EP3088729B1 - Injecteur de carburant et dispositif et procede de montage d'un dispositif de mesure - Google Patents

Injecteur de carburant et dispositif et procede de montage d'un dispositif de mesure Download PDF

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Publication number
EP3088729B1
EP3088729B1 EP16165757.2A EP16165757A EP3088729B1 EP 3088729 B1 EP3088729 B1 EP 3088729B1 EP 16165757 A EP16165757 A EP 16165757A EP 3088729 B1 EP3088729 B1 EP 3088729B1
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EP
European Patent Office
Prior art keywords
housing
injector
sensor element
housing element
sensor
Prior art date
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Active
Application number
EP16165757.2A
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German (de)
English (en)
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EP3088729A1 (fr
Inventor
Roland Berner
Dieter Junger
Peter Koblmiller
Axel Bormann
Falko Malt
Torsten Leukert
Martin Forke
Udo Schaich
Fridolin Zeck
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Publication date
Priority claimed from DE102015208488.4A external-priority patent/DE102015208488A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3088729A1 publication Critical patent/EP3088729A1/fr
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Publication of EP3088729B1 publication Critical patent/EP3088729B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/005—Fuel-injectors combined or associated with other devices the devices being sensors
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/003—Measuring variation of fuel pressure in high pressure line
    • 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
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/242—Displacement sensors
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/244—Force sensors
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/247—Pressure sensors
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering

Definitions

  • the invention relates to a fuel injector according to the preamble of claim 1. Furthermore, the invention relates to an apparatus and method for mounting a measuring device.
  • a fuel injector according to the preamble of claim 1 is from the post-published DE 10 2015 206 029 A1 the applicant known.
  • Kraftstoffinjektor is used to detect the closing time of the nozzle needle, wherein this hits its seat in the injector and thereby at least indirectly closes injection openings formed in the injector, using a measuring device with a sensor element designed as a piezoelectric element, which is arranged in the region of a supply bore on the injector , The supply bore supplies a high-pressure space, in which the nozzle needle is arranged, with fuel under high pressure.
  • the injector housing has a deformation region which is designed to be elastically deformable as a function of the fuel pressure in the supply bore.
  • the measuring device has a closed, multi-part housing in which the sensor element or the piezoelectric element is arranged.
  • the sensor housing is in turn directly connected in particular by means of a welded connection with the deformation region.
  • the piezoelectric element is arranged within the sensor housing under axial prestress, for which purpose the sensor housing has two housing elements which are adjustable relative to each other in the axial force direction and which are fixed to one another in the installed state by means of a weld seam.
  • the axial force acted upon piezoelectric element are in particular reduced or equalized tensile stresses that can reduce the life of the piezoelectric element.
  • Characteristic of the known fuel injector or its sensor device is moreover that the piezoelectric element does not lie directly on the surface of the injector housing or rests, but is separated by a housing bottom of the sensor housing of the injector.
  • DE 19813756 discloses a fuel injector wherein the sensor element is held by a Fixierhohlschraube in a blind hole.
  • the present invention seeks to form a fuel injector such that waiving an adhesive bond between the piezo element or the sensor element and the injector a reliable as possible over the entire service life of the fuel injector working arrangement of a measuring device is made possible.
  • tensile stresses on the piezoceramic, which can damage the piezoceramic should also be avoided.
  • a fuel injector with the characterizing features of claim 1, characterized in that the sensor element with its deformation region facing end face rests directly on the deformation region, and that the means for adjusting the biasing force comprises a sensor housing with two housing elements movable relative to each other, which are rigidly connected together in an assembled position at least in the direction of the axial force acting on the piezoelectric element.
  • the two housing elements are arranged in the overlapping area with a joining play each other and welded together.
  • the joining play can be designed in the form of a friction fit between the two housing elements, in order to be able to form a welded joint relatively easily even with housing elements having relatively small wall thicknesses, since no (large) gaps have to be bridged.
  • connection between the two housing elements it may also be provided that the two housing elements are connected to one another in the overlapping area by means of a threaded connection.
  • an additional connection between the two housing elements such as a weld, can be dispensed with, so that the manufacturing process can possibly be simplified compared with the use of a weld seam.
  • the housing elements in contrast to a welded joint, are not thermally stressed in the formation of the compound.
  • a first housing element has a flange-like connection area on the side facing the injector housing for engagement with the injector housing.
  • a second housing element is arranged radially inside the sleeve-shaped housing element.
  • a second housing element which may be formed in particular in the form of a disc or a lid, is thus arranged completely within the contour of the first-mentioned, sleeve-shaped housing element and therefore particularly particularly well protected.
  • a second housing element may be hood-shaped and to comprise the sleeve-shaped housing element on its outer surface with a radially peripheral edge region.
  • the housing elements are made of metal and that a housing member is connected to the injector by means of a welded joint.
  • the invention also includes a device for mounting the measuring or sensor device for a fuel injector described so far, wherein the device comprises a support body with a blind hole-like recess, wherein the recess is adapted to receive the sensor element partially, such that the sensor element at least indirectly rests on the bottom of the recess, wherein the recess is bounded by a contact surface for a housing element, and wherein the recess has a depth corresponding to a difference measure for adjusting the axial biasing force on the sensor element.
  • Such a device is thus suitable to position the two housing elements to each other in a position in which in the assembled state of Housing elements on the injector body which is received within the housing elements sensor element with the appropriate axial biasing force against the deformation region of the injector.
  • a device makes it possible to compensate for manufacturing or tolerance-related geometric differences between the housing elements and / or sensor elements in a particularly simple manner.
  • a sensor device is arranged in the region of the recess of a support body. Subsequently, the arrangement of a first housing element takes place radially around the sensor element, wherein the first housing element rests on a contact surface of the support body. Subsequently, an axial joining of a second housing element takes place relative to the first housing element until the second housing element is at least indirectly in abutting contact with the sensor element. Finally, if necessary, a fixing of the second housing element to the first housing element takes place.
  • the invention comprises a method for mounting a sensor device in a fuel injector according to the invention, the method having at least the following steps: First, a first housing element is fastened to an injector housing. Subsequently, the sensor element is arranged within the first housing element such that the sensor element bears against a surface of the injector housing. Thereafter, the mounting of a second housing element on the first housing element takes place such that the second housing element is arranged at least indirectly in abutting contact with the sensor element. This is followed by the generation of an axial prestressing force on the second housing element and finally possibly fixing of the second housing element to the first housing element.
  • the Indian Fig. 1 fuel injector 10 shown greatly simplified is designed as a so-called common rail injector, and is used to inject fuel into the combustion chamber, not shown, of an internal combustion engine, in particular a self-igniting internal combustion engine.
  • the fuel injector 10 has an injector housing 11, which consists essentially of metal and may have a multi-part design, in which at least one, preferably several injection openings 12 for injecting the fuel are arranged on the side facing the combustion chamber of the internal combustion engine.
  • this forms a high pressure chamber 15, in which a nozzle needle 16 serving as an injection member is arranged in a liftable manner in the direction of the double arrow 17.
  • a nozzle needle 16 serving as an injection member is arranged in a liftable manner in the direction of the double arrow 17.
