EP3359805B1 - Dispositif d'injection de fluide pour moteurs à combustion interne - Google Patents

Dispositif d'injection de fluide pour moteurs à combustion interne Download PDF

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Publication number
EP3359805B1
EP3359805B1 EP16781708.9A EP16781708A EP3359805B1 EP 3359805 B1 EP3359805 B1 EP 3359805B1 EP 16781708 A EP16781708 A EP 16781708A EP 3359805 B1 EP3359805 B1 EP 3359805B1
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EP
European Patent Office
Prior art keywords
valve needle
spring element
valve
spring
injection device
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
EP16781708.9A
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German (de)
English (en)
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EP3359805B8 (fr
EP3359805A1 (fr
Inventor
Dejan Jovovic
Anatoliy Lyubar
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.)
Vitesco Technologies GmbH
Original Assignee
Continental Automotive 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 EP3359805A1 publication Critical patent/EP3359805A1/fr
Application granted granted Critical
Publication of EP3359805B1 publication Critical patent/EP3359805B1/fr
Publication of EP3359805B8 publication Critical patent/EP3359805B8/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
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • 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
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
    • F02M63/0022—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures the armature and the valve being allowed to move relatively to each other
    • 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
    • F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs

Definitions

  • the invention relates to a fluid injection device for internal combustion engines, as is known, for example, for direct fuel injection in self-igniting internal combustion engines.
  • a fuel injection valve is known in which the valve needle is guided in a middle section with very little clearance in the pressure chamber.
  • lateral slits are provided on the valve needle.
  • the components, in particular the valve needle and the pressure chamber must be worked very precisely, which leads to increased costs in the production, since the machining of the inside of a bore is always associated with great effort.
  • valve needle a precise guidance of the valve needle is sought in order to achieve a high accuracy in the metering of the fuel and a symmetrical atomization of the fuel.
  • a precise guidance of the valve needle reduces the wear on the valve seat.
  • DE 10 2008 012 356 A1 discloses a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine.
  • EP 1 431 569 A2 discloses a fuel injector, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine.
  • DE 100 24 703 A1 discloses an injection assembly for a fuel rail injection system of an internal combustion engine.
  • a fluid injection device for internal combustion engines is specified, in particular a fluid injector.
  • the fluid injection device is exemplified example, a fuel injection device, in particular a fuel injector.
  • the fluid injector includes a valve body in which a valve needle is slidably disposed along a longitudinal axis of the valve body and cooperates with a valve seat to expose or close a fluid outlet.
  • the fluid outlet is a fuel outlet.
  • the fluid injection device has at least one spring element as a guide of the valve needle, which is arranged between the valve body and the valve needle and by means of which the valve needle is supported on the valve body.
  • the spring element is arranged in the radial direction between the valve needle and a circumferential side wall of the valve body.
  • the spring element in particular bridges the radial gap between the valve needle and the side wall.
  • the circumferential side wall delimits the cavity of the valve body, through which fluid flows from an inlet of the fluid injector to the fluid outlet and in which the valve needle is arranged, in particular in the radial direction.
  • the spring element is compressible in particular in the radial direction.
  • the fact that the spring element constitutes a guide of the valve needle is understood in particular to mean that the spring element prevents or at least largely prevents tilting of the valve needle with respect to the longitudinal axis during operation of the fluid injection device.
  • the valve needle is centered by means of the spring element with respect to the longitudinal axis and guided axially.
  • valve needle is therefore not directly guided by rigid body and in particular not directly by housing parts, but for guiding serves at least one spring element, which in turn is connected to the valve body.
  • the needle does not have to be guided without play. Rather, the at least one spring element conveys management forces-in particular radially directed management forces-between the valve needle and the valve body. If the spring element is designed such that these guiding forces are symmetrical, precise guidance of the valve needle is possible.
  • a valve body is understood as meaning a housing part or a component fixedly connected to a housing part of the fluid injection device, which surrounds the fluid-filled interior space in the lower area of the fluid injection device - which is in particular the cavity of the valve body - and on the valve body the valve needle is guided.
  • a support of the valve needle on the valve body by the spring element is understood here and below that a force transmission from the valve needle to the valve body and vice versa by the spring element is possible.
  • the spring element exerts restoring forces on the valve needle, which effect a centered guidance of the valve needle.
  • the restoring forces expediently act on the valve needle, in particular in the radial direction.
  • the spring element in particular the radial restoring forces opposing forces on the valve body, in particular on its side wall. Emotional can exert the spring element in one embodiment, in addition axial restoring forces on the valve needle.
