EP2273098B1 - Soupape d'injection de carburant et système d'injection de carburant - Google Patents

Soupape d'injection de carburant et système d'injection de carburant Download PDF

Info

Publication number
EP2273098B1
EP2273098B1 EP10161770.2A EP10161770A EP2273098B1 EP 2273098 B1 EP2273098 B1 EP 2273098B1 EP 10161770 A EP10161770 A EP 10161770A EP 2273098 B1 EP2273098 B1 EP 2273098B1
Authority
EP
European Patent Office
Prior art keywords
fuel
valve
fuel injection
solenoid valve
cooling circuit
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
EP10161770.2A
Other languages
German (de)
English (en)
Other versions
EP2273098A1 (fr
Inventor
Matthias Burger
Dietrich Klauk
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 EP2273098A1 publication Critical patent/EP2273098A1/fr
Application granted granted Critical
Publication of EP2273098B1 publication Critical patent/EP2273098B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/077—Injectors having cooling or heating means

Definitions

  • the invention relates to a fuel injection valve for an internal combustion engine having a solenoid valve for controlling the open or closed position of a valve needle, via which the fuel supply to the combustion chamber of the internal combustion engine is controllable.
  • the solenoid valve comprises an electromagnet and a movable armature connected to a valve member and arranged within a valve space.
  • the invention relates to a fuel injection system comprising at least one such injection valve.
  • fuel injectors or fuel injectors are used to inject high pressure fuel into the combustion chamber of an internal combustion engine.
  • the fuel is usually compressed via a high-pressure fuel pump of the fuel injection system to a pressure of up to 2000 bar and a common high pressure storage line ("common rail"), which is also part of the injection system supplied.
  • a common high-pressure accumulator line reaches the high-pressure fuel to the injectors, from where it is injected into the combustion chamber of the internal combustion engine.
  • the actuation of the injection valve is usually via an actuator unit, which may for example comprise a piezo actuator or a solenoid valve, and forms a structural unit with the injection valve.
  • a fuel injector with a solenoid valve as a pressure plate is for example from the published patent application DE 10 2007 029 969 A1 and DE 10 2007 011789 A1 known.
  • the invention is therefore based on the object, a fuel injection valve of the type mentioned in such a way that it is suitable for injection pressures above 2000 bar, without causing the aforementioned disadvantages occur.
  • the proposed fuel injection valve has a solenoid valve for controlling the open or closed position of a valve needle, via which the fuel supply to the combustion chamber of the internal combustion engine is controllable.
  • the solenoid valve comprises an electromagnet and an armature connected to a valve member and movable via the electromagnet, which armature is arranged within a valve chamber.
  • a fuel is provided as a cooling medium incipient cooling circuit for cooling the solenoid valve, wherein the fuel is a storage tank can be removed, with which the solenoid valve is hydraulically connected via a respectively formed on the solenoid valve inlet and outlet.
  • the temperature in the valve chamber can be significantly reduced.
  • a cooling medium is available outside of the fuel injection valve stored fuel, which has a lower temperature than, for example, the fuel, which is used as hydraulic fluid in the injection valve. At injection pressures above 2000 bar, for example, the temperature of the hydraulic fluid can be well over 200 ° C and thus exceed the maximum allowable temperature of critical components.
  • valve chamber is connected to the cooling circuit, so that at the same time a flushing, in particular a forced flushing, of the valve chamber can be effected via the circulating fuel.
  • a flushing in particular a forced flushing
  • the gas content in the valve chamber is kept as constant as possible.
  • the pressure required to convey the fuel serving as cooling medium is preferably effected via a prefeed pump which is integrated in the cooling circuit.
  • the prefeed pump is arranged between the inlet of the solenoid valve and the storage tank. This means that advantageously the inlet of the cooling circuit is connected to the pressure side of the prefeed pump, while the fuel of the return circuit passes directly through the process back into the storage tank.
  • the fuel of the cooling circuit is pumped from the tank through the valve chamber and back into the tank. In this way, a constant cooling of the valve chamber is ensured.
  • the fuel feed pump is set such that the refrigeration cycle is a low pressure circuit.
