EP2841761B1 - Ensemble comprenant une rampe de distribution de carburant et plusieurs soupapes d'injection de carburant - Google Patents

Ensemble comprenant une rampe de distribution de carburant et plusieurs soupapes d'injection de carburant Download PDF

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Publication number
EP2841761B1
EP2841761B1 EP13715934.9A EP13715934A EP2841761B1 EP 2841761 B1 EP2841761 B1 EP 2841761B1 EP 13715934 A EP13715934 A EP 13715934A EP 2841761 B1 EP2841761 B1 EP 2841761B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
cup
damping
injection valve
fuel
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
EP13715934.9A
Other languages
German (de)
English (en)
Other versions
EP2841761A1 (fr
Inventor
Jens Pohlmann
Michael Fischer
Martin Riemer
Markus Friedrich
Andreas Rehwald
Michael Mayer
Dietmar Uhlenbrock
Venkatesh Kannan
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
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Publication of EP2841761A1 publication Critical patent/EP2841761A1/fr
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Publication of EP2841761B1 publication Critical patent/EP2841761B1/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—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
    • 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.
  • a fuel rail with multiple fuel injection valves known.
  • a collar is placed around a puncture on the respective fuel injection valve, wherein tongues are configured on the collar.
  • An injector port on the fuel rail has a cylindrical body into which the upper end of the fuel injector is joined.
  • a headband is fitted over the cylindrical body, wherein recesses in the headband cooperate with the tongues of the collar.
  • the from the EP 2 151 572 A2 known embodiment has the disadvantage that the fuel rail is excited in operation to oscillations in the audible frequency range. This happens mainly due to noise sources in the fuel injection valves.
  • the structure-borne sound propagates from the fuel injection valves via the cylindrical bodies of the injector connections, the fuel distributor rail and rail holder or the like onto the mounting structure, from where disturbing noises are emitted. Under certain circumstances, these disturbing noises can even penetrate into the interior of the vehicle.
  • the cylinder head can serve.
  • the arrangement according to the invention with the features of claim 1 has the advantage that a vibration control decoupling or damping between the fuel injection valves and the fuel distributor is made possible. Specifically, there is the advantage that occurring noise emissions can be 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 can serve for distributing the fuel to a plurality of fuel injection valves, in particular high-pressure injection valves.
  • the fuel distributor can serve as a common fuel storage for the fuel injection valves.
  • the fuel injection valves are connected to the fuel distributor and inject the fuel required for the combustion process under high pressure, preferably directly into the combustion chambers of the internal combustion engine.
  • 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 attachment of the fuel distributor to a mounting structure, in particular a cylinder head of the internal combustion engine, can be done directly or else via spacers and optionally further connecting elements.
  • the fuel injectors may be attached to the cups as suspended fuel injectors.
  • the holding element for the connection can in this case form a latching connection on the one hand with the cup and on the other hand with the fuel injection valve.
  • a part-annular shoulder of the cup may be configured in the form of a nose or a collar. Accordingly, a collar is provided on the fuel injection valve in an advantageous manner.
  • the retaining element fulfills the function that the relative deflection of the fuel injection valve relative to the associated cup under the action of operating forces remains below a defined limit, whereby, for example, an O-ring seal or a Teflon-ring seal are protected from damage and wear.
  • the contact surface of the cup and the contact surface of the fuel injection valve are remote from each other. Furthermore, it is advantageous that the contact surface of the cup and the support surface of the cup are remote from each other.
  • the retaining clip can be configured in an advantageous manner as a U-shaped retaining clip. During assembly, the retaining clip can then be clipped onto the cup and fuel injector inserted into the cup, as it were. As a result, a reliable connection is formed, wherein the assembly can be carried out in a simple manner.
  • an at least partially annular shoulder of the cup is designed on the outside of the cup, on which the contact surface of the cup is designed.
  • the at least partially annular paragraph may be configured as an annular paragraph or as a part-annular paragraph. Accordingly, it is advantageous that on the fuel injection valve, an at least partially annular collar is configured, on which the contact surface of the fuel injection valve and a support surface of the cup facing support surface are configured.
  • the at least partially annular collar can be configured as a partial annular collar or as an annular collar.
  • a partial ring-shaped embodiment of the paragraph of the cup or the Federal of the fuel injection valve also several paragraphs or frets may be provided on which a plurality of retaining clips are attached. The number of retaining elements designed as retaining clips, which fasten a fuel injection valve to an associated cup of the fuel distributor, can be selected with reference to the respective application.
