FR2478746A1 - Different octane fuel mixing system for IC engine - uses twin fuel supplies with separately timed injectors to give mix controlled by preset memory to correspond to engine conditions - Google Patents
Different octane fuel mixing system for IC engine - uses twin fuel supplies with separately timed injectors to give mix controlled by preset memory to correspond to engine conditions Download PDFInfo
- Publication number
- FR2478746A1 FR2478746A1 FR8006474A FR8006474A FR2478746A1 FR 2478746 A1 FR2478746 A1 FR 2478746A1 FR 8006474 A FR8006474 A FR 8006474A FR 8006474 A FR8006474 A FR 8006474A FR 2478746 A1 FR2478746 A1 FR 2478746A1
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- Prior art keywords
- engine
- fuel
- injectors
- memory
- detonation
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- Granted
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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
- 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
- F02D19/0605—Control of components of the fuel supply system to adjust the fuel pressure or temperature
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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
- 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
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
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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
- 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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0665—Tanks, e.g. multiple tanks
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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
- 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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per 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
- 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
- F02D19/08—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 simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- 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
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
La présente invention concerne un dispositif d'alimentation par injection de carburant pour moteur à combustion interne à allumage commandé. Elle s'applique plus particulièrement à l'alimentation des moteurs de propulsion de véhicules automobiles
Le rendement des moteurs à combustion interne dépend essentiellement du rapport volumique de compression.The present invention relates to a fuel injection supply device for an internal combustion engine with positive ignition. It applies more particularly to the supply of propulsion engines of motor vehicles
The efficiency of internal combustion engines depends essentially on the compression compression ratio.
Dans le cas des moteurs à allumage commandé, ce rapport de compression est limité par le phénomène de détonation qui lui-même dépend des caractéristiques d'auto-inflammation du carburant. La résistance d'un carburant à l'autoinflammation est définie par son indice d'octane.In the case of spark ignition engines, this compression ratio is limited by the detonation phenomenon which itself depends on the auto-ignition characteristics of the fuel. The resistance of a fuel to auto-ignition is defined by its octane number.
L'exigence en octane d'un moteur est l'indice d'octane minimum qui lui permet de fonctionner sans détonation dans toutes les conditions de charge et de régime. The octane requirement of an engine is the minimum octane rating that allows it to operate without detonation under all load and speed conditions.
En fait, ce sont surtout les conditions de fonctionnement en pleine charge et plutôt à bas régime qui définissent l'exigence en octane d'un moteur.In fact, it is above all the operating conditions at full load and rather at low speed that define the octane requirement of an engine.
Dans le cas de l'application à l'automobile des moteurs à allumage commandé, les conditions d'utilisation sont très variables et la fraction du temps pendant laquelle le moteur fonctionne à pleine charge est relativement faible. La plupart du temps, les conditions d'utilisation du moteur concernent des charges partielles, notamment en marche à vide, conditions pour lesquelles les exigences en octane sont réduites. Les qualités antidétonantes du carburant qui conditionnent son mode d'elabora- tion et, par conséquent son prix, sont donc très mal utilisées. In the case of the application of spark ignition engines to the automobile, the conditions of use are very variable and the fraction of the time during which the engine is operating at full load is relatively small. Most of the time, the conditions of use of the engine relate to partial loads, in particular when idling, conditions for which the octane requirements are reduced. The anti-knock qualities of the fuel which condition its method of production and, consequently, its price, are therefore very badly used.
Indépendamment de l'effet des additifs antidétonants, tels que le plomb tétra-éthyle ou le plomb tétra-méthyle, l'indice d'octane d'un carburant est obtenu par un mélange adéquat d'hydrocarbures ayant eux-mêmes des indices d'octane variés. Independently of the effect of anti-knock additives, such as tetra-ethyl lead or tetra-methyl lead, the octane number of a fuel is obtained by an adequate mixture of hydrocarbons themselves having indices of various octane.
