EP0957262B1 - Kraftstoffinjektor - Google Patents

Kraftstoffinjektor Download PDF

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Publication number
EP0957262B1
EP0957262B1 EP19990303515 EP99303515A EP0957262B1 EP 0957262 B1 EP0957262 B1 EP 0957262B1 EP 19990303515 EP19990303515 EP 19990303515 EP 99303515 A EP99303515 A EP 99303515A EP 0957262 B1 EP0957262 B1 EP 0957262B1
Authority
EP
European Patent Office
Prior art keywords
adapter plate
fuel
recess
formations
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990303515
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English (en)
French (fr)
Other versions
EP0957262A2 (de
EP0957262A3 (de
Inventor
Michael Peter Cooke
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP0957262A2 publication Critical patent/EP0957262A2/de
Publication of EP0957262A3 publication Critical patent/EP0957262A3/de
Application granted granted Critical
Publication of EP0957262B1 publication Critical patent/EP0957262B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • 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
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • 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
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • F02M2200/28—Details of throttles in 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation

Definitions

  • This invention relates to a fuel injector for use in delivering fuel under pressure to a cylinder of an internal combustion engine.
  • a number of restricted flow passages must be provided to permit fuel to flow to the bore within which the valve needle is slidable, and to a control valve which controls the fuel pressure within a control chamber to control operation of the injector. It is known to provide such restricted flow passages by forming appropriate bores or drillings in the nozzle body, distance piece or valve housing of the injector. However, the provisions of such drillings or bores requires a high level of precision. As a result, during manufacture the appropriate drillings and bores must be machined into each component to form the necessary passages, and the passages must be honed to the correct dimensions. Each component is then tested and, if necessary, re-honed. It will be appreciated that such a manufacturing process is time consuming and expensive.
  • UK patent 2,112,065 (Daimler-Benz AG) describes an internal combustion engine fuel injection valve filter arrangement.
  • the arrangement comprises valve elements which are clamped against one another by a nozzle lock nut and which have inlet bores leading to the injection needle.
  • a disc-shaped fuel filter is located between two valve elements whose faces bearing against the fuel filter have annular grooves which are connected to the inlet bores.
  • the fuel filter is in the form of a sieve plate whose sieve openings have a diameter of less than 0.15 mm.
  • a filter in the injector to prevent dirt particles from flowing to and damaging or impairing the operation of the control valve.
  • the provision of such a filter increases the number of components present in the injector thus increasing the cost of the injector and increasing the complexity of the assembly process.
  • a fuel injector comprising a nozzle body, a nozzle holder, and an adapter plate located between the nozzle holder and the nozzle body, at least one of the upper and lower surfaces of the adapter plate being shaped to include formations defining recesses so as to form a restricted flow passage between the recesses.
  • the formations conveniently define an orifice through which fuel can flow at a controlled rate towards the bore of the nozzle body, a restricted flow path permitting fuel to flow at a restricted rate to a control chamber, and a flow path connecting the control chamber to a control valve.
  • the adapter plate conveniently further includes formations defining a filter arranged to remove dirt particles from the flow of fuel towards the control chamber and control valve.
  • an adapter plate is advantageous in that production of a fuel injector can be achieved relatively easily at relatively low cost.
  • the formations produced using a micro-machining technique are precisely located, thus permitting the manufacture of large quantities of substantially identical components to a high degree of accuracy without requiring significant post production processing.
  • the invention further relates to a method of manufacturing an injector including the step of micro-machining at least one of the upper and lower surfaces of an adapter plate to produce formations defining recesses therein which, in use, form a restricted flow passage between said recesses.
  • the step of micro-machining the adapter plate may use, for example, photolithography, x-ray lithography, electroforming or laser micro-machining techniques. The use of such techniques permits the production of the formations in the adapter plate in precisely controlled locations at relatively low cost.
  • the injector illustrated in part in Figure 1 comprises a nozzle body 10 having a blind bore 12 formed therein within which a valve needle 14 is slidable, an end of the valve needle 14 being engageable with a seating defined adjacent the blind end of the bore 12 to control the supply of fuel from the bore 12 past the seating to one or more outlet openings formed in the nozzle body 10.
  • the bore 12 is shaped to include an enlarged diameter annular gallery 16 which communicates through a supply passage 18 with a source of fuel under high pressure, for example a common rail charged with fuel to high pressure by an appropriate fuel pump.
