WO2013107972A1 - Dispositif d'allumage par étincelle et stratification haute-pression pour moteur à combustion interne - Google Patents
Dispositif d'allumage par étincelle et stratification haute-pression pour moteur à combustion interne Download PDFInfo
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- WO2013107972A1 WO2013107972A1 PCT/FR2013/050082 FR2013050082W WO2013107972A1 WO 2013107972 A1 WO2013107972 A1 WO 2013107972A1 FR 2013050082 W FR2013050082 W FR 2013050082W WO 2013107972 A1 WO2013107972 A1 WO 2013107972A1
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- Prior art keywords
- internal combustion
- combustion engine
- lamination
- valve
- chamber
- Prior art date
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Classifications
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- 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
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
- F02B17/005—Engines characterised by means for effecting stratification of charge in cylinders having direct injection in the combustion chamber
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- 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
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0057—Specific combustion modes
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- 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
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
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- 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
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
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- 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
- F02D41/0002—Controlling intake air
- F02D2041/0015—Controlling intake air for engines with means for controlling swirl or tumble flow, e.g. by using swirl valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the subject of the present invention is a high-pressure spark ignition and stratification device for a highly-diluted charge-reciprocating internal combustion engine with pre-cooled exhaust gas reclearing means, referred to as "cooled external EGR" means.
- thermodynamic efficiency of reciprocating internal combustion engines depends on a number of factors, firstly, the duration and timing of the combustion intended to raise the temperature of the gases trapped in the combustion chamber after they have been previously secondly, the heat losses of said gz in contact with internal walls dud t engine and thirdly, the rate of expansion of said gas, said detent allowing that tesdts gas exert a thrust on the piston éet engine so as to convert into mechanical work the heat energy released by said combustion.
- the efficiency of a reciprocating internal combustion engine is higher as the positive work produced on the piston by the compression-expansion of the gases is important, and at the same time, the negative - or resistant - work produced by the input into said motor and the output of the engine desdis gz and that produced by the engine dudlf mechanism and its accessories is low.
- the fuel mixture introduced into the cylinder of the engine burn rapidly, close to the top dead center of the piston of the engine, that is to say, at almost constant volume. O to the rest ra so long that the gas temperature does not dyed telemeri higher values than the heat exchanges between said gases and the walls of the engine combustion chamber Internal becoming exeessis. This also holds true îar ⁇ t the pressure gradient generated by the combustion ⁇ does not lead to excessive noise nor comes from rattling.
- rattling is a spontaneous combustion of gases ; . It appears after a certain time, under the combined effect of pressure and temperature, and produces high pressure waves of pressure which, too, tend to increase the heat exchange between said ga and iesdifes walls including detaching the insulating air layer that covers the surface of said walls. Knocking is thus an undesirable phenomenon which reduces the efficiency of the fire engine and which also tends to damage the internal organs both by thermal overload and mechanical overload.
- the combustion rate is determined in particular by the quality of the diesel injection, and by the cetane number of said gas.
- CAI or HCCI the compression ratio, the initial temperature of the fuel mixture and its burned gas content, the characteristics of the fuel used and the homogeneity of the charge are all factors which determine the temperature and the speed of combustion. .
- the speed of said combustion determines the release law. of energy ordinarily expressed in degrees of rotation of the crankshaft between start and end of combustion, and following a curve which represents the cumulative fraction of fuel burned as a function of the angular position of the crankshaft, degree by degree.
- the two exchanges are weaker as the difference in temperature between the two gases and the said walls is small, that little or no turbulent turbulence increases the power of said exchanges in addition to those resulting from the simple conduction thermal and radiation, and that the voluminal mass of said gases is low.
- one alternative consists in stratifying said charge, that is to say, in producing an air-fuel mixture bag.
- the fuel bag is centered around the ignition point of the engine, said bag being surrounded by a fuel-poor mixture as it is strongly diluted with fresh air and / or gapping in proposals such that said lean mixture remains mostly burnable.
- Said pocket is formed in particular by the movements of the ga which take place inside the combustion chamber of said engine, said movements being notably induced by the geometry of the intake ducts: dudft engine and by that of the walls of said chamber, as well as dynamically q and the shape of the jet of fuel injected directly into said chamber.
- said charge thus laminated must contain enough oxygen for its portion s killed around the ignition point to ensure the proper start of combustion, and enough oxygen for its remaining part to ensure the proper development said combustion and its propagation to the entire volume of the combustion chamber of the engine, including in areas poor in fuel.
- Another problem related to the stratified load is its operating range, which is too limited at low loads, which limits its efficiency in reducing the load. consumption of motor vehicles in current use, especially those with a small engine weight relative to their weight.
- the CAI or HCC! It only works at relatively low loads, which limits its effectiveness in reducing the consumption of motor vehicles in everyday use, particularly those with a small displacement engine relative to their weight.
- the fuel mixture feedstock introduced into the cylinder of any reciprocating internal combustion engine burns rapidly close to the top dead center of the piston of the engine, that is to say, at almost constant volume, and with the least possible thermal losses to the walls.
- Another strategy for restoring said propagation speed may be to increase the compression ratio of the internal combustion engine in order to increase the density and enthalpy of the load, both factors being favorable to this speed.
- said engines with a variable compression ratio make it possible to burn highly diluted charges with exhaust ga with the cyclic variation coefficients, ie with the differences in the combustion rate of a cycle to another and from one cylinder to another.
- flushing chambers require the piston to be brought very close to the cylinder head, which entails a risk of collision between said piston and said cylinder head, and that the desired hunting effect takes place only in the vicinity. high dead point that is relatively late compared to the moment of triggering the ignition of the charge by spark.
- flush chambers Another defect of the flush chambers is that they strongly favor thermal exchanges between the gases and the internal walls of your combustion chamber.
- the ignition device according to the invention can also be used on non-stoichiometric engines operating in excess of oxygen.
- the ignition device according to the invention is applicable to all internal combustion engines with compression fau and / or cylinder (fxx $) or variablefs), but that it offers a more optimal operation when it is implemented on an engine having at least one variable compression ratio, this type of engine simultaneously making it possible to benefit from a rate downsi 'zing high through at a high efficiency at very high loads and with a particular capacity â operate lesdltes trè strong charges compri-san external EG cooled by means of a tau temporarily lower compression, and benefit from a very high external cooled EG rate with low and intermediate charges whose combustion is made possible by a compression ratio temporarily high.
