EP1151192B1 - Soupape d'injection de carburant pour moteurs a combustion interne - Google Patents

Soupape d'injection de carburant pour moteurs a combustion interne Download PDF

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Publication number
EP1151192B1
EP1151192B1 EP00987188A EP00987188A EP1151192B1 EP 1151192 B1 EP1151192 B1 EP 1151192B1 EP 00987188 A EP00987188 A EP 00987188A EP 00987188 A EP00987188 A EP 00987188A EP 1151192 B1 EP1151192 B1 EP 1151192B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
control
valve member
stroke
face
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
EP00987188A
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German (de)
English (en)
Other versions
EP1151192A1 (fr
Inventor
Horst Harndorf
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1151192A1 publication Critical patent/EP1151192A1/fr
Application granted granted Critical
Publication of EP1151192B1 publication Critical patent/EP1151192B1/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
    • 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
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M61/08—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 the valves opening in direction of fuel flow
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-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
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • 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
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements

Definitions

  • the invention is based on a fuel injection valve for Internal combustion engine according to the preamble of claim 1 out.
  • a fuel injection valve for Internal combustion engine according to the preamble of claim 1 out.
  • Such from DE 196 23 211 A1 known fuel injection valve has a valve body in which in a bore a piston-shaped, against the force of a Closing spring axially movable valve member is arranged. At the combustion chamber end, the valve member goes into a Closing head over, which is guided in the bore. Of the Closing head emerges during the outward opening stroke movement of the valve member from the bore and a formed on the closing head control edge is at least one Injection opening free. It can be provided that several Injection openings are provided which through the control edge be turned on one after the other.
  • the opening stroke is by a arranged in the valve body control piston to a partial stroke limited, whose end face a hydraulic control room limited.
  • the control room is under high with fuel Pressure fillable and can thereby the control piston in the axial Move the direction from a first to a second position, whereby the valve member either the maximum stroke or only a partial lift.
  • a hydraulic adjustable stroke stop has a black and white function, that is, he leaves no gradations between the two Opening strokes too. This limits the ability to control the Fuel injection process, so that further optimization the injection process is difficult.
  • the inward opening Type can it may be desirable to accurately meter a pre-injection amount to have a partial lift available not exhausted in a black and white function, so that one optimal injection rate can be achieved.
  • the fuel injection valve according to the invention for internal combustion engines with the characterizing features of claim 1 has the advantage that between the closing spring and the guided portion of the valve member, a combined hydraulic and piezo-controlled stroke stop is formed, with which the opening stroke of the valve member to any value between the maximum Opening stroke and the partial stroke can be adjusted.
  • a combined hydraulic and piezo-controlled stroke stop is formed, with which the opening stroke of the valve member to any value between the maximum Opening stroke and the partial stroke can be adjusted.
  • the piezo actuator does not have to be energized, which is energetically advantageous.
  • the control piston is designed as a hollow cylinder, is arranged at the combustion chamber remote from the end of the piezo actuator.
  • the valve member does not come to rest directly on the piezo actuator during the opening stroke movement, but rather with the interposition of an intermediate disk. This results in less wear on the piezo actuator and thus longer life of the hydraulic stroke stop.
  • the washer offers the ability to adjust the maximum opening stroke on the thickness of this simple and thus inexpensive to produce intermediate disc by replacing.
