EP2841760B1 - Ensemble comprenant un distributeur de combustible et plusieurs soupapes d'injection de combustible - Google Patents

Ensemble comprenant un distributeur de combustible et plusieurs soupapes d'injection de combustible Download PDF

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Publication number
EP2841760B1
EP2841760B1 EP13714602.3A EP13714602A EP2841760B1 EP 2841760 B1 EP2841760 B1 EP 2841760B1 EP 13714602 A EP13714602 A EP 13714602A EP 2841760 B1 EP2841760 B1 EP 2841760B1
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EP
European Patent Office
Prior art keywords
fuel injection
damping
composite element
outer side
damping composite
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.)
Active
Application number
EP13714602.3A
Other languages
German (de)
English (en)
Other versions
EP2841760A1 (fr
Inventor
Andreas Rehwald
Matthias Maess
Goekhan Guengoer
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
Priority to PL13714602T priority Critical patent/PL2841760T3/pl
Publication of EP2841760A1 publication Critical patent/EP2841760A1/fr
Application granted granted Critical
Publication of EP2841760B1 publication Critical patent/EP2841760B1/fr
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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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • 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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • 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
    • F02M2200/09—Fuel-injection apparatus having means for reducing noise
    • 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
    • F02M2200/8023—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of quick-acting mechanisms, e.g. clips
    • 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
    • F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws

Definitions

  • the invention relates to an arrangement, in particular a fuel injection system for high-pressure injection in internal combustion engines, with a fuel distributor and a plurality of fuel injection valves. Specifically, the invention relates to the field of fuel injection systems for mixture-compression, spark-ignition internal combustion engines, in which a direct injection of the fuel into combustion chambers takes place.
  • a fuel rail and a plurality of fuel injectors disposed on the fuel rail are known.
  • a collar-shaped element with tongues on both sides is joined around an upper fuel inlet nozzle.
  • a retaining clip is provided which engages around a cylindrical body of an injector connector from above along a longitudinal axis, wherein the tongues of the collar engage in openings of the retaining clip. This results in an attachment of the fuel injection valve to the cylindrical body of the injector port.
  • the from the EP 2 151 572 A2 known embodiment has the disadvantage that the fuel rail can be excited in operation to oscillations in the audible frequency range. This happens especially by noise sources in the fuel injection valves.
  • the structure-borne sound propagates from the fuel injection valves via the injector connections, the fuel distributor rail and the rail holders, if necessary, to the mounting structure, from where disturbing noises are radiated. Under certain circumstances, these disturbing noises can even penetrate into the interior of the vehicle.
  • the mounting structure to which the fuel rail is attached this may be, for example, the cylinder head.
  • the arrangement according to the invention with the features of claim 1 has the advantage that an improved vibration damping is ensured. Specifically, there is the advantage that vibrations, which arise in particular in the field of fuel injection valves, can be effectively damped with respect to a transmission to the fuel distributor and disturbing noises are reduced.
  • the arrangement is suitable for internal combustion engines for gasoline direct injection.
  • the fuel distributor can in this case be configured in particular as a fuel distributor strip.
  • the fuel distributor serves to store high-pressure fuel and to distribute the fuel to the fuel injection valves, in particular high-pressure injection valves.
  • the fuel injection valves inject the fuel necessary for the combustion process under high pressure into the respective combustion chamber.
  • the fuel is in this case compressed via a high-pressure pump and quantity-controlled conveyed via a high-pressure line in the fuel distributor.
  • the arrangement may be configured in an advantageous manner as a fuel injection system.
  • the fuel distributor can be suitably connected to a mounting structure.
  • the mounting structure may be the cylinder head of the internal combustion engine.
  • the fuel injectors can be hung on the cups, so to speak. In this case, in particular a gimbal attachment to the cups is possible.
  • the headband may be configured in particular as a U-shaped headband. About the headband quasi-static forces can be transferred for attachment. This also ensures that the relative deflection of the fuel injection valves with respect to the cups under the action of operating forces remains below a defined limit to protect sealing elements, such as an O-ring seal from wear.