- the ignition device according to the invention is particularly suitable for alternative internal combustion engines used to propel automobiles,
- the high pressure spark ignition and stratification device for an internal combustion engine comprises:
- At least one low-lift stratification valve held in contact with a seat by at least one spring, said valve closing the end of a lamination duct and said end of the laminating duct opening into the combustion chamber of the engine an internal combustion engine, while said fuel duct connects at least one lamination chamber to said combustion chamber;
- At least one laminating ramp connecting the laminating chamber at the outlet of a compressor st ratification whose input is directly or indirectly connected to a supply conduit have atmospheric stratification, said ramp, said compresseu and inlet and outlet, and said supply conduit commonly forming an atmospheric air supply circuit of the laminating chamber, and said chamber itself being an integral part of said circuit;
- At least one laminating fuel injector controlled by the ECU computer of the internal combustion engine, said injector being able to produce a jet of fuel inside the atmospheric air supply circuit of the lamination chamber, at any location dudlt circuit;
- At least pre-cooled exhaust gas recirculation means known as "cooled external EG" controlled by the ECU computer of the internal combustion engine, the means for taking exhaust gases in the exhaust duct and engine exhaust reintroducing said gases to the intake of said engine after having previously cooled the gases by means of at least one cooler.
- the spark ignition and high pressure laminating device comprises a spark plug which is attached to the laminating valve so as to be integral with said valve in its longitudinal translational movement.
- the spark igniter and high pressure lamination comprises a spark plug which is attached to the cylinder head of the internal combustion engine, said valve moving one relative to said cylinder head and relative to said spark plug,
- the device for spark ignition and high pressure lamination comprises a low lift stratification valve whose seat has a mistletoe scope is oriented outwardly from the combustion chamber of the internal combustion engine so that the laminating actuator can only lift said seat-off valve by moving said valve away from said chamber.
- the spark ignition and high pressure laminating device comprises a low lift stratification valve whose The seat has a seat which is oriented towards the inside of the combustion chamber of the internal combustion engine so that the laminating actuator can lift said seat valve only in close proximity! said valve of said chamber.
- the device for spark ignition and high pressure lamination comprises an actuated "lamination which consists of a hydraulic laminating cylinder comprising a receiving hydraulic lamination chamber and a hydraulic piston laminating receiver, said piston being secured to the low lift stratification valve, or being connected thereto by hydraulic piston pusher means.
- the spark ignition and high pressure laminating device comprises a laminating receiving hydraulic chamber which is connected to a stratified hydraulic hydraulic chamber by at least one duct, the hydraulic fluid contained in said hydraulic cylinder being sheared off. being pressurized by a laminating emitting hydraulic piston when the latter compresses said fluid under the action of an electric laminating actuator.
- the spark ignition and high pressure laminating device comprises an electric laminating actuator which consists of at least one coil of conductive wire which attracts a magnetic core or paddle when said coil is traversed by an electric current. , so that said core or pallet pushes the laminating emitting hydraulic piston via core transmission means or pallet so that said piston compresses the hydraulic fluid contained in the hydraulic chamber
- the spark ignition and high pressure laminating device comprises an electric laminating actuator which consists of at least one stack of piezoelectric layers whose thickness varies when subjected to the passage of a current whereby said stack pushes the laminating emitting hydraulic piston via stacking transmission means of piezoelectric layers so that said pistou compresses the hydraulic fluid contained in the emitter hydraulic chamber.
- the high pressure spark ignition and laminating device comprises core or pallet transmission means which consist of a laminating emitting hydraulic piston push rod.
- the spark ignition and high pressure laminating apparatus comprises a laminating receiving hydraulic chamber which is connected to either a high pressure servo hydraulic fluid reservoir or a low servo hydraulic fluid reservoir. pressure by at least one high pressure solenoid valve and / or at least one low pressure actuator.
- the spark ignition and high pressure lamination device comprises a high pressure servo hydraulic fluid reservoir which is pressurized by a hydraulic servo pump said pump transferring a hydraulic fluid taken from the reservoir of hydraulic servo fluid b sse pressure to transfer it into said tank of high pressure hydraulic fluid servocontrol.
- the spark ignition and high pressure lamination device comprises a lamination receiving hydraulic chamber which is connected directly or indirectly to the pressure lubrication circuit of the internal combustion engine by a non-return valve, said valve allowing a hydraulic fluid contained in said circuit to go dudlt circuit to said chamber, but not vice versa.
- the spark ignition and high pressure lamination device comprises a lamination receiving hydraulic chamber which is connected directly or indirectly to the pressure lubrication circuit of the internal combustion engine by a pressure drop duct, said duct being of small section and / or of great length relative to its section, and / o having a lower shape not conducive to the establishment of the laminar flow between said circuit and said chamber of a hydraulic fluid contained in said circuit and / or said chamber.
- the spark ignition and high pressure laminating apparatus comprises a laminating actuator which consists of at least one coil of conductive wire integral with the cylinder head of the internal combustion engine, said coil attracting a pallet when said coil is traversed by an electric flow such that said pallet moves in longitudinal translation the low lift stratification valve with which it is connected.
- the spark ignition and high pressure laminating device comprises a laminating actuator which consists of at least one stack of piezoelectric layers whose thickness varies when subjected to the passage of a current electrical, so that said stack moves in longitudinal translation the low lift stratification valve with which it is connected.
- the high pressure spark ignition and laminating device comprises a stack of piezoelectric layers which is connected to the laminating valve at the lift via at least one lever which multiplies the displacement. said stack to said valve.
- the spark ignition and high pressure laminating device comprises a laminating actuator which consists of a pneumatic laminating jack comprising a laminating receiving pneumatic chamber and a laminating receiving pneumatic piston, said piston being integral.
- the low-lift stratification valve or the latter is connected thereto by pneumatic piston thrust means, whereas said pneumatic chamber can be brought into stable contact with a supply of high pressure air either in the open air or with a reserve of low pressure air by at least one solenoid valve.
- the spark ignition and high pressure lamination device comprises a lamination duct whose end opening into the combustion chamber of the moteu ® internal combustion comprises a lamination baffle.
- the spark ignition and laminating device comprises a laminating fuel filter which is a fuel gas tank under pressure.
- the high pressure spark ignition and laminating device comprises an atmospheric air feed circuit of the laminating chamber comprising a homogenization circulator, said circulator being placed at any point of said circuit and stirring an atmospheric air or a gaseous mixture contained in said circuit by circulating said air or said mixture through "Judit circuit.
