WO2003004857A1 - Injecteur de carburant a formation du cours de l'injection - Google Patents

Injecteur de carburant a formation du cours de l'injection Download PDF

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Publication number
WO2003004857A1
WO2003004857A1 PCT/DE2002/002294 DE0202294W WO03004857A1 WO 2003004857 A1 WO2003004857 A1 WO 2003004857A1 DE 0202294 W DE0202294 W DE 0202294W WO 03004857 A1 WO03004857 A1 WO 03004857A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
chamber
valve
control valve
seat
Prior art date
Application number
PCT/DE2002/002294
Other languages
German (de)
English (en)
Inventor
Friedrich Boecking
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
Priority to EP02754256A priority Critical patent/EP1404962A1/fr
Publication of WO2003004857A1 publication Critical patent/WO2003004857A1/fr

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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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0045—Three-way 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
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators

Definitions

  • fuel injection systems are used, the fuel injectors of which are supplied with fuel via the interposition of high-pressure common spaces. Start of injection and injection quantity are set with the electrically controllable injector.
  • the fuel injectors are attached to the cylinder head without having to make any significant modifications to the cylinder head of the internal combustion engine. Depending on the application, whether on passenger cars or commercial vehicles, the injectors used can influence the course of the injection.
  • EP 0 987 432 A2 relates to a fuel injector.
  • This comprises a nozzle needle, which is pressed into its seat via a spring element. The end face of the nozzle needle is acted upon by the fuel pressure in a control chamber, in which fuel flows in via a supply line in which a throttle element is received.
  • a control chamber in which fuel flows in via a supply line in which a throttle element is received.
  • an outlet valve which controls the outlet of the fuel from the supply line into a low-pressure area, and a control valve which releases or closes the connection between the control chamber and the low-pressure area.
  • the drain valve and the control valve are operated via a common electromagnetic actuator.
  • the actuator is housed in a housing that encloses the drain valve and the control valve.
  • the control valve, the drain valve and the actuator are arranged such that in the deactivated state the drain valve and the control valve are in their respective open positions. If the actuator is moved into a first position, which corresponds to a first current level, the drain valve is closed while the control valve remains in its open position. Will the electromagnetic On the other hand, if the actuator continues to be energized and reaches a second, higher current level, the control valve is also closed.
  • the injection is ended by deactivating the actuator, the drain valve initially opening. Since the control valve is still open shortly before the drain valve is opened, the pressure against which the spring element of the nozzle needle works when the nozzle is closed can be reduced, so that faster needle closing can be achieved.
  • EP 0 994 248 A2 relates to a fuel injector with injection course shaping by a piezo actuator.
  • An injection opening is formed on the injector body of the fuel injector.
  • a nozzle needle is movably received in the injector body and can be moved back and forth between a release position of the injection opening and a closed position of the injection opening.
  • a piezoelectric actuator is accommodated in the injector body and can be moved between an active and an inactive position.
  • the nozzle needles and the piezoelectric actuator are connected to one another by means of a coupling element in order to convert the movement of the piezoelectric actuator into a larger movement of the nozzle needle during its stroke in the injector body.
  • DE 197 15 234 AI relates to a solenoid-controlled fuel injection valve for accumulator injection systems of multi-cylinder brake machines.
  • This comprises a feed line leading into each valve housing of a spring-loaded nozzle needle and lockable by a control block with valve function.
  • a nozzle needle spring is provided which is supported in a spring chamber and presses the nozzle needle onto its needle seat, a control chamber arranged on the back of the control piston under system pressure and a solenoid valve through which the control chamber can be connected to a relief line and at the same time the shut-off for injection the supply line leading to the nozzle needle can be lifted by a control piston arranged high pressure valve.
  • a throttled line connection extends between the supply line and the relief line, the line connection comprising a leakage valve in back connection with the solenoid valve, through which the line connection can be interrupted during the injection.
  • the movement of the nozzle needle in the injector housing of a fuel injector can be brought about by controlling the pressure relief of a control chamber integrated in the injector housing, the control chamber using two Flow restrictors can be relieved of pressure.
  • a valve member of a 3/2-way valve can be switched back and forth between individual switching stages, the valve member switching at a first seat in the valve space and into a second seat in the valve space and an intermediate position between the seats leaves.