  • the damping composite element furthermore achieves a vibration-related decoupling and damping between the fuel injection valves and the fuel distributor, the other requirements still being guaranteed.
  • the attachment via a headband and an associated damping composite element is provided in each fuel injection valve.
  • the damping composite element between the bracket portion of the retaining clip and the outside of the fuel injection valve is arranged.
  • a recess is configured, in which the bracket portion of the retaining clip is inserted.
  • a positive connection between the bracket section and the cup is thereby achieved in the mounted state.
  • an indirect investment is realized via the damping composite element.
  • vibrations are damped.
  • the fuel injection valve can be excited to vibrate due to the rapid repetitive activation.
  • a transmission of these vibrations to the cup is damped by the damping composite element.
  • a support surface is formed, which is inclined in an axial cross section with respect to the longitudinal axis of the fuel injection valve, that a first outer side of the damping composite element cooperates with the support surface on the first outer side of the fuel injection valve and that one of the first outer side facing away from the second outer side of the damping composite element with the strap portion of the retaining clip cooperates.
  • the outer side of the fuel injection valve is conical and that the first outer side of the damping composite element bears against the conical outer side of the fuel injection valve.
  • the damping composite element may in this case have a flat or rectangular profile.
  • the largest possible possible contact of the damping composite element is achieved on the outside of the fuel injection valve. This allows a more uniform loading of the damping layer, resulting in a good damping effect.
  • this can be advantageously determined the position of the damping element relative to the fuel injection valve. This simplifies the assembly and the damping effect is ensured over the lifetime. A tolerance compensation with respect to the headband is thereby ensured.
  • the bow section of the retaining clip has an elliptical or circular cross section. It is also advantageous that the second outer side of the damping composite element at least partially rests against the bracket section. As a result, the position of the damping composite element with respect to the bracket portion can be determined. In operation, this prevents a shift of the damping composite element relative to the bracket portion of the retaining clip. In addition, a point or linear load and thus surface pressure between the damping composite element and the headband is avoided. Furthermore, a tolerance compensation for the positioning of the fuel injection valve is made possible relative to the headband and the damping composite element.
  • the damping composite element has at least one metal layer which is connected to the damping layer.
  • the damping layer may for example be formed of a viscoelastic material.
  • the metal layer may be formed of a metal sheet.
  • the damping layer may be suitably connected to the metal layer.
  • the damping layer is directly connected to the metal layer. In this case, a connection by vulcanization is possible.
  • the damping layer is based on a rubber material.
  • the term rubber material is to be understood generally and includes not only a natural rubber but also synthetic rubber materials.
  • At least one damping layer is designed as an external damping layer.
  • the outer damping layer can in this case lie directly against the fuel injector or directly to the bracket portion of the retaining clip.
  • An embodiment of the damping composite element with two outer damping layers which form the first outer side and the second outer side of the damping composite element is also possible.
  • At least one further metal layer is provided, and that at least one damping layer is arranged between the metal layer and the further metal layer.
  • at least one damping layer is arranged between the metal layer and the further metal layer.
  • the damping composite element is designed as a partial annular damping composite element, that the damping composite element has end sections and an arc section connecting the end sections, and that the damping composite element is configured with a greater width at its end sections than at its arc section.
  • the end portions thus broad contact areas can be guaranteed, where an effective damping is achieved.
  • the arc section allows a high degree of flexibility of the damping composite element, since this is made comparatively narrow.
  • a U-shaped headband can thus be achieved on the two strap portions of the retaining clip damping over the wide end portions, while the narrow arc portion of the damping composite element allows tolerance compensation.
  • Fig. 1 shows an arrangement 1 with a fuel distributor 2 and a plurality of fuel injection valves 3, 4 in a schematic sectional view.
  • the arrangement 1 can serve in particular as a fuel injection system for high-pressure injection in internal combustion engines.
  • the fuel distributor 2 can be attached to a mounting structure 7, in particular a cylinder head 7, at predetermined attachment points via holders 5, 6 or the like.
