EP0718490A2 - Soupape d'injection de combustible - Google Patents

Soupape d'injection de combustible Download PDF

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Publication number
EP0718490A2
EP0718490A2 EP95114024A EP95114024A EP0718490A2 EP 0718490 A2 EP0718490 A2 EP 0718490A2 EP 95114024 A EP95114024 A EP 95114024A EP 95114024 A EP95114024 A EP 95114024A EP 0718490 A2 EP0718490 A2 EP 0718490A2
Authority
EP
European Patent Office
Prior art keywords
carrier
valve seat
section
perforated
seat body
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.)
Withdrawn
Application number
EP95114024A
Other languages
German (de)
English (en)
Other versions
EP0718490A3 (fr
Inventor
Assadollah Dipl.-Ing. Awarzamani
Norbert Dipl.-Ing. Belzner (Fh)
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 EP0718490A2 publication Critical patent/EP0718490A2/fr
Publication of EP0718490A3 publication Critical patent/EP0718490A3/fr
Withdrawn legal-status Critical Current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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates

Definitions

  • the invention relates to a fuel injector according to the preamble of the main claim.
  • a fuel injector is already known from DE-OS 38 41 142, in which a perforated disk is fastened to a valve seat body by means of a circumferential weld seam.
  • the weld seam must be far away from the spray openings to avoid deformation of the thin perforated disc.
  • the relatively thick perforated disk is cup-shaped in order to prevent the perforated disk from lifting off due to the prevailing fuel pressure, as a result of which the spray pattern of the sprayed fuel changes in an undesired manner.
  • the effort for the manufacture and assembly of the perforated disc is very large.
  • a fuel injector is already known from DE-OS 41 23 692, in which a thinner perforated disk is used, which in turn is supported by a thicker support disk downstream of the perforated disk, which has a central through opening.
  • the support disc is pot-shaped and together with the Perforated disc welded to the valve seat body by means of a circumferential weld seam.
  • the supporting disk mainly has the function of improving the stability of the perforated disk, and it is firmly connected to a perforated disk.
  • the fuel injector according to the invention with the characterizing features of the main claim has the advantage that a very good variation in the use of perforated disks with different dimensions, in particular different thickness and diameter, is possible in a simple and inexpensive manner, whereby the flow rates of the perforated disks with very little effort can be easily varied and different beam patterns can also be generated.
  • a perforated disk carrier is provided downstream of a valve seat surface and has a carrier section shaped in such a way that a plurality of perforated disks with different dimensions can be inserted into it in a simple form.
  • the perforated disk carrier in a pot-shaped manner and to connect its circumferential retaining edge in a tight and firm manner with a valve seat carrier in its axial position after the setting of the valve seat body, so that this makes it possible to adjust the valve stroke. It is also advantageous to design the bottom part of the perforated disc carrier in a cup-shaped manner in order to be precisely in this cup-shaped support section to receive a perforated disc.
  • this support section is either frustoconical or truncated pyramid-shaped or with a plurality of axially successive step sections.
  • perforated disc carrier By using a perforated disc carrier, perforated discs with comparatively small dimensions can be used, so that material for the perforated discs can be saved in an advantageous manner.
  • FIG. 1 shows a partially illustrated injection valve
  • FIG. 2 shows a perforated disk carrier with a conical carrier section
  • FIG. 3 shows a perforated disk carrier with stepped carrier section
  • FIG. 4 perforated disks for the perforated disk carrier according to FIG. 2
  • FIG. 5 perforated disks for the perforated disk carrier according to FIG. 3
  • FIG. 6 shows a plan view a perforated disc carrier for square perforated discs
  • Figure 9 is a perforated disc with areas of different thickness.
  • the injection valve has a tubular valve seat support 1, in which a longitudinal opening 3 is formed concentrically with a valve longitudinal axis 2.
  • a longitudinal opening 3 is formed concentrically with a valve longitudinal axis 2.
  • the flats 8 on the valve closing body 7 allow fuel to flow in the direction of a valve seat surface 9.
  • the injection valve is actuated in a known manner, for example electromagnetically.
  • An indicated electromagnetic circuit with a magnet coil 10, an armature 11 and a core 12 is used for the axial movement of the valve needle 5 and thus for opening against the spring force of a return spring, not shown, or for closing the injection valve.
  • the armature 11 is connected to the Valve closing body 7 facing away from the valve needle 5 by z. B. a weld seam connected by a laser and aligned with the core 12.
  • a guide opening 15 of a valve seat body 16 is used to guide the valve closing body 7 during the axial movement.
  • the cylindrical valve seat body 16 is arranged in the longitudinal opening 3 concentric to the longitudinal axis 2 of the valve.
  • the circumference of the valve seat body 16 has a slightly smaller diameter than the diameter of the longitudinal opening 3 of the valve seat carrier 1.
