EP3014096B1 - Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur - Google Patents

Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur Download PDF

Info

Publication number
EP3014096B1
EP3014096B1 EP14731663.2A EP14731663A EP3014096B1 EP 3014096 B1 EP3014096 B1 EP 3014096B1 EP 14731663 A EP14731663 A EP 14731663A EP 3014096 B1 EP3014096 B1 EP 3014096B1
Authority
EP
European Patent Office
Prior art keywords
injector
assembly
pairing
leakage
paired
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP14731663.2A
Other languages
German (de)
English (en)
Other versions
EP3014096A1 (fr
Inventor
Willibald SCHÜRZ
Roman Etlender
Werner Reim
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
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
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3014096A1 publication Critical patent/EP3014096A1/fr
Application granted granted Critical
Publication of EP3014096B1 publication Critical patent/EP3014096B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • F02M51/0607—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means the actuator being hollow, e.g. with needle passing through the hollow space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Definitions

  • the invention relates to a method for producing a plurality of injectors, in particular a plurality of fuel injectors for direct injection systems of motor vehicles. Furthermore, the invention relates to a method for pairing at least two injectors and to a method for producing an injector. Furthermore, the invention relates to an injector, in particular a fuel injector for a direct injection system of an internal combustion engine.
  • nozzle needle which is slidably mounted in the fuel injector and opens or closes an opening cross-section or one or a plurality of spray holes of a nozzle assembly of the fuel injector depending on its stroke.
  • a control of the nozzle needle for example, by means of a piezoelectric actuator, which actuates the nozzle needle hydraulically or mechanically.
  • a deviation of an actual injection quantity from a desired injection quantity of a fuel injector always has negative effects on combustion, ie the resulting pollutant emissions, and usually also consumption of the internal combustion engine.
  • high demands are placed on accuracy of the injection quantities and stability of a steel image under all operating conditions and over the entire service life of the fuel injector. This is even more true with regard to small injection quantities, in a multiple injection mode with the short injection intervals associated therewith and / or in a partial stroke mode of a nozzle needle.
  • An injection nozzle of the fuel injector is driven by the nozzle needle, which can be driven, for example, by means of a servovalve operable by a piezoactuator.
  • a hydraulically indirectly driven nozzle needle is state of the art.
  • the nozzle needle can also be controlled directly without a detour via a servo valve.
  • a coupling of a movement of the piezoelectric actuator and subsequently a movement of the nozzle needle can take place hydraulically directly, which brings about significant advantages.
  • the same requirements apply to such hydraulically directly driven fuel injectors as to injectors which can be controlled by means of a servo valve.
  • a hydraulic direct drive results in further advantageous properties of the fuel injectors.
  • an injector is known in which two mechanical games that are relevant for an injection quantity of the injector, in this case the inlet gaps, are paired with one another.
  • the injectors are adjusted or manufactured such that a total leakage and / or a pressure difference at a transmission pin of the respective injector across a possibly vast majority or a vast plurality of injectors across approximately, mainly or substantially constant.
  • the injectors may be designed such that the total leakage and / or the pressure differences at the transmission pins of the injectors is a measure of the injection quantities and / or accuracies of the injectors.
  • Ie. is a criterion for making a plurality of injectors, for. B. in addition to reproducible injection quantities whose approximate, mainly or substantially mutually constant total leaks, z. As total leakage currents and / or quantities, and / or their approximate, mainly or substantially mutually constant pressure differences at their transmission pins.
  • This criterion can, for. B. be a secondary condition to the injection quantities. In this case, it is preferable if the total leaks and / or pressure differences which are as constant as possible with one another are valid for a plurality of operating or test points and / or regions of the injectors.
  • a criterion for pairing the injectors is a total leakage and / or pressure differential at a transfer pin of the respective injector.