- the spark igniter and auta stratification "pressure according to the present invention comprises an atmospheric air supply circuit of the lamination chamber having a heating air-air heat exchanger of the supply circuit which heats an atmospheric air or a gaseous mixture contained in said circuit by drawing heat contained in the exhaust gas of the internal combustion engine, said air or gaseous mixture and said exhaust gas passing simultaneously through it exchanger without mixing with them>
- the spark ignition and high pressure lamination device comprises an atmospheric air supply circuit of the lamination chamber comprising at least one electrical heating resistance of the supply circuit which heats atmospheric air or a mangy mixture contained in said circuit.
- the high-pressure spark-lamination device comprises a lower surface of the atmospheric supply circuit of the lamination chamber which is in part or part coated with a thermal insulation material.
- the high-pressure spark ignition device comprises an atmospheric air supply circuit of the lamination chamber comprising a cooling-water heat exchanger of the supply circuit which cools an atmospheric air. or a gaseous mixture contained in said circuit by yielding contained heat in said atmospheric air or gas mixture to an oxygen-containing fluid contains the cooling circuit of the internal combustion engine.
- the spark ignition device and high pressure solvent laminating the present invention comprises a lamination chamber having at least one inlet and / or at least one tangential outlet (s).
- the spark ignition and high pressure lamination device comprises an atmospheric air supply circuit of the lamination chamber comprising at least one brewing chamber which prints turbulent motion to a gaseous mixture which is in motion in said circuit or which undergoes rapid pressure changes to said gas mixture.
- the spark ignition and high pressure lamination device comprises a lamination ramp comprising at least one discharge valve which opens beyond a certain pressure prevailing in said ramp.
- the spark ignition and high pressure lamination apparatus comprises a lamination ramp and / or an output of the lamination compressor and / or a lamination chamber comprising at least one discharge eeakfrovanne whose outlet leads to the admission of the internal combustion engine, or in an eanister "or in one storage tank.
- the spark ignition and high pressure lamination device comprises an output of the lamination compressor which is connected to a pressure accumulator which stores an atmospheric air or a gaseous mixture previously pressurized by said compressor, W accumulator also directly or indirectly communicating with the lamination ramp and the lamination chamber so as to maintain said ramp and said chamber under pressure.
- the spark ignition and high pressure laminating device comprises a low lift stratification valve and a spark plug that are contained in the same cartridge un® 'stratification screwed into a cylinder head of the internal combustion engine.
- the spark ignition and high pressure laminating device comprises a spark plug and a low lift laminating valve which are made of the same body of material.
- the spark ignition and high pressure lamination apparatus of the present invention comprises a spark plug which is mounted screwed into the low lift laminating valve.
- the spark ignition and high pressure lamination device comprises pre-cooled exhaust gas reeireulaflon means "cooled external EGR" which consist of at least one quench valve of E ⁇ to proportional lift or of at least one proportionally rotational EGR tappet or at least one proportionally rotational EGR tappet positioned on the exhaust manifold of the internal combustion engine, said valve or said shutter or said plug being able to connect said manifold with an external EGR supply duct whose opposite end to that which opens into said manifold opens into the intake plenum of the internal combustion engine.
- cooled external EGR consist of at least one quench valve of E ⁇ to proportional lift or of at least one proportionally rotational EGR tappet or at least one proportionally rotational EGR tappet positioned on the exhaust manifold of the internal combustion engine, said valve or said shutter or said plug being able to connect said manifold with an external EGR supply duct whose opposite end to that which opens into said manifold opens into the intake plenum of the internal combustion engine.
- the spark ignition and high pressure laminating device comprises a proportional lift iGR tapping valve or a proportionally rotational EGR tapping flap or a proportionally rotational proportioned tapping EG plug valve. on the exhaust manifold which cooperates with at least one proportional lift exhaust or pressure relief valve or with a proportionally rotating exhaust counterpressure flap or with a proportionally rotational exhaust counterpressure flap which is provided by at least one of the exhaust ports manifold.
- the high pressure spark ignition and laminating device comprises a laminating EGR extender which is a high temperature air to water extinguishing device of the external EGR supply duct which cools the gases of the invention. exhaust taken from the exhaust pipe of the internal combustion engine, said exhaust gases yielding a heat to an auxiliary fluid contained in the cooling circuit of the internal combustion engine.
- the high pressure spark ignition and laminating device comprises a laminating EGR cooler which is an air-water temperature exchange of the external EGR feed duct which cools the exhaust gases taken from the exhaust duct of the internal combustion engine, said exhaust gas yielding a portion of their heat to a carrier fluid that contains an independent cold water circuit that includes the internal combustion engine.
- the spark ignition and high pressure lamination device comprises a lamination ramp and / or an output of the lamination compressor and / or a lamination chamber which comprises at least one air mixing valve, valve or injector.
- a lamination ramp and / or an output of the lamination compressor and / or a lamination chamber which comprises at least one air mixing valve, valve or injector.
- said valve, valve or injector that can transfer an air-fuel mixture from said ramp, or from said outlet or from said chamber to an exhaust pipe of the internal combustion engine, said mixture being introduced by said valve, valve or injector into said conduit at any point of said duct placed between the exhaust valve of said engine and the post-treatment catalyst pollutants of said engine.
- the spark ignition and high pressure laminating apparatus comprises a catalyst air-fuel mixing valve, valve or injector which is connected to an exhaust pipe of the internal combustion engine by a air-fuel mixture pipe for maintaining the catalyst temperature.
- Figure 1 is a schematic sectional view of the ignition device by spark and high pressure stratification according to the invention mounted on an internal combustion engine with alternative combustion.
- FIGS 2 and 3 are diagrammatic views of the spark ignition device and high pressure stratification according to invention; siratlfeatfon valve respectively in the closed position and then open, the seat of said valve being oriented outwardly of the combustion chamber of the internal combustion engine, and said valve can be lifted dndlt seat by a hydraulic jacking cylinder pressurized by an emitter piston powered by an electric self-initiator.
- FIGS. 4 and 5 are diagrammatic cross-sectional views of the spark ignition device and high-pressure laminating according to the invention, the valve of straiifoaflon respectively in closed position then open, the seat of said valve being oriented towards the inside of the combustion chamber of the internal combustion engine, and said valve being lifted ⁇ uâû 'seat by a hydraulic cylinder pressurized by laminating a émeteur piston driven by an electric solenoid acfionneur.
- Figure 8 is a schematic sectional view of the ignition device by spark and high pressure stratification according to the inventionDa laminating valve can be lifted from its seat by a coil of conductive wire integral with the cylinder head of the internal combustion engine, said coil which can attract a magnetic pallet integral with the valve.
