EP2526283B1 - Procédé pour thermoréguler un injecteur d'une injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne - Google Patents

Procédé pour thermoréguler un injecteur d'une injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne Download PDF

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EP2526283B1
EP2526283B1 EP11702387.9A EP11702387A EP2526283B1 EP 2526283 B1 EP2526283 B1 EP 2526283B1 EP 11702387 A EP11702387 A EP 11702387A EP 2526283 B1 EP2526283 B1 EP 2526283B1
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Prior art keywords
pressure
injector
fuel
pump
flushing amount
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EP11702387.9A
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German (de)
English (en)
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EP2526283A1 (fr
Inventor
Martin Bernhaupt
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Robert Bosch GmbH
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Robert Bosch GmbH
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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
    • 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/02—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means with fuel-heating means, e.g. for vaporising
    • 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
    • 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
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M2547/001—Control chambers formed by movable sleeves

Definitions

  • the present invention relates to a method for controlling the temperature of an injector of an injection for the injection of fuel into the combustion chamber of an internal combustion engine in which the fuel is conveyed from at least one prefeed pump from a tank to at least one high-pressure pump and the high-pressure fuel delivered by the high-pressure pump is supplied to the injector in which a high-pressure fuel reservoir is arranged inside the injector and the injector has an injection nozzle with a nozzle needle displaceable axially in a nozzle antechamber which dips into a control space which can be fed with high-pressure fuel, its pressure via a control valve opening or closing fuel for at least one supply or discharge channel is controlled and an apparatus for performing this method, such as in DE 3119050 shown.
  • Injectors of the type described above are often used in common rail injection systems. Injectors for common rail systems for injecting high viscosity fuels into the combustion chamber of internal combustion engines are known in various forms. In the case of heavy oil, heating up to 150 ° C is required to achieve the necessary injection viscosity.
  • an injector for a common rail injection system has different parts, which are usually held together by a nozzle retaining nut.
  • the actual injector nozzle contains a nozzle needle, which is guided axially displaceably in the nozzle body of the injector nozzle and has a plurality of open spaces through which fuel can flow from the nozzle antechamber to the needle tip.
  • the nozzle needle itself carries a collar on which a compression spring is supported, and immersed in a control chamber, which can be acted upon with fuel under pressure.
  • To this control room can an inlet channel via a Inlet restrictor and a flow channel to be connected via an outlet throttle, wherein the respective pressure built up in the control chamber together with the force of the compression spring holds the nozzle needle in the closed position.
  • the pressure in the control chamber can be controlled by a control valve, which is usually operated by an electromagnet.
  • a control valve which is usually operated by an electromagnet.
  • an opening of the solenoid valve can cause a flow of fuel through a throttle, so that a decrease in the hydraulic holding force leads to the immersed into the control chamber end face of the nozzle needle for opening the nozzle needle. In this way, the fuel can pass through the injection openings in the combustion chamber of the engine in the sequence.
  • an inlet throttle is usually also provided, wherein the opening speed of the nozzle needle is determined by the flow difference between the inlet and outlet throttle.
  • a method and apparatus for injecting fuel into the combustion chamber of an internal combustion engine in which the injector for preheating fuel into the combustion chamber can be preheated with tempered fuel.
  • the injector for preheating fuel into the combustion chamber can be preheated with tempered fuel.
  • This may be necessary if the internal combustion engine is operated, for example, with heavy oil, as is often the case with large-volume diesel engines.
  • This warming of the injectors is necessary because the heavy oil in the injectors and in the lines would become thick due to the temperature drop at standstill of the engine and the injectors and lines would clog in the episode with the solidified heavy oil and re-commissioning of the engine is not readily possible would.
  • a subset of the fuel is taken between the prefeed pump and the high-pressure pump of the injection system, passed through a heat exchanger and fed as flushing through a separate channel in the injector to the control valve, so that the purge flows through the armature chamber of the control valve and thus maintains a certain elevated temperature.
  • the injectors which according to the WO 2009/023887 are to be used, operate on the common rail principle, in which in a common high-pressure fuel storage, the common rail, fuel is kept under high pressure, the injectors are connected via high pressure lines to the common rail and after actuation of the Control valve in the respective injector to a lifting of the nozzle needle from the valve seat and thus comes to an injection into the combustion chamber, wherein the corresponding injection quantity is provided from the common rail.