  • the bore 12 is shaped to include regions which engage the outer surface of the needle 14 to guide the needle 14 for sliding movement, the needle 14 being shaped to include flutes 20 permitting fuel to flow from the gallery 16 to an annular chamber 22 defined between the wall of the bore 12 and a reduced diameter part of the needle 14.
  • the needle 14 includes angled thrust surfaces which are exposed to the fuel pressure within the bore 12, the application of fuel under high pressure to the bore 12 applying a force to the needle 14 acting in a direction urging the needle 14 away from the seating.
  • the upper end of the nozzle body 10 abuts a distance piece 24 which includes a through bore arranged to align with the bore 12 of the nozzle body 10, and a drilling which forms part of the supply passage 18.
  • the upper end of the needle 14 extends into the through bore of the distance piece 24.
  • An adapter plate 26 abuts the upper surface of the distance piece 24, the adapter plate 26 closing the through bore of the distance piece 24, the adapter plate 26, through bore of the distance piece 24 and upper part of the needle 14 together defining a control chamber 28, the fuel pressure within which acts against the needle 14 applying a force to the needle 14 urging the needle 14 towards its seating.
  • a helical compression spring 30 is located within the control chamber, the spring 30 applying an additional force to the needle 14 urging the needle 14 towards its seating.
  • the upper surface of the adapter plate 26 abuts the lower end surface of a valve housing 32 which includes a drilling forming part of the supply passage 18 and a through bore 34 within which a control valve member 36 is slidable.
  • the control valve member 36 includes a region of reduced diameter which defines, with the bore 34, an annular chamber 38 which communicates via drillings 40 with the lower end surface of the valve housing 32.
  • the valve member 36 further includes a region of enlarged diameter which is engageable with a seating defined around an end part of the through bore 34, engagement of the valve member 36 with the seating controlling communication between the drillings 40 and a chamber 42 which communicates, in use, with a low pressure drain reservoir through an appropriate drilling (not shown).
  • the valve member 36 is biased into engagement with its seating by a spring 44 located within a bore formed in a nozzle holder 46 which abuts the upper surface of the valve housing 32, the nozzle holder 46 further housing an electromagnetic actuator.
  • the actuator is arranged such that, when energized, an armature 48 carried by the valve member 36 is attracted towards the actuator, against the action of the spring 44, to lift the valve member 36 away from its seating.
  • the valve member 36 returns into engagement with its seating under the action of the spring 44.
  • the adapter plate 26 comprises a relatively thin plate, the upper and lower surfaces of which are machined using a micro-machining technique such as photolithography, x-ray lithography, electroforming or laser micro-machining to form a pattern of recesses in the upper and lower surfaces.
  • the recesses formed in the upper surface of the adapter plate 26 extend to a depth of approximately half of the thickness of the adapter plate 26, the recesses formed in the lower surface also extending to a depth of approximately half of the thickness of the adapter plate 26 such that where the recesses in the upper surface and those in the lower surface are aligned with one another, openings are formed in the adapter plate 26 extending completely through the adapter plate 26.
  • these may be machined from only one surface of the plate, if desired.
  • Figures 2 and 4 illustrate the pattern of recesses formed in the upper surface of the adapter plate 26. As shown in Figure 2, a recess 50 is formed which provides communication between the lower end of the bore 34 and an additional through bore 52 which connects the chamber 42 with the lower surface of the valve housing 32.
  • the upper surface of the adapter plate 26 is further provided with formations defining a recess 54 extending from a central part of the adapter plate 26 to a region which, in use, is located adjacent the end of the drilling 40 at the lower surface of the valve housing 32.
  • the recess 54 communicates with a recess 56 through a channel 58 formed in the upper surface of the adapter plate 26 of small dimensions, thus forming a restricted flow passage between the recesses 54, 56.
  • the recess 56 further communicates through a channel 60 of small dimensions with a recess 62 which is located to extend above part of the control chamber 28.
  • the formations defining the recess 62 include a series of fingers 64 which extend across part of the width of the recess 62 and act to transmit the load applied by the spring 30 to the valve housing 32.
  • the formations formed in the upper surface of the adapter plate 26 define an annular wall 66 of relatively small diameter which is aligned with the axis of the part of the supply passage extending through the valve housing 32.
  • surrounding the wall 66 are a plurality of closely spaced walls 68 which together define a filter restricting the flow of dirt particles from the supply passage 18 towards the control chamber 28 and control valve.
  • Figure 3 illustrates the formations formed in the lower part of the adapter plate 26.
  • a small diameter recess 70 which is aligned with the recess defined by the wall 66 is formed in the lower part of the adapter plate 26, the recess defined by the wall 66 and the recess 70 communicating with each other to define a restricted diameter part of the supply passage 18.
  • the centre part of the adapter plate 26 is further provided with a recess 72 which communicates with the recess 54 formed in the upper surface of the adapter plate 26 thus providing a flow path between the control chamber 28 and the drillings 40 which communicate with the control valve.