  • the 3/2 way valve can be operated using a piezo actuator or a solenoid valve.
  • the inlet throttle acting on the control chamber with the control volume under high pressure can open directly into the control chamber which acts on a nozzle needle end face; Another possibility is to position an inlet throttle in the injector body so that it acts on the valve chamber of a 3/2-way valve and one or both outlet channels with integrated outlet throttles can be used as inlets with inlet throttles to the control chamber.
  • a control valve body for example, configured spherically, can be actuated in a second seat or an intermediate position between two seats, so that a slower pressure relief of the control chamber can be achieved via only one flow restrictor or a faster pressure relief of the control chamber via two open drainage channels with therein Drain throttle elements can be achieved.
  • Providing a second outlet throttle to the control chamber acting on the nozzle needle of the fuel injector allows an individual opening and closing of the nozzle needle to be set, so that the injection rate at which the fuel is injected into the combustion chamber of the internal combustion engine can be influenced accordingly.
  • the nozzle needle stroke can be influenced by rapid pressure build-up and rapid pressure relief by the fact that the two outlet throttles relieving the control space can also be used as inlet throttles or inlet ducts by means of a 3/3-way control valve.
  • pressure can build up both over both throttles and over one of the two throttles, so that two closing speeds can be impressed on the nozzle needle via a push rod protruding into the nozzle space or its end face.
  • Both embodiment variants of the idea on which the invention is based thus permit injection course shaping by generating a boot phase or a ramp-shaped injection course.
  • the injection course shaping represents a tried and tested means of positively influencing the emission behavior of the internal combustion engine, by avoiding end-of-combustion injections that would result in high HC emissions.
  • FIG. 1 shows a first embodiment variant of the solution proposed according to the invention with a 3/2-way valve and an inlet throttle opening into the control chamber,
  • FIG. 2 shows the comparison of the injection rates that occur depending on the switching position of the valve body according to the embodiment variant in FIGS. 1 and
  • Figure 3 shows a second embodiment of the solution according to the invention, in which the inlet throttle opens into the valve chamber of a 3/3 control valve.
  • FIG. 1 shows a first embodiment variant of the solution proposed according to the invention with a 3/2-way valve and an inlet throttle opening directly into the control chamber.
  • an injector housing 1 of a fuel injector for injecting fuel into the combustion chamber of an internal combustion engine comprises a valve chamber 3.
  • a spherically configured control valve body 6 of a 3/2-way valve is located in the valve chamber 3 in the injector housing 1.
  • Control valve 5 added.
  • the control valve body 6 of the 3/2-way control valve is actuated via a schematically illustrated transmission element 2.
  • the transmission element 2 passes through a drain hole 4 in the injector housing 1, via which the control volume, which is diverted into the valve chamber 3, can flow when a control chamber 21 is relieved of pressure.
  • a first seat 7 is formed on the valve chamber 3 in the injector housing 1, and a second seat 8 is located opposite it. In dashed lines, an intermediate position 9 is shown, in which the control valve body 6 of the 3/2-way control valve 5 can be adjusted by means of the transmission element 2.
  • a first opens into the valve chamber 3 in the injector housing 1 Drain channel 10 of the control chamber 21.
  • a first drain throttle 12, which is designed in a throttle cross-section 13, is integrated into this. It also extends from the pressure relief.
  • the second outlet throttle 15 is formed in a throttle cross section 16; the cross section of the drain channel 14 provided with a knee 11 is identified by reference numeral 18.
  • the second drain channel 14 also opens into the valve chamber 3, in which the control valve body 6 is received.
  • control chamber 21 in the injector housing 1 is opened with a control volume via an inlet throttle 19.
  • the inlet throttle 19 is integrated into an inlet 20, which extends from a high-pressure collecting space (common rail), not shown.
  • the control chamber 21 is delimited on the one hand by a wall 22 of the injector housing 1, on the other hand the control chamber 21 is delimited by an end face 24 of a push rod 23 which in turn controls the vertical movement of a nozzle needle (not shown in FIG. 1) in the injector housing 1 of the fuel injector.
  • control valve body 6 of the 3/2-way control valve 5 If the control valve body 6 of the 3/2-way control valve 5 is placed over the transmission element 2 in its first seat 7, the control chamber 21 is closed on the outlet side. High pressure is present in the control chamber 21 via the inlet throttle 19 and the inlet 20 from the high-pressure collecting chamber (common rail), which forces the push rod 23 and thus the nozzle needle in the injector housing 1 into its closed position. If, after actuation of the actuator (not shown here), the control valve body 6 of the 3/2-way control valve 5 is placed in its second seat 8 via the transmission element 2, the first outlet channel 10 is closed, so that pressure relief of the control chamber 21 is only via the outlet throttle 15 takes place in the second outlet channel 14.
