EP1543238B1 - Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant - Google Patents

Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant Download PDF

Info

Publication number
EP1543238B1
EP1543238B1 EP04706679A EP04706679A EP1543238B1 EP 1543238 B1 EP1543238 B1 EP 1543238B1 EP 04706679 A EP04706679 A EP 04706679A EP 04706679 A EP04706679 A EP 04706679A EP 1543238 B1 EP1543238 B1 EP 1543238B1
Authority
EP
European Patent Office
Prior art keywords
component
bore
distance
stepped bore
ferrule
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.)
Expired - Fee Related
Application number
EP04706679A
Other languages
German (de)
English (en)
Other versions
EP1543238A1 (fr
Inventor
Jürgen Dick
Willibald SCHÜRZ
Martin Simmet
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
Priority to EP08008299A priority Critical patent/EP1965072B1/fr
Publication of EP1543238A1 publication Critical patent/EP1543238A1/fr
Application granted granted Critical
Publication of EP1543238B1 publication Critical patent/EP1543238B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • 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
    • 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
    • F02M61/188—Spherical or partly spherical shaped valve member ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making
    • Y10T29/49416—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting
    • Y10T29/49417—Valve or choke making with assembly, disassembly or composite article making with material shaping or cutting including molding or casting

Definitions

  • the invention proceeds from a method for determining a position of a second component in a stepped bore of a housing, in particular an injector housing, which has two bores with two different diameters, wherein the second component is arranged in the second bore with a predetermined distance to a first component is to be, which is already fixed in the smaller first bore and wherein in the larger second bore an embossing ring is inserted to a stage of the stepped bore, the squeezing a punch compresses until the predetermined distance is achieved to the first component and then wherein the second Component is inserted to the compressed stamping ring.
  • injectors for fuel injection into an internal combustion engine having a piezoelectric actuator as a drive unit must be manufactured with the greatest precision, since on the one hand, the change in length of the actuator generated by a voltage pulse is only in the micron range and thus extremely minimal.
  • the quantities of fuel to be injected must be precisely metered in order to optimize the combustion processes in the engine and to comply with the required emission limits.
  • the mechanical parts of the injector must be made with the utmost precision. Even length measures with tight manufacturing tolerances can add up to impermissible errors in the sum.
  • a method has become known in which a stamped disc is introduced into a stepped bore of an injector.
  • the embossing disc is placed on the stage, which adjusts at the transition of two holes of the stepped bore.
  • the embossing disk is then pressed together with an embossing tool until the desired distance to a first component already fixed in the stepped bore is reached.
  • an electrical sensor is installed isolated at the top of the embossing die, which delivers a shutdown signal to a drive unit of the embossing die, as soon as the fixed first component is touched.
  • the object of the invention is to position in a housing, in particular in an injector for the fuel injection, the position of the components which are to be installed in the housing, with a predetermined distance in a stepped bore of the housing exactly.
  • the object is to provide an improved injector. The object is achieved with the features of the independent claims 1 and 7.
  • the inventive method for setting a position of a second component in a stepped bore with the characterizing features of claim 1 has the advantage that the measuring point is outside the bore and the distance from the fixed part in the bore can be read on a probe, the one Reference dimension between the protruding end of the probe and a reference mark of the stamping die forms.
  • the measurement process can be controlled at any time in a simple manner, so that the manufacturing reliability improves. It is considered to be particularly advantageous that the embossing process can be continuously monitored and thus already the approximation to the reference dimension can be easily observed and checked.
  • the reference dimension can be greater by a predetermined value than the predetermined distance. This achieves in an advantageous manner that after installation, the two components have a certain distance from each other, which can be used as Leerhub for the actuator.
  • a particularly simple detection of the reference dimension is given with a known mechanical or optical measuring devices such as feeler gauge, dial gauge, eyepiece, camera, interference method, etc.
  • the measuring devices work reliably and are easy to operate even by untrained personnel.
  • a preferred and advantageous application of the method is seen in an injector for fuel injection, since here the distance between the components to be installed in the stepped bore of the injector housing must be maintained with particularly high precision.
  • a piezoelectric actuator due to its physical properties has only a very small change in length
  • maintaining the exact distance to a second component, such as a servo valve, a Düsenn redesign, a deflection or the like is particularly important to use the available change in length of the actuator as completely as possible to be able to.
  • the ring width of the stamping ring is greater than the step width of the stepped bore. This results in a better bearing surface for the second component, which can be positioned thereby safer and more accurate in the stepped bore.