  • the injectors can be paired such that the total leaks and / or the pressure differences at the transmission pins of the injectors are mainly, substantially or almost the same.
  • means for injecting fuel e.g.
  • the injectors are selected in such a way that, in at least one operating point or test point and / or region, they are mainly, substantially or virtually one another have the same total leakage and / or pressure difference at their transmission pins.
  • the terms “approximately”, “mainly”, “substantially” or “nearly” that relate the corresponding measured values and / or calculated values for the total leakage and / or pressure differences should be able to be classified in the following descending order: (distinct) different ( at least ten or one tenth), approximately, approximately, principally (not more than twice or less than half, respectively), substantially, nearly, identical (except for one or two common decimal places).
  • the term “near” is intended to encompass the following term, that is, in this example, the term “identical”.
  • a method for producing an injector at least two, preferably three, mechanical games relevant for injection quantities, leakage quantities and / or pressure differences of the injector, in particular pairing games, are matched, in particular paired.
  • the successive adjustment or the pairing of the mechanical plays of the injector can take place such that a leakage inflow to a control chamber of the injector substantially or at least corresponds to a leakage outflow downstream of this control chamber.
  • a pressure difference between a nozzle space and a control space of the injector can remain substantially the same or to decrease. This can alternatively or additionally also be applied to a pressure difference between the or a control chamber and a leakage chamber of the injector.
  • a desired mating clearance of an assembly of the injector can be calculated and matched depending on a common actual mating clearance of another assembly of the injector, possibly taking into account a nominal mating clearance of the paired assembly.
  • This can be a mechanical game two or more other mechanical games are paired, the two or more other mechanical games preferably also matched to each other or can be paired.
  • This can be z. B. carried out according to the invention. Ie. it can z. B. three mechanical games matched or be paired with each other, which preferably takes place successively or in parallel.
  • a first mechanical game is paired with an optimally optimal second game, which is then paired with the best possible third game. It is also possible to pair the second and third games together to the first game. In the latter embodiment, a z. B. too small, d. H. possibly harmful, avoid play. Of course, this is also possible in the case of the first embodiment, as long as the third game is taken into account when setting up the second game or vice versa as a secondary condition. Of course, this approach is also applicable to two, four, or more causally related mechanical games of the injector.
  • At least one module with a paired target pairing clearance can be installed on an assembly already installed on / in a developing injector with an actual pairing clearance.
  • An assignment of a set pairing clearance of a second assembly for the actual pairing clearance of a first assembly or of the already partially existing injector preferably follows a successive assembly of the injector.
  • the injector can still be constructed in such a way that an already assembled component does not have to be dismantled again in order to be able to adjust or couple a respective game.
  • the mechanical games of a nozzle needle can z. B. in a guide of the nozzle needle, z. B. a nozzle needle sleeve, a transfer pin in an intermediate plate and / or a control piston in one Control plate adjusted to each other or be paired.
  • Other Components or assemblies are also applicable.
  • Matching or pairing of the mechanical games for an injector may be due to at least one test point and / or at least one test run for individual assemblies or assemblies or components mounted to each other. Ie. Measurements of pressures, leakages, dimensions, and / or other parameters may be determined at one or a plurality of test points and / or series of tests for a single particular assembly or for mated assemblies or components for a hypothetical injector.
  • a relevant mechanical clearance ie an actual pairing clearance
  • a gas leakage measurement by a flow measurement, by diameter determinations and / or by shape determinations.
  • the method can be carried out in time after a separate pre-assembly of at least two individual assemblies.
  • the successive adjustment or pairings of the at least two individual assemblies is taken into account for a final assembly of an injector.
  • the method can be carried out in a final assembly of the injector.
