FR2823534A1 - Method for increasing the power and couple of a common rail diesel engine, utilizes an electronic circuit that has a resistance to lower the high pressure sensor signal as seen by the engine calculator - Google Patents
Method for increasing the power and couple of a common rail diesel engine, utilizes an electronic circuit that has a resistance to lower the high pressure sensor signal as seen by the engine calculator Download PDFInfo
- Publication number
- FR2823534A1 FR2823534A1 FR0105063A FR0105063A FR2823534A1 FR 2823534 A1 FR2823534 A1 FR 2823534A1 FR 0105063 A FR0105063 A FR 0105063A FR 0105063 A FR0105063 A FR 0105063A FR 2823534 A1 FR2823534 A1 FR 2823534A1
- Authority
- FR
- France
- Prior art keywords
- electronic circuit
- pressure sensor
- high pressure
- common rail
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
section nnulaire.nnular section.
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Procédé pour augmenter la puissance et le couple d'un moteur diesel a système d' i niection et dispositif pour la mi se en _uvre du procédé L'invention se rapporte à un dispositif visant à augmenter la puissance Method for increasing the power and the torque of a diesel engine with an ignition system and device for carrying out the method The invention relates to a device for increasing the power
et le couple d'un moteur diesel de type " common rail ". and the torque of a common rail type diesel engine.
Dans un moteur diesel, pour assurer une bonne préparation du mélange carburant-air, le carburant doit être injecté dans la chambre de In a diesel engine, to ensure proper preparation of the fuel-air mixture, the fuel must be injected into the
combustion à une pression comprise généralement entre 350 et 2000 bars. combustion at a pressure generally between 350 and 2000 bars.
Le système d'injection des moteurs diesel comprend une partie basse pression (réservoir de carburant, filtre à carburant, pompe d'alimentation mécanique ou électrique avec soupape de décharge), et une partie haute pression comprenant: - une pompe haute pression; - des clapets de refoulement; - la tuyauterie de refoulement; The injection system for diesel engines comprises a low pressure part (fuel tank, fuel filter, mechanical or electrical supply pump with relief valve), and a high pressure part comprising: - a high pressure pump; - discharge valves; - the discharge piping;
- les ensembles injecteurs/porte injecteurs. - the injector / injector holder assemblies.
Les systèmes d'injection diesel haute pression sont à ce jour de sIx High pressure diesel injection systems are so far
grands types différents, qui peuvent être classés en deux groupes. large different types, which can be classified into two groups.
Un premier groupe, dans lequel la pression d'injection requise est toujours produite au moment de l'injection, ce premier groupe comprenant les systèmes suivants: - pompes d'injection en ligne, ou groupe d'injection, employés surtout pour les véhicules utilitaires; - pompes d'injection distributrices, employées dans la grande majorité des voitures particulières diesel à injection directe et les utilitaires légers, ainsi que pour les moteurs diesel à rotation rapide; - pompes d'injection monocylindres, dites pompes enfichables, pour les moteurs marins ou d'engins de chantier; - injecteurs-pompes (unit injector system) , dans lesquels la pompe d'injection et l'injecteur ne forment qu'un élément monté dans la culasse; A first group, in which the required injection pressure is always produced at the time of injection, this first group comprising the following systems: - in-line injection pumps, or injection group, used mainly for commercial vehicles ; - distributor injection pumps, used in the vast majority of direct-injection diesel passenger cars and light commercial vehicles, as well as for fast-rotating diesel engines; - single-cylinder injection pumps, called plug-in pumps, for marine or construction machinery; - unit injector systems, in which the injection pump and the injector form only one element mounted in the cylinder head;
- pompes unitaires à haute pression (unit pump system). - high pressure unit pumps.
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Un deuxiAme groupe, dans lequel la preson dnjeion e gAndrde indApendamment du gime e1 de charge: c'e sy&me dnJeuion A second group, in which the preson dnjeion e gAndrde regardless of the gime e1 of charge: it is sy & me dnJeuion
accumulateur d common rah ".common rah accumulator ".
