EP3014096A1 - Method for producing injectors, in particular fuel injectors, and injector - Google Patents
Method for producing injectors, in particular fuel injectors, and injectorInfo
- Publication number
- EP3014096A1 EP3014096A1 EP14731663.2A EP14731663A EP3014096A1 EP 3014096 A1 EP3014096 A1 EP 3014096A1 EP 14731663 A EP14731663 A EP 14731663A EP 3014096 A1 EP3014096 A1 EP 3014096A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injector
- injectors
- leakage
- assembly
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 45
- 239000007924 injection Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000013011 mating Effects 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 17
- 238000004891 communication Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001364 causal effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 Kraftstoffinj ectors for direct injection systems of power ⁇ vehicles. Furthermore, the invention relates to a method for pairing at least two injectors and a method for
- the invention relates to an injector, in particular a fuel injector for a direct injection system of an internal combustion engine.
- an injector in particular a fuel injector for a direct injection system of an internal combustion engine.
- Kraftstoffinj injectors is controlled by injection of fuel by means of a nozzle needle, which is slidably mounted in the fuel ⁇ injector and an opening cross-section or one or a plurality of spray holes of a nozzle assembly of Kraftstoffinj ektors releases depending on their hub or closes.
- a control of the nozzle needle for example, by means of a piezoelectric actuator, which actuates the nozzle needle hydraulically or mechanically.
- ment requirements of the internal combustion engine are converted into injection quantities, which in turn correlate with an injection duration in dependence on an injection pressure, a stroke of the nozzle needle and a geometry of the fuel injector.
- a deviation of an actual injection quantity from a desired injection quantity of a fuel injector always has negative effects on combustion, that is to say the resulting pollutant emissions, and usually also consumption of the internal combustion engine.
- high demands are placed on the accuracy of the injection quantities and the stability of a
- An injection nozzle of the fuel injector is driven by the nozzle needle, which can be driven, for example, by means of a servovalve actuated 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 piezoactuator and, subsequently, a movement of the nozzle needle can take place hydraulically directly, which brings about significant advantages.
- Reflectors hydraulically for those directly driven ⁇ Kraftstoffinj the same requirements as for controllable by a servo valve injectors apply.
- By means of a hydraulic direct drive however, further advantageous properties of the fuel injectors result.
- the object of the invention is by a method for producing injectors, in particular fuel injectors for
- Direct injection systems of motor vehicles according to claim 1; by a method for pairing at least two injectors, in particular two fuel injectors for a direct injection system of an internal combustion engine, according to claim 3; by a method for producing an injector, in particular a fuel injector, according to claim 5; and solved by means of an In ⁇ vector according to claim 13.
- a method for producing injectors so z. B. a production lot of Injectors, the injectors are set or
- the injectors can be designed such that the total leaks 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 one another, 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 method for pairing at least two injectors, a criterion for the pairing of the injectors is a total leakage and / or a
- 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. As an injection system for a Ver ⁇ internal combustion engine, has at least two injectors.
- 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.
- a method of manufacturing an injector are at least two, preferably three, for injection quantities, leakage rates and / or Druckdif- the injector preferences relevant mechanical games, in particular ⁇ sondere PaarungsInstitut, matched to one another, in particular paired up today.
- 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 pairing clearance of an assembly of the injector can be paired with an actual pairing clearance of another assembly of the injector, possibly taking into account a nominal pairing clearance of the paired-together assembly.
- two or more other mechanical games can be paired with a mechanical game, the two or more .
- a first mechanical game is preferably paired with a preferably optimal second game, which is then paired with a preferably optimal third game. It is also possible to pair the second and third games together to the first game. In the latter embodiment of the invention, a z. B. too small, ie 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. This procedure is na ⁇ Moslich on two, four or more by side in a causal relationship mechanical games of the injector applicable.
