EP1774166B1 - Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur a combustion interne - Google Patents

Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur a combustion interne Download PDF

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Publication number
EP1774166B1
EP1774166B1 EP05769080A EP05769080A EP1774166B1 EP 1774166 B1 EP1774166 B1 EP 1774166B1 EP 05769080 A EP05769080 A EP 05769080A EP 05769080 A EP05769080 A EP 05769080A EP 1774166 B1 EP1774166 B1 EP 1774166B1
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EP
European Patent Office
Prior art keywords
nozzle needle
nozzle
throttle
bore
control chamber
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.)
Not-in-force
Application number
EP05769080A
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German (de)
English (en)
Other versions
EP1774166A1 (fr
Inventor
Jaroslav Hlousek
Franz Guggenbichler
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 EP1774166A1 publication Critical patent/EP1774166A1/fr
Application granted granted Critical
Publication of EP1774166B1 publication Critical patent/EP1774166B1/fr
Not-in-force 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
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively

Definitions

  • the invention relates to a device for injecting fuel into the combustion chamber of an internal combustion engine with an injector nozzle and a longitudinally displaceable in the injector nozzle needle, which is at least partially surrounded by a nozzle vestibule and to control their opening and closing movement of the in a fuel-filled control chamber prevailing pressure in the axial direction can be acted upon, wherein in the control chamber opens a lead and leads away from the control chamber a derivative, in which a solenoid control valve is turned on, wherein the supply line is guided to the control chamber via at least one bore of the nozzle needle, which via an inlet throttle with the nozzle antechamber communicates.
  • Such a device is for example from the EP 921301 B1 and the US 2002/125339 A1 known.
  • injectors devices are often used for common rail systems for injecting diesel fuel into the combustion chamber of diesel engines and are usually designed so that the opening and closing of the injection cross sections through a nozzle needle which is longitudinally displaceable with a shaft in a nozzle body is guided.
  • the control of the movement of the nozzle needle is carried out via a solenoid valve.
  • the nozzle needle is acted upon on both sides with the fuel pressure and by a pressure spring acting in the closing direction.
  • a control chamber is provided, in which fuel under pressure, the nozzle needle is acted upon in the closing direction and thus presses the nozzle needle on the needle seat or the valve seat.
  • the control valve which may be designed, for example, as a solenoid valve, releases a discharge leading away from the control chamber, so that the fuel pressure in the control chamber drops, whereupon the nozzle needle, against the force of the spring, is lifted from its seat by the fuel pressure impinging on the other side and in this way releases the passage of fuel to the injection openings.
  • the opening speed of the nozzle needle is determined by the difference between the flow in the supply line to the control chamber and the flow in the derivative of the control chamber, both in the supply and in the discharge of a throttle is turned on, which determines the flow respectively.
  • both the supply line to the control chamber and the discharge from the control chamber in an upper surface of the control chamber defining intermediate plate is formed and thus arranged in close proximity to the solenoid control valve.
  • Heavy oils have a high viscosity, wherein heating to up to 150 ° C is necessary to lower the viscosity. This has the consequence that the injector is heated beyond the usual extent, which leads to problems, in particular in the region of the solenoid valve.
  • due to the arrangement of the supply line to the control room and the discharge from the control room in the immediate vicinity of the solenoid valve there is a high heating and thus endangering or even destruction of this device.
  • a similar arrangement of the inlet throttle is also from the EP 1088985 A1 known.
  • a further inlet throttle is provided in the nozzle needle. The operation is such that the central inlet throttle when opening the nozzle needle is suddenly closed and thus ineffective. At the beginning of the closing movement of the nozzle needle only the inlet throttle is effective and the closing movement of the nozzle needle begins slowly until the radial inflow to the inlet throttle over a sufficient cross-section is possible and thus a rapid needle closure.