  • a series of recesses 74 are also formed in the lower surface of the adapter plate 26, the recesses 74 communicating with parts of the recess 62 formed in the upper surface of the adapter plate 26 to form a series of flow paths between the recess 62 and the control chamber 28.
  • the adapter plate 26 is shaped to include regions which, in use, engage dowels 76 used to align the distance piece 24 with the valve housing 32, the dowels 76 accurately locating the adapter plate 26 relative to the remainder of the injector.
  • the overall shape of the adapter plate 26 may be chosen such that the clamping force applied thereto by the cap nut, in use, forms a good seal around the various fuel flow passages and channels, thus reducing leakage.
  • the nozzle body 10, distance piece 24, adapter plate 26 and valve housing 32 are secured to the nozzle holder 46 by means of a screw-threaded cap nut which, in use, engages a shoulder defined between a wide diameter region and a narrower diameter region of the nozzle body 10, and is in screw-threaded engagement with part of the nozzle holder 46.
  • the actuator In order to commence injection, the actuator is energized, lifting the valve member 36 away from its seating thus permitting fuel to escape from the control chamber 28 through the recesses 72, 54 and drillings 40 to the chamber 42 which communicates with the low pressure drain reservoir.
  • Such flow of fuel reduces the fuel pressure applied to the upper end of the valve needle 14, thus reducing the downward force acting upon the needle 14 urging the needle 14 towards its seating.
  • the reduction in fuel pressure within the control chamber 28 will reach a point beyond which the valve needle 14 is able to lift away from its seating thus permitting fuel injection.
  • the movement of the valve needle 14 and the injection of fuel through the outlet openings reduces the fuel pressure within the chamber 22.
  • the restriction defined by the recess 70 and the recess defined by the wall 66 restricts the rate at which fuel is able to flow to the chamber 22, thus it will be appreciated that during injection, the fuel pressure within the recess 22 falls to a level lower than that present in the chamber 22 prior to commencement of injection.
  • the actuator In order to terminate injection, the actuator is de-energized and the valve member 36 returns into engagement with its seating under the action of the spring 44.
  • Such movement of the valve member 36 terminates the flow of fuel to the drain reservoir, and the continued flow of fuel through the channel 58 pressurizes the drillings 40, the recess 54 and the recess 72.
  • the pressure acting upon the part of the valve needle 14 exposed to the fuel pressure within the recess 72 therefore increases, increasing the magnitude of the downward force applied to the needle 14, and a point will be reached beyond which the needle 14 is able to move towards and into engagement with its seating, such movement terminating injection.
  • the pressure within the part of the supply passage 18 downstream of the restriction defined by the recess 70 and the recess defined by the wall 66 increases to substantially that upstream of the restriction.
  • the injector is then ready for commencement of the next injection cycle.
  • the provision of the adapter plate 26 permits the provision of the required passages to permit operation of the injector in a manner which is relatively simple to manufacture and which is of relatively low cost. As described hereinbefore, the adapter plate 26 is machined using an appropriate micro-machining technique which is of low cost and permits precise location of the formations required to permit communication between the various parts of the injector.
  • Figures 5 and 6 illustrate a modification to the arrangement illustrated in Figures 1 to 4.
  • the drillings formed in the valve housing 32 and distance piece 24 which together form part of the supply passage 18 are angled and orientated such that the ends thereof which are presented towards one another are not aligned.
  • a passage 78 is formed in the adapter plate 26, the passage 78 communicating with a recess 80 formed in the upper surface of the adapter plate 26 to form a flow passage extending completely through the adapter plate, the flow passage being shaped to permit communication between the drillings forming the supply passage 18 upstream and downstream of the adapter plate 26.
  • Such an arrangement permits the shape of the supply passage 18 to be contoured to achieve a variety of flow characteristics in the supply of fuel to the chamber 22.
  • the embodiment illustrated in Figures 5 and 6 is substantially identical to that described with reference to Figures 1 to 4.
  • the formations defining the recesses and channels formed in the upper and lower surfaces of the adapter plate 26 can be shaped to optimise the flow characteristics through the respective channels and recesses.
  • the formations defining the recess 54 are shaped to permit fuel to flow through the recess 54 relatively slowly upon opening the control valve, thus permitting relatively accurate control of the rate of movement of the needle 14, but to permit fuel to flow in the reverse direction at a relatively high rate, thus permitting accurate control of the timing of termination of injection.
  • the shapes of the other formations can be chosen similarly.
  • the walls 68 which together define the filter are orientated such that the fuel flow channels defined therebetween are contoured to provide a venturi type section so that the resistance to flow formed by the filter may be minimised.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (8)