  • each injector has its own high-pressure fuel storage and thus can be used as a stand-alone module.
  • a high-pressure fuel storage is not an ordinary line to understand, but it is a high-pressure fuel storage to a pressure-resistant vessel with an inlet and a derivative whose Diameter compared to the high pressure lines is considerably increased, so that from the high-pressure fuel storage a certain amount of injection can be delivered without causing an immediate pressure drop, as would be the case if the injection amount would be taken from a common high-pressure line.
  • a control amount which is discharged through the open control valve, which controls the pressure in the control chamber at the end remote from the injectors end of the control needle in the low pressure region.
  • the object of the present invention is thus to provide a method and a device with which or which succeeds to prevent solidification of the fuel in the injectors of an internal combustion engine with a modular design.
  • the method of the type mentioned is inventively further developed such that during the stoppage of the internal combustion engine between the prefeed pump and the high-pressure pump a subset of the fuel diverted as flushing, passed through a heat exchanger for heating the fuel and the high-pressure fuel storage is supplied, so this is flowed through by the flushing volume.
  • the high-pressure pumps rest, and the pressure in the system falls below the prefeed pressure of the prefeed pump, so that the pressure of the prefeed pump is sufficient to pump fuel into the high-pressure fuel storage.
  • the fuel provided for this purpose is inventively taken between the prefeed pump and the high-pressure pump, heated in a heat exchanger and fed directly to the high-pressure fuel storage.
  • the high-pressure fuel accumulator constitutes a relatively large volume inside the injector, so that the entire injector is sufficiently heated when the high-pressure fuel accumulator is kept at a corresponding temperature.
  • the invention is advantageously developed to the effect that the fuel is conveyed by the prefeed pump to an overpressure of 5-10, so that pressure losses due to the cable lengths with certainty be overcome and a reliable flushing and thus temperature control of all injectors is ensured.
  • the procedure is preferably such that the flushing quantity is discharged from the injector via connections for high-pressure fuel lines of the injection.
  • the high-pressure fuel lines which, as already mentioned, are not under high pressure when the internal combustion engine is at rest, are optionally connected to the low-pressure region of the injection system in internal combustion engines with a modular structure, with the interposition of a manifold, so that the flushing quantities can be removed via these lines.
  • the procedure is preferably such that the flushing quantity is returned to the tank or to the prefeed pump, so that here too a corresponding temperature level can be maintained in order to prevent clogging of lines in this area.
  • the temperature of the internal combustion engine decreases continuously at standstill, so that the amount of heat that must be introduced to maintain the fluidity of the fuel in the injector increases with the downtime. Up to a certain limit temperature, there will be no need to supply a purge amount, since the engine is already hot enough to keep the fuel liquid, which falls below this limit temperature, a heating is necessary and the diverted flushing amount must be increased with the duration compensate for the ever lower temperatures of the internal combustion engine in the injector.
  • the method according to the invention is therefore further developed such that the purge quantity diverted between the prefeed pump and the high-pressure pump is regulated.
  • a further flushing quantity is supplied directly to the control valve of the injector, so that in addition to the high-pressure fuel storage, which is usually in communication with the nozzle front chamber and together with this forms the high-pressure side of the injector, the can be maintained by the control valve and the associated outflows formed by the control valve low pressure side of the injector by a correspondingly controlled flushing at an elevated temperature.
  • This may be necessary in particular for injectors of particularly large size, in order to be able to keep the entire injector sufficiently warm.
  • the method according to the invention therefore further developed such that the supply line for the flushing quantity to the high-pressure fuel storage is closed by a check valve during operation of the internal combustion engine.
  • the device for injecting fuel into the combustion chamber of an internal combustion engine for carrying out the method according to the invention comprises at least one prefeed pump for conveying fuel from a tank, at least one high-pressure pump and at least one injector, wherein the fuel delivered by the prefeed pump of the high-pressure pump and of the high-pressure pump funded high-pressure fuel is supplied to the injector, inside the injector, a high-pressure fuel storage is arranged and the injector has an injector with an axially displaceable nozzle in an antechamber nozzle, which dips into a high pressure fuel feedable control chamber whose pressure via at least one inlet or outlet channel for Controlled fuel opening or closing control valve.
