EP3256714A1 - Dispositif d'injection pour moteur à combustion interne - Google Patents

Dispositif d'injection pour moteur à combustion interne

Info

Publication number
EP3256714A1
EP3256714A1 EP16701115.4A EP16701115A EP3256714A1 EP 3256714 A1 EP3256714 A1 EP 3256714A1 EP 16701115 A EP16701115 A EP 16701115A EP 3256714 A1 EP3256714 A1 EP 3256714A1
Authority
EP
European Patent Office
Prior art keywords
fuel
injection valve
injection
injecting
internal combustion
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.)
Withdrawn
Application number
EP16701115.4A
Other languages
German (de)
English (en)
Inventor
Thomas Pauer
Andreas Posselt
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 EP3256714A1 publication Critical patent/EP3256714A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F02D19/061—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit

Definitions

  • the invention relates to an injection device for an internal combustion engine according to the preamble of claim 1.
  • Injection devices for an internal combustion engine for injecting a fuel into an intake pipe or for injecting a fuel directly into the combustion chamber are well known.
  • water is injected via a further injection valve.
  • the consumption of the internal combustion engine can be reduced by a further injection valve for the injection of water, but no reduction of the particle emission is achieved at partial load of the internal combustion engine.
  • the injection device according to the invention for an internal combustion engine has the advantage over the prior art that both a reduction in fuel consumption during operation of the internal combustion engine at full load and a reduction of particulate emissions during operation of the internal combustion engine is achieved at partial load.
  • the reduction in fuel consumption during operation of the internal combustion engine is achieved by improvements in the efficiency of the basic engine and in that at full load of the internal combustion engine for knock reduction water is injected into an intake manifold.
  • the internal combustion engine has a first injection path for injecting a fuel, a second injection path for injecting water and a third injection path for injecting either the force Stoffs (ie, the same fuel that is used in the first injection path) or for injection of another fuel.
  • the reduction of the particulate emission during operation of the internal combustion engine in partial load is made possible by the presence of a third injection path for injecting the fuel or the further fuel.
  • the injection device according to the invention advantageously allows both a reduction of the fuel consumption of the internal combustion engine by optimized full load and a reduction of the particle emission at partial load of the internal combustion engine. Since both a reduction in fuel consumption and a reduction in particulate emissions are required by law in many regions, there is a great need here.
  • the internal combustion engine is preferably designed as a gasoline engine for a motor vehicle, preferably an automobile.
  • the internal combustion engine preferably comprises more than one cylinder, wherein each of the cylinders comprises a combustion chamber with at least one first and one second injection valve.
  • the injector includes the first injector for direct injection into the combustion chamber and at least the second injector for injection into the intake manifold, the second injector being for injecting water.
  • the second injection valve is provided that the second injection valve:
  • ⁇ is configured to selectively inject either water or the fuel or other fuel, or
  • - Is configured to simultaneously inject both water and fuel or other fuel.
  • the injector according to the present invention has three injection paths: a first injection path for injecting a fuel, a second injection path for injecting water, and a third injection path for injecting a fuel or one different thereof other fuel.
  • the three injection paths are realized by the injection device having a first injection valve for injecting a fuel directly into a combustion chamber and a second injection valve for selectively injecting either water or the fuel (or another fuel).
  • the first injection path is realized by the first injection valve
  • both the second injection path and the third injection path are realized by the second injection valve (but at different times) by selectively injecting water via the second injection valve (at a first time) or else Fuel is injected via the second injector (at a second time), with either fuel (or used in the first injector) or another fuel being injected as such fuel.
  • the three injection paths are realized in that the second injection valve is configured for simultaneous injection - on the one hand - of water and - on the other hand - of the fuel or of the further fuel, d. H. the second injection path and the third injection path are realized - at least partially - simultaneously by the second injection valve by injecting a water-fuel mixture through the second injection valve.
  • the second injection valve is designed in particular as a single injector (single injector) or as a double injector (twin injector).
  • the injection device comprises a third injection valve for injecting the fuel (used in the first injection valve) or the further fuel or a third fuel into the intake pipe or into a further intake pipe.
  • the first injection path is realized by the first injection valve
  • the second injection path is realized by the second injection valve
  • the third injection path is realized by the third injection valve.