  • the injector at least two mechanical games relevant for injection quantities, leakage quantities and / or pressure differences of the injector, in particular mating games, are matched to one another, in particular paired with one another.
  • the mutually adjusted or paired mechanical games for example, a nozzle needle in a guide of the nozzle needle, z. B. a nozzle needle sleeve, a transmission pin in an intermediate plate and / or a control piston in a control plate.
  • the injector is free from a control valve or servo valve controlling the injection quantities of the injector.
  • An actuator of the injector is preferably a piezoelectric actuator.
  • an injector / injector scattering is reduced when the injectors are mounted by coordinating function-relevant mating games for an outflowing leakage on the one hand and an incoming leakage on the other hand in a suitable manner within an assembly process of the injectors.
  • the dispersion in a series production is reduced in relation to an injector function, and a proportion of those injectors, which do not meet required tolerances of their injection quantities, can be reduced.
  • an expense of necessary rework can be reduced. This affects individually and in total in a reduction of the manufacturing costs.
  • the invention is explained in more detail below with reference to a piezoelectrically operated common rail diesel injector 1 for an internal combustion engine of a motor vehicle (see Fig. 1 ).
  • the invention is not limited to such diesel injectors 1, but can, for. B. also be applied to pump-nozzle fuel injectors or gasoline injectors with a single or multi-part nozzle needle, and typical gasoline injectors designations can be found in the list of reference numerals. Therefore, the following is only an injector 1.
  • An injectable fluid may be a fuel, but it is of course possible, by means of an injector according to the invention, another fluid such. As water, an oil or any other process fluid to inject. Ie. the injector according to the invention is not limited to the automotive industry.
  • the Fig. 1 shows the injector 1 substantially in a sectional view, wherein the injector 1 comprises a nozzle assembly 10 and an injector 40.
  • the nozzle assembly 10 and the injector assembly 40 are fixed fluid tight to each other by means of a nozzle lock nut 60.
  • the injector assembly 40 has an injector body 400, in which an actuator 410 is provided, which is preferably designed as a piezoelectric actuator 410.
  • an electromagnetic actuator is also applicable.
  • the piezoelectric actuator 410 drives a one-piece, preferably integral, nozzle needle 110 hydraulically directly (see also FIG Fig. 2 ).
  • the one-piece inwardly opening nozzle needle 110 may optionally be formed in two or more parts and / or be configured to open outwardly in the injector 1.
  • the injector body 400 has a high-pressure-side fluid connection (not visible) for the fuel to be injected, the fluid connection being in fluid communication with a high-pressure bore 402 formed in the injector body 400.
  • a high-pressure side fluid port of the injector 1 with a high-pressure fluid circuit (not shown) is hydraulically connected.
  • the high-pressure bore 402 supplies the nozzle assembly 10 and thus a nozzle chamber 102 of the injector 1 with fuel under high pressure p R , z. B. a so-called rail pressure p R (common rail system).
  • p R common rail system
  • the nozzle assembly 10 has a nozzle body 100 with at least one spray hole (not shown) in its nozzle 104 and the nozzle chamber 102, wherein the nozzle needle 110 is arranged displaceably in the nozzle chamber 102 and stored in sections.
  • the nozzle needle 110 is pressed via an energy storage 114, preferably a nozzle needle spring 114, in the direction of its nozzle needle seat inside in the nozzle 104 in order to be securely closed even in an electrically non-energized state of the piezoelectric actuator 410.
  • the nozzle needle 110 is either pressed into its nozzle needle seat or moves away from the nozzle needle seat, as a result of which fuel can be injected.
  • the nozzle assembly 10 further accommodates a control assembly 20 located between the nozzle body 100 and the injector assembly 40 for actuating the nozzle needle 110 based on an elongation of the piezoactuator 410 in response to its energy E or charge E, that is, an electrical voltage applied thereto.
  • the Fig. 2 shows the components of the control assembly 20 for a direct hydraulic coupling of an elongation movement of the piezoelectric actuator 410 and thereby caused movement of the nozzle needle 110.
  • the piezoelectric actuator 410 has for this purpose Bottom plate 412 with a preferably integral Betsch Trentsfortsatz that is in direct mechanical contact with a transmission pin 212, which is fitted and / or paired with a very small clearance in a pin hole 211 an intermediate plate 210 of the control assembly 20.
