EP1848890A1 - Soupape d'injection pour injecter du carburant, et culasse - Google Patents

Soupape d'injection pour injecter du carburant, et culasse

Info

Publication number
EP1848890A1
EP1848890A1 EP06708237A EP06708237A EP1848890A1 EP 1848890 A1 EP1848890 A1 EP 1848890A1 EP 06708237 A EP06708237 A EP 06708237A EP 06708237 A EP06708237 A EP 06708237A EP 1848890 A1 EP1848890 A1 EP 1848890A1
Authority
EP
European Patent Office
Prior art keywords
nozzle body
injection valve
cylinder head
coupling element
recess
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.)
Ceased
Application number
EP06708237A
Other languages
German (de)
English (en)
Inventor
Klaus ROTTENWÖHRER
Andreas Weigand
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.)
Continental Automotive GmbH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1848890A1 publication Critical patent/EP1848890A1/fr
Ceased legal-status Critical Current

Links

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
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads

Definitions

  • Injection valve for injecting fuel and cylinder head
  • the invention relates to an injection valve which can be installed in a recess of a cylinder head of an internal combustion engine, with at least one injection opening and with a nozzle body comprising a nozzle body. Furthermore, the invention relates to a cylinder head for an internal combustion engine having a recess into which an injection valve is installed.
  • An improved mixture preparation can be achieved if fuel is injected under very high pressure via an injection valve through at least one injection opening into a combustion chamber of the internal combustion engine.
  • a very fine spray pattern of the fuel in the combustion chamber can be generated.
  • the at least one small injection opening has the disadvantage that deposits increasingly form, compared to a larger injection opening. The deposits can arise, for example, by coking.
  • the object of the invention is to provide an injection valve and a cylinder head, the or. which allows a simple way of reducing deposits on an injection valve.
  • the invention is characterized by an injection valve which can be installed in a recess of a cylinder head of an internal combustion engine, having at least one injection opening and a nozzle body, which comprises a nozzle body, wherein the nozzle body has a coupling element which projects radially from the nozzle body and shaft in a built-in state of the injection valve in the radial direction mechanically couples the nozzle body shaft with a lateral surface of the recess of the cylinder head.
  • deposits may form on portions of the injector exposed to hot combustion gases. These deposits occur at high temperatures, for example, by coking of fuel residues or by combustion residues from the combustion gases. They can grow so far that they extend into the Brennstoffström. A spray pattern of a fuel in a combustion chamber of the internal combustion engine can be adversely affected.
  • the arrangement of the coupling element on the nozzle body between the nozzle body of the injector and the lateral surface of the recess of the cylinder head allows during operation of the internal combustion engine in a simple manner to ensure a good heat dissipation from the nozzle body and from a region of the injector, in which the arranged at least one injection port is. This results in the region in which the at least one injection opening is arranged, and on the nozzle body at an average lower temperature and thus to effectively reduce the formation of deposits on the at least one injection opening.
  • the coupling element on the nozzle body shaft along its axial extent to different radii.
  • the coupling element on the nozzle body is designed and arranged so that in the installed state of the injection valve, a free volume of the recess in the cylinder head relative to the combustion chamber of the internal combustion engine is sealingly separated.
  • the free volume of the recess is formed between the lateral surface of the recess of the cylinder head and the nozzle body of the injection valve and extends from the coupling element on the nozzle body shaft in the direction away from the at least one injection opening.
  • the axial length of the free volume can be varied by different arrangement of the coupling element along the axial extent of the nozzle body.
  • the sealing effect of the coupling element on the nozzle body can be effectively prevented during operation of the internal combustion engine, that the hot combustion gases from the combustion chamber enter the free volume and heat the nozzle body over the free volume.
  • the part of the nozzle body adjacent to the free volume forms a heat sink. This leads to an effective heat removal from the region of the injection valve on which the at least one injection opening is arranged.
  • the coupling element is arranged on the nozzle body, that it is arranged in the installed state of the injection valve in an axial end portion of the recess, which faces the combustion chamber of the internal combustion engine.
  • the coupling element may be arranged on the nozzle body shank flush with a combustion chamber wall of the cylinder head, which faces the combustion chamber.