  1. Kraftstoffeinspritzventil, umfassend einen Düsenkörper (10), einen Düsenhalter (46) und eine Verbindungsplatte (26), die sich zwischen den Düsenhalter (46) und dem Düsenkörper (10) befindet, wobei mindestens eine der oberen und unteren Außenflächen der Verbindungsplatte (26) so gestaltet ist, dass sie Formgestaltungen umfasst, die Vertiefungen (50, 54, 56, 62, 70, 72, 74) bilden, derart, dass ein verengter Fließkanal (28, 60) zwischen den Vertiefungen (54, 56, 62) entsteht.
  2. Kraftstoffeinspritzventil nach Anspruch 1, worin die Abmessungen der Formgestaltungen derart sind, dass dort, wo eine in der oberen Außenfläche der Verbindungsplatte (26) gebildete Vertiefung mit einer in der unteren Außenfläche ausgebildeten Vertiefung überlappt, sich die Vertiefungen ineinander öffnen, wobei sie einen Kanal bilden, der sich durch die Verbindungsplatte (26) erstreckt.
  3. Kraftstoffeinspritzventil nach Anspruch 1 oder Anspruch 2, worin die Adapterplatten-Formgestaltungen eine Öffnung, durch die Kraftstoff in gesteuerter Menge in Richtung der Bohrung des Düsenkörpers (10) fließen kann, einen verengten Flussweg, der es ermöglicht, dass Kraftstoff in beschränkter Menge zu einer Steuerungskammer fließen kann, und einen Flussweg, der die Steuerungskammer mit einem Steuerungsventil verbindet, definieren bzw. begrenzen.
  4. Kraftstoffeinspritzventil nach einem der voranstehenden Ansprüche, worin die Verbindungsplatten-Formgestaltungen ein Filter (68) bilden, das angeordnet ist, um Schmutzpartikel aus dem Kraftstofffluss zu entfernen.
  5. Verbindungsplatte, die sich zur Verwendung in einem Kraftstoffeinspritzventil der Art eignet, wie es in einem der voranstehenden Ansprüche definiert ist.
  6. Verfahren zum Herstellen eines Einspritzventils, umfassend den Schritt des Mikrobearbeitens mindestens einer der oberen und der unteren Außenflächen einer Verbindungsplatte (26) zur Erzeugung von Formgestaltungen, die darin Vertiefungen definieren, welche im Betrieb einen verengten Fließkanal zwischen diesen Vertiefungen bilden.
  7. Verfahren nach Anspruch 6, worin die Abmessungen der Formgestaltungen derart sind, dass dort, wo eine Vertiefung in der oberen Außenfläche der Verbindungsplatte (26) mit einer Vertiefung in der unteren Außenfläche überlappt, ein Kanal gebildet wird, der sich durch die Verbindungsplatte (26) erstreckt.
  8. Verfahren nach Anspruch 6 oder Anspruch 7, worin die Mikrobearbeitungs-Technik mindestens eine der Techniken Fotolithografie, Röntgenlithografie, Galvanoformen und Laser-Mikrobearbeitung umfasst.
EP19990303515 1998-05-13 1999-05-05 Kraftstoffinjektor Expired - Lifetime EP0957262B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9810208.0A GB9810208D0 (en) 1998-05-13 1998-05-13 Fuel injector
GB9810208 1998-05-13

