing body 7 acts with the in Direction of flow tapering in the shape of a truncated cone Valve seat surface 29 of the valve seat body 16 together, the in the axial direction between the guide opening 15 and the lower end face 17 of the valve seat body 16 is formed is.
  • FIG. 2 shows a schematic diagram of the process flow in the Production of a perforated disc 21 according to the invention, wherein the individual manufacturing and processing stations only are represented symbolically. Based on the following Figures 3 to 6 are still individual processing steps explained in more detail.
  • A. Station are located according to the desired number of Sheet layers 135 of the later perforated disc 21 sheet foils as for example, rolled up film strips 35.
  • at Use of three film strips 35a, 35b and 35c for Production of a three sheet layers comprising 135 Sheet metal laminated perforated disc 21 is for the later Processing, especially when joining, expedient, the middle To coat film strips 35b.
  • the film strips 35 are subsequently in large numbers per slide 35 same opening geometries 27 of the perforated disc 21 and Auxiliary openings for centering and adjusting the Film strips 35 or for later exposure of the Perforated disks 21 introduced from the film strips 35.
  • This processing of the individual film strips 35 takes place in station B.
  • station B there are tools 36 provided with which in the individual film strips 35 the desired opening geometries 27 and the auxiliary openings be molded. All essential contours are included through micro punching, laser cutting, eroding, etching or comparable processes. Examples of such Figure 35 illustrates film strip 35 processed in this way 3.
  • the film strips 35 run through the processed Station C, which is a heater 37 in the film strips 35, for example, in preparation of a soldering process are heated inductively.
  • Station C is only provided as an option, as others, one at any time Joining processes that do not require heating to connect the Film strips 35 can be applied.
  • the individual parts are joined Foil strips 35 one on top of the other, the foil strips 35 with the help of centering devices to each other exactly be positioned and for example by rotating Pressure rollers 38 pressed together and transported on become.
  • Laser welding, Light beam welding, electron beam welding, Ultrasonic welding, pressure welding, induction soldering, Laser beam soldering, electron beam soldering, gluing or others known methods are used.
  • Perforated disc belt 39 in station E processed such that Perforated disks 21 in the for installation in the injection valve desired size and contour.
  • the perforated disks 21 are separated, for example by punching out the perforated disc band 39 with a Tool 40, in particular a punching tool.
  • the levels punched-out perforated disks 21 can already be so in one Injector are used.
  • a tool 40 ' in particular one Thermoforming tool, the perforated disks 21 from the Perforated disc band 39 by tearing or cutting to separate and thus separate, the Perforated disks 21 at the same time directly with a cup-shaped Be given shape. Is punching out and a cup-shaped shape of the perforated disks 21 is desired, so is a deep-drawing process or a after punching out Flanging required.
  • the method steps for producing the perforated disks 21 are so far that only below the perforated disks 21 are installed.
  • the isolated and perforated disks 21 are formed in the desired manner in a next process step at the bottom End face 17 of the valve seat body 16 with the aid of a Joining device 45 fastened, advantageously to achieve a tight and tight connection
  • Laser welding device is used (station F).
  • laser radiation 46 is the circular weld seam 25 achieved.
  • various machining tools 48 with which methods how honing (drawing grinding) or hard turning can be carried out, especially the inner contours of the valve seat body 16 (e.g. guide opening 15, valve seat surface 29) reworked.
  • FIG. 3 Foil strip 35a which later becomes the valve closing body 7 facing upper sheet metal layer 135a and the film strip 35c the lower valve valve 7 facing away later Sheet layer 135c of the perforated disc 21, during the Film strip 35b the one lying between these two Forms sheet layer 135b in the perforated disk 21.
  • Film strip 35a which later becomes the valve closing body 7 facing upper sheet metal layer 135a and the film strip 35c the lower valve valve 7 facing away later Sheet layer 135c of the perforated disc 21, during the Film strip 35b the one lying between these two Forms sheet layer 135b in the perforated disk 21.