  • the coupling element can also be arranged on the nozzle body shaft in an axial end region of the nozzle body shaft, which faces the injection opening.
  • the axial length of the axial end region on the nozzle body shaft corresponds to approximately 10% of the axial length of the nozzle body shaft.
  • the coupling element is designed and arranged on the nozzle body so that it forms a thermal coupling between the nozzle body of the injector and the lateral surface of the recess of the cylinder head in the radial direction in the installed state of the injector.
  • the coupling element is formed on at least one predetermined portion of the circumference of the nozzle body shaft.
  • the predetermined portion of the circumference is to be understood as part of the circumference.
  • the coupling element may be formed so that it does not run around the entire circumference of the nozzle body shaft, but is interrupted. If the lateral surface of the recess of the cylinder head has an inaccuracy with regard to its roundness, then this may possibly be compensated during the installation of the injection valve in the recess of the cylinder head by rotating the injection valve about its longitudinal axis.
  • the coupling element is arranged on the nozzle body so that it is coupled in the installed state of the injection valve with the cylinder head in a coupling region on which the cylinder head during operation of the internal combustion engine has a predetermined temperature gradient. This allows a predetermined heat dissipation from the nozzle body into the cylinder head, the cylinder head preferably having a suitably large temperature gradient at the coupling region.
  • the coupling element is arranged on the nozzle body that, in the installed state of the injection valve, it has a predetermined distance to a cooling of the injection valve. Linders head has. If the distance to the cooling of the cylinder head is preferably low, the heat dissipation is particularly effective.
  • the coupling element comprises copper on the nozzle body.
  • Copper is a relatively soft metal with a high coefficient of thermal conductivity. If the coupling element on the nozzle body is relatively soft, the injection valve can be easily mounted.
  • the high thermal conductivity of the copper allows a particularly effective thermal coupling of the nozzle body of the injector with the lateral surface of the recess of the cylinder head.
  • the coupling element is formed as a layer on the nozzle body.
  • the layer can be easily applied to the nozzle body of the injection valve, on the other hand, a variety of materials can be used to form the layer.
  • the layer comprises carbon.
  • a layer of graphite formed of carbon may be simply formed on the nozzle body with an interference fit with respect to the recess in the cylinder head.
  • graphite is heat resistant.
  • the layer comprises a thermal paste. This can be easily applied to the nozzle body and allows a particularly effective thermal coupling of the Nozzle body of the injection valve with the lateral surface of the recess of the cylinder head.
  • the coupling element on the nozzle body shaft comprises an elastically deformable material.
  • the coupling element may be formed on the nozzle body shaft preferably with an interference fit, with respect to the recess in the cylinder head.
  • the incorporation of the injection valve into the recess of the cylinder head is simple if the coupling element on the nozzle body shaft comprises an elastically deformable material.
  • the coupling element is formed integrally with the nozzle body.
  • the coupling element can thus be produced in one step with the nozzle body.
  • the invention is characterized by the cylinder head for the internal combustion engine, which has the recess into which the injection valve with the nozzle body shank can be installed, wherein on the lateral surface of the recess, the coupling element is formed on the cylinder head, in the installed state of the injection valve in the radial direction mechanically couples the nozzle body with the lateral surface.
  • the coupling element on the cylinder head which couples the nozzle body of the injector with the lateral surface of the recess of the cylinder head, allows a good heat dissipation through the nozzle body in a simple manner. This leads to an average lower temperature in the region of the injection valve on which the injection port is formed, and thus effectively reduces the formation of deposits on the at least one injection port. It can then be used without coupling element for operating the internal combustion engine, the injection valve.
  • the coupling element has different radii along the cylinder head along its axial extent. With a suitable choice of the radii, this makes it possible for installation of the injection valve in the recess of the cylinder head to be simple.
  • the coupling element on the cylinder head is designed and arranged such that in the installed state of the injection valve, the free volume between the lateral surface of the recess and the nozzle body is sealed relative to the combustion chamber of the internal combustion engine.
  • the free volume is formed between the lateral surface of the recess of the cylinder head and the nozzle body of the injector and extends from the coupling element on the cylinder head in the direction away from the combustion chamber.