  • the fuel distributor 2 is designed in this embodiment as a fuel distributor strip 2 with an elongated, in particular tubular, base body.
  • a high-pressure line 8 is connected, is guided through the fuel in the high pressure fuel in the fuel distributor 2 during operation.
  • the fuel distributor 2 has a plurality of cups 9, 10. On the cup 9, the fuel injection valve 3 is arranged. On the cup 10, the fuel injection valve 4 is arranged. The fuel injection valves 3, 4 are not directly, but only indirectly connected to the cups 9, 10 of the fuel distributor 2. The mechanical power transmission takes place in each case by means of a damping composite element 11, 12. In the Fig. 1 is schematically illustrated the power transmission path. The structural design of the connection between the fuel distributor 2 and the fuel injection valves 3, 4th according to the first embodiment is described below with reference to the Fig. 2 described in more detail.
  • Fig. 2 shows an excerpt, schematic section of the in Fig. 1 illustrated arrangement 1 according to the first embodiment.
  • the fuel injection valve 3 is partially inserted into the cup 9.
  • a longitudinal axis 15 of the fuel injection valve 3 in this case preferably extends centrally through the cup 9.
  • a retaining clip 16 is mounted on the cup 9 in the inserted state.
  • a bracket portion 17 of the retaining clip 16 is then between an inner side 18 of the cup 9 and without direct contact with an outer side 19 of the fuel injection valve 3.
  • the damping composite element 11 between the bracket portion 17 of the retaining clip 16 and the outer side 19 of the fuel injection valve third arranged.
  • the damping composite element 11 has metal layers 20, 21 and a damping layer 22.
  • the damping layer 22 is in this case arranged between the metal layers 20, 21.
  • the damping layer 22 may in this case be connected to the metal layers 20, 21.
  • the damping layer 22 is advantageously protected from the environment and against abrasion.
  • a support surface 25 is configured on the outer side 19 of the fuel injection valve 3.
  • the support surface 25 is inclined in an axial cross section with respect to the longitudinal axis 15 of the fuel injection valve 3.
  • the support surface 25 may be configured as a conical support surface 25.
  • the damping composite element 11 has a first outer side 26 and a second outer side 27, which are remote from each other.
  • the first outer side 26 of the damping composite element 11 cooperates with the support surface 25 of the outer side 19 of the fuel injection valve 3.
  • the damping composite element 11 lies with its first outer side 26 flat against the support surface 25 of the fuel injection valve 3.
  • a local positioning of the damping composite element 11 is ensured relative to the fuel injection valve 3.
  • the second outer side 27 of the damping composite element 11 cooperates with the bow section 17 of the retaining clip 16.
  • the bracket portion 17 of the retaining clip 16 has an at least approximately circular cross-section.
  • the cross section of the bracket portion 17 may also be configured at least approximately elliptical.
  • On the inside 18 of the Cup 9 is a recess 28 configured, in which the bracket portion 17 of the retaining clip 16 is inserted.
  • Fig. 3 shows the in Fig. 2 illustrated section of the arrangement 1 with the fuel injection valve 3, the cup 9 of the fuel distributor 2, the headband 16 and the damping composite element 11 according to a second embodiment.
  • the damping composite element 11 is arranged between the bow section 17 of the retaining clip 16 and the outer side 19 of the fuel injection valve 3 such that the damping composite element 11 is supported in part on the support surface 25 and partly on a cylinder jacket-shaped part 29 of the outer side 19.
  • the damping composite element 11 is designed bent in profile seen.
  • the second outer side 27 of the damping composite element 11 is namely at least partially against the strap portion 17 of the retaining clip 16.
  • Fig. 4 shows that in Fig. 2 illustrated damping composite element 11 in a schematic sectional view according to a third embodiment.
  • the damping composite element 11 consists of a metal layer 20 and a damping layer 22.
  • the damping layer 22 is connected to the metal layer 20.
  • the first outer side 26 of the damping composite element 11 may be provided on the cushioning layer 22 while the second outer side 27 is provided on the metal layer 20.
