EP1339966B1 - Injecteur comportant deux pointeaux d'injection pouvant etre commandes separement - Google Patents

Injecteur comportant deux pointeaux d'injection pouvant etre commandes separement Download PDF

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Publication number
EP1339966B1
EP1339966B1 EP01997634A EP01997634A EP1339966B1 EP 1339966 B1 EP1339966 B1 EP 1339966B1 EP 01997634 A EP01997634 A EP 01997634A EP 01997634 A EP01997634 A EP 01997634A EP 1339966 B1 EP1339966 B1 EP 1339966B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
injection
needle
nozzle needle
pressure
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
EP01997634A
Other languages
German (de)
English (en)
Other versions
EP1339966A1 (fr
Inventor
Gerhard Mack
Thomas Kuegler
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 EP1339966A1 publication Critical patent/EP1339966A1/fr
Application granted granted Critical
Publication of EP1339966B1 publication Critical patent/EP1339966B1/fr
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
    • 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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
    • 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

Definitions

  • the invention relates to an injection nozzle for internal combustion engines according to the preamble of claim 1.
  • the two nozzle needles are controlled separately from one another.
  • the operating behavior of the second nozzle needle scatters relatively strong at different identical nozzle needles.
  • the two nozzle needles are each controlled by a high-pressure fuel pump.
  • the object of the invention is to provide an injection nozzle which is more variable in terms of injection molding and atomization and in which the operating behavior of various series-produced injection nozzles is spread within narrow limits. This makes it possible to use internal combustion engines that are more economical in consumption, lower emissions and quieter.
  • the injection nozzle according to the invention and inexpensive to manufacture and without larger Changes to the cylinder head of the internal combustion engine can be used.
  • injection systems should be cheaper than known systems with the same variability.
  • the at least one first injection hole can be controlled in a simple manner independently of the at least one second injection hole. This makes it possible in certain operating points of the internal combustion engine during injection to open only the at least one first injection hole and thus to inject the fuel quantity to be injected through a relatively small injection hole cross-section into the combustion chamber. As a result, first, smaller amounts of fuel injection can be injected with greater precision and, moreover, it is distributed at high speed through the at least one first Spray hole in the combustion chamber injected fuel better, which has a positive effect on the efficiency and emission and noise behavior of the internal combustion engine.
  • the stroke stop according to the invention the maximum opening of the second nozzle needle is set constructively with great repeatability.
  • the at least one second injection hole can be opened immediately after opening the first injection hole or with a freely selectable time delay, so that a large amount of fuel can be injected into the combustion chamber through the two injection holes in the shortest possible time. Due to the time delay of the opening of the first and second injection hole, the injection process can be freely formed within a large range. This results in advantages in terms of efficiency, noise and emission behavior of the internal combustion engine.
  • the injection nozzle according to the invention does not take up more space than an injection nozzle according to the prior art and still comes without miniaturized components, which has a positive effect on the manufacturing costs and mass production.
  • a controllable with a control pressure control space is present, and that one on the second Düesennadel acting and arranged in the control chamber second nozzle spring is present, so that the second nozzle needle is pressed by the second nozzle spring in its closed position and the closing force, which is composed of the spring force of the second nozzle spring and the pressure resulting from the control pressure in the control chamber, by the Control of the control pressure can be controlled within wide limits and with high temporal resolution.
  • the nozzle body is made in several parts and has an intermediate ring and a nozzle holding body, and / or that in the guide bore a guide bush is provided, which also serve as a stroke stop for the second nozzle needle can.
  • a guide bush is u. a. therefore particularly advantageous because the guide bush wear-resistant material can be made and in the case of Verscheli touchs the guide bushing only the guide bush, but not the entire injector must be replaced.