  • the fuel is injected directly into the combustion chamber via the first injection valve and water (ie only water and no fuel) is injected via the second injection valve, while the fuel (or fuel used in the first injection valve) is injected via the third injection valve. tere fuel is injected.
  • the fuel is injected directly into the combustion chamber via the first injection valve and a third fuel is injected via the third injection valve, while either water and the further one either via the second injection valve Fuel or at the same time both water and the other fuel is injected.
  • first injection valve is a main injection valve and both the second and third injection valves are a secondary injection valve
  • the first and second injection valves are a secondary injection valve and the third injection valve is a main injection valve
  • the main injection valve injecting a larger amount of fuel and / or having a longer operating time than the secondary injection valve.
  • the particulate emission can be reduced, since the injected fuel quantity better to those in the can be adapted to the corresponding load situation required amount of fuel and injector-specific design features for improved spray treatment can be used.
  • the operating strategy and the system design and supply of the fuel, the further fuel and / or the water and the supply of the third fuel can be adapted to segment-specific or market-specific requirements.
  • the fuel is a gasoline fuel and / or a FlexFuel fuel, wherein the first injection valve as a main injection valve for injecting the fuel and the second injection valve as a secondary injection valve for selectively injecting the fuel or for injecting configured by water.
  • the first injection path is realized by the first injection valve and both the second injection path and the third injection path are realized by the second injection valve (but at different times) by optionally injecting water via the second injection valve (in particular at a point in time) the internal combustion engine is at full load operating point or at a full load-close operating point - in particular for knock reduction) or the fuel is injected via the second injection valve (in particular at a time when the internal combustion engine is in a partial load operating point - in particular for particle reduction).
  • a coupled control of the second injection valve to be realized via a shut-off valve and the activation of a water pump.
  • the design of the second injection valve must be done for both media.
  • FlexFuel fuels are understood in particular to be fuels according to the names E0-E85, E22-E100 or M15-M100.
  • the second injection valve can be used according to this embodiment, in particular for reducing emissions in the cold start / warm-up area. According to a further preferred embodiment, it is specifically provided that
  • the fuel is a gasoline fuel and / or a FlexFuel fuel or the fuel is a CNG fuel or an LPG fuel,
  • the first injector is configured to inject the fuel
  • the second injector is configured to inject water
  • the third injector is configured to inject the fuel.
  • the operation of the third injection valve and the operation of the second injection valve is realized autonomously in accordance with a decoupled control;
  • a specific design of the third injection valve and the second injection valve is possible.
  • the third injection valve is used in part-load operation for particle reduction and possibly in a full load operating point or at a full load-close operating point to increase the amount of fuel, while the second injection valve for knock reduction in a full load operating point or in a full-load-close operating point of the internal combustion engine is used.
  • the third injection valve according to this embodiment can be used in particular for reducing emissions in the cold start / warm-up area.
  • the fuel is a gasoline fuel and / or a FlexFuel
  • Fuel is and the other fuel is CNG (compressed natural gas) or LPG (liquefied natural gas) fuel
  • the fuel is a CNG fuel or an LPG fuel and the further fuel is a gasoline fuel and / or a FlexFuel fuel
  • the first injection valve is configured to inject the fuel
  • the second injection valve for injecting water is configured
  • the third injection valve is configured to inject the further fuel.
  • the further fuel is an ethanol fuel and / or a methanol fuel and
  • the third fuel is a CNG fuel or an LPG fuel or a
  • the fuel is a CNG fuel or an LPG fuel or an alcohol fuel and
  • the further fuel is an ethanol fuel and / or a methanol
  • the third fuel is a gasoline fuel and / or a FlexFuel fuel
  • first injection valve is configured to inject the fuel
  • third injection valve is configured to inject the third fuel
  • - Is configured for selectively injecting the other fuel or for injecting water or
  • a control unit controls the injection quantity of the first injection valve, the injection quantity of the second injection valve and / or the injection quantity of the third injection valve as a function of the load of the internal combustion engine and further operating parameters of the internal combustion engine.
  • the fuel, the further fuel and the third fuel are one of the following fuels:
  • CNG - natural gas
  • Alcohols are preferably methanol and / or ethanol, or
  • FIG. 1 shows a schematic representation of an injection device for an internal combustion engine according to a first exemplary embodiment of the present invention.
  • FIG. 2 shows a schematic representation of an injection device for an internal combustion engine according to a second exemplary embodiment of the present invention.