  • the damping layer 22 abuts against the support surface 25 of the outer side 19 of the fuel injection valve 3.
  • the damping composite element 11 can also be designed bent, as it is based on the Fig. 3 is illustrated.
  • Fig. 5 shows that in Fig. 4 illustrated damping composite element 11 in a schematic sectional view according to a fourth embodiment.
  • the damping composite element 11 has a metal layer 20 and damping layers 22, 23.
  • the first outer side 26 of the damping composite element 11 is formed on the damping layer 22.
  • the second outer side 27 is formed on the damping layer 23.
  • the damping layers 22, 23 are outside, while the metal layer 20 is located inside.
  • Fig. 6 shows that in Fig. 4 illustrated damping composite element 11 in a schematic sectional view according to a fifth embodiment.
  • the damping composite element 11 consists of two metal layers 20, 21 and two damping layers 22, 23.
  • the damping layer 23 is located between the metal layers 20, 21.
  • the metal layer 20 is located between the damping layers 22, 23.
  • the damping layer 22 serves as an external Damping layer 22, while the damping layer 23 serves as an internal damping layer 23.
  • the metal layer 21 serves as the outer metal layer 21, while the metal layer 20 serves as the inner metal layer 20.
  • the first outer side 26 may be formed on the damping layer 22.
  • the second outer side 27 is formed on the metal layer 21 in this case.
  • a reverse embodiment is also conceivable.
  • damping composite elements 11 which in the 4 to 6 are shown in profile, as it is also based on the Fig. 2 and 3 the case is. Starting from this profile, numerous modifications are conceivable. In particular, bending or the configuration of bending edge at one or more locations and / or about one or more axes are possible. A further adaptation of the geometry of the damping composite element 11 is based on Fig. 7 described in more detail.
  • Fig. 7 shows the cup 9, the headband 16 and the damping composite element 11 of an arrangement 1 in a partial, schematic sectional view accordingly a sixth embodiment.
  • the headband 16 is designed as a U-shaped headband 16.
  • the headband 16 has bow sections 17, 17A.
  • the cup 9 has suitable recesses 30, 31, 32, 33, through which the headband 16 can be pushed into the cup 9 to a certain extent.
  • the recesses 30 to 33 may be realized for example by drilling.
  • the two strap sections 17, 17A are preferably oriented parallel to one another.
  • the damping composite element 11 is configured in this embodiment as a partial annular damping composite element 11.
  • the damping composite element 11 has end sections 34, 35.
  • the damping composite element 11 has an arc portion 36 which connects the end portions 34, 35 with each other.
  • the damping composite element 11 is configured at its end portions 34, 35 with a greater width than at its arc portion 36.
  • the end portions 34, 35 are thus configured as widened end portions 34, 35, the wide bearing areas 34, 35 for one hand, the fuel injection valve 3 and the other Ironing sections 17, 17A form.
  • the arc portion 36 forms in comparison to a narrow arc portion 36 as a connecting part (spine).
  • a damping composite element 11 can be selected in a adapted to the particular application embodiment.
  • one or more metal layers 20, 21 and one or more damping layers 22, 23 are provided.
  • an annular or semi-annular configuration is possible.
  • the damping layers 22, 23 may be configured as viscoelastic damping layers 22, 23.
  • the damping layers 22, 23 are preferably designed as thin viscoelastic damping layers 22, 23.
  • the respective intermediate damping layer 22, 23 is dynamically stressed, so that a high proportion of vibration energy is dissipated by the material damping ,
  • the damping layer 22, 23 may be formed of an elastomer here.
  • the dissipation of body sound energy thus leads to a damping of vibration modes of the fuel injection valves 3, 4 and the fuel distributor 2 and thus to a reduction of all body sound components that are transmitted through this layer.
  • This property enables a decoupling or isolation between the fuel injection valves 3, 4 and the fuel distributor 2. Pure metal contacts, via a structure-borne sound transmission would be possible, thus prevented from the outset become. Because the mechanical forces are always transmitted through a damping layer 22, 23.