  • the present invention now aims to arrange, in addition to the solution of the problems associated with the use of heavy oil, the supply line to the control room in such a way that a particularly simple construction can be realized and the control of the opening and closing movement of the nozzle needle can be optimized.
  • the invention provides that a further inlet throttle is provided between the control chamber and the nozzle antechamber whose passage cross section is variable and / or lockable during the passage of at least a partial lift of the nozzle needle in response to the stroke of the nozzle needle, preferably wherein the further inlet throttle at Run through at least a partial stroke of the nozzle needle open and outside this at least a partial stroke is closed.
  • a continuous influencing of the passage cross-section of the further inlet throttle can be made at least during the passage of a partial stroke, so that the further inlet throttle is opened when passing through at least one partial stroke of the nozzle needle and is closed outside this at least one partial stroke.
  • the influencing of the opening or closing movement of the nozzle needle can hiebei be made in various ways, wherein it is preferably provided that the further inlet throttle is opened starting from the open position of the nozzle needle over a partial stroke. This means that the inlet throttle is initially closed, starting from its closed position over a first partial stroke and is open over a further partial stroke up to the open position.
  • An inverted configuration in which the needle opening initially takes place slowly and subsequently accelerates can also bring advantages for a number of purposes, as will be described below with reference to an exemplary embodiment.
  • the training is developed such that the nozzle needle is guided in a control sleeve and the other Inlet throttle is formed by an opening into the bore of the nozzle needle throttle bore and an inlet bore in the control sleeve, wherein the throttle bore and the inlet bore when passing through a partial stroke of the nozzle needle cover, which is additionally provided that the inlet bore into an annular groove on the inner circumference of the control sleeve opens and in cover with an associated with the throttle bore annular groove on the outer circumference of the nozzle needle can be brought.
  • a release or a conclusion of the further inlet throttle is developed such that the nozzle needle is guided in a control sleeve and the other Inlet throttle is formed by an opening into the bore of the nozzle needle throttle bore and an inlet bore in the control sleeve, wherein the throttle bore and the inlet bore when passing through a partial stroke of the nozzle needle cover, which is additionally provided that the inlet bore into an annular groove on the inner circumference of the control slee
  • control sleeve having an inlet bore, which can be brought into coincidence with the throttle bore, or it can cooperate directly with the lower edge of the control sleeve, the throttle bore.
  • the design is such that the throttle bore opens into an annular groove on the outer circumference of the nozzle needle, which annular groove is closed after passing through a first partial stroke of the lower edge of the control sleeve.
  • FIG. 1 shows a cross section through an injector
  • FIG. 2 shows a partial cross section in an enlarged view of the lower part of the injector in a modified embodiment
  • FIG. 3 shows the course of the needle stroke as a function of time in an embodiment according to FIG. 4 shows a further modified embodiment of the injector
  • FIG. 5 shows the course of the needle stroke as a function of time according to the embodiment according to FIG. 4.
  • Fig. 1 shows the structure of an injector for a common rail injection system of large diesel engines.
  • the injector 1 comprises an injector body 2, a valve body 3, an intermediate plate 4 and an injector nozzle 5, which are held together by a nozzle retaining nut 6.
  • the injector nozzle 5 includes a nozzle needle 7, which in the nozzle body of the injector 5 is guided longitudinally displaceable and has a plurality of open spaces through which 8 fuel can flow from the nozzle front chamber to the needle tip. During the opening movement of the nozzle needle 7, the fuel is injected via a plurality of injection openings 9 into the combustion chamber of the internal combustion engine.
  • the control sleeve 11, the upper end face of the nozzle needle 7 and the underside of the intermediate plate 4 define a control chamber 12.
  • the pressure prevailing in the control chamber 12 pressure is decisive for the control of the movement of the nozzle needle.
  • the fuel pressure on the one hand in the nozzle front chamber 8 is effective where it exerts a force in the opening direction of the nozzle needle 7 via the pressure shoulder of the nozzle needle 7.
  • it acts on the bore 14 and the inlet throttle 15 in the control chamber 12 and holds, supported by the force of the compression spring 10, the nozzle needle 7 in its closed position.
