EP0944769B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

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Publication number
EP0944769B1
EP0944769B1 EP98947358A EP98947358A EP0944769B1 EP 0944769 B1 EP0944769 B1 EP 0944769B1 EP 98947358 A EP98947358 A EP 98947358A EP 98947358 A EP98947358 A EP 98947358A EP 0944769 B1 EP0944769 B1 EP 0944769B1
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
jacket
internal pole
injection valve
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
EP98947358A
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German (de)
English (en)
Other versions
EP0944769A1 (fr
Inventor
Ferdinand Reiter
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 EP0944769A1 publication Critical patent/EP0944769A1/fr
Application granted granted Critical
Publication of EP0944769B1 publication Critical patent/EP0944769B1/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
    • 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
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • 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
    • 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
    • F02M51/06—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
    • F02M51/0682—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 the body being hollow and its interior communicating with the fuel flow

Definitions

  • the invention is based on a fuel injector according to the genus of the main claim, as from the document EP 0 278 099 A is known.
  • From DE-OS 195 03 821 is already an electromagnetic actuatable fuel injector known in which a metallic body of the valve in one part or two parts is formed without a non-magnetic intermediate part.
  • the base body comprises the sections of the inlet connector, magnetic inner pole (core) and valve seat support. moreover the base body takes over the guidance of an anchor the one interacting with a valve seat Valve closing body can be actuated.
  • the Basic body a magnetic choke point, the one has significantly smaller wall thickness than the wall thickness of the upstream core and the downstream core Valve seat carrier.
  • the fuel injector according to the invention with the characteristic features of the main claim has the advantage a particularly simple and inexpensive Manufacturability, but by no means Valve functions are impaired.
  • the inner pole and the valve jacket are such shaped that the valve jacket at least the inner pole partially radially surrounds so that between the two a space is formed in which the solenoid is introduced.
  • the solenoid is safe and reliable embedded, since they are completely in the circumferential direction Valve jacket is surrounded and the space axially above and below the magnetic coil by metallic contact of the Valve jacket and the inner pole is delimited.
  • This direct metallic contact of the valve jacket with the Inner pole and the associated closed coil space ensure that in less expensive, less material and component-reducing manner, no further intermediate components required are.
  • the design allows under Maintaining the required soft magnetic Properties for the production of inner pole and Valve jacket best possible selection of materials.
  • the inner pole of the Fuel injection valve can be manufactured by extrusion, which can be carried out particularly cheaply as cold forming.
  • To the Cold extrusion presses are suitable for steels with low Tensile strengths (unalloyed steels) as well as steels with high tensile strengths (high-alloy steels).
  • Unalloyed Steels do reach after cold extrusion Strength values (tensile strength, hardness) of alloyed Steels in the annealed condition.
  • the consideration of the tensile strengths is then not necessary because the required strength values on each Case can be achieved.
  • As a great advantage of extrusion the inner pole remains that a smaller Material use compared to known turned parts is necessary which is clear. Cost advantages result.
  • thermoformed valve jacket inside the pole is firmly connected to the inner pole and together with this forms a metal base body that over the extends the entire axial length of the valve.
  • Non-magnetic intermediate parts can be dispensed with in this way.
  • FIG. 1 shows a first Example of a fuel injector and Figure 2 a second example of a fuel injector.
  • Electromagnetically actuated valve in the form of a Fuel injection valve for fuel injection systems of mixture-compressing, spark-ignited Internal combustion engines have one of a magnetic coil 1 surrounding, serving as fuel inlet connection, tubular, extruded core 2 as so-called Pole.
  • a plastic bobbin 3 takes one Winding of the magnetic coil 1.
  • the core 2 has one concise tapering of its wall thickness in the axial Extension range of the magnetic coil 1. Starting from a shoulder 5 of the core, which acts as a stop surface 6 acts, closes in the downstream direction thin-walled magnetic throttle 8.