  • At least one plug-in element which can be connected to the solenoid valve is provided for the hydraulic connection of the inlet formed on the magnetic valve and / or the outlet formed on the magnetic valve with the storage tank.
  • both the inlet, and the drain connected to the plug element.
  • At least two further connections are provided on the plug-in element, by way of which the plug-in element can in turn be connected to the storage tank on the inlet and outlet side.
  • the plug-in element is also T-shaped and has separate flow paths for the incoming and outgoing fuel.
  • the two separate flow paths are hydraulically connected to each other via the valve space, so that a circuit is formed.
  • the plug element preferably has at least one radial bore and / or an axial bore, wherein the bores are each arranged on a common leg of the preferably T-shaped plug-in element.
  • For hydraulic connection of this leg is then placed in a corresponding recess of the solenoid valve, so that a radial bore opens into the inlet formed on the solenoid valve and the drain formed on the solenoid valve is connected via an axial bore of the leg.
  • the flow paths are securely separated.
  • connection can also be reversed, so that the drain formed on the solenoid valve is hydraulically connected to a radial and the inlet to an axial bore of the plug-in element.
  • the flow paths are separated by a central wall.
  • at least one fuel-carrying groove is furthermore preferably provided on the outside of the magnetic core of the electromagnet. This groove can be arranged to extend radially and / or axially. This depends inter alia on which position and orientation of the inlet or the drain has, depending on whether the groove is to lead incoming or outgoing fuel.
  • the magnetic core may have a pot-shaped design and the bottom side in conjunction with the T-shaped plug element, so that a radial bore of the plug element first opens into a radially guided over the bottom side of the magnetic core groove.
  • This groove can be led to radially outward and extend axially from here over the outer peripheral side of the magnetic core until it opens into the valve chamber.
  • such a groove is used on the inlet side.
  • At least one fuel-carrying radially and / or axially extending bore in the magnetic core is also provided to form the cooling circuit, which is preferably used on the outlet side.
  • the cooling circuit which is preferably used on the outlet side.
  • the bore of the guide is used by incoming fuel. Because as already mentioned, the connection of the inlet and the outlet can be made either via a radial or axial bore of the plug element.
  • At least one radially and / or axially extending fuel leading bore in the armature is further provided to form the cooling circuit, so that the valve chamber, for example, with a radially and / or axially extending bore of the magnetic core is connectable.
  • the preferably plate-shaped armature may also have a plurality of recesses, for example in the form of a perforation, via which a hydraulic connection of the valve chamber with at least one serving as a drain bore or groove on the magnetic core can be produced.
  • the fuel injection valve according to the invention proves to be suitable not only for injection systems that exceed a system pressure of 2000 bar, but also for existing systems in which the system pressure is still below 2000 bar. Because of the proposed cooling circuit allows a multiple-clocked injection with very short switching cycles, since overheating of the solenoid due to the correspondingly higher electrical currents is not to be feared. Thus, a multiple injection need not be limited to a few injections. Furthermore, a temperature-induced power loss of the electromagnet can be effectively prevented. The advantages mentioned above are particularly evident in fuel injectors with servo-operated solenoid valves.
  • the fuel injection system comprises a plurality of fuel injection valves of the aforementioned type, which are connected in parallel and / or in series, preferably via the flow paths of a plug-in element.
  • a combination of parallel and series connection is also conceivable.
  • a parallel circuit largely corresponds to the individual circuit already described above. This means that the inlet and the outlet of each injection valve is in direct connection with the storage tank, so that the fuel provided for cooling can be taken directly from the storage tank.
  • the fuel injection valve of FIG. 1 comprises a housing part 21, in which a solenoid valve 1 is held for actuating a valve needle 2, via the open or closed position, the fuel supply to the combustion chamber, he internal combustion engine is controllable.
