EP2739844B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

Info

Publication number
EP2739844B1
EP2739844B1 EP12727637.6A EP12727637A EP2739844B1 EP 2739844 B1 EP2739844 B1 EP 2739844B1 EP 12727637 A EP12727637 A EP 12727637A EP 2739844 B1 EP2739844 B1 EP 2739844B1
Authority
EP
European Patent Office
Prior art keywords
region
magnetic
fuel injector
valve according
injector 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.)
Not-in-force
Application number
EP12727637.6A
Other languages
German (de)
English (en)
Other versions
EP2739844A1 (fr
Inventor
Johannes Schmid
Juergen Graner
Tilla Haubold
Friedrich Moser
Matthias Schumacher
Andreas Burghardt
Jochen Rager
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 EP2739844A1 publication Critical patent/EP2739844A1/fr
Application granted granted Critical
Publication of EP2739844B1 publication Critical patent/EP2739844B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B22F5/106—Tube or ring forms
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • 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
    • 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
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F2003/106—Magnetic circuits using combinations of different magnetic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Definitions

  • the present invention relates to a fuel injection valve for injecting fuel.
  • High-pressure injection valves of the prior art such as in WO 2011/076535 A
  • have a powerful magnetic circuit which allows the realization of short switching times and a reproducible opening and closing behavior.
  • an inner pole has a high saturation induction in order to achieve a high degree of dynamics
  • current high-pressure injection valves have magnetic losses due to their valve sleeve during the build-up and reduction of the magnetic field. This leads to a significant deterioration of the switching time and dynamics of the fuel injection valve.
  • the production of the armature is very expensive and expensive.
  • the resistance to aggressive media such.
  • As ethanol or urea which are increasingly contained in the fuels, insufficient to ensure satisfactory durability of the injectors in countries with strong fluctuations in fuel quality.
  • compliance with legal regulations, in particular with regard to the use of hazardous materials must be ensured in the future.
  • the fuel injection valve according to the invention with the features of claim 1 has the advantage that in this case a magnetic separation between the valve sleeve and the inner pole is provided, which allows a significant reduction of magnetic losses and thus a significantly reduced switching time of the valve. Furthermore, by the use of suitable materials improved robustness or wear resistance against aggressive media such Ethanol, etc. reached.
  • the fuel injection valve comprises a coil, an inner pole, a valve sleeve and a magnetic separation element.
  • the valve sleeve and the magnetic separation element are integrally formed as a powder injection-molded component, wherein the valve sleeve forms a magnetic region and the magnetic separation element forms a non-magnetic region, which are materially interconnected.
  • valve sleeve thus the use of a fuel-resistant, high pressure resistant ferrite material with the lowest possible carbon content and preferably a chromium content of 13% to 17% is possible.
  • a non-magnetic austenite material can be used for the magnetic separation element, which contributes to a significant reduction of the magnetic losses.
  • a weld joint or solder joint is provided between the powder injection molding member and the inner pole.
  • a reliable fastening is ensured, which can be produced time-consuming and cost-efficient in production.
  • the inner pole has a passage opening in the axial direction. In this way, a passage of fuel through the inner pole can be made possible and the fuel injection valve have a compact construction.
  • the inner pole is formed as a powder injection-molded component and preferably made of a material with high magnetic saturation induction, in particular FeCo with a cobalt content of 17% to 50%. Particularly preferably, a material with a cobalt content of 48% to 50% can be used, since this material also has the advantage of good fuel resistance.
  • a material with high magnetic saturation induction in particular FeCo with a cobalt content of 17% to 50%.
  • a material with a cobalt content of 48% to 50% can be used, since this material also has the advantage of good fuel resistance.
  • the inner pole is designed as a powder injection-molded component and comprises a first region with a first magnetic saturation induction and a second region with a second region magnetic saturation induction, which is smaller than the first magnetic saturation induction.
  • the first and second regions are connected to one another by material bonding.
  • the first region with the higher magnetic saturation induction which is preferably made of a FeSi material with a silicon content of 1% to 7% or of a FeCo material with a cobalt content of 17% to 50%, here represents the high dynamics safe with short switching times of the fuel injection valve.
  • the use of fuel-resistant, high-pressure-resistant ferrite with a low carbon content and 13% to 17% chromium content is thus possible.
  • valve sleeve, the magnetic separation element and the inner pole are integrally formed as a powder injection-molded component and materially connected to each other.
  • valve sleeve and the inner pole are made of a same material, in particular of X2Cr13MoSi.
  • the second region of the inner pole is made of a fuel-resistant magnetic material, which envelops the inner pole as a fuel-resistant layer and ensures the resistance to the aggressive fuels.