  • Such injections are referred to as modular common rail systems, since the individual injectors each have their own high-pressure fuel storage, which assumes the function of the rail and the injection otherwise proceeds as in conventional injectors in common-rail engines.
  • the pressure of the high-pressure fuel accumulator is constantly present, whereby a control chamber which is likewise under this pressure is arranged at the end of the nozzle needle facing away from the injection nozzles, via the actuation of a control valve be temporarily reduced.
  • the opening forces on the nozzle needle are greater than the closing forces, so that the injection holes are released.
  • the device according to the invention is developed to advantage in that the prefeed pump is designed to deliver the fuel to 5-10 bar.
  • a particularly preferred form of discharging the supplied flushing quantity from the injector can be achieved by connecting a T-piece to the injector, which connects high-pressure lines to the high-pressure fuel reservoir or the nozzle antechamber of a first injector and to the T-piece of another injector, so that the discharge of the flushing amount via the high-pressure lines for the high-pressure fuel, which is required during operation of the internal combustion engine, can take place.
  • the device according to the present invention is preferably further developed such that low-pressure lines are arranged for the return of the flushing amount to the prefeed pump.
  • the device is preferably further developed such that a throttle and / or a Control valve for controlling the flushing amount is arranged in the branch line.
  • the injector When the injector is made particularly large, it may be advantageous not only to temper the high pressure accumulator with a purge amount, but also to heat the low pressure side of the injector.
  • the device according to the invention can be further developed in such a way that a connection directly connected to the control valve of the injector for a further flushing quantity is arranged on the injector.
  • the device according to the invention can be developed with advantage in that in the branch line for the flushing quantity, a check valve is arranged which against Supply direction for the flushing closes.
  • FIG. 1 the schematic structure of an injection according to the invention for carrying out the method according to the invention
  • Fig. 2 a detailed schematic representation of an injector, as used in the present invention is used.
  • Fig. 1 1 denotes a fuel tank, from which fuel is conveyed to a further prefeed pump 2 via a prefeed pump 2 and a filter 3.
  • the fuel is fed via a further filter 3 to the high-pressure pumps 4, which convey the fuel into a collector 5.
  • the high-pressure fuel is supplied via the high-pressure lines 7 and the T-pieces 8 to the injectors 9 shown schematically, the high-pressure fuel reservoirs of the injectors 9 being designated 14.
  • the fuel is diverted after the second feed pump 2 and the heat exchanger 10 before the high pressure pumps via a branch line 11 and the high-pressure accumulators 14 of the individual injectors 9 supplied.
  • a flushing quantity can also be supplied to the low-pressure region of the injectors 9 formed by the control valve and the associated outlets, the corresponding outflow in the sequence via the low-pressure lines 6 into the low-pressure region, for example into the Manifold 15 of the injection system opens.
  • a schematically illustrated check valve 13 is arranged in the region of the mouth of the branch lines 11 in the high-pressure accumulator of the injectors, which closes in the direction of arrow 16 to prevent a backflow of high-pressure fuel through the branch line 11.
  • a similar valve may also be arranged in the T-piece 8.
  • the actual injector nozzle contains, as in Fig. 2 it can be seen, a nozzle needle 16, which is axially displaceably guided in the nozzle body 15 of the injector 9 and has a plurality of free surfaces 17 through which fuel from the nozzle Vorraum 18 can flow to the needle tip.
  • the nozzle needle 16 itself carries a collar 19, on which a compression spring 20 is supported, and immersed in a control chamber 21, which can be acted upon with fuel under pressure.
  • an inlet channel 22 via an inlet throttle 23 and a drain channel 24 via a discharge throttle 25 are connected, wherein the respective pressure built up in the control chamber 21 together with the force of the compression spring 20 holds the nozzle needle 16 in the closed position.
  • the pressure in the control chamber 21 is controlled by a control or solenoid valve 26 which is actuated by an electromagnet 27.
  • An opening of the solenoid valve 26 causes a drainage of the fuel via the outlet throttle 25, so that a decrease in the hydraulic holding force leads to the dipping into the control chamber 21 end face 28 of the nozzle needle 16 to open the nozzle needle 16. In this way, the fuel passes through the injection openings 29 into the combustion chamber of the engine.
  • a discharge throttle 25 and an inlet throttle 23 is provided, wherein the opening speed of the nozzle needle 16 is determined by the flow difference between the inlet and outlet throttle.
  • the solenoid valve 26 When the solenoid valve 26 is closed, the drainage path of the fuel is blocked by the outlet throttle 25 and re-established pressure in the control chamber 21 via the inlet throttle 23 and causes the closing of the nozzle needle 16.
  • the remaining reference numerals were made Fig. 1 accepted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (14)