  • two to five film strips 35 one above the other arranged, each a thickness of 0.05 mm to 0.3 mm, in particular about 0.1 mm.
  • Each film strip 35 is in station B with an opening geometry 27 provided, which extends over the length of the film strip 35 in repeated large numbers.
  • the upper film strip 35a has an exemplary embodiment Opening geometry 27 in the form of a cross-like Inlet opening 27a, the middle film strip 35b one Opening geometry 27 of a passage opening 27b in a circular shape with a larger diameter than the extent of the cruciform Inlet opening 27a and the lower film strip 35c one Opening geometry 27 in the form of four circular, in Cover area of the passage opening 27b lying Spray openings 27c.
  • In station B next to these opening geometries 27 further auxiliary openings 49, 50 brought in.
  • auxiliary openings 49 as Centering recesses molded in according to the shape the tools or aids that will later intervene there be angular, rounded, tapered or beveled can.
  • Other auxiliary openings 50 become crescent-shaped respective opening geometries 27 surrounding in the Film strips 35 are provided as openings.
  • the e.g. four crescent-shaped auxiliary openings 50 close with their inner Contour a circle with a diameter of later Perforated disc 21 a.
  • the from the auxiliary openings 50 enclosed circular areas in the Film strips 35 are referred to as blanks 53.
  • auxiliary openings 50 taper to a point, with between the individual auxiliary openings 50 narrow webs 55 are formed which are in the range of the round diameter a width of have only 0.2 to 0.3 mm.
  • punching or deep drawing in station E the webs 55 tear, causing the perforated disks 21 are exposed.
  • Can in a particularly effective manner also several film strips 35 to a larger one Foil carpet can be summarized on the disc 53 in two Dimensions are arranged.
  • FIG 4 shows schematically a perforated disc band 39 in the Station D, where the film strips are brought together 35 is shown staggered. Starting from the left first only the lower film strip 35c, on which the middle film strip 35b opens. The upper Film strip 35a completes the perforated disc band 39, the there are three layers in the two right round blanks 53. In the top view of the round blanks 53 shows that the Spray openings 27c offset from the inlet opening 27a are arranged so that a perforated disc 21st medium flowing through, e.g. Fuel, a so-called S-shock experienced within the perforated disc 21, the one Improves atomization.
  • a perforated disc 21st medium flowing through e.g. Fuel
  • auxiliary openings 49 grips a centering device 57 (index pins, Index bolt), which ensures that the blanks 53 of the individual film strips 35 dimensionally accurate and secure be placed on top of one another before the film strips 35 be connected to each other.
  • the auxiliary openings 49 can also as feed grooves for automatic transport of the Foil strip 35 or the perforated disc band 39 used become.
  • the fixed connections of the film strips 35 through Welding, soldering or gluing can be done both in the field of Rounds 53 as well as outside of rounds 53 near the Foil edges 52 or in central areas 58 between two opposite auxiliary openings 49 each be made.
  • the deep-drawing tool 40 schematically shown that the perforated disc band 39th is going through.
  • the perforated disc band 39 lies with the Edge areas between the auxiliary openings 50 and Foil edges 52 e.g. on a workpiece support 59, against which it is pressed by means of a hold-down device 60.
  • the hold-down device 60 has at least partially one frusto-conical opening 61, which has a matrix function to form the holding edge 28 of the perforated disc 21 takes over.
  • stamp counterpart 64 On the stamp 63 opposite Side of the perforated disc band 39 is in the opening 61 of the Hold-down device 60 is provided with a stamp counterpart 64 the movement of the stamp 63 follows, but the contour of the bottom part 22 of the perforated disk 21.
  • the through the Stamp 63 force applied to the round blank 53 the greater is as the counterforce of the stamp counterpart 64, leads to a tearing of the blank 53 from the perforated disc band 39 in Area of the webs 55 and for the deformation of the round blank 53 in one pot-shaped perforated disk 21.
