EP2492489B1 - Befestigungsstruktur einer Kraftstoffeinspritzdüse einer Fahrzeugkraftstoffleiste - Google Patents

Befestigungsstruktur einer Kraftstoffeinspritzdüse einer Fahrzeugkraftstoffleiste Download PDF

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Publication number
EP2492489B1
EP2492489B1 EP12156854.7A EP12156854A EP2492489B1 EP 2492489 B1 EP2492489 B1 EP 2492489B1 EP 12156854 A EP12156854 A EP 12156854A EP 2492489 B1 EP2492489 B1 EP 2492489B1
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EP
European Patent Office
Prior art keywords
fixing
fuel injector
injector
fuel
holder
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
EP12156854.7A
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English (en)
French (fr)
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EP2492489A1 (de
Inventor
Myeong-Hun Kweon
Sung-Hyun Yoon
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.)
Hyundai Kefico Corp
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Kefico Corp
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Publication date
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Publication of EP2492489A1 publication Critical patent/EP2492489A1/de
Application granted granted Critical
Publication of EP2492489B1 publication Critical patent/EP2492489B1/de
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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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
    • 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
    • F02M2200/8023—Fuel injection apparatus manufacture, repair or assembly the assembly involving use of quick-acting mechanisms, e.g. clips
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa

Definitions

  • the present invention relates to a fuel rail of a vehicle, and more particularly, to a fuel injector fixing structure of a fuel rail of a vehicle, capable of fixing fuel injectors for injecting fuel into cylinders onto a main pipe of the fuel rail at predetermined intervals by using additional fixing members, so as to sufficiently absorbing a high pressure applied to the fuel injectors when the fuel injectors inject fuel and to appropriately replace the fuel injectors.
  • gasoline engines mainly include indirect multi point injection (MPI) engines and port fuel injection (PFI) engines.
  • MPI indirect multi point injection
  • PFI port fuel injection
  • GDI gasoline direct injection
  • a gasoline indirect MPI engine has a fuel injection pressure of only 4 to 5bar
  • a GDI engine requires a fuel injection pressure of about 120 to 200bar.
  • a GDI engine includes a fuel rail including a plurality of fuel injectors for receiving fuel supplied from a fuel tank and for injecting the fuel.
  • FIG. 1 A conventional fuel rail 10 having the above-described structure is illustrated in FIG. 1 .
  • a plurality of mounting lugs 30 and injector holders 40 are fixed onto a main pipe 20 at predetermined intervals, and fuel injectors 50 are detachably fixed into the injector holders 40, and the pressure applied to fuel injectors 50 is absorbed by damping members 60.
  • the mounting lugs 30 and the injector holders 40 are welded and fixed onto an outer surface of the main pipe 20, correspond to the number of cylinders included in an engine, and fix the fuel injectors 50 for injecting fuel into the cylinders.
  • the fuel injectors 50 are inserted and fixed into lower portions of the injector holders 40, and each includes an insertion part formed at an upper portion of the fuel injector 50 and inserted into the injector holder 40, and an injection part formed at a lower portion of the fuel injector 50 and for injecting fuel.
  • a connection unit connected to a power source is formed at a side of the fuel injector 50.
  • Each of the damping members 60 mainly includes a fixing part surrounding and fixing the fuel injector 50, and damping parts integrally formed at a side of the fixing part, having elasticity, and absorbing the pressures transferred from the fuel injector 50.
  • the damping member 60 for fixing the fuel injector 50 is fixed onto a body part of the fuel injector 50 before being elastically supported under the injector holder 40, and absorbs a high pressure applied to the fuel injector 50 when the fuel injectors 50 injects fuel.
  • a space for fixing the fuel injector 50 onto the main pipe 20 of the fuel rail 10 may be insufficient. As such, when a product is transferred, assembled, removed, or replaced, the fuel injector 50 may be departed from the injector holder 40.
  • EP-A-1 892 408 discloses a holder for fixing an injector to a fuel cup.
  • the holder comprises a bottom portion, a notch of the holder, an injector recess, and at least one elastic element.
  • the notch of the holder is arranged for engaging the notch of the holder to a notch of the fuel cup.
  • the injector recess in the bottom portion of the holder is formed in the bottom portion of the holder for taking in the injector.
  • the injector recess of the holder is formed and arranged in such a way that the holder may be fixed to the injector at the injector recess of the holder by a positive connection.
  • the elastic element is arranged at the bottom portion of the holder for forcing the injector away from the fuel cup.
  • the present invention provides a fuel injector fixing structure of a fuel rail of a vehicle, in which an additional fixing member for fixing a fuel injector is added so as to prevent departure of the fuel injector when the fuel rail is transferred, assembled, removed, and replaced, while the role and function of a damping member for absorbing a high pressure applied to the fuel injector when the fuel injector injects fuel is maintained, thereby easily replacing the fuel injector.
  • the present invention also provides a fuel injector fixing structure of a fuel rail of a vehicle, in which a fuel injector is elastically supported by a damping member and then a fixing member is fixed onto the fuel injector through a via hole formed in the damping member, thereby fixing the fuel injector.
  • the present invention also provides a fuel injector fixing structure of a fuel rail of a vehicle, in which, when a mounting lug and an injector holder fixed onto a main pipe are connected by a connection unit, a fixing member for fixing a fuel injector is variously modifiable by fixing a portion of the fixing member onto the fuel injector and fixing another portion of the fixing member onto the connection unit.
  • a fuel injector fixing structure of a fuel rail of a vehicle including a main pipe having two ends connected to a plug and an end cap; a plurality of injector holders fixed onto an outer surface of the main pipe at predetermined intervals; a mounting lug disposed adjacent to the injector holder; a fuel injector detachably fixed into the injector holder; a damping member detachably attached to the fuel injector and elastically supporting the fuel injector with respect to the injector holder; and a fixing member for detachably fixing the fuel injector fixing member.
  • the fixing member includes a holding part surrounding and attached to an outer surface of the fuel injector; and a fixing part extending upwardly from the holding part and detachably fixed onto the injector holder.
  • a fixing groove for fixing the holding part is formed on the outer surface of the fuel injector.
  • the holding part may include a departure prevention part engaged with the outer surface of the fuel injector and for preventing departure of the fixing member from the fuel injector.
  • the departure prevention part may be formed as an engaging bump protruding toward a center of the holding part at an end portion of the holding part.