Dans le common mil, un volume de ockage formant rAservoP de preion aumulaDon (le mil t e alimentd K par une pompe pions In the common millet, a storage volume forming a preion aumulaDon (the millet is fed K by a pawn pump
en gne ans s d il li par une pompe didb- in years if it was linked by a didb pump
pions radlaux (dans le cas des voitures palcuDAre0. Radial pins (in the case of palcuDAre0 cars.
La preson dans le raU peu1 re modulAe e1 maintenue constante par un rAgulateur de preson placd sur la pompe ou sur le raU, les vhlcules The preson in the modulAe raU is kept constant by a preson regulator placed on the pump or on the raU, the vehicles
u1Uitaires disposant par contre d'une rAgulatlon dbit-mA1rique. U1Uitaries, on the other hand, having a flow-mAgular rAgulatlon.
La haute preson gAndrde par la pompe module par le rAgula1eur The high preson gAndrde by the pump modulated by the regulator
e envoye vers le rail, puis du rall vers des lnjeeurs conventionnels. e sent to the rail, then from the rally to conventional lnjeurs.
Cinjeion propremen1 dite e initAe par le calculateur Aleronique qul 1mnsm au bon momen1 une impuRion de ge [nne de I'injeeur. Le common rail perme1 un dAcouplage phydque et tempor des fonions de gAndration de preson e1 dnjeulon. La preson dilnleion es1 en eMet gAndrde par une pompe hau1e preson sAparde qui a pas re en nchronisme avec les injeions, de soe que la preson e rAgle indApendammen1 du db d'ieion et du rAgime moteu Les in] eeurs commande Alerique flxent le dbut et le dbit dnjeuJon par lnant et la durde de leur aulvation, la durde d'ouveure et Cinjeion proper called e initAe by the Aleronic calculator that 1mnsm at the right moment an impuRion of gen [nne of the injector. The common rail allows a hydraulic and time decoupling of the generation functions from preson to dnjeulon. The preson dilnleion is in eMet gAndrde by a high pump preson sAparde which did not re in synchronism with the injunctions, so that the preson e rule Independently of the db of ion and the gime Diet the Inerers controls Alerique flxent the beginning and the flow rate for each game and the duration of their raising, the duration of the opening and
la preson du systAme derminant le db dnleulon. the preson of the system determining the db dnleulon.
Les capteurs de preson rAgnant dans Laccumulateur d'un s1Ame dnjeion diesel common raU son1 conventionneMemen1 du pe membrane en acier resso avec delon par 1auges de con1raintes. Les drcuits d'amplication, de caMbrage e1 de compensation sont rAunls sur un The pressure sensors prevailing in the accumulator of a common diesel diesel generator are conventionally made of the steel membrane coarse with delineation by strain reliefs. The amplification, wiring and compensation products are gathered on a
AsK log dans le boMier du capteur.AsK log in the sensor housing.
Les avantages du common raU son1 mulples: - posibiD de rdaliser cHement des inJeulons mulples ou fraulonndes; The advantages of the common raU are1 mulples: - possibility of realizing cuddly mulples or fraulonndes;
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- la pompe d'alimentation ne nécessite pas de couples d'entranement élevés, et est donc moins sollicitée que dans les systèmes d'injection conventionnels; - la régulation débit-métrique permet une température de carburant plus basse dans le système d'injection, par rapport à une régulation de pression; - la pression d'injection est librement sélectionnée dans la cartographie, le niveau de pression pouvant atteindre 1400 bars; - I'injection pilote et les injections multiples contribuent à réduire les émissions polluantes et les bruits de combustion; - la mise en _uvre du " common rail " n'entrane aucune transformation du moteur diesel, la pompe haute pression remplace la pompe d'injection et ies injecteurs sont placés dans la culasse - The feed pump does not require high drive torques, and is therefore less stressed than in conventional injection systems; - metric flow regulation allows a lower fuel temperature in the injection system, compared to pressure regulation; - the injection pressure is freely selected in the map, the pressure level being able to reach 1400 bars; - pilot injection and multiple injections help to reduce polluting emissions and combustion noises; - the implementation of the "common rail" does not entail any transformation of the diesel engine, the high pressure pump replaces the injection pump and the injectors are placed in the cylinder head
comme des ensembles conventionnels injecteur/porte injecteur. like conventional injector / injector holder assemblies.
