EP1920156B1 - Systeme d'injection de carburant pour un moteur a combustion interne - Google Patents

Systeme d'injection de carburant pour un moteur a combustion interne Download PDF

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Publication number
EP1920156B1
EP1920156B1 EP06776523A EP06776523A EP1920156B1 EP 1920156 B1 EP1920156 B1 EP 1920156B1 EP 06776523 A EP06776523 A EP 06776523A EP 06776523 A EP06776523 A EP 06776523A EP 1920156 B1 EP1920156 B1 EP 1920156B1
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EP
European Patent Office
Prior art keywords
valve
injection system
fuel injection
injector
fuel
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
EP06776523A
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German (de)
English (en)
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EP1920156A1 (fr
Inventor
Wolfgang Scheibe
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LOrange GmbH
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LOrange GmbH
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Publication of EP1920156A1 publication Critical patent/EP1920156A1/fr
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Publication of EP1920156B1 publication Critical patent/EP1920156B1/fr
Not-in-force legal-status Critical Current
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    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the invention relates to a fuel injection system for an internal combustion engine according to the preamble of claim 1.
  • a fuel injection system of the aforementioned type is known from DE 195 48 610 A1 known. It is in this system, the volume of the downstream injection injector supplied limiting and additional as a quantity limiting valve also differential pressure dependent and working as a check valve, external energy controlled 2/2-way valve provided.
  • the actuating device associated with the valve operates magnetically, and the valve body can be loaded in the direction of its open position via a restoring force formed by a variable electromagnetic field. This is intended to enable a mode of operation of the valve in which this is controlled as a function of operating parameters of the internal combustion engine, in particular as a function of the respectively permissible maximum injection volume of the downstream fuel injector.
  • Such a design requires a high control effort and requires differential pressure dependent high actuating forces.
  • the invention has the object of providing an injection system of the type mentioned in such a way that both the control effort and the energy requirements of the actuator are reduced, and this configuration due to a total of reduced energy consumption.
  • the energy requirement of the valve is essentially limited in the upper limit to the value required to overcome the differential force plus a safety threshold established in the respective phase between successive injections in undisturbed operation. If the injection injector operates without leakage or at least without leakage, only slight differences in pressure result, and the actuating force in the opening direction resulting from the pressure differences, that is to say from the differential pressure, is only slight. Greater pressure differences are an indicator of impermissible leakage or other disturbances in the transition from the valve to the subsequent injector, and such pressure differences corresponding forces should not be overcome consciously in the inventive solution, so that appropriate restoring forces are not applied.
  • the overflow of the valve body of the injection injector inlet side upstream valve is substantially throttle-free, so that resulting from such throttling restoring forces are also not overcome in the supply of the fuel injector also corresponding throttle losses can be avoided, which the Total energy consumption lowers.
  • the actuating force of the actuating device must also be only a relatively small safety threshold above the closing force, which corresponds to the pressure difference effective at the valve body during trouble-free operation of the injection injector and the injection injector, no high security marches are required for the design of the actuating device. so that also structurally simple and easy adjusting devices are usable, so in particular magnetic actuators.
  • the application of the teaching of the invention is not limited to in the direction of the valve body of the injection injector upstream valve überströmbare valves, but also to realize in connection with valves, the valve body is overflowed transversely to the direction of adjustment and thus loaded differential pressure in his leadership, which is made This differential pressure-dependent load of the respective adjustment results in counteracting frictional forces, so that these friction forces must be taken into account for the design of the adjusting device.
  • valve upstream of the injection injector according to the invention can also be used in conjunction with injection injectors which, by design, operate with larger leaks.
  • injection injectors which, by design, operate with larger leaks.
  • a storage unit is a structure in which in a housing-side receiving space, a valve piston is provided displaceably adjustable and pressure-dependent adjustable against spring force, so that the piston can be moved to compensate for the leakage volume.