  • FIG. 3 shows a schematic representation of an injection device for an internal combustion engine according to a third exemplary embodiment of the present invention.
  • the injection devices 1 illustrated in FIGS. 1 to 3 each have-for each cylinder of the internal combustion engine-a first injection valve 20 and a second injection valve 30.
  • the internal combustion engine comprises a plurality of cylinders, for example two, three, four, five, six, eight, ten or twelve cylinders.
  • four cylinders 50 of the internal combustion engine are exemplarily indicated, but these are not individually provided with different reference numerals.
  • Each of the cylinders 50 has a combustion chamber with at least one associated intake pipe.
  • the respective intake pipe or suction pipe of each of the four cylinders 50 is designated in FIGS. 1 to 3 by reference numbers 51, 52, 53 and 54, these reference numbers being subsumed by the reference number 50 '.
  • the respective first injection valve 20 of each of the four cylinders 50 is designated in FIGS. 1 to 3 by the reference numerals 21, 22, 23 and 24, these reference symbols being summarized by the reference numeral 20.
  • the respective second injection valve 30 of each of the four cylinders 50 is designated by the reference numerals 31, 32, 33 and 34 in FIGS. 1 to 3, these reference symbols being summarized by the reference numeral 30.
  • the respective first injection valves 21, 22, 23, 24 are associated in particular with a first pressure accumulator 20 ', from which a stored medium (fuel) is supplied to the respective first injection valves 21, 22, 23, 24.
  • the respective second injection valves 31, 32, 33, 34 in particular a second pressure accumulator 30 'assigned, from which a stored medium (water and / or either the fuel or another fuel) the respective second injection valves 31, 32, 33, 34 is supplied.
  • 1 shows an injection device 1 for an internal combustion engine according to a first exemplary embodiment of the present invention.
  • the internal combustion engine or the injection device 1 comprises, in addition to the first and second injection valves 20, 30, a third injection valve 40.
  • the respective third injection valves 41, 42, 43, 44 are associated in particular with a third pressure accumulator 40 ', from which a stored medium (fuel or further fuel) is supplied to the respective third injection valves 41, 42, 43, 44.
  • the internal combustion engine or the injection device 1 comprises a first injection path 6 for injecting fuel (for example of gasoline and / or FlexFuel or also a CNG fuel or an LPG fuel) by means of the
  • the injector 1 further includes a second injection path 7 for injecting water into the respective intake pipe 50 'of each of the cylinders 50 and a third injection path 8 for injecting the fuel (For example, of gasoline and / or FlexFuel or even a CNG fuel or LPG fuel) directly into an intake manifold.
  • the fuel is supplied to the first injection path 6 and the third injection path 8 by means of a fuel pump 9.
  • the second injection path 7 is supplied by means of a water pump 10 water.
  • the first injection valve 20 is, in particular, a main injection valve for directly injecting the fuel (for example gasoline and / or FlexFuel or even a CNG fuel or LPG fuel) into the combustion chamber of a cylinder 50
  • injection valve 30 is, in particular, a secondary injection valve for injecting water into the intake pipe of cylinder 50
  • the injection valve 40 is in particular a secondary injection valve for injecting the fuel (for example gasoline and / or FlexFuel or even a CNG fuel or LPG fuel) into the intake pipe of the cylinder 50 or into a further intake pipe (FIG. not shown) of the cylinder 50.
  • the cylinder 50 additionally comprises a further second injection valve, which is a secondary injection valve for injecting water into the intake pipe or into the further intake pipe, in particular as a twin injector the second injection valve.
  • a control unit controls the injection quantity of the first injection valve 20, the injection quantity of the second injection valve 30 and / or the injection quantity of the third injection valve 40 as a function of the load of the internal combustion engine and further operating parameters of the internal combustion engine and / or FlexFuel) are operated autonomously after decoupled control.
  • the third injection valve 40 is preferably switched on.
  • the third injection valve 40 is preferably switched on.
  • an increase in the injected amount of the fuel eg. Of gasoline and / or FlexFuel or even a CNG fuel or an LPG fuel
  • the second injection valve 30 is switched on.
  • the combustion chamber is thereby cooled, so that the efficiency of the internal combustion engine is increased advantageously in a suitable manner and the anti-knocking strength increases.
  • the third injection valve 40 is preferably switched on. This achieves an emission reduction.
