EP1902212A1 - Soupapes d'injection de carburant pour des moteurs a combustion interne - Google Patents

Soupapes d'injection de carburant pour des moteurs a combustion interne

Info

Publication number
EP1902212A1
EP1902212A1 EP06755107A EP06755107A EP1902212A1 EP 1902212 A1 EP1902212 A1 EP 1902212A1 EP 06755107 A EP06755107 A EP 06755107A EP 06755107 A EP06755107 A EP 06755107A EP 1902212 A1 EP1902212 A1 EP 1902212A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
valve
valve needle
fuel injection
throttle
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.)
Withdrawn
Application number
EP06755107A
Other languages
German (de)
English (en)
Inventor
Friedrich Boecking
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
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1902212A1 publication Critical patent/EP1902212A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/042—The valves being provided with fuel passages
    • F02M61/045—The valves being provided with fuel discharge orifices
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/001—Control chambers formed by movable sleeves
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable 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
    • 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

Definitions

  • the invention relates to a fuel injection valve for internal combustion engines, as it is preferably used for the direct fuel injection in self-igniting internal combustion engines.
  • a fuel injection valve which is assumed in the following.
  • This has a valve body with a longitudinally displaceable valve needle, which cooperates with a valve seat for controlling at least one injection opening.
  • the valve needle is in this case surrounded over a part of its length by a pressure chamber which can be filled with fuel under high pressure and from the fuel depending on the position of the valve needle flows to the injection openings through which the fuel is ultimately injected into the corresponding combustion chamber.
  • the valve needle is surrounded at its valve seat-side end by a sleeve which serves to guide the valve needle.
  • a plurality of openings are formed, which allow an unimpeded fuel flow from the pressure chamber to the injection openings when the valve needle has lifted from the valve seat.
  • the sleeve is supported by a tension spring on the valve needle and remains so in the
  • Opening stroke of the valve needle stationary. Since the valve needle is guided in the sleeve, optimum guidance of the valve needle is ensured in the region of the valve seat, so that there can be no offsetting with respect to the valve seat. This always guarantees a uniform inflow of fuel to the individual injection openings.
  • the fuel flow to the injection openings can be selectively throttled in a targeted manner so that the injection rate is not determined solely by the interaction of the valve needle with the valve seat. This is achieved, for example, by a stroke-dependent throttling, wherein various embodiments have been proposed in the prior art. From the utility model application DE 297 13 071 Ul, for example, a fuel injection nozzle is known which has at its injection-side end a pin which projects into a blind hole from which the injection openings emanate. Depending on
  • the known fuel injection valves have the disadvantage that the leadership of the valve needle in the valve seat near the area on the one hand and the injection rate shaping on the other hand require different measures that must be performed simultaneously. As a result, the fuel injection valve becomes more expensive and additional space is required.
  • the fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage over that with simple means a Einspritzverlaufsformung and thus a quieter and quieter combustion course is made possible.
  • an annular space is formed between the sleeve and the valve needle, which is permanently connected to the pressure chamber surrounding the valve needle via a throttle connection.
  • a flow cross-section which is controlled by the opening stroke of the valve needle and which is formed between the sleeve and the valve needle.
  • the throttle connection is formed by openings in the sleeve, preferably by radial bores. Since the sleeve is manufactured separately outside the valve body, these radial bores can be precisely introduced without great effort, so that the throttling effect can be set so precisely.
  • the flow cross section is controlled by the fact that a throttle collar, which is formed on the valve needle, emerges from the sleeve during the opening stroke movement.
  • a throttle collar which is formed on the valve needle, emerges from the sleeve during the opening stroke movement.
  • This embodiment is particularly advantageous when a chamfering adjoins the throttle collar, so that the flow cross-section is not opened suddenly but gradually, whereby the pressure build-up in the annular space can be additionally influenced. It is also possible that this chamfering is not formed on the valve needle, but on the inner wall of the sleeve, which in principle results in the same effect.
  • the valve needle comes after a partial stroke of their entire opening stroke to a stop to the system, which is formed on the sleeve, so that the valve needle lifts the sleeve from the valve seat in their further stroke movement.
  • an additional flow cross-section is opened, which is now controlled between the end face of the sleeve, which rests in the closed state of the fuel injection valve on the valve seat, and the valve seat.