  • At least one of the damping composite elements has a bent outer portion which engages around an outer side of the federal government. As a result, contact between the outside of the collar and the retaining clip is reliably prevented. Accordingly, it is advantageous that at least one of the damping composite elements is designed as an at least approximately planar damping composite element and projects beyond an outside of the collar. This guarantees a certain distance between the retaining clip and the outside of the collar.
  • At least one of the damping composite elements is configured as a ring-shaped or partially annular damping composite element.
  • a homogeneous loading of the damping composite element can be achieved.
  • Particularly advantageous in this regard is an annular configuration of the damping composite elements. If this is not possible, for example for assembly reasons, to circumvent a plug, for example, then a part-circular contour, for example in the form of a C-ring, can be selected.
  • the damping composite element between the support surface of the fuel injection valve and the support surface of the cup is arranged. It is also advantageous that a first damping composite element between the fuel injection valve and the support surface of the cup is arranged and that a second damping composite element between the contact surface of the fuel injection valve and the retaining clip is arranged.
  • a direct contact of metal on metal is avoided by always a damping composite element is interposed in the mechanical power transmission path. This results in a particularly effective vibration damping.
  • the retaining clip is configured from a composite element with at least one metallic metal layer and at least one damping layer.
  • the retaining clip can then be made by reshaping the composite sheet.
  • the composite metal sheet may, for example, have a layer structure of two metal layers and an elastically deformable layer located therebetween, in particular an elastomer layer.
  • the structure for vibration decoupling may possibly also be simplified, the retaining clip formed from the composite sheet permitting the insulation effect by virtue of its inherent component damping.
  • the retaining clip may also be formed of a rigid material.
  • the damping composite element is advantageously configured from at least one metal layer and at least one damping layer. Numerous variants are conceivable here, which differ among other things in the number of layers.
  • Fig. 1 shows an arrangement 1 with a fuel distributor 2 and a plurality of fuel injection valves 3, 4.
  • the fuel distributor 2 may be configured in particular as a fuel distributor rail.
  • the fuel distributor 2 serves to store high-pressure fuel and to distribute the fuel to the plurality of fuel injection valves 3, 4. For simplicity of illustration, only two fuel injection valves 3, 4 are shown in this embodiment.
  • the number of fuel injection valves 3, 4 connected to the fuel distributor 2 depends on the number of cylinders of the internal combustion engine.
  • the fuel distributor 2 is suitably connected to a mounting structure 5, in particular a cylinder head 5.
  • the connection of the fuel distributor 2 can also be made via spacers or via further connecting elements 6, 7.
  • a high pressure line 8 is provided with the the fuel distributor 2 is connected.
  • the high-pressure line 8 serves to supply high-pressure fuel into the fuel distributor 2.
  • Fig. 1 shows a schematic arrangement in which the damping composite elements 11, 12 are connected between the fuel injection valves 3, 4 and the associated cups 9, 10.
  • the configuration of the decoupling and the connection between the fuel injection valves 3, 4 and the associated cup 9, 10 is based on the Fig. 2 described in more detail.
  • Fig. 2 shows the fuel injection valve 3 and the cup 9 of the fuel distributor 2 in Fig. 1 illustrated arrangement 1 according to the first embodiment in a partial, schematic sectional view.
  • the fuel injection valve 3 has a longitudinal axis 15.
  • the cup 9 has an underside 16, which forms a support surface 17 in this embodiment.
  • the support surface 17 may also be configured in other ways on the bottom 16.
  • a contact surface 21 is designed, which is oriented perpendicular to the longitudinal axis 15 in this embodiment.
  • the contact surface 19 of the cup 9 and the contact surface 21 of the fuel injection valve 3 are remote from each other.
  • a ring-shaped or partially annular shoulder 22 of the cup 9 is configured, on which the contact surface 19 of the cup 9 is configured.
  • an annular or partially annular collar 23 is configured on the fuel injection valve 3, on which the contact surface 21 of the fuel injection valve 3 is configured.
  • a support surface is also configured.
  • the support surface 17 of the cup 9 and the support surface 24 of the fuel injection valve 3 are each oriented perpendicular to the longitudinal axis 15 in this embodiment. Further, the support surface 17 of the cup 9 and the support surface 24 of the fuel injection valve 3 face each other.
  • the damping composite element 11 is arranged between the support surface 17 of the cup 9 and the support surface 24 of the fuel injection valve 3, the damping composite element 11 is arranged.