  • the internal combustion engine or the injection device 1 also comprises the first, second and third injection paths 6, 7, 8; in contrast to the embodiment shown in Figure 1 is However, not the same fuel but different fuels injected via the first and the third injection valve 20, 40.
  • the first injection path is provided for injecting fuel by means of the first injection valve 20 directly into the combustion chamber of a cylinder 50.
  • the second injection path 7 is provided for injecting water into the intake pipe 50 'of the cylinder 50.
  • the third injection path 8 is provided for injecting another fuel (different from the first fuel) into either the intake pipe or another intake pipe.
  • the (injected via the first injection valve 20) fuel is a gasoline fuel and / or a FlexFuel fuel and that (injected via the second injection valve 30) further fuel CNG fuel or an LPG fuel.
  • the (injected via the first injection valve 20) fuel is a CNG fuel or an LPG fuel and that (injected via the second injector 30) further fuel is a gasoline fuel and / or a FlexFuel fuel is.
  • the internal combustion engine comprises the third injection valve 40.
  • the first injection valve 20 is, in particular, a base injection valve for injecting a fuel (for example gasoline and / or FlexFuel) directly into the combustion chamber.
  • the second injector 30 is a sub injector for injecting water into the intake manifold.
  • the third injection valve 40 is a base injection valve for injecting the further fuel (eg, LPG or natural gas) into the intake pipe or into another intake pipe of the cylinder 50.
  • the cylinder 50 preferably further includes another second injection valve, which is this is a secondary injection valve for injecting water into the intake pipe or into the further intake pipe, in particular as a twin injector with the second injection valve.
  • the internal combustion engine comprises a first injection path 6 for injecting a fuel (eg gasoline and / or FlexFuel) directly into the combustion chamber, a second injection path 7 for injecting water into an intake pipe and a third injection path 8 for injecting the fuel (eg. Gasoline and FlexFuel) into the intake manifold.
  • a fuel eg gasoline and / or FlexFuel
  • the fuel is supplied to the first injection path 6 and the third injection path 8 by means of a fuel pump 9.
  • the second injection path 7 is supplied by means of a water pump 10 water.
  • the third injection path 8 is separated from the first injection path 6 by means of a shut-off valve 11.
  • the first injector 2 is a main injector for directly injecting the fuel (eg gasoline and FlexFuel) into the combustion chamber.
  • the second injector 30 is a sub injector for injecting either water or fuel into the intake manifold.
  • a control unit controls depending on the load of the internal combustion engine and further operating parameters of the internal combustion engine, the injection quantity of the first injection valve 20 and the injection quantity of the second injection valve 30.
  • the sub-injector (second injector 30) is configured to selectively inject either water or fuel.
  • the second injection valve 30 is preferably switched on, wherein the fuel is injected by means of the second injection valve 30.
  • FIG. 3 shows an injection device 1 for an internal combustion engine according to a third exemplary embodiment of the present invention. According to the embodiment shown in FIG.
  • the internal combustion engine or the injection device 1 comprises, in addition to the first and second injection valves 20, 30, a third injection valve 40, again the respective third injection valve 40 of each cylinder 50 in FIG 41, 42, 43 and 44, respectively, and wherein these reference numerals are summarized by the reference numeral 40.
  • the respective third injection valves 41, 42, 43, 44 according to the invention in particular a third pressure accumulator 40 'associated, from which a stored medium (third fuel) the respective third injection valves 41, 42, 43, 44 is supplied.
  • the internal combustion engine or the injection device 1 comprises a first injection path 6 for injecting fuel by means of the first injection valve 20 directly into the combustion chamber of a cylinder 50.
  • the internal combustion engine or the injection device 1 comprises a second injection path 7 for the alternative (optional) or also combined injection (by means of the second injection valve 30) of water or another fuel into the respective intake pipe 50 'of a cylinder 50 and a third injection path 8 for injecting (by means of the third injection valve 40) a third fuel directly into the intake pipe of the cylinder 50 or in another intake pipe of the cylinder 50.
  • fuel directly injected into the combustion chamber via the first injection valve 20
  • fuel is a gasoline fuel and / or a FlexFuel fuel or a CNG fuel or an LPG fuel or an alcohol L fuel provided.
  • an ethanol fuel and / or a methanol fuel is provided.