  • current procedure is a translational tensile pressure forming such as deep drawing or Cupping.
  • a sheet metal edge 65 remains torn off from the round blank 53 Waste in the deep-drawing tool 40 ', which, however, is recycled and can be used in the production of new sheet metal foils.
  • Waste in the deep-drawing tool 40 ' which, however, is recycled and can be used in the production of new sheet metal foils.
  • On a firm connection of the film strips 35 in station D can to be completely dispensed with if by deep drawing or cups in station E the holding edge 28 of the perforated disk 21 is generated almost perpendicular to the bottom part 22, whereby namely a sufficiently firm connection in the bending area is created.
  • a flatter angle is given, a fixed angle should be used Connect in station D in any case. at desired flat perforated disks 21, e.g. by Punch out from the perforated disc band 39 fixed connections required.
  • FIG. 6a shows a second embodiment of a Deep-drawing tool 40 '' shown, the opposite to the Thermoforming tool 40 'shown in FIGS. 5 and 6 equivalent parts by the same reference numerals Marked are.
  • the deep drawing tool 40 "in one round, first cut the round blank 53, which is subsequently deep-drawn.
  • the stamp 63 is surrounded by a sleeve-shaped cutting tool 67, that defines the opening 62 with its inner wall.
  • the cutting tool moves together with the punch 63 67 perpendicular to the plane of the perforated disc band 39, as it is the arrows indicate.
  • the blank 53 Due to the precisely centered and defined movement of punch 63 and cutting tool 67 against the also axially movable stamp counterpart 64 in the opening 61 of a die 66, the blank 53 is very precise from the perforated disc band 39 by a cutting edge of the Cutting tool 67 cut out.
  • the cutting tool 67 comes into the opening 61 in the die 66 to a standstill, at the same time for a fixation of the Round 53 ensures.
  • FIGS. 6 to 9 show the holding edge 28 after leaving the deep-drawing tool 40 ' e.g. run almost perpendicular to the plane of the bottom part 22.
  • the deep drawing creates the Sheet layers 135 a holding edge 28, which at its free, the Bottom part 22 facing away from the end is stepped ( Figure 7).
  • the holding edge 28 on the one hand a gradation of the Sheet layers 135 in the opposite direction to that Have example according to Figure 7 ( Figure 8) or on the other hand have a free end at which all sheet layers 135 in end at one level ( Figure 9).
  • the Weld 30 at the holding edge 28 is the same choice or different disc diameters interesting.
  • Opening geometries 27 in the film strips 35 or Perforated disks 21 are also countless others (e.g. round, elliptical, polygonal, T-shaped, crescent-shaped, cruciform, semicircular, tunnel portal-like, bone-shaped, e.g. asymmetrical) opening geometries 27 for sheet metal laminated perforated disks 21 conceivable.
  • Figures 10 and 11 show a preferred embodiment of FIG Opening geometries 27 in the individual sheet layers 135 one Perforated disk 21, wherein the figure 10 is a plan view of the Perforated disk 21 is removable.
  • the a sectional view taken along a line XI-XI in Figure 10 again illustrates the structure of the perforated disk 21 with its three sheet layers 135.
  • the upper sheet layer 135a (FIG. 10a) has one Inlet opening 27a with the largest possible circumference, the a contour similar to a stylized bat (or of a double H).
  • the inlet opening 27a has one Cross-section with a partially rounded rectangle two each opposite, rectangular Constrictions 68 and thus three in turn over the Constrictions 68 protruding inlet areas 69th is writable.
  • the three inlet areas 69 are related to the contour comparable to a bat Body / torso and the two wings of the bat (or the Crossbar to the longitudinal bar of the double H).
  • the lower sheet layer 135c (FIG. 10c) four circular ones Spray openings 27c are provided.
  • the spray openings 27c are in a projection of all Sheet layers 135 partially or in one plane ( Figure 2) largely in the constrictions 68 of the upper sheet metal layer 135a.
