EP1846656B1 - Separation electrique dans des injecteurs de carburant - Google Patents

Separation electrique dans des injecteurs de carburant Download PDF

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Publication number
EP1846656B1
EP1846656B1 EP05823893.2A EP05823893A EP1846656B1 EP 1846656 B1 EP1846656 B1 EP 1846656B1 EP 05823893 A EP05823893 A EP 05823893A EP 1846656 B1 EP1846656 B1 EP 1846656B1
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EP
European Patent Office
Prior art keywords
functional unit
valve
electrical
injector body
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05823893.2A
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German (de)
English (en)
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EP1846656A1 (fr
Inventor
Christoph Butscher
Juergen Frasch
Stephan Wehr
Michael Fleig
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
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Robert Bosch GmbH
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Publication of EP1846656A1 publication Critical patent/EP1846656A1/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
    • 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
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • 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

Definitions

  • fuel injectors which contain one or more electrically controllable valves.
  • an electrically controllable solenoid or piezoelectric valve can be provided for controlling a needle valve and thus for controlling the course of the injection.
  • Other valves can be used for example for a pressure boosting.
  • the separate testing of the functionality of the individual valves and the components connected to or controlled by these valves often presents a challenge.
  • the testing of the various functionalities of the fuel injectors sometimes poses considerable problems.
  • the fuel injector when a malfunction occurs in the assembled state during testing, usually has to be laboriously disassembled again. After the repair or replacement of individual components (eg an electrically controllable valve) and reassembly, the functionality must then be tested again. This method is in many cases too time-consuming and thus unprofitable.
  • DE 10 2004 008 349 A1 refers to a fuel injection system comprising two common rail bodies for injecting fuel at two independently controlled pressures.
  • the fuel injection system comprises at least one fuel injector having an injector body divided into a fuel pressure part having a fuel pressure assembly and an injection part having a directly controlled nozzle assembly.
  • the fuel pressure assembly is coupled to a first electrical actuator, the directly controlled nozzle assembly to a second electrical actuator.
  • the second electrical actuator has a pair of electrical terminals with a mating electrical extension formed within the injector body. This opens into connections for insulated conductors outside of the fuel pressure part.
  • a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine and a method for producing such a fuel injector are proposed, which avoid the described disadvantages of the prior art.
  • a basic idea of the present invention is that an injector body of the fuel injector has at least two separate functional units which are independently operable (independently of each other, for example, at least with respect to at least one functionality) and can be tested independently of one another.
  • a first functional unit has a control module for controlling a pressure transmission of a fuel pressure and a second functional unit has a nozzle module for actuating an injection process by means of an injection valve member.
  • the functional units are reversibly connected to one another via at least one frictional connection element (for example a union nut) and at least one positioning pin.
  • at least one frictional connection element for example a union nut
  • at least one positioning pin instead of one or more positioning pins according to the invention also equivalent means can be used, for example, projections in the housing of a functional unit, which engage in corresponding grooves in the other functional unit and so prevent rotation of the functional units relative to each other and facilitate the positioning of the functional units relative to each other.
  • the two functional units each have at least one electrically controllable valve (for example a solenoid valve).
  • the fuel injector has at least one electrical injector body contact accessible from an outer side of the injector body, the second electrically controllable valve having at least one valve contact, and wherein the at least one electrical valve contact and the at least one electrical injector body contact at least partially under at least one of its own weight force in Substantially dimensionally stable electrical solid conductors are connected.
  • This electrical connection between valve contacts and injector body contact also includes at least one electrical plug contact, in which the at least one electrical solid conductor is inserted.
  • the fuel injector according to the invention allows a much simplified compared to the prior art manufacturing process.
  • a first functional unit can firstly be produced and tested, for example with respect to the functionality of an electrically controllable valve.
  • a second functional unit is manufactured and tested, again for example with regard to the functionality of an electrically controllable valve.
  • the functional units are reversibly connected to each other by means of the non-positive connecting element, wherein an electrical connection between the at least one injector body contact the at least one valve contact is made, for example by inserting into an electrical plug contact.