  • a mating clearance of the transmission pin 212 in the pin bore 211 is chosen to be so small, e.g. B. about 1um that even at a high rail pressure p R of up to over 2,500bar only a small fuel leakage L at the transfer pin 212 occurs (drops).
  • the pin bore 211 connects a first control chamber 22, which is also referred to as a piston control chamber 22 and in which a slightly lower fuel pressure than the actual rail pressure p R > p 22 prevails, with a leakage chamber 42 of the injector 1, preferably with an ambient pressure p ⁇ is in permanent fluid communication.
  • the leakage space 42 is preferably in fluid communication with a leakage port 404 of the injector 1.
  • there is a large pressure difference ⁇ p p 22 -p ⁇ the z. B. in the above assumed 2,500bar maximum pressure and a closed injector 1 may well exceed a value of 2,450 bar.
  • the first control chamber 22 communicates with a second control chamber 12, the so-called needle control chamber 12, preferably in permanent fluid communication through a connecting bore 17 through a section of the control assembly 20.
  • a damping throttle 232 designed as a fluid throttle 232 may be provided, which is preferably formed in a separate plate 230 of the control assembly 20.
  • a stroke (elongation) of the piezoactuator 410 is transmitted by means of the transfer pin 212, which is also referred to as leakage pin 212, to a control piston 222, which enters a piston bore 221 a control plate 220 of the control module 20 fitted and / or paired.
  • the transmission pin 212 engages on / in the first control chamber 22 at an upper end face 223 of the control piston 222, wherein the control piston 222 is supported on its lower end face 224 by an energy storage device 225 preferably designed as a spiral spring 225.
  • At the lower end face 224 of the control piston 222 there is preferably substantially a rail pressure p R , this end face 224 preferably being in permanent fluid communication with the nozzle chamber 102.
  • the second control chamber 12 is formed by an end face of an upper longitudinal end portion 112 of the nozzle needle 110, the so-called needle piston 112, a wall of a needle bore 121 in an upper guide 120 of the nozzle needle 110, preferably a nozzle needle sleeve 120, and a lower end face of the plate 230.
  • the needle piston 112 of the nozzle needle 110 is facing away from a nozzle needle tip of the nozzle needle 110 or the nozzle 104 of the nozzle body 100.
  • a pressure drop ⁇ p 22 is generated in the first control chamber 22 , which is transmitted via the connecting bore 17 and possibly delayed by the optional fluid throttle 232 to the upper end face of the nozzle needle 110 in the second control chamber 12 ,
  • a stroke of the nozzle needle 110 can be controlled or controlled via an opening of the nozzle needle 110 via a variation of the stroke of the piezoelectric actuator 410.
  • the stroke of the piezoelectric actuator 410 can be varied via a variation of its intrinsic electrical energy E, that is, the voltage applied to it.
  • the injector 1 has three internal leakages L or leakage flows L or quantities L.
  • a leakage L 222 on the control piston 222 ie between the control plate 220 and the control piston 222 through the piston bore 211 therethrough.
  • Leakage L is always the result of a pressure difference ⁇ p of the fuel at / in a component or on / in an assembly.
  • leakages L and / or pressure differences ⁇ p within the nozzle assembly 10 and / or the control assembly 20 are paired; ie corresponding components and / or assemblies are paired in the sense of a read pairing, which in the The following is explained in more detail.
  • transmission pin 212 and intermediate plate 210 transmission pin 212 and intermediate plate 210
  • control piston 222 and control plate 220 control piston 222 and control plate 220
  • nozzle needle 110 or needle piston 112 and nozzle needle sleeve 120 form three such assemblies within the meaning of the invention.
  • the leakage L 212 at the transfer pin 212 - the fuel pressure in a downstream leakage path toward the leakage port 404 corresponds approximately to the ambient pressure p ⁇ (see above) - also results in an outflow of fuel from the first control chamber 22 which leads to a pressure drop ⁇ p in the first control chamber 22 to the pressure p 22 .
  • This leakage discharge L 212 is compensated by a leakage inflow L 112 + L 222 in the nozzle needle sleeve 120 and on the control piston 222.
  • the three games have an influence on a metering accuracy of the injector 1
  • a combination of the mating games before or during an assembly of the injectors 1 optimized, ie improved. This is explained by way of example below.