  • the amount of fuel supplied to the injection openings can be increased once more.
  • the throttle connection is formed in that a radial bore is formed in the sleeve, which is formed by the throttle collar which is formed on the valve needle, in the closed position of the valve needle is partially hidden.
  • the valve needle controls the entire radial bore, so that now the full flow cross-section is ensured in the annulus.
  • th embodiment may be formed instead of the radial bore in the sleeve, a connection bore in the valve needle, the mecanicsöffhung is partially covered by the sleeve in the closed position of the valve needle. During the opening stroke of the valve needle, the inlet opening emerges from the sleeve, so that thereby the entire flow cross-section is released.
  • Fuel injection valve shown. It shows
  • Figure 1 shows a fuel injection valve according to the invention in longitudinal section
  • Figure 2, Figure 3, Figure 4, Figure 4a, Figure 5, Figure 6 and Figure 7 show different embodiments of the fuel injection valve according to the invention in the region of the valve seat, wherein in each case only one half of the fuel injection valve is shown, and
  • FIG. 8 shows a further exemplary embodiment, the region near the valve seat being shown here in partially sectioned illustration.
  • the fuel injection valve 1 shows a fuel injection valve according to the invention is shown in longitudinal section.
  • the fuel injection valve 1 has a valve body 2, in which a bore 3 is formed.
  • the bore 3 is bounded at its combustion chamber end by a valve seat 7 and extends at its opposite end into a spring chamber 14.
  • a valve needle 4 is longitudinally displaceable, which is surrounded in the region of the spring chamber 14 by a closing spring 16, the the valve needle 14 presses against the valve seat 7 with a valve sealing surface 12 formed on the valve needle 14.
  • the valve needle 4 With its end face remote from the valve seat, the valve needle 4 delimits a pressure chamber 18, in which an alternating force is generated by a device, not shown in the drawing. material pressure can be built with the valve needle 4 is additionally pressed in the direction of the valve seat 12.
  • the valve needle 4 is surrounded at its valve seat-side end by a sleeve 5, which is supported on a pressure shoulder 8 of the valve needle 4 via a tension spring 6.
  • the tension spring 6 ensures that the sleeve 5 always remains in contact with the valve seat 7, so that it remains stationary during the opening push movement of the valve needle 4.
  • a pressure chamber 11 is formed, which continues in the spring chamber 14 and can be filled with fuel under high pressure.
  • Valve needle 4 an annular space 10 is formed, which is connected via one or more throttle connections, here in the form of throttle bores 21, with the pressure chamber 11.
  • the basic operation of the fuel injection valve is from the
  • valve needle 4 moves in the fuel injection valve according to the invention by increasing or decreasing the pressure in the control chamber 18, so that the valve needle 4 by the pressure in the control chamber 18 on the one hand and the pressure in the pressure chamber 11 on the other hand moves in the longitudinal direction and this from
  • Valve seat 7 lifts off or sits on this. If the valve needle 4 has lifted off the valve seat 7, fuel flows from the pressure chamber 11 into the annular space 10 and from there to the injection openings 9, through which the fuel is ultimately injected into the combustion chamber of the internal combustion engine.
  • FIG. 2 shows an enlargement of FIG. 1 in the region of the valve seat 7.
  • the valve needle 4 has at its valve seat side end a guide collar 20 on which a plurality of bevels 22 are formed, which allow unimpeded inflow of fuel from the annular space 10 to the injection openings 9 ,
  • the annular space 10 is connected via at least one throttle bore 21 to the pressure chamber 11, while the annular space 10 faces away from the valve seat 7 and is closed by the interaction of a throttle collar 24 with the sleeve 5, wherein the throttle collar 24 a distance hj is immersed in the sleeve 5 ,
  • a chamfer 28 which has a height h 2 and is provided here with a bevel angle a.
  • valve needle 4 Moved to injection the valve needle 4 away from the valve seat 7, so that between the valve sealing surface 12 and the valve seat 7 fuel from the annulus 10 to the injection ports 9 can flow. Since the throttle bores 21 allow only a certain flow of fuel into the annular space 10, only a small amount of fuel is injected through the injection ports 9 at low pressure. Does the valve needle 4 the
  • FIG 3 shows another embodiment in the same representation as Figure 2, this embodiment differs from the embodiment of Figure 2 only in that here no chamfering on the valve needle 4, but for a chamfer 29 is formed on the inside of the sleeve 5, the here has a bevel angle b. At the end of the chamfer 29, the control edge 30 is formed here. If the valve needle 4 has passed through the partial stroke hj, the throttle collar 24 dips into the chamfer 29, so that the flow cross section is opened between the control edge 30 and the valve needle 4, by means of which the fuel is supplied increasingly unthrottled to the injection openings.
  • FIG. 4 and FIG. 4 a show a further exemplary embodiment in which, unlike in the exemplary embodiment of FIG. 2, the chamfering does not exceed the velvet periphery of the valve needle 4 is executed, but individual grooves 32 are formed, which ensure the flow cross-section to the annulus 10.