Différentes conceptions de système d'injection " common rail " peuvent être trouvées dans les documents récents suivants: - demandes de brevet en France publiées sous les numéros 2 786 225, Different designs of "common rail" injection systems can be found in the following recent documents: - patent applications in France published under the numbers 2 786 225,
2 778 699;2,778,699;
- brevets délivrés aux Etats Unis sous les numéros 6 142 125, - patents granted in the United States under the numbers 6 142 125,
6 126 208, 6 050 611, 5 979 945, 5 852 977; 6,126,208, 6,050,611, 5,979,945, 5,852,977;
- demandes de brevet européen publiées sous les numéros 1 041 265, - European patent applications published under the numbers 1 041 265,
0971 119,0971 115,0969195;0971 119.0971 115.0969195;
- demandes internationales c'^--- brevet publiées sous les numéros - international applications this ^ --- patent published under the numbers
01/18382, 01/11222, 01/06111, 01/00986; 01/18382, 01/11222, 01/06111, 01/00986;
- demandes de brevet allemand publiées sous les numéros 19 859 175, - German patent applications published under the numbers 19 859 175,
19 858 861, 19 857 971.19,858,861, 19,857,971.
L'invention vise à fournir un dispositif permettant d'augmenter la puissance et le couple d'un moteur diesel à système d'injection " common rail ", ce dispositif étant: - facile à mettre en place, tant sur chame de fabrication que par un particulier non professionnel de la mécanique; J. The invention aims to provide a device for increasing the power and the torque of a diesel engine with a "common rail" injection system, this device being: - easy to install, both on the production line and by a non-professional individual in mechanics; J.
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- robuste et notamment peu sensible aux écarts de température et à l'humidité; - compact et donc facilement logeable; - peu onéreux; adaptable sur un très grand nombre de véhicules existants; - d'utilisation compatible avec les règlements en usage et les normes des constructeurs automobiles; - sans effet notable sur la longévité des moteurs sur lesquels il est monté. A cette fin, I'invention se rapporte, selon un premier aspect, à un procédé pour augmenter la puissance et le couple d'un moteur diesel à système d'injection de type a common rail ", ce système d'injection comprenant un capteur haute pression et un caltulateur, ce procédé comprenant une étape d'abaissement de la tension issue du capteur haute pression, la valeur abaissée de tension étant adressée au calculateur de sorte à - robust and in particular not very sensitive to temperature variations and humidity; - compact and therefore easily accommodated; - cheap; adaptable to a very large number of existing vehicles; - of use compatible with the regulations in use and the standards of the automobile manufacturers; - without significant effect on the longevity of the engines on which it is mounted. To this end, the invention relates, according to a first aspect, to a method for increasing the power and the torque of a diesel engine with a common rail type injection system, this injection system comprising a sensor high pressure and a calculator, this method comprising a step of lowering the voltage from the high pressure sensor, the lowered voltage value being sent to the computer so that
provoquer une augmentation du temps d'injection. cause an increase in injection time.
Selon une réalisation particulière, I'abaissement de la tension est réalisé According to a particular embodiment, the lowering of the tension is carried out
lorsque cette tension est supérieure à une valeur seuil prédéterminée. when this voltage is greater than a predetermined threshold value.
L'invention se rapporte, selon un deuxième aspect à un dispositif permettant la mise en _uvre du procédé ci-dessus, ce dispositif comprenant un circuit électronique assurant ledit abaissement de tension à l'aide d'au The invention relates, according to a second aspect to a device allowing the implementation of the above method, this device comprising an electronic circuit ensuring said voltage lowering using
moins une résistance placée en série. minus a resistor placed in series.
