EP0906507B1 - Soupape d'injection de carburant et utilisation d'une soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant et utilisation d'une soupape d'injection de carburant Download PDF

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Publication number
EP0906507B1
EP0906507B1 EP98907838A EP98907838A EP0906507B1 EP 0906507 B1 EP0906507 B1 EP 0906507B1 EP 98907838 A EP98907838 A EP 98907838A EP 98907838 A EP98907838 A EP 98907838A EP 0906507 B1 EP0906507 B1 EP 0906507B1
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EP
European Patent Office
Prior art keywords
fuel injection
injection valve
valve
functional part
electrical
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 - Lifetime
Application number
EP98907838A
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German (de)
English (en)
Other versions
EP0906507A1 (fr
Inventor
Hubert Stier
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
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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 EP0906507A1 publication Critical patent/EP0906507A1/fr
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Publication of EP0906507B1 publication Critical patent/EP0906507B1/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
    • 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
    • F02M51/0667—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 acting as a valve or having a short 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/90—Electromagnetically actuated fuel injector having ball and seat type valve

Definitions

  • the invention is based on a fuel injector according to the preamble of claim 1, and using a Fuel injection valve according to the preamble of the claim 13th
  • the functional part includes essentially an electromagnetic circuit and an off Valve seat body and valve closing body formed Sealing valve.
  • the connection part are the electrical and the hydraulic connection of the injection valve intended.
  • the fuel injector according to the invention with the characterizing features of claim 1 has the advantage that it can be manufactured inexpensively in a simple manner and is mountable. Also, variations can be made very easily the designs of the fuel injector become. All described embodiments of the Fuel injectors have the advantage of one inexpensive to manufacture with a great many Design variants. Largely in large numbers identical (differences e.g. in the size of the Valve needle strokes or the number of turns of the solenoid) manufactured functional parts can with many various connecting parts, for example in the Size and shape, in the design of the electrical Connector, in the formation of the lower end face of the connector or also in terms of their color, their Marking, their label or another Differentiate labeling, be connected. The logistics in the manufacture of fuel injectors basically simplified.
  • the separation into two modules results in Advantage that all negative influences when manufacturing the largely made of plastic connector (large Overmolding pressures, heat development) of which the important ones Components of the functional part that perform valve functions be kept away.
  • the relatively dirty one Overmolding process can advantageously outside the assembly line of the functional part.
  • this can do all the important valve functions exercising functional part can be performed very briefly.
  • This advantageously results in simplified access to the parts of the injector to be set.
  • In front all things there are clearly shortened ways for that Introduction of measuring arrangements, e.g. from probes to Measurement of the stroke of the valve needle or tools for Setting the dynamic spray rate on the Adjusting.
  • the entry paths of such measuring or setting tools from round 60 mm on e.g. can be shortened by 10 to 20 mm.
  • the assembly line clearly emerges reduced cycle times, which means more at the same time Injectors can be adjusted than before.
  • Embodiments of the invention are in the drawing shown in simplified form and in the following Description explained in more detail.
  • 1 shows a first 2 according to the invention second embodiment of a Fuel injector, Figure 3, a third Embodiment of a fuel injector and Figure 4 is a schematic installation option of a Fuel injector according to Figure 3 on one Internal combustion engine.
  • FIG. 1 shown electromagnetically actuated according to the invention
  • Valve in the form of an injector for Fuel injection systems from mixture-compressing, spark-ignited internal combustion engines has one of one Magnetic coil 1 surrounded, as an inner pole and partially as Fuel flow serving largely tubular Core 2.
  • Core 2 is upstream of solenoid 1 in radial direction stepped, so that the core 2 with its upper cover section 3, the magnetic coil 1 partially envelops and a particularly compact structure of the Injector in the area of the solenoid 1 allows.
  • the magnetic coil 1 is from an outer, for. B. surrounded ferromagnetic valve jacket 5 as the outer pole, the completely surrounds the magnetic coil 1 in the circumferential direction and at its upper end firmly with the core 2 z.
  • the guide section 8 has an inner, concentric to a longitudinal valve axis 10 extending opening 11, which serves as a guide opening for a along the valve longitudinal axis 10 axially movable valve needle 12 serves.