  • a smooth and, in particular, polished bearing surfaces of the stamping ring also appear to be advantageous. Such precise surface would be very difficult to produce at the stage directly and with considerable additional effort, since the stage sits relatively deep in the hole and thus difficult to reach with a tool.
  • FIG. 1a shows two embodiments of the invention with an injector
  • FIG. 1b shows an enlarged section of the injector
  • FIG. 2 shows a longitudinal section through an injector.
  • FIG. 1a a housing 1 is shown in a schematic representation, which has a stepped bore 6 in the axial direction.
  • the housing 1 may very generally be an assembly into which two components 2, 10 are to be installed with a predetermined distance from each other exactly and with small tolerances.
  • an injector housing is used as the housing 1, in which the two components 2 and 10 are to be installed.
  • the first component 2 is, for example, an actuator, in particular a piezoelectric actuator.
  • a second component 10 should be installed with a predetermined distance H to the first component 2. But the first component 2 may also be a bottom plate of the actuator or the like.
  • the second component 10 is designed as an actuator, in particular it may be a Hubumramer, a nozzle body or an actuator of a servo valve or the like, which is to be actuated by the piezoelectric actuator 2.
  • the first component 2 Before the second component 10 can be installed, the first component 2 is first inserted and fixed in a first hole 6 a of the stepped bore 6 as accurately as possible at a designated location.
  • An underside 17 a of the first component 2 forms a first reference surface for the predetermined distance H.
  • the first bore 6 a is in the upper part of FIG. 1 recognizable and has a first diameter d1, which is smaller than a second diameter d2 of a second bore 6b.
  • the second bore 6b is arranged in the lower part of the stepped bore 6. At the transition between the two holes 6a, 6b forms an annular step 16 due to the different diameters d1, d2.
  • a stamping ring 3 is inserted into the second bore 6b with the larger diameter d2 until it rests on the annular step 16 of the stepped bore 6.
  • the stamping ring 3 is formed such that it does not impair the function of the second component 10 to be subsequently installed.
  • the underside 17a of the first component 2 fixed in the first bore 6a thus forms a reference base for a distance H at a lower annular surface 17 of the embossing ring 3, with which the second component 10 is to be retained in the second bore 6b after embossing of the embossing ring 3 ,
  • the height of the stamping ring 3 is selected so that by compressing the stamping ring 3, the distance H, which is predetermined as a nominal size and measured between the bottom 17 a of the first component 2 and the lower annular surface 17 of the stamping ring 3, are produced with a predetermined value can.
  • an embossing punch 4 is inserted into the second bore 6b to the lower annular surface 17 of the embossing ring 3.
  • the embossing punch 4 has a central longitudinal bore 18 with a diameter d into which a probe 5 can be inserted until its head end touches the underside 17 a of the first component 2.
  • the length of the probe 5 is dependent on the applied measuring method and is for example so dimensioned that an end piece E of the probe 5 protrudes a small distance from the longitudinal bore 18 of the die 4.
  • a first reference mark B for example as a planar measuring surface, is arranged on the embossing stamp 4. Furthermore, on the tail E of the probe 5, a second reference mark C is applied, which may also be formed as a reference surface. Thus, between the first reference mark B on the embossing punch 4 and the second reference mark C on the probe 5, a reference dimension x are measured or read.
  • the reference dimension x is chosen so that in the presence of the reference dimension x between the first and the second reference mark B, C, the lower annular surface 17 of the stamping ring 3 has the distance H to the bottom 17 a of the first component 2.
  • a marking or scaling 19 is applied to the end part E, at which the depth of the embossing or the distance between the bottom 17a of the first component 2 and the lower annular surface 17 of the embossing ring 3 can be monitored.
  • stamping ring 3 is deformed until the predetermined value x for the reference dimension and thus the distance H between the lower annular surface of the stamping ring 3 and the bottom 17 a of the first component 2 is achieved.
  • the stamping ring 3 is made for this purpose, for example, from a corresponding cold heading and Kaltf thoroughlypressstahl according to DIN 1654 for this purpose.
  • the pressing process can be stopped prematurely when the desired distance H + dx is reached with the mounting dimension x-dx.
  • the method described sets the distance to a precise value, so that the individual component tolerances are compensated effectively and cost-effectively.
  • a measuring device 7 As a measuring device 7, with the reference x or x-dx is detected, all per se known mechanical, optical or electrical measuring arrangements come into question.
  • an optical measuring device 7 of the LM series by Heidenhain GmbH is used, which can be used in particular in automation technology.
  • This measuring device 7 has a laser interferometric probe, with the measurement accuracies are achieved, which are in the nanometer range.
  • a He-Ne laser is used whose light is fed to a miniature interferometer, which is located at the measuring point.
  • the miniature interferometer detects the measuring movement of a measuring spindle, which correspond to the distance between the two reference marks B and C on the embossing punch 4 or on the probe 5, and converts this movement into an optical interference signal.