  • a third fuel injected by the third injector 40
  • a CNG fuel or an LPG fuel or an alcohol fuel particularly, when the fuel is a gasoline fuel and / or a FlexFuel fuel is used
  • a gasoline fuel and / or a FlexFuel fuel is provided (especially when the fuel is a CNG fuel or an LPG fuel or an alcohol fuel is used).
  • the fuel is supplied to the first injection path 6 by means of a fuel pump 9.
  • the second injection path 7 is supplied by means of a water pump 10 water or by means of another fuel pump 12 of the further fuel.
  • the third injection path 8 is supplied with the third fuel by means of a third fuel pump 13.
  • the first injection valve 20 is a main injection valve for directly injecting the fuel into the combustion chamber.
  • the second injection valve 30 is, in particular, a secondary injection valve for injecting either water or the further fuel into the intake manifold.
  • the third injection valve 40 is in particular a secondary injection valve for injecting the third fuel into the intake pipe or into the further intake pipe.
  • a control unit controls, depending on the load of the internal combustion engine and other operating parameters of the internal combustion engine, the injection quantity of the first injection valve 20, the injection quantity of the second injection valve 30 and the injection quantity of the third injection valve 40. Depending on the load and further operating parameters, the injection of either either water or the further fuel by means of the second injection valve 30. Furthermore, the third fuel is injected via the third injection valve 40 as a function of the operating parameters.
  • the first injection valve 20 is a base injection valve for directly injecting a fuel into the combustion chamber.
  • the second injector 30 is a sub injector for injecting water into the intake manifold.
  • the third injection valve 40 is a base injection valve for injecting the fuel or the other fuel into the intake pipe or into another intake pipe.
  • the cylinder 50 preferably comprises additionally a further second injection valve and / or a further third injection valve, wherein the further third injection valve is a base injection valve for injecting the fuel or the further fuel into the intake pipe or into the further intake pipe, in particular as a twin injector with the third Injection valve, wherein the further second injection valve is a secondary injection valve for injecting water into the intake pipe or into the further intake pipe, in particular as a twin injector with the second injection valve is.
  • the further third injection valve is a base injection valve for injecting the fuel or the further fuel into the intake pipe or into the further intake pipe, in particular as a twin injector with the third Injection valve
  • the further second injection valve is a secondary injection valve for injecting water into the intake pipe or into the further intake pipe, in particular as a twin injector with the second injection valve is.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

Dispositif d'injection pour un moteur à combustion interne, ledit moteur à combustion interne présentant une chambre de combustion et au moins un tube d'admission. Le dispositif d'injection comporte un premier injecteur pour injecter un carburant directement dans la chambre de combustion, et un second injecteur pour l'injection dans le tube d'admission. Le dispositif d'injection est caractérisé en ce que le second injecteur est conçu pour injecter de l'eau.
EP16701115.4A 2015-02-09 2016-01-19 Dispositif d'injection pour moteur à combustion interne Withdrawn EP3256714A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015202218.8A DE102015202218A1 (de) 2015-02-09 2015-02-09 Einspritzvorrichtung für eine Brennkraftmaschine
PCT/EP2016/051008 WO2016128185A1 (fr) 2015-02-09 2016-01-19 Dispositif d'injection pour moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP3256714A1 true EP3256714A1 (fr) 2017-12-20