  • Chuer unit with a slidably guided in the receiving space, the storage volume delimiting valve piston the tightly guided valve piston can also be used to shut off the storage volume against the drain connection to the injector, so that with uncontrolled flow of fuel through the injector in case of malfunction of the injector via the storage unit also a shut-off function can be performed.
  • a Mengenbegrenzungsventil which is designed as throttled overflowed Mengenbegrenzungsventil and the function of the uncontrolled inflow of fuel to the combustion chamber of each cylinder to be supplied by Failure of the injector, for example, tearing off the nozzle cap and / or in case of failure of the valve, in particular snagging of the valve in its open position to prevent another inflow of fuel to the internal combustion engine.
  • a fuel injection system 2 is shown for an internal combustion engine 1 operating as a diesel engine.
  • the injection takes place, as shown in the figure for a cylinder of the multi-cylinder internal combustion engine 1, each to a combustion chamber 3 via an injection nozzle 12 of an injection injector 7, which is connected to a fuel supply line 11, starting from a fuel tank 10, a low-pressure fuel pump , and arranged downstream as a high-pressure source, a high-pressure fuel pump 5 with downstream high-pressure accumulator 6 are arranged.
  • a high-pressure fuel pump 5 with downstream high-pressure accumulator 6 From the high-pressure accumulator 6 from branching the supply of the individual cylinders associated injection injectors 7, wherein each of the injectors 7 is preceded by a respective valve assembly 8.
  • the control of the injectors 7 takes place, as indicated schematically, via a control and regulation unit 4.
  • valve assembly 8 in the Fig. 1 only schematically indicated valve assembly 8, as in 3 and 4 illustrated, formed by a foreign energy driven according to the invention valve 14, or comprises such a valve 14.
  • a valve 14 is in Fig. 2 shown in a preferred embodiment of the invention, the direction of flow is illustrated by the arrow 31.
  • the valve 14 has as an adjustable locking member on a valve body 23 and includes between inlet side and outlet portions 15 and 16 of the fuel supply line 11 and connected to these end pieces 27, 28, which are connected via an axial clamping connection 29 sealingly, wherein the clamping connection 29 through as housing-like clamping sleeves 36, 37 designed housing halves is realized, the radial shoulders of the end pieces 27, 28 overlap.
  • the section 16 associated end piece 28 is formed as a receptacle for the valve body 23 and has a corresponding bore 30 which is widened in diameter relative to the cross section of the portion 16 of the fuel supply line 11.
  • the guided in the bore 30 valve body 23 runs with a poppet 33 on a seat surface 32 in the transition of the bore 30 on the section 16.
  • the valve cone 33 is in turn connected to a shaft part of the valve body 23, which forms the armature 34 of a magnetic actuator 26 formed as a hollow shaft.
  • the magnetic actuator 26 comprises a magnetic coil 35 which is arranged to surround the end piece 28 in a radial recess of the clamping sleeve 37 and in axial extension of a threaded neck of the clamping sleeve 36, which is overlapped by a discontinuing provided for clamping sleeve 37 collar and screwed against it.
  • the valve body 23 flows centrally, in the area of the valve cone 33 overflowed circumferentially, and the respective free flow cross sections correspond in the open position of the valve body 23 substantially the flow cross sections in the sections 15, 16, so that in the Open position of the valve body 23 is given an at least largely unthrottled flow or overflow, which at most a small actuating force in the direction of the closed position of the valve body 23, the in Fig. 2 shown has resulted.
  • Such a force in the closing direction instead of and / or in addition, are also applied via a support spring 46, as it is preferably arranged in extension of the armature 34 forming hollow shaft in support against the tail 27.
  • the at least largely unthrottled flow or overflow is expedient, since the valve 14 is open during the injection phase and a reduction of the injection pressure would be associated with the throttling. Therefore, it is particularly the application of spring force to the valve body 23.
  • the magnetic actuator 26 is energized as part of the generally designated 25 actuating device via the line connection 38, in the time range of injection of the injection injector 7, in the fuel supply line 11, the valve assembly 8, ie in particular the valve 14 according to the invention, which, as in Fig. 1 dashed lines indicated, thereby easily achieve that over the control unit 4 an approximately simultaneous energization of the injector 7 and the magnetic actuator 26 takes place.
  • the supply of fuel to the injector 7 is released via the valve 14 in the time range of the injection, and with completion of the respective injection is blocked via the valve cone 33 and the fuel flow in the direction of the injection injector 7.
  • the injection injector 7 If the injection injector 7 operates without leakage or virtually free of leakage, the injection injector 7 thus shows trouble-free operating behavior in accordance with its respective design, then there is substantially no pressure drop in the operating phase lying between successive injections in the outflow-side section 16 of the fuel supply line 11. Thus, there is no pressure difference between the inlet-side line section 15 and the outlet-side line section 16, which would prevent opening of the valve 14 by adjusting the valve body 23 via the magnetic actuator 26 whose actuating force is designed for undisturbed operation.