  • the magnetic separation element adjoining the first region of high magnetic saturation induction achieves a reliable magnetic separation with respect to the valve sleeve adjoining it, whereby the magnetic losses due to this one-piece component are significantly minimized.
  • the second region preferably forms a jacket region of the through-opening and an end-side region of the inner pole, wherein, in particular, the end-side region has a thickness of 0.5 mm in the axial direction. Further preferably, the end face region forms a stop for a magnet armature. As a result, a fuel-resistant end face region is achieved in a residual air gap between the inner pole and magnet armature, which simultaneously enables a wear-resistant anchor stop.
  • the first region of the inner pole preferably has a circumferential flange region projecting in the radial direction.
  • an upper lid for the fuel injection valve can be integrated in the one-piece powder injection molded component, resulting in a further reduction in the number of components.
  • the magnetic separation element is a circumferential ring.
  • a fuel-resistant material is provided on an inner jacket portion of the annular magnetic separation element.
  • all corrosion-resistant layers of the entire powder injection-molded component are made of the same material, so that its manufacture is substantially simplified.
  • the magnetic separation element is designed as a magnetic throttle, which has a first and second magnetic connection region, a throttle region and a first and second transition region.
  • the first and second transition regions are arranged in the axial direction between the first and second connection regions, and the throttle region is arranged between the first and second transition regions.
  • the preferably magnetic ferrite material is filled in the throttle region and in the first and second transition regions with non-magnetic austenite material. This can be achieved in addition to minimizing the magnetic leakage flux and a further reduction of the switching times of the fuel injection valve.
  • the first and second transition regions are tapered.
  • the throttle behavior can be adjusted individually depending on the application.
  • the throttle region preferably has an inner and / or outer cylinder region of a magnetic, electrically conductive material.
  • the cylinder region is formed here as a thin ferritic layer.
  • the throttle area has to increase the strength of an additional range of non-magnetic austenite material or ceramic material.
  • a preferred layer thickness of the cylinder region in this case is a maximum of 0.5 mm, in particular 0.2 mm to 0.3 mm, particularly preferably 0.25 mm.
  • the throttle effect can be individually adjusted by varying the thickness of the magnetic cylinder area.
  • the throttle region is made of an electrically non-conductive material.
  • z As a ceramic material, an eddy current loss can be reduced and the dynamics of the fuel injection valve further increased and its switching times are further reduced.
  • FIGS. 1 to 7 Preferred embodiments of a fuel injection valve 1 described in detail. Identical or functionally identical components are designated in the embodiments with the same reference numerals.
  • FIG. 1 and FIG. 2 show sectional views of a portion of a fuel injection valve 1 according to a first embodiment of the invention, comprising a coil 2, an inner pole 3, a valve sleeve 4, a magnetic separation element 40 and a magnet armature 5.
  • the magnetic separation element 40 is annularly cylindrical in this case and attached to the inner pole 3 by means of a welded connection 30. Instead of the welded joint 30 may alternatively be provided a solder joint.
  • the inner pole 3 has a central passage opening 6 running in an axial direction XX.
  • valve sleeve 4 and the magnetic separation element 40 of the first embodiment are integrally formed here as a powder injection-molded component 41 and materially connected to each other.
  • the valve sleeve 4 forms a magnetic region and the magnetic separation element 40 forms a non-magnetic region.
  • the valve sleeve 4 is preferably made of a fuel-resistant, high-pressure-resistant ferrite material having a low carbon content and at least 13% and a maximum of 17% chromium content, such as. X2Cr13MoSi.
  • the Magnetic separation element 40 is preferably a non-magnetic austenite material, such as.
  • valve sleeve 4 including the magnetic separation element 40 is provided as a powder injection molded component 41 with reduced magnetic losses and a permanent corrosion resistance against the passed through the passage opening 6 and located on the inner circumference of the valve sleeve 4 fuel.
  • the inner pole 3 of the second embodiment of FIG. 3 formed as a powder injection-molded component 42.
  • the inner pole 3 comprises a first region 31 with a first magnetic saturation induction and a second region 32 with a second magnetic saturation induction, which is smaller than the first magnetic saturation induction.
  • the first and second regions 31, 32 are connected to one another in a fluid-like manner.
  • the first region 31 is preferably made of a FeSi material with a silicon content of 1% to 7% or of a FeCo material with a cobalt content of 17% to 50% to achieve a good magnetic efficiency, which provides high dynamics with short Switching times of the fuel injection valve ensured.