Selon diverses réalisations, le disrositif présenté les caractères suivants, éventuellement combinés: - le circuit électronique est logé dans une bo^'te sensiblement étanche, les ports d'entréelsortie de ce circuit étant reliés à deux connecteurs de branchement, vers le capteur de pression et vers le caltulateur respectivement; - les câbles reliant les connecteurs aux ports d'entrée/sortie du circuit électronique sont souples et sensiblement étanches, le circuit According to various embodiments, the device presented with the following characters, possibly combined: - the electronic circuit is housed in a substantially sealed box, the input ports of this circuit being connected to two connection connectors, to the pressure sensor and to the calculator respectively; - the cables connecting the connectors to the input / output ports of the electronic circuit are flexible and substantially waterproof, the circuit
électronique étant encapsulé dans la bo^'te. electronic being encapsulated in the box.
s ^ s D'autres objels et avantages de [inntion apparaUront au cours de la s ^ s Other objectives and advantages of [inntion will become apparent during the
descrlption suivante de modes de rdalisation, description qui va Atre eMeude following description of implementation modes, description which will be displayed
en se rAfArant aux desns annexs, dans lesquels: - gure 1 e une vue hAmaque d'un boMier additonnel et de ses cAbles de branchement; - [gure 2 e un hAma d'une cae eronue logde dans le by referring to the appended drawings, in which: - Figure 1 is a schematic view of an additional box and its connection cables; - [gure 2 e a hAma of a cae eronue logde in the
boMier de la figure 1, selon un mode de rdaUsation. boMier of figure 1, according to a rdaUsation mode.
Dans les syAmes d'inleion mmon raU, ainsl qu'0 a Atd d prAcAdemment, le temps d'inieion et la preson du carburant sont liAs par la caographle du calculateur, information qui n'est pas facHement accessible et modifiable. Ceains prAparateurs de moteur proposent le changement pur et mple de puce euronlque ou la re-programmaton, ce qui e coOteux et complexe. bier addlonnel lon Pln-on d'uUsion beauup plus simple. comprend en eMet: - un ccuR eronique 1 log dans une boMe 2 senblement Atanche; - un cAble souple 3 et sensiblement Atanche rebant les pos d'entrdeoie de cae Aleuronlque deux cosses de branchements 15, ce cAble souple Atant pouu d'un branchement 6 enTouenY. _ Les cosses 15 ou conneeurs sont de pe connu en sol et notamment ldenques ou adaptables ceux employs par les conrueur In mmon raU inion systems, as well as 0 to Atd d previously, the initiation time and fuel preson are linked by the caograph of the computer, information which is not easily accessible and modifiable. These engine preparers offer the pure and simple change of euronlque chip or the re-programming, which is expensive and complex. bier addlonnel lon Pln-on for a much simpler Beauup use. includes as eMet: - an eronic ccuR 1 log in a boMe 2 markedly Atanche; - a flexible cable 3 and substantially Atanche rebating the pos of interconnection of cae Aleuronlque two connection lugs 15, this flexible cable Having a connection for 6 enTouenY. _ The pods 15 or conneeurs are of known pe in soil and in particular ldenques or adaptable those used by the conrueur
Ces cosses 4,5 sont par exemple commerciaUsAes par la sociAtd Sicma. These lugs 4,5 are, for example, sold by the company Sicma.
Le drcuit Aleronique 2 reprAsentd en gure 2 comprend quatre pos The Aleronique 2 product shown in gure 2 includes four pos
d'entrAsoie 7,8,9,10.7,8,9,10.
Le premler po 7 e deinA re conne6 mae du capteur de The first poin 7 e deinA re cone6 mae of the sensor
3Q preson du syAme d'inleion.3Q preson of the inion syAme.
Le deu6me po 8 corspond au signaUssu dud our de psion. The second po 8 corsponds to the sign of our psion.
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Les troisième et quatrième ports correspondent au signal envoyé audit The third and fourth ports correspond to the signal sent to said audit
capteur par le circuit électronique 1. sensor by electronic circuit 1.
Ainsi que le comprendra l'homme du métier, le circuit électronique 1 intercale une résistance sur la tension d'entrée du capteur, à partir d'un seuil de déclenchement, ce seuil étant prédéterminé par réglage du As will be understood by a person skilled in the art, the electronic circuit 1 inserts a resistance on the input voltage of the sensor, from a triggering threshold, this threshold being predetermined by adjusting the
potentiomètre 11.potentiometer 11.
Le bo^'tier additionnel envoie ainsi une information déformée au calculateur, en lui " faisant croire " que la pression de carburant est faible, le calculateur augmentant alors le temps d'injection, pour tenir compte de cette The additional unit thus sends distorted information to the computer, making it "believe" that the fuel pressure is low, the computer then increasing the injection time, to take this into account.
pression d'injection apparemment faible. apparently low injection pressure.