  • the coupling element is arranged on the cylinder head, that in the installed state of the injection valve in the axial end region of the recess is arranged. As a result, during the operation of the internal combustion engine, a particularly large part of the nozzle body is protected from hot combustion gases.
  • the coupling element is formed and arranged on the cylinder head, that in the installed state of the injection valve in the radial direction forms a thermal coupling between the nozzle body of the injector and the lateral surface of the recess of the cylinder head.
  • the coupling element is arranged on the cylinder head such that in the installed state of the injection valve, the nozzle body shaft is coupled to the cylinder head in the coupling region of the lateral surface on which the cylinder head during operation of the internal combustion engine has a predetermined temperature gradient.
  • This allows a predetermined heat dissipation from the nozzle body into the cylinder head, wherein the coupling region of the lateral surface preferably has a suitably large temperature gradient.
  • the coupling element on the cylinder head may have a preferably small distance to the cooling in the cylinder head.
  • the coupling element comprises copper on the cylinder head.
  • the coupling element is formed as a layer on the lateral surface of the recess of the cylinder head. The layer can be easily applied to the lateral surface of the recess of the cylinder head.
  • the layer comprises a thermal compound.
  • the thermal compound can be easily applied to the lateral surface of the recess of the cylinder head and allows effective thermal coupling.
  • the layer may comprise carbon.
  • a layer of graphite which is formed of carbon, may be formed on the lateral surface of the recess in the cylinder head simply with an interference fit, with respect to the nozzle body.
  • graphite is heat resistant.
  • the coupling element is formed on at least one predetermined portion of the circumference of the lateral surface of the recess.
  • the predetermined portion of the circumference is to be understood as part of the circumference.
  • the coupling element on the cylinder head may be formed so that it does not run within the entire circumference of the lateral surface, but is interrupted. If the nozzle body has an inaccuracy with respect to its roundness, it may possibly be compensated for when the injection valve is mounted in the recess of the cylinder head by rotating the injection valve about its longitudinal axis.
  • the installation of the injection valve is easy if the coupling element on the cylinder head an elastic material um- sums up.
  • the coupling element on the cylinder head can also be formed integrally with the cylinder head. This is easy with respect to the production of the coupling element on the cylinder head.
  • the coupling element may be formed from a liquid which is poured after assembly of the injection valve into the recess of the cylinder head between the nozzle body shaft and the lateral surface of the recess in the cylinder head and then hardens. This allows a simple way a tailor-made design of the coupling element.
  • FIG. 1 shows a first embodiment of an arrangement of an injection valve in a cylinder head
  • FIG. 3 shows a third embodiment of the arrangement of the injection valve in the cylinder head
  • FIG. 4 shows a cross section through the injection valve according to FIG. 3,
  • FIG. 5 shows a fourth embodiment of the arrangement of the injection valve in the cylinder head
  • FIG. 6 shows a fifth embodiment of the arrangement of the injection valve in the cylinder head
  • 7 shows a sixth embodiment of the arrangement of the injection valve in the cylinder head
  • FIG 8 shows a section through the cylinder head according to FIG 7 without injector.
  • a first embodiment of an arrangement of an injection valve 1 in a cylinder head 5 ( Figure 1) comprises the injection valve 1, which is arranged in a recess 4 of the cylinder head 5, wherein the injection valve 1 and the cylinder head 5 are part of an internal combustion engine.
  • the injection valve 1 comprises a nozzle body 2, which is partially received in a nozzle clamping nut 3.
  • the injection valve 1 has at least one injection opening 6, via which fuel can be metered into a combustion chamber 14 of the internal combustion engine.
  • the injection valve 1 can also have a plurality of injection holes as the injection opening 6. Adjacent to the nozzle clamping nut 3, an injector seal 7 is arranged around the nozzle body 2.
  • the Inj ektordichtung 7 separates a part of the recess 4 from a sealing, in which the nozzle lock nut 3 is disposed opposite a combustion chamber side region 9 of the recess 4.
  • the Inj ektordichtung 7 axial coupling between the nozzle lock nut 3 and a shoulder 15 of the recess. 4 dar.
  • the combustion chamber-side region 9 of the recess 4 extends from the shoulder 15 up to an axial end of the recess 4, which faces the combustion chamber 14.
  • Between the injection port 6 and the Inj ektordichtung 7 of the nozzle body 2 is formed as a nozzle body shaft 8.
  • the nozzle body 8 is arranged in part in the combustion chamber side region 9 of the recess 4 and is located there Jacket surface 10 of the combustion chamber-side region 9 of the recess 4 opposite.