  • the separate testing of the individual functional units considerably increases the process stability during the production of the fuel injectors and makes it possible to detect faults (for example electrical faults of the individual valves) at an early stage and to correct them if necessary.
  • the functional units can thus also be produced separately and independently of each other. Even a simple disassembly and repair for maintenance is possible. This reduces overall manufacturing and maintenance costs and increases the reliability of the fuel injectors.
  • FIG. 1 an overall view of a preferred embodiment of an injector body 110 for a common rail injection system is shown.
  • the injector body 110 can be dismantled at the butt joints 124, 126, 128 and 130 into substantially five functional modules 132, 134, 136, 138, 140: a control module 132, a sealing plate 134, a line connection module 136, a pressure booster module 138 and a nozzle module 140.
  • the pressure booster module 138 essentially serves to translate a fuel pressure, which is provided by an external pressure source, for example via a high-pressure common space, to the fuel injector (for example 1000 bar) into a second pressure (for example 2200 bar). so that two working pressures are available for the injection process.
  • the nozzle module 140 has an injection valve member 146 (in FIG FIG. 1 symbolically indicated only), for example a nozzle needle, which controls the actual injection process into the combustion chamber of an internal combustion engine (for example via injection openings).
  • the modules 132, 134, 136 and 140 are grouped in this embodiment into two functional units 148, 150: one comprising the control module 132 and the sealing plate 134 Control unit 148 and a nozzle unit 150 comprising the line connection module 136, the pressure booster module 138 and the nozzle module 140.
  • These two functional units 148 and 150 are separated from each other by the second butt joint 126 and are reversibly connected by a cap nut 152.
  • the functional units 148, 150 are still connected via the positioning pins 154 (in the sectional view according to FIG. FIG. 1 only one of the positioning pins 154 can be seen), which are respectively received in corresponding positioning bores 156 in the control module 132, in the sealing plate 134 and in the line connection module 136.
  • the injector body 110 has two solenoid valves 111, 112: a first solenoid valve 111 arranged in the control module 132 for controlling the pressure transmission in the pressure booster module 138, and a second solenoid valve 112 arranged in the nozzle module 140 for controlling the actual injection process via the injection valve member 146.
  • the separability of the two functional units 148, 150 along the second butt joint 126 causes the ("dry") control module 132 and the ("wet") portion of the injector body 110 located below the first butt 124 to be designed, manufactured and tested separately, to be assembled afterwards.
  • the separability for maintenance purposes for example, easily replace individual components of the injector body 110, which accommodates the "system repair idea” (SIS).
  • SIS system repair idea
  • the solenoid valve 112 in the nozzle module 140 is electrically actuated via two electrical valve contacts 114.
  • the injector body 110 has at its upper end an electrical injector body contact 116 accessible from above.
  • the realization of a disassembly of the injector body 110 or a simple modular assembly consists in the illustrated modular design of the injector body 110 in such a way to electrically connect the valve contacts 114 to the injector body contact 116 that further ensures easy assembly and disassembly of the injector body.
  • two conductor channels 120 are provided in this embodiment, which extend through the modules 138, 136 and 134.
  • the conductor channels 120 are formed by bores in the pressure booster module 138, in the line connection module 136 and in the sealing plate 134. When the injector body 110 is assembled, these bores are in each case flush with the butt joints 128 and 126, so that a single, continuous conductor channel 120 results.
  • the individual holes of the conductor channel 120 have in this embodiment in the individual modules 138, 136, 134 each have a straight course. A curved course of the holes can be realized with the inventive solution.
  • the bores in the individual modules 138, 136, 134 each have a different inclination to an injector axis 142.
  • the conductor channel 120 in the pressure booster module 138 has an inclination of 1 ° to the injector axis 142
  • the inclination in this embodiment in the line connection module 136 is 2.2 °.
  • the connection between the two electrical valve contacts 114 of the solenoid valve 112 and the injector body 116 in this embodiment partially via two solid conductors 118.
  • the solid conductors 118 extend through the two conductor channels 120 and connect the valve contacts 114 with electrical plug contacts 122, which in turn via an electrical Connection 144 (for example, two each at one end with an electrical plug contact 122 and at another end with the injector body contact 116 soldered cables) are connected to the injector body contact 116.
  • the solid conductors 118 are fixed or detachably connected electrically to the valve contacts 114 of the solenoid valve 112.
  • connection of the solid conductors 118 with the plug contacts 122 is reversible, so that this connection can be made during assembly of the injector body 110, so when mating control unit 148 and nozzle unit 150 by simply pressing in the solid conductor 118 into the plug contacts 122.
  • the solid conductors 118 can be easily removed again from the plug contacts 122, and thus the injector body 110 can be broken down again into the two functional units 148, 150 without unsoldering of electrical connections.
  • the solid conductors 118 are stiff enough that they on the one hand do not change their shape substantially under their own weight and thus thread easily through the conductor channels 120 with their different inclinations to Injektorachse 142 and plug into the plug contacts 122.