  • Fig. 3 This comprises a housing 51 and a receiving space 52 which lies in the flow path of the fuel supply line 11, wherein of the housing-side pipe parts of the inlet-side pipe part 54 and the outlet-side pipe part are designated by 55.
  • valve piston 53 Between these line parts is located within the receiving space 52 of the valve piston 53, which is supported against the inlet direction (arrow 31) via a spring 56 and the counter to the spring force from its inlet-side stop position is adjustable in a drain-side stop position.
  • the related stroke is designated H.
  • inlet-side stop position is defined by the valve piston 53 a stroke H corresponding stroke volume, which is at least equal to, but preferably greater than the maximum injection volume of the injection injector. 7
  • Open valve 14 provided that the valve piston 53 is adjusted due to the given inflow side pressure against the force of the spring 56 by a stroke, to the a stroke volume correlates, which corresponds to the injection volume. If a discharge volume exceeding the tolerance value exceeds the maximum permissible injection volume, then the valve piston 53 moves into its blocking position.
  • valve piston 53 moves only over a portion of its maximum stroke H, and it is the extent displaced stroke volume in the injection pauses of the downstream injection injector 7, so balanced when the fuel supply to the combustion chamber 3, characterized in that the valve piston 53 "leaking" in the receptacle 52 is guided.
  • a leaking guide can be achieved by appropriate game design between the valve piston 53 and receptacle 52, or by otherwise provided throttled overflow.
  • the valve piston 53 is sealingly guided via annular collars 57 in the receptacle 52 and there are associated with these annular collars 57 throttling overflow 58.
  • a biased storage or buffer volume embodied in a storage unit 60, which is structurally similar to a flow control valve 50, but deviating therefrom in the receiving space 62 of the housing 61 tightly guided valve piston 63 has.
  • This also lies axially between an inlet 64 and a drain 65, wherein the inlet side is connected to the inlet-side connection 15 and the outlet side to the outlet-side connection 16 of the valve 14.
  • the valve piston 63 is again loaded by a spring 66 on its inlet-side stop position, and to move against the force of the spring 66 in response to the pressure difference between the inlet side and drain side in its drain-side stop position.
  • the shut off via the valve piston 63 stroke volume is only with the outlet side port 16th the valve, or lying between the valve 14 and the injection injector 7 portion of the fuel supply line 11 in connection.
  • valve 14 Closes the valve 14, so enter through the injector-side leakage outflow losses that would lead to a downstream pressure drop, if they were not compensated by the stored in the storage element 60 and pressurized fuel volume. If these outflow losses resulting in the respective phases of the non-injection are greater than permissible, they can no longer be compensated for via the volume of the storage unit 60. Accordingly, there are differences in pressure between the inlet side and the outlet side of the valve 14, by which this is kept closed. If the losses remain within the permissible limits, the storage volume in the injection phases is replenished in each case.
  • a flow control valve 50 is provided which in construction and function that according to Fig. 3 equivalent. Reference is made to the relevant comments above.
  • a solution for a valve 14 in the form of a slide valve 70 shown which is overflowed transversely to the direction of adjustment.
  • the overflowable transversely to the direction of adjustment slide is denoted by 71, the overflow direction in turn illustrated by the arrow 31.
  • the slide 71 assumes its blocking position, the adjusting device 72 is in turn illustrated as a magnetic adjusting device.
  • the slider 71 is provided with an overflow opening 73, which is indicated by dashed lines.
  • the situation shown corresponds to a closed position, and at a pressure difference between inflow side and outflow side of the slide 71 is subjected to force transversely to its direction of adjustment, resulting in the slide 71 to be intercepted shear forces corresponding frictional forces against the slide housing 74.
  • the related by such pressure differences supporting forces between the slider 71 and the housing 74 are illustrated as transverse forces to the direction of adjustment of the slider by arrows 75.
  • a corresponding power supply can, as already described, be limited according to the invention, so that at correspondingly high pressure differences of the corresponding, required to adjust the slide 71 actuating force requirement can not be met, with the result that at pressure differences exceeding the corresponding limits, the slider 71st remains in its blocking position and thus can not be adjusted in its open position despite appropriate action on the adjusting device 72, wherein with respect to the power requirement to take into account that possibly also the force of acting in the direction of the closed position spring 46 is overcome.