  • valve seat body 16 On its one lower end face 17 facing away from the valve closing body 7, the valve seat body 16 is provided with an outer ring portion 19 of a bottom part 20 of an inventive one, of which Thick disc-shaped perforated disc carrier 21 concentrically and firmly connected, so that the bottom part 20 rests with its upper end face 22 in the region of the ring portion 19 on the lower end face 17 of the valve seat body 16.
  • valve seat body 16 and z. B. cup-shaped perforated disc carrier 21 is carried out, for example, by a circumferential and tight, by means of a laser-formed first weld 23, which necessarily extends annularly on the ring portion 19.
  • the base part 20 has a cup-shaped, lower-lying support section 25, which extends at an axial distance from the lower end face 17 of the valve seat body 16 and into which a perforated disk 26 is inserted.
  • a circumferential retaining edge 28 which extends in the axial direction away from the valve seat body 16 and is conically bent outwards to the end thereof.
  • the holding edge 28 exerts a radial spring action on the wall of the longitudinal opening 3. This prevents chip formation on the valve seat part and on the longitudinal opening 3 when the valve seat part consisting of valve seat body 16, perforated disk 26 and perforated disk carrier 21 is inserted into the longitudinal opening 3 of the valve seat carrier 1.
  • the holding edge 28 of the perforated disc carrier 21 is connected at its free end to the wall of the longitudinal opening 3, for example by a circumferential and tight second weld seam 30.
  • valve seat body 16 and perforated disk carrier 21 and of perforated disk carrier 21 and valve seat carrier 1 is required so that the medium used, for example a fuel, does not pass between the longitudinal opening 3 of the valve seat carrier 1 and the circumference of the valve seat body 16 or between the longitudinal opening 3 of the valve seat carrier 1 and the holding edge 28 of the perforated disc carrier 21 can flow directly into an intake line of the internal combustion engine.
  • medium used for example a fuel
  • the insertion depth of the valve seat part consisting of valve seat body 16, perforated disk 26 and perforated disk carrier 21 into the longitudinal opening 3 determines the size of the stroke of the valve needle 5, since the one end position of the valve needle 5 when the solenoid 10 is not excited due to the application of the Valve closing body 7 is fixed to the valve seat surface 9 of the valve seat body 16.
  • the other end position of the valve needle 5 is determined when the solenoid 10 is excited, for example by the armature 11 resting on the core 12. The path between these two end positions of the valve needle 5 thus represents the stroke.
  • the spherical valve closing body 7 interacts with the valve seat surface 9 of the valve seat body 16 which tapers in the shape of a truncated cone, which is formed in the axial direction between the guide opening 15 and the lower end face 17 of the valve seat body 16.
  • a protective cap 32 is arranged on the circumference of the valve seat support 1 at its downstream end facing away from the solenoid 10 and is connected to the valve seat support 1 by means of, for example, a snap-in connection.
  • a sealing ring 33 serves to seal between the circumference of the injection valve and a valve receptacle, not shown, for example the intake line of the internal combustion engine.
  • FIGS. 2 and 3 show two exemplary embodiments of the perforated disk carrier 21 according to the invention together with the valve seat body 16 in the valve seat carrier 1, the position of the components relative to one another and the shape of the perforated disk carrier 21 mainly being explained, which is why the perforated disks 26 and the weld seams 23, 30 is dispensed with in the figures.
  • the cup-shaped carrier section 25 of the base part 20 is largely conical or frustoconical.
  • the base part 20 does not extend further radially on the lower end face 17 of the valve seat body 16, but also with an axial component, so that there is a frustoconical taper 34 of the support section 25 in the direction away from the valve seat surface 9.
  • the frusto-conical taper 34 of the carrier section 25 ends at an axial distance of approximately 0.2 to 0.3 mm from the end face 17.
  • This conical taper 34 of the carrier section 25 is then joined to the longitudinal axis of the valve again by a flat, radially running, parallel to the ring section 19 and perpendicular to the longitudinal axis 2 of the bottom section 35, in which, for example, a circular, elliptical or square passage opening 36 is introduced in the center.
  • the fuel sprayed out of the perforated disk 26 to be metered ultimately emerges through this through opening 36.
  • the perforated disk carrier 21 in FIG. 3 differs from that shown in FIG. 2 only in the design of the carrier section 25.
  • the taper 34 of the carrier section 25 is not conical, but rather step-like.
  • the individual steps 37 of the support section 25 are designed, for example, in such a way that the respective circular step sections regularly decrease in diameter from the end face 17 to the bottom section 35. This means that both the axial extent of each step 37 and the extent of the reduction in diameter from one step 37 to the next step 37 should be constant.
  • three ( Figure 3) or four steps 37 are provided in the carrier section 25; however, a different number of stages 37 can be implemented at any time. In a training of the support section 25 with four stages 37 z.
  • each the axial distances of each step 37 to the end face 17 of the valve seat body 16 are meant.
