EP1922480B1 - Soupape d'injection de combustible - Google Patents

Soupape d'injection de combustible Download PDF

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Publication number
EP1922480B1
EP1922480B1 EP06778090.8A EP06778090A EP1922480B1 EP 1922480 B1 EP1922480 B1 EP 1922480B1 EP 06778090 A EP06778090 A EP 06778090A EP 1922480 B1 EP1922480 B1 EP 1922480B1
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
injection valve
pressing
sleeve
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
EP06778090.8A
Other languages
German (de)
English (en)
Other versions
EP1922480A1 (fr
Inventor
Martin Maier
Johann Bayer
Christian Suenkel
Wolfgang Koschwitz
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 EP1922480A1 publication Critical patent/EP1922480A1/fr
Application granted granted Critical
Publication of EP1922480B1 publication Critical patent/EP1922480B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit

Definitions

  • the invention relates to a fuel injection valve according to the preamble of the main claim.
  • a fuel injection valve which comprises an electromagnetic actuator with a magnetic coil, with an inner pole and with an outer magnetic circuit component and a movable valve closing body, which cooperates with a valve seat body associated valve seat.
  • the valve seat body and the inner pole are arranged in an inner opening of a thin-walled valve sleeve and the magnet coil and the outer magnetic circuit component on the outer circumference of the valve sleeve.
  • the magnetic circuit component formed in the form of a magnet pot is first pushed onto the valve sleeve, then the valve seat body pressed into the inner opening of the valve sleeve, so that solely by pressing in the valve seat body a firm connection of the valve sleeve and magnetic circuit component is achieved.
  • the inner pole is subsequently fixed by pressing in the valve sleeve.
  • a fuel injection valve for fuel injection systems of internal combustion engines which has a valve longitudinal axis, an excitable actuator for actuating a valve closing body, which cooperates with a provided on a valve seat body valve seat surface, and at least one ejection opening.
  • a low stiffness thin-walled adapter sleeve and a solid nozzle body which receives the valve seat body at its lower end, fixedly connected by pressing.
  • the fixed press connection of these two metallic components of the fuel injection valve is characterized in that the nozzle body has in its pressing region a plurality of circumferential sealing beads. With the help of these sealing beads a sealing surface pressure is achieved in the pressing area.
  • the fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage that it is inexpensive to produce in a particularly simple manner.
  • the fixed press connection of at least two metallic components of the fuel injection valve is characterized in that at least one of the component partners has a structure with grooves in its pressing area and / or the respective pressing area has an inlet rounding in at least one transition to an adjacent component section.
  • press connections between metallic component partners can be produced, which hold securely and reliably over a long period of time while avoiding cold welding and tight.
  • the press connections are very simple and inexpensive to manufacture, since advantageously known and usually necessary separate operations, such as coating or oiling for improved joining of the component partners or a heating of the component partners can be dispensed with for shrinking.
  • the component partners can not stretch or compress due to their rigidity or if they are too soft in their material, such as soft magnetic chromium steels, which are usually used for the most diverse components of an electromagnetically driven fuel injection valve, cold welds are very likely to occur in known compression joints ("Eater") during the joining process of the pressing, but avoided by the inventive measures, in particular on components made of soft magnetic chrome steel become.
  • the inventive measures in particular on components made of soft magnetic chrome steel become.
  • According to the invention can be dispensed with complex accurate and costly processing methods, such as fine grinding or honing, with which the component tolerances could be narrowed and the press connections could be improved with considerable effort.
  • the metal components to be pressed are washed with a cleaner, at least in their respective pressing areas.
  • advantageous lubricant reservoirs are produced in the respective pressing region.
  • the anti-corrosive universal cleaner SurTec® 104 or SurTec® 089 are used as cleaners.
  • FIG. 1 a fuel injection valve according to the prior art
  • FIG. 2 a detailed view of a valve sleeve
  • FIG. 3 a detailed view of a connection pipe
  • FIG. 4 a detailed view of serving as an inner pole core
  • FIG. 5 a detailed view of a valve shell in the form of a magnet pot.
  • FIG. 1 a fuel injection valve according to the prior art explained with its basic components.
  • electromagnetically operable valve in the form of an injection valve for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines has a largely surrounded by a magnetic coil 1, serving as réellepol and partially as a fuel flow largely tubular core 2.
  • the magnetic coil 1 is of an outer, sleeve-shaped and stepped running , z.
  • the magnetic coil 1, the core 2 and the valve shell 5 together form an electrically excitable actuator.
  • solenoid coil 1 While embedded in a bobbin 3 solenoid coil 1 surrounds a valve sleeve 6 from the outside, the core 2 in an inner, concentric with a valve longitudinal axis 10 extending opening 11 of the valve sleeve 6 is introduced.
  • the e.g. Ferritic valve sleeve 6 is stretched long and thin-walled.
  • the opening 11 also serves as a guide opening for a valve needle 14 which is axially movable along the valve longitudinal axis 10.
  • the valve sleeve 6 extends in the axial direction, e.g. over more than half the total axial extent of the fuel injector.
  • valve seat body 15 is further arranged in the opening 11, which is fastened to the valve sleeve 6, for example by means of a weld 8.
  • the valve seat body 15 has a fixed valve seat surface 16 as a valve seat.