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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 (17)

  1. Système d'injection de carburant pour moteurs à combustion interne (1), comprenant une source de carburant haute pression (5), un injecteur (7) injectant dans une chambre de combustion (3) d'un cylindre du moteur à combustion interne (1) et une soupape (14) située dans la conduite d'amenée de carburant (11) depuis la source haute pression (5) jusqu'à l'injecteur de carburant (7), qui est commutée à l'ouverture dans l'intervalle de temps de l'injection de l'injecteur (7) par le biais d'un dispositif de commande (25) et dont le corps de soupape (23) adopte une position de fermeture en cas de chute de pression, provoquée par une perturbation, du côté de la sortie de la soupape (14), et qui dans cette position de fermeture, est sollicité par une force correspondant à la différence de pression existant entre le côté d'entrée et de sortie de la soupape (14),
    caractérisé en ce que
    - le corps de soupape (23) est recouvert par l'écoulement au moins de manière sensiblement non étranglée dans la position d'ouverture de la soupape (14),
    - la force de commande du dispositif de commande (25) pour régler le corps de soupape (23) de sa position de fermeture dans la direction d'ouverture est limitée à une valeur limite, et
    - la valeur limite, lorsque l'injecteur (7) fonctionne sans perturbation et est commandé conjointement avec la soupape (14), correspond à la différence de pression agissant au niveau du corps de soupape (23), s'établissant entre des injections successives, plus une valeur seuil de sécurité.
  2. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    le corps de soupape (23) est sollicité par ressort dans la direction de la position de fermeture.
  3. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    le corps de soupape (23) de la soupape (14) dans sa position d'ouverture est sollicité avec une force provoquée par l'écoulement dans la direction de sa position de fermeture.
  4. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    le corps de soupape (23) se trouvant dans une position d'ouverture peut être déplacé par le biais d'une force de commande du dispositif de commande (25) dans la direction de sa position de fermeture.
  5. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    le dispositif de commande (25) pour la soupape (14) est réalisé sous forme de dispositif de commande à commande électrique.
  6. Système d'injection de carburant selon la revendication 5,
    caractérisé en ce que
    le dispositif de commande (25) pour la soupape (14) est réalisé sous forme de dispositif de commande magnétique.
  7. Système d'injection de carburant selon la revendication 6,
    caractérisé en ce que
    le corps de soupape (23) guidé dans un alésage de boîtier (30) présente une région longitudinale réalisée sous forme d'induit magnétique (34), qui se situe dans la région de recouvrement vers une bobine magnétique (35) périphérique du côté du boîtier et en ce que le boîtier se compose d'un matériau non magnétique dans la région (45) entre la bobine magnétique (35) et l'induit magnétique (34).
  8. Système d'injection de carburant selon la revendication 7,
    caractérisé en ce que
    l'alésage de boîtier (30) se termine par une surface de siège (32) dans la direction d'écoulement, et en ce que l'induit magnétique (34) porte un cône de soupape (33) associé à la surface de siège (32), lequel se compose d'un matériau non magnétique.
  9. Système d'injection de carburant selon la revendication 7,
    caractérisé en ce que
    l'induit magnétique (34) est réalisé sous forme de tige creuse.
  10. Système d'injection de carburant selon la revendication 8 ou 9,
    caractérisé en ce que
    l'induit magnétique (34) est parcouru centralement par l'écoulement et le cône de soupape (33) est recouvert par l'écoulement du côté extérieur.
  11. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    l'injecteur de carburant (7) et le dispositif de commande (25) de la soupape (14) située dans la conduite d'amenée de carburant (11) à cet injecteur (7) sont alimentés pendant le même intervalle de temps, en particulier pratiquement simultanément, et sont commutés à l'ouverture en cas de fonctionnement sans perturbation.
  12. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    dans le cas d'un injecteur de carburant (7) conçu de par sa construction pour fonctionner au moins pratiquement sans fuite, une soupape de limitation de quantité (50) pouvant être recouverte par l'écoulement de manière étranglée est montée en amont de cette soupape (14) montée en amont de l'injecteur du côté de l'alimentation.
  13. Système d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    dans le cas d'un injecteur de carburant (7) conçu de par sa construction pour fonctionner avec fuite, on prévoit, dans la dérivation allant à la soupape (14) montée en amont de cet injecteur (7) du côté de l'alimentation, une unité d'accumulateur (60) dont le volume de réserve est ouvert vers le côté de sortie de la soupape (14) et qui peut être sollicité en pression par le biais du raccord de l'unité d'accumulateur (60) du côté de l'alimentation vers la soupape (14).
  14. Système d'injection de carburant selon la revendication 13,
    caractérisé en ce que
    l'unité d'accumulateur (60) présente un espace de réception pour un piston de soupape (63) guidé hermétiquement, limitant le volume d'accumulation de manière déplaçable vers le côté d'alimentation.
  15. Système d'injection de carburant selon la revendication 14,
    caractérisé en ce que
    le piston de soupape (63) est sollicité par ressort dans la direction du raccord (64) du côté de l'alimentation et peut être déplacé par sollicitation en pression dans la direction d'une position de butée de blocage opposée.
  16. Système d'injection de carburant selon la revendication 14 ou 15, caractérisé en ce que le volume d'accumulateur (60) correspond à une addition de sécurité au volume d'injection maximal de l'injecteur (7).
  17. Système d'injection de carburant selon la revendication 13,
    caractérisé en ce que
    l'on prévoit du côté de l'alimentation vers la soupape (14) une soupape de limitation de quantité (50) pouvant être recouverte par l'écoulement de manière étranglée, montée en amont de celle-ci et du branchement de dérivation allant au dispositif d'accumulateur (60).
EP06776523A 2005-08-02 2006-07-31 Systeme d'injection de carburant pour un moteur a combustion interne Not-in-force EP1920156B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005036780A DE102005036780A1 (de) 2005-08-02 2005-08-02 Kraftstoff-Einspritzsystem für eine Brennkraftmaschine
PCT/EP2006/007560 WO2007014734A1 (fr) 2005-08-02 2006-07-31 Systeme d'injection de carburant pour un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1920156A1 EP1920156A1 (fr) 2008-05-14
EP1920156B1 true EP1920156B1 (fr) 2011-06-22