  • the solid conductors should have a certain plasticity, so that no mechanical stresses occur at the transition between sections of the conductor channels 120 with different angles of inclination.
  • the term "solid conductor” does not necessarily restrict the selection of materials to solid materials, but it is also possible, for example, to use waveguides (tubes) as solid conductors 118, provided they have sufficient mechanical rigidity.
  • the solid conductors 118 CuSn6 with a Brinell hardness between 80 and 90 HB as a material, which is otherwise used for example as welding filler.
  • a material which is otherwise used for example as welding filler.
  • These materials meet the above requirements for hardness and plasticity and are also easily connected by welding with the valve contacts 114.
  • the hardness of the materials should be between 50 and 100 HB, preferably between 60 and 95 HB and particularly advantageously between 75 and 90 HB.
  • FIGS. 2A to 2C the composition of the fuel injector from the two individual functional units 148 and 150 is shown in perspective.
  • FIG. 2A It can be seen how the control unit 148 and the nozzle unit 150 along the butt joint 126 can be separated from each other by the union nut 152 is released.
  • the nozzle unit 150 has a fuel supply nozzle 210, via which the nozzle unit 150 can be supplied with fuel.
  • This fuel supply nozzle 210 may for example be connected to a high-pressure accumulator (common rail).
  • the sealing plate 134 see FIG.
  • the butt joint 126 separates the "wet” nozzle unit 150 from the "dry” control unit 148. This also helps to make both functional units 148, 150 separately manufacturable and separately testable.
  • FIG. 2B a control unit is shown in perspective view. It can be seen here that the injector body contact 116, which is arranged on the upper side of the control unit 148, has four individual connection bolts 212 in this exemplary embodiment. In each case one of the two solenoid valves 111, 112 can be actuated via in each case two of these connection bolts 212.
  • positioning pins 154 are embedded in the control unit 148. These positioning pins 154 may, for example, be permanently or detachably embedded in corresponding positioning bores 156 of the control unit 148 (see FIG FIG. 1 ). As already described above, according to the invention, instead of positioning pins 154, other devices can also be used which simplify positioning of the functional units 148, 150 relative to one another and prevent the functional units 148, 150 from rotating relative to one another. In particular, projections and corresponding grooves are to be mentioned here.
  • FIG. 2C is shown in perspective partial view, the upper end of the nozzle unit 150. It can be seen that the upper ends of the solid conductors 118 protrude from the line connection module 136. The solid conductors 118 are encased for insulation against the injector body 110 with shrink tubing 214, but the upper ends are stripped to make contact. As related to FIG. 1 can be seen when mating the functional units 148, 150, the upper ends of the solid conductors 118 pushed through conductor channels 120 in the sealing plate 134 and inserted into the plug contacts 122.
  • O-rings 216 are plugged, which are intended to additionally prevent the penetration of fuel from the nozzle unit 150 along the solid conductors 118 into the control unit 148.
  • FIG. 2C also to recognize the mouths of the positioning holes 156, in which the positioning pins 154 of the control unit 148 when assembling the two functional units 148, 150 are inserted to ensure an exact positioning of the control unit 148 relative to the nozzle unit 150 and so a "blind" plugging the solid conductors 118 in the plug contacts 122 to allow.
  • FIGS. 3A to 3C an assembly of the functional units 148, 150 is shown in perspective.
  • the positioning pins 154 which, as in FIG. 2B can be seen, in this embodiment, fixedly connected to the control unit 148, inserted into the positioning holes 156 of the nozzle unit 150.
  • the control unit 148 is positioned relative to the nozzle unit 150, so that both functional units 148, 150 can no longer rotate relative to one another.
  • the plug contacts 122 relative to the upper ends of the solid conductors 118 already have the correct position.
  • both functional units 148, 150 are connected to one another in a force-locking manner by screwing down the union nut 152.
  • this connection can be easily released again by the union nut 152, so that, for example, both functional units 148, 150 can be checked and maintained separately from each other.
  • FIG. 4 is a schematic flow diagram of a method according to the invention for producing a fuel injector shown schematically.
  • the illustrated process steps do not necessarily have to be performed in the order shown, and there may also be other, in FIG. 4 not shown process steps are performed.
  • a first functional unit 148 of a fuel injector is produced, which has at least one injector body contact 116 and at least one first electrically controllable valve 111.
  • a second functional unit 150 is produced in method step 414, which has at least one second electrically controllable valve 112 with at least one electrical valve contact 114.
  • a second functionality of this second functional unit 150 in particular an electrical function of the second electrically controllable valve 112, is checked.
  • both functional units 148, 150 are then positioned relative to one another by at least one positioning pin 154.
  • the first functional unit 148 and the second functional unit 150 are reversibly connected to each other at a butt joint 126 by means of at least one non-positive connecting element 152, wherein an electrical connection between the at least one injector body contact 116 and the at least one valve contact 114 is established.

