EP1877660B1 - Soupape d'injection de carburant et son procede de montage - Google Patents

Soupape d'injection de carburant et son procede de montage Download PDF

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Publication number
EP1877660B1
EP1877660B1 EP06708657A EP06708657A EP1877660B1 EP 1877660 B1 EP1877660 B1 EP 1877660B1 EP 06708657 A EP06708657 A EP 06708657A EP 06708657 A EP06708657 A EP 06708657A EP 1877660 B1 EP1877660 B1 EP 1877660B1
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EP
European Patent Office
Prior art keywords
fuel injection
injection valve
inflow pipe
nozzle body
spacer
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.)
Expired - Fee Related
Application number
EP06708657A
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German (de)
English (en)
Other versions
EP1877660A1 (fr
Inventor
Helmut Schwegler
Ferdinand Reiter
Franz Thoemmes
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
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Filing date
Publication date
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Publication of EP1877660A1 publication Critical patent/EP1877660A1/fr
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Publication of EP1877660B1 publication Critical patent/EP1877660B1/fr
Expired - Fee Related 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
    • 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
    • F02M61/166—Selection of particular materials
    • 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

Definitions

  • the invention relates to a fuel injection valve according to the preamble of claim 1 and a method for assembling such a fuel injection valve according to claim 15.
  • a fuel injection valve which is particularly suitable for fuel injection systems of internal combustion engines. It comprises a housing, an intake manifold for connection to a fuel supply line, a valve seat carrier arranged downstream of the inlet nozzle, a valve seat body attached to the valve seat carrier with a valve seat surface and a valve closing body which is movable between a closed position adjoining the valve seat surface and an open position raised therefrom.
  • the inlet nozzle and the valve seat carrier each consist of a sheet metal part, which are deformed by deformation stress and connected together to form a housing.
  • the fuel injection valve according to the invention with the characterizing features of claim 1 and the inventive method with the features of claim 14 have the advantage that the fuel injector consists of a few assemblies that can be either pre-assembled or easily manufactured and assembled by an inlet nozzle and a nozzle body are designed as deep-drawn parts, which are fixed to a magnetic circuit element.
  • the nozzle body is placed on the outer pole of the magnetic circuit element and fixed by means of a weld on the outer pole.
  • thermoformed components can be varied as desired in their shape and design to allow optimum adaptation to the installation conditions of the fuel injection valve.
  • a further advantage is that the deep-drawn components are simple and inexpensive to produce.
  • Another advantage is that the adjustment of the dynamic flow before final assembly of the fuel injection valve is possible by the simple structure.
  • the fuel injection valve 1 according to Fig. 1 is suitable for fuel injection systems of mixture-compression, spark-ignited internal combustion engines and has a nozzle body 2.
  • the nozzle body 2 forms with its free end the discharge-side end 3 of the fuel injection valve 1.
  • a valve seat body 4 has a conical valve seat surface 5, which faces away from the discharge end 3 and to which a discharge 6 connects to the discharge end 3.
  • the valve seat surface 5 cooperates with a valve closing body 7, which in the present embodiment is at least partially spherical in shape in its region adjacent to the valve seat surface 5 and forms a hollow valve needle 8 with an integrally formed shaft 7a.
  • the valve seat body 7 is arranged and fixed in a sleeve-shaped valve seat carrier 9.
  • valve seat carrier 9 is remote from the discharge-side end 3 at its End connected by a mechanical connection 11 with a sleeve-shaped inlet nozzle 12, with which it forms a sleeve-shaped housing 13 in which extends axially through a flow passage 14 for the fuel.