  • the intermediate ring serves as a stroke stop for the first nozzle needle, so that the stroke of the first nozzle needle is adjustable with great accuracy.
  • a control piston is guided in the guide bush, which delimits the control chamber, and transfers the pressure force resulting from the control pressure in the control chamber to the second nozzle needle, so that the end face of the control piston can be selected independently of the diameter of the guide bore.
  • the first nozzle spring at least indirectly, for example via a shim, supported on the guide bushing on the nozzle body.
  • the guide bush can also serve as a stroke stop for the second nozzle needle, so that their stroke is limited.
  • a pressure pin is provided between the first nozzle spring and the first nozzle needle, which transmits the closing force of the first nozzle spring to the first nozzle needle, so that a compact and simple design is realized.
  • the pressure pin serves as a stroke stop for the second nozzle needle
  • the stroke stop for the second nozzle needle can be set more precisely, since the axial distance of the second sealing cone and stroke stop is very short.
  • the second nozzle needle is closed at the same time with the first nozzle needle, so that undesired fuel spills in the combustion chamber are avoided by the second injection holes.
  • the pressure pin is guided by the nozzle body, in particular by the intermediate ring of the nozzle body, and / or that the pressure pin takes over the guidance of the second nozzle needle at least partially, so that production, assembly and function are further improved.
  • the second nozzle needle is made in two parts, so that the manufacture and assembly are simplified.
  • the cross section of the at least one first injection hole and the cross section of the at least one second injection hole is the same, so that there is good atomization of the fuel in the combustion chamber at all operating points.
  • FIG. 1 shows an embodiment of an injection nozzle according to the invention is shown in longitudinal section.
  • a nozzle body 1 To a nozzle body 1, an intermediate disc 3 and a nozzle holding body 5 close.
  • Nozzle body 1, washer 3 and nozzle holding body 5 may also be integrally formed.
  • the multi-part embodiment shown in Figure 1 offers advantages in terms of production, installation and adjustment of the injector.
  • Nozzle body 1, washer 3 and nozzle holding body 5 are clamped together by a union nut 6.
  • the washer 3 simultaneously provides a stroke stop for the first Nozzle needle 7 is.
  • a first nozzle needle 7 is guided in a guide bore 9.
  • the guide bore 9 is also continued in the washer 3 and the nozzle holding body 5 and has changing diameter.
  • a pressure chamber 11 is formed, which is bounded by a pressure shoulder 13 of the first nozzle needle 7. Fuel can be conveyed by a high-pressure fuel pump, not shown, into the pressure chamber 11 via a high-pressure inlet 15.
  • a first nozzle spring 17 presses the first nozzle needle 7 via a pressure pin 18 into a first sealing seat 19 at the end of the nozzle body 1 which is shown only schematically in FIG.
  • first nozzle needle 7 In the closed state of the first nozzle needle 7 prevents a sealing cone 21 of the first nozzle needle 7 in conjunction with the first sealing seat 19 that fuel from the pressure chamber 11 passes through a first injection hole 23 in the combustion chamber, not shown in Figure 1, also not shown internal combustion engine.
  • the tip of the nozzle needle according to the invention is shown in detail in Figure 2 and will be explained in more detail with reference to this figure.
  • the operation of the first nozzle needle 7 corresponds to the operation of a conventional injection nozzle. If the pressure force exerted on the pressure shoulder 13 of the fuel located in the pressure chamber 11 is greater than the closing force of the first nozzle spring 17, the first nozzle needle 7 lifts off the first sealing seat 19 and thus releases the at least one first injection hole 23 and the injection begins. This fuel flows from the Pressure chamber 11 through an annular gap formed by the guide bore 9 and the first nozzle needle 7 (not shown) in the direction of the first injection hole 23rd
  • the first nozzle needle 7 has a central bore 25 in which a second nozzle needle 27 is guided.
  • the second nozzle needle 27 is designed in two parts in the embodiment shown in Figure 1 and consists of the sections 27a and 27b.
  • the two-part design of the second nozzle needle 27 has manufacturing and assembly reasons.
  • a guide bush 29 is provided at the upper end of the guide bore 9, in which a control piston 31 is guided.
  • a second nozzle spring 35 is arranged, which brings the control piston 31 in abutment with the second nozzle needle 27.