- At least one subassembly having a paired target matching clearance can be installed on an assembly already installed on / in an emerging 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 mechanical games of a nozzle needle in a guide of the nozzle needle, z As a nozzle needle sleeve, a transmission pin in an intermediate plate and / or a control piston in a control plate are set to each other or paired. Other Components or assemblies are of course 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.
- Diameter determinations and / or determined by shape determinations can be carried out in time after a separate pre-assembly of at least two individual assemblies. According to the invention, the successive adjustment or pairings of the at least two individual assemblies are taken into account for a final assembly of an injector. Furthermore, the method can be carried out in a final assembly of the injector.
- the injector can be designed as an injector according to the invention (see below). In the injector of the invention, in particular the Kraftstoffinj ector according to the invention, at least two are relevant to the injection quantity, leakage rates and / or pressure differences of the injector mechanical games, in particular approximately Paa ⁇ games, matched to one another, in particular paired up today.
- 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 of a control valve or servo valve controlling the injection quantities of the injector.
- An actuator of the injector is preferably a piezoelectric actuator.
- the injector can be produced by a method according to the invention. According to the invention, it is possible to set up or produce a good to very good, ie as optimal as possible, combination of mating games for the component pairings in an injector assembly with a comparatively low outlay.
- an injector / injector scattering is reduced in a mounting of the injectors in that function-relevant mating games for an outflowing leakage on the one hand and an incoming leakage on the other hand, are suitably coordinated 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.
- FIG. 1 is a longitudinal side view of the invention in ⁇ jektors for a common rail injection system of an internal combustion engine, which is shown in the center and below the center section;..
- Fig. 2 is a centrally cut, broken away at the top and bottom, detailed longitudinal side view of a
- 3 is a flow chart of one embodiment of a method according to the invention for matching or pairing three mechanical games within a nozzle assembly of the injector; 4 shows a flowchart analogous to FIG. 3, which shows a second embodiment of the method according to the invention when matching or representing each other pairs of the three mechanical games;
- Fig. 5 is a schematic diagram according to FIGS. 3 and 4 for
- Fig. 6 is a schematic diagram of an inventive
- the invention is explained below on the basis of a piezoelectrically driven common rail Dieselinj ector 1 in more detail for a Burn ⁇ voltage motor of a motor vehicle (see Fig. 1).
- the invention is not limited to such diesel injectors 1, but can, for. B. on pump-jet fuel injectors ⁇ injectors or gasoline injectors are used with a one- or multi-part nozzle needle, and typical for 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.
- FIG. 1 shows the injector 1 substantially in a sectional view, with the injector 1 comprising a nozzle assembly 10 and an injector assembly 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. 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 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.
- E or charge E that is, an electrical voltage applied thereto.
- 2 shows the components of the control module 20 for a direct hydraulic coupling of an elongation movement of the piezoelectric actuator 410 and a movement of the nozzle needle 110 caused thereby.
- the piezoelectric actuator 410 has one for this purpose Base plate 412 with a preferably integral Betschists ⁇ extension, which is in direct mechanical contact with a transmission pin 212, which is fitted with a very small clearance in a pin hole 211 an intermediate plate 210 of the control assembly 20 and / or paired.
- a mating clearance of the transmission pin 212 in the pin bore 211 is chosen to be so small, e.g. B. lym approximate 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 > P22 prevails, with a leakage chamber 42 of the injector 1, preferably with an ambient pressure p "in permanent fluid communication.
- the leakage space 42 is preferably in fluid communication with a leakage port 404 of the injector 1.
- At the transfer pin 212 there is a large pressure difference ⁇ p 2 2 _ P »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 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 hub (elongation) of the piezoelectric actuator 410 is transmitted to a control piston 222 by means of the over ⁇ tragungspins 212, which is also referred to as Leckagepin 212 in a plunger bore 221 a control plate 220 of the control module 20 fitted and / or paired.
- the transmission pin 212 acts 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 a preferably formed as a Spi ⁇ cal spring 225 energy storage 225.