  • the optical measurement signal is then transmitted via an optical waveguide to an optical evaluation and supply unit and output as a measurement result either on a digital display or on the monitor of a computer.
  • the measuring signal is used to control or switch off the embossing device with the embossing punch 4 when the intended distance H or H + dx or the reference dimension x or x-dx has been reached.
  • an electrical contact can be made between the end piece E of the probe 5 and the die 4, which is easily visible and adjustable from the outside.
  • the electrical contact is adjusted so that it delivers a shutdown signal to the embossing device when reaching the intended reference dimension x or x-dx.
  • FIG. 1a a detail of such an electrical measuring arrangement is shown schematically.
  • a contact lug 31 is arranged, the contact is directed to the longitudinal bore 18.
  • the contact lug can be adjusted in height and optionally set a Leerhub dx.
  • the tail E of the probe 5 is slightly shorter in this case and executed isolated against the die 4.
  • the die 4 moves relative to the probe 5 upwards.
  • the contact lug 31 touches the probe 5, the reference dimension x-dx is reached.
  • the contact lug 31 closes a circuit I via the probe 5 and the punch 4. This signal is then used to complete the embossing process.
  • FIG. 1b shows in an enlarged view the embossing process.
  • the stamping ring 3 which adapts by the stamping process to the contour of the step 16 in the wall of the housing 1.
  • the die 4 which has a flat and smooth embossing surface, which is also precisely ground at 90 ° to the longitudinal axis, it follows that the embossed surface, ie the lower annular surface 17 of the embossing ring 3 is executed rectangular and smooth.
  • the inserted second component 10 lies exactly and without play on the embossing ring 3, so that a predetermined distance H or H + dx or the predetermined reference dimension x or x-dx can be exactly maintained.
  • the stamping ring 3 has accordingly FIG. 1b
  • a ring width d3 which is greater than the width of the step 16, which has a step width d4.
  • the step 16 itself is not as support surface for the second component 10 favorable, since their step width d4 on the one hand is relatively narrow and on the other hand their surface has a certain roughness and unevenness by the processing tools. Another disadvantage would be that the surface is difficult to plan because of the long stepped bore 6.
  • the embossing punch 4 is removed with the probe 5 from the second bore 6b and the second component 10 is inserted until it is placed on the lower annular surface 17 of the compressed embossing ring 3.
  • FIG. 2 shows a schematic representation of a longitudinal section through an injector for fuel injection for an internal combustion engine of a motor vehicle.
  • an injector 1 with a stepped bore 6 can be seen.
  • the step 16 results on the step 16 of the stamping ring 3 is inserted and stamped to the desired thickness with the Einstellcher 12.
  • a piezoelectric actuator has been inserted into the smaller, first bore 6a and attached to the upper part of the housing 1 at a connection point A with the housing 1.
  • the underside 17a of the piezoelectric actuator 2 has, in relation to the lower annular surface 17 of the stamping ring 3, a predetermined installation dimension 15 for the first component 2, the actuator.
  • the Einstellflop 12 of the stamping ring results from the two dimensions 15 and 12 of the predetermined distance H as a measure between the bottom 17 a of the actuator 2 and the lower annular surface 17 of the stamping ring.
  • the second component 10 is designed as a lifting transformer, which acts as a Hubumrocker.
  • the Hubumrocker is free of play on the lower annular surface 17 of the stamping ring 3 and moves according to the arrows shown its lower part upwards when the actuator 2 expands downwards.
  • the Hubumrocker 10 presses on a Plunger 13 on a servo valve 20 so that it is closed.
  • the servo valve 20 controls the fuel drain from a control chamber 21, which is supplied via an inlet throttle with fuel.
  • the control chamber 21 is bounded by a movably mounted nozzle needle 14.
  • the fuel pressure biases the nozzle needle 14 to a sealing seat 24. In this position, the injection holes 25 of the injection valve are closed, which are arranged as seen in the flow direction after the sealing seat of the servo valve 20.
  • the nozzle needle 14 is arranged in the control chamber 21, which is supplied via a supply line 22.
  • the Hubumchurcher 10 is located directly on the bottom 17 a of the actuator 2.
  • an idle stroke between the actuator 2 and the Hubumshifter 10 may be provided.
  • the actuator 2 is activated by applying a voltage, then the actuator 2 expands and presses on the Hubumschreiber 10.
  • the Hubumnovaer moves the plunger 13 upwards, so that lifts off because of the acting fuel pressure, the closing member of the servo valve 20 from the sealing seat. This opens the servo valve 20, so that fuel flows from the control chamber 21. Although it flows through an inlet throttle simultaneously fuel into the control chamber 21, but the inflow is less than the drain. Thus, the pressure in the control chamber 21 decreases. The nozzle needle 14 is thus relieved.
  • Fuel pressure which acts on pressure surfaces of the nozzle needle 14, lifts the nozzle needle 14 from the sealing seat 24.
  • the injection holes 25 are opened and fuel is injected into the combustion chamber of the engine. If the actuator is de-energized, then the servo valve 20 is closed, the pressure in the control chamber 21 increases and the nozzle needle 14 is pressed onto the sealing seat 24. This ends the injection.