  • the second region 32 is made of fuel-resistant, high-pressure ferrite material having a low carbon content and 13% to 17% chromium content, which has a durable robustness to the fuel in contact therewith. Further, the second region 32 forms a cladding region 35 of the through-hole 6 and an end-face region 36, thereby protecting the first region 31 made of non-fuel-resistant material from contact with fuel. Furthermore, the material of the second region 32 is considerably less expensive than the material used for the first region 31, resulting in a significant reduction of the component costs.
  • valve sleeve 4 In contrast to the first and second embodiments described above, in the in FIG. 4 illustrated third embodiment, the valve sleeve 4, the magnetic separation element 40 and the inner pole 3 integrally formed as a powder injection molded component 43 and materially connected to each other.
  • the valve sleeve 4 and the inner pole 3 formed entirely from the second region 32 are in this case made of the same material, especially made of X2Cr13MoSi, which has good fuel resistance.
  • the inner pole 3 may also be made of a high magnetic saturation induction material, such as a FeCo material having a cobalt content of 48% to 50%, which also has fuel resistance and the advantage of high magnetic saturation induction.
  • the same austenite material as in the first and second embodiments is used.
  • valve sleeve 4 the magnetic separation element 40 and the inner pole 3 are integrally formed as a powder injection-molded component 44 and materially connected to each other.
  • the inner pole 3 is in this case similar to the second embodiment of a first and second region 31, built around 32, so that reference may be made to the above description.
  • the valve sleeve 4, the magnetic separation element 40 and the inner pole 3 are integrally formed as a powder injection-molded component 45 and materially connected to each other.
  • the first region 31 of the inner pole 3 in this case has a protruding, circumferential flange region 33, which is integrated in the one-piece powder injection-molded component 45 as the upper cover of the fuel injection valve 1.
  • a recess 37 is provided in an end section 38 of the second region 32, which avoids unnecessary material accumulation and considerably simplifies the injection molding process. In addition to a lower component weight thereby lower unit costs are achieved.
  • the valve sleeve 4, the magnetic separation element 40 and the inner pole 3 are integrally formed as a powder injection-molded component 46 and materially connected to each other.
  • the fuel-resistant material is also provided on an inner jacket region 47 of the magnetic separation element 40, which is used for the valve sleeve 4 and the second region 32 of the inner pole 3.
  • a completely closed fuel-resistant protective layer is formed the entire inner circumferential surface of the through hole 6 of the powder injection-molded component 46 is reached.
  • FIGS. 8 to 10 alternative designs for the magnetic separation element 40 described in detail, which is designed as a magnetic throttle and is integrated in the one-piece powder injection molded component. Identical or functionally identical components are designated in the embodiments with the same reference numerals. The in the FIGS. 8 to 10 described magnetic separating elements 40 may be used in all previously described embodiments.
  • the cylindrical annular magnet separation element 40 is in this case designed as a magnetic throttle having a first and second magnetic connection region 401, 402, a throttle region 405 and a first and second transition region 403, 404.
  • the first and second junction regions 403, 404 are arranged in the axial direction XX between the first and second terminal regions 401, 402, and the choke region 405 is disposed between the first and second junction regions 403, 404.
  • the first and second transition regions 403, 404 are designed to taper in the direction of the respective connection region 401 or 402 and to an outer lateral surface 407 of the magnetic separation element 40.
  • the throttle region 405 has an inner cylinder region 406, which is formed as a thin ferritic layer.
  • the throttle region 405 and parts of the transition regions 403, 404 are filled with non-magnetic austenite material or ceramic.
  • a preferred layer thickness of the cylinder region 406 in this case is a maximum of 0.5 mm, in particular 0.2 mm to 0.3 mm, particularly preferably 0.25 mm.
  • magnetic separator 40 has a radially inversely formed throttle region 405, which tapers in the respective transition regions 403 and 404 to an inner circumferential surface 408 of the magnetic separation element 40 out.
  • the magnetic separation element 40 of the second embodiment has an outer Cylinder area 409 of magnetic, electrically conductive material.
  • a non-magnetic, preferably additionally eddy current-free, ceramic material may be alternatively used in the throttle region 405 and in parts of the transition regions 403, 404 for filling.
  • the transition regions 403, 404 in the axial direction XX are not tapered.
  • a required for the particular application throttle effect by different shapes or proportions of magnetic and non-magnetic material and / or their distribution in the axial direction XX of the magnetic separation element 40 can be adjusted specifically.
  • one-piece powder injection molding components for the fuel injection valve according to the invention can be manufactured particularly economically in a single manufacturing process, which is not achievable with conventional manufacturing methods.
  • this particular a significant reduction of the magnetic losses is achieved, whereby the desired and required for high-pressure injectors dynamic response significantly improved and their switching time can be significantly reduced.
  • an increase in the magnetic force in the range of 25% to 35% can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (16)