  1. Procédé pour thermoréguler un injecteur d'un système d'injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne, dans lequel le carburant est refoulé par au moins une pompe de pré-alimentation à partir d'un réservoir jusqu'à au moins une pompe haute pression et le carburant haute pression refoulé par la pompe haute pression est acheminé jusqu'à l'injecteur, un accumulateur de carburant haute pression étant disposé à l'intérieur de l'injecteur et l'injecteur comprenant une buse d'injection avec une aiguille d'injection mobile axialement dans une pré-chambre de buse, laquelle aiguille d'injection pénètre dans une chambre de commande pouvant être alimentée en carburant haute pression, la pression de la chambre de commande étant commandée par le biais d'une soupape de commande ouvrant ou fermant au moins un conduit d'admission ou d'évacuation pour le carburant, caractérisé en ce que, pendant l'arrêt du moteur à combustion interne, une quantité partielle du carburant est dérivée en tant que quantité de balayage entre la pompe de pré-alimentation et la pompe haute pression, est guidée à travers un échangeur de chaleur pour chauffer le carburant et est acheminée jusqu'à l'accumulateur de carburant haute pression, de telle sorte que celui-ci soit parcouru par la quantité de balayage.
  2. Procédé selon la revendication 1, caractérisé en ce que le carburant est refoulé par la pompe de pré-alimentation à une surpression de 5-10 bars.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la quantité de balayage est dérivée de l'injecteur par le biais de raccords pour des conduites de carburant haute pression du système d'injection.
  4. Procédé selon l'une quelconque des revendications 1, 2 ou 3, caractérisé en ce que la quantité de balayage est renvoyée jusqu'au réservoir ou jusqu'à la pompe de pré-alimentation.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la quantité de balayage dérivée entre la pompe de pré-alimentation et la pompe haute pression est régulée.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'une quantité de balayage supplémentaire est acheminée directement jusqu'à la soupape de commande de l'injecteur.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la conduite d'alimentation pour la quantité de balayage jusqu'à l'accumulateur de carburant haute pression est fermée par une soupape anti-retour pendant le fonctionnement du moteur à combustion interne.
  8. Dispositif d'injection de carburant dans la chambre de combustion d'un moteur à combustion interne en particulier pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 7, comportant au moins une pompe de pré-alimentation (3) pour refouler le carburant à partir d'un réservoir (1), au moins une pompe haute pression (4) et au moins un injecteur (9), le carburant refoulé par la pompe de pré-alimentation (3) étant acheminé jusqu'à la pompe haute pression (4) et le carburant haute pression refoulé par la pompe haute pression (4) étant acheminé jusqu'à l'injecteur (9), un accumulateur de carburant haute pression (14) étant disposé à l'intérieur de l'injecteur (9) et l'injecteur (9) comprenant une buse d'injection avec une aiguille d'injection (16) mobile axialement dans une pré-chambre de buse, laquelle aiguille d'injection pénètre dans une chambre de commande (21) pouvant être alimentée en carburant haute pression, la pression de la chambre de commande étant commandée par le biais d'une soupape de commande (26) ouvrant ou fermant au moins un conduit d'admission ou d'évacuation (22, 24) pour le carburant, caractérisé en ce qu'une conduite de dérivation (11) pour une quantité de balayage est raccordée entre l'au moins une pompe de pré-alimentation (3) et l'au moins une pompe haute pression (4), la conduite de dérivation (11) traversant un échangeur de chaleur (10) et débouchant dans l'accumulateur de carburant haute pression (14) de l'injecteur (9), de telle sorte que celui-ci soit parcouru par la quantité de balayage.
  9. Dispositif selon la revendication 8, caractérisé en ce que la pompe de pré-alimentation (3) est réalisée pour refouler le carburant à 5-10 bars.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce qu'une pièce en T (8) est raccordée à l'injecteur (9), laquelle relie des conduites haute pression (7) à l'accumulateur de carburant haute pression (14) ou la pré-chambre de buse (21) d'un premier injecteur (9) et à la pièce en T (8) d'un autre injecteur (9).
  11. Dispositif selon l'une quelconque des revendications 8, 9 ou 10, caractérisé en ce que des conduites basse pression (15, 6) sont prévues pour le retour de la quantité de balayage jusqu'à la pompe de pré-alimentation (3).
  12. Dispositif selon l'une quelconque des revendications 8 à 11, caractérisé en ce qu'un étranglement et/ou une soupape de régulation pour la régulation de la quantité de balayage sont disposés dans la conduite de dérivation (11).
  13. Dispositif selon l'une quelconque des revendications 8 à 12, caractérisé en ce qu'un raccord pour une quantité de balayage supplémentaire, lequel est en liaison directe avec la soupape de commande (26) de l'injecteur (9), est disposé sur l'injecteur (9).
  14. Dispositif selon l'une quelconque des revendications 8 à 13, caractérisé en ce qu'une soupape anti-retour (13) est disposée dans la conduite de dérivation (11) pour la quantité de balayage, laquelle soupape anti-retour se ferme en sens inverse au sens d'acheminement pour la quantité de balayage.
EP11702387.9A 2010-01-19 2011-01-18 Procédé pour thermoréguler un injecteur d'une injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne Active EP2526283B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0006410A AT509405A1 (de) 2010-01-19 2010-01-19 Verfahren zum temperieren eines injektors einer einspritzung für das einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
PCT/AT2011/000031 WO2011088490A1 (fr) 2010-01-19 2011-01-18 Procédé pour thermoréguler un injecteur d'une injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP2526283A1 EP2526283A1 (fr) 2012-11-28
EP2526283B1 true EP2526283B1 (fr) 2015-03-18