  • the valve needle 14 is formed for example by a tubular anchor portion 17, a likewise tubular needle portion 18 and a spherical valve closing body 19, wherein the valve closing body 19 is connected for example by means of a weld fixed to the needle portion 18.
  • a cup-shaped spray perforated disk 21 is arranged, whose bent and circumferentially encircling retaining edge 20 is directed against the flow direction upwards.
  • valve seat body 15 and spray disk 21 The solid connection of the valve seat body 15 and spray disk 21 is z. B. realized by a circumferential tight weld.
  • z. B. realized by a circumferential tight weld.
  • one or more transverse openings 22 are provided, so that the armature portion 17 in an inner longitudinal bore 23 by flowing fuel to the outside and can flow on the valve closing body 19, for example, at flats 24 to the valve seat surface 16.
  • the actuation of the injection valve takes place in a known manner electromagnetically.
  • the electromagnetic circuit with the solenoid coil 1, the inner core 2, the outer valve shell 5 and the anchor portion 17 is used Anchor portion 17 is aligned with the valve closing body 19 facing away from the end of the core 2.
  • the spherical valve closing body 19 cooperates with the valve seat surface 16 of the valve seat body 15, which tapers in the direction of the flow in the direction of flow and which is formed in the axial direction downstream of a guide opening in the valve seat body 15.
  • the spray perforated disc 21 has at least one, for example, four ejection openings 27 formed by erosion, laser drilling or punching.
  • the insertion depth of the core 2 in the injection valve is decisive for the stroke of the valve needle 14.
  • the one end position of the valve needle 14 is fixed to the valve seat surface 16 of the valve seat body 15 when the solenoid valve 1 is not energized, while the other one End position of the valve needle 14 results in energized solenoid coil 1 by the system of the anchor portion 17 at the downstream end of the core.
  • the stroke is adjusted by an axial displacement of the core 2, for example, produced by a machining process such as turning, which is subsequently connected firmly to the valve sleeve 6 according to the desired position.
  • an adjustment in the form of an adjusting sleeve 29 is inserted.
  • the adjusting sleeve 29 is used to adjust the spring bias of the voltage applied to the adjusting sleeve 29 return spring 25, which in turn is supported with its opposite side to the valve needle 14, with an adjustment of the dynamic Abspritzmenge with the adjusting sleeve 29 takes place.
  • a fuel filter 32 is disposed above the adjusting sleeve 29 in the valve sleeve 6.
  • the injector described so far is characterized by its particularly compact design, so that a very small, handy injection valve is created.
  • These components form a preassembled independent assembly, which is called function part 30 below.
  • the functional part 30 thus essentially comprises the electromagnetic circuit 1, 2, 5 and a sealing valve (valve closing body 19, valve seat body 15) with a subsequent jet treatment element (spray perforated disk 21) and as the base body, the valve sleeve. 6
  • connection part 40 is characterized above all by the fact that it comprises the electrical and the hydraulic connection of the fuel injection valve.
  • the largely executed as a plastic part connector 40 therefore has a serving as a fuel inlet nozzle tubular body 42.
  • a concentric to the valve longitudinal axis 10 extending flow bore 43 of an inner connecting pipe 44 in the base body 42 serves as a fuel inlet and is flowed through from the inflow end of the fuel injection valve in the axial direction of the fuel ,
  • a hydraulic connection of connecting part 40 and functional part 30 is achieved in the fully assembled fuel injection valve in that the flow holes 43 and 28 of both modules are brought to each other so that an unimpeded flow through the fuel is ensured.
  • a lower end 47 of the connecting tube 44 protrudes into the opening 11 of the valve sleeve 6 in order to increase the stability of the connection.
  • the main body 42 made of plastic can be sprayed onto the functional part 30 so that the plastic immediately surrounds parts of the valve sleeve 6 and of the valve jacket 5.
  • a secure seal between the functional part 30 and the main body 42 of the Connecting part 40 is achieved for example via a labyrinth seal 46 on the circumference of the valve shell 5.
  • To the base body 42 includes a mitangespritzter electrical connector 56. At its opposite end of the connector 56, the contact elements with the solenoid coil 1 are electrically connected.
  • FIGS. 2 to 5 metallic components of the fuel injection valve are shown, which are fixedly connected to at least one other metallic component by means of pressing.
  • FIG. 2 a detailed view of a valve sleeve 6,
  • FIG. 3 a detailed view of a connecting pipe 44,
  • FIG. 4 a detailed view of serving as an inner pole core 2 and
  • FIG. 5 a detailed view of a valve shell 5 in the form of a magnet pot.
  • press fits between the two components to be fastened are appropriate.
  • press fits generally lead to compressions or strains of a plastic or elastic nature in the components, depending on the tolerance position, material and component geometry. If the component partners can not stretch or compress due to their rigidity or if they are too soft in their material, such as soft magnetic chrome steels, then it is very likely that cold welds ("eaters") will occur during the joining process. Also note the installation conditions of the component partners. If the press connection, for example, in the installed state subjected to an internal pressure, so this can lead to strains and widening. Again, there is a risk of loosening the press connection and in the worst case of loosening the connection. To prevent this, therefore, the largest possible pressure should be generated, which in turn increases the tendency of the components to cold welding. Of course, with costly, precise and costly machining processes, such as fine grinding or honing, the tolerances can be narrowed and press joints improved.
  • the aim is to produce as cost-effective components that are provided as turned parts, press connections between metallic component partners that hold securely and reliably over a long period of time while avoiding cold welding and tight.