  • the at least one spring element has a bias, in the fully assembled state of the fluid injection device and regardless of the position of the valve, i. from the position of the valve needle.
  • the spring element is biased in the radial direction. For example, it is compressed in the radial direction in the radial gap between the valve needle and the side wall of the valve body clamped.
  • the bias also prevents over time a particular radial clearance between the spring and the valve body or the valve needle is formed, which would prevent safe guidance of the valve needle.
  • the at least one spring element is designed as a round helical spring and is supported with its inner circumference on the valve needle and with its outer circumference on the valve body, or the at least one spring element is designed as a spider spring.
  • the spring element has the outer contours of a torus, which is formed by a helical spring.
  • the coil spring has a torus as an envelope.
  • the turns of the helical spring may conveniently be wound around a curved and closed centerline, especially about a circular centerline, which is particularly the centerline of the torus.
  • the center line is expediently only an imaginary line.
  • Such a spring element is suitable to effect a symmetrical restoring force on the valve needle and thus a secure guidance.
  • the spring element has an inner circumference, with which it is supported on the valve needle, and a number of struts, with which it is supported on the valve body.
  • a spider spring is understood in particular a spring having an annular base body and a plurality of spring struts, which extend from the main body radially outward.
  • the main body preferably has a passage, in particular a central opening, which defines the inner periphery, and through which the valve needle extends.
  • the struts are preferably bent so that they not only extend radially outwards from the base body, but at the same time extend axially beyond the base body.
  • Such a spring element is also suitable for effecting a symmetrical restoring force and thus reliable guidance of the valve needle. It is very easy to install.
  • At least two spring elements are provided, which are designed as helical springs and spaced along the circumference of the valve needle between the valve needle and the valve body are arranged, in particular opposite each other.
  • the degree of symmetry of the forces acting on the valve needle forces can be increased by the fact that more spring elements along the circumference of the valve needle are arranged, for example 3, 4, 5 or 6 spring elements which are distributed symmetrically in particular in the circumferential direction.
  • a guide of the valve needle can be achieved by means of particularly simple components.
  • Fuel can easily pass through both a coil spring and a spider spring. A particularly large hydraulic diameter can be achieved, so that no further Means are required for a fuel passage through the interior of the fluid injection device.
  • At least one first spring element on a side facing the fluid outlet
  • the first and second spring members are adjacent opposite axial ends of the valve needle.
  • a guide of the valve needle at at least two points, namely at the top and bottom of the valve needle is provided.
  • the leadership is thus particularly stable.
  • the risk of tilting the valve needle is particularly low.
  • a first round coil spring may be provided on a portion of the valve needle facing the fluid outlet and a second round coil spring on a portion of the valve needle remote from the fluid outlet.
  • various spring elements may be used, such as a round coil spring on a portion of the valve needle facing the fluid outlet, and a spider spring on a portion of the valve needle remote from the fluid outlet.
  • At least one spring element is arranged on a middle section of the valve needle between a section facing the fluid outlet and a section of the valve needle remote from the fluid outlet.
  • the geometric center of gravity of the spring element relative to the geometric center of gravity of the valve needle by 30% or less, in particular by 20% or less of the axial extent of the valve needle is arranged offset in the axial direction. This spring element allows a guide of the valve needle in the central portion, so that a particularly accurate axial guidance of the valve needle can be achieved.
  • This guide can be provided as a sole guide of the valve needle, in particular if a guide of the valve needle is realized in any other section anyway by the geometry of the fluid injection device, for example on Valve seat.
  • the guide in the middle section of the valve needle may also be provided in addition to a guide on a portion of the valve needle facing the fluid outlet and on a portion of the valve needle remote from the fluid outlet.
  • the at least one spring element can be welded or otherwise firmly connected to an outer wall of the valve needle and / or an inner wall of the valve body.
  • a round coil spring may be welded at its inner periphery to the valve needle and / or at its outer periphery to the valve body.
  • a spider spring may be welded at its inner periphery to the valve needle and / or to its struts with the valve body.
  • the at least one spring element can also be welded only to the valve needle or the valve body and slide along the valve body or the valve needle.
  • the at least one spring element is formed of a corrosion-resistant spring steel, wherein the corrosion resistance refers to the fuel used, with which the spring element is in contact.
  • FIG. 1 shows a fluid injection device 1 according to a first embodiment of the invention.
  • the present fluid injection apparatus 1 is, for example, a fuel injector, in particular for injecting fuel into the intake tract of an internal combustion engine.
  • a urea injector for injecting a urea solution for the exhaust aftertreatment.
  • the fluid injection device 1 has a valve 3 with a valve needle 5, a ball-shaped tip 7 and a valve seat 9. In the closed state, the tip 7 is pressed by the force of a return spring 30 on the valve seat 9 and thus closes the nozzle 11.