  • the wall thickness of the thin-walled magnetic choke point 8 is, for example, between 0.2 and 0.5 mm, while the wall thicknesses of the regions of the core 2 which follow upstream and downstream should be in the order of magnitude of 1 to 3.5 mm, for example, in order to achieve an optimal magnetic flux, thus approximately by a factor of 5 to 20 larger than at the throttling point 8.
  • the annular cross-sectional areas of the core 2 in front of and behind the throttling point 8 have a size of 20 to 30 mm 2 , for example. These sizes are only for better understanding and do not limit the invention in any way.
  • the three essential sections 9, 8, 10 of the core 2 are all concentric to a longitudinal valve axis 12 educated.
  • the magnetic choke point 8 are in a large part of the known injection valves
  • non-magnetic intermediate parts provided for a magnetic separation of the core 2nd and a downstream one and as a valve seat support serve connecting part, but on the existing fuel injection valves are dispensed with can.
  • the core or inlet connector 2 is made by means of extrusion.
  • extrusion the punch and die form a gap.
  • the stamp presses the workpiece material through the mold gap, the corresponding cross section giving shape.
  • the extrusion of the core 2 is carried out, for example, as cold forming of a corresponding steel. Cold extrusion is possible from unalloyed steel grades with tensile strengths of 350 N / mm 2 to high-alloy steels with tensile strengths of 800 N / mm 2 .
  • Fuel injector a thin-walled, sleeve-shaped, preferably by deep drawing manufactured and as a housing, as part of the magnetic circuit and serving as valve seat support valve jacket 14, the the core 2 at least in sections radially as a component larger diameter than that of the core 2 surrounds. So is for example the magnet coil 1 with its coil former 3 between the valve jacket 14 and the core 2 in one for it provided annular space 15 embedded.
  • a longitudinal opening 18 extends into which at least the core end 10 protrudes so that it is on the inner wall of the Valve jacket 14 is present.
  • the core end 10 is used for Transmission of the magnetic flux from the valve jacket 14 via a radial air gap on the armature 22.
  • valve needle 19 in the longitudinal opening 18 arranged with a e.g. tubular connector 20 is equipped, being at its upstream end an anchor 22 and at its downstream end spherical valve closing body 23 are attached.
  • valve closing body 23 At the Extent of for example by welding with the Connecting part 20 are connected valve closing body 23 for example five flats 24 to flow past Provided fuel.
  • the fuel injector is actuated in known electromagnetic.
  • a return spring 25 or closing the injection valve serves the electromagnetic circuit with the magnetic coil 1, the core 2, the valve jacket 14 and the armature 22.
  • the armature 22 is with the end facing away from the valve closing body 23 of the connecting part 20 also by a weld connected and onto the core part 9 or the stop surface 6 of core 2 aligned.
  • the Core 2 remote end of the valve jacket 14 is in the Longitudinal opening 18 a cylindrical valve seat body 29, which has a valve seat surface 30, for example by Welding tightly assembled.
  • a guide opening 32 of the Valve seat body 29 On the outer circumference of the armature 22 is e.g. a guide surface 36 is provided, the z. B. by Turning is made and also the axial guide the valve needle 19, here opposite the core 2 in the area of Throttle point 8, is used.
  • the at least one guide surface 36 can e.g. B. as a circumferential continuous guide ring or as several circumferentially spaced apart trained guide surfaces.
  • the spherical valve closing body 23 interacts with the tapered in the direction of flow Valve seat surface 30 of the valve seat body 29 together.
  • On its end facing away from the valve closing body 23 the valve seat body 29 with a cup-shaped, for example trained spray plate 34 firmly connected.
  • the Spray plate 34 has at least one, for example four formed by eroding or stamping Spray orifices 35.
  • the insertion depth of the valve seat body 29 determines the Size of the stroke of the valve needle 19.
  • the one End position of the valve needle 19 when not energized Solenoid 1 by the valve closing body 23 on the valve seat surface 30 of the valve seat body 29 fixed while the other end position of the Valve needle 19 through the system when solenoid 1 is excited of the anchor 22 on the e.g. hard chrome-plated stop surface 6 the shoulder 5 of the core 2 results.
  • the bobbin 3 In the space 15 between the valve jacket 14 and the core 2 is below the bobbin 3 a e.g. in form of O-rings formed sealing ring 37 arranged for one Sealing the coil space ensures.
  • the recording of the Seal ring 37 serving annular chamber is through the bottom of the bobbin 3, the inner wall of the in this Tiered area and located in the downstream direction Diameter tapering valve jacket 14 and the outer Circumference of the core end 10, the inside of the anchor guide serves, limited.