  • the control pressure for controlling the hydraulic stroke stop is taken from a control line which is connected to a high-pressure reservoir via a control valve.
  • the control line is also connected via a further control valve with the largely pressureless fuel reservoir tank, so that via a suitable control of the two valves, a load and unload the control line is possible without a further high-pressure fuel source is needed.
  • FIG. 1 shows a fuel injection valve for internal combustion engines the outwardly opening design.
  • Valve body 1 which may be constructed in several parts, is a Bore 2 formed in a piston-shaped, opposite the force of a closing spring 21 axially movable valve member 5 is arranged.
  • the valve member 5 is in an in Figure 1 shown above, brennraumabgewandten section of Bore 2 out, while the combustion chamber facing section of the valve member 5, in Figure 1 below, from a pressure chamber 11 is surrounded, which is formed over a valve body 1 in the Inlet channel 3 can be connected to a high-pressure fuel source is.
  • the valve member 5 is the combustion chamber side in one enlarged in diameter closing head 10 over, in a in the larger diameter portion of the bore 2 out is.
  • FIG 2 is an enlarged view of the closing head 10 and the surrounding valve body 1.
  • On the outside wall of the closing head 10 are two rows of injection openings 13a and 13b arranged, with a row all Includes injection holes at the same height of the closing head are arranged.
  • the injection openings 13a and 13b are via injection channels 12 formed in the closing head 10 are connected to the pressure chamber 11.
  • the fuel injection valve comes on the closing head 10 trained valve sealing surface 15 at the valve seat as a surface 17 formed end face of the valve body. 1 to the plant and the injection ports 13a, 13b are from Covered valve body 1.
  • a pressure shoulder 18 formed the fuel pressure in the pressure chamber 11 is suspended.
  • more than two rows of axially offset from each other injection openings 13a, 13b on the outer surface of the Closing head 10 are arranged.
  • the closing head 10 only a series of injection openings 13a, 13b is provided, whose cross section in the opening stroke of the valve member 5 all or only partially opened.
  • the valve member 5 is at its end remote from the combustion chamber in a spring plunger 24 via, which is up in a brennraumabgewandten Area of the valve body 1 formed spring chamber 20 sticks out.
  • a spring plate 23 is formed, at which the Closing spring 21 is supported with its combustion chamber opposite end.
  • the spring chamber 20 is a in the valve body. 1 trained and not shown in the drawing flow channel connected to a drain line to the in the Spring chamber 20 to dissipate penetrating leak oil.
  • FIG. 3 shows an enlarged view of the adjustable Stroke stop of figure 1.
  • the valve member 5 and the spring chamber 20 is an im Diameter larger guide bore 6 is formed.
  • the Guide bore 6 is connected to the valve body 1
  • Control stop 31 arranged and an axially in the guide bore 6 movable control piston 30.
  • the control stop 31 is at the spring chamber 20 far end of the guide hole 6 arranged and formed as a hollow cylinder whose inner diameter Tiered is formed, the section with the larger inner diameter facing the spring chamber 20 is.
  • the control piston 30 is likewise designed as a hollow cylinder, wherein this formed stepped in the outer diameter is and the outer diameter smaller section of the Feather chamber 20 faces away.
  • the smaller in outer diameter Section of the control piston 30 dips into the inside diameter larger portion of the control stop 31, wherein between the control piston 30 and the control stop 31 a Throttle gap 45 is formed.
  • the on the control piston 30 combustion chamber side formed by the stepped outer diameter outer annular end face 35 on the one hand and the control stop 31 on the other hand limit a control room 33, too a trained in the valve body 1 control channel 34th leads.
  • About the throttle gap 45 can only little fuel from the control chamber 33 on the valve member 5 over into the spring chamber 20 drain.
  • the control piston 30 is in two parts constructed, wherein the spring chamber 20 facing, hollow cylindrical Section is designed as a piezoelectric actuator 26 and the other part a stepped trained hydraulic piston 27 forms.