  • the end 33 of the guide bore 9 and the control piston 31 define a control chamber 37 into which a control pressure inlet 39 opens.
  • the control chamber 37 is filled with a hydraulic fluid whose pressure can be controlled via the control pressure inlet 39.
  • Hydaulikfluid can fuel, engine oil u. a. m. be used.
  • the pressure of the filled with hydraulic fluid control chamber 37 acts via the control piston 31 rectified with the second nozzle spring 35 to the second nozzle needle 27 and presses them into a second, not shown in Figure 1 valve seat.
  • the closing force of the second nozzle needle 27 can be reduced so far that the second nozzle needle 27 opens.
  • a bottom 41 of the guide bush 29, together with a shoulder 43 of the second nozzle needle a Hubanschlag for the second nozzle needle 27 is.
  • the first nozzle spring 17 is supported via a dial 45 and the guide bush 29 against the nozzle holding body 5 from.
  • the dial 45 By replacing the dial 45, the bias of the first nozzle spring 17 can be adjusted in the simplest way and with great precision.
  • the tip of an injection nozzle according to the invention is shown enlarged.
  • the first sealing cone 21 of the first nozzle needle 7 and the corresponding counterpart in the nozzle body 1 are designed so that there is a line contact.
  • This contact line is referred to as the first sealing seat 19 and is shown in Figure 2 as a dashed line.
  • the first sealing seat 19 separates the fuel, which is under high pressure in an annular gap 47 between guide bore 9 and first nozzle needle 7, from the first spray holes 23 when the injection nozzle is closed.
  • two first injection holes 23 are shown, which are opposite to each other.
  • second injection holes 49 are shown.
  • the second injection holes 49 are sealed by a second sealing cone 51 and the corresponding counterpart of the nozzle body 1.
  • the second sealing seat 53 there is again a line-shaped contact surface between the second sealing cone 51 and the nozzle body 1, which is referred to below as the second sealing seat 53.
  • the high-pressure fuel system which u. a. having a high-pressure fuel pump, promotes fuel at high pressure via the high-pressure inlet 15 into the pressure chamber 11, lifts the first nozzle needle 7 from the first sealing seat 19 as soon as the force exerted by the fuel in the pressure chamber 11 on the pressure shoulder 13 pressure force is greater than the closing force of the first nozzle spring 17.
  • the fuel from the pressure chamber 11 can flow through the annular gap 47 through the first injection holes-23 in the combustion chamber, not shown.
  • the injection is optimal when the fuel is injected exclusively through the first injection holes 23.
  • the second nozzle needle 27 can additionally be opened. This happens because the pressure in the control chamber 37 is lowered. Since the second sealing seat 53 has a smaller diameter than the second nozzle needle 27, the fuel under high pressure, which flows out of the annular gap 47 in the direction of the first injection holes 23, exerts an opposing force on an annular surface 55 of the second nozzle needle 27. The annular surface 27 is bounded by the second sealing seat 53 and the outer diameter of the second nozzle needle 27.
  • FIG. 3 a second embodiment of a non-injection nozzle according to the invention is shown. Because of the correspondence with the first embodiment with regard to components and function, reference is made to what has been said with respect to FIGS. 2 and 2 and only the differences are explained below.
  • the second nozzle needle 27 is divided at the level of the pressure pin 18.
  • the upper part 27b of the second nozzle needle 27 has a smaller diameter when passing through the pressure pin 18 than the lower part 27a of the second nozzle needle 27.
  • a center bore 57 of the pressure pin which guides the upper part 27b of the second nozzle needle 27 also has a smaller diameter Therefore, the lower in Fig. 3 end 59 of the pressure pin 18 forms a stroke stop for the nozzle needle 27. Because of the shorter compared to the first embodiment, the second seal seat (see Fig.
  • the stroke stop formed by the lower end 59 of the pressure pin 18 can firstly adjust the stroke of the nozzle needle more precisely and secondly it is ensured that the stroke of the second nozzle needle 27 depends on the stroke of the first nozzle needle 7.
  • the stroke of the second nozzle needle 27 may be greater than the stroke of the first nozzle needle 7 at the maximum in the stroke play designated 61 in FIG.
  • the pressure pin 18 When the first nozzle needle 7 closes, the pressure pin 18 also displaces the second nozzle needle 27 by the stroke clearance 61. As a result, after-splashes from the second spray holes 49 (see FIG. 2) into the combustion chamber (not shown) are prevented.