  • the magnet armature 17 of the solenoid valve is pressed in the closed position of the injector by the compression spring 22 down and presses on the pressure pin 21, the lower bellows plate 23 and the ball plate 24, the valve ball 25 in the conical seat 26 which is arranged in the intermediate plate 4.
  • the upper bellows plate 29 is mounted on a dial 30 close to the valve body 3.
  • the metallic bellows 28 is sealingly secured by welding or gluing to upper 29 and lower bellows plate 23 and seals on the one hand between the solenoid valve chamber 31 and drainage chamber 32, on the other hand causes a reliable pressing between the pressure pin 21 and lower bellows plate 23rd
  • the armature 17 Upon completion of the actuation of the electromagnet 16, the armature 17 is pressed by the force of the compression spring 22 down and the valve ball 25 closes on the conical seat 26, the drainage path of the fuel through the outlet throttle 20.
  • the fuel pressure is rebuilt in the control chamber 12 and generates a closing force which exceeds the hydraulic force on the pressure shoulder of the nozzle needle 7, reduced by the force of the compression spring 10.
  • the nozzle needle 7 thereby closes the way to the injection openings 9 and terminates the injection process.
  • the inlet throttle 15 is not located in the intermediate plate 4 but is arranged in the nozzle needle 7. Together with the bore 14, it forms a constantly open connection between the nozzle front chamber 8 and the control chamber 12.
  • the advantage of the arrangement of inlet throttle 15 and outlet throttle 20 in different components lies in the easier adaptation to different requirements of engine concepts and more cost-effective replacement occurring wear on one of the two throttle bores.
  • Fig. 2 shows a partial section in the region of the control sleeve 11 and the upper portion of the nozzle needle 7.
  • the nozzle needle 7 has in addition to the inlet throttle 15, a further inlet throttle 35, which opens into an annular groove 36 in the nozzle needle 7, which after passing through a partial stroke 40 of the nozzle needle 7 corresponds to the annular groove 37 in the control sleeve 11 and thus opens an additional connection from the nozzle front chamber 8 to the control chamber 12 via the inlet bore 38 in the control sleeve 11.
  • Fig. 3 shows the effect of this arrangement on the course of the needle stroke. It shows the needle movement over time.
  • the solid line shows the needle movement in an arrangement of FIG. 1, the dotted line in those in the modified arrangement of Fig. 2. Due to the delay of the needle opening, a flatter increase 41 of the needle movement is achieved after covering the partial stroke 40. Also, the striking of the nozzle needle 7 to the intermediate plate 4 is carried out with less impact force. This reduces the wear on the contact surfaces. Another effect of the arrangement is that after the completion of the controlled inlet throttle 35 during the closing process of the nozzle needle 7, the fuel supply to the control chamber 12 takes place only through the opening of the inlet throttle 15 and thus the closing process is slowed down. The effect on the needle movement shows the line of flatter waste 42 in Fig. 3. This results in a gentler touchdown of the nozzle needle 7 on the seat, which also reduces wear at this point.
  • the illustrated needle trajectory with its effect on the course of injection, is desirable in many types of combustion engines, at least not detrimental to others, and substantially extends the useful life of injectors.
  • FIG. 4 shows a further partial section in the region of the control sleeve 11 and of the upper region of the nozzle needle 7.
  • an annular groove is located above the inlet throttle 15 36, connected to a controlled inlet throttle 39, which is closed after passing through a partial stroke 40 through the lower edge of the control sleeve 11.
  • the partial stroke 40 is smaller than the stroke of the nozzle needle 7 from the closed position to the open position.
  • FIG. 5 shows the effect of this arrangement on the needle movement. It comes during the passage of the partial stroke 40 of the nozzle needle 7 to a shallower increase 43 after the start of injection.
  • a slow filling of the control chamber 12 takes place at first only through the inlet throttle 15.
  • a faster filling takes place and the needle closing is accelerated. This causes a steeper drop in the needle movement 44 toward the end of the injection.
  • such a needle stroke pattern with its effect on the course of injection and thus on the combustion process is advantageous for consumption, noise and emissions.
  • An additional advantage of the illustrated arrangements lies in the reduction of the control amount discharged without pressure into the fuel return.