  • the actuation of the valve needle 2 via the respectively set hydraulic pressure of a control chamber 22, via which the valve needle 2 can be acted upon by a closing pressure. If a pressure drop in the control chamber 22 is effected, the valve needle 2 can assume an open position, in which the release of at least one injection opening takes place via which the injection can be carried out.
  • valve member 4 of the solenoid valve 1 In order to effect a pressure drop in the control chamber 22, a valve member 4 of the solenoid valve 1 is moved to an open position, so that hydraulic fluid can flow out of the control chamber 22 into a valve chamber 6 designed as a low-pressure chamber via an outflow throttle 23, in which the valve member 4 is accommodated.
  • the valve member 4 forms a structural unit with a plate-shaped armature 5, the over the electromagnet 3 is movable such that the valve member 4 can be converted into an open position or a closed position.
  • a magnetic force is exerted on the armature 5, via which the armature 5 including the valve member 4 is moved counter to the pressure force of a valve closing spring 24 in the direction of the magnetic core 17 of the electromagnet 3.
  • the valve member 4 is lifted from its valve seat 25.
  • the lifting movement of the valve member 4 is limited by a trained on the magnetic core 17 stroke stop 26.
  • the stop 26 may be provided with either a non-magnetic stainless steel disc or a chromium coating.
  • the magnetic force collapses and the valve closing spring 24 pushes the valve member 4 back into the valve seat 25, so that the connection to the control chamber 22 is shut off.
  • Via an inlet throttle 27 inflowing fuel can thus cause an increase in the control pressure in the control chamber 22, which transfers the valve needle 2 in a closed position.
  • the solenoid valve of the injector FIG. 1 is "pressure balanced", that is, in the closed position of the valve member 4 no hydraulic forces on the valve member 4 attack.
  • the injection valve has the FIG. 2 a solenoid valve 1, which is not “pressure balanced”. Because the valve member 4 is acted upon in the closed position by the pressure prevailing in the valve chamber 6 hydraulic pressure.
  • the valve seat 25 is in the embodiment of FIG. 2 also conical shaped to cooperate with a part-spherical closing body of the valve member 4.
  • the solenoid valve 1 has a connectable to a storage tank 8 cooling circuit 7, is used in the fuel from the storage tank 8 as a cooling medium.
  • a prefeed pump 11 is arranged between inlet 9 and storage tank 8, the delivery pressure of which permits forced flushing of the valve space 6 connected to the cooling circuit 7.
  • the hydraulic connection of the inlet 9 and the outlet 10 with the storage tank 8 is at the solenoid valve 1 itself produced via a T-shaped plug-in element 12, whose centrally arranged leg, in which two separate flow paths 13, 14 are formed, can be inserted into a central recess of the solenoid valve 1.
  • the recess of the solenoid valve 1 is formed in the bottom region of a cup-shaped magnetic core 17.
  • the usable in this recess leg of the plug element 12 has two connection holes 15, 16, of which one extends radially and the other axially.
  • the radial bore 15 is presently assigned to the inlet 9 of the solenoid valve and the axial bore 16 to the drain 10. However, the assignment can also be reversed, as long as it is ensured that a circuit with separate flow paths 13, 14 is formed, which via the valve chamber. 6 communicate with each other.
  • the inlet 9 continues in a magnetic core 17 formed, initially radially extending groove 18 in the bottom region of the magnetic core 17, which is axially guided along the outer periphery of the magnetic core 17 to finally open into the valve chamber 6.
  • the plate-shaped armature 5 has a bore 20, which finds its continuation in an axial bore 19 of the magnetic core 17, to which the axial bore 16 of the T-shaped plug-in element 12 connects. The cycle is closed.
  • the valve chamber 6 is supplied with “cold” fuel from the storage tank 8 via the prefeed pump 11. There, the “cold” fuel mixed with the existing "hot” fuel, the temperature in the valve chamber 6 is cooled down. At the same time a "cold / hot” fuel mixture in an appropriate amount from the valve chamber 6 again supplied to the storage tank 8.
  • the prefeed pump 11 ensures a sufficient delivery pressure, so that the valve chamber 6 undergoes a forced flush via the cooling circuit 7. As a result, the temperature in the valve chamber 6 can be lowered permanently.
  • the idea according to the invention can be implemented very easily in already existing series products.
  • the invention is particularly interesting for use in commercial vehicles, because here prevail usually very high system pressures.