  • a step portion may be formed on the injector holder, a fixing hole may be formed in the fixing part, and the fixing hole of the fixing part may be engaged with the step portion.
  • the damping member includes a fixing ring engaged with an outer surface of the fuel injector; and a supporting part extending from the fixing ring and having an end portion, which is bent and elastically contacted to the injector holder.
  • a via hole corresponding to the fixing groove is formed in the fixing ring.
  • the fixing member includes a holding part surrounding and attached to an outer surface of the fuel injector; and a fixing part extending upwardly from the holding part and detachably fixed onto a connection unit formed between the injector holder and the mounting lug.
  • a protrusion may be formed on the connection unit, and a fixing bump engaged with the protrusions may be formed on the fixing part.
  • the holding part may include upper and lower members having elasticity and vertically spaced apart from each other by a predetermined distance, a bent part may be formed in at least one of the upper and lower members, and, the holding part is inserted into the fixing groove of the fuel injector as the bent part is deformed.
  • a fuel injector is elastically supported by a damping member and is fixed by an additional fixing member, a high pressure applied to the fuel injector when the fuel injector injects fuel may be absorbed and departure of the fuel injector when a fuel rail is transferred, assembled, removed, or replaced may be prevented while the role and function of the damping member is maintained.
  • engaging bumps are formed on a holding part of a fixing member for surrounding and fixing a fuel injector, departure of the fixing member from the fuel injector may be prevented.
  • a fixing member for fixing a fuel injector may be variously modified by fixing a portion of the fixing member onto the fuel injector and fixing another portion of the fixing member onto the connection unit.
  • FIG. 2 is a perspective view showing a fuel injector fixing structure of a fuel rail 100 of a vehicle, according to an embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of a main portion of FIG. 2 .
  • FIG. 4 is a perspective view of a fixing member 700 in the fuel injector fixing structure illustrated in FIG. 2 .
  • the fuel rail 100 includes a main pipe 200, injector holders 300, mounting lugs 400, fuel injectors 500, damping members 600, and fixing members 700.
  • the main pipe 200 has a through hole (not shown) formed along a length direction of the main pipe 200, and includes one end fixed to a plug 210 to be connected to a fuel supply pipe and another end fixed to an end cap 220 for blocking one end of the through hole.
  • a plurality of injector holders 300 for detachably fixing the fuel injectors 500 to be described below are formed on an outer surface of the main pipe 200 at predetermined intervals so as to be connected to the through hole.
  • connection holes connected to the through hole are formed in the outer surface of the main pipe 200, the injector holder 300 is fixed around the connection hole, and thus fuel in the main pipe 200 is supplied to the fuel injector 500 through the injector holder 300.
  • the mounting lug 400 for fixing the fuel rail 100 to an engine or a component around the engine is fixed adjacent to the injector holder 300.
  • the injector holder 300 and the mounting lug 400 are fixed on the outer surface of the main pipe 200 by using a laser welding or arc welding method.
  • the laser welding or arc welding method for fixing the injector holder 300 and the mounting lug 400 is well known, and thus will not be described in detail here.
  • the injector holder 300 includes an open lower part into which the fuel injector 500 is detachably inserted and fixed, and has a side via hole connected to the connection hole of the main pipe 200 so as to allow fuel in the main pipe 200 to be supplied to the fuel injector 500 through the injector holder 300.
  • the fuel injector 500 internally includes various components such as a value and a valve operating means in order to receive fuel supplied from the main pipe 200 and to inject the fuel into a cylinder.
  • the internal structure of the fuel injector 500 is well known, and thus will not be described in detail here.
  • the fuel injector 500 mainly includes an insertion part 510 inserted and fixed into the lower part of the injector holder 300, a body part 520 integrally formed with the insertion part 510 and including various components for injecting fuel, and an injection part 530 formed under the body part 520 and exposed toward a combustion chamber of the cylinder in order to inject fuel.
  • the fuel injector 500 is supported under the injector holder 300 by the damping member 600 that holds the body part 520 and absorbs a high pressure generated when the fuel injector 500 injects fuel, and is completely fixed by the fixing member 700 that surrounds and fixes an outer circumference of the body part 520 and is engaged and fixed onto the injector holder 300.
  • the fuel injector 500 is formed in such a way that a high pressure generated when the fuel injector 500 injects fuel is absorbed by the damping member 600 and that departure of the fuel injector 500 from the injector holder 300 is prevented by the fixing member 700.
  • the damping member 600 includes a fixing ring 610 engaged with an outer surface of the fuel injector 500, and a supporting part 620 extending upwardly from the fixing ring 610 and including upper portions bent and elastically contacted to the injector holder 300.
  • the damping member 600 may be formed of an elastic material capable of absorbing an impact caused by a high pressure generated when the fuel injector 500 injects fuel, while the supporting parts 620 elastically contacted to the injector holder 300 and supported under the injector holder 300 are bent due to the impact and then are restored to their original state.
  • the fixing member 700 includes a holding part 710 surrounding and attached to the outer surface of the fuel injector 500, and a fixing part 720 extending upwardly from the holding part 710 and detachably fixed onto the injector holder 300.