  • the damping composite element 11 is in this embodiment as a flat Damping composite element 11 configured.
  • the damping composite element 11 has metal layers 25, 26, each based on a metallic material. Between the metal layers 25, 26 a damping layer 27 of the damping composite element 11 is provided.
  • the damping layer 27 may be made of a rubber, in particular a natural rubber or a synthetic rubber.
  • the damping layer 27 may in particular be connected to the metal layers 25, 26 by vulcanization. As a result, a multi-layered design of the damping composite element 11 is possible. Direct contact between the metal layers 25, 26 is thereby prevented by the damping layer 27.
  • the damping layer 27 is arranged, as also schematically with reference to Fig. 1 is shown.
  • the arrangement 1 also has a retaining element 30 configured as a retaining clip 30.
  • the retaining clip 30 is formed in this embodiment of a rigid material, in particular a metal.
  • the retaining clip 30 engages on the one hand the contact surface 19 of the cup 9 and on the other hand, the contact surface 21 of the fuel injection valve 3.
  • the retaining clip 30 acts on the collar 30 of the fuel injection valve 3 against the bottom 16 of the cup 9.
  • the retaining clip 30 can, for example, in a mounting direction 31 on the Paragraph 22 of the cup 9 and the collar 23 of the fuel injection valve 3 are clipped when the fuel injection valve 3 is partially joined in its end position in the cup 3.
  • a certain bias on the damping composite element 11 and thus the damping layer 27 are exercised.
  • an acoustic decoupling can be realized by the damping composite element 11.
  • the connection of the fuel injection valve 4 is configured with the fuel distributor 2.
  • Fig. 3 shows the in Fig. 2 shown section of an arrangement 1 according to a second embodiment of the invention.
  • a further damping composite element 13 is disposed between the abutment surface 21 of the collar 23 of the fuel injection valve 3 and the retaining clip 30.
  • the damping composite element 13 has a configuration corresponding to the damping composite element 11.
  • the damping composite element 13 comprises metal layers 35, 36 and a damping layer 37, which is arranged between the metal layers 35, 36.
  • contacts of metal on metal over which a structure-borne sound transmission is still possible, completely prevented.
  • there are no pure metal contacts and there is a full isolation in contrast to the basis of the Fig. 2 described second embodiment and between the retaining clip 30 and the collar 23, a damping composite element 13 is provided or inserted.
  • a first of the damping composite elements 11, 13, namely the damping composite element 11, disposed between the fuel injection valve 3 and the support surface 17 of the cup 9 and a second of the damping composite elements 11, 13, namely the damping composite element 13 is between the contact surface 21 of the Fuel injection valve 3 and the retaining clip 30 is arranged.
  • the two damping composite elements 11, 13 configured as a flat damping composite elements 13.
  • the damping composite elements 13 are in each case via an outer side 38 of the collar 23 of the fuel injection valve 3 via. As a result, a spacing of the retaining clip 30 is always ensured by the outer side 38 of the collar 23.
  • Fig. 4 shows the in Fig. 2 shown section of an arrangement 1 according to a third embodiment.
  • a damping composite element 11 between the support surface 24 of the collar 23 and the support surface 17 of the cup 9 is arranged.
  • the retaining clip 30 is made of a composite metal sheet with metal layers 39, 40 and an arranged between the metal layers 39, 40 damping layer 41.
  • the retaining clip 30 can be made directly from a flat composite sheet by forming.
  • the retaining clip 30 then allows inherent component damping to allow the isolation effect. As a result, an acoustically completely decoupled connection of the fuel injection valve 3 with the cup 9 of the fuel distributor 3 is possible.
  • Fig. 5 shows the in Fig. 2 shown section of an arrangement 1 according to a fourth embodiment.
  • the damping composite element 11 has a bent outer portion 42, which the Outside 38 of the collar 23 surrounds.
  • the damping composite element 13 on a bent outer portion 43 which engages around the outer side 38 of the collar 23.
  • the bent outer portions 42, 43 of the damping composite elements 11, 13 ensure a distance between the retaining clip 30 and the outer side 38 of the collar 23. Even with a direct concern of the retaining clip 30 on the bent outer portions 42, 43 of the damping composite elements 11, 13 and the bent outer sections 42, 43 on the outer side 38 of the collar 23 thus a radial decoupling between the fuel injection valve 3 and the retaining clip 30 is ensured. As a result, an acoustically completely decoupled connection between the fuel injection valve 3 and the cup 9 is ensured.