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  • 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)

Claims (6)

  1. Injecteur de carburant destiné à injecter un carburant dans une chambre de combustion d'un moteur à combustion interne,
    - dans lequel l'injecteur de carburant comporte un corps d'injecteur (110),
    - dans lequel le corps d'injecteur (110) comporte une unité fonctionnelle (148), comprenant un module de commande (132) doté d'au moins une soupape (111) pouvant être commandée électriquement afin de commander un amplificateur de pression dans un module d'amplification de pression (138),
    - dans lequel l'injecteur (110) comporte au moins une seconde unité fonctionnelle (150) différente de la première unité fonctionnelle (148) et comporte au moins une seconde soupape (112) pouvant être commandée électriquement, comprenant le module d'amplification de pression (138) et un module à buse (140),
    - dans lequel la première unité fonctionnelle (148) et la seconde unité fonctionnelle (148) sont reliées de manière réversible par au moins un élément de liaison (152) à complémentarité de force et par au moins un plot de positionnement (154) sur un joint (126), caractérisé en ce que la première unité fonctionnelle (148) comporte au moins un contact de corps d'injecteur électrique (116) accessible depuis une face externe du corps d'injecteur (110), dans lequel la seconde soupape (112) pouvant être commandée électriquement comporte au moins un contact de soupape (114), et dans lequel l'au moins un contact électrique de soupape (114) et l'au moins un contact de corps d'injecteur électrique (116) est accessible au moins partiellement par le haut, par l'intermédiaire d'au moins un conducteur électrique massif (118) de forme sensiblement stable sous sa propre force pondérale, dans lequel le contact de corps d'injecteur (116) est accessible par le haut.
  2. Injecteur de carburant selon la revendication précédente, caractérisé en ce que l'élément de liaison (152) à complémentarité de force comporte au moins un écrou de raccordement (152).
  3. Injecteur de carburant selon l'une quelconque des revendications précédentes, caractérisé par au moins un contact électrique enfichable (122) destiné à enficher l'au moins un conducteur électrique massif (118) afin d'établir une liaison électrique entre le contact de corps d'injecteur (116) et l'au moins un contact de soupape (114).
  4. Injecteur de carburant selon l'une quelconque des revendications précédentes, caractérisé en ce que la première soupape pouvant être commandée électriquement (111) et/ou la seconde soupape pouvant être commandée électriquement (112) comporte au moins une soupape magnétique (112, 111).
  5. Procédé de fabrication d'un injecteur de carburant selon l'une quelconque des revendications précédentes, comprenant les étapes suivantes :
    a) une première unité fonctionnelle (148) de l'injecteur de carburant est fabriquée, dans lequel la première unité fonctionnelle (148) comporte au moins un contact de corps d'injecteur (116) et au moins un module de commande (132) présentant au moins une première soupape pouvant être commandée électriquement (111) afin de commander une amplification de pression,
    b) une première fonctionnalité de la première unité fonctionnelle (148), notamment une fonction électrique de la première soupape pouvant être commandée électriquement (111), est vérifiée ;
    c) une seconde unité fonctionnelle (150) est réalisée, dans lequel la seconde unité fonctionnelle (150) comporte au moins un module d'amplification de pression (138) et un module à buse (140) comportant une seconde soupape pouvant être commandée électriquement (112) et au moins un contact électrique de soupape (114) ;
    d) une seconde fonctionnalité de la seconde unité fonctionnelle (150), notamment une fonction électrique de la seconde soupape pouvant être commandée électriquement (112), est vérifiée ;
    e) la première unité fonctionnelle (148) et la seconde unité fonctionnelle (150) sont reliées l'une à l'autre de manière réversible au niveau d'un joint (126) au moyen d'au moins un élément de liaison à complémentarité de force (152), dans lequel une première liaison électrique entre l'au moins un contact de corps d'injecteur (116) et l'au moins un contact de soupape (114) est établie,
    caractérisé en ce que, lors de l'étape de procédé e), au moins un conducteur électrique massif de forme sensiblement stable (118) est enfiché sous son propre poids dans au moins un contact électrique d'enfichage (122), et le contact de corps d'injecteur (116) est accessible par le haut.
  6. Procédé selon la revendication précédente, caractérisé par l'étape supplémentaire suivante :
    f) la première unité fonctionnelle (148) et la seconde unité fonctionnelle (150) sont positionnées l'une par rapport à l'autre par au moins un plot de positionnement (154).
EP05823893.2A 2005-01-31 2005-12-16 Separation electrique dans des injecteurs de carburant Active EP1846656B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005004327A DE102005004327A1 (de) 2005-01-31 2005-01-31 Elektrische Trennung in Kraftstoffinjektoren
PCT/EP2005/056850 WO2006081896A1 (fr) 2005-01-31 2005-12-16 Separation electrique dans des injecteurs de carburant