  • the holding part 710 is formed in a "C" shape having a side opening, is engaged around an outer surface of the body part 520 of the fuel injector 500, and includes a departure prevention part 730 engaged with the outer surface of the fuel injector 500, i.e., the body part 520, so as to prevent departure of the holding part 710, at end portions of the holding part 710.
  • the departure prevention part 730 is formed as an engaging bump at the end portion of the holding part 710, and the engaging bumps are formed by partially cutting the end portion of the holding part 710 so as to protrude toward the center of the holding part 710.
  • the holding part 710 is formed in a ring shape having an opening, and includes cuts 711 formed at the end portions of the holding part 710, and the engaging bumps formed at end portions of the cuts 711 and protruding toward the center of the holding part 710.
  • the fixing part 720 extends upwardly from the holding part 710, has an almost " ⁇ "-shaped fixing hole, and is engaged with a step portion 310 formed on the injector holder 300.
  • the step portion 310 of the injector holder 300 may be formed between a flat part 311 formed by vertically cutting a portion of the injector holder 300, and a curved part 312 remaining at a lower portion of the injector holder 300 to a certain height.
  • the holding part 710 of the fixing member 700 is inserted and fixed into a fixing groove 540 formed on the body part 520 of the fuel injector 500.
  • the fixing groove 540 is connected to a via hole 611 formed in the fixing ring 610 of the damping member 600, when the fixing member 700 is fixed onto the body part 520.
  • the via hole 611 is formed in the fixing ring 610 of the damping member 600 such that the holding part 710 of the fixing member 700 is fixed onto the body part 520 by the fixing ring 610 while the fixing ring 610 of the damping member 600 is fixed onto the body part 520 of the fuel injector 500.
  • the fuel injector 500 is formed in such a way that the holding part 710 of the fixing member 700 is passed through the via hole 611 of the damping member 600 and is inserted and fixed into the fixing groove 540 of the body part 520 while the damping member 600 is fixed onto the body part 520 and supports the fuel injector 500 with respect to the injector holder 300.
  • the fixing ring 610 of the damping member 600 may be formed to surround and fix a lower portion of the fixing groove 540 of the fuel injector 500.
  • FIG. 5 shows a fuel injector fixing structure of the fuel rail 100 when the injector holder 300 and the mounting lug 400 are connected to each other by a connection unit 350, according to another embodiment of the present invention.
  • the injector holder 300 and the mounting lug 400 are connected by the connection unit 350, and protrusions 351 are formed at two sides of the connection unit 350.
  • connection unit 350 is formed between the injector holder 300 and the mounting lug 400, as illustrated in FIG. 6 , another fixing member 700' is used to fix the fuel injector 500 to the connection unit 350.
  • the fixing member 700' includes a holding part 710' surrounding and attached to the fuel injector 500, and a fixing part 720' extending upwardly from the holding part 710' and fixed to the connection unit 350 formed between the injector holder 300 and the mounting lug 400.
  • the holding part 710' of the fixing member 700' is the same as the holding part 710 of the fixing member 700 illustrated in FIG. 4 , and thus will not be described in detail here.
  • the fixing part 720' is formed in a "U" shape having a top opening, and includes fixing bumps 721' formed at an upper portion of the fixing part 720' so as to be engaged and fixed onto the protrusions 351 formed at a lower portion of the connection unit 350.
  • the fuel injector 500 may be completely fixed by engaging the fixing bumps 721' of the fixing part 720' of the fixing member 700' onto the protrusions 351 while the holding part 710' of the fixing member 700' is engaged onto the body part 520.
  • a holding part 710" of a fixing member 700" includes upper and lower members 711" and 712" having elasticity, facing each other, and vertically spaced apart from each other by a predetermined distance.
  • a bent part 713" is formed in one of the upper and lower members 711” and 712", and the holding part 710" is inserted into the fixing groove 540 of the fuel injector 500 as the bent part 713" is deformed.
  • the fixing part 720 of the fixing member 700 or the fixing part 720' of the fixing member 700' may be selected and used.
  • the end cap 220 and the plug 210 are individually fixed onto two ends of the main pipe 200 of the fuel rail 100 by using a brazing method.
  • the brazing method for fixing the end cap 220 and the plug 210 onto the main pipe 200 will not be described in detail here.
  • a plurality of injector holders 300 and a plurality of mounting lugs 400 are welded and fixed onto an outer surface of the main pipe 200.
  • the insertion part 510 of the fuel injector 500 is inserted into an open lower portion of the injector holder 300.
  • the fixing ring 610 of the damping member 600 is placed under the injection part 530 of the fuel injector 500 and then is raised to be fixed around the body part 520 of the fuel injector 500 such that the supporting parts 620 of the damping member 600 contact and are supported under the injector holder 300.
  • the fuel injector 500 may also be fixed into the injector holder 300 after the damping member 600 is fixed onto the fuel injector 500.
  • the fuel injector 500 is fixed by the fixing member 700 and thus is detachably and completely fixed into the injector holder 300.
  • the fuel injector 500 is completely fixed by inserting and fixing the holding part 710 of the fixing member 700 into the fixing groove 540 of the fuel injector 500, and then engaging the fixing part 720 of the fixing member 700 with the step portion 310 of the injector holder 300.