  • valve seat body 14 which is a fixed Has valve seat surface 15 as a valve seat.
  • the Valve seat body 14 is, for example, with a of a laser generated second weld 16 firmly with the Valve jacket 5 connected.
  • the solenoid 1, the Guide section 8 of the valve jacket 5 and the Valve seat body 14 up to valve seat surface 15 form one Through opening, in which the valve needle 12, by a tubular anchor 17 and a spherical one Valve closing body 18 is formed, moved.
  • the tubular anchor 17 is at its downstream, the Spray plate 20 facing end with the z.
  • the injection valve is actuated in a known manner Way electromagnetic.
  • a return spring 25 or closing the injection valve serves the electromagnetic circuit with the magnetic coil 1, the inner core 2, the outer valve jacket 5 and the armature 17.
  • the armature 17 is connected to the valve closing body 18 end facing away from the core 2.
  • the spherical valve closing body 18 interacts with the tapered in the direction of flow Valve seat surface 15 of the valve seat body 14 together, the in the axial direction downstream of a guide opening in Valve seat body 14 is formed.
  • the spray hole disc 20 has at least one, for example four through Eroding or stamping shaped injection openings 27.
  • the insertion depth of the core 2 in the injection valve is below other decisive for the stroke of the valve needle 12.
  • the one end position of the valve needle 12 is not at excited solenoid 1 by the system of Valve closing body 18 on the valve seat surface 15 of the Valve seat body 14 set while the other End position of the valve needle 12 when the solenoid coil 1 is excited by the installation of the armature 17 at the downstream core end results.
  • the stroke is adjusted by an axial Moving the core 2 according to the desired Position subsequently firmly connected to the valve jacket 5 is, wherein a laser welding to achieve the Weld 6 is useful.
  • Flow bore 28 of the core 2 which is the supply of the Serves fuel in the direction of the valve seat surface 15 is in addition to the return spring 25, an adjusting sleeve 29 inserted.
  • the adjusting sleeve 29 is used to adjust the Spring preload of the adjoining the adjusting sleeve 29 Return spring 25, which in turn with their opposite side on the armature 17 supports, also a setting of the dynamic spray quantity with the Adjustment sleeve 29 takes place.
  • Valve jacket 5 has an outer diameter of only approx. 11 mm.
  • Individual components are simplified shown; however, the injector includes one fully functioning magnetic circuit, as of basic structure already from electromagnetic actuable injection valves is known (DE-OS 34 39 672 or DE-OS 195 12 339).
  • the functional part 30 thus includes essentially the electromagnetic circuit 1, 2, 5 and a Sealing valve (valve closing body 18, valve seat body 14) with a subsequent beam processing element (Spray plate 20).
  • the finished set and assembled functional part 30 has z.
  • B. a flat top End face 32 on, for example, two Stick out contact pins 33.
  • the electrical Contact pins 33 that act as electrical connectors serve, the electrical contacting takes place Magnetic coil 1 and thus its excitation.
  • a second is completely independent of the functional part 30 Manufactured assembly, the following as a connector 40th referred to as.
  • the independent and pre-assembled Connection part 40 is only indicated symbolically in FIG. 1;
  • Figure 3 is an embodiment of a connector 40 can be seen in detailed labeling, also on the only indicated connection parts 40 of Figures 1 and 2 is transferable.
  • the connector 40 stands out above all Things out in that it is the electrical and the hydraulic connection of the fuel injector includes.
  • the largely designed as a plastic part Connector 40 therefore has a Tubular base body serving fuel inlet connection 42.
  • a hydraulic connection of connector 40 and Functional part 30 is in the fully assembled Fuel injector achieved in that the Flow bores 43 and 28 of the two assemblies to one another brought that an unimpeded flow through the Fuel is guaranteed. Then z. B. the End faces 48 and 32 of the connecting part 40 and the Functional part 30 directly against each other and are fixed connected with each other. Can in the connection area for example, for secure sealing sealing elements be provided.
  • connection elements 45 provided during the Plastic injection molding process of the base body 42 encapsulated and are then embedded in the plastic.
  • Base body 42 made of plastic also belongs co-molded electrical connector 46 ( Figure 3).
  • the electrical contact elements 45 end at one End as exposed contact pins 47 of the electrical Connector 46, which with a corresponding not shown electrical connection element, such as. B. one Contact strip, for complete electrical contacting of the injection valve can be connected.
  • the Connector 46 opposite end run the Contact elements 45 to a lower end face 48 of the Connection part 40 and form an electrical there Connecting element 49, the z. B. executed socket-like can be.
  • FIG. 2 shows a second embodiment of a fuel injector shown partially.
  • the Fuel injector of Figure 2 corresponds to essentially the fuel injector of FIG. 1, which is why in the following only the different areas of the magnetic circuit are explained in more detail.