  • this forms together with the inner wall of the high-pressure chamber 15 and the injector 11 a sealing seat, so that the injection openings 12 are at least indirectly closed, such that the injection of fuel from the high-pressure chamber 15 in the Combustion chamber of the internal combustion engine is avoided.
  • the nozzle needle 16 In the other, not shown, lifted from the sealing seat position of the nozzle needle 16, this releases the injection openings 12 for injecting the fuel into the combustion chamber of the internal combustion engine.
  • the movement of the nozzle needle 16, in particular for releasing the injection openings 12, takes place in a manner known per se by means of an actuator, not shown, which can be actuated via a voltage supply line 18 by a control device of the internal combustion engine.
  • the actuator may in particular be a magnetic actuator or else a piezoactuator.
  • the supply bore 19 is also connected via a fuel connection, not shown, with a fuel line 22, which in turn is coupled to a fuel reservoir 25 (rail).
  • axially relatively widely spaced portion of the injector 11 is in the outer wall 23 by way of example a blind hole-shaped recess 24 is formed, so that the wall thickness of the injector 11 is reduced in the region of the recess 24.
  • the injector housing 11 may also have a flattening, in the region of which the wall thickness of the injector housing 11 is reduced.
  • the newly formed base 26 of the recess 24 forms part of a deformation region 27.
  • the fuel pressure currently prevailing in the supply bore 19 also acts in the injector housing 11 on the side facing away from the recess 24.
  • the wall section 29 of the injector housing 11 acts on the recess 24 facing side as a deformation region 27 in the manner of an elastically deformable membrane, wherein the deformation, which forms as a curvature, the higher, the higher the instantaneous fuel pressure in the supply bore 19 is.
  • the fuel injector 10 For detecting the time profile of the fuel pressure in the supply bore 19 and thus also in the high-pressure chamber 15, which is used as an indication of the instantaneous position of the nozzle needle 16 for driving the nozzle needle 16, the fuel injector 10 has a measuring device 30.
  • the measuring device 30 comprises according to the Fig. 2 a sensor element 32 designed as a piezo element 31.
  • the sensor element 32 has, by way of example, two electrode layers 33, 34 arranged parallel to one another, which by means of only in FIG Fig. 1 recognizable connecting wires 35, 36 are connected for example to an evaluation device, not shown, such that upon deformation of the deformation region 27 of the piezoelectric element 31 electrical voltages are generated, which are supplied via the connecting wires 35, 36 of the evaluation circuit as an input.
  • an evaluation device not shown
  • thermoforming sensor housing 40 comprises according to presentation of the Fig. 2 a substantially sleeve-shaped and rotationally symmetrical formed first housing element 41, in which the sensor element 32 is arranged with only a small radial gap.
  • first housing element 41 assigned to the injector housing 11
  • the latter has a radially encircling connection region 42 in the form of a fastening flange, which extends radially outside the sleeve-shaped region of the first housing element 41.
  • a second, disk-shaped or cover-shaped housing element 43 is arranged radially inside the first housing element 41.
  • the outer diameter or the cross section of the second housing element 43 is adapted to the inner diameter or the inner cross section of the first housing member 41, that the second housing member 43 is disposed axially displaceable or adjustable within the first housing member 41 in the direction of the double arrow 44, preferably with only (minor) leadership game.
  • a radially encircling weld seam 46 is provided, which extends at the level of the second housing element 43 ,
  • a device 50 which comprises a block-shaped support body 51.
  • a blind hole-shaped recess 52 is formed, the base surface or cross section of the base surface or the cross section of the sensor element 32 is adapted such that the one insulation layer 37 over the entire surface 53 of the recess 52 rests.
  • the recess 52 is bounded radially by a contact surface 54, on which the connecting region 42 of the first housing element 41 rests.
  • the depth t of the recess 52 in the device 50 is dimensioned such that the depth t corresponds to the difference dimension for setting the axial preload force F on the sensor element 32.
  • the second housing element 43 is thus within a first housing element 41 arranged and positioned and secured with the first housing member 41 (by means of the weld 45) that the second insulating layer 38 facing end face of the second housing member 43 rests against the second insulating layer 38 of the piezoelectric element 31.
  • the sensor housing 40 manufactured so far can be fastened with sensor element 32 arranged therein on the surface of the deformation area 27, preferably by means of a weld (not shown) in the connection area 42 of the first housing member 41, wherein the connecting portion 42 is in abutting contact with the connecting portion 27.
  • the sensor housing 40 is axially elastically deformed by the elasticity of the two housing elements 41, 43 so that the desired axial biasing force F is generated on the piezoelectric element 31, wherein the piezoelectric element 31 and the sensor element 32 with the insulating layer 37 directly to the base 26 of Recess 24 is present.
  • the first housing element 41a has an external thread 56 on its outer circumference, which cooperates with an internal thread 57 formed on the cover-shaped or hat-shaped second housing element 43a.
  • the external thread 56 and the internal thread 57 are preferably as Fine thread formed to allow a sensitive adjustment of the biasing force F. It is also essential that the position between the two housing elements 41a, 43a is not adjusted by itself after setting the biasing force F or the position is fixed. This can possibly be ensured by means of additional measures (adhesive, caulking etc.).
  • the sensor housing 40b has a first housing element 41b which on its inner circumference at least in some areas has an internal thread 58 which is connected to a second housing element 43b on a housing Outer circumference formed external thread 59 cooperates.
  • an axial adjustment of the two housing elements 41b, 43b relative to one another can be achieved by a corresponding rotation of the second housing element 43b relative to the first housing element 41b, in order to allow abutment of the second housing element 43b on the insulation layer 38 of the piezoelement 31.
  • the first housing element 41, 41a, 41b has no flange-like circumferential connection region 42, but is in the form of a constant diameter sleeve having.
  • a first housing element 41c which is formed for example in analogy to the first housing member 41a with an external thread 56c over the connection region 42c is brought into abutting contact with the outer wall 23 of the injector housing 11 in the region of the deformation region 27. Then, the first housing element 41c in the connection region 42c is connected to the injector housing 11 via a weld 61. Subsequently, according to the illustration of the Fig. 6 arranging the piezo element 31 or the sensor element 32 within the first housing element 41c.
  • the required axial preload force F is generated on the piezo element 31.
  • the piezoelectric element 31 is connected via the connecting wires 35, 36 with a measuring device 63 which is adapted to detect the electrical voltages of the piezoelectric element 31 generated due to the axial biasing force F.
  • the corresponding voltage signals of the piezoelectric element 31 thus serve as a measure of the relative positioning of the two housing elements 41c, 43c to each other until the desired axial preload force F is achieved.