Au lieu que soient fixées.une fois pour toutes en raffinerie les caractéristiques antidétonantes d'un seul carburant, caractéristiques qui ne seront qu'occasionnellement utilisées lors du fonctionnement à pleine charge, l'invention propose un nouveau système d'alimentation qui fournit au moteur à tout moment, en fonction de ses conditions d'utilisation, un mélange adéquat de deux carburants dont l'un, à haut indice d'octane, définit le taux de compression utilisable à pleine charge et dont l'autre, à faible indice d'octane, permet tout juste le fonctionnement à faible charge. Instead of having the anti-knock characteristics of a single fuel fixed once and for all in refineries, characteristics which will only occasionally be used when operating at full load, the invention proposes a new supply system which supplies the engine at any time, depending on its conditions of use, an adequate mixture of two fuels, one of which, with a high octane number, defines the compression ratio usable at full load and the other, with a low d number 'octane, just allows operation at low load.
L'invention a donc pour objet un dispositif d'alimentation en carburant d'un moteur à combustion interne à allumage commandé, comprenant un premier circuit d'alimentation composé d'un réservoir, d'une pompe de mise en compression, d'un régulateur de pression et d'au moins un injecteur, caractérisé en ce que, le réservoir dudit premier circuit contenant un carburant à haut indice d'octane, il est prévu un second aircuit d'alimentation composé d'un réservoir contenant un carburant à faible indice d'octane, d'une pompe de mise en compression, d'un régulateur de pression et d'au moins un injecteur, des moyens étant prévus pour faire varier le rapport du temps d'ouverture des injecteurs de chacun des deux circuits afin d'introduire à chaque instant dans le moteur un mélange de carburants dont l'indice d'octane résultant correspond à l'indice nécessaire pour éviter la détonation. The invention therefore relates to a fuel supply device for an internal combustion engine with positive ignition, comprising a first supply circuit composed of a reservoir, a compression pump, a pressure regulator and at least one injector, characterized in that, the tank of said first circuit containing a fuel with high octane number, there is provided a second supply aircuit composed of a tank containing a fuel with low octane octane number, a compression pump, a pressure regulator and at least one injector, means being provided for varying the ratio of the opening time of the injectors of each of the two circuits so as to to introduce a mixture of fuels at all times into the engine, the resulting octane number of which corresponds to the index necessary to avoid detonation.
Grâce à ce système d'alimentation, à partir d'une quantité donnée de brut à raffiner, la faible quantité relative de carburant à haut indice d'octane à élaborer donne une plus grande souplesse en raffinerie pour obtenir ce dernier. I1 est même possible d'améliorer encore cet indice par rapport au supercarburant actuel, ce qui permettrait d'augmenter le taux de compression des moteurs et de gagner, par conséquent, en rendement global. Thanks to this supply system, starting from a given quantity of crude oil to be refined, the small relative quantity of high octane fuel to be produced gives greater refinery flexibility to obtain the latter. It is even possible to further improve this index compared to the current premium fuel, which would make it possible to increase the compression ratio of the engines and consequently to gain in overall efficiency.
Par ailleurs, dans le carburant à faible indice d'octane, il serait possible, du fait du faible niveau nécessaire d'inclure des hydrocarbures à faibles caractéristiques antidétonantes, jusqu'à présent inutilisables ou utilisables seulement en faible quantité. D'une façon générale, l'utilisation de deux carburants libère d'un certain nombre de compromis que doit réaliser l'unique carburant actuel (tension de vapeur, courbe de distillation) avec la possibilité complémentaire d'introduire, dans l'un ou dans l'autre des carburants, des produits autres que ceux issus du pétrole ( alcool, méthanol, par exemple). Furthermore, in low octane fuel, it would be possible, due to the low level necessary to include hydrocarbons with weak anti-knock characteristics, hitherto unusable or usable only in small quantities. In general, the use of two fuels frees from a certain number of compromises which the single current fuel must achieve (vapor pressure, distillation curve) with the additional possibility of introducing, into one or in the other, fuels, products other than those from petroleum (alcohol, methanol, for example).