- FIG. 8 illustrates a first alternative arrangement of the various components of the spark ignition and high pressure lamination device according to the invention, said device being applied to a turbocharged supercharged in-line four-cylinder internal combustion internal combustion engine, and said variant comprising in particular a homogenization circulator, a proportional lift valve of the EG and a proportional lift valve.
- FIG. 8 illustrates a first alternative arrangement of the various components of the spark ignition and high pressure lamination device according to the invention, said device being applied to a turbocharged supercharged in-line four-cylinder internal combustion internal combustion engine, and said variant comprising in particular a homogenization circulator, a proportional lift valve of the EG and a proportional lift valve.
- FIG. 8 illustrates a second alternative arrangement of the various components of the spark ignition device and high-pressure stratification according to the invention, said device being applied to an in-line four-cylinder reciprocating internal combustion engine supercharged by turbocharger and said variant comprising in particular a pressure accumulator which stores the atmospheric air or the gaseous mixture put pressure by the compressor of sf ratification, a lamination fuel injecfeur connected to a pressurized fuel gas tank, a piquag flap of proportional lifting EGR, and a shutter confrepresston exhaust lifting proportionally
- Figure 10 illustrates a third alternative arrangement of the various components of the spark igniter and high pressure lamination according to the invention, said device being applied to a heat engine with internal reciprocating com a turbo-supercharged supercharged in-line cylinder, and said variant comprising in particular an air-to-air heat exchanger for heating the atmospheric air supply circuit, a proportional lift EGR nozzle bushel, and a counterbalance bushel proportional lifting.
- an internal combustion engine 1 comprising a device for spark ignition and high-pressure lamination 2 according to the present invention.
- the internal combustion engine 1 comprises an engine block or cylinder block 3 which comprises at least one combustion cylinder 4 closed by a cylinder head 8 and in which a combustion piston 5 moves.
- the combustion piston 5 is mounted on a connecting rod 8 which is connected to a crankshaft? in order to effect the transmission of the movement of the combustion piston 5 inside the combustion cylinder 4>
- the cylinder head 8 of the internal combustion engine 1 has a combustion chamber 9 into which, on the one hand, an intake duct i 1 communicating by means of an intake valve 13 with a plenum dmiss on 19 and on the other hand an exhaust duct 10 communicating through a 12 m®® eebappernenf valve an exhaust manifold 18 and with a catalytic converter post-tai ⁇ en-t pollutants 75.
- the internal combustion engine 1 further comprises m cooling circuit 17.
- the spark ignition and high pressure lamination device 2 comprises at least one low lift lamination valve 20 held in contact with a seat 21 by at least one spring 22.
- the low lift laminating valve 20 is provided to close the end of a laminating duct 3.
- the end of the laminating duct 23 is provided to open into the combustion chamber of the internal combustion engine 1, while said lamination duct 23 connects at least one lamination chamber 24 to said combustion chamber 9.
- the spring 22 can act directly or indirectly through a solid or a fluid on the low-lift stratification valve 20, while it can be mechanical whatever the material, work in bending, in torsion or in traction, and be for example a washer Belevie s, a helical spring or blade, a corrugated elastic washer or any other geometry and be of any type known to those skilled in the art.
- the spring 22 can also be pneumatic using the compressibillté property of a gas, or hydraulic by exploiting the fluid's compressibility properties.
- the spark ignition and high pressure lamination device 2 comprises at least one spark plug 25 housed in the low lift stratification valve 20, The spark plug 25 is attached to the low lift laminating valve 20 so as to be integral with said valve in its longitudinal translation movement.
- the spark plug 25 can be fixed to the cylinder head 8 of the combustion engine M 1, said low-lift stratification valve 20 then moving alone with respect to said cylinder head and with respect to said spark plug .
- the spark plug 25 has electrodes 26 protruding which are positioned in the combustion chamber 9 of the internal combustion engine.
- said spark plug 25 can be identical or similar to those fitted to your internal combustion spark ignition engines such as known to those skilled in the art ..
- the spark ignition and high pressure lamination device 2 comprises at least one lamination actuator 27 controlled by an ECU computer that comprises the internal combustion engine 1.
- Stratification aiterator 27 ensures the lifting of its seat, keeps it open and rests on its seat 21 of the low-lift stratification valve 20,
- the spark ignition and high pressure lamination device 2 comprises at least one lamination ramp 23 connecting: the lamination chamber 24 at the outlet of a lamination compressor 29 whose inlet is connected directly or indirectly to a duct Atmospheric air supply of sfrai ⁇ ficattoo 30.
- Said laminating ramp 28, said laminating compressor 29 and its inlet and outlet, and said supply conduit 30 commonly form an atmospheric air supply circuit 31 of the laminating chamber 24, and said chamber itself even integral part eudli circuit 2.6
- the laminating compressor 29 may be of any type known to those skilled in the art, said compressor being of fixed displacement and with variafotes ston ⁇ s), with vane, with screw lubricated or not, mon "éfagé ⁇ bi-shelves or molli stepped, with cooling Intermediate had no.
- said laminating compressor 29 can in particular be fixed directly or indirectly to the internal combustion engine 1 and be driven mechanically by a crankshaft 7 that comprises said motor by at least one ignon or at least one chain or at least one belt 32 by means of a transmission fixed or variable ratio, or electrically via an alternator driven by said crankshaft that produces the current, necessary for an electric motor driving said compressor, the electrical energy produced by said alternator extinguished or not previously stored in a battery.
- the spark ignition device and high-pressure stratification 2 comprises at least one lamination fuel injector 33 driven by the EGO computer of the 1 "internal combustion engine.
- Said laminating fuel injector 33 can produce a jet of fuel within the atmospheric air supply circuit 31 of the laminating chamber 24 at any point in the circuit.
- Said stratification fuel injector 33 can inject a liquid or gaseous fuel and can be single-stage or multi-stage, solenoid or piezoelectric, or - generally - of any type known to the skilled person.
- the spark-ignition device and tent-pressure lamination 2 comprises at least previously cooled exhaust gas recirculation means 40 "of cooled external EGB driven by the ECU calculator, said gas recirculation means. previously cooled exhaust 40 for taking exhaust gases in the exhaust pipe 10 of the internal combustion engine 1 and then reintroducing said gases to the intake dudk engine after having previously cooled said ⁇ az by means of u minus a cooler 41.
- the spark ignition and high pressure laminating device 2 comprises a low lift stratification valve 20 whose seat 21 has a bearing which is directed outwardly of the combustion chamber 0 of the internal combustion engine 1 so that that the lamination actuator 27 can lift said valve âuùi 'î seat in said valve away from said chamber (figures 2 and 3).