  • the round in cross-section valve seat carrier 9 is stepped in its upstream end portion in diameter, resulting in the downstream end a substantially hollow cylindrical peripheral wall portion 15, to which upstream preferably a right angle to the longitudinal central axis 16 of the housing 13 arranged step wall portion 17 and a second hollow cylindrical Connect wall section 18.
  • a e.g. formed by an O-ring 19 a ring seal 19 for sealing the valve seat carrier 9 in a receiving receiving opening.
  • two axially spaced apart from one another and the O-ring 19a between them receiving flanges 21, 22 are integrally formed on the valve seat carrier 9, of which the upstream flange 22 is formed by a preferably folded outer bead.
  • the inlet nozzle 12 also has the form of a cylindrical or stepped cylindrical sleeve, which in the present embodiment in its upstream end region in its cross-sectional size for receiving a filter 23 is stepped extended.
  • a flange 24 is formed, the outer diameter of which corresponds approximately to the outer diameter of the second peripheral wall portion 18 of the valve seat carrier 9.
  • a ring seal 25 preferably a surrounding the inlet nozzle 12 O-ring 25a for sealing a Jerusalemsteckbaren on the 6 inlet nozzle 12, fuel line, not shown.
  • the inlet nozzle 12 has two axial distance from one another and the sealing ring 25a between receiving, integrally formed flanges 26, 27, of which the upstream flange 26 is formed by an outer bead, which may optionally be folded.
  • the mechanical connection 11 between the valve seat carrier 9 and the inlet nozzle 12 is of form-fitting effective type.
  • a plurality of connecting pins 29 may be arranged on one of these parts, which engage positively in the other part or engage over it.
  • the valve needle 8 is formed with the valve closing body 7 in the form of a one-piece cylindrical or stepped cylindrical sleeve with a downstream closed end. It has in its longitudinal direction one behind the other three in cross-section differently sized peripheral wall portions 32, 33, 34, the upstream progressively increase in cross-section, preferably with conical transition regions 35, 36.
  • the central peripheral wall portion 33 has an inner flange 37 formed by an inner bead is.
  • the middle and the upstream peripheral wall portions 33, 34 have a hollow cylindrical cross-sectional shape.
  • the inner flange 37 serves as a shoulder surface and abutment for an upstream of it arranged return spring 38 in the form of a helical compression spring which is formed in its upstream end portion relative to the inner diameter of the tapered here in cross-section peripheral wall 12a of the inlet nozzle 12 with a diameter oversize and in the hollow cylindrical Peripheral wall 12 a is pressed.
  • the resulting from the size of the excess press fit for the Return spring 38 in the peripheral wall 12a is so strong that in the operation of the fuel injector 1 accidental slippage of the pressed-spring end is excluded under the resulting stresses in operation, mounting the return spring 38 by insertion into the hollow cylindrical peripheral wall 12a with a certain axial press-fit force is possible.
  • the opening of the fuel injection valve 1 is effected by the axial movement of the valve needle 8 against the spring force of the return spring 38th
  • the valve seat surface 5 is formed by the shoulder surface of a recess 39 which is in sliding contact with the lateral surface of the valve closing body 7 in a longitudinally extending from the valve seat surface 5 longitudinal section a, upstream of which is divergent and at an axial distance in front of the transition region 35 of the valve needle 8 ends.
  • the longitudinal section a forms an axial guide section 41 for the valve closing body 7.
  • the radial equatorial region of the part-spherical valve closing body 7 is correspondingly polygonal, e.g. hexagonal, formed.
  • annular bobbin 43 is preferably disposed of plastic, in which a magnetic coil 44 is embedded , which allows electromagnetic actuation of the valve needle 8.