- the rail pressure p R is preferably substantially prevailing on the lower end face 224 of the control piston 222, this end face 224 preferably being in permanent fluid communication with the nozzle space 102.
- the second control chamber 12 is formed by an end face of an upper longitudinal end section 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.
- this embodiment of the injector 1 which is set out briefly, is not restrictive. The invention is applicable to a variety of other embodiments of injectors, as long as a leakage L and / or a pressure drop ⁇ within the injector can be used as a measure of the quality of the injector.
- 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.
- Nozzle needle 110 securely closed at / on its seat in the nozzle 104 of the nozzle body 100.
- the injector 1 has three internal leakages L or leakage flows L or quantities L.
- Control piston 222 ie between the control plate 220 and the control piston 222 through the piston bore 211 therethrough. This is a leakage inflow L222 in the first control chamber 22 immediately downstream of the control piston 222.
- a leakage pipe L2 1 2 and a total leakage L2 1 2 of the injector 1 results in a leakage L2 1 2 at the transmission spin 212, between the interim ⁇ rule plate 210 and the transmission pin 212 through the pin hole 211 into the leakage space 42.
- Leakage L is always the result of a pressure difference ⁇ of the fuel at / in a component or on / in an assembly.
- leakages L and / or pressure differences ⁇ 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.
- Transfer spin 212 and intermediate plate 210 the preferred among themselves fitted and / or paired components form: Transfer spin 212 and intermediate plate 210, piston 222 and control plate 220, and the nozzle needle 110 and the needle piston 112 and needle sleeve 120, three such assemblies in the sense of He ⁇ invention.
- L2 1 2 L 1 22 + L222 results in a pressure difference ⁇ between the rail pressure p R and a pressure P 1 2, P22 in the relevant control chamber 12, 22 directly from the transmission pin 212, the control piston 222 and the nozzle needle sleeve 120 games set, in particular Paa ⁇ tion games of read pairings.
- initial pressure difference ' ⁇ has as a result of a reduction of a shooting force to the nozzle needle 110 and therefore affects an opening and closing time of the injector 1.
- the outflowing leakage L2 1 2 is essentially determined by 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 L2 1 2 are determined.
- This expected value of the leakage drain L2 1 2 sets target values Ad so n of mating clearances for the control piston 222 in the control plate 220 and the needle piston 112 in the nozzle needle sleeve 120.
- a resulting actual match Adi St may deviate from the target match Ad S o ii within a permitted tolerance.
- a flow of fuel through an ideal annular gap is proportional to the diameter of an annular gap ⁇ multi plied with the third power of the gap dimension divided at a predetermined pressure difference Ap and viscosity of the fuel through a gap length.
- An eccentricity of backlashes may affect a resulting flow of fuel 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 Ad so n the Reference value Ad so n the mating clearance of the nozzle needle sleeve 120 compared. the nozzle needle 110 is determined, ie calculated.
- I222 a length of the control piston 222
- Ad222 nom aNominalcoverungsspie1 of the control piston 222, so the control piston 222 in the control plate 220 and the piston bore 221;
- Ad222 is a Istfarungsspiel the control piston 222, so the
- Adi2o nom a nominal mating clearance of the nozzle needle sleeve 120, so the nozzle needle 110 and the needle piston 112 in the nozzle needle sleeve 120 and the needle bore 121st
- this inventive method 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 , which is illustrated in the flowchart in FIG. 4.
- 5 shows a diagram analogous to FIGS. 3 and 4, respectively, for selecting the second or third mechanical game based on the actual value of a first mechanical game at the transmission pin 212 (mechanical output game).
- a simplification of the calculation according to the invention can be carried out, for example, in that in dependence of the Istfarungsspiels Adi St of the transfer pins 212 in the interim ⁇ rule plate 210 and the measurement value from the gas leakage measurement, a target value Ad so n represents a sum (the PaarungsInstitut) from the pairing Match Control piston 222 and the mating clearance in the nozzle needle sleeve 120 is determined.