Family

ID=55182313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16701115.4A Withdrawn EP3256714A1 (fr) 2015-02-09 2016-01-19 Dispositif d'injection pour moteur à combustion interne

Country Status (7)

Country Link
US (1) US20180010535A1 (fr)
EP (1) EP3256714A1 (fr)
JP (1) JP6577040B2 (fr)
KR (1) KR20170113569A (fr)
CN (1) CN107208582A (fr)
DE (1) DE102015202218A1 (fr)
WO (1) WO2016128185A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016203027A1 (de) * 2016-02-26 2017-08-31 Bayerische Motoren Werke Aktiengesellschaft Brennkraftmaschine
DE102016213595A1 (de) * 2016-07-25 2018-01-25 Robert Bosch Gmbh Kraftstofffördereinrichtung für eine Brennkraftmaschine, sowie ein Verfahren zur Förderung von Kraftstoff in einer Kraftstofffördereinrichtung
US9976502B2 (en) * 2016-08-02 2018-05-22 Ford Global Technologies, Llc Methods and system for injecting water at different groups of cylinders of an engine
DE102016222066A1 (de) * 2016-11-10 2018-05-17 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose einer Kühlmitteleinspritzung eines Verbrennungsmotors
DE102017208022A1 (de) * 2017-05-12 2018-11-15 Robert Bosch Gmbh Einspritzanordnung zur Einspritzung von Wasser und Kraftstoff und Verfahren zum Betreiben einer Einspritzanordnung
DE102017217201B3 (de) 2017-09-27 2019-01-17 Ford Global Technologies, Llc Direkteinspritzende fremdgezündete Brennkraftmaschine mit Saugrohreinspritzung zum Einspritzen eines Zusatzmediums und Verfahren zum Betreiben einer derartigen Brennkraftmaschine
FR3077340B1 (fr) * 2018-01-29 2022-07-15 Plastic Omnium Advanced Innovation & Res Systeme d'injection d'une solution aqueuse dans un moteur a injection
DE102018208008A1 (de) * 2018-05-22 2019-11-28 Robert Bosch Gmbh Kühlmitteldosiersystem, Verfahren zur Steuerung eines Kühlmitteldosiersystems
DE102018209122A1 (de) * 2018-06-08 2019-12-12 Robert Bosch Gmbh Brennkraftmaschine mit vereinfachtem Wassereinspritzsystem
KR102256138B1 (ko) * 2020-06-30 2021-05-25 주식회사 코니테크놀로지 액상연료용 mpi 인젝터와 gdi 인젝터를 구비한 바이퓨얼 연료공급시스템
KR102296562B1 (ko) * 2021-07-16 2021-09-01 (주) 로 가솔린-가스 이중 연료 공급 시스템에서 gdi 가솔린 엔진의 고압연료레일 압력제어장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230683B1 (en) * 1997-08-22 2001-05-15 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02181060A (ja) * 1988-12-29 1990-07-13 Toyota Central Res & Dev Lab Inc 内燃機関の冷却用液体供給量制御装置
EP0459374B1 (fr) * 1990-06-01 1995-02-08 Mazda Motor Corporation Système d'aspiration pour un moteur
US5148776A (en) * 1991-09-23 1992-09-22 Connor Michael J Coordinated water and fuel injection system
US5713336A (en) * 1995-01-24 1998-02-03 Woodward Governor Company Method and apparatus for providing multipoint gaseous fuel injection to an internal combustion engine
JP3322578B2 (ja) * 1996-10-09 2002-09-09 三菱重工業株式会社 二流体噴射装置
US5875743A (en) * 1997-07-28 1999-03-02 Southwest Research Institute Apparatus and method for reducing emissions in a dual combustion mode diesel engine
US5890459A (en) * 1997-09-12 1999-04-06 Southwest Research Institute System and method for a dual fuel, direct injection combustion engine
EP1138901A3 (fr) * 2000-03-29 2004-04-07 Hitachi, Ltd. Système d'alimentation en carburant pour moteur à combustion interne
JP2005220887A (ja) * 2004-02-09 2005-08-18 Toyota Motor Corp 内燃機関の制御装置
DE102004011282A1 (de) * 2004-03-09 2005-09-29 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
JP4315979B2 (ja) * 2004-04-02 2009-08-19 ヤマハ発動機株式会社 燃料供給装置及びそれを備えた車両
JP4552694B2 (ja) * 2005-03-02 2010-09-29 トヨタ自動車株式会社 車両の燃料供給装置
US7357101B2 (en) * 2005-11-30 2008-04-15 Ford Global Technologies, Llc Engine system for multi-fluid operation
US7395786B2 (en) * 2005-11-30 2008-07-08 Ford Global Technologies, Llc Warm up strategy for ethanol direct injection plus gasoline port fuel injection
US20070131180A1 (en) * 2005-12-13 2007-06-14 The University Of Chicago Water and/or alcohol water secondary injection system for diesel engines