  • four perforated disks 26 of different sizes can consequently be used in the carrier section 25 which tends to be cup-shaped despite the stages 37.
  • a through opening 36 is again provided in the bottom section 35 of the support section 25.
  • FIG. 4 illustrates the shape of the perforated disks 26, which are particularly suitable for use with perforated disk carriers 21 according to FIGS. 1 and 2.
  • the perforated disks 26 also have a conical peripheral surface 39 as an outer radial boundary, which has the same inclination as the frustoconical taper 34 of the perforated disk carrier 21.
  • the peripheral surfaces 39 of the perforated disks 26 lie completely against the conical surface of the taper 34.
  • an upper end face 40 of the perforated disk 26 facing the valve seat surface 9 has such a large diameter as the largest free diameter of the carrier section 25 surrounded by the ring section 19 directly on the end face 17 of the valve seat body 16, so that the perforated disk 26 also its end face 40 always abuts the end face 17.
  • the various perforated disks 26 which can be used in the carrier sections 25 of the perforated disk carrier 21 consequently differ in their axial thickness d and thus also in the size of the conical peripheral surface 39 and in their diameter of the lower end face 41 opposite the upper end face 40.
  • Corresponding to the axial distance from Bottom section 35 to the end face 17 can perforated disks 26 z.
  • the four spray orifices 27, for example, are located e.g. B. symmetrical about the valve longitudinal axis 2 in Distributed shape of corner points of a square and thus have the same distance to each other and to the valve longitudinal axis 2.
  • the perforated disks 26 shown in FIG. 5 are particularly suitable for use in perforated disk carriers 21 with a stepped carrier section 25, as shown in FIG. 3. These perforated disks 26 in turn have dimensions such that they always rest with their upper end face 40 on the end face 17 of the valve seat body 16 in the installed state. With each step 37 located further downstream in the perforated disk carrier 21, the diameter of the insertable perforated disk 26 is reduced, while the thickness d of the perforated disks 26 increases with each step 37 in accordance with the axial distances of the steps 37 from the end face 17.
  • Thicknesses d of perforated disks 26 of 0.075 mm to 0.3 mm are also conceivable in this exemplary embodiment; however, according to the specified gradations in the perforated disk carrier 21.
  • the distance between the first step 37 and the end face 17 is, for example, 0.1 mm, a perforated disk 26 with a thickness d of z. B. 0.105 mm or 0.11 mm.
  • the circumferential surfaces 39 run parallel to the longitudinal valve axis 2. The individual perforated disks 26 therefore differ in their axial thickness d and their diameter.
  • FIG. 6 shows a perforated disk carrier 21 in plan view, which differs from the ones shown so far in that it has square, especially also square perforated disks 26 can be used.
  • the ring section 19 Due to the square-shaped carrier section 25, the ring section 19 is no longer circular, but is characterized on the outside by a circular and on the inside by a square-shaped boundary. However, it fulfills the same functions as hitherto, since its tight fit on the end face 17 of the valve seat body 16 enables the tight weld seam 23 to be applied in a ring shape.
  • the carrier sections 25 can also be designed to accommodate square perforated disks 26.
  • a truncated pyramid-shaped taper (not shown) can now be provided, while corresponding to the circular steps 37, square steps 37 (FIG. 6) are now implemented.
  • the square-shaped perforated disks 26 are varied analogously to the possibilities described with the circular perforated disks 26 which are shown in FIGS. 4 and 5.
  • the circular through opening 36 shown in FIG. 6 can also have a square cross section.
  • FIG. 7 shows a perforated disk 26 on which means for unambiguous Position fixation and anti-rotation are provided. Two possibilities are indicated in the same figure on the perforated disk 26.
  • the perforated disk 26 has a notch-like groove 42, in which an axially bead-like elevation of the support section 25 can engage, while on the left side of the perforated disk 26, as another variant, a z. B. axially extending elevation 43 is provided, which can penetrate into a groove of the support portion 25.
  • d is understood to mean the thickness of the perforated disk 26 at least in the area of the clamping in the step section of the support section 25 and d' represents the thickness of the perforated disk 26 in the region of the spray openings 27.
  • the carrier section 25 in the base part 20 of the perforated disc carrier 21 is produced, for example, by shaping the frustoconical or truncated pyramid-shaped taper 34 or the step structure 37 by one or more embossing processes, the perforated disc carrier 21 having to be clamped in a corresponding tool for this purpose. With the same tool z. B. the through opening 36 can be introduced by means of a punch.
  • the perforated disk carrier 21 is only fixed to the valve seat body 16 with the weld seam 23 when the perforated disk 26 selected in accordance with the requirements is inserted in the cup-shaped carrier section 25 of the perforated disk carrier 21. There is therefore no fixed connection between valve seat body 16 and perforated disk 26.
EP95114024A 1994-12-23 1995-09-07 Soupape d'injection de combustible Withdrawn EP0718490A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446241A DE4446241A1 (de) 1994-12-23 1994-12-23 Brennstoffeinspritzventil
DE4446241 1994-12-23