  • the injection valve 1 may be formed differently with respect to the embodiment of the injection port 6. If the injection valve 1 is designed to open inwardly, the nozzle body 2 encloses a nozzle needle, at an axial end of the nozzle body 2, which faces the combustion chamber. The nozzle body 2 then has as injection opening 6 at least one, preferably a plurality of injection holes, which are arranged at the axial end of the nozzle body 2, which faces the combustion chamber. The position of the nozzle needle in the nozzle body 2 is controlled by an actuator, not shown. In a closed position, the nozzle needle stops fuel flow through the injection holes. In an open position, the nozzle needle releases the fuel flow through the injection holes.
  • the nozzle needle protrudes from a recess in the nozzle body 2 at the axial end of the nozzle body 2 facing the combustion chamber.
  • the nozzle needle rests against the recess in the nozzle body 2 such that the fuel flow through the recess in the nozzle body 2 is prevented.
  • an annular gap is formed between the nozzle needle and the recess in the nozzle body 2, which serves as an injection port 6 and through which the fuel can be metered into the combustion chamber 14 of the internal combustion engine.
  • the formation of deposits on the injection valve 1 is dependent on different parameters.
  • the size of the injection port 6 affects the pollutant emissions and on the formation of deposits.
  • a small injection port 6 contributes to a fine spray pattern and thus to low pollutant emissions, but tends more to the formation of deposits.
  • the temperature of the injection valve 1 in the region 16 of the injection valve 1, on which the injection opening 6 is arranged also has an effect on the formation of deposits during operation of the internal combustion engine. The lower the temperature in the region 16 of the injection valve 1, at which the injection opening 6 is arranged, the lower is the tendency for the formation of deposits.
  • the nozzle body shaft 8 has a coupling member 11 in an axial end portion 17 at an axial end of the nozzle body shaft 8, which faces the combustion chamber 14 in the installed state of the injector 1.
  • the coupling element 11 is formed and arranged on the nozzle body shaft 8 such that a free volume 18 of the recess 4 is sealed relative to the combustion chamber 14.
  • the free volume 18 is formed between the nozzle body 8 of the injection valve and the recess 4 of the cylinder head 5 and extends from the coupling element 11 in the direction away from the combustion chamber 14.
  • the sealing effect of the coupling element 11 on the nozzle body shaft 8 leads to an effective heat dissipation via the nozzle body shaft 8 from the region 16 of the injection valve 1, on which the injection opening 6 is arranged. In the region 16, this leads to an average reduction of the temperature and thus to a low tendency to form deposits.
  • the coupling element 11 on the nozzle body shaft 8 comprises, for example, a graphite layer. This can be compared to the 4 are applied with an interference fit on the nozzle body. In a subsequent installation of the injector 1 in the recess 4 of the cylinder head, the graphite layer is then sanded to match the recess 4.
  • the coupling element 11 is arranged on the nozzle body shaft 8, that the distance to a cooling 12 in the cylinder head 5 is kept as low as possible.
  • a temperature gradient forms along the nozzle body shaft 8 and within the cylinder head 5.
  • the coupling element 11 on the nozzle body shaft 8 is preferably arranged on a coupling region 19 of the lateral surface 10, which has a suitably predetermined temperature gradient, preferably with a small distance to the cooling 12.
  • the coupling element 11 on the nozzle body 8 is preferably made of a thermally highly conductive material educated .
  • a material whose thermal conductivity coefficient ⁇ is greater than the heat conduction coefficient of the combustion gases is highly conductive in terms of heat.
  • the resulting heat during operation on the nozzle body 8 heat can be dissipated via the coupling element 11 on the nozzle body shaft 8 effectively in the cylinder head 5 for cooling 12.
  • the coupling element 11 preferably comprises copper on the nozzle body 8.
  • copper has a very high coefficient of thermal conduction ⁇ , and on the other hand, the softness of the copper facilitates the installation of the injection valve 1 into the recess 4 of the cylinder head 5.
  • the coupling element 11 on the nozzle body shaft 8 has three individual sections (see FIG. 4). An inaccuracy in the roundness of the recess 4 in the combustion chamber-side region 9 can be compensated for in the assembly of the injection valve 1 by rotation of the injection valve 1 about its longitudinal axis.
  • the coupling element 11 has different radii along its axial extent.
  • the coupling element 11 is spherical.
  • the maximum radius of the bulge is selected so that the nozzle body shaft 8 and the lateral surface 10 are coupled.
  • the coupling element 11 on the nozzle body shaft 8 may also be formed cone-shaped, wherein the radius is preferably reduced to the combustion chamber 14 out.