  • the spring chamber 20 is facing the piezoelectric actuator 26, a support disk 25 arranged facing the spring chamber 20 End face is designed as Hubanschlag formula 42, the at the directed to the spring chamber 20 stroke movement of the Control piston 30 at one by the cross-sectional reduction from the guide bore 6 to the spring chamber 20 formed control piston stop 43 comes to the plant.
  • a Federabstützring 22 is arranged, on which the closing spring 21 is supported with its combustion chamber end side.
  • the spring support ring 22 is guided in the spring chamber 20 and is by the force of the closing spring 21 against the support disk 25 pressed.
  • FIG. 4 shows the structure of the high-pressure fuel supply shown schematically.
  • Fuel is via a low pressure line 51 of a high-pressure fuel pump 52 supplied.
  • the high-pressure fuel pump 52 pumps fuel under high pressure High pressure line 53 in a high-pressure accumulator 55.
  • a fuel supply line 60 goes from the high-pressure storage space 55 from the fuel injection valve 101 to the inlet channel 3 is connected.
  • a metering valve 67 arranged with the connection from the high-pressure reservoir 55 to Inlet channel 3 can be opened or closed.
  • the High-pressure accumulator 55 is connected via a control valve 57 with a control line 58 connectable.
  • the entire Fuel injection system is controlled by a control unit 65, which contains a calculator, the by the measured values various, not shown in the drawing sensors the high-pressure fuel pump 52, the control valves 61 and 57, the metering 67 and the energization of the piezo actuator 26 controls.
  • FIG. 5 shows a longitudinal section of a fuel injection valve of the inwardly opening type according to the invention.
  • a valve body 80 designed as a blind bore bore 90 is arranged, the bottom surface facing the combustion chamber.
  • a conical valve seat 83 is formed and at least one injection port 92, which connects the bore 90 with the combustion chamber.
  • the valve body 80 is braced by means of a clamping nut 98 with the interposition of an intermediate disc 94 against a valve holding body 96, which may be constructed in several parts.
  • a piston-shaped, against the force of a closing spring 21 longitudinally displaceable valve member 100 is arranged, which is sealingly guided in a brennraumabgewandten portion of the bore 90 and merges toward the combustion chamber to form a pressure shoulder 88 in a smaller diameter section.
  • a valve sealing surface 81 is formed on the valve member 100, which cooperates with the valve seat 83 and thus opens the injection openings 92 by the longitudinal movement of the valve member 100 and closes.
  • the pressure shoulder 88 is arranged in a pressure chamber 11 formed in the valve body 80, which continues to the valve seat 83 into an annular gap surrounding the valve member 100 and can be filled with fuel via an inlet channel 3 formed in the valve body 80.
  • valve member 100 By the hydraulic force on the pressure shoulder 88, the valve member 100 can be moved against the force of the closing spring 21 in the bore 90, so that the injection ports 92 are turned on.
  • the valve member 90 passes into a spring plate 103 and subsequently into a spring tappet 107, both of which are arranged in a spring space 105 formed in the valve holding body 96.
  • the spring chamber 105 is formed stepped in diameter and increases toward the end facing away from the combustion chamber to form a control piston stop surface 43 designed as an annular shoulder.
  • the control piston 30 is arranged facing the combustion chamber to the control stop 31, and between its end facing the combustion chamber and the Spring plate 103 is the spring plunger 107 surrounding Closing spring 21 is arranged, which the valve member 100 with the Valve sealing surface 81 against the valve seat 83 presses.
  • the valve member 100 has a combustion chamber facing away from its end Stop surface 109, which by the opening stroke the valve member 100 away from the combustion chamber on the control piston 30th comes to the plant.
  • control piston 30 is designed as a piezo actuator. This eliminates the compound of preferably made of metal manufactured hydraulic piston 27 and the piezo-actuator 26th Further, it may also be provided that the support plate 25th omitted and the Hubanschlag compounds 42 formed on the piezoelectric actuator 26 is.