  • the outflowing leakage L 212 is determined substantially via the mating clearance between the transfer pin 212 and the intermediate plate 210. Since it is currently very complex, geometric tolerances of the pin hole 211 in the intermediate plate 210 and the transfer pin 212 to detect sufficiently accurate, z. B. by means of a gas leakage measurement during assembly, a pre-assembly and / or a test assembly, an integral value with respect to an expected leakage discharge L 212 can be determined. This expected value of the leakage drain L 212 sets set values ⁇ d soll of the mating clearances for the control piston 222 in the control plate 220 and the needle piston 112 in the nozzle needle sleeve 120.
  • the control piston 222 of the control plate 220 and the piston bore 211 is paired.
  • a resulting Istfarungsspiel .DELTA.d is can from the target mating game .DELTA.d will vary within an allowable tolerance.
  • the control piston 222 in the control plate 220 is to be selected.
  • a flow of fuel through an ideal annular gap at a given pressure difference ⁇ p and viscosity of the fuel is proportional to the diameter of an annular gap multiplied by the cube of the gap divided by a gap length.
  • Eccentricity of backlashes may affect a resulting fuel flow rate in the range of a factor of 0.5 to 2.5. If necessary, this parameter can be z. B. be taken into account on a statistical basis. Based on this relationship can be in dependence of a deviation of the game of the control piston 222 from the setpoint .DELTA.d should the Desired value ⁇ d should match the mating clearance of the nozzle needle sleeve 120. the nozzle needle 110 is determined, ie calculated.
  • Fig. 3 this method according to the invention is shown in the form of a flow chart.
  • the applied inventive method can also be applied in a reverse order, so that the play on the nozzle needle sleeve 120 (other or second mechanical game) is used as an output parameter and a game to be adjusted on the control piston 222 (other or third mechanical game) is calculated from it what is in the flowchart in the Fig. 4 is clarified.
  • the Fig. 5 shows the one Fig. 3 and Fig. 4 is an analogous diagram for selecting the second and third mechanical play, respectively, based on the actual value of a first mechanical clearance at the transfer pin 212 (mechanical output clearance). - In principle it is possible, any of the apply three games as the original game and the other two games, again in any order, according to the invention set, so to pair the relevant modules.
  • a simplification of the calculation according to the invention can be carried out, for example, in that in dependence of the Istfarungsspiels .DELTA.d is the transfer pins 212 in the intermediate plate 210 and the measurement value from the gas leakage measurement, a target value .DELTA.d is intended for a sum (the PaarungsInstitut) from the mating game on the control piston 222 and the mating clearance in the nozzle needle sleeve 120 is determined.
  • the set pairing clearance ⁇ d soll for the nozzle needle 110 in the nozzle needle sleeve 120 results from a difference between the specified sum of the pairing games and a determined Istcruungsspiel ⁇ d is the control piston 222 in the control plate 220.
  • a pairing of at least two modules of the injector 1 to each other takes place, wherein at least one This assembly itself is a consequence of a pairing of two components of this assembly.
  • pairings are paired, ie paired components, namely those of the first assembly, are paired into paired components, namely those of the second assembly, in the form that the pairing of the second assembly is established, ie paired, with respect to the pairing of the first assembly becomes. All pairings can be considered as read pairing.
  • These pairings act in fluid-mechanically at least temporarily in the injector 1 such that a flow of fuel through the first "pairing" has an influence on a flow of the fuel through the second "pairing".
  • pairing of pairs can also be applied to three (see above) or more assemblies, which may consist of paired components.
  • assemblies instead of an assembly, to pair a single component, which in such a case can be referred to as an assembly, to an assembly of already paired components.
  • an order of pairing assemblies that is, pairing pairings, may be arbitrary, with an output assembly preferably paired as nominally as possible with respect to their fuel flow.
  • the output module is preferably that module which is mounted on the injector 1 as the first of the modules zuzupodenden.
  • a preferred output module is therefore the transmission pin 212 in the pin hole 211 of the intermediate plate 210.
  • the further Zufaren is then preferably a progressive structure of the injector 1 in the form that already mounted assemblies preferably no longer need to be dismantled.
  • a respective partial injector (1) determines, on the basis of its measured, calculated and / or estimated leakage behavior, a pair of the assembly (s) or components (n) still to be mounted. Other orders of Zuschreibens or the assembly of the injector 1 are of course applicable.