Dans les dessins joints, qui illustrent la description qui suit
- la Fig.1 est un schéma d'un dispositif d'alimentation selon l'invention;
- la Fig.2 représente schématiquement un circuit électronique de commande du dispositif de l'invention.In the accompanying drawings, which illustrate the following description
- Fig.1 is a diagram of a supply device according to the invention;
- Fig.2 shows schematically an electronic control circuit of the device of the invention.
Comme on le voit sur la Fig.1, le dispositif d'alimentation représenté comprend deux circuits : un premier circuit est composé d'un réservoir 1, d'une pompe 2 entrainée par un moteur 3, d'un régulateur de pression4 avec conduit de retour 5 et d'un injecteur 6; un second circuit est composé d'un réservoir 7, d'une pompe 8 en trainée par le moteur 3, d'un régulateur de pression 9 avec conduit de retour 10 et d'un injecteur 11. As seen in Fig.1, the supply device shown comprises two circuits: a first circuit consists of a tank 1, a pump 2 driven by a motor 3, a pressure regulator4 with conduit return 5 and an injector 6; a second circuit is composed of a reservoir 7, a pump 8 driven by the motor 3, a pressure regulator 9 with return pipe 10 and an injector 11.
Les injecteurs 6 et 11 débouchent dans un conduit d'alimentation 12 d'un moteur à combustion interne, non représenté, au voisinage d'un papillon des gaz 13. The injectors 6 and 11 open into a supply duct 12 of an internal combustion engine, not shown, in the vicinity of a throttle valve 13.
Le réservoir 1 contient un carburant à haut indice d'octane, tandis que le réservoir 7 contient un carburant à faible indice d'octane. Tank 1 contains a high octane fuel, while tank 7 contains a low octane fuel.
Un circuit électronique de commande, représenté en E, détermine les temps d'ouverture t6 et tll des injecteurs 6 et 11 en fonction des conditions d'utilisation du moteur. An electronic control circuit, shown at E, determines the opening times t6 and tll of the injectors 6 and 11 according to the conditions of use of the engine.
La Fig.2 représente le schéma du circuit de commande E du dispositif de la Fig.l. Fig.2 shows the diagram of the control circuit E of the device of Fig.l.
Pour chaque condition d'utilisation du moteur, les temps t6, tll sont fixés de façon à obtenir une garantie suffisante d'absence de détonation quelles que soient les conditions et les dispersions entre moteurs d'une même série. For each condition of use of the engine, the times t6, tll are fixed so as to obtain a sufficient guarantee of absence of detonation whatever the conditions and the dispersions between engines of the same series.
Le circuit de la Fig.2 est du type numérique à mémoire. The circuit in Fig. 2 is of the digital memory type.
I1 comporte donc une mémoire 14 dans laquelle sont stockées des informations provenant de relevés effectués en laboratoire sur le type de moteur considéré. I1 therefore includes a memory 14 in which information from laboratory readings on the type of engine is stored.
Les entrées de la mémoire 14 sont connectées par l'intermédiaire d'un registre d'adresse 15 à des détecteurs de débit d'air, de vitesse, de température 16, 17,18. The inputs of memory 14 are connected via an address register 15 to detectors of air flow, speed, temperature 16, 17, 18.
Les sorties des détecteurs de débit d'air et de vitesse 16 et 17 sont en outre connectées à deux entrées d'un diviseur 19 destiné à délivrer un signal correspondant à la charge du moteur. The outputs of the air flow and speed detectors 16 and 17 are also connected to two inputs of a divider 19 intended to deliver a signal corresponding to the load of the motor.
Les sorties de la mémoire 14 sont connectées aux entrées de deux registres à décalage 20,21 qui font respectivement partie des voies de commande des injecteurs 6 et 11. The outputs of memory 14 are connected to the inputs of two shift registers 20,21 which are respectively part of the control channels of injectors 6 and 11.
