EP1778968B1 - Dispositif permettant l'injection de carburant dans la chambre de combustion d'un moteur a combustion interne - Google Patents

Dispositif permettant l'injection de carburant dans la chambre de combustion d'un moteur a combustion interne Download PDF

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Publication number
EP1778968B1
EP1778968B1 EP05763058A EP05763058A EP1778968B1 EP 1778968 B1 EP1778968 B1 EP 1778968B1 EP 05763058 A EP05763058 A EP 05763058A EP 05763058 A EP05763058 A EP 05763058A EP 1778968 B1 EP1778968 B1 EP 1778968B1
Authority
EP
European Patent Office
Prior art keywords
valve
control
control chamber
chamber
valve seat
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
EP05763058A
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German (de)
English (en)
Other versions
EP1778968A1 (fr
Inventor
Jaroslaw Hlousek
Bernd KÖGLER
Joachim Lackner
Helmut Giessauf
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 EP1778968A1 publication Critical patent/EP1778968A1/fr
Application granted granted Critical
Publication of EP1778968B1 publication Critical patent/EP1778968B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials
    • 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
    • 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

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 nozzle needle in the injector nozzle, which can be acted upon in the axial direction in order to control its opening and closing movement by the pressure prevailing in a fuel-filled control chamber.
  • the control chamber communicates with a supply line and a discharge and in at least one of the two lines, a solenoid control valve is turned on, in which an actuator against a valve seat compressible valve closure member is coupled and the actuator is separated by a bellows seal from the closing member and the valve seat ,
  • injectors devices are often used for Commonrailsysteme 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 guided with a shaft longitudinally displaceable in a nozzle body.
  • 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 formed, for example, as a solenoid valve, releases a leading away from the control room derivative, so that the fuel pressure in the control chamber decreases, whereupon the nozzle needle against the force of the spring on the other side pending fuel pressure is lifted from its seat and thus releases the passage of fuel to the injection ports.
  • 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.
  • the use of heavy fuel oil creates a number of difficulties with conventional injectors. 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.
  • a training has become known in which the actuator is separated by a bellows seal from the closing member and the valve seat.
  • a bellows seal succeeds a structural separation of the valve into two separate areas, namely in a control area surrounded and traversed by heavy fuel oil and in an area that can be cooled and lubricated by engine oil, ie an oil that has a negligible amount of impurities and a lower temperature compared to heavy fuel oil.
  • the valve closing member and the valve seat are arranged, so that the area exposed to the impurities and the high temperatures of the heavy oil is reduced.
  • the remaining portion of the valve, in which in particular the actuator, the guide for the actuator and the piezoelectric actuator are does not come into contact with the heavy oil, so that the wear of these parts is reduced.
  • the present invention now aims to overcome the disadvantages associated with the use of heavy oil, also in the area of the valve closure member and the valve seat, and to make the injector as a whole suitable for operation with heavy oil.
  • the invention consists essentially in that the valve closure member is designed as a valve ball and can be pressed against a conical valve seat.
  • the valve closure member is designed as a valve ball and can be pressed against a conical valve seat.
  • Such a design ensures on the one hand that a tight closure of the valve is guaranteed even if the valve closing member or the valve seat are slightly damaged by the impurities present in heavy oil, and on the other hand, that at an inadmissibly high wear of the valve closure member replacement in the same simple way is possible.
  • the embodiment of the invention is to be described as particularly resistant to wear and it may in the event of wear or malfunction occurring the valve ball and, if necessary, the valve seat-bearing intermediate plate are exchanged in a simple manner without affecting other parts of the control valve.
  • the actuator in order to achieve improvements in the area of the actuator improvements in terms of suitability for use of heavy oil is advantageously formed the actuator as connected to the armature of the solenoid control valve pressure pin, whereby a reliable operation of the control valve is ensured.
  • the design is such that the bellows seal between an annular upper, the actuator surrounding bellows plate and a lower bellows plate is arranged, wherein the lower bellows plate with a valve ball bearing plate, in particular ball plate is connected, and the upper bellows plate on the valve body is attached, wherein the bellows seal may be formed as a metallic bellows.
  • the attachment of the bellows seal on the upper and on the lower bellows plate takes place here in a sealing manner, for example by welding or gluing.
  • the reliable separation of the two areas of the control valve causes the bellows seal due to their spring action also a reliable Andrückung between the actuator and the lower bellows plate.
  • this training is developed such that the control chamber is limited on its side facing the control valve by an intermediate plate, that the derivative of the control chamber is formed as an axial bore in the intermediate plate and that the intermediate plate at the control valve facing the mouth of the derivative Valve seat carries. It is thus provided an intermediate plate between the control chamber and the control valve, wherein in the intermediate plate both the derivative of the control chamber and the valve seats of the control valve is arranged so that a structurally simple structure is formed in which the intermediate plate is formed as a wear part, which in Case that the valve seat has signs of wear, can be replaced. In order to reduce wear, it is preferably provided that the valve ball and the intermediate plate comprising the valve seat are made of wear-resistant hard metal are formed.
  • valve seat having intermediate plate is formed of wear-resistant ceramic.
  • the arrangement of the derivative of the control chamber and the valve seat in the intermediate plate also allows an axially aligned arrangement of these two components, which are associated with fluidic advantages.
  • the training is in this case made such that the longitudinal axis of the derivative coincides with the longitudinal axis of the injector nozzle.
  • the invention is preferably further developed such that the supply line to the control chamber is guided over at least one bore of the nozzle needle.
  • the supply line to the control chamber is not arranged in the intermediate plate, as in the prior art, but via a bore of the nozzle needle, the observed when using heavy oil heat generation is kept away from the area of the magnetic control valve and moved into the region of the nozzle needle , which in any case is in contact with the heated heavy oil.
  • the bore of the nozzle needle, through which the supply line is guided to the control chamber is in this case via an inlet throttle with the nozzle front chamber in connection, resulting in a series of optimization possibilities for the control of the opening and closing movement of the nozzle needle.
  • 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 lock nut 6.
  • the injector nozzle 5 comprises a nozzle needle 7, which is guided longitudinally displaceably in the nozzle body of the injector nozzle 5 and has a plurality of free surfaces through which the nozzle antechamber 8 Fuel can flow to the needle tip.
  • the fuel is injected via a plurality of injection openings 9 in 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 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.