- the spark ignition and high pressure lamination device 2 comprises a low lift laminating valve 20 whose seat 21 has a bearing which is directed towards the interior of the combustion chamber S of the engine. internal combustion engine 1 so that the lamination actuator 27 can lift said soupap due to 'seat in said valve bringing said chamber (figures 4 and 6)
- lamination facisonneur 27 consists of a hydraulic cylinder 38 comprising laminating a receiving hydraulic lamination chamber 37 and a hydraulic piston laminating receiver 38, said piston being integral with the stratification valve low 2O t lifting or being connected thereto by means of hydraulic piston thrust.
- the laminating receiving hydraulic piston 38 may comprise seals to achieve a horizontal position with a cylinder with which it cooperates.
- the laminating receiving hydraulic chamber 37 is connected to a stratifying emitting hydraulic chamber 42 by at least one duct 43, the hydraulic fluid contained in said emitting hydraulic chamber 42 being pressurizable by a laminating emitting hydraulic piston 44 when the latter compresses said fluid under the action of an electric acfionneur lamination 43.
- Said laminating emitting hydraulic piston 44 may comprise joints to achieve stability with a cylinder with which it co-operates
- the electrical lamination actuator 45 of the spark ignition and pressure ltering device 2 consists of at least one coil of conductive wire 46 which attracts a magnetic core or paddle 47 when said wound 46 es! An electric current passes through it, so that said core or pallet 47 pushes the laminating emitting hydraulic piston 44 via a core or pallet conveying means 48 so that said piston 44 compresses the hydraulic fluid contained in the chamber.
- hydraulic emitter 42 (FIGS. 2 and 3),
- iacflonneo electric lamination. 45 may consist of at least one stack of piezoelectric layers whose thickness varie varies when they are subjected to the passage of an electric current so that said stack pushes the laminating emitting hydraulic piston 44 vi means of transmission of stacking piezoelectric layers so that said piston 44 compresses the hydraulic fluid contained in the hydraulic chamber 42, the core transmission means or pallet 48 of the electric laminator 45 are constituted by a push rod of hydraulic piston emitting lamination 49 ( Figures 2 to 5)>
- the laminating laminating liquid receiving chamber 37 can be connected to a high pressure servo hydraulic fluid reservoir., Thirst to a low pressure servo hydraulic fluid reservoir. at least one high pressure solenoid valve and / or at least one low pressure solenoid valve.
- the high pressure hydraulic fluid reservoir is pressurized by a hydraulic servo pump, said pump transferring a hydraulic fluid taken from the low pressure servo hydraulic fluid reservoir to transfer it into said hydraulic fluid reservoir.
- a hydraulic servo pump said pump transferring a hydraulic fluid taken from the low pressure servo hydraulic fluid reservoir to transfer it into said hydraulic fluid reservoir.
- the laminating receiving hydraulic chamber 37 of the laminating actuator 27 is connected directly or indirectly to a pressurized lubricating circuit 14 that the internal combustion engine 1 comprises by a non-return valve 16, said valve allowing a hydraulic fluid : content in said circuit to go dudii circuit to said chamber, but not inverse ( Figures 2 to 5)
- said anti-retouch valve 15 has the function of replenishing hydraulic fluid said laminating receiving hydraulic chamber 3? when a leak has occurred in said chamber, or to compensate for the hydraulic fluid losses of said chamber following the voluntary leakage that constitutes the charge loss conduit 16 that comprises according to a particular embodiment of the device according to the invention.
- Lamination receiving hydraulic chamber 3? of the laminating actuator 2? is connected directly or indirectly to a pressure lubrication circuit 14 that includes the internal combustion engine by a pressure drop conduit 18, said duct being of small section and / or of great length relative to its section, and / or comprising an inner shape not conducive to the restoration of the laminar flow between said circuit and said chamber of a hydraulic fluid contained in said circuit ei oo said chamber.
- said charge bead conduit 16 functions to allow the hydraulic fluid to pass in a relatively large amount from said chamber 37 to said circuit 14 or vice versa on a long time basis during the rise or fall in temperature phases.
- internal combustion engine 1 while said hydraulic fluid can escape in very small quantities to go from said chamber 37 to said circuit 14 '' acted t short time bases characterized by the delay between two cycles of opening and closing of the low-lift stratification valve 20 according to the invention.
- FIG. 8 an embodiment of the laminating actuator 2 is shown.
- which consists of a coil of conductive wire 50 integral with the yoke 8 of the internal combustion engine 1, said coil attracting a magnetic pallet 51 when said coil is traversed by "n electric current, so that said pallet 51 moves in translation longitudinal the low lift stratification valve 20 with which it is connected.
- FIG. 7 shows another embodiment of the laminating actuator 2. which consists of a stack of piezoelectric layers 52, the thickness of which varies when they feel subjected to the passage of an electric current, so that said stack displaces in longitudinal translation the low-lift stratification valve with which it is connected
- the stack of piezoelectric layers 52 is connected to the low lift laminating valve 20 via the intermediate.
- at least one lever 63 which multiplies the displacement printed by said stack to said valve.
- Said lever 53 may consist, for example, of a washer consisting of a succession of small levers interconnected by each small lever resting on the top of the stack of piezoelectric coheses 52 on the one hand and on the valve 2U low lift stratification of other port
- the lamination facenter 27 consists of a pneumatic lamination jack comprising a lamination receiving pneumatic chamber and a lamination receiver pneumatic piston, said piston being integral with the low lift lamination valve 20 or being connected thereto by pneumatic piston urging means while said pneumatic chamber can be connected either with a supply of high-pressure air thirst in the open air or with a reserve of low-pressure air per year less an elecfrovanne.
- Said deflector 54 makes it possible to channel the flow of carbureted mixture expelled from the stratification chamber 24 to the combustion chamber S so that said mixture is driven by turbulent movements around the electrodes 26 of the spark plug 25, said movements being such as to facilitate the initiation and development of the combustion of the mixture when an electric arc is produced across said spark plug 25 by the passage between the two electrodes 28 of a high voltage electric current.
- the lamination fuel injector 33 is connected to a pressurized fuel gas tank 55 (FIG. 9).
- FIGS. 8 and 10 show the atmospheric air supply circuit 31 of the stratification chamber 24 comprising a centrifugal separator 56.