La voie de commande de l'injecteur 6 comporte en outre un compteur programmable 22, un générateur d'impulsions 23 et un étage de puissance 24. The injector 6 control channel further comprises a programmable counter 22, a pulse generator 23 and a power stage 24.
De la même façon, la voie de commande de l'injecteur 11 comprend un compteur programmable 25, un générateur d'impulsions 26 et un étage de puissance 27. In the same way, the control channel of the injector 11 comprises a programmable counter 25, a pulse generator 26 and a power stage 27.
A titre de variante, le circuit qui vient d'être décrit peut comporter en outre comme représenté en trait interrompu sur la Fig.2, un capteur détecteur de détonation 28 connecté aux générateurs d'impulsions 23 et 26 par l'intermédiaire d'un amplificateur 29. As a variant, the circuit which has just been described may further comprise, as shown in broken lines in FIG. 2, a detonation detector sensor 28 connected to the pulse generators 23 and 26 via a amplifier 29.
Alors que sans le capteur détecteur de détonation (28), le circuit de la Fig.2 est un circuit de commande en boucle ouverte, grâce à l'adjonction du capteur 28, ce circuit devient un circuit de commande en régulation, c'est-à-dire en boucle fermée ou en mode asservi
Les capteurs 16,17,18 permettent de constituer une adresse de mémoire qui regroupe
- d'une part, le quotient établi par le diviseur 19 de l'indication de débit d'air, par la vitesse de rotation qui, comme indiqué plus haut constitue une indication de la charge du moteur;
- d'autre part, l'indication de la vitesse du moteur;
- éventuellement une indication de la température incorporée de manière codée dans l'adresse.While without the detonation detector sensor (28), the circuit in Fig. 2 is an open-loop control circuit, thanks to the addition of sensor 28, this circuit becomes a control circuit in regulation, it is ie in closed loop or in slave mode
The sensors 16, 17, 18 make it possible to constitute a memory address which groups together
- On the one hand, the quotient established by the divider 19 of the air flow indication, by the speed of rotation which, as indicated above constitutes an indication of the engine load;
- on the other hand, the indication of the engine speed;
- possibly an indication of the temperature incorporated in a coded manner in the address.
Ces differentes informations, réunies dans le registre d'adresse 15 permettent d'effectuer une recherche dans la mémoire 14 pour trouver, pour chaque état de fonctionnement du moteur, une première information relative à la quantité de carburant à haut indice d'octane à injecter, c'est-à-dire à la durée d'ouverture de l'injecteur 6 et une seconde information relative à-la quantité de carburant à faible indice d'octane à injecter, c'està-dire à la durée d'ouverture de l'injecteur 11. These various pieces of information, gathered in the address register 15 make it possible to carry out a search in the memory 14 to find, for each operating state of the engine, a first piece of information relating to the quantity of fuel with high octane number to be injected , that is to say the duration of opening of the injector 6 and a second piece of information relating to the quantity of low-octane fuel to be injected, that is to say the duration of opening of the injector 11.
Ces informations sont transmises respectivement aux registres à décalage 20 et 21 et actionnent les compteurs programmables 22 et 25 associés chacun à un générateur d'impulsions 23,26. This information is transmitted respectively to the shift registers 20 and 21 and actuates the programmable counters 22 and 25 each associated with a pulse generator 23,26.
Chaque générateur émet des impulsions de durée calibrée correspondant aux temps d'ouverture respectifs des injecteurs 6 et 11, ces impulsions étant amplifiées dans les étages de puissance 24 et 27 et appliquées aux organes d'actionnement des injecteurs. Each generator emits pulses of calibrated duration corresponding to the respective opening times of the injectors 6 and 11, these pulses being amplified in the power stages 24 and 27 and applied to the actuating members of the injectors.