  1. Soupape d'injection de carburant pour l'injection de carburant, comprenant
    - une bobine (2),
    - un pôle intérieur (3),
    - une douille de soupape (4),
    - un élément de séparation magnétique (40),
    - dans lequel la douille de soupape (4) et l'élément de séparation magnétique (40) sont réalisés d'un seul tenant sous forme de composant moulé par injection de poudre (41) et la douille de soupape (4) forme une zone magnétique et l'élément de séparation magnétique (40) forme une zone non magnétique, qui sont matériellement assemblées l'une à l'autre,
    caractérisée en ce que le pôle intérieur (3) est réalisé sous forme de composant moulé par injection de poudre et comprend une première zone (31) avec une première induction de saturation magnétique et une deuxième zone (32) avec une deuxième induction de saturation magnétique, qui est inférieure à la première induction de saturation magnétique, dans lequel la première zone et la deuxième zone sont matériellement assemblées l'une à l'autre.
  2. Soupape d'injection de carburant selon la revendication 1, dans laquelle il est prévu un assemblage soudé (30) ou un assemblage brasé entre le composant moulé par injection de poudre et le pôle intérieur (3).
  3. Soupape d'injection de carburant selon la revendication 1 ou 2, caractérisée en ce que le pôle intérieur (3) présente une ouverture de passage (6) en direction axiale (X-X).
  4. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que le pôle intérieur (3) est réalisé sous forme de composant moulé par injection de poudre et est fabriqué en un matériau avec une induction de saturation magnétique élevée, en particulier en FeCo avec une proportion de cobalt de 17 % à 50 %.
  5. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que la douille de soupape (4), l'élément de séparation magnétique (40) et le pôle intérieur (3) sont réalisés d'un seul tenant sous forme de composant moulé par injection de poudre (43) et sont matériellement assemblés l'un à l'autre.
  6. Soupape d'injection de carburant selon la revendication 5, caractérisée en ce que la douille de soupape (4) et le pôle intérieur (3) sont fabriqués en un matériau identique, en particulier en X2Cr13MoSi.
  7. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que la deuxième zone (32) du pôle intérieur (3) est fabriquée en un matériau magnétique résistant au carburant.
  8. Soupape d'injection de carburant selon la revendication 7, caractérisée en ce que la deuxième zone (32) forme une zone d'enveloppe (35) de l'ouverture de passage (6) et forme une zone de face frontale (36) du pôle intérieur (3), et la zone de face frontale (36) en particulier présente en direction axiale (X-X) une épaisseur de 0,5 mm.
  9. Soupape d'injection de carburant selon la revendication 8, caractérisée en ce que la zone de face frontale (36) forme une butée pour un induit magnétique (5).
  10. Soupape d'injection de carburant selon l'une quelconque des revendications 5 à 9, caractérisée en ce que la première zone (31) du pôle intérieur (3) présente une zone de bride périphérique (33) saillante en direction radiale.
  11. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément de séparation magnétique (40) est une bague périphérique.
  12. Soupape d'injection de carburant selon la revendication 11, caractérisée en ce qu'il est prévu un matériau résistant au carburant sur une zone d'enveloppe intérieure (46) de l'élément de séparation magnétique annulaire (40).
  13. Soupape d'injection de carburant selon l'une des revendications 11 ou 12, caractérisée en ce que l'élément de séparation magnétique (40) est réalisé sous forme de bobine d'étranglement magnétique, qui présente une première et une deuxième zones de raccordement magnétique (401, 402), une zone d'étranglement (405), et une première et une deuxième zones de transition (403, 404), dans laquelle la première et la deuxième zones de transition (403, 404) est disposée en direction axiale (X-X) entre la première et la deuxième zones de raccordement magnétique (401, 402) et la zone d'étranglement (405) est disposée entre la première et la deuxième zones de transition (403, 404).
  14. Soupape d'injection de carburant selon la revendication 13, caractérisée en ce que la première et la deuxième zones de transition (403, 404) vont en se rétrécissant.
  15. Soupape d'injection de carburant selon la revendication 13 ou 14, caractérisée en ce que la zone d'étranglement (405) présente une zone cylindrique intérieure et/ou extérieure (406) en un matériau magnétique conducteur de l'électricité.
  16. Soupape d'injection de carburant selon l'une quelconque des revendications 13 à 15, caractérisée en ce que la zone d'étranglement (405) est fabriquée en un matériau non conducteur de l'électricité.
EP12727637.6A 2011-08-03 2012-06-06 Soupape d'injection de carburant Not-in-force EP2739844B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080355A DE102011080355A1 (de) 2011-08-03 2011-08-03 Kraftstoffeinspritzventil
PCT/EP2012/060700 WO2013017320A1 (fr) 2011-08-03 2012-06-06 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP2739844A1 EP2739844A1 (fr) 2014-06-11
EP2739844B1 true EP2739844B1 (fr) 2015-10-21