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

Claims (13)

  1. Injecteur pour moteurs à combustion interne, comprenant un corps d'injecteur (1) présentant au moins un premier orifice d'injection (23) et au moins un second orifice d'injection (49) une première aiguille d'injecteur (7) guidée dans un alésage de guidage (9) du corps d'injecteur (1) et en forme d'aiguille creuse, une seconde aiguille d'injecteur (27) coaxiale par rapport à la première aiguille d'injecteur (7), un piston de commande (31) guidé dans l'alésage de guidage (9) et délimitant une chambre de commande (37) pour transmettre la force résultant de la pression de commande dans la chambre de commande (37) sur la seconde aiguille d'injecteur (27), la première aiguille d'injecteur (7) commandant l'injection de carburant par au moins un premier orifice d'injection (23), alors que la seconde aiguille d'injecteur (27) commande l'injection de carburant par au moins un second orifice d'injection (49), avec un manchon de guidage (29) guidant dans l'alésage de guidage (9) le piston de commande (31), et avec une chambre de commande (37) contenant un liquide hydraulique exerçant une force sur la seconde aiguille d'injecteur (27) dans sa direction de fermeture,
    caractérisé en ce que
    le manchon de guidage (29) sert de butée de course pour la seconde aiguille d'injecteur (27), et un second ressort d'injecteur (35) est disposé entre le piston de commande (31) et une extrémité (33) de l'alésage de guidage (9).
  2. Injecteur selon la revendication 1,
    caractérisé en ce que
    le corps d'injecteur (1) présente une chambre de pression (11) dont la première extrémité est délimitée par un épaulement de pression (13) de la première aiguille d'injecteur (7), la première aiguille d'injecteur (7) présente un premier cône d'étanchéité (21) coopérant avec un premier siège d'étanchéité (19) du corps d'injecteur (1), la seconde aiguille d'injecteur (27) présente un deuxième cône d'étanchéité (51) coopérant avec un deuxième siège d'étanchéité (53) du corps d'injecteur (1), et un premier ressort d'injecteur (17) s'appuie d'un côté contre le corps d'injecteur (1) et de l'autre côté conte la première aiguille d'injecteur (7).
  3. Injecteur selon la revendication 1 ou 2,
    caractérisé en ce que
    la chambre de commande (37) est dans le corps d'injecteur (1) et un deuxième ressort d'injecteur (35) agit sur la seconde aiguille d'injecteur (27).
  4. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    le corps d'injecteur (1) est en plusieurs parties avec un anneau intermédiaire (3) ainsi qu'un corps de maintien d'injecteur (5).
  5. Injecteur selon la revendication 4,
    caractérisé en ce que
    l'anneau intermédiaire (3) sert de butée de course pour la première aiguille d'injecteur (7).
  6. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier ressort d'injecteur (17) s'appuie au moins indirectement, via le manchon de guidage (29), ou directement, contre le corps d'injecteur (5).
  7. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier ressort d'injecteur (17) s'appuie, par l'intermédiaire d'une rondelle de réglage (45), contre le manchon de guidage (19) ou contre le corps d'injecteur (5).
  8. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce qu'
    entre le premier ressort d'injecteur (17) et la première aiguille d'injecteur (7), une tête de pression (18) transmet la force de fermeture du premier ressort d'injecteur (17) sur la première aiguille d'injecteur (7).
  9. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    la tête de pression (18) sert de butée de course pour la deuxième aiguille d'injecteur (27).
  10. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    la tête de pression (18) est guidée par le corps d'injecteur (1), en particulier par la bague intermédiaire (3) du corps d'injecteur (1).
  11. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    la tête de pression (18) assure au moins partiellement le guidage de la deuxième aiguille d'injecteur (27).
  12. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    la deuxième aiguille d'injecteur (27) est en deux parties (27a, 27b).
  13. Injecteur selon l'une des revendications précédentes,
    caractérisé en ce que
    les sections transversales du ou des premier(s) orifice(s) d'injection (23) et les sections transversales du ou des deuxième(s) orifice(s) d'injection (49) sont de même taille.
EP01997634A 2000-11-22 2001-11-17 Injecteur comportant deux pointeaux d'injection pouvant etre commandes separement Expired - Lifetime EP1339966B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2000158153 DE10058153A1 (de) 2000-11-22 2000-11-22 Einspritzdüse mit separat steuerbaren Düsennadeln
DE10058153 2000-11-22
PCT/DE2001/004338 WO2002042631A1 (fr) 2000-11-22 2001-11-17 Injecteur comportant deux pointeaux d'injection pouvant etre commandes separement

Publications (2)

Publication Number Publication Date
EP1339966A1 EP1339966A1 (fr) 2003-09-03
EP1339966B1 true EP1339966B1 (fr) 2006-06-14