- the Sollpocungsspiel Ad so n for the nozzle needle 110 in the nozzle needle sleeve 120 results from a difference between the specified sum of the mating games and a determined Istproungsspiel Adi St of 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 the injector 1 in a fluid-mechanical manner at least temporarily in such a way that a
- 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. Reference sign list
- Ad S oii Matching Game (general)
- Ad222 is Istfarungsspiel control piston 222, so the Steu ⁇ erkolbens 222 in the control plate 220 and the piston bore 221st
- Ad222 nom Nominalprojectungsspie1 control piston 222, so the
- E energy, charge corresponds to the electrical voltage applied to the actuator 410
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013212330.2A DE102013212330A1 (en) | 2013-06-26 | 2013-06-26 | Method for producing injectors, in particular fuel injectors, and injector |
PCT/EP2014/063129 WO2014206924A1 (en) | 2013-06-26 | 2014-06-23 | Method for producing injectors, in particular fuel injectors, and injector |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3014096A1 true EP3014096A1 (en) | 2016-05-04 |
EP3014096B1 EP3014096B1 (en) | 2018-09-19 |
Family
ID=50979787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14731663.2A Not-in-force EP3014096B1 (en) | 2013-06-26 | 2014-06-23 | Method for producing injectors, in particular fuel injectors, and injector |
Country Status (5)
Country | Link |
---|---|
US (1) | US10180123B2 (en) |
EP (1) | EP3014096B1 (en) |
CN (2) | CN108518293A (en) |
DE (1) | DE102013212330A1 (en) |
WO (1) | WO2014206924A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013212330A1 (en) | 2013-06-26 | 2014-12-31 | Continental Automotive Gmbh | Method for producing injectors, in particular fuel injectors, and injector |
DE102015211024B4 (en) * | 2015-06-16 | 2017-07-20 | Continental Automotive Gmbh | A monitoring method for monitoring a leakage balance in an injector assembly, driving method for driving an injector and electronic control unit |
DE102015220056A1 (en) * | 2015-10-15 | 2017-04-20 | Continental Automotive Gmbh | piezoinjector |
DE102015226388A1 (en) * | 2015-12-21 | 2017-06-22 | Continental Automotive Gmbh | piezoinjector |
DE102016220074B4 (en) * | 2016-10-14 | 2023-02-02 | Vitesco Technologies GmbH | Piezo common rail injector with hydraulic play compensation by moving the valve seat |
JP6780590B2 (en) * | 2017-03-02 | 2020-11-04 | 株式会社デンソー | Ejector module |
Family Cites Families (11)
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 (en) | 2004-04-08 | 2005-10-27 | Robert Bosch Gmbh | injection |
DE102004021652A1 (en) | 2004-05-03 | 2005-12-01 | Siemens Ag | Method for producing an injector |
US7984550B2 (en) * | 2006-10-30 | 2011-07-26 | Caterpillar Inc. | Fuel injector remanufacturing method and remanufactured fuel injector |
DE502007002482D1 (en) | 2007-03-15 | 2010-02-11 | Ford Global Tech Llc | injector |
US8055437B2 (en) * | 2009-03-17 | 2011-11-08 | Ford Global Technologies, Llc | CO2 information display and method |
DE102009027103A1 (en) | 2009-06-23 | 2010-12-30 | Robert Bosch Gmbh | Fuel injector for injecting fuel into high-pressure reservoir of internal combustion engine, has valve module housing resting on bearing surface of valve piece of injector, where stroke of actuator is set in direction by bearing surface |
DE102009045348A1 (en) * | 2009-10-06 | 2011-04-07 | Robert Bosch Gmbh | Fuel injection valve and its manufacture |
DE102011079468A1 (en) | 2011-07-20 | 2013-01-24 | Continental Automotive Gmbh | piezoinjector |
DE102013212330A1 (en) | 2013-06-26 | 2014-12-31 | Continental Automotive Gmbh | Method for producing injectors, in particular fuel injectors, and injector |
-
2013