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)

Claims (8)

  1. Soupape d'injection de carburant pour un moteur à combustion interne comprenant une électrovanne (1) pour commander la position d'ouverture ou de fermeture d'un pointeau de soupape (2), par le biais duquel l'alimentation en carburant à la chambre de combustion du moteur à combustion interne peut être commandée, l'électrovanne comprenant un électroaimant (3) et un induit (5) connecté à un organe de soupape (4), pouvant être déplacé par le biais de l'électroaimant, qui est disposé à l'intérieur d'un espace de soupape (6), un circuit de refroidissement (7) utilisant du carburant en tant que réfrigérant étant prévu pour refroidir l'électrovanne (1), le carburant pouvant être prélevé d'un réservoir (8), l'électrovanne étant à chaque fois connectée hydrauliquement au circuit de refroidissement (7) par le biais d'une alimentation (9) et d'une sortie (10) réalisées au niveau de l'électrovanne et l'espace de soupape (6) étant raccordé au circuit de refroidissement (7), de telle sorte qu'un rinçage forcé de l'espace de soupape (6) puisse en même temps être réalisé par le biais du carburant en circulation, caractérisée en ce que pour la connexion hydraulique au réservoir (8) de l'alimentation (9) réalisée au niveau de l'électrovanne (1) et/ou de la sortie (10) réalisée au niveau de l'électrovanne (1), au moins un élément enfichable (12) pouvant être connecté à l'électrovanne est prévu, l'élément enfichable (12) étant réalisé en forme de T et présentant des chemins d'écoulement séparés (13, 14) pour le carburant arrivant et sortant.
  2. Soupape d'injection de carburant selon la revendication 1, caractérisée en ce que pour refouler le carburant servant de réfrigérant, la pression requise peut être produite par le biais d'une pompe de pré-refoulement (11) qui est disposée de préférence entre l'alimentation (9) et le réservoir (8).
  3. Soupape d'injection de carburant selon la revendication 1, caractérisée en ce que l'élément enfichable (12) présente au moins un alésage radial (15) et/ou un alésage axial (16) pour la connexion hydraulique à l'électrovanne (1).
  4. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que pour réaliser le circuit de refroidissement, il est prévu au moins une rainure (18) conduisant le carburant à l'extérieur au niveau du noyau magnétique (17) de l'électroaimant (3), laquelle s'étend radialement et/ou axialement.
  5. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que pour réaliser le circuit de refroidissement, au moins un alésage (19) conduisant le carburant est prévu dans le noyau magnétique (17) de l'électroaimant (3), lequel s'étend radialement et/ou axialement.
  6. Soupape d'injection de carburant selon l'une quelconque des revendications précédentes, caractérisée en ce que pour réaliser le circuit de refroidissement, au moins un alésage (20) conduisant le carburant est prévu dans l'induit (5), lequel s'étend radialement et/ou axialement.
  7. Système d'injection de carburant d'un moteur à combustion interne comprenant au moins une soupape d'injection de carburant selon l'une quelconque des revendications précédentes.
  8. Système d'injection de carburant selon la revendication 7, caractérisé en ce que plusieurs soupapes d'injection de carburant sont montées en parallèle et/ou en série par le biais des chemins d'écoulement (13, 14) de l'élément enfichable (12).
EP10161770.2A 2009-07-03 2010-05-03 Soupape d'injection de carburant et système d'injection de carburant Not-in-force EP2273098B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009027459A DE102009027459A1 (de) 2009-07-03 2009-07-03 Kraftstoffeinspritzventil und Kraftstoffeinspritzsystem

Publications (2)

Publication Number Publication Date
EP2273098A1 EP2273098A1 (fr) 2011-01-12
EP2273098B1 true EP2273098B1 (fr) 2017-01-25

Family

ID=42830070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10161770.2A Not-in-force EP2273098B1 (fr) 2009-07-03 2010-05-03 Soupape d'injection de carburant et système d'injection de carburant

Country Status (2)