Family

ID=46298395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12727637.6A Not-in-force EP2739844B1 (fr) 2011-08-03 2012-06-06 Soupape d'injection de carburant

Country Status (7)

Country Link
US (1) US9394867B2 (fr)
EP (1) EP2739844B1 (fr)
JP (1) JP5931194B2 (fr)
KR (1) KR101980066B1 (fr)
CN (1) CN103732906B (fr)
DE (1) DE102011080355A1 (fr)
WO (1) WO2013017320A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014209384A1 (de) * 2014-05-16 2015-11-19 Robert Bosch Gmbh Ventil mit einem magnetischen Aktor
DE102017116383A1 (de) 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Injektor zum Einspritzen von Krafstoff

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300437A1 (de) * 1982-11-10 1984-05-10 Robert Bosch Gmbh, 7000 Stuttgart Stelleinrichtung
GB8312693D0 (en) * 1983-05-09 1983-06-15 Darchem Ltd Composite metal articles
WO1989011090A1 (fr) 1988-05-06 1989-11-16 Jesma-Matador A/S Procede et systeme de manipulation de materiaux d'echantillon, utilises par exemple dans des installations de melange et servant a l'analyse centralisee des echantillons
DE4432525A1 (de) * 1994-09-13 1996-03-14 Bosch Gmbh Robert Verfahren zur Herstellung eines Magnetkreises für ein Ventil
JPH08284775A (ja) * 1995-04-11 1996-10-29 Aisan Ind Co Ltd インジェクタ
DE19639117A1 (de) * 1996-09-24 1998-03-26 Bosch Gmbh Robert Brennstoffeinspritzventil
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
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
JP2005030336A (ja) * 2003-07-09 2005-02-03 Denso Corp 電磁駆動装置およびそれを用いた燃料噴射弁
JP4104508B2 (ja) * 2003-08-26 2008-06-18 株式会社ケーヒン 電磁弁
JP2005089777A (ja) * 2003-09-12 2005-04-07 Aisin Seiki Co Ltd 複合焼結部材の製造方法
JP3895738B2 (ja) * 2004-07-09 2007-03-22 三菱電機株式会社 燃料噴射弁
DE102005052252A1 (de) 2005-11-02 2007-05-03 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102005061410A1 (de) * 2005-12-22 2007-06-28 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil
JP4211814B2 (ja) * 2006-07-13 2009-01-21 株式会社日立製作所 電磁式燃料噴射弁
ATE423902T1 (de) * 2006-12-12 2009-03-15 Magneti Marelli Powertrain Spa Elektromagnetisches kraftstoffeinspritzventil für eine brennkraftmaschine mit direkteinspritzung
JP2009127445A (ja) * 2007-11-20 2009-06-11 Denso Corp 燃料噴射弁
DE102009008458A1 (de) * 2009-02-11 2010-08-12 Svm Schultz Verwaltungs-Gmbh & Co. Kg Polrohr mit Metallverbindung
JP2010203375A (ja) * 2009-03-04 2010-09-16 Denso Corp 燃料噴射弁
DE102009055133A1 (de) * 2009-12-22 2011-06-30 Robert Bosch GmbH, 70469 Polkern für Magnetventile hergestellt mittels Mehrstoff-MIM
DE102010038437B4 (de) * 2010-07-27 2022-08-25 Robert Bosch Gmbh Magnetaktor und Verfahren zur Herstellung eines einstückigen Polkerns für einen Magnetaktor