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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 (9)

  1. Dispositif pour injecter du carburant dans la chambre de combustion d'une machine 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 peut être soumise dans le sens axial à la pression régnant dans une chambre de commande (12) remplie de carburant pour contrôler son mouvement d'ouverture et de fermeture, la chambre de commande (12) étant en communication avec un conduit d'amenée (14) et un conduit d'évacuation (19) et une soupape de commande (16) étant insérée dans au moins un des deux conduits et à laquelle un membre de fermeture de soupape (25) qui peut être pressé contre un siège de soupape (26) est couplé avec membre d'actionnement (21) et le membre d'actionnement (21) étant séparé du membre de fermeture (25) et du siège de soupape (26) par un joint d'étanchéité à soufflet (28), caractérisé en ce que la soupape de commande (16) est une soupape de commande à champ magnétique et en ce que le membre de fermeture de soupape est configuré comme une bille de soupape (25) et peut être pressé contre un siège de soupape (26) conique.
  2. Dispositif selon la revendication 1, caractérisé en ce que le membre d'actionnement est configuré comme un boulon de pression (21) relié au bobinage (17) de la soupape de commande (16) à champ magnétique.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le joint d'étanchéité à soufflet (28) est disposé entre une plaque de soufflet annulaire supérieure (29) entourant le membre d'actionnement (21) et une plaque de soufflet inférieure (23), la plaque de soufflet inférieure (23) étant relié à une plaque à bille (24) portant la bille de soupape (25) et la plaque de soufflet supérieure (29) étant fixée au corps de soupape (3).
  4. Dispositif selon la revendication 1, 2 ou 3, caractérisé en ce que la chambre de commande (12) est limitée sur son côté orienté vers la soupape de commande (16) par une plaque intermédiaire (4) et en ce que le conduit d'évacuation (19) de la chambre de commande (12) est configuré comme un orifice axial dans la plaque intermédiaire (4) et en ce que la plaque intermédiaire (4) porte le siège de soupape (26) au niveau de l'embouchure du conduit d'évacuation (19) orientée vers la soupape de commande (16).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'axe longitudinal du conduit d'évacuation (19) coïncide avec l'axe longitudinal de la buse d'injection (5).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la bille de soupape (25) et la plaque intermédiaire (4) présentant le siège de soupape (26) sont réalisées en métal dur résistant à l'usure.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la plaque intermédiaire (4) présentant le siège de soupape (26) est réalisée en céramique résistant à l'usure.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que le conduit d'amenée (14) vers la chambre de commande (12) est guidé par au moins un alésage de l'aiguille d'injection (7).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la chambre de commande (12) est limitée sur son côté opposé à la soupape de commande (16) par la face frontale de l'aiguille d'injection (7) et le conduit d'amenée (14) vers la chambre de commande (12) est configuré comme un alésage axial dans l'aiguille d'injection (7), la liaison avec la préchambre de la buse (8) se faisant par un restricteur d'entrée (15).
EP05763058A 2004-08-06 2005-07-29 Dispositif permettant l'injection de carburant dans la chambre de combustion d'un moteur a combustion interne Not-in-force EP1778968B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0135204A AT500889B8 (de) 2004-08-06 2004-08-06 Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
PCT/AT2005/000301 WO2006012658A1 (fr) 2004-08-06 2005-07-29 Dispositif permettant l'injection de carburant dans la chambre de combustion d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1778968A1 EP1778968A1 (fr) 2007-05-02
EP1778968B1 true EP1778968B1 (fr) 2008-02-06