Landscapes

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

Claims (7)

  1. Procédé de fabrication d'un injecteur, en particulier d'un injecteur de carburant (1) pour un système d'injection directe d'un moteur à combustion interne, caractérisé en ce que l'on couple l'un à l'autre au moins deux jeux mécaniques (110/120, 210/212, 220/222), en particulier des jeux de couplage (110/120, 210/212, 220/222), pertinents pour des débits d'injection, des débits de fuite (L112, L212, L222) et/ou des différences de pression (Δp = pR - p12 ≈/= Δp = pR - p22) de l'injecteur (1), par le fait que l'on calcule un jeu de couplage de consigne (Δdcons) d'un groupe de construction (110, 120; 210, 212; 220, 222) de l'injecteur (1) à un jeu de couplage réel mesuré (Δdréel) d'un autre groupe de construction (110, 120; 210, 212; 220, 222) de l'injecteur (1) et on opère le couplage en fonction de ceci, dans lequel on tient éventuellement compte d'un jeu de couplage nominal (Δdnom) du groupe de construction couplé (110, 120; 210, 212; 220, 222).
  2. Procédé de fabrication selon la revendication précédente, caractérisé en ce que l'on couple l'un à l'autre des jeux mécaniques (110/120, 210/212, 220/222) de l'injecteur (1) de telle manière qu'un débit de fuite entrant (L112, L222) vers une chambre de commande (22) de l'injecteur (1) corresponde essentiellement au moins à un débit de fuite sortant (L212) en aval de la chambre de commande (22), et/ou qu'une différence de pression (Δp = pR - p12 ≈/= Δp = pR - p22) entre un espace de buse (102, pR) et une chambre de commande (12, p12; 22, p22) de l'injecteur (1) reste essentiellement constante ou diminue.
  3. Procédé de fabrication selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on couple à un jeu mécanique (110/120, 210/212, 220/222) deux autres jeux mécaniques (110/120, 210/212, 220/222), dans lequel on couple de préférence également l'un à l'autre les deux autres jeux mécaniques (110/120, 210/212, 220/222).
  4. Procédé de fabrication selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on ajoute à un groupe de construction (110, 120; 210, 212; 220, 222) avec un jeu de couplage réel (Δdréel) installé sur/dans un injecteur existant (1), sur/dans l'injecteur (1) au moins un groupe de construction (110, 120; 210, 212; 220, 222) avec un jeu de couplage de consigne couplé (Δdcons).
  5. Procédé de fabrication selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on couple l'un à l'autre les jeux mécaniques (110/120, 210/212, 220/222) d'un pointeau (110) dans un guide (120) du pointeau (110), à une broche de transmission (212) dans une plaque intermédiaire (210) et/ou à un piston de commande (222) dans une plaque de commande (220).
  6. Procédé de fabrication selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on opère le couplage des jeux mécaniques (110/120, 210/212, 220/222) pour un injecteur (1), sur la base d'au moins un point de test et/ou d'au moins une série de test pour des groupes de construction individuels (110, 120; 210, 212; 220, 222) ou pour d'autres pièces montées l'une sur l'autre.
  7. Procédé de fabrication selon l'une quelconque des revendications précédentes, caractérisé en ce que
    • on détermine un jeu mécanique concerné (110/120, 210/212, 220/222) par une mesure de fuite de gaz, par une mesure de débit, par des déterminations de diamètre et/ou par des déterminations de forme;
    • on exécute le procédé temporellement après un pré-montage séparé d'au moins deux groupes de construction individuels (110, 120; 210, 212; 220, 222);
    • le couplage desdits au moins deux groupes de construction individuels (110/120; 210/212; 220/222) est pris en compte pour un montage final d'un injecteur (1);
    • on exécute le procédé lors d'un montage final de l'injecteur (1); et/ou
    • l'injecteur (1) est configuré selon l'une quelconque des revendications 13 à 15.
EP14731663.2A 2013-06-26 2014-06-23 Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur Not-in-force EP3014096B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013212330.2A DE102013212330A1 (de) 2013-06-26 2013-06-26 Verfahren zum Herstellen von Injektoren, insbesondere Kraftstoffinjektoren, sowie Injektor
PCT/EP2014/063129 WO2014206924A1 (fr) 2013-06-26 2014-06-23 Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur

Publications (2)

Publication Number Publication Date
EP3014096A1 EP3014096A1 (fr) 2016-05-04
EP3014096B1 true EP3014096B1 (fr) 2018-09-19

Family

ID=50979787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14731663.2A Not-in-force EP3014096B1 (fr) 2013-06-26 2014-06-23 Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur

Country Status (5)

Country Link
US (1) US10180123B2 (fr)
EP (1) EP3014096B1 (fr)
CN (2) CN108518293A (fr)
DE (1) DE102013212330A1 (fr)
WO (1) WO2014206924A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013212330A1 (de) 2013-06-26 2014-12-31 Continental Automotive Gmbh Verfahren zum Herstellen von Injektoren, insbesondere Kraftstoffinjektoren, sowie Injektor
DE102015211024B4 (de) * 2015-06-16 2017-07-20 Continental Automotive Gmbh Überwachungsverfahren zur Überwachung einer Leckagebilanz in einer Injektoranordnung, Ansteuerungsverfahren zum Ansteuern einer Injektoranordnung und elektronische Steuereinheit
DE102015220056A1 (de) * 2015-10-15 2017-04-20 Continental Automotive Gmbh Piezoinjektor
DE102015226388A1 (de) * 2015-12-21 2017-06-22 Continental Automotive Gmbh Piezoinjektor
DE102016220074B4 (de) * 2016-10-14 2023-02-02 Vitesco Technologies GmbH Piezo-Common-Rail-Injektor mit hydraulischem Spielausgleich über Bewegung des Ventilsitzes
JP6780590B2 (ja) * 2017-03-02 2020-11-04 株式会社デンソー エジェクタモジュール

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011079468A1 (de) * 2011-07-20 2013-01-24 Continental Automotive Gmbh Piezoinjektor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6085726A (en) * 1998-05-20 2000-07-11 Navistar International Transportation Corp. Fuel injector
US7377040B2 (en) * 2003-12-19 2008-05-27 Continental Automotive Systems Us, Inc. Method of manufacturing a polymeric bodied fuel injector
DE102004017303A1 (de) 2004-04-08 2005-10-27 Robert Bosch Gmbh Einspritzdüse
DE102004021652A1 (de) 2004-05-03 2005-12-01 Siemens Ag Verfahren zum Herstellen eines Injektors
US7984550B2 (en) * 2006-10-30 2011-07-26 Caterpillar Inc. Fuel injector remanufacturing method and remanufactured fuel injector
DE502007002482D1 (de) 2007-03-15 2010-02-11 Ford Global Tech Llc Injektor
US8055437B2 (en) * 2009-03-17 2011-11-08 Ford Global Technologies, Llc CO2 information display and method
DE102009027103A1 (de) 2009-06-23 2010-12-30 Robert Bosch Gmbh Ventilmodul mit fest eingestelltem Ankerhub
DE102009045348A1 (de) * 2009-10-06 2011-04-07 Robert Bosch Gmbh Kraftstoffeinspritzventil und dessen Herstellung
DE102013212330A1 (de) 2013-06-26 2014-12-31 Continental Automotive Gmbh Verfahren zum Herstellen von Injektoren, insbesondere Kraftstoffinjektoren, sowie Injektor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011079468A1 (de) * 2011-07-20 2013-01-24 Continental Automotive Gmbh Piezoinjektor

Also Published As

Publication number Publication date
US20160146169A1 (en) 2016-05-26
CN108518293A (zh) 2018-09-11
CN105308302B (zh) 2019-07-05
EP3014096A1 (fr) 2016-05-04
DE102013212330A1 (de) 2014-12-31
CN105308302A (zh) 2016-02-03
WO2014206924A1 (fr) 2014-12-31
US10180123B2 (en) 2019-01-15