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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 (6)

  1. Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur à combustion interne, comprenant une buse d'injection (5) et une aiguille d'injection (7) guidée de manière longitudinalement coulissante dans la buse d'injection (5), qui est entourée au moins en partie par une chambre d'alimentation (8) de la buse et qui peut être soumise dans le sens axial à la pression régnant dans une chambre de contrôle (12) remplie de carburant pour contrôler son mouvement d'ouverture et de fermeture, un conduit d'amenée débouchant dans la chambre de contrôle (12) et une conduite d'évacuation (19), dans laquelle une électrovanne de contrôle (16) est insérée, la conduite d'évacuation s'éloignant de la chambre de contrôle (12), la conduite d'amenée dans la chambre de contrôle (12) étant guidée par au moins un perçage (14) dans l'aiguille d'injection (7), qui est en communication avec la chambre d'alimentation (8) de la buse par l'intermédiaire d'un restricteur d'entrée (15), caractérisé en ce qu'un restricteur d'entrée supplémentaire (35) est prévu entre la chambre de contrôle (12) et la chambre d'alimentation (8) de la buse dont la section transversale de passage peut être changée et / ou fermée pendant le déroulement d'au moins une course partielle de l'aiguille d'injection (7) en fonction de la course de l'aiguille d'injection (7).
  2. Dispositif selon la revendication 1, caractérisé en ce que le restricteur d'entrée supplémentaire (35) est ouvert pendant le déroulement d'au moins une course partielle (40) de l'aiguille d'injection (7) et est fermé en dehors de cette au moins une course partielle (40).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le restricteur supplémentaire (35) est ouvert en partant de la position ouverte de l'aiguille d'injection (7) pendant une course partielle (40).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que l'aiguille d'injection (7) est guidée dans un manchon de contrôle (11) et le restricteur d'entrée supplémentaire (35) est formé par un perçage de restriction débouchant dans le perçage (14) de l'aiguille d'injection (7) et un perçage d'entrée (38) dans le manchon de contrôle (11), le perçage de restriction et le perçage d'entrée (38) coïncidant lors du déroulement d'une course partielle (40) de l'aiguille d'injection (7).
  5. Dispositif selon la revendication 4, caractérisé en ce que le perçage d'entrée (38) débouche dans une rainure annulaire (37) à la périphérie intérieure du manchon de contrôle (11) et peut être amené à coïncider avec une rainure annulaire (36) à la périphérie extérieure de l'aiguille d'injection (7) qui est en communication avec le perçage de restriction.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que le perçage de restriction débouche dans une rainure annulaire (36) à la périphérie extérieure de l'aiguille d'injection (7), laquelle rainure annulaire (36) est fermée par le rebord inférieur du manchon de contrôle (11) après le déroulement d'une première course partielle (40).
EP05769080A 2004-08-06 2005-08-05 Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur a combustion interne Not-in-force EP1774166B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0135104A AT500774B8 (de) 2004-08-06 2004-08-06 Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
PCT/AT2005/000318 WO2006012665A1 (fr) 2004-08-06 2005-08-05 Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1774166A1 EP1774166A1 (fr) 2007-04-18
EP1774166B1 true EP1774166B1 (fr) 2007-12-19

Family

ID=34973153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05769080A Not-in-force EP1774166B1 (fr) 2004-08-06 2005-08-05 Dispositif pour injecter du carburant dans la chambre de combustion d'un moteur a combustion interne

Country Status (8)

Country Link
US (1) US20080283634A1 (fr)
EP (1) EP1774166B1 (fr)
JP (1) JP4528829B2 (fr)
KR (1) KR100875015B1 (fr)
CN (1) CN1993545B (fr)
AT (2) AT500774B8 (fr)
DE (1) DE502005002312D1 (fr)
WO (1) WO2006012665A1 (fr)