Publications (2)

Publication Number Publication Date
EP1846656A1 EP1846656A1 (fr) 2007-10-24
EP1846656B1 true EP1846656B1 (fr) 2017-04-12

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US (1) US7571715B2 (fr)
EP (1) EP1846656B1 (fr)
DE (1) DE102005004327A1 (fr)
WO (1) WO2006081896A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8316825B1 (en) * 2008-08-04 2012-11-27 French Iii Jack M Adjustable racing injector
AT510462B1 (de) 2010-09-22 2014-04-15 Bosch Gmbh Robert Verfahren zum überprüfen und instandsetzen eines kraftstoffinjektors
DE102018007614B4 (de) 2018-09-25 2023-04-27 Otto-Von-Guericke-Universität Magdeburg Injektor und Verfahren zur Einspritzung von Kraftstoff und einer Zusatzflüssigkeit sowie Verwendung des Injektors
US11939940B2 (en) 2021-10-04 2024-03-26 Billet Machine And Fabrication, Inc. Fuel injector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030224664A1 (en) * 2002-05-31 2003-12-04 Brock Gregory D. Electrical adapter encompassing multiple press-fit electrical receptacles
DE102004008349A1 (de) * 2003-02-28 2004-09-09 Caterpillar Inc., Peoria Brennstoffeinspritzsystem, welches zwei Common-Rails zur Einspritzung von Brennstoff mit zwei unabhängig gesteuerten Drücken aufweist

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412971A (en) * 1966-03-03 1968-11-26 Armstrong Cork Co Electrically-controlled valve apparatus and control circuit suitable for use therein
US4295453A (en) * 1979-02-09 1981-10-20 Lucas Industries Limited Fuel system for an internal combustion engine
DE3584151D1 (de) * 1984-12-27 1991-10-24 Nippon Denso Co Elektromagnetisches stroemungsregelungsventil.
JP2758064B2 (ja) * 1989-12-08 1998-05-25 トヨタ自動車株式会社 燃料噴射弁
US6036120A (en) * 1998-03-27 2000-03-14 General Motors Corporation Fuel injector and method
US6113014A (en) * 1998-07-13 2000-09-05 Caterpillar Inc. Dual solenoids on a single circuit and fuel injector using same
GB2341893A (en) 1998-09-23 2000-03-29 Lucas Industries Ltd Two-stage electromagnetically actuated fuel injector for i.c. engines
US6206304B1 (en) * 1999-01-13 2001-03-27 Toyota Jidosha Kabushiki Kaisha Injector
US6520421B2 (en) * 2000-12-29 2003-02-18 Siemens Automotive Corporation Modular fuel injector having an integral filter and o-ring retainer
DE10149514A1 (de) * 2001-10-08 2003-04-24 Bosch Gmbh Robert Kraftstoffinjektor mit Kompensationselement für Kraftstoffeinspritzsysteme
DE10152172A1 (de) * 2001-10-23 2003-04-30 Bosch Gmbh Robert Magnetventil
DE10154576C1 (de) 2001-11-07 2003-04-17 Bosch Gmbh Robert Kraftstoffinjektor mit düsennaher Magnetventilanordnung
DE10159003A1 (de) * 2001-11-30 2003-06-18 Bosch Gmbh Robert Injektor mit einem Magnetventil zur Steuerung eines Einspritzventils
US6732959B2 (en) * 2002-09-04 2004-05-11 Delphi Technologies, Inc. Dual-coil outwardly-opening fuel injector
DE102004008478B4 (de) 2004-02-20 2007-05-10 Siemens Ag Fördermengenregelung einer Hochdruckpumpe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030224664A1 (en) * 2002-05-31 2003-12-04 Brock Gregory D. Electrical adapter encompassing multiple press-fit electrical receptacles
DE102004008349A1 (de) * 2003-02-28 2004-09-09 Caterpillar Inc., Peoria Brennstoffeinspritzsystem, welches zwei Common-Rails zur Einspritzung von Brennstoff mit zwei unabhängig gesteuerten Drücken aufweist

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US7571715B2 (en) 2009-08-11
WO2006081896A1 (fr) 2006-08-10
DE102005004327A1 (de) 2006-08-03
US20080121215A1 (en) 2008-05-29
EP1846656A1 (fr) 2007-10-24

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