  • a plurality of grooves 32 are formed distributed over the circumference of the valve needle 4. Depending on the width of the grooves 32 and on their bevel angle c, the profile of the flow cross-section can be compared to the stroke of the
  • FIG. 5 shows a further exemplary embodiment in the same illustration as FIG.
  • a plurality of throttle bores 21 are formed, but here have a significantly larger diameter than the throttle bores 21 of Figures 2 to 4a.
  • the throttle collar formed on the valve needle 4 is in this case designed such that a control edge 33 is formed at its valve seat-side end, which partially closes the throttle bores 21 in the closed position of the valve needle 4.
  • a throttle connection is produced by which the annular space 10 is connected to the pressure chamber 11.
  • Opening stroke of the valve needle 4 is the control edge 33, the throttle holes 21 gradually free until after driving through the stroke h 3, the entire cross-section of the throttle holes 21 is available. Due to the large diameter of the throttle bores 21, an almost unthrottled supply of fuel from the pressure chamber 11 is now possible.
  • FIG. 6 shows a further exemplary embodiment, in which the annular space 10 is formed by an undercut 38 on the valve needle 4.
  • the throttle connection of the annular space 10 to the pressure chamber 11 is formed by a connecting bore 37 on the valve needle 4, wherein the inlet opening 39 of the connecting bore 37 is partially covered by the sleeve 5 in the closed position of the valve needle 4.
  • the control edge 30, which is formed on the sleeve 5, covers a part of the inlet opening 39, thereby forming a throttle connection.
  • the inlet opening 39 emerges from the sleeve 5 and thus allows an unthrottled influx of fuel into the annular space 10.
  • FIG. 7 shows a further exemplary embodiment in which the throttle connection is produced in that a control edge 33 is formed on the throttle collar 24, between the latter and a recess 40 in the sleeve 5 a close Gap remains when the valve needle 4 is in its closed position.
  • This gap is increasingly widened by the lift stroke movement of the valve needle 4, so that a flow cross-section is thereby formed, which is essentially formed by the cross-section of the recess 40.
  • an unthrottled influx of fuel into the annulus 10 is also possible.
  • FIG. 8 shows a further exemplary embodiment in which different connections are formed in the sleeve 5, firstly throttle connections 21 which connect the annular space 10 to the pressure chamber 11 in the manner already shown above, and secondly valve boreholes 46 are provided for this purpose. which have a significantly higher cross-section and which allow an unthrottled influx of fuel into a further annular space 13, the valve seat facing away from the annular space 10 between the valve needle 4 and the sleeve 5 is formed.
  • a stop surface 42 is formed here, to which an intermediate washer 44 abuts for the exact adjustment of the opening stroke of the valve needle 4.
  • This opposite is a shoulder 41 formed on the valve needle 4, which has an axial distance h 5 in the closed position of the valve needle 4 of the intermediate disc 44.
  • the operation of this embodiment is as follows:
  • the annular space 10 is connected to the injection openings 9 during the opening stroke of the valve needle 4, as in the preceding embodiments.
  • the throttle collar 24 passes a control edge 30 on the inside of the sleeve 5, so that thereby a flow cross-section between the further annular space 13 and the annular space 10 is opened in the manner already shown above.
  • fuel now additionally flows through the inlet bore 46 and the further annular space 13 via the first annular space 10 to the injection openings 9.
  • valve needle 4 In the course of the opening stroke, the valve needle 4 finally reaches the stroke h 5 and comes with her shoulder 41 on the washer 44 to the plant , As a result, the sleeve 5 is taken along by the valve needle 4 in the further course of the opening stroke movement and lifts off from the valve seat 7. This controls an additional flow cross-section between the sleeve 5 and the valve seat 7, which again causes an increased fuel supply to the injection openings 9 and thus a higher effective injection pressure.
  • the injection course formation comprises three stages: once in the throttled inlet as long as the valve needle 4 has not yet passed through the stroke h 4 , a stronger flow, as long as the valve needle 4 has not yet passed through the stroke h 5 , and finally an even stronger inflow to the injection openings 9, if the valve needle 4 has lifted the sleeve 5 from the valve seat 7.
  • the stroke I15 must be greater than the stroke h 4 . This can be adjusted exactly over the thickness of the washer 44 in particular.
  • the sleeve 5 is always supported by a tension spring 6 on a shoulder 48 of the valve needle 4, even if this is not explicitly shown in the figure.
  • the throttle collar 20 is in any case necessary if there is a risk that it comes to the control edge 30 of the sleeve 5 to a hooking between the valve needle 4 and the sleeve 5.
  • the fuel injection valve according to the invention may preferably at a
  • Common rail system can be used, in which the pressure chamber 11 is connected to a high-pressure accumulator, in which fuel is always maintained under a predetermined high fuel pressure.
  • the control of the fuel pressure in the control chamber 18 is then preferably via a solenoid or piezo valve.