  • the bobbin 43 consists of a annular base portion 45 which abuts the flange 24 and the peripheral wall portion 18.
  • a hollow cylindrical inner peripheral wall 46 having a flange 47 defining an annular space 48 in which the magnetic coil 44 is embedded and covered by a sleeve 49 of electrically non-conductive material, in particular plastic.
  • the axial dimension of the bobbin 43 may be sized so that it fills the distance between the flange 24 and the step wall portion 17.
  • 43 ring seals here in each case a sealing ring, are provided on the axial end faces of the bobbin 43.
  • a quadring 52 is arranged on the downstream end face, which sits on an axial annular projection 53 of the bobbin 43.
  • an O-ring 54 is disposed in a receiving annular groove 55 in the upstream end side of the bobbin 43.
  • Formed on the spool 43 laterally is a connecting neck 43a which extends outwardly through a matching upstream opening 18a in the peripheral wall 18 and carries a connector 43b with electrical contact elements 43c connected to the magnetic coil 44.
  • the valve needle 8 is associated with a guide portion 56 which is formed by the bobbin 43.
  • the guide portion 56 is provided between the upstream peripheral wall portion 34 and the base portion 45, at the cylindrical inner peripheral surface preferably reduced in cross section, the cylindrical outer peripheral surface of the peripheral wall portion 34 is in sliding contact.
  • the base portion 45 at the upstream portion of its inner circumference on an extension, whereby a free annular gap 57 is formed for the upstream outer edge of the valve needle 8.
  • the shaft 7 a has a radial distance to the bobbin 43 and the peripheral wall portion 15.
  • the length of the valve needle 8 is so large that upon contact of its valve closing body 7 on the valve seat surface 5, an axial distance b between the valve needle 8 and the flange 24 of the inlet nozzle 12, which corresponds to the valve needle.
  • the valve needle 8 so completely penetrates the magnetic coil 44.
  • the magnetic flux conducting inlet nozzle 12 therefore does not form a core in the sense of known electromagnetically actuated valves, but provides only one housing part, which is thin-walled executable.
  • the valve needle 8 forms the magnetic core of the solenoid 44. A special to be attached to the valve needle 8 anchor body is not required.
  • the valve seat carrier 9, the inlet nozzle 12 and the valve needle 8 are each formed from a sheet metal part of ferromagnetic metal, in particular ferromagnetic steel, which by a yield stress exceeding the yield stress, such as a tensile or compressive stress, its material from a blank or prefabricated part is deformable into its final shape, preferably by deep drawing.
  • the blank or prefabricated part can be z. B. to act a flat board or a piece of pipe.
  • the valve seat carrier 9, inlet nozzle 12 and the valve needle 8 are thus each a one-piece shaped sheet metal part B1, B2, B3 of substantially the same wall thickness, which can be easily and quickly produced by known deformation measures and is characterized by a relatively high strength or Stability is characterized by low weight.
  • the secantial surfaces 7 b can also be molded on the valve closing body 7. However, it is also possible to produce the secantial surfaces 7b by machining.
  • valve seat body 4 For axial fixation of the valve seat body 4 serves a e.g. cup-shaped spray perforated disc 59 preferably made of steel, whose peripheral edge is adapted to the internal cross-sectional size of the valve seat carrier 9 and which is fastened in a preferably axially recessed position at the discharge end on the inner wall, preferably by welding.
  • a e.g. cup-shaped spray perforated disc 59 preferably made of steel, whose peripheral edge is adapted to the internal cross-sectional size of the valve seat carrier 9 and which is fastened in a preferably axially recessed position at the discharge end on the inner wall, preferably by welding.
  • the valve seat body 4 in the axial direction of this is connected to the spray disk 59 by welding.
  • the valve seat part formed from the valve seat body 4 and the spray disk 59 is fixedly connected to the valve seat carrier 9 by welding in the area of the spray disk 59.