  • the press connections should be made very simple and inexpensive, which is why a separate operation of coating or oiling or heating of the component partners is omitted for shrinking.
  • FIG. 2 an example of a thin-walled valve sleeve 6 is shown, which extends over a large part of the axial length of the fuel injection valve and in which the connecting pipe 44 ( FIG. 3 ) in a region a and the core 2 ( FIG. 4 ) can be pressed in a region b and on which the valve jacket 5 (FIG. FIG. 5 ) can be pressed in a region c.
  • the connecting pipe 44 correspondingly has an outer pressing area a ', which corresponds to the area a in the installed state in the valve sleeve 6 to a press connection.
  • a and a ' are characterized areas that come in principle for a material contact in the press connection in question; however, it is by no means necessary to make the press connection over the entire length of a and a '.
  • the connecting pipe 44 should be installed in the valve sleeve 6 with the lowest possible insertion force. By forming a defined short pressing area a ', the pressing length can be minimized from the outset.
  • the pressing area a 'of the connecting pipe 44 is raised in relation to the adjacent sections of the connecting pipe 44.
  • fillets 59 are provided, which have a relatively large radius.
  • the radii correspond, for example, to an angularity in the transitions of approximately 0.5 ° to 1.2 °.
  • furrows or groove-like grooves 61 on the surface are provided, for example as an additional measure, through which zones of possible cold welding are interrupted again and again. Adverse "feeding zones" of the press connection are largely avoided.
  • the grooves reduce 61 the eg circulate, a high excess, since they are plastically deformed during pressing and leveling something.
  • the generated profile of grooves 61 must have such a strength that, with a slight excess, the expansion of the valve sleeve 6 is still effected.
  • the core 2 according to FIG. 4 correspondingly has an outer pressing region b ', which corresponds to the region b in the installed in the valve sleeve 6 to a press connection.
  • b and b ' are characterized areas that come in principle for a material contact in the press connection in question; however, it is by no means necessary to make the press connection over the entire length of b and b '.
  • the core 2 should cause a minimum elongation of the valve sleeve 6 during pressing; However, the maximum insertion force should be limited. By forming a defined short pressing area b ', the pressing length can be minimized from the outset.
  • the pressing portion b 'of the core 2 is formed raised against the adjacent portions of the core 2.
  • inlet fillets 59 which have a relatively large radius.
  • the radii correspond, for example, to an angularity in the transitions of approximately 0.5 ° to 1.2 °.
  • the core 2 may additionally each have a circumferential chamfer 60, which serve the improved insertion and centering of the core 2.
  • groove-like grooves 61 are provided on the surface instead of the inlet fillets 59 or, as an additional measure, through which zones of possible cold welding are interrupted again and again. Adverse "feeding zones" of the press connection are largely avoided.
  • the grooves 61 which circulate for example, reduce a large excess, because they are plastically deformed during pressing and level slightly.
  • the generated profile of grooves 61 must have such a strength that, with a slight excess, the expansion of the valve sleeve 6 is still effected.
  • the valve jacket 5 correspondingly has an inner pressing region c ', which corresponds in the state applied to the valve sleeve 6 with the region c to a press connection.
  • c and c ' are characterized areas that come in principle for a material contact in the press connection in question; however, it is by no means necessary to make the press connection over the entire length of c and c '.
  • furrow-like or groove-like grooves 61 are provided on the surface, are interrupted by the zones of a possible cold welding again and again. Adverse "feeding zones" of the press connection are largely avoided.
  • the grooves 61 which circulate for example, reduce a large excess, because they are plastically deformed during pressing and level slightly.
  • the generated profile of grooves 61 must have such a strength that a slight plastic deformation of the valve sleeve 6 is still effected at a slight excess.
  • the pressing length can be minimized from the outset.
  • the pressing region c 'of the valve jacket 5 can also be designed to be raised in relation to the adjacent sections of the valve jacket 5, whereby the maximum pressing region c' is defined even more precisely.
  • valve sleeve 6 On the valve sleeve 6 is e.g. provided on one axial side of the transition of the pressing portion c with an inlet rounding 59, which has a relatively large radius.
  • the radius corresponds e.g. an angularity in the transition of about 0.5 ° to 1.2 °.
  • pressing area a, b, c, a ', b', c ' is to a "dry coating" made, in which the pressing area a, b, c, a', b ', c' is treated in a washing process with an industrial cleaner, such as a washing emulsion.
  • an industrial cleaner such as a washing emulsion.
  • the washing of the components 2, 5, 6, 44 selected for this purpose takes place, for example, by means of dipping, spraying or sprinkling.
  • Particularly suitable for such a washing process is, for example, the neutral universal cleaner SurTec® 104, which can usually be used as a corrosion inhibitor and has an excellent degreasing effect and reacts very mildly on metallic surfaces.
  • a 10% SurTec® 104 solution is used in the treatment of the pressing area a, b, c, a ', b', c '.
  • the grooves 61 according to the invention in the respective pressing region a, b, c, a ', b', c ' serve as a lubricant reservoir.
  • the modular universal cleaner made of surfactant components SurTec® 089 can also be used.
  • This cleaner with surfactants and corrosion protection components is particularly suitable for immersion cleaning.
  • the metallic components 2, 5, 6, 44 are already cleaned before installation and protected by a passivation from corrosion.
  • the drying of the components 2, 5, 6, 44 after the washing process takes place e.g. using vacuum dryers.