  • the properties of the damping layer 22, 23, such as a thickness or material-specific properties, may be adjusted with respect to some optimization parameters. Optimization parameters here are above all the frequency contents to be damped and the temperature, in particular the operating temperature.
  • Noises of the fuel distributor 2 are reduced.
  • a relatively rigid connection of the fuel injection valves 3, 4 can be maintained despite the decoupling.
  • the compliance for the fuel injection valves 3, 4 increases only slightly, all functional requirements, in particular a small relative movement, and strength requirements, in particular the wear of an O-ring, are met.
  • acoustic, functional and strength requirements resulting from the design of the fuel injection valves 3, 4 and the fuel distributor 2 can be simultaneously satisfied.
  • the noise damping can be realized in an advantageous manner with a fixation by means of retaining bracket 16.
  • damping layers 22, 23 can be firmly vulcanized as elastomer layers 22, 23 between the metal layers 20, 21 and thus protected from abrasion.
  • the assembly effort is low, since the damping composite elements 11, 12 only have to be inserted before the assembly of the fuel injection valves 3, 4.
  • the decoupling can be realized on a line-connected design of the fuel distributor 2 by the damping composite elements 11, 12 are used at the joint between the suspended fuel injection valves 3, 4 and a functional block for the fuel distributor 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (11)

  1. Agencement (1), en particulier installation d'injection de carburant pour l'injection à haute pression dans des moteurs à combustion interne, comprenant un distributeur de carburant (2) et plusieurs soupapes d'injection de carburant (3, 4), chacune des soupapes d'injection de carburant (3, 4) étant disposée au niveau d'une coupelle (9, 10) du distributeur de carburant (2) et au moins l'une des soupapes d'injection de carburant (3, 4) étant fixée par un étrier de retenue (16) à la coupelle associée (9), au moins un élément de liaison à amortissement (11) étant prévu, lequel présente au moins une couche d'amortissement déformable élastiquement (22),
    caractérisé en ce que
    l'étrier de retenue (16) présente au moins une portion d'étrier (17) qui est disposée entre un côté intérieur (18) de la coupelle (9) et un côté extérieur (19) de la soupape d'injection de carburant (3), l'étrier de retenue (16) étant réalisé en forme de U et au moins la portion d'étrier (17) de l'étrier de retenue (16) présentant une section transversale au moins approximativement elliptique ou au moins approximativement circulaire et l'au moins un élément de liaison à amortissement (11) étant disposé entre la portion d'étrier (17) de l'étrier de retenue (16) et le côté extérieur (19) de la soupape d'injection de carburant (3).
  2. Agencement selon la revendication 1,
    caractérisé en ce
    qu'un évidement (28) est réalisé au niveau du côté intérieur (18) de la coupelle, dans lequel est introduite la portion d'étrier (17) de l'étrier de retenue (16).
  3. Agencement selon la revendication 1 ou 2,
    caractérisé en ce
    qu'une surface de support (25) est réalisée au niveau du côté extérieur (19) de la soupape d'injection de carburant (3), laquelle est inclinée en section transversale axiale par rapport à un axe longitudinal (15) de la soupape d'injection de carburant (3), en ce qu'un premier côté extérieur (26) de l'élément de liaison à amortissement (11) coopère avec la surface de support (25) au niveau du côté extérieur (19) de la soupape d'injection de carburant (3) et en ce qu'un deuxième côté extérieur (27) de l'élément de liaison à amortissement (11), opposé au premier côté extérieur (26), coopère avec la portion d'étrier (17) de l'étrier de retenue (16).
  4. Agencement selon la revendication 3,
    caractérisé en ce que
    la surface de support (25) de la soupape d'injection de carburant (3) est configurée sous forme conique et en ce que le premier côté extérieur (26) de l'élément de liaison à amortissement (11) s'applique au moins essentiellement contre la surface de support conique (25) de la soupape d'injection de carburant (3).