Family

ID=34972904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05763058A Not-in-force EP1778968B1 (fr) 2004-08-06 2005-07-29 Dispositif permettant l'injection de carburant dans la chambre de combustion d'un moteur a combustion interne

Country Status (8)

Country Link
US (1) US20090205614A1 (fr)
EP (1) EP1778968B1 (fr)
JP (1) JP2008509310A (fr)
KR (1) KR100822955B1 (fr)
CN (1) CN100460663C (fr)
AT (2) AT500889B8 (fr)
DE (1) DE502005002772D1 (fr)
WO (1) WO2006012658A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009070A1 (de) * 2006-02-28 2007-08-30 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102006047294A1 (de) * 2006-10-06 2008-04-24 Man Diesel Se Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE102006057025A1 (de) * 2006-12-04 2008-06-05 Robert Bosch Gmbh Magnetventil mit Kugelsitz
US7770818B2 (en) 2007-02-08 2010-08-10 Denso Corporation Fuel injection valve
DE102008005532A1 (de) * 2008-01-22 2009-07-23 Robert Bosch Gmbh Kraftstoffinjektor, dessen Steuerventilelement einen Stützbereich aufweist
EP2246554B1 (fr) * 2009-04-20 2012-06-27 Continental Automotive GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection
DE102009032305A1 (de) * 2009-07-09 2011-01-13 Man Diesel & Turbo Se Kraftstoffversorgungsanlage einer Brennkraftmaschine
DE102010043092A1 (de) * 2010-10-29 2012-05-03 Robert Bosch Gmbh Druckregelventil
DE102011079468A1 (de) * 2011-07-20 2013-01-24 Continental Automotive Gmbh Piezoinjektor
WO2013162576A1 (fr) * 2012-04-26 2013-10-31 International Engine Intellectual Property Company, Llc Appareil de régulation de fuite d'aiguille d'injection
DE102012212614A1 (de) 2012-07-18 2014-01-23 Continental Automotive Gmbh Piezoinjektor mit hydraulisch gekoppelter Düsennadelbewegung
DE102012222509A1 (de) 2012-12-07 2014-06-12 Continental Automotive Gmbh Piezoinjektor
DE102012223934B4 (de) 2012-12-20 2015-10-15 Continental Automotive Gmbh Piezoinjektor
CN104100425B (zh) * 2014-07-23 2016-07-06 哈尔滨工程大学 船用重油柴油机电控共轨喷油器
CN104234900A (zh) * 2014-09-09 2014-12-24 浙江展途动力科技有限公司 喷孔轴针混合式直驱喷油器
EP3230580B1 (fr) 2014-12-11 2019-05-08 Delphi Technologies IP Limited Ensemble de vanne de régulation
CN105888904B (zh) * 2016-05-19 2018-05-18 哈尔滨工程大学 非晶合金复合铁芯电磁控制喷油器
CN108397326B (zh) * 2018-01-23 2020-07-17 中国第一汽车股份有限公司 一种减少泄漏的共轨喷油器
CN110374547B (zh) * 2019-06-12 2021-05-18 中国石油化工股份有限公司 一种投球器及使用该投球器的稠油注采一体化管柱
CN114602944A (zh) * 2022-03-09 2022-06-10 吴志英 一种医疗耗材用具有防污染结构的处理装置