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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)

Claims (9)

  1. Soupape d'injection de combustible pour des installations d'injection de combustible de moteurs à combustion interne, comprenant un axe longitudinal de soupape (10), avec un actionneur excitable (1, 2, 17) pour l'actionnement d'un corps de fermeture de soupape (19) qui coopère avec une surface de siège de soupape (16) prévue au niveau d'un corps de siège de soupape (15), et comprenant au moins une ouverture d'injection (27) et des composants métalliques qui sont connectés fixement les uns aux autres par pressage, la connexion fixe par pressage d'au moins deux composants métalliques (2, 5, 6, 44) de la soupape d'injection de combustible se caractérisant par le fait qu'au moins l'un des partenaires des composants présente dans sa région de pressage (a, b, c, a', b', c') une structure avec des stries (61),
    caractérisée en ce que
    la région de pressage respective (a, b, c, a', b', c') possède, dans au moins une transition à une portion de composants adjacente, un arrondi d'entrée (59) et la région de pressage (a, b, c, a', b', c') est réalisée de manière rehaussée par rapport aux portions de composants adjacentes, les arrondis d'entrée (59) possédant un rayon qui correspond à une angularité dans les transitions de 0,5° à 1,2°.
  2. Soupape d'injection de combustible selon la revendication 1,
    caractérisée en ce que
    les stries (61) dans la région de pressage (a, b, c, a', b', c') sont sur le pourtour.
  3. Soupape d'injection de combustible selon l'une quelconque des revendications précédentes,
    caractérisée en ce
    qu'une douille de soupape à paroi mince (6) est prévue, dans laquelle est enfoncé un tube de raccordement (44) et/ou un noyau (2) et/ou sur laquelle est enfoncée une enveloppe de soupape (5).
  4. Soupape d'injection de combustible selon la revendication 3,
    caractérisée en ce que
    la douille de soupape (6) présente une étendue axiale qui correspond à plus de la moitié de la longueur axiale totale de la soupape d'injection de combustible proprement dite.
  5. Soupape d'injection de combustible selon la revendication 3 ou 4,
    caractérisée en ce que
    la douille de soupape (6) constitue une pièce en tôle emboutie profond.
  6. Soupape d'injection de combustible selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    les partenaires des composants métalliques connectés les uns aux autres par la connexion fixe par pressage se composent d'un acier chromé magnétique doux.
  7. Procédé de fabrication d'une soupape d'injection de combustible selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les composants métalliques (2, 5, 6, 44), au moins dans leurs régions de pressage respectives (a, b, c, a', b', c'), sont lavés avec un agent de nettoyage.
  8. Procédé selon la revendication 7,
    caractérisé en ce que
    l'on utilise en tant qu'agent de nettoyage, les agents de nettoyage universels SurTec® 104 ou
    SurTec® 089.
  9. Procédé selon la revendication 8,
    caractérisé en ce que
    l'on utilise en tant qu'agent de nettoyage une solution à 10 % de SurTec® 104.
EP06778090.8A 2005-08-26 2006-08-01 Soupape d'injection de combustible Expired - Fee Related EP1922480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005040363.8A DE102005040363B4 (de) 2005-08-26 2005-08-26 Brennstoffeinspritzventil
PCT/EP2006/064877 WO2007023069A1 (fr) 2005-08-26 2006-08-01 Soupape d'injection de combustible