  • the annular space 42 delimiting portions of the valve seat support 9, the inlet nozzle 12 and the valve needle 8, in the embodiment of the peripheral wall portion 18, the step wall portion 17, the flange 24 and the shaft 7a of the valve needle 8 form guide elements L1, L2, L3, L4 for the magnetic Magnetic coil 44 flow.
  • the fuel flows axially through the inlet nozzle 12 and the upstream open shaft 7a of the valve needle 8.
  • through holes are arranged in the shell of the shaft 7a, of which Fuel axially further towards the valve seat surface 5 flows.
  • connection of the nozzle body 2 with the inlet nozzle 12 by a clip connection is prone to failure.
  • Fig. 1 shows, the production must The individual components are very accurate and requires a wealth of additional components for sealing and encapsulation of the components of the magnetic circuit.
  • Fig. 2 illustrated by an embodiment of an inventively designed fuel injector 1 to produce the inlet nozzle 12 and the nozzle body 2 as deep-drawn parts, which are mounted with a prefabricated magnetic circuit element 60.
  • Fig. 2 are the same components provided with matching reference numerals. A repetitive description of components already described has been omitted.
  • a magnetic circuit element 60 having a tubular inner pole 63 and an outer pole 65 and an armature 67 guided therein, which is non-positively connected to the valve needle 7a.
  • a housing member 68 as part of the outer pole encapsulates the magnetic circuit element 60.
  • the magnetic circuit element 60 can be prefabricated and is finally provided with the inlet nozzle 12 and the nozzle body 2.
  • the inlet connection 12 z. B. placed on a shoulder of the inner pole 63 and with the tubular inner pole 63 of the magnetic circuit element 60 welded via a weld 64, preferably by laser welding.
  • a spacer 62 through which the sealing ring 25a is held on the inlet nozzle 12 for sealing against a fuel distributor line, not shown, can either be pushed onto the inlet nozzle 12 and mounted together with this, so that the spacer 62 after welding only must be pushed axially into its final position in the outflow direction over the weld 64, or the spacer 62 may be formed in the form of two half-shells, which are mounted after welding around the inlet port 12.
  • the two components inlet nozzle 12 and nozzle body 2 are designed as deep-drawn parts. This advantageously reduces the production costs, since the production by machining techniques can be limited to a few components in the region of the magnetic cradle element 60. -The components also have the advantage of being light and thus not contributing unnecessarily to the total weight.
  • Deep drawing is also a process that allows a wide variety of variations and flexibility in terms of length and connection geometries.
  • Fig. 2 in the region of the nozzle body 2 on the left a further variant shown schematically and designated V, which largely dispenses with the flange 22, which provides for the local fixation of the O-ring 19a, by the diameter of the nozzle body 2 over its axial length except for one circumferential groove 69, in which the O-ring 19a is inserted, remains constant.
  • V schematically and designated V, which largely dispenses with the flange 22, which provides for the local fixation of the O-ring 19a, by the diameter of the nozzle body 2 over its axial length except for one circumferential groove 69, in which the O-ring 19a is inserted, remains constant.
  • This form is even easier to produce and cheaper to manufacture.
  • Another advantage of the deep-drawn inlet nozzle 12 is the ability to set it up by adjusting the bias of the return spring 38 by means of a sleeve 70 only after the adjustment of the dynamic flow rate. This implies a simpler adjustability of the fuel injection valve 1, since the adjustment tools do not need to be threaded through the inlet nozzle 12. The tools needed therefore need not be varied for different settings for different lengths of inlet nozzle, which allows a faster process flow and thus also a cost savings.
  • the invention is not limited to the illustrated embodiment and e.g. also suitable for fuel injectors 1 for use in auto-ignition internal combustion engines.