  • the spray orifices 27c are offset Inlet opening 27a, i.e. in the projection the Inlet opening 27a nowhere the spray openings 27c cover.
  • the offset can be different Directions can be different sizes.
  • Figure 10b To fluid flow from the inlet port 27a to To ensure the spray openings 27c is in the middle sheet layer 135b (Figure 10b) has a passage opening 27b formed as a channel (cavity).
  • One contour of one rounded rectangular opening 27b is of such a size that it can be projected Inlet opening 27a completely covered and especially in the Areas of the constrictions 68 via the inlet opening 27a protrudes, i.e. a greater distance from the central axis of the Perforated disc 21 has the constrictions 68.
  • FIGS. 12 to 15 show exemplary embodiments of two Sheet metal layers 135 having perforated disks 21 which on a Valve seat body 16 of an injection valve by means of a tight weld 25 are mounted.
  • the valve seat body 16 has a valve seat surface 29 following downstream Outlet opening compared to the three sheet layers 135 perforated disks 21 already have the inlet opening 27a.
  • the valve seat body 16 With its lower outlet opening 27a the valve seat body 16 is shaped such that its lower Front 17 partially an upper cover of the Passage opening 27b forms and thus the entry surface of the Specifies fuel in the perforated disc 21.
  • the outlet opening 27a has a smaller diameter than the diameter of an imaginary circle on which the Spray openings 27c of the perforated disk 21 are located.
  • the transverse impulses due to the turbulence transverse to Current lead among other things that the A large droplet distribution density in the spray Has uniformity. This results in one reduced probability of droplet coagulation, from small droplets to larger ones Drops.
  • the consequence of the advantageous reduction of average droplet diameter in the spray is a relative one homogeneous spray distribution.
  • Through the S-blow is in the Fluid creates a fine-scale (high-frequency) turbulence, which the beam immediately after exiting the Perforated disk 21 disintegrate into fine droplets leaves.
  • FIG. 13 to 15 Three examples of designs of the opening geometry 27 in the central areas of the perforated disc 21 are as Top views shown in Figures 13 to 15. With a The dash-dot line is the one in these figures Outlet opening 27a of the valve seat body 16 in the region of the lower end face 17 symbolically indicated the offset to clarify the spray openings 27c.
  • All Embodiments of the perforated disks 21 have in common that they have at least one passage opening 27b in the upper one Sheet layer 135 and at least one spray opening 27c, here four spray orifices 27c in the lower sheet layer 135 have, the passage openings 27b each as large with regard to their width or width that all Spray openings 27c are completely flowed over. In order to is meant that none of the passage openings 27b delimiting walls covers the spray openings 27c.
  • the passage opening 27b circular (FIG. 14) or rectangular (FIG. 15) executed, from the spray openings 27c circular cross sections ( Figures 14 and 15).
  • These perforated disks 21 are also particularly suitable for Arrangement of two spray orifices 27c in a larger one Distance to two further spray openings 27c for one Zweistrahlabspritzung.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP03016782A 1997-06-07 1998-03-17 Soupape d'injection, en particulier soupape d'injection de carburant Expired - Lifetime EP1355061B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19724075 1997-06-07
DE19724075A DE19724075A1 (de) 1997-06-07 1997-06-07 Verfahren zur Herstellung einer Lochscheibe für ein Einspritzventil und Lochscheibe für ein Einspritzventil und Einspritzventil