  • Adjustment sleeve 39 for example made of rolled Spring steel sheet is formed, is used to adjust the Spring preload of the adjoining the adjusting sleeve 39 Return spring 25, which in turn with their opposite side on the connecting part 20 of the Valve needle 19 supports.
  • a fuel filter 40 protrudes into the Flow bore 38 of the core 2 at its inlet side End and ensures that such are filtered out Fuel components that due to their size in the Injector blockages or damage could cause.
  • the core (inner pole, inlet connection) 2 is largely above a radially outward collar 41, which the Magnetic coil 1 receiving space 15 upwards completes, enclosed with a plastic extrusion 42.
  • This plastic encapsulation 42 includes, for example co-molded electrical connector 43, e.g. immediately above the collar 41 of the core 2 and the upper end facing the inlet end of the injection valve End of the valve jacket 14 protrudes radially outwards.
  • Plastic connector 43 include for example two metallic contact pins 44 which directly in connection with the winding of the magnetic coil 1 stand. The contact pins 44 protrude from the connector 43 out of the bobbin 3 through a recess 47 in the collar 41.
  • the deep-drawn valve jacket 14 has near its downstream end a fold formed perpendicular to the axial extent of the valve jacket 14 external circumferential ring bead 49 on, during the Valve jacket 14 at its immediate downstream end an outwardly facing collar 50 in the form of a Has on top.
  • the ring bulge 49 and the collar 50 form together with the outer wall of the valve jacket 14 in this area an annular groove 51 in which a sealing ring 52nd arranged for sealing against a valve seat is.
  • FIG. 2 In the second exemplary embodiment of the following FIG. 2 are those compared to that shown in Figure 1 Embodiment constant or equivalent Parts identified by the same reference numerals.
  • the main difference to the first embodiment is in that a core 2, which represents an inner pole, the magnetic throttle 8 and the valve seat support 14 'forming valve tube 55 can be produced by means of extrusion is, while the actual valve jacket 14 in one piece a valve inlet port 56 as a deep-drawn component is trained.
  • the fuel injector according to Figure 2 has likewise the tubular, surrounded by the magnetic coil 1 extruded core 2, but not as in the figure 1 shown as an immediate example Fuel inlet socket is used, but in one piece with the valve seat support 14 'is formed downstream, the together form the component referred to as valve tube 55. Starting from the shoulder 5 of the core, which as Stop surface 6 acts, closes in the downstream Towards the thin-walled magnetic throttle point 8.
  • valve inlet port 56 serving valve jacket 14
  • the valve tube 55 at least in sections radially as Component with a larger diameter than that of the valve tube 55 surrounds. So is the magnet coil 1 with its coil former 3 again between the valve jacket 14 and the valve tube 55 in an annular space 15 provided for this purpose embedded.
  • the valve inlet port 56 of the valve jacket 14 runs a flow bore 38 into which at least that protrudes upper core part 9 such that it is on the inner Wall of the valve inlet connector 56 is present.
  • valve tube 55 again has an inner one Longitudinal opening 18 through which the fuel flows.
  • the valve needle 19 is arranged, the at least of the anchor 22 and that on his downstream end attached spherical Valve closing body 23 is formed.
  • the valve needle is shortened compared to the first embodiment formed since there is no connecting part 20.
  • sealing ring 37 which e.g. in Form of an O-ring is in this Embodiment not arranged in the space 15. Nevertheless, the sealing ring 37 lies between the valve jacket 14 and the valve tube 55 before, more precisely between the valve inlet port 56 and the upper core part 9 of the Kerns 2.
  • One used to hold the sealing ring 37 circumferential annular groove 58 is for this on the outer circumference of the core 2 provided.
  • the valve inlet port 56 is part of the valve jacket 14 largely enclosed with plastic encapsulation 42.
  • plastic encapsulation 42 includes a molded part electrical connector 43, e.g. right away above a radial shoulder 59 of the valve jacket 14 radially protrudes outwards. With the radial shoulder 59 it is achieved that the valve jacket 14 in the extent of Magnetic coil 1 has a larger diameter than in Area of the valve inlet port 56, which ultimately the Space 15 for receiving the magnetic coil 1 created is.
  • To the connector 43 made of plastic include, for example, two metallic contact pins 44, which directly with the winding of the solenoid 1 in Connect. The contact pins 44 protrude to Connector 43 out of the bobbin 3 through the recess 47 in the radial shoulder 59.
  • valve jacket 14 In the area of the valve seat support 14 'below the Gap 15 is the valve jacket 14 by e.g. several extensively attached, generated by means of a laser Spot welds 45 'or a continuous one Welded on the valve tube 55 attached. This fixed Connection does not have to perform a sealing function.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (13)