  • the pressure relief of the control chamber 21 depends on the outlet throttle cross section 16 of the outlet throttle element 15 accommodated in the second outlet duct 14. Corresponding to the pressure relief of the control chamber 21 by the outflowing control volume via the second outlet channel 14 into the valve chamber 3, the push rod 23 is raised into the control chamber 21, so that the nozzle needle opens at a first opening speed.
  • both drain channels 10 and 14 of the control space 21 are connected to the valve chamber 3, so that pressure relief of the control chamber 21 takes place more rapidly by means of two outlet channels 10 and 14 the outflow of control volume can take place.
  • the nozzle needle actuated via the push rod 23 opens faster.
  • the control valve body 6 of the 3/2-way control valve 5 is moved into a central position 9 in accordance with the course of the switching positions designated 43 'in the lower diagram of the illustration in FIG. 2, an injection takes place, which is shown in the upper diagram of the illustration in FIG is shown with the curve 43 in a punctiform representation.
  • the valve body 6 of the 3/2-way control valve 5 moved in the central position 9 results in a faster pressure relief of the control chamber 21, which results in a faster opening movement of the nozzle needle, since the pressure rod 23 moves faster in the control chamber 21 due to a faster pressure relief and therefore the nozzle needle opens faster.
  • the valve body 6 is switched into its second seat 8, so that the switching point is subjected to a slow reduction in pressure in the control chamber 21, which slows down the opening movement of the nozzle needle in the injector housing 1.
  • a dashed line 44 in the upper diagram in FIG. 2 shows a ramp-shaped increase in the injection rate corresponding to the increase in the injection rate 40. If the valve body 6 is then actuated further in order to transfer it into its central position 9 between the first seat 7 and the second seat 8 by means of the transmission element 2, an abrupt sequence follows in accordance with the injection rate curve denoted by reference numeral 44 in the upper diagram of the illustration in FIG. 2 Increase the injection rate to its maximum value, since the nozzle needle now moves into the nozzle chamber 21 at a higher speed via the push rod 23.
  • Figure 3 shows a second embodiment, in which the inlet throttle opens the valve chamber of a 3/3-way control valve.
  • the pressure-releasable control chamber 21 can be controlled via two outlet channels 10 and 14 both in the relief direction to the valve chamber 3 and in the inflow direction 26 to the nozzle chamber 21.
  • the inlet throttle 19 from the inlet 20 of the high-pressure collecting chamber opens into the valve chamber 3.
  • the valve body 6 of a 3/3-way control valve 256 is configured as a spherical body analogous to the representation of the first embodiment variant in FIG. 1 and can be placed in a first seat 7 or a second seat 8 in the valve chamber 3.
  • control valve body 6 of the 3/3-way control valve 25 is actuated by means of a transmission element 2, which can be actuated via an actuator ear (not shown here), be it a piezoelectric actuator or a solenoid valve.
  • the transmission element 2 passes through a leakage oil drain 4 and limits the drain volume from the valve chamber 3 through the throttle point thus formed, in which the preferably spherically configured control valve body of the 3/3-way control valve 25 is accommodated.
  • the control chamber 21 is pressurized by injecting fuel from the inlet 20 of the high-pressure collection chamber via the inlet throttle 19 into the valve chamber 3 and from there in the inlet direction 26 the throttle elements 12 and 15 in the channels 10 and 14 in the injector housing 1, which serve as inlet channels in this switch position.
  • the nozzle needle is moved into its closed position and held in this position by pressurizing the end face 24, which delimits the control chamber 21 on its underside.
  • control chamber 21 is depressurized via the channels 10 and 14 in the injector housing 1, which now function as drainage channels.
  • the control chamber is quickly depressurized 21 over both connected in parallel, Drain channels 10 and 14 opening into the control chamber.
  • the outflowing control volume is based on the cross sections 13 and 16, in which the throttles 12 and 15 are embodied, which are accommodated in the channels 10 and 14 functioning as drain channels.
  • the control valve body 6 of the 3/3-way control valve 25 is placed in its second seat 8, the first channel 10 is closed.
  • a pressure reduction of the pressure-relieved control chamber 21 can only follow via the channel 10 functioning as an outlet channel and the throttle element 15 accommodated therein.
  • the opening speed which in this case is significantly lower than with the control valve body 6 of the 3/3-way control valve 25 switched in the central position, can be achieved by coordinating throttle cross sections of the inlet throttle 19 with the cross section 16 of the throttle element 15.
  • the channel 14 opens laterally in the valve chamber 3 next to the control valve body 6 and acts permanently.
  • the wall 30 of the pressure-releasable control chamber 21 is designed with a stop surface 29, which serves as a stop surface for the end face 24 of the push rod 23 with which the nozzle needle, which is not shown here, has a Vertical movement in the injector housing 1 is impressed.