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726389A (en) * 1986-12-11 1988-02-23 Aisan Kogyo Kabushiki Kaisha Method of controlling injector valve
JPS648328A (en) * 1987-06-27 1989-01-12 Nippon Denso Co Idling control solenoid valve of engine
JPH08165968A (ja) * 1994-12-14 1996-06-25 Aisin Seiki Co Ltd 直噴エンジンの燃料噴射弁
IT1276503B1 (it) * 1995-07-14 1997-10-31 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagnetico, per un iniettore di combustibile.
JP3719468B2 (ja) 1996-09-02 2005-11-24 株式会社デンソー 蓄圧式燃料噴射装置
IT1289795B1 (it) * 1996-12-23 1998-10-16 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagnetico, con otturatore a sfera, per un iniettore di combustibile.
JP3817826B2 (ja) * 1997-04-18 2006-09-06 日産自動車株式会社 エンジンの燃料噴射弁
JPH11148439A (ja) * 1997-06-26 1999-06-02 Hitachi Ltd 電磁式燃料噴射弁及びその燃料噴射方法
DE19748999C2 (de) * 1997-11-06 2002-11-07 Daimler Chrysler Ag Magnetventilgesteuerter Injektor für ein Speichersystem einer mehrzylindrigen Brennkraftmaschine
DE19821768C2 (de) * 1998-05-14 2000-09-07 Siemens Ag Dosiervorrichtung und Dosierverfahren
DE19827267A1 (de) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Kraftstoff-Einspritzventil für Hochdruck-Einspritzung mit verbesserter Steuerung der Kraftstoffzufuhr
JP3527857B2 (ja) * 1998-12-25 2004-05-17 株式会社日立製作所 燃料噴射装置及び内燃機関
JP3527862B2 (ja) * 1999-04-08 2004-05-17 株式会社日立製作所 燃料噴射装置及び内燃機関
US6142394A (en) * 1999-06-30 2000-11-07 Caterpillar Inc. Valve seat for a ball and pin valve member in a hydraulically actuated fuel injector
DE19936667A1 (de) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common-Rail-Injektor
DE19937559A1 (de) * 1999-08-09 2001-03-01 Bosch Gmbh Robert Zweistufiges Magnetventil in kompakter Bauweise für einen Injektor eines Einspritzsystems für Brennkraftmaschinen
DE19954802A1 (de) * 1999-11-13 2001-05-17 Bosch Gmbh Robert Brennstoffeinspritzventil
US6328232B1 (en) * 2000-01-19 2001-12-11 Delphi Technologies, Inc. Fuel injector spring force calibration tube with internally mounted fuel inlet filter
US6715693B1 (en) * 2000-02-15 2004-04-06 Caterpillar Inc Thin film coating for fuel injector components
DE10026642A1 (de) * 2000-05-29 2001-12-13 Siemens Ag Einspritzventil mit einem Zulaufventil zu einer Arbeitskammer
DE10031582A1 (de) * 2000-06-29 2002-01-17 Bosch Gmbh Robert Druckgesteuerter Injektor mit gesteuerter Düsennadel
DE10046416C2 (de) * 2000-09-18 2002-11-07 Orange Gmbh Ventilausbildung für Steuerventile
JP2002202022A (ja) * 2000-10-30 2002-07-19 Denso Corp バルブ駆動装置および燃料噴射弁
DE10212002C1 (de) * 2002-03-18 2003-08-21 Orange Gmbh Einspritzinjektor für Brennkraftmaschinen
EP1347168B1 (fr) * 2002-03-18 2006-03-29 L'orange Gmbh Injecteur pour moteurs à combustion interne
JP3790991B2 (ja) * 2002-08-15 2006-06-28 ボッシュ株式会社 燃料噴射弁におけるアーマチュアの製造方法
DE10237585A1 (de) * 2002-08-16 2004-02-26 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
US7124744B2 (en) * 2003-07-31 2006-10-24 Caterpillar Inc. Variable control orifice member and fuel injector using same
JP4196895B2 (ja) * 2004-07-12 2008-12-17 株式会社デンソー 燃料噴射装置

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ATE385542T1 (de) 2008-02-15
DE502005002772D1 (de) 2008-03-20
US20090205614A1 (en) 2009-08-20
KR100822955B1 (ko) 2008-04-16
AT500889A1 (de) 2006-04-15
KR20070046890A (ko) 2007-05-03
AT500889B8 (de) 2007-02-15
AT500889B1 (de) 2006-09-15
WO2006012658A1 (fr) 2006-02-09
JP2008509310A (ja) 2008-03-27
EP1778968A1 (fr) 2007-05-02
CN101035979A (zh) 2007-09-12
CN100460663C (zh) 2009-02-11

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