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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 (15)

  1. Injecteur de carburant pour des moteurs à combustion interne, dans lequel :
    un corps d'injecteur (1, 80), présente un alésage (2, 90) dans lequel peut coulisser axialement contre une force de fermeture, un organe de soupape (5, 100) en forme de piston qui, sur une partie de sa longueur éloignée de la chambre de combustion, est guidé dans l'alésage (2) et qui, sur une partie allant de la partie guidée à la chambre de combustion, est entouré par une chambre de pression (11) réalisée dans le corps d'injecteur (1, 80),
    la chambre de pression (11) peut être reliée à une source de carburant sous haute pression (55) et dans cette chambre se trouve, agissant dans le sens d'ouverture, un épaulement de pression (18) situé sur l'organe de soupape (5, 100) qui commande, par sa zone d'extrémité située du côté de la chambre de combustion, au moins un orifice d'injection (13a, 13b, 92) qui peut être ouvert sur commande, totalement ou partiellement, par un mouvement d'ouverture de l'organe de soupape (5, 100) contre la force de fermeture, et se trouver ainsi relié à la chambre de pression (11),
    un piston de commande (30), mobile axialement et délimitant la course maximale d'ouverture de l'organe de soupape (5, 100), présente une surface frontale servant de butée de course (42) pour limiter le mouvement d'ouverture de l'organe de soupape (5, 100), tandis que son autre face frontale annulaire (35) délimite une chambre de commande (33) qui peut être reliée à une source de carburant sous haute pression,
    caractérisé en ce que
    le piston de commande (30) est au moins pour une partie constitué par un actionneur piézo-électrique (26).
  2. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    sur l'organe de soupape (5, 100) se trouve une portée de butée (41, 109) qui, lors du mouvement d'ouverture, vient s'appliquer sur la surface de butée de course (42).
  3. Injecteur de carburant selon la revendication 2
    caractérisé en ce que
    le piston de commande (30) est un cylindre creux, coaxial à l'organe de soupape (5, 100) et se déplaçant dans un alésage de guidage (6).
  4. Injecteur de carburant selon la revendication 3
    caractérisé en ce que
    le piston de commande (30) est un piston étagé dont la face frontale située du côté de la portée de butée (41, 109), constitue butée de course (42), tandis que sa face frontale annulaire (35) constituée par la transition de section et éloignée de la surface de butée de course (42), délimite la chambre de commande (33).
  5. Injecteur de carburant selon la revendication 4,
    caractérisé en ce que
    l'actionneur piézo-électrique (26) a la forme d'un cylindre creux coaxial à l'organe de soupape (5, 100).
  6. Injecteur de carburant selon la revendication 5,
    caractérisé en ce que
    le piston de commande (30) est constitué en partie par un actionneur piézo-électrique (26), qui est monté en regard de la portée de butée (41, 109) de l'organe de soupape (5, 100).
  7. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    sur la face frontale du piston de commande (30) située du côté de la portée de butée (41, 109) de l'organe de soupape (5, 100), est montée une rondelle d'appui (25) sur laquelle est réalisée la surface de butée de course (42).
  8. Injecteur de carburant selon la revendication 1,
    caractérisé en ce que
    la force de fermeture est fournie par au moins un ressort de fermeture (21) monté dans une chambre de ressort (20, 105).
  9. Injecteur de carburant selon la revendication 8,
    caractérisé en ce qu'
    à la transition de l'alésage de guidage (6) à la chambre de ressort (20, 105) se trouve une portée de butée de piston de commande (43) ayant la forme d'une portée frontale annulaire qui limite le déplacement axial du piston de commande (30) en direction de la surface de butée (41, 109) réalisée sur l'organe de soupape (5, 100).
  10. Injecteur de carburant selon une des revendications précédentes,
    caractérisé en ce que
    l'organe de soupape (5), pour commander les orifices d'injection (13a, 13b), effectue une course d'ouverture vers l'extérieur, en direction de la chambre de combustion.
  11. Injecteur de carburant selon la revendication 10,
    caractérisé en ce que
    l'organe de soupape (5) présente un collet annulaire (40) dont la face frontale annulaire située du côté de la chambre de combustion constitue une portée de butée (41) coopérant avec la surface de butée de course (42) du piston de commande (30).
  12. Injecteur de carburant selon la revendication 11,
    caractérisé en ce qu'
    le ressort de fermeture (20) est appliqué au moins indirectement sur la face frontale, éloignée de la chambre de combustion, du piston de commande (30), de sorte que le ressort de fermeture (21) s'oppose au déplacement du piston de commande (30).
  13. Injecteur de carburant selon une des revendications précédentes,
    caractérisé en ce que
    une soupape de commande (57) relie la chambre de commande (33) à la source de carburant sous haute pression (55).
  14. Injecteur de carburant selon la revendication 13,
    caractérisé en ce que
    une soupape de commande (61) relie la chambre de commande (33) à une chambre de décharge (50).
  15. Injecteur de carburant selon la revendication 13,
    caractérisé en ce que
    la source de carburant sous haute pression est constituée par un réservoir sous haute pression (55).
EP00987188A 1999-11-25 2000-11-24 Soupape d'injection de carburant pour moteurs a combustion interne Expired - Lifetime EP1151192B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19956510A DE19956510A1 (de) 1999-11-25 1999-11-25 Kraftstoffeinspritzventil für Brennkraftmaschinen
DE19956510 1999-11-25
PCT/DE2000/004184 WO2001038724A1 (fr) 1999-11-25 2000-11-24 Soupape d'injection de carburant pour moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP1151192A1 EP1151192A1 (fr) 2001-11-07
EP1151192B1 true EP1151192B1 (fr) 2005-08-10