  1. Soupape d'injection de carburant présentant un axe longitudinal (12), un circuit électromagnétique comprenant au moins une bobine magnétique (1), un pôle interne (2) métallique, une enveloppe métallique de soupape (14) et un induit (22), et dans lequel
    le pôle interne (2) et l'enveloppe de soupape (14) sont formés de manière que l'enveloppe (14) entoure le pôle interne (2) au moins en partie, à une certaine distance radiale créant entre eux (2, 14) un espace intermédiaire (15) dans lequel est montée la bobine (1) qui se trouve totalement entourée périphériquement par l'enveloppe de soupape (14),
    l'induit (22) peut actionner un corps de fermeture (23) coopérant avec une portée fixe de siège de soupape (30),
    le pôle interne (2) et l'enveloppe de soupape (14) délimitent ensemble l'espace intermédiaire (15), axialement au-dessus et en dessous de la bobine (1), et
    entre le pôle interne (2) et l'enveloppe de soupape (14), à la fois au-dessus et en dessous de la bobine (1), il y a un contact métallique,
    le pôle interne (2) et l'enveloppe de soupape (14) sont reliés fixement l'un à l'autre au moins dans une des deux zones de contact,
    caractérisée en ce que
    le pôle interne (2) est filé à la presse.
  2. Soupape d'injection selon la revendication 1,
    caractérisée en ce que
    l'enveloppe de soupape (14) est fabriquée par étirage profond.
  3. Soupape d'injection selon la revendication 1 ou 2,
    caractérisée en ce que
    le pôle interne (2) présente une zone d'étranglement magnétique (8) à paroi mince, suivie dans le sens de l'écoulement et dans le sens opposé, par des zones présentant une épaisseur de paroi plus forte que celle de la zone d'étranglement (8).
  4. Soupape d'injection selon la revendication 3,
    caractérisée en ce que
    l'épaisseur de la paroi de la zone d'étranglement (8) est comprise entre 0,2 et 0,5 mm.
  5. Soupape d'injection selon la revendication 3 ou 4,
    caractérisée en ce que
    la zone d'étranglement (8) est située dans une partie en longueur du pôle interne (2) qui est éloignée de l'enveloppe de soupape (14) par l'espace intermédiaire (15).
  6. Soupape d'injection selon l'une des revendications précédentes,
    caractérisée en ce que
    le pôle interne (2) est formé de manière à servir de noyau de circuit magnétique, de tubulure d'entrée de soupape et de guidage de l'induit.
  7. Soupape d'injection selon l'une des revendications 1 à 5,
    caractérisée en ce que
    le pôle interne (2) est réalisé sous la forme de tube de soupape (55) servant de noyau de circuit magnétique, de support de siège de soupape (14') et de guidage de l'induit.
  8. Soupape d'injection selon l'une des revendications 1 à 6,
    caractérisée en ce que
    l'enveloppe de soupape (14) constitue en même temps le support de siège de soupape.
  9. Soupape d'injection selon l'une des revendications 1 à 5 ou 7,
    caractérisée en ce que
    l'enveloppe de soupape (14) constitue en même temps la tubulure d'entrée de soupape (56).
  10. Soupape d'injection selon l'une des revendications précédentes,
    caractérisée en ce que
    l'espace intermédiaire (15) accueillant la bobine (1) est rendu étanche par une bague d'étanchéité (37) prévue entre le pôle interne (2) et l'enveloppe de soupape (14).
  11. Soupape d'injection selon la revendication 1,
    caractérisée en ce que
    le pôle interne (2) et l'enveloppe de soupape (14) s'étendent tous deux sur toute la longueur de la soupape.
  12. Soupape d'injection selon la revendication 1,
    caractérisée en ce que
    le pôle interne (2) présente, au-dessus de la bobine (1), un collet (41) dirigé radialement vers l'extérieur et présentant une cavité (47) à travers laquelle passent des broches de contact (44) allant de la bobine (1) à un connecteur de raccordement électrique (43).
  13. Soupape d'injection selon la revendication 1,
    caractérisée en ce que
    l'enveloppe de soupape (14) présente, au-dessus de la bobine (1), un épaulement radial (59) comportant une cavité (47) à travers laquelle passent des broches de contact (44) allant de la bobine (1) à un connecteur de raccordement électrique (43).
EP98947358A 1997-10-10 1998-07-28 Soupape d'injection de carburant Expired - Lifetime EP0944769B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19744739 1997-10-10
DE19744739A DE19744739A1 (de) 1997-10-10 1997-10-10 Brennstoffeinspritzventil
PCT/DE1998/002134 WO1999019620A1 (fr) 1997-10-10 1998-07-28 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP0944769A1 EP0944769A1 (fr) 1999-09-29
EP0944769B1 true EP0944769B1 (fr) 2003-05-07