- said homogenizing cirhler 56 is placed at any point in the feed circuit 31 and brews a atmospheric air or a gaseous mixture contained in said circuit by circulating said air or said mixture through a circuit
- the circuit 31 for supplying atmospheric air 31 to the stratification chamber 24 comprises a heating air-heat exchanger 57 of the supply circuit 31 which heats an atmospheric air or a gaseous mixture contained in said circuit by drawing from the heat contained in the exhaust gas of the internal combustion engine 1 : said air ga mixing them and said exhaust gas passing simultaneously through said exchanger 57 without mixing them ( Figure 10).
- the atmospheric air supply circuit 31 of the laminating chamber 24 comprises at least one electrical heating resistor of the supply circuit, not shown, which heats an atmospheric air or a gaseous mixture contained in said circuit.
- the inner surface of the atmospheric air supply circuit 31 of the lamination chamber 24 may be wholly or partly covered with a thermal insulation material which may be ceramic, air, or any other means of thermal insulation known to those skilled in the art.
- the circuit Autonomous power in atmospheric air 31 of the laminating chamber 24 which may comprise a heat exchanger air-water supply circui 58 which cools an atmospheric air or a gas mixture contained in said circuit by yielding heat contained in said air or gaseous mixture ê a coolant contained in a cooling circuit 17 that includes the internal combustion engine 1,
- the laminating chamber 24 may comprise at least one inlet and / or at least one outlet taegenfîelle (s) so that adite input and / or output allows to print an oven movement illonnaire to fair atmospheric or the gaseous mixture coming from the lamination ramp 28 when said air or mixture is introduced into said chamber.
- the atmospheric air supply circuit 31 of the laminating chamber 24 may comprise at least one brewing amber which impresses a turbulent motion on a gaseous mixture which is in motion in said circuit or which is subject to rapid agitation. pressure variations to said mixture.
- Said stirring obam re can for example achieve an effect.
- FIG. 10 illustrates the stratification ramp 20 which comprises at least one discharge valve 59 which opens beyond a certain pressure prevailing in said ramp,
- Laminating ramp 28 and / or exit of the laminating compressor 29 and / or the laminating chamber 24 comprises at least one discharge éleetrovanne, not shown, whose output opens into the inlet of a0 internal combustion engine 1, or in an eanisier, or in a storage tank also not shown.
- said solenoid valve may be actuated when opening the stopping of the internal combustion engine 1 so that said canister or said tank $ stores essential hydrocarbon vapors contained in said stratification ramp 28 and / or said outlet. of the laminating compressor 29 and / or said laminating chamber 24 and said vapors being burned during subsequently restarting said engine, or so that said vapors are burnt immediately by said engine when expelled at the engine inlet by said solenoid valve.
- Said pressure accumulator 60 makes it possible in particular to stabilize the pressure in these organs in the case "for example - the lamination compressor 29 includes a single piston rotatable at a reduced speed, this configuration generating high amplitude pressure wave to the Interior desdif organs,
- the low-lift stratification valve 20 and the spark plug 25 may be contained in the same laminating cartridge 61 screwed into the cylinder head 8 of the Intern i combustion engine (FIGS. ).
- Said laminating cartridge 81 may - according to a particular embodiment of the device according to the invention ⁇ contain all or part of the lamination initiator 27 and its possible fluid inlet and outlet, have inputs and outputs for atmospheric air or the fuel mixture conveyed by the atmospheric air supply circuit 31 of the lamination chamber 24, and comprise one or more seals or segments 82 ensuring retenhélté between said cartridge 61 and said cylinder head 8, the segment closest to the chamber of combustion 8 of the internal combustion engine 1 also ensuring the cooling of said cartridge.
- spark plug 25 and the low lift stratification valve 20 can be made in the same body of material.
- the spark plug 26 is mounted screwed into the low lift stratification valve 20.
- said valve may comprise backdrops which block it in rotation with respect to the cylinder head 8 of the internal combustion engine 1 to facilitate assembly-disassembly and clamping-loosening of said tagie 25 in said low-lift stratification valve. S 2u said candle amount then in said manner Same engine any spark plug as known from the skilled person.
- FIGS. 8 to 10 show the previously cooled exhaust gas recircling means 40, referred to as the "cooled external EGR", of the spark ignition and nautic pressing device 2 according to the present invention
- the pre-cooled exhaust gas recirculation means 40 consist of at least one proportional-lift EGR quilting valve 83 or at least one rotating EGE flap.
- propodyneite 64 or at least one proportionally rotational EGR nozzle 85 positioned on the exhaust manifold 18 of the internal combustion engine 1, said valve or said flap or said plug being able to connect said manifold with a conduit external EGR supply 66 whose end opposite to that which opens into said manifold opens into the intake plenum 19 engine.
- the proportional-lift EGR quenching valve 63 or the proportionally-rotating EGR quenching flap 64 or the proportionally-rotating EGR quenching plug 85 positioned as the exhaust manifold 18 cooperates with at least one quench valve. or with a proportionally rotating exhaust against pressure shutter 68 or with a proportionally rotational exhaust escape valve 89 that comprises at least one of the outlets of the collector manifold.
- Laminating EGR 41 can be a heat exchanger hate me & u temperature of the supply duct e external EGR that cools the exhaust gases taken from the exhaust duct 10 of the engine to combustion 1 ; the gases that give up part of their heat to a coolant fluid contained in the cooling circuit 1? of this motor.
- the refroldlsseur EGR lamination 41 may be a low temperature air-water heat exchanger of the external EGR supply duct that cools the gases éc appement taken from the exhaust pipe 10 of the internal combustion engine 1, said gas yielding part of their heat to a coolant fluid contained in an independent cold water circuit contained in the internal combustion engine.
- circuit cold water may be that the charge air cooler that has said engine, you! circuit being known to those skilled in the art
- FIG. 5 illustrates the lamination ramp 28 and / or the output of the lamination compressor 29 and / or the lamination chamber 24 which comprises at least one air-fuel mixture valve, valve or injector 76 making it possible to maintain the temperature the catalyst 76, said valve, valve or injector 76 being able to transfer an air-fuel mixture from said ramp 28, or from said outlet or from said chamber 24 to the duct 10 of the internal combustion engine 1, said mixture being introduced by said valve, valve or injector 76 into said duct 10 at any point udit led placed between the exhaust valve 12 of said engine and the posf treatment catalyst pollutants 75 Eudit engine 1,
- Said mixture can thus and if necessary be introduced into said exhaust duct 10 once said catalyst posttraltarnen! pollutants 75 has reached an operating temperature enabling it at least to operate with a sufficient yield, and this so that said mixture is burnt in said catalyst 75 so that it dmr is held at a temperature sufficient for it maintains a good efficiency of conversion of gaseous pollutants into non-pollutant gases,
- the catalyst air-fuel mixture valve (76), valve or injector (76) is connected to the exhaust pipe (10) of the internal combustion engine (1) via an air-fuel mixture pipe of maintaining the catalyst temperature (77), said mixing duct 77 It can also include a cannula or an insulation flange 70 which prevents the said "hot" from being too hot. onc ionization of the invention
- the ignition device according to firwention operates according to at least the following modes;
- the ignition device operates as follows, for example when it is implemented on a four-cylinder internal reciprocating combustion engine, as illustrated in FIGS. 8 to 10:
- Pressurization phase of the ramp 28 the starting of the engine 1 is carried out as if it were a motor at the state of the art injection muèipolnis, the ignition device 2 according to the invention is not used at this stage, except for the spark plug 2 S it comprises.