Similar Documents

Publication Publication Date Title
EP3014096B1 (fr) Procédé de fabrication d'injecteurs, en particulier d'injecteurs de carburant, ainsi qu'injecteur
EP2734724B1 (fr) Injecteur piézoélectrique
EP1836386B1 (fr) Procede et dispositif de commande d'un injecteur
DE102006059070A1 (de) Kraftstoffeinspritzsystem und Verfahren zum Ermitteln eines Nadelhubanschlags in einem Kraftstoffeinspritzventil
WO2006061113A1 (fr) Procede pour commander un actionneur piezoelectrique, et unite de commande pour commander un actionneur piezoelectrique
DE112009000172T5 (de) Kraftstoffinjektor und Montageverfahren dafür
DE102006003861A1 (de) Verfahren zum Betreiben einer Kraftstoffeinspritzvorrichtung, insbesondere eines Kraftfahrzeugs
EP2387661B1 (fr) Injecteur de carburant pour moteurs à combustion interne
DE202014010759U1 (de) Elektronischer Kraftstoff-Einspritz-Zerstäuber für ein Kraftstoff-Einspritzsystem für einen Verbrennungsmotor
EP2909467A1 (fr) Injecteur piézo-électrique
EP2206912B1 (fr) Injecteur de carburant
DE102008032133A1 (de) Kraftstoffeinspritzvorrichtung
EP2670970A1 (fr) Injecteur de carburant
EP3055549B1 (fr) Ensemble piston-conduit de fluide, en particulier ensemble piston de commande-alésage de commande
WO2015078629A1 (fr) Injecteur de carburant
WO2006037693A1 (fr) Systeme de carburant pour un moteur a combustion interne
EP1651858B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne
WO2006058604A1 (fr) Injecteur de carburant
WO2005095786A1 (fr) Unite pompe-buse comportant une soupape magnetique et procede de montage de la soupape magnetique
DE102007061946A1 (de) Verfahren zum Betreiben einer Kraftstoff-Einspritzvorrichtung
DE102010014208A1 (de) Verfahren und Vorrichtung zum Betreiben eines Einspritzventils
WO2017060154A1 (fr) Injecteur de fluide conçu pour faire fonctionner un véhicule automobile, et procédé de production d'un injecteur de fluide
DE102005004405A1 (de) Düsenbaugruppe und Einspritzventil
DE102015211024B4 (de) Überwachungsverfahren zur Überwachung einer Leckagebilanz in einer Injektoranordnung, Ansteuerungsverfahren zum Ansteuern einer Injektoranordnung und elektronische Steuereinheit
DE102013224960A1 (de) Kraftstoffinjektor

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160126

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170303

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180507

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1043531

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181015

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014009524

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180919

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

Ref country code: NO

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

Effective date: 20181219

Ref country code: BG

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

Effective date: 20181219

Ref country code: GR

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

Effective date: 20181220

Ref country code: LT

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

Effective date: 20180919

Ref country code: FI

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

Effective date: 20180919

Ref country code: RS

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

Effective date: 20180919

Ref country code: SE

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

Effective date: 20180919

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: AL

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

Effective date: 20180919

Ref country code: LV

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

Effective date: 20180919

Ref country code: HR

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

Effective date: 20180919

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

Ref country code: EE

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

Effective date: 20180919

Ref country code: PL

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

Effective date: 20180919

Ref country code: IS

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

Effective date: 20190119

Ref country code: ES

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

Effective date: 20180919

Ref country code: IT

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

Effective date: 20180919

Ref country code: NL

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

Effective date: 20180919

Ref country code: CZ

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

Effective date: 20180919

Ref country code: RO

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

Effective date: 20180919

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

Ref country code: SK

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

Effective date: 20180919

Ref country code: SM

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

Effective date: 20180919

Ref country code: PT

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

Effective date: 20190119

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014009524

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: DK

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

Effective date: 20180919

26N No opposition filed

Effective date: 20190620

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

Ref country code: SI

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

Effective date: 20180919

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502014009524

Country of ref document: DE

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

Ref country code: MC

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

Effective date: 20180919

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20190623

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

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

Ref country code: TR

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

Effective date: 20180919

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

Ref country code: IE

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

Effective date: 20190623

Ref country code: DE

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

Effective date: 20200101

Ref country code: GB

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

Effective date: 20190623

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

Ref country code: LI

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

Effective date: 20190630

Ref country code: LU

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

Effective date: 20190623

Ref country code: CH

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

Effective date: 20190630

Ref country code: BE

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

Effective date: 20190630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502014009524

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE

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

Ref country code: FR

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

Effective date: 20190630

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1043531

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190623

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

Ref country code: AT

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

Effective date: 20190623

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

Ref country code: CY

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

Effective date: 20180919

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

Ref country code: HU

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

Effective date: 20140623

Ref country code: MT

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

Effective date: 20180919

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

Ref country code: MK

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

Effective date: 20180919