  • the damping composite elements 11, 12, 13 each have at least one metal layer 25, 26 and at least one damping layer 27.
  • a preferred embodiment consists of exactly two metal layers 25, 26 and an interposed damping layer 27.
  • the preferred embodiment is also in the embodiment of the retaining clip 30, as it is based on the Fig. 4 described is advantageous. Further possible embodiments of the damping composite elements 11, 12, 13 and / or the retaining clip 30 are described below with reference to FIG Fig. 6 to 8 described. In this case, suitable deformations, in particular suitable bends, are possible.
  • Fig. 6 shows a damping composite element 11 for in Fig. 1 illustrated arrangement 1 according to a fifth embodiment in a schematic sectional view.
  • the damping composite element 11 is formed of a metal layer 25 and a damping layer 27.
  • the damping layer 27, for example, the support surface 24 of the collar 23 or the support surface 17 of the cup 9 may be assigned.
  • Fig. 7 shows a damping composite element 11 according to a sixth embodiment in a schematic sectional view.
  • the damping composite element 11 is formed from a metal layer 25 and damping layers 27, 28.
  • the metal layer 25 is arranged in this embodiment between the damping layers 27, 28.
  • the damping layers 27, 28 serve as external damping layers 27, 28. In this way, an advantageous adaptation to the contact partners and optionally a tolerance compensation is possible.
  • Fig. 8 shows a damping composite element 11 according to a seventh embodiment in a schematic sectional view.
  • the damping composite element 11 consists of metal layers 25, 26 and damping layers 27, 28.
  • the damping layer 27 serves as the outer damping layer 27.
  • the metal layer 25 is arranged between the damping layers 27, 28 and serves as an inner metal layer 25.
  • the damping layer 28 is between the two Metal layer 25, 26 arranged and serves as an inner damping layer 28.
  • the metal layer 26 serves as an outer metal layer 26.
  • a multi-layered design of the retaining clip 30 can be realized. Furthermore, embodiments of the damping composite elements 11, 12, 13 and / or the retaining clip 30 of five or more layers are possible, with alternate metal and damping layers.
  • a partial or complete decoupling of the fuel injection valves 3, 4 from the fuel distributor 2 is possible. This results in a significant reduction in structure-borne sound transmission in the fuel distributor 2 and thus in the mounting structure 5 while fulfilling the functional and strength requirements.
  • a noise emission of the fuel distributor 2 thus decreases.
  • the damping layers 27, 28, 37, 41 may in particular be formed from an elastomer and be connected by vulcanization to the metal layers 25, 26, 35, 36, 39, 40. Specifically, a compound by vulcanization is possible. In addition, an inner damping layer 27, as shown inter alia on the basis of Fig. 4 is reliably protected against abrasion and other environmental influences.
  • the assembly effort is low because the damping composite elements 11, 12, 13 must be inserted only before the assembly of the fuel injection valves 3, 4 and the retaining clip 30 can be clipped in the mounting direction 31.
  • the properties of the damping layers 27, 28, 37, 41 can be adapted via the thickness and / or the material properties with regard to some optimization parameters.
  • the optimization parameters that can be used are, in particular, the frequency contents to be damped and the temperature.
  • an outer damping layer 27, 28, as shown, inter alia, with reference to 6 and 7 is described, are influenced by a geometric design. Specifically, a profiling or micro-profiling on an outer damping layer 27, 28 may be provided. For example, outwardly directed nubs may be provided. As a result, the damping effect can optionally be increased further.
  • the damping composite elements 11, 12, 13 may be designed as annular or partially annular damping composite elements 11, 12, 13. In a partially annular design, a plurality of damping composite elements distributed over the circumference may be provided. Accordingly, a plurality of retaining clips corresponding to the retaining clip 30 may be provided over the circumference.

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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 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 au moins un élément de retenue (30) à la coupelle associée (9),
    caractérisé en ce
    qu'au niveau d'un côté extérieur (18) de la coupelle (9) est prévue une surface d'appui (19), en ce qu'au niveau d'un côté inférieur (16) de la coupelle (9) est configurée une surface de support (17) en ce que l'élément de retenue (30) est configuré sous forme de pince de retenue (30), en ce qu'au niveau d'un côté extérieur (20) de la soupape d'injection de carburant (3) est prévue une surface d'appui (21), en ce que la pince de retenue (30) vient en prise par l'arrière d'une part avec la surface d'appui (19) de la coupelle (9) et d'autre part avec la surface d'appui (21) de la soupape d'injection de carburant (3) et sollicite la soupape d'injection de carburant (3) contre la surface de support (17) et en ce qu'entre la soupape d'injection de carburant (3) et la surface de support (17) de la coupelle (9) et/ou qu'entre la surface d'appui (21) de la soupape d'injection de carburant (3) et la pince de retenue (30) est disposé au moins un élément composite d'amortissement (11, 13).