Lorsque le circuit de la Fig.2 comporte un capteur détecteur de détonation tel que celui représenté en trait mixte, en présence de détonation, le capteur 28 fournit un signal qui,après amplification par l'amplificateur 29 modifie les durées des signaux des générateurs d'impulsions 23 et 26 initialement programmées dans la mémoire 14, pour accroitre la quantité de carburant à haut indice d'octane et réduire la quantité de carburant à faible indice d'octane, jusqu'à disparition de l'anomalie détectée. When the circuit of Fig. 2 includes a detonation detector sensor such as that shown in phantom, in the presence of detonation, the sensor 28 provides a signal which, after amplification by the amplifier 29 modifies the signal durations of the generators d pulses 23 and 26 initially programmed in the memory 14, to increase the quantity of fuel with high octane number and reduce the quantity of fuel with low octane number, until disappearance of the detected anomaly.
On a supposé, dans ce qui précède, que l'injection était du type monopoint, c'est-à-dire qu'elle se fait en un point unique, situé dans le conduit d'admission, pour l'ensemble des cylindres d'un même moteur. Il va de soi qu'elle s'applique de la même façon avec une injection multipoints, c'est-à-dire une injection distincte pour chaque cylindre du moteur. Dans ce cas, il y a bien entendu un injecteur tel que 6 et un injecteur tel que 11 pour chaque cylindre. It has been assumed, in the foregoing, that the injection was of the single-point type, that is to say that it takes place at a single point, located in the intake duct, for all the cylinders d 'one engine. It goes without saying that it applies in the same way with a multipoint injection, that is to say a separate injection for each cylinder of the engine. In this case, there is of course an injector such as 6 and an injector such as 11 for each cylinder.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8006474A FR2478746A1 (en) | 1980-03-24 | 1980-03-24 | Different octane fuel mixing system for IC engine - uses twin fuel supplies with separately timed injectors to give mix controlled by preset memory to correspond to engine conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8006474A FR2478746A1 (en) | 1980-03-24 | 1980-03-24 | Different octane fuel mixing system for IC engine - uses twin fuel supplies with separately timed injectors to give mix controlled by preset memory to correspond to engine conditions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2478746A1 true FR2478746A1 (en) | 1981-09-25 |
| FR2478746B1 FR2478746B1 (en) | 1984-06-22 |
Family
ID=9240001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8006474A Granted FR2478746A1 (en) | 1980-03-24 | 1980-03-24 | Different octane fuel mixing system for IC engine - uses twin fuel supplies with separately timed injectors to give mix controlled by preset memory to correspond to engine conditions |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2478746A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2515268A1 (en) * | 1981-10-28 | 1983-04-29 | Inst Francais Du Petrole | AUTOMATIC ADJUSTMENT METHOD AND DEVICES FOR INTERNAL COMBUSTION ENGINES USING POLYCARBURANTS |
| WO1983003120A1 (en) * | 1982-03-10 | 1983-09-15 | Hoebeek, Johannes, Benjamin, Willem | Arrangement for the injection of fuel, like lpg, in liquid form |
| FR2525280A1 (en) * | 1982-04-20 | 1983-10-21 | Inst Francais Du Petrole | Automatic timing and richness adjuster for multi-fuel IC engine - has microprocessor evaluating characteristics of residual and fresh fuel using data reader from fuel supply pump |
| US4546732A (en) * | 1983-03-09 | 1985-10-15 | Toyota Jidosha Kabushiki Kaisha | Fuel injection apparatus for controlling the amount of alcohol and gasoline supplied to a mixed fuel engine |
| WO1994013941A1 (en) * | 1992-12-15 | 1994-06-23 | High Speed Tech Oy Ltd. | Method in a combustion engine process |