  • an elongated ferritic sleeve 52 provided that at least in the area of the armature 17 inner opening 53 that is dimensionally accurate with respect to the inner diameter has.
  • the sleeve 52 ends in the downstream direction seen for example in the area of the guide section 8 of the Valve jacket 5, with which they are, for example, with a Weld 54 is firmly connected.
  • the sleeve 52 is next to the axially movable valve needle 12 also the core 2 introduced, which in turn after the successful Stroke setting is firmly connected to the valve housing in concrete case with the sleeve 52 with an upper weld 55.
  • the sleeve 52 also fulfills a sealing function, see above that in the embodiment shown in Figure 2 dry solenoid 1 is present.
  • FIG 3 shows the two independent and already preassembled modules functional part 30 and connecting part 40 before the final assembly of the Fuel injector.
  • the connector 40 is through a fuel inlet port 42 representing Plastic body formed on which the electrical connector 46 is molded.
  • the electrical connector 46 is in Plastic injection molding process for the production of the connecting part 40 injected onto the fuel inlet port 42.
  • the continuous, z. B. tiered Flow bore 43, in the at its inlet end Fuel filter 44 is introduced.
  • the flow bore 43 ends at the lower, downstream end face 48 of the Connection part 40, this end face 48 in Embodiment according to Figure 3 not perpendicular, d. H. so inclined to the longitudinal axis of the connector 10 '.
  • the Functional part 30 corresponds to that already shown in FIG. 1 Functional part 30 shown.
  • the functional part 30 also extends along a longitudinal valve axis 10, in particular the core 2, the valve jacket 5 and the armature 17 are formed concentrically to the longitudinal axis 10 of the valve. Facing the connecting part 40, the functional part 30 closes with an upper, upstream end face 32. in the assembled state of the fuel injector two end faces 32 and 48 of the functional part 30 and Connection part 40 to each other so that the electrical Connecting elements 33 and 49 and the hydraulic Interconnecting elements 28 and 43 cooperate.
  • the fuel injector is immediately in front at least one inlet valve 62 of the combustion chamber 61 for example having a circular cross section and extending along a longitudinal axis 71 of the intake manifold Intake pipe 60 becomes the intake air for the internal combustion engine provided, the control of the amount of air via a Throttle body, not shown, upstream of the Fuel injection valve takes place in the intake manifold 60.
  • the Fuel injector is so on intake manifold 60 attached and aligned that the to be hosed Fuel substantially directly onto intake valve 62 with a fuel jet 65, and not on the Walls of the intake manifold 60 or the cylinder head of the Internal combustion engine in which the inlet valve 62 is arranged is.
  • the precise spraying of the fuel on the Inlet valve 62 without wetting the walls becomes special through the two-part training of Fuel injector achieved, over the slope the end face 48 on the connector 40 very targeted Spray angle can be adjusted.
  • the Fuel injector can be on the intake manifold 60 so-called extended tip injector can be provided what means that the injection point of the injection valve in the Intake pipe 60 is placed in front. This can even go so far happen that the functional part 30 largely within the Suction tube 60 is located, so that even the electromagnetic Circle 1, 2, 5 is largely placed in the intake manifold 60.
  • the Fuel injector can be in the valve seat 69 be installed such that the elongated valve longitudinal axis 10 of the functional part 30 either the intake pipe longitudinal axis 71 cuts or not cuts, so that in the latter Case the two aforementioned longitudinal axes 10 and 71 lie skew to each other (e.g. interesting at idiosyncratic asymmetrical cylinder head design).
  • Valve seat 69 on the intake manifold 60 provide sealing rings 63 and 64, e.g. B. O-rings.
  • the functional part 30 and the connecting part 40 so together brought that the end faces 32 and 48 lie against each other and an electrical and hydraulic connection of both Assemblies 30, 40 is made.
  • As a joining process of the two assemblies 30 and 40 are particularly suitable Gluing, ultrasonic welding or flanging. When gluing is Pay particular attention to the fact that the adhesive connection is sufficiently stressable.
  • To connect should be able to carry out by means of ultrasonic welding the functional part 30 in the area of the upper end face 32 a plastic area can be provided, the z. B. at the Overmolding of the magnetic coil 1 can be shaped.
  • Two Possibilities of hydraulic connection of the Functional part 30 and the connecting part 40 are already the Figures 1 and 2 removable. On the one hand, they can Flow bores 28 and 43 connected to one another in a butt joint be ( Figure 1); on the other hand, the flow holes 28 and 43 interlock partially overlapping ( Figure 2).
  • the electrical contact can, for. B. take place in such a way that two contact pins 33 of the functional part 30 in two Contact bushes 49 of the connecting part 40 engage.
  • electrical connectors 49 on the connector 40 in Provide pin shape while the electrical Connecting elements 33 of the functional part 30 socket-like would be executed.