  5. Agencement selon la revendication 3,
    caractérisé en ce que
    le deuxième côté extérieur (27) de l'élément de liaison à amortissement (11) s'applique au moins en partie contre la portion d'étrier (17).
  6. Agencement selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce
    qu'un transfert de force mécanique s'effectue par le biais de la fixation mécanique entre la soupape d'injection de carburant (3) et la coupelle associée (9) toujours par le biais de la couche d'amortissement (22) de l'élément de liaison à amortissement (11).
  7. Agencement selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    l'élément de liaison à amortissement (11) présente au moins une couche métallique (20) qui est assemblée à la couche d'amortissement (22).
  8. Agencement selon la revendication 7,
    caractérisé en ce
    qu'au moins une couche d'amortissement (22, 23) est réalisée sous forme de couche d'amortissement extérieure (22, 23).
  9. Agencement selon la revendication 7 ou 8,
    caractérisé en ce
    qu'au moins une couche métallique supplémentaire (21) est prévue et en ce qu'au moins une couche d'amortissement (22, 23) est disposée entre la couche métallique (20) et la couche métallique supplémentaire (21).
  10. Agencement selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    l'élément de liaison à amortissement (11) est réalisé sous forme d'élément de liaison à amortissement sous forme de bague partielle (11), et en ce que l'élément de liaison à amortissement (11) présente des portions d'extrémité (34, 35) et une portion d'arc (36) reliant les portions d'extrémité (34, 35).
  11. Agencement selon la revendication 10,
    caractérisé en ce que
    l'élément de liaison à amortissement (11) est réalisé au niveau de ses portions d'extrémité (34, 35) avec une plus grande largeur qu'au niveau de sa portion d'arc (36).
EP13714602.3A 2012-04-26 2013-03-27 Ensemble comprenant un distributeur de combustible et plusieurs soupapes d'injection de combustible Active EP2841760B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13714602T PL2841760T3 (pl) 2012-04-26 2013-03-27 Układ z jednym rozdzielaczem paliwa i wieloma zaworami wtryskowymi paliwa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012206896A DE102012206896A1 (de) 2012-04-26 2012-04-26 Anordnung mit einem Brennstoffverteiler und mehreren Brennstoffeinspritzventilen
PCT/EP2013/056582 WO2013160064A1 (fr) 2012-04-26 2013-03-27 Ensemble comprenant un distributeur de combustible et plusieurs soupapes d'injection de combustible

Publications (2)

Publication Number Publication Date
EP2841760A1 EP2841760A1 (fr) 2015-03-04
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EP (1) EP2841760B1 (fr)
KR (1) KR102109319B1 (fr)
CN (1) CN104254684B (fr)
DE (1) DE102012206896A1 (fr)
ES (1) ES2731098T3 (fr)
PL (1) PL2841760T3 (fr)
WO (1) WO2013160064A1 (fr)

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DE102017220328A1 (de) * 2017-11-15 2019-05-16 Robert Bosch Gmbh Schwingungsdämpfungsanordnung für Einspritzanlagen von Kraftfahrzeugen, insbesondere für Brennstoffeinspritzsysteme, und Einspritzanlage mit solch einer Schwingungsdämpfungsanordnung
DE102020202949A1 (de) * 2020-03-09 2021-09-09 Robert Bosch Gesellschaft mit beschränkter Haftung Brennstoffeinspritzvorrichtung
JP7476827B2 (ja) * 2021-03-12 2024-05-01 トヨタ自動車株式会社 燃料噴射装置用制振インシュレータ

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Publication number Publication date
KR102109319B1 (ko) 2020-05-12
WO2013160064A1 (fr) 2013-10-31
ES2731098T3 (es) 2019-11-14
CN104254684A (zh) 2014-12-31
CN104254684B (zh) 2017-12-15
KR20150003750A (ko) 2015-01-09
US20150068497A1 (en) 2015-03-12
EP2841760A1 (fr) 2015-03-04
US10041460B2 (en) 2018-08-07
PL2841760T3 (pl) 2019-08-30
DE102012206896A1 (de) 2013-10-31

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