Lorsque le capteur de pression est de type pièzo, la demanderesse a constaté que la tension délivrée par ce capteur est habituellement du type suivant: - O volt: pas de pression; - 1,3 volts: pression d'injection de l'ordre de 300 bars; When the pressure sensor is of the pizo type, the applicant has observed that the voltage delivered by this sensor is usually of the following type: - O volt: no pressure; - 1.3 volts: injection pressure of the order of 300 bars;
- 5 volts: pression d'injection de l'ordre de 1300 bars. - 5 volts: injection pressure of the order of 1300 bars.
A l'issue d'essais, la demanderesse a constaté que la chute de la tension crantée à l'aide d'une résistance placée en série provoque la chute de la tension de sortie, le processus d'injection et la pression de carburant étant modifiés par le calculateur tout en restant dans les tolérances données par les constructeurs. L'alimentation du circuit 1 est assurée par la tension continue et la After tests, the Applicant has found that the drop in notched voltage using a resistor placed in series causes the drop in output voltage, the injection process and the fuel pressure being modified by the computer while remaining within the tolerances given by the manufacturers. The supply of circuit 1 is provided by the DC voltage and the
masse du capteur de pression. - ^-pressure sensor mass. - ^ -
L'intercalation du bo^'tier, qui ne travaille que sur les informations du capteur haute pression du " common rail " est rapide et simple, et peut étre The intercalation of the box, which works only on the information of the high pressure sensor of the "common rail" is fast and simple, and can be
effectuée par un non professionnel. performed by a lay person.
Seu le la valeu r du seui l sera pré-réglée pa r un profession nel, le cas échéant, pour tenir compte du type de véhicule et des souhaits de l'utilisateur. L'augmentation de puissance obtenue à l'aide du bo^'tier tel que décrit ci-dessus est de l'ordre de 15 à 40%, I'augmentation de couple étant de Only the value of the threshold will be pre-adjusted by a professional, if necessary, to take account of the type of vehicle and the wishes of the user. The increase in power obtained using the housing as described above is of the order of 15 to 40%, the increase in torque being
l'ordre de 20 à 50 %.around 20 to 50%.
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Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0105063A FR2823534B1 (en) | 2001-04-12 | 2001-04-12 | METHOD FOR INCREASING THE POWER AND TORQUE OF A DIESEL ENGINE WITH INJECTION SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0105063A FR2823534B1 (en) | 2001-04-12 | 2001-04-12 | METHOD FOR INCREASING THE POWER AND TORQUE OF A DIESEL ENGINE WITH INJECTION SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2823534A1 true FR2823534A1 (en) | 2002-10-18 |
| FR2823534B1 FR2823534B1 (en) | 2003-10-03 |
Family
ID=8862303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0105063A Expired - Fee Related FR2823534B1 (en) | 2001-04-12 | 2001-04-12 | METHOD FOR INCREASING THE POWER AND TORQUE OF A DIESEL ENGINE WITH INJECTION SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2823534B1 (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766864A (en) * | 1985-03-29 | 1988-08-30 | Nippondenso Co., Ltd. | Fuel injection control based on spill port opening timing correction |
| JPH01116271A (en) * | 1987-10-28 | 1989-05-09 | Nippon Denso Co Ltd | Fuel injection quantity control device |
| EP0536676A2 (en) * | 1991-10-09 | 1993-04-14 | Zexel Corporation | Electronic fuel-injection device having read/write memory for storing actuator correction value |
| JPH09112297A (en) * | 1995-10-18 | 1997-04-28 | Nissan Diesel Motor Co Ltd | Variable governor characteristic fuel injection device |
| US5852977A (en) | 1996-09-13 | 1998-12-29 | Ncr Corporation | Self service print terminal |