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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 (14)

  1. Injecteur de carburant pour une installation d'injection de carburant dans un moteur à combustion interne comportant un circuit électromagnétique avec au moins une bobine électromagnétique (1), un pôle intérieur (2) et un pôle extérieur (5), un organe d'obturation de soupape (18) qui est une partie d'une aiguille d'injecteur (12) mobile dans le circuit électromagnétique et qui coopère avec un siège de soupape (15) prévu sur le corps de siège de soupape (14), un branchement électrique (45, 46, 47) et un branchement hydraulique (42, 43), l'injecteur ayant une pièce fonctionnelle (30) préassemblée et une pièce de branchement (40) préassemblée, dont la pièce fonctionnelle (30) comprend essentiellement le circuit électromagnétique (1, 2, 5), une soupape d'étanchéité formée du corps de siège de soupape (14) et de l'organe d'obturation de soupape (18), des éléments de liaisons électriques (33) et des éléments de liaisons hydrauliques (28), et dont la pièce de branchement (40) comprend le branchement électrique (45, 46, 47), le branchement hydraulique (42, 43), les éléments de liaisons électriques (49) et les éléments hydrauliques (43), la pièce fonctionnelle (30) et la pièce de branchement (40) constituant des ensembles indépendants qui peuvent être solidarisés l'un à l'autre et qui par coopération des éléments de liaisons électriques (33, 49) et des éléments de liaisons hydrauliques (28, 43), réalisent une liaison électrique et hydraulique fiable des deux ensembles (30, 40),
    caractérisé en ce que
    le circuit électromagnétique (1, 2, 5) de la pièce fonctionnelle (30) comporte un noyau (2) qui possède un perçage de passage (28) intérieur, constituant un passage de carburant en direction de la soupape d'étanchéité (14, 18).
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    la pièce de branchement (40) comporte globalement un corps en matière plastique formant un ajutage d'entrée de carburant (42) avec un perçage d'écoulement (43) traversant, l'ajutage d'entrée de carburant (42) comportant un connecteur électrique (46).
  3. Injecteur de carburant selon la revendication 2,
    caractérisé en ce que
    partant du connecteur de branchement électrique (46), au moins deux éléments de contact (45) traversent la pièce de branchement (40) jusqu'aux éléments de liaisons électriques (49).
  4. Injecteur de carburant selon la revendication 2 ou 3,
    caractérisé en ce que
    les éléments de liaisons électriques (49) sont réalisés à proximité d'une surface frontale aval (48) de la pièce de branchement (40) au niveau de laquelle se trouve également l'extrémité aval du perçage d'écoulement (43).
  5. Injecteur de carburant selon l'une des revendications 1 ou 4,
    caractérisé en ce que
    les éléments de liaisons électriques (49) de la pièce de branchement (40) sont réalisés de façon analogue à des connecteurs et/ou des douilles.
  6. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    des broches de contact partent de la bobine électromagnétique (1) de la pièce fonctionnelle (30), ces broches se terminant comme éléments de liaisons électriques à proximité d'une surface frontale, amont (32) de la pièce fonctionnelle (30).
  7. Injecteur de carburant selon les revendications 1 ou 6,
    caractérisé en ce que
    les éléments de liaisons électriques (33) de la pièce fonctionnelle (30) sont réalisés comme un connecteur et/ou une douille.
  8. Injecteur de carburant selon les revendications 5 et 7,
    caractérisé en ce que
    les éléments de liaisons électriques de la pièce fonctionnelle (30) sont deux broches de contact (33) et les éléments de liaisons électriques de la pièce de branchement (40) sont deux douilles (49).
  9. Injecteur de carburant selon les revendications 4 et 6,
    caractérisé en ce que
    les deux surfaces frontales (32, 48) de la pièce fonctionnelle (30) et de la pièce de branchement (40) à l'état monté de l'injecteur sont appliquées l'une contre l'autre pour que les éléments de liaisons électriques (33, 49) et les éléments de liaisons hydrauliques (28, 43) coopèrent.
  10. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    le noyau (2) de la pièce fonctionnelle (30) est réalisé pour qu'à l'état monté de l'injecteur, il pénètre dans le perçage d'écoulement (43) de la pièce de branchement (40).
  11. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    la pièce de branchement (40) s'étend le long de l'axe longitudinal (10') de la pièce de branchement et la pièce fonctionnelle (30) s'étend le long de l'axe longitudinal (10) de l'injecteur, et lorsque l'injecteur de carburant est monté, ces axes ne sont pas alignés
  12. Injecteur de carburant selon la revendication 11,
    caractérisé en ce que
    la pièce de branchement (40) possède une surface frontale (48) en aval, cette surface étant inclinée par rapport à l'axe longitudinal de la pièce de branchement (10').
  13. Application d'un injecteur de carburant selon l'une quelconque des revendications 1 à 12 qui possède une pièce fonctionnelle (30) et une pièce de branchement (40) à un moteur à combustion interne ayant au moins une tubulure d'admission (60) et un logement de soupape (69) s'étendant le long d'un axe longitudinal de réception (70) sur la tubulure d'admission (60),
    caractérisée en ce que
    l'axe longitudinal de soupape (10) de la pièce fonctionnelle (30) a une autre direction que l'axe longitudinal de réception (70) du logement de soupape (69).
  14. Application selon la revendication 13,
    caractérisée en ce que
    la tubulure d'admission (60) présente un axe longitudinal (71) qui n'est pas coupé par le prolongement de l'axe longitudinal de soupape (10).
EP98907838A 1997-03-26 1998-01-21 Soupape d'injection de carburant et utilisation d'une soupape d'injection de carburant Expired - Lifetime EP0906507B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712591A DE19712591A1 (de) 1997-03-26 1997-03-26 Brennstoffeinspritzventil und Verfahren zur Herstellung sowie Verwendung eines Brennstoffeinspritzventils
DE19712591 1997-03-26
PCT/DE1998/000176 WO1998042977A1 (fr) 1997-03-26 1998-01-21 Soupape d'injection de carburant et procede de production et utilisation d'une soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP0906507A1 EP0906507A1 (fr) 1999-04-07
EP0906507B1 true EP0906507B1 (fr) 2003-04-16