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

Claims (10)

  1. Injecteur de carburant (10), en particulier injecteur à rampe commune, comprenant un boîtier d'injecteur (11) dans lequel est réalisé un espace haute pression (15) qui peut être alimenté avec du carburant sous pression par le biais d'un alésage d'alimentation (19) disposé dans le boîtier d'injecteur (11), au moins une ouverture d'injection (12) réalisée dans le boîtier d'injecteur (11), connectée de manière au moins indirecte à l'espace haute pression (15), pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne, un organe d'injection (16) ouvrant ou fermant l'au moins une ouverture d'injection (12) et un dispositif de mesure (30) pour une détection au moins indirecte de la pression dans l'espace haute pression (15) ou dans l'alésage d'alimentation (19), le dispositif de mesure (30) étant réalisé de manière à détecter une déformation élastique d'une région de déformation (27) disposée en liaison fonctionnelle au moins indirectement avec l'alésage d'alimentation (19) ou avec l'espace haute pression (15), le dispositif de mesure (30) présentant un élément de capteur (32) comprenant notamment un élément piézoélectrique (31), qui est disposé en liaison fonctionnelle avec la surface de la région de déformation (27), et l'élément de capteur (32) étant sollicité avec une force de précontrainte (F) au moyen d'un dispositif recouvrant au moins en partie l'élément de capteur (32) dans la direction de la région de déformation (27), l'élément de capteur (32) s'appliquant avec son côté tourné vers la région de déformation (27) directement sur la région de déformation (27), et que le dispositif pour générer la force de précontrainte (F) comprend deux éléments de boîtier déplaçables l'un par rapport à l'autre (41 ; 41a ; 41b ; 41c, 43 ; 43a ; 43b ; 43c) qui sont fixés dans une position assemblée l'un à l'autre au moins dans la direction de la force de précontrainte (F),
    caractérisé en ce que
    l'un des éléments de boîtier (41 ; 41a ; 41b ; 41c) est réalisé en forme de manchon et en ce que l'élément de capteur (32) est disposé à l'intérieur de l'élément de boîtier en forme de manchon (41 ; 41a ; 41b ; 41c) avec un jeu de guidage radial,
    un deuxième élément de boîtier (43 ; 43b) étant disposé radialement à l'intérieur de l'élément de boîtier en forme de manchon (41 ; 41b),
    ou
    un deuxième élément de boîtier (43a ; 43c) étant réalisé en forme de capot et comprenant l'élément de boîtier en forme de manchon (41a ; 41c) au niveau d'une surface extérieure.
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que les deux éléments de boîtier (41 ; 41a ; 41b ; 41c, 43 ; 43a ; 43b ; 43c) sont réalisés de manière déplaçable l'un par rapport à l'autre dans la direction axiale dans une région de chevauchement (45).
  3. Injecteur de carburant selon la revendication 2,
    caractérisé en ce que
    les deux éléments de boîtier (41, 43) sont disposés l'un par rapport à l'autre dans la région de chevauchement (45) avec un jeu de guidage radial et sont soudés l'un à l'autre.
  4. Injecteur de carburant selon la revendication 2,
    caractérisé en ce que
    les deux éléments de boîtier (41a ; 41b ; 41c, 43a ; 43b ; 43c) sont connectés l'un à l'autre dans la région de chevauchement au moyen d'une connexion filetée (56 ; 56c, 57, 58, 59).
  5. Injecteur de carburant selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce
    qu'un premier élément de boîtier (41 ; 41a ; 41b ; 41c) présente, sur le côté tourné vers le boîtier d'injecteur (11), une région de connexion de type bride (42 ; 42c) destinée à s'appliquer contre le boîtier d'injecteur (11).
  6. Injecteur de carburant selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    les éléments de boîtier (41 ; 41a ; 41b ; 41c, 43 ; 43a ; 43b ; 43c) sont constitués de métal et en ce qu'un élément de boîtier (41 ; 41a ; 41b ; 41c) est connecté au boîtier d'injecteur (11) au moyen d'une connexion par soudage (61).
  7. Dispositif (50) pour le montage du dispositif de mesure (30) pour un injecteur de carburant (10) selon l'une quelconque des revendications 1 à 9, présentant un corps de support (51) avec un évidement de type trou borgne (52), l'évidement (52) étant réalisé de manière à recevoir en partie l'élément de capteur (32) de telle sorte que l'élément de capteur (32) s'applique au moins indirectement sur le fond (53) de l'évidement (52), l'évidement (52) étant limité par une surface d'appui (54) pour un élément de boîtier (41 ; 41a ; 41b), et l'évidement (52) présentant une profondeur (t) qui correspond à une mesure différentielle pour l'ajustement de la force de précontrainte axiale (F) sur l'élément de capteur (32) .
  8. Procédé de montage d'un dispositif de mesure (30) au moyen d'un dispositif (50) selon la revendication 7, comprenant au moins les étapes suivantes :
    - agencement de l'élément de capteur (32) dans la région de l'évidement (52) du corps de support (51),
    - agencement d'un premier élément de boîtier (41 ; 41a ; 41b) radialement autour de l'élément de capteur (32), le premier élément de boîtier (41 ; 41a ; 41b) reposant sur la surface d'appui (54) du corps de support (51),
    - assemblage axial d'un deuxième élément de boîtier (43 ; 43a ; 43b) par rapport au premier élément de boîtier (41 ; 41a ; 41b), jusqu'à ce que le deuxième élément de boîtier (43 ; 43a ; 43b) soit au moins indirectement en contact d'appui avec l'élément de capteur (32),
    - éventuellement fixation du deuxième élément de boîtier (43 ; 43a ; 43b) par rapport au premier élément de boîtier (41 ; 41a ; 41b).
  9. Procédé de montage d'un élément de capteur (32) pour un injecteur de carburant (10) selon l'une quelconque des revendications 1 à 6, comprenant au moins les étapes suivantes :
    - fixation d'un premier élément de boîtier (41c) au boîtier d'injecteur (11),
    - agencement de l'élément de capteur (32) à l'intérieur du premier élément de boîtier (41c) de telle sorte que l'élément de capteur (32) s'applique contre une surface (26) du boîtier d'injecteur (11),
    - montage d'un deuxième élément de boîtier (43c) sur le premier élément de boîtier (41c), de telle sorte que le deuxième élément de boîtier (43c) soit disposé au moins indirectement en contact d'appui avec l'élément de capteur (32),
    - génération d'une force de précontrainte axiale (F) sur le deuxième élément de boîtier (43c),
    - éventuellement fixation du deuxième élément de boîtier (43c) par rapport au premier élément de boîtier (41c).
  10. Procédé selon la revendication 9,
    caractérisé en ce
    qu'un signal de tension généré par l'élément de capteur (32) pendant l'application de la force de précontrainte axiale (F) est surveillé.
EP16165757.2A 2015-04-30 2016-04-18 Injecteur de carburant et dispositif et procede de montage d'un dispositif de mesure Active EP3088729B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015208117 2015-04-30
DE102015208488.4A DE102015208488A1 (de) 2015-04-30 2015-05-07 Kraftstoffinjektor sowie Vorrichtung und Verfahren zur Montage einer Messeinrichtung