EP98924016A EP0917624B1 (fr) 1997-06-07 1998-03-17 Procede pour realiser un disque ajoure destine a un injecteur

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP98924016A Division EP0917624B1 (fr) 1997-06-07 1998-03-17 Procede pour realiser un disque ajoure destine a un injecteur

Publications (2)

Publication Number Publication Date
EP1355061A1 true EP1355061A1 (fr) 2003-10-22
EP1355061B1 EP1355061B1 (fr) 2005-06-22

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP98924016A Expired - Lifetime EP0917624B1 (fr) 1997-06-07 1998-03-17 Procede pour realiser un disque ajoure destine a un injecteur
EP03016782A Expired - Lifetime EP1355061B1 (fr) 1997-06-07 1998-03-17 Soupape d'injection, en particulier soupape d'injection de carburant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98924016A Expired - Lifetime EP0917624B1 (fr) 1997-06-07 1998-03-17 Procede pour realiser un disque ajoure destine a un injecteur

Country Status (9)

Country Link
US (1) US6168099B1 (fr)
EP (2) EP0917624B1 (fr)
JP (1) JP2000517025A (fr)
KR (2) KR100643558B1 (fr)
CN (1) CN1151336C (fr)
AU (1) AU735559B2 (fr)
BR (1) BR9806040A (fr)
DE (3) DE19724075A1 (fr)
WO (1) WO1998057060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018001729A1 (fr) * 2016-06-27 2018-01-04 Robert Bosch Gmbh Procédé de fabrication d'un injecteur destiné à l'injection de carburant

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DE19856920A1 (de) * 1998-12-10 2000-06-15 Bosch Gmbh Robert Brennstoffeinspritzventil
US6330981B1 (en) 1999-03-01 2001-12-18 Siemens Automotive Corporation Fuel injector with turbulence generator for fuel orifice
JP2000314360A (ja) * 1999-04-30 2000-11-14 Aisan Ind Co Ltd 燃料噴射弁
DE19947780A1 (de) 1999-10-02 2001-04-12 Bosch Gmbh Robert Verfahren zum Einstellen der Strömungsmenge an einem Brennstoffeinspritzventil
US6357677B1 (en) * 1999-10-13 2002-03-19 Siemens Automotive Corporation Fuel injection valve with multiple nozzle plates
DE60127809T2 (de) 2000-02-02 2007-12-27 Siemens Automotive Corp., Auburn Hills Kombinierte filter und versteller für ein einspritzventil
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JP2002039036A (ja) 2000-07-24 2002-02-06 Mitsubishi Electric Corp 燃料噴射弁
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US20050248060A1 (en) * 2002-06-28 2005-11-10 3M Innovative Properties Company Manufacture of valve stems
DE10314672B4 (de) * 2003-04-01 2016-12-22 Robert Bosch Gmbh Verfahren zur Herstellung einer Lochscheibe
DE10314670A1 (de) * 2003-04-01 2004-10-14 Robert Bosch Gmbh Verfahren zur Herstellung und Befestigung einer Lochscheibe
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US20060200988A1 (en) * 2005-03-11 2006-09-14 Siemens Vdo Automotive Corporation Sandwich orifice disc
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DE102010029298A1 (de) * 2010-05-26 2011-12-01 Robert Bosch Gmbh Ventilanordnung zur Dosierung eines fluiden Mediums in einen Abgasstrang einer Brennkraftmaschine
JP5295337B2 (ja) 2011-10-19 2013-09-18 三菱電機株式会社 流体噴射弁による噴霧生成方法、流体噴射弁、及び噴霧生成装置
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CN110546375B (zh) * 2017-04-26 2021-11-23 三菱电机株式会社 燃料喷射阀
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CN1151336C (zh) 2004-05-26
WO1998057060A1 (fr) 1998-12-17
US6168099B1 (en) 2001-01-02
KR20050090470A (ko) 2005-09-13
DE59812885D1 (de) 2005-07-28
EP0917624A1 (fr) 1999-05-26
AU735559B2 (en) 2001-07-12
EP0917624B1 (fr) 2004-01-28
KR20000068027A (ko) 2000-11-25
KR100643558B1 (ko) 2006-11-13
DE19724075A1 (de) 1998-12-10
BR9806040A (pt) 1999-08-24
DE59810659D1 (de) 2004-03-04
CN1228139A (zh) 1999-09-08
KR100570911B1 (ko) 2006-04-14
JP2000517025A (ja) 2000-12-19
EP1355061B1 (fr) 2005-06-22
AU7637198A (en) 1998-12-30

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