Country Link
EP (1) EP2273098B1 (fr)
DE (1) DE102009027459A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512422B1 (de) * 2012-02-07 2016-01-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102013227063A1 (de) * 2013-12-23 2015-06-25 Robert Bosch Gmbh Kraftstoffinjektor
WO2019186290A1 (fr) * 2018-03-29 2019-10-03 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Dispositif d'injection de carburant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394402A2 (fr) * 2002-08-30 2004-03-03 Robert Bosch Gmbh Connecteur pour conduites de transport de fluide
US20060107928A1 (en) * 2004-11-25 2006-05-25 Itt Manufacturing Enterprises, Inc. Device to attach a fuel return line to a fuel injector and device to suction fuel from a fuel injector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0466742A (ja) * 1990-07-05 1992-03-03 Yamaha Motor Co Ltd 高圧燃料噴射式エンジンのアイドリング制御装置
DE102007011789A1 (de) * 2007-03-12 2008-09-18 Robert Bosch Gmbh Kraftstoffinjektor
DE102007029969A1 (de) 2007-06-28 2009-01-08 Robert Bosch Gmbh Schnellschaltender Kraftstoffinjektor für hohe Einspritzdrücke
AT505666B1 (de) * 2007-08-20 2009-03-15 Bosch Gmbh Robert Verfahren und vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102008002720A1 (de) * 2008-06-27 2009-12-31 Robert Bosch Gmbh Kraftstoffinjektor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394402A2 (fr) * 2002-08-30 2004-03-03 Robert Bosch Gmbh Connecteur pour conduites de transport de fluide
US20060107928A1 (en) * 2004-11-25 2006-05-25 Itt Manufacturing Enterprises, Inc. Device to attach a fuel return line to a fuel injector and device to suction fuel from a fuel injector

Also Published As

Publication number Publication date
EP2273098A1 (fr) 2011-01-12
DE102009027459A1 (de) 2011-01-05

Similar Documents

Publication Publication Date Title
DE4311627B4 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
EP1125046B1 (fr) System d'injection de carburant pour un moteur à combustion interne avec un multiplicateur de pression
DE102014005741A1 (de) Dual-brennstoffeinspritzvorrichtung mit f-, a- und z-zumessöffnungssteuerung
EP2307698B1 (fr) Injecteur de carburant
EP2867517B1 (fr) Injecteur de carburant pour moteurs à combustion interne
DE102012015624A1 (de) Drei-Wege-Nadelsteuerventil und dieses verwendendes Dual-Brennstoffeinspritzsystem
EP2628938B1 (fr) Soupape d'injection de combustible
EP2888469B1 (fr) Système common rail
DE10229419A1 (de) Druckübersetzter Kraftstoffinjektor mit schnellem Druckabbau bei Einspritzende
WO2007038811A1 (fr) Dispositif pour injecter des carburants dans la chambre de combustion d'un moteur a combustion interne
EP2273098B1 (fr) Soupape d'injection de carburant et système d'injection de carburant
EP1925812B1 (fr) Soupape d'injection de carburant pour moteurs à combustion interne
EP1939441A2 (fr) Injecteur de carburant
EP3394420B1 (fr) Électrovalve pour une soupape d'injection de carburant, procédé de fonctionnement de l'électrovalve et soupape d'injection de carburant comprenant une telle électrovalve
EP2733345A1 (fr) Soupape de régulation de pression pour un accumulateur haute pression d'un moteur à combustion
EP2119903B1 (fr) Injecteur de carburant et moteur à combustion interne
EP2147206B1 (fr) Injecteur de carburant avec électrovanne
EP1483499B1 (fr) Systeme pour moduler en pression le comportement d'injection
WO2013117979A1 (fr) Dispositif d'injection de carburant dans la chambre de combustion d'un moteur à combustion interne
DE102005061362B3 (de) Drucksteuerventil und Einspritzanlage für eine Brennkraftmaschine mit einem Drucksteuerventil
EP2019198B1 (fr) Injecteur
EP1911966A2 (fr) Injecteur de carburant pour un moteur à combustion interne
EP1887213B1 (fr) Injecteur de carburant doté d'une commande à aiguille directe et assistance par servosoupape
DE102012021154B4 (de) Doppelnadelinjektor
EP2628939B1 (fr) Soupape d'injection de combustible

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

17P Request for examination filed

Effective date: 20110712

17Q First examination report despatched

Effective date: 20160429

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161010

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 864307

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010013105

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170425

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170426

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170525

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170425

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170525

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010013105

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20171026

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 864307

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170503

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190521

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170125

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190716

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170125

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010013105

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201201