Publications (2)

Publication Number Publication Date
EP0718490A2 true EP0718490A2 (fr) 1996-06-26
EP0718490A3 EP0718490A3 (fr) 1997-10-01

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ID=6536878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114024A Withdrawn EP0718490A3 (fr) 1994-12-23 1995-09-07 Soupape d'injection de combustible

Country Status (5)

Country Link
US (1) US5718387A (fr)
EP (1) EP0718490A3 (fr)
JP (1) JP3811206B2 (fr)
BR (1) BR9505987A (fr)
DE (1) DE4446241A1 (fr)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
DE19636396A1 (de) * 1996-09-07 1998-03-12 Bosch Gmbh Robert Brennstoffeinspritzventil
WO2006096174A1 (fr) * 2005-03-07 2006-09-14 Siemens Vdo Automotive Corporation Combinaison de guides d’abaissement de siege
US7334746B2 (en) 2004-03-08 2008-02-26 Continental Automotive Systems Us, Inc. Seat-lower guide combination
WO2015086536A1 (fr) * 2013-12-13 2015-06-18 Continental Automotive Gmbh Tête de buse et injecteur de fluide
CN107842453A (zh) * 2016-09-20 2018-03-27 罗伯特·博世有限公司 用于进气口燃料喷射器的燃料喷射模块