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EP11702387.9A Active EP2526283B1 (fr) 2010-01-19 2011-01-18 Procédé pour thermoréguler un injecteur d'une injection pour l'injection de carburant dans la chambre de combustion d'un moteur à combustion interne

Country Status (7)

Country Link
US (1) US8635992B2 (fr)
EP (1) EP2526283B1 (fr)
JP (1) JP5674807B2 (fr)
KR (1) KR101398580B1 (fr)
CN (1) CN102713235B (fr)
AT (1) AT509405A1 (fr)
WO (1) WO2011088490A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017208400A1 (de) 2017-05-18 2018-11-22 Robert Bosch Gmbh Vorrichtung und Verfahren zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010031486A1 (de) * 2010-07-16 2012-01-19 Robert Bosch Gmbh Prüfstand für Fluidpumpen und Fluidinjektoren
AT512437B1 (de) * 2012-01-26 2014-03-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102012101293B4 (de) 2012-02-17 2017-12-07 L'orange Gmbh Kraftstoff-Einspritzvorrichtung für Schwerölmotoren
DE102013002758B4 (de) * 2013-02-19 2020-03-19 Woodward L'orange Gmbh Spülverfahren zur Durchführung mit einem Kraftstoffinjektor
DE102013212249A1 (de) * 2013-06-26 2014-12-31 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE102013013234A1 (de) * 2013-08-08 2015-02-12 Man Diesel & Turbo Se Injektor für eine Kraftstoffversorgungsanlage einer Brennkraftmaschine sowie Kraftstoffversorgungsanlage
DE102013014152B4 (de) * 2013-08-23 2021-03-18 Woodward L'orange Gmbh Spül-Start-Verfahren für einen Verbrennungsmotor und Spül-Start-System
AT516251B1 (de) * 2015-01-07 2016-04-15 Hoerbiger Kompressortech Hold Brenngaszuführungs- und Zündvorrichtung für einen Gasmotor
AT516250B1 (de) * 2015-01-07 2016-04-15 Hoerbiger Kompressortech Hold Brenngaszuführungs- und Zündvorrichtung für einen Gasmotor
DE102017129223A1 (de) 2017-12-08 2019-06-13 Keyou GmbH Modularer Injektor
US11674487B2 (en) 2021-06-15 2023-06-13 Caterpillar Inc. Check valve for a fuel injector