JP2007187112A (ja) * 2006-01-13 2007-07-26 Honda Motor Co Ltd 予混合圧縮着火内燃機関
US7549408B2 (en) * 2006-11-20 2009-06-23 Ford Global Technologies, Llc Flex-fuel variable displacement engine control system and method
US7574983B2 (en) * 2006-12-01 2009-08-18 Gm Global Technology Operations, Inc. Method and apparatus for extending high load operation in a homogeneous charge compression ignition engine
JP2009138661A (ja) * 2007-12-07 2009-06-25 Nissan Motor Co Ltd エンジンの水噴射制御装置及び水噴射制御方法
US7712451B2 (en) * 2008-05-07 2010-05-11 Visteon Global Technologies, Inc. Multi-fuel multi-injection system for an internal combustion engine
CN101907025A (zh) * 2010-06-28 2010-12-08 大连理工大学 内燃机多燃料燃烧系统
US8483937B2 (en) * 2010-07-29 2013-07-09 Ford Global Technologies, Llc Method and system for controlling fuel usage
JP2012057470A (ja) * 2010-09-03 2012-03-22 Toyota Motor Corp 内燃機関
JP5693189B2 (ja) * 2010-12-08 2015-04-01 三菱重工業株式会社 内燃機関の燃料噴射装置および内燃機関の燃料噴射方法
DE102010064182A1 (de) * 2010-12-27 2012-06-28 Robert Bosch Gmbh Einspritzvorrichtung, Brennkraftmaschine und Verfahren zum Betrieb einer Einspritzvorrichtung
KR101973116B1 (ko) * 2011-04-11 2019-04-26 노스트럼 에너지 피티이. 리미티드 내부 냉각 고압축 희박-연소 내연 기관
JP5881971B2 (ja) * 2011-04-22 2016-03-09 川崎重工業株式会社 ガスエンジンの制御装置及び制御方法
DE102011080346A1 (de) * 2011-08-03 2013-02-07 Robert Bosch Gmbh Einspritzvorrichtung, Brennkraftmaschine und Verfahren zum Betrieb einer Brennkraftmaschine
US9097224B2 (en) * 2011-08-15 2015-08-04 GM Global Technology Operations LLC Multi-fuel vehicle fuel control systems and methods
JP2013113145A (ja) * 2011-11-25 2013-06-10 Toyota Motor Corp 内燃機関の制御装置
US20140032081A1 (en) * 2012-07-27 2014-01-30 Caterpillar Inc. Dual Mode Engine Using Two or More Fuels and Method for Operating Such Engine
US9038582B2 (en) * 2012-07-27 2015-05-26 Caterpillar Inc. Split-cycle, reactivity controlled compression ignition engine and method
US9435288B2 (en) * 2012-12-07 2016-09-06 Ethanol Boosting Systems, Llc Port injection system for reduction of particulates from turbocharged direct injection gasoline engines
EP3327277A1 (fr) * 2013-01-17 2018-05-30 Nirmal Mulye Procédé de fonctionnement d'un moteur à combustion interne
US9016244B2 (en) * 2013-04-23 2015-04-28 Ford Global Technologies, Llc Engine control for catalyst regeneration
US8950366B2 (en) * 2013-05-07 2015-02-10 Ford Global Technologies, Llc Method for reducing valve recession in gaseous fuel engines
US9624872B2 (en) * 2013-05-07 2017-04-18 Ford Global Technologies, Llc Method for reducing valve recession in gaseous fuel engines
GB201309124D0 (en) * 2013-05-21 2013-07-03 Delphi Tech Holding Sarl Fuel Injector
US9453474B2 (en) * 2013-06-12 2016-09-27 Ford Global Technologies, Llc Method for operating a direct fuel injection system
US9234486B2 (en) * 2013-08-15 2016-01-12 General Electric Company Method and systems for a leakage passageway of a fuel injector
MX367760B (es) * 2014-08-21 2019-09-05 Nissan Motor Dispositivo de control de inyección de combustible y método de control de inyección de combustible para un motor de combustión interna.
JP6308111B2 (ja) * 2014-11-21 2018-04-11 トヨタ自動車株式会社 車両の制御装置
US9752530B2 (en) * 2014-12-15 2017-09-05 Ford Global Technologies, Llc Methods and systems for fixed and variable pressure fuel injection
US9523326B2 (en) * 2014-12-22 2016-12-20 Ford Global Technologies, Llc Method for direct injection of supercritical fuels
DE102015200455B4 (de) * 2015-01-14 2018-01-25 Ford Global Technologies, Llc Motor, Kraftfahrzeug, Einspritzverfahren
US10100767B2 (en) * 2015-06-08 2018-10-16 Ford Global Technologies, Llc Method and system for engine cold-start control
US9856830B2 (en) * 2016-01-08 2018-01-02 Ford Global Technologies, Llc System and methods for reducing vehicle evaporative emissions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230683B1 (en) * 1997-08-22 2001-05-15 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control

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