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DE19522284B4 (de) * 1995-06-20 2007-05-10 Robert Bosch Gmbh Brennstoffeinspritzventil
DE19653832A1 (de) * 1996-12-21 1998-06-25 Bosch Gmbh Robert Ventil mit kombiniertem Ventilsitzkörper und Spritzlochscheibe
US6047907A (en) 1997-12-23 2000-04-11 Siemens Automotive Corporation Ball valve fuel injector
DE19822896A1 (de) 1998-05-22 1999-11-25 Bosch Gmbh Robert Brennstoffeinspritzventil
US20010002680A1 (en) 1999-01-19 2001-06-07 Philip A. Kummer Modular two part fuel injector
US6676044B2 (en) 2000-04-07 2004-01-13 Siemens Automotive Corporation Modular fuel injector and method of assembling the modular fuel injector
US6481646B1 (en) 2000-09-18 2002-11-19 Siemens Automotive Corporation Solenoid actuated fuel injector
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US6499677B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6811091B2 (en) 2000-12-29 2004-11-02 Siemens Automotive Corporation Modular fuel injector having an integral filter and dynamic adjustment assembly
US6533188B1 (en) 2000-12-29 2003-03-18 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and dynamic adjustment assembly
US6523760B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
US6698664B2 (en) 2000-12-29 2004-03-02 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and dynamic adjustment assembly
US6607143B2 (en) 2000-12-29 2003-08-19 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a lift set sleeve
US6523761B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a lift set sleeve
US6568609B2 (en) 2000-12-29 2003-05-27 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having an integral filter and o-ring retainer assembly
US6543707B2 (en) 2000-12-29 2003-04-08 Siemens Automotive Corporation Modular fuel injector having a lift set sleeve
US6511003B2 (en) 2000-12-29 2003-01-28 Siemens Automotive Corporation Modular fuel injector having an integral or interchangeable inlet tube and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6547154B2 (en) 2000-12-29 2003-04-15 Siemens Automotive Corporation Modular fuel injector having a terminal connector interconnecting an electromagnetic actuator with a pre-bent electrical terminal
US6550690B2 (en) 2000-12-29 2003-04-22 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having an integral filter and dynamic adjustment assembly
US6655609B2 (en) * 2000-12-29 2003-12-02 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having an integral filter and o-ring retainer assembly
US6520422B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6565019B2 (en) 2000-12-29 2003-05-20 Seimens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having an integral filter and O-ring retainer assembly
US6708906B2 (en) 2000-12-29 2004-03-23 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and dynamic adjustment assembly
US6508417B2 (en) 2000-12-29 2003-01-21 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a lift set sleeve
US6536681B2 (en) 2000-12-29 2003-03-25 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having an integral filter and O-ring retainer assembly
US6502770B2 (en) 2000-12-29 2003-01-07 Siemens Automotive Corporation Modular fuel injector having a snap-on orifice disk retainer and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6523756B2 (en) 2000-12-29 2003-02-25 Siemens Automotive Corporation Modular fuel injector having a low mass, high efficiency electromagnetic actuator and having a lift set sleeve
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
US6499668B2 (en) 2000-12-29 2002-12-31 Siemens Automotive Corporation Modular fuel injector having a surface treatment on an impact surface of an electromagnetic actuator and having a terminal connector interconnecting an electromagnetic actuator with an electrical terminal
US6676043B2 (en) 2001-03-30 2004-01-13 Siemens Automotive Corporation Methods of setting armature lift in a modular fuel injector
US7093362B2 (en) 2001-03-30 2006-08-22 Siemens Vdo Automotive Corporation Method of connecting components of a modular fuel injector
US6904668B2 (en) 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
US6687997B2 (en) 2001-03-30 2004-02-10 Siemens Automotive Corporation Method of fabricating and testing a modular fuel injector
DE10118164B4 (de) * 2001-04-11 2007-02-08 Robert Bosch Gmbh Brennstoffeinspritzventil
US6877678B2 (en) * 2002-02-14 2005-04-12 Delphi Technologies, Inc. Fuel injector flow director plate retainer
US7021570B2 (en) * 2002-07-29 2006-04-04 Denso Corporation Fuel injection device having injection hole plate
DE10314670A1 (de) * 2003-04-01 2004-10-14 Robert Bosch Gmbh Verfahren zur Herstellung und Befestigung einer Lochscheibe
JP5161853B2 (ja) * 2009-09-29 2013-03-13 三菱電機株式会社 燃料噴射弁
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CA3002057A1 (fr) 2015-10-16 2017-04-20 Nostrum Energy Pte. Ltd. Procede de modification d'un injecteur direct classique et ensemble injecteur modifie

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636396A1 (de) * 1996-09-07 1998-03-12 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19636396B4 (de) * 1996-09-07 2005-03-10 Bosch Gmbh Robert Brennstoffeinspritzventil
US7334746B2 (en) 2004-03-08 2008-02-26 Continental Automotive Systems Us, Inc. Seat-lower guide combination
WO2006096174A1 (fr) * 2005-03-07 2006-09-14 Siemens Vdo Automotive Corporation Combinaison de guides d’abaissement de siege
WO2015086536A1 (fr) * 2013-12-13 2015-06-18 Continental Automotive Gmbh Tête de buse et injecteur de fluide
US10975822B2 (en) 2013-12-13 2021-04-13 Vitesco Technologies GmbH Nozzle head and fluid injection valve
CN107842453A (zh) * 2016-09-20 2018-03-27 罗伯特·博世有限公司 用于进气口燃料喷射器的燃料喷射模块
CN107842453B (zh) * 2016-09-20 2022-04-12 罗伯特·博世有限公司 用于进气口燃料喷射器的燃料喷射模块

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JP3811206B2 (ja) 2006-08-16
US5718387A (en) 1998-02-17
EP0718490A3 (fr) 1997-10-01
JPH08218982A (ja) 1996-08-27
DE4446241A1 (de) 1996-06-27
BR9505987A (pt) 1997-12-23

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