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067581A (en) * 1943-11-04 1962-12-11 Reggio Ferdinando Carlo Fuel supply system
US2747555A (en) * 1951-04-03 1956-05-29 Sulzer Ag Fuel supply system for internal combustion engines
US4377149A (en) * 1980-10-14 1983-03-22 Deere & Company Fuel temperature control system
US4372278A (en) * 1980-10-20 1983-02-08 Smith Rodney D High temperature and high pressure fuel injection apparatus for internal combustion engines
DE3107141A1 (de) * 1981-02-26 1982-09-09 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Anordnung zum kuehlen des kraftstoffs in einem betriebssystem eines dieselmotors mit einem geschlossenen einspritzkreislauf
DE3119050A1 (de) * 1981-05-05 1982-11-18 Gebrüder Sulzer AG, 8401 Winterthur "brennstoffeinspritzvorrichtung mit elektromagnetisch betaetigtem umschaltventil"
US4440138A (en) * 1982-02-16 1984-04-03 Stanadyne, Inc. Diesel engine fuel system
GB2123086A (en) * 1982-07-08 1984-01-25 Lucas Ind Plc Fuel supply system for internal combustion engines
GB8406270D0 (en) * 1984-03-09 1984-04-11 Lucas Ind Plc Fuel system
DE3631579C1 (de) * 1986-09-17 1992-02-20 Daimler Benz Ag Niederdruckkraftstoffkreislauf mit Kraftstoffvorwaermung fuer eine luftverdichtende Einspritzbrennkraftmaschine,insbesondere fuer Nutzfahrzeuge
JP3615260B2 (ja) * 1995-03-07 2005-02-02 川崎重工業株式会社 ディーゼル機関の燃料供給装置
US5794598A (en) * 1996-06-21 1998-08-18 Stanadyne Automotive Corp. Fuel circuit and circulation method for fuel injection system
AU6769598A (en) 1997-03-31 1998-10-22 Allied-Signal Inc. Turbocharger integral fluid temperature management system
JP2000130284A (ja) * 1998-10-28 2000-05-09 Nissan Motor Co Ltd ディーゼルエンジンの燃料噴射装置
JP3758879B2 (ja) * 1999-02-16 2006-03-22 三菱ふそうトラック・バス株式会社 蓄圧式燃料噴射制御装置
DE10358266B4 (de) 2003-12-11 2008-06-05 L'orange Gmbh Kraftstoff-Einspritzsystem für Brennkraftmaschinen
WO2006081829A1 (fr) 2005-02-02 2006-08-10 Man Diesel A/S Gros moteur diesel deux temps a soupapes d'echappement hydrauliques
KR20070062171A (ko) * 2005-12-12 2007-06-15 현대자동차주식회사 커먼레일의 고압을 이용한 밸브
EP1977106B1 (fr) * 2006-04-12 2009-09-30 MAN B & W Diesel A/S Gros moteur diesel deux temps a balayage continu et a crosse
JP4121531B2 (ja) * 2006-05-12 2008-07-23 エムエーエヌ・ディーゼル・エーエス 大型２サイクルディーゼルエンジンのための燃料循環式コモンレール燃料噴射装置
JP4793162B2 (ja) * 2006-08-11 2011-10-12 株式会社デンソー 超臨界燃料用燃料噴射装置
DE102007011789A1 (de) 2007-03-12 2008-09-18 Robert Bosch Gmbh Kraftstoffinjektor
AT505666B1 (de) 2007-08-20 2009-03-15 Bosch Gmbh Robert Verfahren und vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017208400A1 (de) 2017-05-18 2018-11-22 Robert Bosch Gmbh Vorrichtung und Verfahren zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine

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US20120291759A1 (en) 2012-11-22
KR101398580B1 (ko) 2014-05-23
CN102713235A (zh) 2012-10-03
JP2013512388A (ja) 2013-04-11
JP5674807B2 (ja) 2015-02-25
WO2011088490A1 (fr) 2011-07-28
EP2526283A1 (fr) 2012-11-28
CN102713235B (zh) 2015-11-25
AT509405A1 (de) 2011-08-15
US8635992B2 (en) 2014-01-28

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