Family

ID=7664381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01997634A Expired - Lifetime EP1339966B1 (fr) 2000-11-22 2001-11-17 Injecteur comportant deux pointeaux d'injection pouvant etre commandes separement

Country Status (5)

Country Link
EP (1) EP1339966B1 (fr)
CZ (1) CZ298453B6 (fr)
DE (2) DE10058153A1 (fr)
PL (1) PL355415A1 (fr)
WO (1) WO2002042631A1 (fr)

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DE10163654A1 (de) * 2001-12-21 2003-07-03 Bosch Gmbh Robert Kraftstoffeinspritzsystem für Brennkraftmaschinen
DE10229417A1 (de) * 2002-06-29 2004-01-15 Robert Bosch Gmbh Speichereinspritzsystem mit Variodüse und Druckübersetzungseinrichtung
DE10233099A1 (de) * 2002-07-20 2004-02-05 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10246973A1 (de) * 2002-10-09 2004-04-22 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE10315820A1 (de) * 2002-11-11 2004-05-27 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE50305296D1 (de) 2002-11-11 2006-11-16 Bosch Gmbh Robert Kraftstoffeinspritzventil für brennkraftmaschinen
DE10320491B4 (de) * 2003-05-08 2014-05-08 Volkswagen Ag Kraftstoffeinspritzventil für eine Brennkraftmaschine
DE10326044A1 (de) 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10326045A1 (de) * 2003-06-10 2004-12-30 Robert Bosch Gmbh Einspritzdüse für Brennkraftmaschinen
DE10337609A1 (de) * 2003-08-16 2005-03-10 Bosch Gmbh Robert Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Direkteinspritzung
DE10344942B4 (de) * 2003-09-27 2017-12-21 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine
DE102004002083A1 (de) 2004-01-15 2005-08-04 Robert Bosch Gmbh Ventil zum Steuern von Flüssigkeiten, insbesondere Kraftstoffeinspritzventil
DE102004002090A1 (de) 2004-01-15 2005-08-04 Robert Bosch Gmbh Einspritzdüse und zugehöriges Betriebsverfahren
FR2868480B1 (fr) 2004-04-02 2008-05-02 Peugeot Citroen Automobiles Sa Moteur a combustion interne a injection directe
DE102004020550A1 (de) * 2004-04-27 2005-11-24 Robert Bosch Gmbh Einspritzdüse
DE102004057246A1 (de) * 2004-11-26 2006-06-01 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102004057245A1 (de) * 2004-11-26 2006-06-01 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102004057244A1 (de) 2004-11-26 2006-06-01 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102004060550A1 (de) 2004-12-16 2006-07-06 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102008057209B4 (de) * 2008-11-13 2010-09-09 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine mit mindestens einem Zylinder und mindestens einem Stellglied
DE102017007863A1 (de) 2017-08-21 2019-02-21 Daimler Ag Abgasanlage für eine Verbrennungskraftmaschine, insbesondere für ein Kraftfahrzeug, sowie Verfahren zum Betreiben einer solchen Abgasanlage

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DE4115477C2 (de) * 1990-05-17 2003-02-06 Avl Verbrennungskraft Messtech Einspritzdüse für eine Brennkraftmaschine
DE4214646A1 (de) * 1992-05-02 1993-11-04 Bosch Gmbh Robert Kraftstoffeinspritzduese fuer vor- und haupteinspritzung
DE4432686C2 (de) * 1994-09-14 1996-09-05 Man B & W Diesel Ag Querschnittgesteuerte Einspritzdüse
US5899389A (en) * 1997-06-02 1999-05-04 Cummins Engine Company, Inc. Two stage fuel injector nozzle assembly
EP0972932A1 (fr) * 1998-07-16 2000-01-19 MaK Motoren GmbH & Co. KG Soupape d'injection pour moteurs à combustion interne
DE19913286A1 (de) * 1999-03-24 2000-10-12 Man B & W Diesel Ag Einspritzventil

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Publication number Publication date
EP1339966A1 (fr) 2003-09-03
CZ20031313A3 (cs) 2004-09-15
CZ298453B6 (cs) 2007-10-10
DE10058153A1 (de) 2002-06-06
WO2002042631A1 (fr) 2002-05-30
DE50110179D1 (de) 2006-07-27
PL355415A1 (en) 2004-04-19

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