Family

ID=7930156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00987188A Expired - Lifetime EP1151192B1 (fr) 1999-11-25 2000-11-24 Soupape d'injection de carburant pour moteurs a combustion interne

Country Status (7)

Country Link
US (1) US6732949B1 (fr)
EP (1) EP1151192B1 (fr)
JP (1) JP2003515050A (fr)
KR (1) KR20010093273A (fr)
CZ (1) CZ295596B6 (fr)
DE (2) DE19956510A1 (fr)
WO (1) WO2001038724A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3815261B2 (ja) 2001-06-08 2006-08-30 トヨタ自動車株式会社 内燃機関の始動制御装置
DE10259799A1 (de) * 2002-12-19 2004-07-29 Robert Bosch Gmbh Brennstoffeinspritzventil
JP4362339B2 (ja) 2003-09-16 2009-11-11 日立オムロンターミナルソリューションズ株式会社 紙幣取扱装置
DE102004062006A1 (de) * 2004-12-23 2006-07-13 Robert Bosch Gmbh Kraftstoffinjektor mit direkt angesteuertem Einspritzventilglied
ITBO20050295A1 (it) * 2005-04-29 2006-10-30 Magneti Marelli Powertrain Spa Inietore di carburante con attuatore elettromagnetico
JP4412241B2 (ja) * 2005-06-15 2010-02-10 株式会社デンソー 燃料噴射弁
ATE352714T1 (de) * 2005-06-17 2007-02-15 Magneti Marelli Powertrain Spa Brennstoffeinspritzventil
US7472844B2 (en) * 2005-12-21 2009-01-06 Caterpillar Inc. Fuel injector nozzle with tip alignment apparatus
US20110284085A1 (en) * 2010-05-18 2011-11-24 Mindray Medical Sweden Ab Valve and method for flow control
US20110284005A1 (en) * 2010-05-18 2011-11-24 Mindray Medical Sweden Ab Valve and method for flow control
JP6277941B2 (ja) * 2014-11-05 2018-02-14 株式会社デンソー 燃料噴射装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332124A1 (de) * 1993-09-22 1995-03-23 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
DE19500706C2 (de) * 1995-01-12 2003-09-25 Bosch Gmbh Robert Zumeßventil zur Dosierung von Flüssigkeiten oder Gasen
DE19623211A1 (de) * 1996-06-11 1997-12-18 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE19729843A1 (de) 1997-07-11 1999-01-14 Bosch Gmbh Robert Kraftstoffeinspritzventil
DE19843570A1 (de) * 1998-09-23 2000-03-30 Bosch Gmbh Robert Brennstoffeinspritzventil

Also Published As

Publication number Publication date
EP1151192A1 (fr) 2001-11-07
WO2001038724A1 (fr) 2001-05-31
CZ20012677A3 (cs) 2002-11-13
DE50010922D1 (de) 2005-09-15
KR20010093273A (ko) 2001-10-27
CZ295596B6 (cs) 2005-08-17
JP2003515050A (ja) 2003-04-22
US6732949B1 (en) 2004-05-11
DE19956510A1 (de) 2001-05-31

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