Landscapes

  • 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)

Abstract

L'invention concerne un injecteur pour injecter du carburant dans le moteur à combustion interne. Une chambre de commande (21) est formée dans le boîtier d'injecteur (1), par l'intermédiaire de laquelle un pointeau servant à fermer ou à libérer des ouvertures d'injection est régulé. La chambre de commande (21) peut être décomprimée au moyen d'un distributeur de commande 3/2 (5) ou d'un distributeur de commande 3/3 (25). Les soupapes de commande (5, 25) sont entourées par une chambre de soupapes (3). La chambre de commande (21) peut être sollicitée en pression directement par un élément d'étranglement d'alimentation et deux éléments d'étranglement (12, 5) commutables en parallèle avec un distributeur 3/2 (5) peuvent être décomprimés, si l'élément de commande utilisé est un distributeur 3/2 (21). En cas d'utilisation d'un distributeur de commande 3/2 (5), la chambre de commande (21) peut être décomprimée par l'intermédiaire de deux éléments d'étranglement (2, 15), commutables dans le sens d'alimentation, sous forme d'éléments d'étranglement (27, 28), en direction de la chambre de commande (21).
PCT/DE2002/002294 2001-06-29 2002-06-21 Injecteur de carburant a formation du cours de l'injection WO2003004857A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02754256A EP1404962A1 (fr) 2001-06-29 2002-06-21 Injecteur de carburant a formation du cours de l'injection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001131619 DE10131619A1 (de) 2001-06-29 2001-06-29 Kraftstoffinjektor mit Einspritzverlaufsformung
DE10131619.4 2001-06-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/762,225 Continuation-In-Part US7485249B2 (en) 2001-07-16 2004-01-16 Double-layer hollow membrane for bio-reactor applications

Publications (1)

Publication Number Publication Date
WO2003004857A1 true WO2003004857A1 (fr) 2003-01-16

Family

ID=7690064

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002294 WO2003004857A1 (fr) 2001-06-29 2002-06-21 Injecteur de carburant a formation du cours de l'injection

Country Status (3)

Country Link
EP (1) EP1404962A1 (fr)
DE (1) DE10131619A1 (fr)
WO (1) WO2003004857A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144226A1 (fr) * 2006-06-13 2007-12-21 Robert Bosch Gmbh Injecteur de carburant
WO2015189082A1 (fr) * 2014-06-12 2015-12-17 Engineering Center Steyr Gmbh & Co Kg Dispositif d'injection de fluide pour moteur à combustion interne
WO2019016399A1 (fr) * 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Dispositif servant à commander un injecteur
US11441524B2 (en) * 2020-06-09 2022-09-13 Hyundai Motor Company Piezoelectric injector and method for controlling the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60314761T2 (de) * 2003-12-12 2007-12-06 Delphi Technologies, Inc., Troy Einspritzventil mit Steuerungsventil, das den Druck im Steuerungsraum steuert
DE102010063981A1 (de) 2010-12-22 2012-06-28 Continental Automotive Gmbh Magnetodynamischer Aktor und Verfahren zur Betätigung eines Kraftstoffeinspritzventils
WO2016097799A1 (fr) * 2014-12-19 2016-06-23 Volvo Truck Corporation Système d'injection d'un moteur à combustion interne et véhicule automobile comprenant un tel système d'injection
DE102017205772A1 (de) 2017-04-05 2018-10-11 Robert Bosch Gmbh Kugelventil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199632A1 (fr) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Système d'injection de combustible pour moteur diesel
EP0976924A2 (fr) * 1998-07-31 2000-02-02 Siemens Aktiengesellschaft Servovalve pour un injecteur et injecteur
DE10055714A1 (de) * 1999-11-10 2001-06-13 Denso Corp Kraftstoffeinspritzventil

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Publication number Priority date Publication date Assignee Title
JPH1089190A (ja) * 1996-09-17 1998-04-07 Nippon Soken Inc 蓄圧式燃料噴射装置
JP3551898B2 (ja) * 2000-06-15 2004-08-11 トヨタ自動車株式会社 燃料噴射弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199632A1 (fr) * 1985-04-19 1986-10-29 Societe Alsacienne De Constructions Mecaniques De Mulhouse Système d'injection de combustible pour moteur diesel
EP0976924A2 (fr) * 1998-07-31 2000-02-02 Siemens Aktiengesellschaft Servovalve pour un injecteur et injecteur
DE10055714A1 (de) * 1999-11-10 2001-06-13 Denso Corp Kraftstoffeinspritzventil

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007144226A1 (fr) * 2006-06-13 2007-12-21 Robert Bosch Gmbh Injecteur de carburant
US7954475B2 (en) 2006-06-13 2011-06-07 Robert Bosch Gmbh Fuel injector
WO2015189082A1 (fr) * 2014-06-12 2015-12-17 Engineering Center Steyr Gmbh & Co Kg Dispositif d'injection de fluide pour moteur à combustion interne
WO2019016399A1 (fr) * 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Dispositif servant à commander un injecteur
US11608805B2 (en) 2017-07-20 2023-03-21 Liebherr-Components Deggendorf Gmbh Device for controlling an injector
US11441524B2 (en) * 2020-06-09 2022-09-13 Hyundai Motor Company Piezoelectric injector and method for controlling the same

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DE10131619A1 (de) 2003-01-23
EP1404962A1 (fr) 2004-04-07

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