Landscapes

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

Abstract

L'invention concerne un procédé et un injecteur pour déterminer une position d'un second élément (10) dans un alésage étagé (6), qui doit adopter une distance (H) exacte prédéfinie, par rapport à un premier élément (2). Pour déterminer la distance (H) entre les deux éléments (2, 10), une virole (3) est d'abord introduite dans un second alésage (6b) de l'alésage étagé (6), jusqu'à ce qu'elle s'applique sur un gradin de l'alésage étagé (6). Un poinçon (4) est ensuite apposé avec un palpeur de mesure (5) situé dans un alésage oblong (d), sur une face annulaire inférieure (17) de la virole (3) ou sur la face inférieure (17a) du premier élément (2) et la virole (3) est comprimée, jusqu'à ce que la distance (H) prédéfinie soit atteinte. La distance (H) est mesurée en une grandeur de référence (x) entre une pièce terminale (E) saillante du palpeur de mesure (5) et un repère de référence (B) en dehors du poinçon (4). Une fois la grandeur de référence (x) atteinte, le processus d'estampage est arrêté.

Claims (7)

  1. Procédé pour fixer une position d'un second élément (10) dans un perçage étagé (6) d'un boîtier (1), en particulier d'un boîtier d'injecteur qui présente deux perçages (6a, 6b) de deux diamètres différents (d1, d2), le second élément (10) devant être disposé dans le second perçage (6b) à une distance prédéterminée (H) d'une face inférieure (17a) d'un premier élément (2), lequel est déjà immobilisé dans le premier perçage (6a) qui possède un plus petit diamètre (d1), et une bague à estamper (3) étant engagée dans le second perçage (6b), qui est plus grand, jusqu'à un épaulement (17) du perçage étagé (6), une surface annulaire inférieure (17) de la bague à estamper (6) étant comprimée par un poinçon d'estampage (4) jusqu'à ce que la distance prédéterminée (H) entre la surface annulaire inférieure (17) de la bague à estamper (3) et le premier élément (2) soit atteinte, caractérisé en ce que, dans le poinçon d'estampage (4), est ménagé un perçage longitudinal (18) dans lequel un palpeur de mesure (5) est enfilé jusqu'au contact du premier élément (2), en ce que, sur le poinçon d'estampage (4), est disposée une première marque de référence (B), et, sur un segment terminal (E) du palpeur de mesure (5), est disposée une seconde marque de référence (C), une cote de référence (x) pour la distance prédéterminée (H) formée étant entre les deux marques de référence (B, C), et en ce que le processus d'estampage est achevé lorsqu'une valeur de la cote de référence (x), qui correspond à une distance souhaitée (H), est atteinte.
  2. Procédé selon la revendication 1, caractérisé en ce que
    - la bague à estamper (3) présente une largeur de bague (d3) qui est plus grande que la largeur de l'épaulement (16) prévu dans le perçage étagé (6) et
    - en ce que, sous l'effet du processus d'estampage, la bague à estamper (3) s'adapte pratiquement au profil de l'épaulement (16).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, pendant l'estampage de la bague à estamper (3), la cote de référence (x) est surveillée à l'aide d'un dispositif de mesure mécanique ou optique (7).
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que la cote de référence (x) est captée au moyen d'un dispositif de mesure électrique (7).
  5. Procédé selon une des revendications précédentes, caractérisé en ce que les deux éléments (2, 10) sont emboîtés dans un perçage étagé (d1, d2) d'un boîtier (1) d'un injecteur de carburant.
  6. Procédé selon une des revendications précédentes, caractérisé en ce que le premier élément (2) est constitué par un actionneur piézo-électrique.
  7. Procédé selon une des revendications précédentes, caractérisé en ce que le premier élément (2) est constitué par une plaque de base de l'actionneur.
EP04706679A 2003-02-04 2004-01-30 Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant Expired - Fee Related EP1543238B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08008299A EP1965072B1 (fr) 2003-02-04 2004-01-30 Injecteur pour l'injection de carburant