| US5979945A (en) | 1996-12-07 | 1999-11-09 | Usuikokusai Sangyo Kaisha Ltd. | Common rail |
| FR2778699A1 (en) | 1998-05-14 | 1999-11-19 | Siemens Ag | Valve control device e.g. for common-rail diesel direct fuel injection system for vehicle combustion engine |
| EP0969165A1 (en) | 1998-06-30 | 2000-01-05 | Roger Mondelin S.A. | Apparatus for lifting and handling sheet-material for covering ceilings |
| EP0971115A2 (en) | 1998-07-08 | 2000-01-12 | Isuzu Motors Limited | Common-rail fuel injection system |
| EP0971119A2 (en) | 1998-07-08 | 2000-01-12 | Isuzu Motors Limited | Common-rail fuel-injection system |
| US6050611A (en) | 1997-03-04 | 2000-04-18 | Usui Kokusai Sangyo Kaisha Limited | Common rail |
| FR2786225A1 (en) | 1998-11-24 | 2000-05-26 | Inst Francais Du Petrole | Pressure fluctuation damping for IC engine direct fuel injection system, comprises series or teed tubes, and/or absorbent inserts, added to injector delivery pipes, or to common rail |
| DE19857971A1 (en) | 1998-12-16 | 2000-06-21 | Bosch Gmbh Robert | Controlling an IC engine esp. for IC engine with common rail fuel injection system so that at least one pump delivers fuel in storage |
| DE19857972A1 (en) * | 1998-12-16 | 2000-06-21 | Bosch Gmbh Robert | Method and device for controlling an internal combustion engine |
| DE19858861A1 (en) | 1998-12-19 | 2000-06-29 | Bosch Gmbh Robert | Common-rail system for IC engines has minimum contact faces between high pressure pump and e.g. engine block |
| DE19859175A1 (en) | 1998-12-21 | 2000-06-29 | Siemens Ag | Fuel supply system venting method for diesel engine common rail systems |
| US6126208A (en) | 1997-03-03 | 2000-10-03 | Usui Kokusai Sangyo Kaisha Limited | Common rail and method of manufacturing the same |
| EP1041265A2 (en) | 1999-04-02 | 2000-10-04 | Isuzu Motors Limited | Common-rail fuel-injection system |
| US6142125A (en) | 1997-08-22 | 2000-11-07 | Isuzu Motors Limited | Supply pump for common rail fuel injection system |
-
2001
- 2001-04-12 FR FR0105063A patent/FR2823534B1/en not_active Expired - Fee Related
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766864A (en) * | 1985-03-29 | 1988-08-30 | Nippondenso Co., Ltd. | Fuel injection control based on spill port opening timing correction |
| JPH01116271A (en) * | 1987-10-28 | 1989-05-09 | Nippon Denso Co Ltd | Fuel injection quantity control device |
| EP0536676A2 (en) * | 1991-10-09 | 1993-04-14 | Zexel Corporation | Electronic fuel-injection device having read/write memory for storing actuator correction value |
| JPH09112297A (en) * | 1995-10-18 | 1997-04-28 | Nissan Diesel Motor Co Ltd | Variable governor characteristic fuel injection device |
| US5852977A (en) | 1996-09-13 | 1998-12-29 | Ncr Corporation | Self service print terminal |
| US5979945A (en) | 1996-12-07 | 1999-11-09 | Usuikokusai Sangyo Kaisha Ltd. | Common rail |
| US6126208A (en) | 1997-03-03 | 2000-10-03 | Usui Kokusai Sangyo Kaisha Limited | Common rail and method of manufacturing the same |
| US6050611A (en) | 1997-03-04 | 2000-04-18 | Usui Kokusai Sangyo Kaisha Limited | Common rail |
| US6142125A (en) | 1997-08-22 | 2000-11-07 | Isuzu Motors Limited | Supply pump for common rail fuel injection system |
| FR2778699A1 (en) | 1998-05-14 | 1999-11-19 | Siemens Ag | Valve control device e.g. for common-rail diesel direct fuel injection system for vehicle combustion engine |
| EP0969165A1 (en) | 1998-06-30 | 2000-01-05 | Roger Mondelin S.A. | Apparatus for lifting and handling sheet-material for covering ceilings |
| EP0971115A2 (en) | 1998-07-08 | 2000-01-12 | Isuzu Motors Limited | Common-rail fuel injection system |
| EP0971119A2 (en) | 1998-07-08 | 2000-01-12 | Isuzu Motors Limited | Common-rail fuel-injection system |
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|---|---|
| FR2823534B1 (en) | 2003-10-03 |
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