Family

ID=7845129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98947358A Expired - Lifetime EP0944769B1 (fr) 1997-10-10 1998-07-28 Soupape d'injection de carburant

Country Status (10)

Country Link
US (1) US6186472B1 (fr)
EP (1) EP0944769B1 (fr)
JP (1) JP4180122B2 (fr)
KR (1) KR100573190B1 (fr)
CN (1) CN1138915C (fr)
AT (1) ATE239867T1 (fr)
BR (1) BR9806699A (fr)
DE (2) DE19744739A1 (fr)
ES (1) ES2199465T3 (fr)
WO (1) WO1999019620A1 (fr)

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US20010002680A1 (en) 1999-01-19 2001-06-07 Philip A. Kummer Modular two part fuel injector
JP2001012636A (ja) 1999-06-29 2001-01-16 Aisan Ind Co Ltd 複数のソレノイドと共通筒を有する燃料噴射装置
DE19932761A1 (de) * 1999-07-14 2001-01-18 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19932762A1 (de) 1999-07-14 2001-01-18 Bosch Gmbh Robert Verfahren zur Einstellung des Ventilhubs eines Einspritzventils
US6409145B1 (en) 2000-02-28 2002-06-25 Delphi Technologies, Inc. Plunger assembly having a preset spring force pre-load
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
DE10051016A1 (de) * 2000-10-14 2002-04-18 Bosch Gmbh Robert Brennstoffeinspritzventil
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
JP3791591B2 (ja) * 2000-11-29 2006-06-28 株式会社デンソー 燃料噴射弁とそのスプリング力調整用のアジャストパイプ及びその圧入方法
US6520421B2 (en) 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
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
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
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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
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
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
US6695232B2 (en) 2000-12-29 2004-02-24 Siemens Automotive Corporation Modular fuel injector having interchangeable armature assemblies and having a lift set sleeve
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
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WO1999019620A1 (fr) 1999-04-22
EP0944769A1 (fr) 1999-09-29
DE19744739A1 (de) 1999-04-15
US6186472B1 (en) 2001-02-13
JP4180122B2 (ja) 2008-11-12
CN1138915C (zh) 2004-02-18
CN1241241A (zh) 2000-01-12
DE59808268D1 (de) 2003-06-12
KR20000069385A (ko) 2000-11-25
BR9806699A (pt) 2000-02-29
JP2001505979A (ja) 2001-05-08
KR100573190B1 (ko) 2006-04-24
ATE239867T1 (de) 2003-05-15
ES2199465T3 (es) 2004-02-16

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