  • a valve housing - the valve body 13 - surrounds the valve 3 and the nozzle shaft 15, which is formed as a cavity within the valve body 13 and is filled with fuel during operation.
  • the nozzle 11 forms a fluid outlet of the fluid injector 1, i. present e.g. a fuel outlet.
  • an inlet chamber 19 which is formed by the inlet tube 18 and which is in flow communication with the nozzle shaft 15.
  • a filter 29 is arranged for the fuel, the positioning of the bias of the return spring 30 is adjustable.
  • the inlet chamber 19 and the nozzle stem 15 are filled with the fuel to be injected.
  • the fluid injection device 1 To inject the To allow fuel through the nozzle 11, the fluid injection device 1 to an electromagnetic actuator.
  • the electromagnetic actuator comprises a coil 21, an armature 23, a pole piece 25 and a non-magnetic sleeve 27 which is pressed onto one end of the pole piece 25.
  • the armature 23 is displaceable in the longitudinal direction of the fluid injection device 1 and in the present case firmly connected to the valve needle 5. So he takes the valve needle 5 with it when it moves axially.
  • the fluid injection device 1 has a guide of the valve needle 5 by a spring element 17, which is arranged within the nozzle shaft 15.
  • the spring element 17 is designed as a round helical spring, whose windings are wound around a closed, imaginary center line circulating around the longitudinal axis 34 in a circular manner.
  • FIG. 2 shows a detail of the fluid injection device 1 with the spring element 17 in detail. In this case, only half of the fluid injection device 1 above the longitudinal axis 34 is shown for the sake of simplicity.
  • the overall diameter of the spring element 17 is slightly larger than the diameter of the nozzle shaft 15, so that it can be introduced into the nozzle shaft 15 with a slight bias. Its inner diameter may be slightly smaller in the relaxed state than the outer diameter of the valve needle 5, so that it is also biased relative to the valve needle 5.
  • the spring element 17 is after insertion into the nozzle shaft 15 in the radial gap 16 between the valve needle 5 and a circumferential about the longitudinal axis 34
  • Side wall 14 of the valve body 13 is arranged. It is supported with its inner circumference on the valve needle 5 and with its outer circumference on the valve body 13. Thus, it bridges the radial gap between the valve needle 5 and the valve body 13 and exerts radially inwardly directed restoring forces on the valve needle 5.
  • the spring element 17 exerts radially outwardly directed opposing forces on the side wall 14 of the valve body 13 in the region of the nozzle shaft.
  • the valve needle 5 is centered in the region of the nozzle shaft 15 on the longitudinal axis 34 and axially guided by the spring element 17.
  • a round coil spring is provided as a guide of the valve needle 5.
  • This spring element 17 is arranged in a portion of the valve needle facing the fluid outlet, namely in the axial end region of the valve needle 5 immediately in front of the tip 7.
  • FIGS. 1 and 2 Further guides of the valve needle by spring elements 17 are in the FIGS. 1 and 2 not shown.
  • the end facing away from the tip 7 of the valve needle 5 is guided axially by means of the armature 23.
  • the armature 23 may be in sliding contact with the sleeve 27 and / or the valve body 3.
  • FIG. 3 shows a schematic diagram of a section of a fluid injection device 1 according to another embodiment of the invention, with the first embodiment according to the FIGS. 1 and 2 could be combined.
  • a spring element 17 is disposed at a portion of the valve needle 5 remote from the fluid outlet.
  • the spring element 17 is also formed in this embodiment as a round coil spring. It is welded in the points marked with P with the valve needle 5 and with the valve body 13. Such a welding of the spring element 17 can also in the in the FIGS. 1 and 2 However, for the sake of clarity, it is not shown.
  • the spring element 17 is inserted under prestress in the valve body 13. It therefore exerts radial forces indicated by the arrows 32 on the valve needle 5 or the side wall 14 of the valve body 13. These forces cause an axial guidance of the valve needle 5 in the valve body 13 and center the valve needle 5, in particular on the longitudinal axis 34.
  • FIG. 4 shows a spring element 17, which is used in a further embodiment of the fluid injection device 1 in plan view along the longitudinal axis 34th
  • the spring element 17 is formed in this embodiment as a spider spring and has an annular base body 33 with an inner circumference 35 which surrounds a passage 37. From the annular base body 33 spring struts 36 extend outwards. In addition, the struts 36 are bent so that they extend away from the main body 33 in the axial direction and protrude axially beyond this. Present, the struts 36 have a C-shaped curve (see Fig. 5 ).
  • FIG. 5 shows the fluid injection device 1 according to an embodiment of the invention with the in FIG. 4
  • the spring element 17 is arranged such that the valve needle 5 extends through the passage 37 and the inner circumference 35 of the spring element 17 rests against the valve needle 5. Along the inner circumference 35, the spring element 17 is welded to the valve needle 5.
  • the spring element 17 With its struts 36, the spring element 17 is supported on the valve body 13. Since the spring element 17 is introduced under bias in the valve body 13, it exercises in the basis of FIG. 3 explained manner forces on the valve body 13 and the valve needle 5, which cause a guide of the valve needle 5.
  • valve needle is in all embodiments shown along the longitudinal axis 34 movable as far as it is necessary for the opening and closing of the valve.
  • spring elements 17 in the form of round coil springs and in the form of spider springs or differently designed spring elements can be combined with each other so that one of the spring elements 17 is arranged on a section of the nozzle needle 5 facing the fluid outlet and at least one further, differently designed spring element 17 on one from the fluid outlet remote portion of the nozzle needle 5 is arranged.