Landscapes

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

Abstract

L'invention concerne une soupape d'injection de carburant qui comprend un corps de soupape (2) dans lequel un pointeau de soupape (4) est logé de manière à pouvoir se déplacer longitudinalement et coopère avec un siège de soupape (7) pour la commande d'au moins un orifice d'injection (9). Une gaine (5) entoure le pointeau de soupape (4) à l'extrémité du côté du siège de soupape. Sur au moins une partie de sa longueur, le pointeau de soupape (4) est entouré d'une chambre de pression (11) qui peut être remplie de carburant sous haute pression. Entre la gaine (5) et le pointeau de soupape (4) se trouve une chambre annulaire (10) qui est constamment reliée au moyen d'une liaison d'étranglement (21 ; 37) à la chambre de pression (11) entourant le pointeau de soupape (4). Le mouvement de course d'ouverture du pointeau de soupape (4) ouvre une section d'écoulement qui relie la chambre de pression (11) à la chambre annulaire (10).
EP06755107A 2005-07-01 2006-05-09 Soupapes d'injection de carburant pour des moteurs a combustion interne Withdrawn EP1902212A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005030868A DE102005030868A1 (de) 2005-07-01 2005-07-01 Kraftstoffeinspritzventile bei Kraftmaschinen
PCT/EP2006/062167 WO2007003458A1 (fr) 2005-07-01 2006-05-09 Soupapes d'injection de carburant pour des moteurs a combustion interne

Publications (1)

Publication Number Publication Date
EP1902212A1 true EP1902212A1 (fr) 2008-03-26

Family

ID=36716622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06755107A Withdrawn EP1902212A1 (fr) 2005-07-01 2006-05-09 Soupapes d'injection de carburant pour des moteurs a combustion interne

Country Status (3)

Country Link
EP (1) EP1902212A1 (fr)
DE (1) DE102005030868A1 (fr)
WO (1) WO2007003458A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035752A1 (de) * 2007-07-31 2009-02-05 Robert Bosch Gmbh Kraftstoffinjektor mit einer auf dem Kegelventilsitz einer Düsennadel aufsitzenden Zentrierhülse als Führung für die Düsennadel
DE102007062792A1 (de) 2007-12-27 2009-07-02 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102008012356A1 (de) 2008-03-03 2009-09-10 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
DE102010003202A1 (de) * 2010-03-24 2011-09-29 Robert Bosch Gmbh Common-Rail-Injektor mit druckausgeglichenem Schaltventil und zusätzlichem Speichervolumen
EP2799706A1 (fr) * 2013-05-01 2014-11-05 Delphi International Operations Luxembourg S.à r.l. Buse à injection
DE102013213460A1 (de) * 2013-07-09 2015-01-15 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
GB201408422D0 (en) * 2014-05-13 2014-06-25 Delphi Int Operations Lux Srl Fuel injector
DE102016208055A1 (de) * 2016-05-11 2017-11-16 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518945A1 (de) * 1985-05-25 1986-11-27 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoff-einspritzduese fuer brennkraftmaschinen
DE3734587A1 (de) * 1987-10-13 1989-05-03 Bosch Gmbh Robert Kraftstoff-einspritzduese fuer brennkraftmaschinen
DE9301992U1 (de) 1993-02-12 1994-06-16 Robert Bosch Gmbh, 70469 Stuttgart Kraftstoffeinspritzdüse für Brennkraftmaschinen
DE29713071U1 (de) 1997-07-23 1998-11-19 Robert Bosch Gmbh, 70469 Stuttgart Kraftstoffeinspritzdüse
DE19755057A1 (de) * 1997-12-11 1999-06-17 Bosch Gmbh Robert Kraftstoffeinspritzdüse für selbstzündende Brennkraftmaschinen
JP4221913B2 (ja) * 2001-04-26 2009-02-12 トヨタ自動車株式会社 燃料噴射装置
DE102004055873A1 (de) * 2004-11-19 2006-05-24 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102004060552A1 (de) * 2004-12-16 2006-06-22 Robert Bosch Gmbh Kraftstoffeinspritzventil für eine Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007003458A1 *

Also Published As

Publication number Publication date
WO2007003458A1 (fr) 2007-01-11
DE102005030868A1 (de) 2007-01-11

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