Also Published As

Publication number Publication date
CN103732906A (zh) 2014-04-16
KR20140048955A (ko) 2014-04-24
KR101980066B1 (ko) 2019-05-21
DE102011080355A1 (de) 2013-02-07
CN103732906B (zh) 2017-09-08
JP2014521869A (ja) 2014-08-28
JP5931194B2 (ja) 2016-06-08
US20140224902A1 (en) 2014-08-14
WO2013017320A1 (fr) 2013-02-07
EP2739844A1 (fr) 2014-06-11
US9394867B2 (en) 2016-07-19

Similar Documents

Publication Publication Date Title
EP0975868B1 (fr) Soupape a commande electromagnetique
EP2557576B1 (fr) Armature magnétique
EP0886727B1 (fr) Soupape a commande electromagnetique
EP0862781B1 (fr) Soupape d'injection de carburant
EP1966483B1 (fr) Soupape a actionnement electromagnetique
DE10122353B4 (de) Brennstoffeinspritzventil
EP2313896B1 (fr) Élément composite métallique, en particulier pour une vanne électromagnétique
EP2742517B1 (fr) Induit magnétique pour soupape d'injection
WO2006063877A2 (fr) Dispositif comprenant un element a memoire de forme
WO1995016125A1 (fr) Soupape a commande electromagnetique
DE102010038437B4 (de) Magnetaktor und Verfahren zur Herstellung eines einstückigen Polkerns für einen Magnetaktor
EP2739844B1 (fr) Soupape d'injection de carburant
EP2855916A1 (fr) Injecteur de carburant
EP1327066B1 (fr) Soupape d'injection de carburant
DE102012210956A1 (de) Verfahren zur Herstellung eines Gehäuses, insbesondere eines Ventilgehäuses
EP1328720A2 (fr) Soupape d'injection de carburant
EP1309790B1 (fr) Soupape d'injection de carburant
DE102018200357A1 (de) Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil
EP2642494A2 (fr) Actionneur magnétique, vanne et utilisation d'un matériau dans des actionneurs magnétiques
DE10153627A1 (de) Brennstoffeinspritzventil

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140303

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F02M 61/16 20060101AFI20150612BHEP

Ipc: B22F 3/22 20060101ALI20150612BHEP

Ipc: H01F 3/10 20060101ALI20150612BHEP

Ipc: B22F 5/10 20060101ALI20150612BHEP

Ipc: C22C 33/02 20060101ALI20150612BHEP

Ipc: H01F 41/02 20060101ALI20150612BHEP

Ipc: H01F 7/08 20060101ALI20150612BHEP

Ipc: F02M 51/06 20060101ALI20150612BHEP

INTG Intention to grant announced

Effective date: 20150723

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: NL

Ref legal event code: MP

Effective date: 20151021

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 756778

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012005034

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160221

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160121

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160122

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160222

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012005034

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

26N No opposition filed

Effective date: 20160722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160606

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160606

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160606

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120606

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160606

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 756778

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170606

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180625

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151021

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20180921

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220822

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502012005034

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240103