- the laminating compressor 29 Being directly driven by the crankshaft 7 of the engine according to this xem, the laminating compressor 29 is mi in action along with said crankshaft and draws clean air taken at the output of the air filter housing 70 dudlt engine.
- an injector 33 sprays fuel at the intake of said laminating compressor 20 in such proportions a stoichiometric air-fuel mixture is discharged at the outlet of said compressor, directly into the stratification ramp 28,
- the homogenization circulator 58 circulates the air-essen mixture successively successively through the stratification ramp 28, through the various stratification chambers 2: 4 that each combustion cylinder 4 comprises. of the internal combustion engine 1 as provided by the invention, then through the return homogenization duct 71 so as to return to said eirculator e to repeat the same circuit as said ramp 28 is pressurized and I ⁇ internal combustion engine is working.
- the mixing effected by the homogenization circulator 58 serves to reduce the condensation of the gasoline contained in the sICBChiometric air-fuel mixture on the internal walls of the stratification ramp 28 and the stratification chambers 24, said mixture being under pressure and therefore favoring the maintenance of gasoline in the vapor state.
- Said stirring also has the function of forcing the air-petrol mixture to remain homogeneous and at a temperature close to that of said walls, said temperature being lower than the auto-infiammation temperature of the mixture, and to clean said walls in particular by re-diluent any fuel residues attached on said walls and resulting from previous uses of the device 'spark plug according to the invention.
- the stratification ramp 28 rises in pressure until a pressure higher than the pressure in the combustion chamber 9 of the internal combustion engine 1 when the piston 5 of the latter reaches its end compression stroke, just before the ignition of the charge contained in said chamber.
- the ignition device according to the invention is ready to load the load of said engine, which is as follows. :
- said actuator is then attracted by said coil and moves in the direction of the latter by pushing on the hydraulic piston stratification emitter 44 the latter then pressurizing the chamber of the hydraulic stratification jack 36 by compressing the hydraulic fluid contained in said ram ,.
- the low-lift stratification valve 20 then rises a few hundredths of a millimeter or even one tenth of a millimeter from its seat 21 under the effect of the thrust of the laminicatio hydraulic ram piston 36, and a fraction the carburetted pressure mixture contained in the stratification ramp 28 and more precisely in the laminating chamber 24 escapes to the combustion chamber 9 of the emitter 1 "
- the coil 6 of the electric laminating actuator 45 ceases to be energized with current .
- the magnetic core 47 of said actuator is pushed back into its initial position by the hydraulic laminating emitter piston 44 which is itself repelled by the hydraulic fluid contained in the hydraulic stratification jack 36.
- the low lift stratification valve 20 then returns closed position under the "Belleville" washers which constitute the return spring 22 and maintain the laminating hydraulic cylinder 38 under pressure when said valve is open.
- the ignition of the pilot load comes, a high voltage being applied across the spark plug 26 so as to form an electric arc between the electrodes 26 of the spark plug.
- pilot charge Since the pilot charge is stoichiometric and has a strong turbulent motion, it rapidly ignites and then forms a substantially spherical volume which rapidly expands under the effect of temperature to form a substantially broadly pronounced flame front. surface in contact with the main charge, which also ignites rapidly because the remaining distance to travel through the flame to burn completely said main charge is short.
- the pre-cooled exhaust gas recirculation means 40 may comprise a proportional-lift EGR tap valve 63 positioned on a collector.
- Exhaust 18 which connects the exhaust outlets of the cylinders A and B of the internal combustion engine 1 and which comprises said engine, the stitching valve 63 cooperating with a proportional lift exhaust confluence valve 6? positioned at the outlet of said manifold 18.
- the EGR stub valve 83 When the EGR stub valve 83 is fully open and the exhaust exhaust valve 87 fully closed, the entire exhaust gases of the cylinders A and B are reintroduced into the intake plenum 19 of the combustion engine Mer 1 via its stitching valve 83 and the outer EGR supply duct 88 the latter comprising an air-water external hot-air EGR cooler 72 ⁇ it is to am whose water is the one that cools said engine the same - in which pass said gas to undergo a first temperature drop, the latter then passing into a cool air / water cooler 73 that contains the intake plenum 19 to undergo a second temperature drop, the latter cooler serving also to cool the charge air of said engine when it is supercharged by its turbocharger 74 (Figur 8) * According to this cenftgu ration and this adjustment, the air admitted to the inlet of the engine 1 contains Fifty percent of EGR e is at temperatures only a few degrees higher than that of ambient air.
- the initialization of the combustion of the highly diluted sfoschlometric main charge with cooled external PEGR is ensured by the large-area flame front developed at the periphery of the pilot charge and brought into contact with said main charge.
- said main beam Me quickly under the effect first, of the compression generated by the combustion of the pilot charge said compression increasing the enthalp e of said main charge remaining to shine, secondly, the wide contact surface exposed to the flame and thirdly, the small distance remaining to be traveled by said flame to burn off the integer of said main barb.
- the temperature of the charge is greatly reduced with cold external EGR, the main temperature of the charge is greatly reduced, reducing both the sensitivity to engine knock and the thermal losses in the walls. It is then possible to trigger the start of combustion of the load at the optimum moment on a criterion of maximum efficiency ;: and to increase the compression ratio of the engine that it is fixed or variable, to increase the thermodynamic efficiency of the throttling,
- the average cooled external EGR content of the filler can advantageously be increased parallel to the compression ratio, the increase in this rate being simultaneously favorable to the stability of the combustion. under strong external cooled EGR and the thermodynamic efficiency of gas expansion.