Publications (2)

Publication Number Publication Date
EP1922480A1 EP1922480A1 (fr) 2008-05-21
EP1922480B1 true EP1922480B1 (fr) 2017-05-17

Family

ID=37027577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06778090.8A Expired - Fee Related EP1922480B1 (fr) 2005-08-26 2006-08-01 Soupape d'injection de combustible

Country Status (5)

Country Link
US (1) US8272370B2 (fr)
EP (1) EP1922480B1 (fr)
CN (1) CN101248266A (fr)
DE (1) DE102005040363B4 (fr)
WO (1) WO2007023069A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102007008863A1 (de) * 2005-08-26 2008-08-28 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102007049945A1 (de) * 2007-10-18 2009-04-23 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102011089247A1 (de) * 2011-12-20 2013-06-20 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102012208075A1 (de) * 2012-05-15 2013-11-21 Man Diesel & Turbo Se Injektor für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine sowie Kraftstoffversorgungsanlage

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US20020030125A1 (en) * 2000-03-31 2002-03-14 Siemens Automotive Corporation Double concentric inlet tube for setting armature/needle lift and method of manufacturing same

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DE3000061C2 (de) * 1980-01-03 1993-10-14 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
US4938193A (en) * 1987-06-15 1990-07-03 Stanadyne Automotive Corp. Fuel injection nozzle
US5345913A (en) * 1993-11-24 1994-09-13 Caterpillar Inc. Injector assembly
US5775600A (en) * 1996-07-31 1998-07-07 Wildeson; Ray Method and fuel injector enabling precision setting of valve lift
DE19900405A1 (de) * 1999-01-08 2000-07-13 Bosch Gmbh Robert Verfahren zur Montage einer Ventilbaugruppe eines Brennstoffeinspritzventils
DE19958762C2 (de) * 1999-12-07 2001-09-27 Heraeus Electro Nite Int Anschlußanordnung einer mineral-isolierten Leitung
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
DE10103933A1 (de) * 2001-01-30 2002-08-14 Bosch Gmbh Robert Brennstoffeinspritzventil
JP3829704B2 (ja) * 2001-11-30 2006-10-04 株式会社デンソー 燃料噴射弁
DE10334785A1 (de) 2003-07-30 2005-02-24 Robert Bosch Gmbh Brennstoffeinspritzventil und Verfahren zu dessen Montage
DE10338081A1 (de) 2003-08-19 2005-03-10 Bosch Gmbh Robert Brennstoffeinspritzventil
US7389952B2 (en) * 2004-08-04 2008-06-24 Continental Automotive Systems Us, Inc. Deep pocket seat assembly in modular fuel injector with unitary filter and O-ring retainer assembly and methods
US7617605B2 (en) * 2005-06-16 2009-11-17 Continental Automotive Systems Us, Inc. Component geometry and method for blowout resistant welds
US7930825B2 (en) * 2005-06-16 2011-04-26 Continental Automotive Systems Us, Inc. Blowout resistant weld method for laser welds for press-fit parts

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020030125A1 (en) * 2000-03-31 2002-03-14 Siemens Automotive Corporation Double concentric inlet tube for setting armature/needle lift and method of manufacturing same

Also Published As

Publication number Publication date
DE102005040363A1 (de) 2007-03-01
US8272370B2 (en) 2012-09-25
WO2007023069A1 (fr) 2007-03-01
DE102005040363B4 (de) 2017-09-14
EP1922480A1 (fr) 2008-05-21
US20100006068A1 (en) 2010-01-14
CN101248266A (zh) 2008-08-20

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