Publications (3)

Publication Number Publication Date
EP0957262A2 EP0957262A2 (de) 1999-11-17
EP0957262A3 EP0957262A3 (de) 2000-11-22
EP0957262B1 true EP0957262B1 (de) 2004-09-01

Family

ID=10831952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990303515 Expired - Lifetime EP0957262B1 (de) 1998-05-13 1999-05-05 Kraftstoffinjektor

Country Status (4)

Country Link
EP (1) EP0957262B1 (de)
JP (1) JP2000002166A (de)
DE (1) DE69919777T2 (de)
GB (1) GB9810208D0 (de)

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Publication number Priority date Publication date Assignee Title
US10294908B2 (en) 2013-05-21 2019-05-21 Westport Power Inc. Fuel injector

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EP1956230A1 (de) * 2007-02-12 2008-08-13 Delphi Technologies, Inc. Kantenfilter
DE102008007225A1 (de) * 2008-02-01 2009-08-06 Robert Bosch Gmbh Zwischenplatte für einen Kraftstoffinjektor sowie Kraftstoffinjektor
EP2940286A1 (de) * 2014-05-01 2015-11-04 Delphi International Operations Luxembourg S.à r.l. Kraftstoffeinspritzventilfilter
EP2940287A1 (de) * 2014-05-01 2015-11-04 Delphi International Operations Luxembourg S.à r.l. Kraftstoffeinspritzdüsenfilter
GB201417310D0 (en) * 2014-10-01 2014-11-12 Delphi International Operations Luxembourg S.�.R.L. Fuel injector
FR3030009B1 (fr) * 2014-12-10 2017-07-14 Delphi Int Operations Luxembourg Sarl Electrovanne d'injecteur de carburant
FR3051229B1 (fr) * 2016-05-13 2021-02-19 Delphi Int Operations Luxembourg Sarl Injecteur de carburant pour moteur a combustion interne
GB2560513A (en) 2017-03-13 2018-09-19 Ap Moeller Maersk As Fuel injection system
FR3071896B1 (fr) 2017-10-02 2020-02-21 Delphi Technologies Ip Limited Valve avec clapet et siege de clapet aux dimensions stables
FR3075887A1 (fr) * 2017-12-21 2019-06-28 Delphi Technologies Ip Limited Injecteur de carburant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10294908B2 (en) 2013-05-21 2019-05-21 Westport Power Inc. Fuel injector

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Publication number Publication date
JP2000002166A (ja) 2000-01-07
DE69919777T2 (de) 2005-09-15
DE69919777D1 (de) 2004-10-07
GB9810208D0 (en) 1998-07-08
EP0957262A2 (de) 1999-11-17
EP0957262A3 (de) 2000-11-22

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