- 2013-06-26 DE DE102013212330.2A patent/DE102013212330A1/en not_active Withdrawn
-
2014
- 2014-06-23 CN CN201810270546.7A patent/CN108518293A/en active Pending
- 2014-06-23 WO PCT/EP2014/063129 patent/WO2014206924A1/en active Application Filing
- 2014-06-23 EP EP14731663.2A patent/EP3014096B1/en not_active Not-in-force
- 2014-06-23 CN CN201480036640.6A patent/CN105308302B/en not_active Expired - Fee Related
- 2014-06-23 US US14/901,340 patent/US10180123B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2014206924A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3014096B1 (en) | 2018-09-19 |
US20160146169A1 (en) | 2016-05-26 |
CN108518293A (en) | 2018-09-11 |
CN105308302B (en) | 2019-07-05 |
DE102013212330A1 (en) | 2014-12-31 |
CN105308302A (en) | 2016-02-03 |
WO2014206924A1 (en) | 2014-12-31 |
US10180123B2 (en) | 2019-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3014096B1 (en) | Method for producing injectors, in particular fuel injectors, and injector | |
EP1825124B1 (en) | Method for controlling a piezoelectric actuator and control unit for controlling a piezoelectric actuator | |
EP2734724B1 (en) | Piezo injector | |
EP2499350B1 (en) | Method of manufacturing a fuel injector | |
EP2536942B1 (en) | High-pressure fuel injection valve for an internal combustion engine | |
DE102014005741A1 (en) | DUAL FUEL INJECTION DEVICE WITH F, A, AND Z TOUCH OPENING CONTROLS | |
DE102006003861A1 (en) | Operating method for fuel injection valve with computer program memory and control especially for a motor vehicle follows voltage or current at piezoelectric element over time to fix valve-closing point | |
EP2888469B1 (en) | Common rail system | |
WO2014095910A1 (en) | Piezo injector | |
DE102008032133A1 (en) | Fuel injector | |
EP2670970A1 (en) | Fuel injector | |
EP2206912A2 (en) | Fuel injector | |
EP3055549B1 (en) | Plunger/fluid-line arrangement, in particular control-plunger/control-bore arrangement | |
EP1799999A1 (en) | Fuel system for an internal combustion engine | |
DE102006000268B4 (en) | Fluid injector | |
DE102005061362B3 (en) | Pressure control valve for injection system of multi-cylinder internal combustion engine, has closing body provided in non-controlled condition of actuator in closing position, where force acting on body is changed by controlling actuator | |
DE102005054437A1 (en) | Fuel injector controller with combined control of the initial injection pressure and the injection peak pressure | |
WO2003091559A1 (en) | Device and method for triggering the piezo actuator of a control valve of a pump-nozzle unit | |
WO2003067073A1 (en) | Method and device for detecting operating states of a pump-nozzle unit | |
DE102010023698A1 (en) | Injector with direct and servo drive | |
DE102009046079A1 (en) | Valve for quantity control of a fuel high pressure pump, comprises a valve element and a stop on which the valve element comes in opened condition in plant, and a damping device with a movable piston limiting a fluid chamber | |
DE10310120B4 (en) | Method for determining the load applied to a piezoactuator, and method and device for controlling a piezoactuator of a control valve of a pump-nozzle unit | |
WO2017060154A1 (en) | Fluid injector for operating a motor vehicle, and method for producing a fluid injector | |
DE102007061946A1 (en) | Fuel injection device operating method for internal-combustion engine, involves detecting closing of valve element based on evaluation of voltage applied on piezoelectric actuator according to actuator load | |
DE102012223006A1 (en) | Method for operation of dosing module of diesel engined motor car, involves operating pump device by actuation of electromagnet, and again-actuating electromagnet before closing valve device opened by previous pumping stroke |
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 |