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EP06776522A Not-in-force EP1920155B1 (fr) 2005-08-02 2006-07-31 Systeme d'injection de carburant pour un moteur a combustion interne
EP06776523A Not-in-force EP1920156B1 (fr) 2005-08-02 2006-07-31 Systeme d'injection de carburant pour un moteur a combustion interne

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EP06776522A Not-in-force EP1920155B1 (fr) 2005-08-02 2006-07-31 Systeme d'injection de carburant pour un moteur a combustion interne

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EP (2) EP1920155B1 (fr)
JP (2) JP5122455B2 (fr)
KR (2) KR101358851B1 (fr)
AT (2) ATE454550T1 (fr)
DE (2) DE102005036780A1 (fr)
WO (2) WO2007014734A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2423498B1 (fr) * 2010-08-26 2013-09-11 Wärtsilä Schweiz AG Soupape de limitation de débit passive
CN103807230A (zh) * 2012-11-12 2014-05-21 浙江蓝龙科技有限公司 一种人造金刚石压机空程前进分流系统
DE102014105439B4 (de) * 2014-04-16 2020-03-26 Woodward L'orange Gmbh Mengenbegrenzungsventil für ein Dual-Fuel-Kraftstoffeinspritzsystem
EP3146195B1 (fr) * 2014-05-22 2019-07-24 Wärtsilä Finland Oy Élément de raccordement pour systèm d'injection.

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EP1920155B1 (fr) 2010-01-06
DE502006005872D1 (de) 2010-02-25
JP5122455B2 (ja) 2013-01-16
EP1920156A1 (fr) 2008-05-14
KR101358851B1 (ko) 2014-02-05
EP1920155A1 (fr) 2008-05-14
JP2009503348A (ja) 2009-01-29
JP2009503349A (ja) 2009-01-29
KR101231701B1 (ko) 2013-02-08
JP4869346B2 (ja) 2012-02-08
WO2007014733A1 (fr) 2007-02-08
WO2007014734A1 (fr) 2007-02-08
ATE454550T1 (de) 2010-01-15
DE102005036780A1 (de) 2007-02-08
KR20080043803A (ko) 2008-05-19
KR20080045689A (ko) 2008-05-23
ATE513987T1 (de) 2011-07-15

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