Claims (17)

  1. Soupape d'injection de carburant (1), notamment soupape d'injection de carburant pour installations d'injection de carburant de moteurs à combustion interne, comprenant une tubulure d'amenée (12) pour le raccordement à une conduite de distributeur de carburant, un corps de buse (2) disposé en aval de la tubulure d'amenée (12) ainsi qu'un élément de circuit magnétique (60), présentant une bobine magnétique (44), un pôle interne (63) et un pôle externe (65, 68), ainsi qu'un induit (67), qui est en liaison par engagement par force avec une aiguille de soupape (7a) de telle sorte que dans lé cas d'une alimentation électrique de la bobine magnétique (44), un corps de fermeture de soupape (7) disposé sur l'aiguille de soupape (7a) se soulève d'une surface de siège de soupape (5), la tubulure d'amenée (12) et le corps de buse (2) étant fabriqués sous forme de composants emboutis et la tubulure d'amenée (12) et le corps de buse (2) étant fixés sur l'élément de circuit magnétique (60),
    caractérisée en ce que
    le corps de buse (2) est posé sur le pôle externe (65) et est fixé au pôle externe (65) au moyen d'un cordon de soudure (66).
  2. Soupape d'injection de carburant selon la revendication 1, caractérisée en ce que la tubulure d'amenée (12) est fixée au pôle interne (63) au moyen d'un cordon de soudure (64).
  3. Soupape d'injection de carburant selon la revendication 1 ou 2,
    caractérisée en ce que les cordons de soudure (64, 66) sont fabriqués par soudage au laser.
  4. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce qu'un diamètre radial du corps de buse (2) est étagé sur sa longueur axiale.
  5. Soupape d'injection de carburant selon la revendication 4,
    caractérisée en ce que le corps de buse (2) présente une première bride (21) et une deuxième bride (22).
  6. Soupape d'injection de carburant selon la revendication 5,
    caractérisée en ce que
    l'on dispose entre les brides (21, 22) un joint d'étanchéité annulaire (19).
  7. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce
    qu'un diamètre radial du corps de buse (2) est constant sur sa longueur axiale à l'exception d'une rainure (69).
  8. Soupape d'injection de carburant selon la revendication 7,
    caractérisée en ce
    qu'un joint d'étanchéité annulaire (19) est disposé dans la rainure (69).
  9. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 8,
    caractérisée en ce que
    la tubulure d'amenée (12) présente une bride (27).
  10. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 9,
    caractérisée en ce que
    l'on dispose un élément d'espacement (62) autour de la tubulure d'amenée (12).
  11. Soupape d'injection de carburant selon les revendications 9 et 10,
    caractérisée en ce que
    l'on dispose un joint d'étanchéité annulaire (25) entre la bride (27) et l'élément d'espacement (62).
  12. Soupape d'injection de carburant selon la revendication 10 ou 11,
    caractérisée en ce que
    l'élément d'espacement (62) est réalisé d'une seule pièce et est disposé de manière déplaçable axialement sur la tubulure d'amenée (12).
  13. Soupape d'injection de carburant selon la revendication 10 ou 11,
    caractérisée en ce que
    l'élément d'espacement (62) est réalisé sous forme de deux demi-coques.
  14. Procédé de montage d'une soupape d'injection de carburant (1), notamment d'une soupape d'injection de carburant pour installations d'injection de carburant de moteurs à combustion interne, comprenant une tubulure d'amenée (12) pour le raccordement à une conduite de distributeur de carburant, un corps de buse (2) disposé en aval de la tubulure d'amenée (12) ainsi qu'un élément de circuit magnétique (60), présentant une bobine magnétique (44), un pôle interne (63) et un pôle externe (65), ainsi qu'un induit (67), qui est en liaison par engagement par force avec une aiguille de soupape (7a) de telle sorte que dans le cas d'une alimentation électrique de la bobine magnétique (44), un corps de fermeture de soupape (7) disposé sur l'aiguille de soupape (7a) se soulève d'une surface de siège de soupape (5), la tubulure d'amenée (12) et le corps de buse (2) étant fabriqués sous forme de composants emboutis et la tubulure d'amenée (12) et le corps de buse (2) étant fixés sur l'élément de circuit magnétique (60),
    caractérisé en ce que
    le procédé comprend les étapes de procédé suivantes :
    - prémontage de l'élément de circuit magnétique (60),
    - pose du corps de buse (2) et soudage au pôle externe (65),
    - ajustement du débit dynamique de la soupape d'injection de carburant (1) par ajustement d'une précontrainte d'un ressort de rappel (38),
    - prémontage d'un élément d'espacement (62) sur la tubulure d'amenée (12) et
    - pose de la tubulure d'amenée (12) et soudage au pôle interne (63).
  15. Procédé selon la revendication 14,
    caractérisé en ce que
    l'étape de procédé de prémontage de l'élément d'espacement (62) peut être intervertie dans la séquence.
  16. Procédé selon la revendication 14 ou 15,
    caractérisé en ce que
    l'étape de procédé de prémontage de l'élément d'espacement (62) comprend la poussée de l'élément d'espacement (62) sur la tubulure d'amenée (12) avant le soudage de la tubulure d'amenée (12) sur le pôle interne (63) ainsi qu'un déplacement axial de l'élément d'espacement (62) dans une direction d'écoulement par-dessus un cordon de soudure (64) reliant la tubulure d'amenée (12) au pôle interne (63).
  17. Procédé selon la revendication 14 ou 15,
    caractérisé en ce que
    l'étape de procédé de prémontage de l'élément d'espacement (62) comprend un montage de l'élément d'espacement (62) constitué de deux demi-coques sur la tubulure d'amenée (12) après le soudage de la tubulure d'amenée (12) au pôle interne (63).
EP06708657A 2005-04-28 2006-03-07 Soupape d'injection de carburant et son procede de montage Expired - Fee Related EP1877660B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005019837A DE102005019837A1 (de) 2005-04-28 2005-04-28 Brennstoffeinspritzventil und Verfahren zu dessen Montage
PCT/EP2006/060502 WO2006114348A1 (fr) 2005-04-28 2006-03-07 Soupape d'injection de carburant et son procede de montage