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DE102007025615A1 (de) * 2007-06-01 2008-12-04 Robert Bosch Gmbh Injektor
DE102010043092A1 (de) * 2010-10-29 2012-05-03 Robert Bosch Gmbh Druckregelventil
DE102012207842A1 (de) * 2012-05-10 2013-11-14 Continental Automotive Gmbh Einspritzventil
EP2674608B1 (fr) * 2012-06-13 2015-08-12 Delphi International Operations Luxembourg S.à r.l. Injecteur à carburant
CN103047060A (zh) * 2013-01-10 2013-04-17 无锡开普机械有限公司 电控喷油器的控制喷射阀
EP2829717A1 (fr) * 2013-07-23 2015-01-28 Delphi International Operations Luxembourg S.à r.l. Injecteur de carburant
JP6188140B2 (ja) * 2013-09-04 2017-08-30 株式会社エンプラス 燃料噴射装置用ノズルプレート
CN104265534B (zh) * 2014-08-05 2017-05-03 中国第一汽车股份有限公司无锡油泵油嘴研究所 一种喷油速率可变共轨系统喷油器
CN105952559A (zh) * 2016-05-23 2016-09-21 中国第汽车股份有限公司无锡油泵油嘴研究所 双油路电控喷油器
DE102016220912A1 (de) * 2016-10-25 2018-04-26 Robert Bosch Gmbh Kraftstoffeinspritzventil
CN106593719A (zh) * 2017-01-18 2017-04-26 哈尔滨工程大学 谐振旁通式电控喷油器
DE102021200868A1 (de) 2021-02-01 2022-08-04 Robert Bosch Gesellschaft mit beschränkter Haftung Steuerventil für ein Einspritzventil, Einspritzventil mit Steuerventil
CN116044627B (zh) * 2023-03-24 2023-07-21 哈尔滨工程大学 一种多级升程实现喷油规律可变的微量回油电控喷油器

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CH670682A5 (en) * 1985-12-03 1989-06-30 Marco Alfredo Ganser Internal combustion engine accumulator injection device
US5192026A (en) * 1990-03-29 1993-03-09 Cummins Engine Company, Inc. Fuel injectors and methods for making fuel injectors
US5299919A (en) * 1991-11-01 1994-04-05 Paul Marius A Fuel injector system
GB9725804D0 (en) * 1997-12-06 1998-02-04 Lucas Ind Plc Fuel injector
JP3508537B2 (ja) * 1998-03-12 2004-03-22 トヨタ自動車株式会社 内燃機関の燃料噴射装置
DE19946766C2 (de) * 1999-09-29 2001-07-26 Siemens Ag Injektor für eine Brennkraftmaschine mit Direkteinspritzung
DE10031574B4 (de) * 2000-06-29 2008-12-04 Robert Bosch Gmbh Druckgesteuerter doppelschaltender Hochdruckinjektor
US6557779B2 (en) * 2001-03-02 2003-05-06 Cummins Engine Company, Inc. Variable spray hole fuel injector with dual actuators
EP1486665A4 (fr) * 2002-03-15 2010-09-01 Bosch Automotive Systems Corp Injecteur de combustible
DE10241462A1 (de) * 2002-09-06 2004-03-18 Robert Bosch Gmbh Injektor zur Einspritzung von Kraftstoff in Brennräume von Brennkraftmaschinen, insbesondere servoventilgesteuerter Common-Rail-Injektor

Also Published As

Publication number Publication date
JP2008509311A (ja) 2008-03-27
KR20070059068A (ko) 2007-06-11
JP4528829B2 (ja) 2010-08-25
AT500774A1 (de) 2006-03-15
AT500774B1 (de) 2006-07-15
DE502005002312D1 (de) 2008-01-31
CN1993545A (zh) 2007-07-04
AT500774B8 (de) 2007-02-15
ATE381671T1 (de) 2008-01-15
KR100875015B1 (ko) 2008-12-19
US20080283634A1 (en) 2008-11-20
WO2006012665A1 (fr) 2006-02-09
EP1774166A1 (fr) 2007-04-18
CN1993545B (zh) 2010-06-16

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