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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 (7)

  1. Eine Kraftstoffeinspritzvorrichtungsfixierungsstruktur eines Kraftstoffzuteilers eines Fahrzeugs, die folgende Merkmale aufweist:
    ein Hauptrohr (200), das zwei Enden aufweist, die mit einem Stopfen (210) und einer Endabdeckung (220) verbunden sind;
    eine Mehrzahl von Einspritzvorrichtungshalterungen (300), die in vorbestimmten Abständen auf einer Außenoberfläche des Hauptrohrs (200) fixiert ist;
    einen neben der Einspritzvorrichtungshalterung (300) angeordneten Anbringansatz (400);
    eine in der Einspritzvorrichtungshalterung (300) abnehmbar fixierte Kraftstoffeinspritzvorrichtung (500);
    ein Dämpfungsbauglied (600), das abnehmbar an der Kraftstoffeinspritzvorrichtung (500) befestigt ist und die Kraftstoffeinspritzvorrichtung (500) bezüglich der Einspritzvorrichtungshalterung (300) auf federnde Weise trägt und einen Fixierungsring (610), der mit einer Außenoberfläche der Kraftstoffeinspritzvorrichtung (500) in Eingriff steht, und ein Trageteil (620) aufweist, das sich von dem Fixierungsring (610) aus erstreckt und einen Endabschnitt aufweist, der gebogen und mit der Einspritzvorrichtungshalterung (300) federnd in Kontakt steht; und
    ein Fixierungsbauglied (700, 700', 700") zum abnehmbaren Fixieren der Kraftstoffeinspritzvorrichtung (500) an der Einspritzvorrichtungshalterung (300), das ein Halteteil (710, 710', 710"), das eine Außenoberfläche der Kraftstoffeinspritzvorrichtung (500) umgibt und an derselben befestigt ist, und ein Fixierungsteil (720, 720', 720") aufweist, das sich von dem Halteteil (710, 710', 710") nach oben erstreckt und abnehmbar an der Einspritzvorrichtungshalterung (300) fixiert ist,
    bei der eine Fixierungsrille (540) zum Fixieren des Halteteils (710, 710', 710") auf der Außenoberfläche der Kraftstoffeinspritzvorrichtung (500) gebildet ist und ein Durchgangsloch (611), das der Fixierungsrille (540) entspricht, in dem Fixierungsring (610) gebildet ist,
    bei der das Halteteil (710) des Fixierungsbauglieds (700) durch das Durchgangsloch (611) hindurch in der Rille (540) der Kraftstoffeinspritzvorrichtung (500) fixiert ist.
  2. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 1, bei der das Halteteil (710) ein Ablösungsverhinderungsteil (730) aufweist, das mit der Außenoberfläche der Kraftstoffeinspritzvorrichtung (500) in Eingriff steht, um eine Ablösung des Fixierungsbauglieds (700) von der Kraftstoffeinspritzvorrichtung (500) zu verhindern.
  3. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 2, bei der das Ablösungsverhinderungsteil (730) als in Eingriffnahmehöcker gebildet ist, der an einem Endabschnitt des Halteteils (710) zu einer Mitte des Halteteils (710) hin vorsteht.
  4. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 1, bei der an der Einspritzvorrichtungshalterung (300) ein Stufenabschnitt (310) gebildet ist, wobei in dem Fixierungsteil (720) ein Fixierungsloch gebildet ist und wobei das Fixierungsloch des Fixierungsteils (720) mit dem Stufenabschnitt (310) in Eingriff steht.
  5. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 1, bei der das Fixierungsbauglied (700', 700") ferner ein Fixierungsteil (720', 720") aufweist, das sich von dem Halteteil (710', 710") aus nach oben erstreckt und abnehmbar an einer Verbindungseinheit (350) fixiert ist, die zwischen der Einspritzvorrichtungshalterung (300) und dem Anbringansatz (400) gebildet ist.
  6. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 5, bei der ein Vorsprung (351) an der Verbindungseinheit (350) gebildet ist und bei der an dem Fixierungsteil (720') ein mit den Vorsprüngen (351) in Eingriff stehender Fixierungshöcker (721') gebildet ist.
  7. Die Kraftstoffeinspritzvorrichtungsfixierungsstruktur gemäß Anspruch 2 oder 5, bei der das Halteteil (710") ein oberes und ein unteres Bauglied (711 ", 712") aufweist, die Elastizität aufweisen und in einem vorbestimmten Abstand vertikal voneinander beabstandet sind, wobei in zumindest entweder dem oberen und/oder dem unteren Bauglied (711 ", 712") ein Biegeteil (713") gebildet ist und wobei das Halteteil (710") in die Fixierungsrille (540) der Kraftstoffeinspritzvorrichtung (500) eingefügt wird, während das gebogene Teil (713") verformt wird.
EP12156854.7A 2011-02-25 2012-02-24 Befestigungsstruktur einer Kraftstoffeinspritzdüse einer Fahrzeugkraftstoffleiste Active EP2492489B1 (de)

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KR1020110017424A KR101199642B1 (ko) 2011-02-25 2011-02-25 차량용 연료레일의 연료분사기 고정구조

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EP2492489A1 EP2492489A1 (de) 2012-08-29
EP2492489B1 true EP2492489B1 (de) 2015-07-08

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JP5822271B2 (ja) * 2012-02-27 2015-11-24 株式会社ケーヒン 燃料噴射弁の支持構造
JP5822272B2 (ja) * 2012-02-27 2015-11-24 株式会社ケーヒン 燃料噴射弁の支持構造
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