  2. Agencement selon la revendication 1,
    caractérisé en ce que
    la surface d'appui (19) de la coupelle (9) et la surface d'appui (21) de la soupape d'injection de carburant (3) sont opposées l'une à l'autre et/ou en ce que la surface d'appui (19) de la coupelle (9) et la surface de support (17) de la coupelle (9) sont opposées l'une à l'autre.
  3. Agencement selon la revendication 1 ou 2,
    caractérisé en ce que
    du côté extérieur (18) de la coupelle (9) est configuré un gradin (22) de la coupelle (9) de forme au moins partiellement annulaire, au niveau
    duquel est configurée la surface d'appui (19) de la coupelle (9), et/ou en ce qu'au niveau de la soupape d'injection de carburant (3) est configuré un épaulement (23) de forme au moins partiellement annulaire, au niveau duquel sont configurées la surface d'appui (21) de la soupape d'injection de carburant (3) et une surface de support (24) tournée vers la surface de support (17) de la coupelle (9).
  4. Agencement selon la revendication 3,
    caractérisé en ce
    qu'au moins l'un des éléments composites d'amortissement (11, 13) présente une portion extérieure recourbée (42, 43) qui vient en prise autour d'un côté extérieur (38) de l'épaulement (23).
  5. Agencement selon la revendication 3 ou 4,
    caractérisé en ce
    qu'au moins l'un des éléments composites d'amortissement (11, 13) est configuré sous forme d'un élément composite d'amortissement (11, 13) au moins approximativement plan et dépasse au-delà d'un côté extérieur (38) de l'épaulement.
  6. Agencement selon l'une quelconque des revendications 3 à 5,
    caractérisé en ce
    qu'au moins l'un des éléments composites d'amortissement (11, 13) est configuré sous forme d'élément composite d'amortissement (11, 13) de forme annulaire ou partiellement annulaire.
  7. Agencement selon l'une quelconque des revendications 3 à 6,
    caractérisé en ce que
    l'élément composite d'amortissement (11) est disposé entre la surface de support (24) de la soupape d'injection de carburant (3) et la surface de support (17) de la coupelle (9).
  8. Agencement selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce
    qu'un premier des éléments composites d'amortissement (11) est disposé entre la soupape d'injection de carburant (3) et la surface de support (17) de la coupelle (9) et en ce qu'un deuxième des éléments composites d'amortissement (13) est disposé entre la surface d'appui (21) de la soupape d'injection de carburant (3) et la pince de retenue (30).
  9. Agencement selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    la pince de retenue (30) est configurée à partir d'une tôle composite (30) ayant au moins une couche métallique (35, 36) et au moins une couche d'amortissement (37).
  10. Agencement selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    la pince de retenue (30) est formée d'au moins un matériau rigide.
  11. Agencement selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    l'élément composite d'amortissement (11, 12, 13) présente au moins une couche métallique (25, 26, 35, 36) et au moins une couche d'amortissement (27, 28, 37).
EP13715934.9A 2012-04-26 2013-04-02 Ensemble comprenant une rampe de distribution de carburant et plusieurs soupapes d'injection de carburant Active EP2841761B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012206890A DE102012206890A1 (de) 2012-04-26 2012-04-26 Anordnung mit einem Brennstoffverteiler und mehreren Brennstoffeinspritzventilen
PCT/EP2013/056850 WO2013160068A1 (fr) 2012-04-26 2013-04-02 Ensemble comprenant une rampe de distribution de carburant et plusieurs soupapes d'injection de carburant

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EP2841761B1 true EP2841761B1 (fr) 2016-06-08

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EP (1) EP2841761B1 (fr)
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Publication number Publication date
US20150083082A1 (en) 2015-03-26
CN104246205B (zh) 2017-06-20
KR20150003757A (ko) 2015-01-09
CN104246205A (zh) 2014-12-24
DE102012206890A1 (de) 2013-10-31
KR102074651B1 (ko) 2020-03-02
EP2841761A1 (fr) 2015-03-04
US10184437B2 (en) 2019-01-22
WO2013160068A1 (fr) 2013-10-31

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