Claims (10)

  1. Dispositif d'injection de fluide (1) pour moteurs à combustion internes, comprenant un corps de soupape (13) dans lequel une aiguille de soupape (5) est disposée de manière déplaçable le long d'un axe longitudinal (34) du corps de soupape (13) et coopère avec un siège de soupape (9) afin d'ouvrir ou de fermer une sortie de fluide, le dispositif d'injection de fluide (1) présentant au moins un élément de ressort (17) qui est disposé dans la direction radiale entre le corps de soupape (13) et l'aiguille de soupape (5) et au moyen duquel l'aiguille de soupape (5) s'appuie contre le corps de soupape (13) de telle sorte que l'aiguille de soupape (5) soit guidée au moyen de l'élément de ressort (17) afin d'empêcher au moins essentiellement un basculement de l'aiguille de soupape (5) par rapport à l'axe longitudinal (34) pendant le fonctionnement du dispositif d'injection de fluide (1),
    caractérisé en ce que
    l'au moins un élément de ressort (17) est réalisé sous la forme d'un ressort hélicoïdal rond avec une ligne médiane fermée courbe autour de laquelle sont enroulées les spires du ressort hélicoïdal, et l'aiguille de soupape (5) s'appuie au moyen de l'élément de ressort (17) contre le corps de soupape (13) par le fait que l'élément de ressort (17) s'appuie avec sa périphérie intérieure contre l'aiguille de soupape (5) et avec sa périphérie extérieure contre le corps de soupape (13),
    ou en ce que l'au moins un élément de ressort (17) est réalisé sous forme de ressort araignée et présente une périphérie intérieure (35) avec laquelle il s'applique contre l'aiguille de soupape (5), ainsi qu'une pluralité de branches de ressort (36) avec lesquelles il s'appuie contre le corps de soupape (13).
  2. Dispositif d'injection de fluide (1) selon la revendication précédente, dans lequel l'élément de ressort (17) est disposé dans la direction radiale entre l'aiguille de soupape (5) et une paroi latérale (14) du corps de soupape (13) entourant l'axe longitudinal (34) et surmonte la fente radiale (16) entre l'aiguille de soupape (5) et la paroi latérale (14).
  3. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, dans lequel l'aiguille de soupape (5) est centrée et guidée axialement par rapport à l'axe longitudinal (34) au moyen de l'élément de ressort.
  4. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, dans lequel l'au moins un élément de ressort (17) est précontraint dans la direction radiale.
  5. Dispositif d'injection de fluide (1) selon les revendications 2 et 4, dans lequel l'élément de ressort (17) exerce sur l'aiguille de soupape (5) et le corps de soupape des forces radiales orientées en sens opposé au niveau de côtés opposés de la fente (16).
  6. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, présentant une pluralité d'éléments de ressort (17) en tant que guidage de l'aiguille de soupape (5), lesquels sont disposés dans la direction radiale entre le corps de soupape (13) et l'aiguille de soupape (5) et au moyen desquels l'aiguille de soupape (5) s'appuie contre le corps de soupape (13), au moins deux des éléments de ressort (17) étant réalisés sous forme de ressorts hélicoïdaux et étant disposés le long de la périphérie de l'aiguille de soupape (5) à distance l'un de l'autre entre l'aiguille de soupape (5) et le corps de soupape (13).
  7. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, présentant une pluralité d'éléments de ressort (17) en tant que guidage de l'aiguille de soupape (5), lesquels sont disposés dans la direction radiale entre le corps de soupape (13) et l'aiguille de soupape (5) et au moyen desquels l'aiguille de soupape (5) s'appuie contre le corps de soupape (13), au moins un premier élément de ce ressort (17) étant disposé au niveau d'une portion de l'aiguille de soupape (5) tournée vers la sortie de fluide et au moins un deuxième élément de ressort (17) étant disposé au niveau d'une portion de l'aiguille de soupape (5) éloignée de la sortie de fluide.
  8. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, dans lequel l'élément de ressort (17) ou au moins l'un des éléments de ressort (17) est disposé au niveau d'une portion centrale de l'aiguille de soupape (5) entre une portion tournée vers la sortie de fluide et une portion de l'aiguille de soupape (5) éloignée de la sortie de fluide.
  9. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, dans lequel l'au moins un élément de ressort (17) est soudé à l'aiguille de soupape (5) et/ou à une surface interne du corps de soupape (13).
  10. Dispositif d'injection de fluide (1) selon l'une quelconque des revendications précédentes, dans lequel l'au moins un élément de ressort (17) est formé d'un acier à ressort résistant à la corrosion.
EP16781708.9A 2015-10-09 2016-10-05 Dispositif d'injection de fluide pour moteurs à combustion interne Active EP3359805B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219646.1A DE102015219646A1 (de) 2015-10-09 2015-10-09 Fluid-Einspritzvorrichtung für Brennkraftmaschinen
PCT/EP2016/073764 WO2017060285A1 (fr) 2015-10-09 2016-10-05 Dispositif d'injection de fluide pour moteurs à combustion interne