  • the coupling element 11 on the nozzle body shaft 8 may preferably comprise an elastic material and / or have an interference fit with respect to the recess 4. By pressing the coupling element 11 on the nozzle body shaft 8 against the lateral surface 10 of the recess 4, the free volume 18 is sealed relative to the combustion chamber 14. If the coupling element 11 comprises an elastic material, the ripple and an inaccuracy in the roundness of the recess 4 can be compensated by elastic deformation of the coupling element 11 on the nozzle body shaft 8 when the injection valve 1 is installed in the cylinder head 5.
  • the coupling element 11 on the nozzle body shaft 8 may preferably also be formed as a ring. This can then be pushed onto the nozzle body shaft 8 before the injection valve 1 is installed in the recess 4 of the cylinder head 5. Preferably, the ring then comprises a plastically and / or elastically deformable material.
  • the coupling element 13 is formed as a taper of the recess 4 on the cylinder head 5.
  • the coupling element 13 on the cylinder head 5 is designed and arranged such that it mechanically couples the nozzle body shaft 8 of the injection valve 1 with the lateral surface 10 of the recess 4.
  • the coupling element 13 may be formed integrally with the cylinder head 5 on the cylinder head 5.
  • the coupling element 13 on the cylinder head 5 may preferably be designed and arranged so that it thermally couples the nozzle body 8 of the injection valve 1 with the lateral surface 10 of the recess 4 in the installed state of the injection valve 1 and / or the free volume 18 of the recess 4 with respect to the Combustion chamber 14 sealingly separated.
  • the free volume 18 is then formed between the nozzle body 8 of the injection valve and the recess 4 of the cylinder head 5 and extends from the coupling element 11 in the direction away from the combustion chamber 14.
  • the free volume 18 may be formed with an axial end portion 21 overlapping which is formed at the axial end of the recess 4, which faces the combustion chamber 14.
  • the coupling element 13 on the cylinder head 5 can also be arranged deviating from the exemplary embodiments along the axial extension of the lateral surface 10 of the recess 4 of the cylinder head 5.
  • the coupling element 13 may be arranged on the cylinder head 5 in the coupling region 19 of the lateral surface 10, which has a suitably predetermined temperature gradient during operation of the internal combustion engine.
  • the coupling element 13 on the cylinder head 5 for example, a predetermined, preferably small distance from the cooling 12 (see Figure 2).
  • the coupling element 13 is arranged on the cylinder head 5 at two sections (see Figure 8) along the circumference of the lateral surface 10 of the recess 4 and couples the lateral surface 10 with the nozzle body 8 at the injection valve 1.
  • An effective thermal coupling by the coupling element 11 on the cylinder head 5 can be achieved by the use of a preferably large proportion of copper in the coupling element 11 on the cylinder head. It can be additionally improved by applying a layer, preferably the thermal compound.
  • the coupling element 11 on the cylinder head can also be formed only from a correspondingly thick layer of the thermal compound and / or another thermally highly conductive material.
  • the layer may also contain a preferably high proportion of graphite.
  • any execution form the coupling elements 11, 13 include an elastic material, graphite, copper, thermal paste, any thermally highly conductive material or generally thermally couple.
  • the coupling elements 11, 13 around the entire circumference of the nozzle body shaft 8 and. Reverse the recess 4, the free volume 18 may be sealingly separated from the combustion chamber 14.
  • the coupling elements 11, 13 are formed in sections, any number of sections may be formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne une soupape d'injection (1) qui peut être montée dans une cavité (4) de la culasse (5) d'un moteur à combustion interne, et comprend au moins une ouverture d'injection (6) et un corps de buse (2) comprenant une tige de corps de buse (8), la tige de corps de buse (8) présentant un élément de couplage (11) qui est espacé radialement de la tige de corps de buse (8) et, lorsque la soupape d'injection (1) est montée, couple mécaniquement en direction radiale la tige de corps de buse (8) à une surface périphérique (10) de la cavité (8) de la culasse (5).
EP06708237A 2005-02-14 2006-02-13 Soupape d'injection pour injecter du carburant, et culasse Ceased EP1848890A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005006641A DE102005006641A1 (de) 2005-02-14 2005-02-14 Einspritzventil zum Einspritzen von Kraftstoff und Zylinderkopf
PCT/EP2006/050900 WO2006084915A1 (fr) 2005-02-14 2006-02-13 Soupape d'injection pour injecter du carburant, et culasse

Publications (1)

Publication Number Publication Date
EP1848890A1 true EP1848890A1 (fr) 2007-10-31

Family

ID=36228721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06708237A Ceased EP1848890A1 (fr) 2005-02-14 2006-02-13 Soupape d'injection pour injecter du carburant, et culasse

Country Status (4)

Country Link
US (1) US20080264390A1 (fr)
EP (1) EP1848890A1 (fr)
DE (1) DE102005006641A1 (fr)
WO (1) WO2006084915A1 (fr)

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US20080264390A1 (en) 2008-10-30
DE102005006641A1 (de) 2006-08-24

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