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Publication Number Publication Date
EP3088729A1 EP3088729A1 (fr) 2016-11-02
EP3088729B1 true EP3088729B1 (fr) 2018-07-04

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015220394A1 (de) * 2015-10-20 2017-04-20 Robert Bosch Gmbh Kraftstoffinjektor
DE102015224709A1 (de) * 2015-12-09 2017-06-14 Robert Bosch Gmbh Kraftstoffinjektor
GB2555453B (en) * 2016-10-28 2019-12-25 Delphi Tech Ip Ltd Integrated arrangement of a common rail and a pressure sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813756A1 (de) * 1998-03-27 1999-10-07 Siemens Ag Messung des Drucks eines Fluids

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014204629A1 (de) * 2014-03-13 2015-09-17 Robert Bosch Gmbh Kraftstoffinjektor, insbesondere Common-Rail-Injektor
DE102014204746A1 (de) * 2014-03-14 2015-09-17 Robert Bosch Gmbh Kraftstoffinjektor, insbesondere Common-Rail-Injektor
DE102014209330A1 (de) 2014-05-16 2015-11-19 Robert Bosch Gmbh Vorrichtung zur Erfassung des Kraftstoffdrucks für einen Kraftstoffinjektor, Kraftstoffinjektor sowie Kraftstoffzuführleitung zu einem Kraftstoffinjektor
DE102014222811A1 (de) * 2014-11-07 2016-05-12 Robert Bosch Gmbh Kraftstoffinjektor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813756A1 (de) * 1998-03-27 1999-10-07 Siemens Ag Messung des Drucks eines Fluids

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