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| GB492857A (en) * | 1937-01-11 | 1938-09-28 | Daimler Benz Ag | Improvements in and connected with the fuel control of internal combustion engines |
| GB575934A (en) * | 1943-12-22 | 1946-03-12 | William Warren Triggs | Improvements in or relating to carburettors for internal combustion engines |
| GB607876A (en) * | 1944-07-17 | 1948-09-07 | Thompson Prod Inc | Improvements in or relating to fuel control for internal combustion engines |
| US2574321A (en) * | 1949-06-16 | 1951-11-06 | Standard Oil Dev Co | Process for operating internal-combustion engines and fuel therefor |
| FR1038039A (en) * | 1951-06-04 | 1953-09-24 | Method and arrangement for the operation of a combustion engine machine | |
| US2958317A (en) * | 1958-03-04 | 1960-11-01 | Campbell Pilcher | Anti-detonant system for internal combustion engines |
| FR2293597A1 (en) * | 1974-12-05 | 1976-07-02 | Bosch Gmbh Robert | DEVICE SERVING TO DETERMINE THE QUANTITY OF FUEL TO INJECT IN AN INTERNAL COMBUSTION ENGINE WITH MIXTURE COMPRESSION |
| DE2543166A1 (en) * | 1975-09-27 | 1977-04-07 | Franz Menke | Auxiliary fuel mixing system - has auxiliary fuel contained in separate tank and metered to secondary venturi |
| US4096829A (en) * | 1976-04-29 | 1978-06-27 | Spears George B | Water injection system for internal combustion engines |
-
1980
- 1980-03-24 FR FR8006474A patent/FR2478746A1/en active Granted
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB492857A (en) * | 1937-01-11 | 1938-09-28 | Daimler Benz Ag | Improvements in and connected with the fuel control of internal combustion engines |
| GB575934A (en) * | 1943-12-22 | 1946-03-12 | William Warren Triggs | Improvements in or relating to carburettors for internal combustion engines |
| GB607876A (en) * | 1944-07-17 | 1948-09-07 | Thompson Prod Inc | Improvements in or relating to fuel control for internal combustion engines |
| US2574321A (en) * | 1949-06-16 | 1951-11-06 | Standard Oil Dev Co | Process for operating internal-combustion engines and fuel therefor |
| FR1038039A (en) * | 1951-06-04 | 1953-09-24 | Method and arrangement for the operation of a combustion engine machine | |
| US2958317A (en) * | 1958-03-04 | 1960-11-01 | Campbell Pilcher | Anti-detonant system for internal combustion engines |
| FR2293597A1 (en) * | 1974-12-05 | 1976-07-02 | Bosch Gmbh Robert | DEVICE SERVING TO DETERMINE THE QUANTITY OF FUEL TO INJECT IN AN INTERNAL COMBUSTION ENGINE WITH MIXTURE COMPRESSION |
| DE2543166A1 (en) * | 1975-09-27 | 1977-04-07 | Franz Menke | Auxiliary fuel mixing system - has auxiliary fuel contained in separate tank and metered to secondary venturi |
| US4096829A (en) * | 1976-04-29 | 1978-06-27 | Spears George B | Water injection system for internal combustion engines |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2515268A1 (en) * | 1981-10-28 | 1983-04-29 | Inst Francais Du Petrole | AUTOMATIC ADJUSTMENT METHOD AND DEVICES FOR INTERNAL COMBUSTION ENGINES USING POLYCARBURANTS |
| EP0078736A1 (en) * | 1981-10-28 | 1983-05-11 | Institut Français du Pétrole | Process and device for the automatic control of the ignition and fuel/air-ratio of multi-fuel internal-combustion engines |
| WO1983003120A1 (en) * | 1982-03-10 | 1983-09-15 | Hoebeek, Johannes, Benjamin, Willem | Arrangement for the injection of fuel, like lpg, in liquid form |
| FR2525280A1 (en) * | 1982-04-20 | 1983-10-21 | Inst Francais Du Petrole | Automatic timing and richness adjuster for multi-fuel IC engine - has microprocessor evaluating characteristics of residual and fresh fuel using data reader from fuel supply pump |
| US4546732A (en) * | 1983-03-09 | 1985-10-15 | Toyota Jidosha Kabushiki Kaisha | Fuel injection apparatus for controlling the amount of alcohol and gasoline supplied to a mixed fuel engine |
| WO1994013941A1 (en) * | 1992-12-15 | 1994-06-23 | High Speed Tech Oy Ltd. | Method in a combustion engine process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2478746B1 (en) | 1984-06-22 |
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