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10304458A DE10304458A1 (de) 2003-02-04 2003-02-04 Verfahren zum exakten Positionieren eines Bauteils in einer Stufenbohrung eines Gehäuses sowie Injektor für die Kraftstoffeinspritzung
DE10304458 2003-02-04
PCT/EP2004/000906 WO2004070196A1 (fr) 2003-02-04 2004-01-30 Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08008299A Division EP1965072B1 (fr) 2003-02-04 2004-01-30 Injecteur pour l'injection de carburant

Publications (2)

Publication Number Publication Date
EP1543238A1 EP1543238A1 (fr) 2005-06-22
EP1543238B1 true EP1543238B1 (fr) 2009-03-11

Family

ID=32730729

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08008299A Expired - Fee Related EP1965072B1 (fr) 2003-02-04 2004-01-30 Injecteur pour l'injection de carburant
EP04706679A Expired - Fee Related EP1543238B1 (fr) 2003-02-04 2004-01-30 Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08008299A Expired - Fee Related EP1965072B1 (fr) 2003-02-04 2004-01-30 Injecteur pour l'injection de carburant

Country Status (4)

Country Link
US (1) US7543382B2 (fr)
EP (2) EP1965072B1 (fr)
DE (3) DE10304458A1 (fr)
WO (1) WO2004070196A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005038470B4 (de) * 2005-08-13 2022-08-25 Eckold Gmbh & Co. Kg Umformwerkzeug und Verfahren zum Positionieren des Umformwerkzeugs
EP1918575B1 (fr) * 2006-11-02 2009-10-14 Continental Automotive GmbH Injecteur pour le dosage de fluide et procédé de montage de l'injecteur
EP2921838B1 (fr) * 2014-03-19 2017-10-11 Ansaldo Energia IP UK Limited Sonde pour mesurer des oscillations de pression dans la chambre de combustion d'une turbine à gaz

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5991475U (ja) * 1982-12-13 1984-06-21 株式会社ボッシュオートモーティブ　システム 燃料噴射弁の調整装置
JPH01187363A (ja) * 1988-01-21 1989-07-26 Toyota Motor Corp 内燃機関用燃料噴射弁
WO1996041947A1 (fr) 1995-06-08 1996-12-27 Siemens Automotive Corporation Procede d'ajustage d'un entrefer d'un electro-aimant
US5775600A (en) * 1996-07-31 1998-07-07 Wildeson; Ray Method and fuel injector enabling precision setting of valve lift
DE19821768C2 (de) * 1998-05-14 2000-09-07 Siemens Ag Dosiervorrichtung und Dosierverfahren
DE19856617A1 (de) * 1998-12-08 2000-06-21 Siemens Ag Element zur Übertragung einer Bewegung und Einspritzventil mit einem solchen Element
DE19902807C1 (de) * 1999-01-25 2000-06-08 Siemens Ag Leerhubeinstellung zwischen einem Aktor und einem vom Aktor betätigten Servoventil in einem Kraftstoffinjektor
DE19921242C1 (de) 1999-05-07 2000-10-26 Siemens Ag Verfahren zum Positionieren des Stellantriebs in einem Kraftstoffinjektor und Vorrichtung zur Durchführung des Verfahrens
DE19928916B4 (de) * 1999-06-24 2017-12-14 Robert Bosch Gmbh Brennstoffeinspritzventil
DE19956256B4 (de) * 1999-11-23 2004-04-08 Siemens Ag Leerhubeinstellung zwischen einem Aktor und einem Übertragungselement eines Ventils in einem Kraftstoffinjektor