Family

ID=7824612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98907838A Expired - Lifetime EP0906507B1 (fr) 1997-03-26 1998-01-21 Soupape d'injection de carburant et utilisation d'une soupape d'injection de carburant

Country Status (11)

Country Link
US (1) US6027049A (fr)
EP (1) EP0906507B1 (fr)
JP (1) JP2000511617A (fr)
KR (1) KR20000015974A (fr)
CN (1) CN1089857C (fr)
BR (1) BR9804797A (fr)
CZ (1) CZ292328B6 (fr)
DE (2) DE19712591A1 (fr)
ES (1) ES2197463T3 (fr)
RU (1) RU2205976C2 (fr)
WO (1) WO1998042977A1 (fr)

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DE19900406A1 (de) * 1999-01-08 2000-07-13 Bosch Gmbh Robert Brennstoffeinspritzventil
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JP3579787B2 (ja) * 1999-05-14 2004-10-20 愛三工業株式会社 燃料噴射弁
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CN1220723A (zh) 1999-06-23
CN1089857C (zh) 2002-08-28
CZ384398A3 (cs) 1999-07-14
RU2205976C2 (ru) 2003-06-10
WO1998042977A1 (fr) 1998-10-01
EP0906507A1 (fr) 1999-04-07
KR20000015974A (ko) 2000-03-25
JP2000511617A (ja) 2000-09-05
DE19712591A1 (de) 1998-10-01
ES2197463T3 (es) 2004-01-01
BR9804797A (pt) 1999-08-17
DE59807943D1 (de) 2003-05-22
CZ292328B6 (cs) 2003-09-17

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