- the laminating hydraulic jack piston 38 cooperates with a non-return valve 16 and a pressure loss pipe. 18
- the nonreturn valve 15 also has the function of replenishing the hydraulic fluid receiving chamber 37 of the hydraulic laminating jack 36 at each cycle of opening and closing. stratification with Mbte raised 20 "and this to p & vent possible leaks possibly occurring at the hydraulic receiver piston 38 of the stratification hydraulic cylinder 38 on the one hand, and to compensate for the voluntary leak that inevitably costs the pipe at the loss of cha ⁇ 1b other bet
- the length, the section and the shape of the pressure drop duct 18 are designed to allow both the compensation of the dilatation-reaction of the oil due to temperature variations on a long time basis, and to disturb as little as possible the operation of the low lift laminating valve 20 on a short, cycle-to-cycle time basis.
- the stratification and then the dilution phases of the charge with cooled external EGR can be delayed in time so as to leave the fuel stored in said ramp during the last session of the internal combustion engine 1 to return to the vapor state following the rise in temperature of the internal walls of said ramp and to the stirring effected by the homogenization mixer 56,
- This delay also makes it possible to temporarily reserve all the energy contained in the exhaust gases of the engine while heating the 3-way catalyst of said engine before diluting the engine load with cooled external EGR.
- the ignition device 2 can authorize the initiation of the combustion of the same engine cycle according to two distinct modes, the first mode being a spark-controlled ignition and is addressed! at the pilot load, while the second mode is a compression-triggered ignition according to the principles proposed by CM and HCC! and addresses the main charge.
- the cooled external EG may be wholly or partly replaced by hot internal EGR so that the main temperature conditions, of pressure and composition necessary for the good triggering of its combustion in CAC or HCCI, It is noted that said tripping of the combustion of the same moteyr cycle according to the two distinct modes is better controllable if it is implemented on a variable compression ratio engine.
- the internal combustion engine may advantageously comprise a device for controlling the opening and / or closing and / or lifting of its intake valves 13 and / or exhaust 12, in addition or not to the variable compression false.
- This particular mode of use makes it possible in particular to anticipate the closing of the intake valve 13 during the combustion piston inlet stroke 5 of the engine 1 in order to reduce the residual pumping losses at low loads.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CA2861896A CA2861896A1 (fr) | 2012-01-18 | 2013-01-14 | Dispositif d'allumage par etincelle et stratification haute-pression pour moteur a combustion interne |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1250504 | 2012-01-18 | ||
FR1250504A FR2985776B1 (fr) | 2012-01-18 | 2012-01-18 | Dispositif d'allumage par etincelle et stratification haute-pression pour moteur a combustion interne |
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WO2013107972A1 true WO2013107972A1 (fr) | 2013-07-25 |
Family
ID=47741160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2013/050082 WO2013107972A1 (fr) | 2012-01-18 | 2013-01-14 | Dispositif d'allumage par étincelle et stratification haute-pression pour moteur à combustion interne |
Country Status (4)
Country | Link |
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US (1) | US20130180498A1 (fr) |
CA (1) | CA2861896A1 (fr) |
FR (1) | FR2985776B1 (fr) |
WO (1) | WO2013107972A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130199494A1 (en) * | 2012-02-06 | 2013-08-08 | Vianney Rabhi | High-pressure spark-ignition and stratification device for an internal combustion engine |
JP6398834B2 (ja) * | 2015-03-27 | 2018-10-03 | 株式会社デンソー | 制御装置 |
FR3060222B1 (fr) * | 2016-12-09 | 2019-05-17 | Vianney Rabhi | Bougie d'allumage a electrode-navette |
US10890133B2 (en) * | 2018-09-10 | 2021-01-12 | Vianney Rabhi | Magnetic valve recoil device |
US11187141B2 (en) * | 2019-05-13 | 2021-11-30 | Vianney Rabhi | Ignition insert with an active pre-chamber |
US11473551B1 (en) | 2021-08-31 | 2022-10-18 | Saudi Arabian Oil Company | Flexible ignition device for gasoline compression ignition combustion in internal combustion engines |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106439A (en) * | 1975-05-27 | 1978-08-15 | Mitsuhiro Kanao | Internal combustion engine |
US4503817A (en) * | 1982-02-18 | 1985-03-12 | General Motors Corporation | Annular valve stratified charge spark ignition engines |
US4960089A (en) * | 1988-11-28 | 1990-10-02 | Aisan Kogyo Kabushiki Kaisha | Combustion system |
US5000135A (en) * | 1990-08-08 | 1991-03-19 | Kunito Taguma | Gasoline engine with single overhead camshaft having duel exhaust cams per cylinder wherein each exhaust cam has duel lobes |
DE19819197A1 (de) * | 1997-04-25 | 1999-01-28 | Reinhard Dr Ing Latsch | Verfahren und Vorrichtung zur Regelung der Gemischzusammensetzung an der Zündstelle bei Ottomotoren mit Kraftstoffdirekteinspritzung |
DE102005017564A1 (de) * | 2005-04-16 | 2006-12-07 | Daimlerchrysler Ag | Kraftstoffanlage für eine Kolben-Brennkraftmaschine |
-
2012
- 2012-01-18 FR FR1250504A patent/FR2985776B1/fr not_active Expired - Fee Related
-
2013
- 2013-01-14 WO PCT/FR2013/050082 patent/WO2013107972A1/fr active Application Filing
- 2013-01-14 CA CA2861896A patent/CA2861896A1/fr not_active Abandoned
- 2013-01-17 US US13/743,422 patent/US20130180498A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106439A (en) * | 1975-05-27 | 1978-08-15 | Mitsuhiro Kanao | Internal combustion engine |
US4503817A (en) * | 1982-02-18 | 1985-03-12 | General Motors Corporation | Annular valve stratified charge spark ignition engines |
US4960089A (en) * | 1988-11-28 | 1990-10-02 | Aisan Kogyo Kabushiki Kaisha | Combustion system |
US5000135A (en) * | 1990-08-08 | 1991-03-19 | Kunito Taguma | Gasoline engine with single overhead camshaft having duel exhaust cams per cylinder wherein each exhaust cam has duel lobes |
DE19819197A1 (de) * | 1997-04-25 | 1999-01-28 | Reinhard Dr Ing Latsch | Verfahren und Vorrichtung zur Regelung der Gemischzusammensetzung an der Zündstelle bei Ottomotoren mit Kraftstoffdirekteinspritzung |
DE102005017564A1 (de) * | 2005-04-16 | 2006-12-07 | Daimlerchrysler Ag | Kraftstoffanlage für eine Kolben-Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
FR2985776B1 (fr) | 2014-01-17 |
CA2861896A1 (fr) | 2013-07-25 |
FR2985776A1 (fr) | 2013-07-19 |
US20130180498A1 (en) | 2013-07-18 |
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