Publications (3)

Publication Number Publication Date
EP3359805A1 EP3359805A1 (fr) 2018-08-15
EP3359805B1 true EP3359805B1 (fr) 2019-07-31
EP3359805B8 EP3359805B8 (fr) 2019-12-18

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EP16781708.9A Active EP3359805B8 (fr) 2015-10-09 2016-10-05 Dispositif d'injection de fluide pour moteurs à combustion interne

Country Status (6)

Country Link
US (1) US10570864B2 (fr)
EP (1) EP3359805B8 (fr)
KR (1) KR102082588B1 (fr)
CN (1) CN108138734B (fr)
DE (1) DE102015219646A1 (fr)
WO (1) WO2017060285A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015219646A1 (de) 2015-10-09 2017-04-13 Continental Automotive Gmbh Fluid-Einspritzvorrichtung für Brennkraftmaschinen

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KR20180063889A (ko) 2018-06-12
CN108138734B (zh) 2020-10-02
WO2017060285A1 (fr) 2017-04-13
US20180306152A1 (en) 2018-10-25
DE102015219646A1 (de) 2017-04-13
EP3359805B8 (fr) 2019-12-18
EP3359805A1 (fr) 2018-08-15
CN108138734A (zh) 2018-06-08
KR102082588B1 (ko) 2020-02-27
US10570864B2 (en) 2020-02-25

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