Also Published As

Publication number Publication date
US7543382B2 (en) 2009-06-09
DE10304458A1 (de) 2004-08-19
EP1965072B1 (fr) 2010-05-26
DE502004009123D1 (de) 2009-04-23
WO2004070196A1 (fr) 2004-08-19
EP1965072A1 (fr) 2008-09-03
US20060005388A1 (en) 2006-01-12
EP1543238A1 (fr) 2005-06-22
DE502004011222D1 (de) 2010-07-08

Similar Documents

Publication Publication Date Title
DE10024662B4 (de) Verfahren zum Betreiben eines Einspritzventils
EP3362699B1 (fr) Dispositif de surveillance pour frein à disque d'un véhicule automobile
DE3441641A1 (de) Fuehler mit optischen fasern zum erfassen von betriebszustaenden und verfahren zu dessen herstellung
DE102008033269A1 (de) Rückschlagventil
EP0915327A1 (fr) Capteur de pression
DE4138305C2 (de) Verfahren zum Herstellen eines Ventilsitzes in der Querwand einer Düse
EP1103718B1 (fr) Réglage de la course entre un actionneur et un élément de transmission pour une soupape dans un injecteur de combustible
EP0244886A2 (fr) Procédé et dispositif pour le contrôle et la saisie des mesures, changements de mesure, positions ou changements de position de pièces à usiner, organes de réglage ou éléments semblables
EP1543238B1 (fr) Procede pour determiner une position d'un element dans un alesage etage d'un carter et injecteur pour l'injection de carburant
DE10037570A1 (de) Brennstoffeinspritzventil und Verfahren zu dessen Einstellung
EP1332280B1 (fr) Soupape d'injection de carburant et procede de reglage
DE10244760A1 (de) Drucksensorbaugruppe
EP2612018A1 (fr) Procédé et dispositif pour ajuster une course à vide d'un entraînement de commande d'une soupape d'injection et module d'injecteur
DE102010014057A1 (de) Einsatzteil für Ventile sowie Sensor, insbesondere zur Komplettierung eines derartigen Einsatzteiles
DE1963988C3 (de) Strömungstaster
DE102016226135A1 (de) Brennstoffeinspritzventil
EP2432982B1 (fr) Procédé de mesure de la levée d'armature d'un injecteur de carburant
EP1651928B1 (fr) Dispositif de mesure et procede pour detecter la position d'un objet de mesure electroconducteur
EP1381773A1 (fr) Soupape d'injection de carburant destinee a des machines a combustion interne
DE19705346C1 (de) Verfahren und Vorrichtung zum Herstellen von Schraubverbindungen
DE3520344A1 (de) Einrichtung zur messung des anpressdruckes zwischen schmitzringen von druckzylindern
DE102020209321A1 (de) Kraftstoffinjektor und Verfahren zur Herstellung eines solchen
DE102014100383A1 (de) Schraubenbefestigungskomponente und deren Herstellungsverfahren
EP0609525B1 (fr) Capteur de pression
DE102021101181A1 (de) Universalkappe für induktive Sensoren

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: 20050414

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20050726

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CONTINENTAL AUTOMOTIVE GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502004009123

Country of ref document: DE

Date of ref document: 20090423

Kind code of ref document: P

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

26N No opposition filed

Effective date: 20091214

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

Effective date: 20100130

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

Ref country code: GB

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

Effective date: 20100130

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

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: 20090311

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130131

Year of fee payment: 10

Ref country code: FR

Payment date: 20130213

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004009123

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20140801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140930

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004009123

Country of ref document: DE

Effective date: 20140801

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: 20140131