Publications (2)

Publication Number Publication Date
EP1877660A1 EP1877660A1 (fr) 2008-01-16
EP1877660B1 true EP1877660B1 (fr) 2010-01-06

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ID=36465782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06708657A Expired - Fee Related EP1877660B1 (fr) 2005-04-28 2006-03-07 Soupape d'injection de carburant et son procede de montage

Country Status (8)

Country Link
US (1) US20090184184A1 (fr)
EP (1) EP1877660B1 (fr)
JP (1) JP4718600B2 (fr)
CN (1) CN101166899B (fr)
AT (1) ATE454551T1 (fr)
BR (1) BRPI0606491A2 (fr)
DE (2) DE102005019837A1 (fr)
WO (1) WO2006114348A1 (fr)

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US10539057B2 (en) * 2017-09-14 2020-01-21 Vitesco Technologies USA, LLC Injector for reductant delivery unit having reduced fluid volume
US10947880B2 (en) * 2018-02-01 2021-03-16 Continental Powertrain USA, LLC Injector for reductant delivery unit having fluid volume reduction assembly
CN108561251B (zh) * 2018-03-07 2020-09-08 宁波赛驰动力技术有限公司 喷油器的装配方法
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DE19632196B4 (de) * 1996-08-09 2004-11-04 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil
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JP3734702B2 (ja) * 2000-10-17 2006-01-11 株式会社日立製作所 電磁式燃料噴射弁
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US6904668B2 (en) * 2001-03-30 2005-06-14 Siemens Vdo Automotive Corp. Method of manufacturing a modular fuel injector
DE10130205A1 (de) * 2001-06-22 2003-01-02 Bosch Gmbh Robert Brennstoffeinspritzventil
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Also Published As

Publication number Publication date
US20090184184A1 (en) 2009-07-23
CN101166899A (zh) 2008-04-23
EP1877660A1 (fr) 2008-01-16
JP2008539358A (ja) 2008-11-13
BRPI0606491A2 (pt) 2009-06-30
ATE454551T1 (de) 2010-01-15
CN101166899B (zh) 2012-07-04
WO2006114348A1 (fr) 2006-11-02
DE102005019837A1 (de) 2006-11-02
JP4718600B2 (ja) 2011-07-06
DE502006005850D1 (de) 2010-02-25

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