EP1463887B1 - Internal combustion engine starting system - Google Patents

Internal combustion engine starting system Download PDF

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Publication number
EP1463887B1
EP1463887B1 EP03712217A EP03712217A EP1463887B1 EP 1463887 B1 EP1463887 B1 EP 1463887B1 EP 03712217 A EP03712217 A EP 03712217A EP 03712217 A EP03712217 A EP 03712217A EP 1463887 B1 EP1463887 B1 EP 1463887B1
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EP
European Patent Office
Prior art keywords
fuel
ball
accumulator
plate
rod
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.)
Expired - Lifetime
Application number
EP03712217A
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German (de)
French (fr)
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EP1463887A1 (en
Inventor
Eric Condemine
Vincent Bassot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Publication of EP1463887A1 publication Critical patent/EP1463887A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N99/00—Subject matter not provided for in other groups of this subclass
    • F02N99/002—Starting combustion engines by ignition means
    • F02N99/006—Providing a combustible mixture inside the cylinder
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • 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
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/001—Arrangements thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop

Definitions

  • the invention relates to a starting system for engines with a common fuel injection rail.
  • the patent application US5839413 discloses a system that can reduce the starting time of an engine with a common rail.
  • the principle of this system is to communicate the common rail not only to a high pressure pump but also to a low pressure circuit with two calibrated check valves (a first low pressure and a second high pressure).
  • the low pressure circuit has a low pressure accumulator which makes it possible to maintain a stable pressure lower than that delivered when the high pressure pump is at full load.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a simple starting system comprising a redundant compression means easily integrable to adapt the existing engines to the technique "stop and start”.
  • the elastic means comprises a spring, a hollow plate fixed between said electromagnetic means and said storage means and the ball capable of plugging the hollow of said plate and secured to said spring allowing, according to the relative pressures between the accumulator means and said at least one storage means, the communication between the latter two.
  • the actuator means comprises, according to the invention, a first rod located substantially on the central axis of said tunnel formed by the coil, a plate fixed substantially perpendicular to an end of said first rod and a second rod which, in extension of the other end of the first rod, is in contact with said ball and has a diameter smaller than the hollow of said plate for following or initiating the movement of said ball.
  • the plate further comprises, advantageously according to the invention, at least one groove able to pass in its hollow fuel when said plate is against said electromagnetic means.
  • the supply means advantageously comprise a pump supplying fuel to said accumulator means and a non-return valve allowing a direction of circulation of the fuel only from the pump to the said accumulator means.
  • the starting system 1 mainly comprises a common rail 2, feed means 3, injection means 4 and a pressurized fuel storage device 5.
  • the power supply means 3 consist of a high pressure pump 6 of a pipe 7 and a non-return valve 8. This pump will compress and send fuel under pressure to the common rail 2 through the conduit 7
  • the check valve 8 mounted in the same duct, is used to prevent fuel back-up in the pump 6 when the fuel pressure is higher in the common rail 2 than at the outlet of said pump.
  • Injection means 4 in the example illustrated in FIG. figure 1 , Mainly comprise for each cylinder of said engine a pipe 9 and an injector 10.
  • the pipe 9 allows the injector 10 to be connected to the common rail 2 and thus to be fed with fuel under pressure. Indeed, each injector can operate only with a fuel under a predetermined minimum pressure. Thus for a four-cylinder engine, it will be necessary to use four sets of pipe 9 - injector 10.
  • the pressurized fuel storage device 5 is, in the same example illustrated, in direct communication with the common rail via a conduit 11.
  • said storage device comprises storage means 12 and opening means 13.
  • the storage means 12 mainly comprise an enclosure 14 and a sensor 15. This first can contain fuel at a pressure at least also that supplied by the high pressure pump 6.
  • the sensor 15 makes it possible to determine the pressure of the fuel at the same time. inside said enclosure.
  • the opening means 13 allow the communication between the enclosure 14 and the conduit 11.
  • These opening means comprise first elements with elastic properties 16 and second with electromagnetic properties 17, these two series of elements being mechanically linked.
  • Said first elements comprise a spring 18, a ball 19, a hollow spring seat 20 and a hollow ball seat 21.
  • the spring seat 20 is used not only to maintain the orientation of said spring but also thanks to its hollow to make communicating fuel between the opening means 13 and the storage means 12.
  • the spring 18 comprises at the end opposite to said spring seat the ball 19. This, according to the responses of the spring to the applied stresses, will print a translational movement able to open or close the hollow of the ball seat 21 and thus allow the fuel communication between the spring seat 20 and the duct 11.
  • Said second elements comprise control electrodes 22, a coil 23 and an actuator 24.
  • the electrodes 22 supply current in the coil 23 so as to induce a magnetic field capable of moving said actuator.
  • the spool 23 is mounted against the ball seat 21 so that its inner diameter is centered on the same point as that of said hollow of the ball seat 21.
  • the actuator 24 comprises a circular plate 25, a first rod 26 and a second rod 27.
  • the plate 25 has magnetic characteristics such that, during the passage of the current in the coil 23, it will be attracted to the latter.
  • the plate 25 has three grooves 28 equidistant from each other on the face vis-à-vis with said coil.
  • the first rod 26 is integral with said plate so that said rod is found substantially along the central axis of the inner surface of the coil 23. As an extension of the first rod 26 is fixed the second rod 27. This last is thinner than the first rod 26 but also that said ball seat recess so that it can pass through.
  • the second rod 27 is in permanent contact with the ball 19 which makes it possible to mechanically link the elastic elements 16 and the electromagnetic elements 17.
  • the actuator 24 will be moved away from the coil 23 or when the coil 23 receives current, the actuator 24 will dislodge the ball 19 from its seat 21.
  • the storage means 14 which is filled with fuel under low pressure, is not operational.
  • the sensor 15 detects it and does not allow the opening of the storage device during startup.
  • the engine is then started and through the distribution element, the high pressure pump 6 is started.
  • the inertia of the pump 6 does not immediately provide the minimum pressure necessary for the injectors 10. After this minimum pressure exceeded, the pump 6 will continue to increase the pressure in the common rail 2, fuel will then be present in the duct 11, around the plate 25 and in the hollow interior volume of the coil 23, moreover, the first injections are made.
  • the engine is then started.
  • the spring 18 calibrated according to this threshold pressure will allow the passage of fuel and thus allow the filling of the storage means 14. According to the relative pressure between the common rail 2 and the storage medium 14, the spring 18 will contract or relax so that, respectively, the fuel pressure contained in the storage means 14 increases or remains stable.
  • the driver decides to stop the engine, the high pressure pump 6 is stopped.
  • the pressure in the common rail 2 drops, the spring 18 will relax to press the ball 19 on its seat 21 and thus trap pressurized fuel in the storage means 14.
  • the engine is then stopped and the storage device 5, operational .
  • the sensor 15 detects that the pressure is sufficient and then allows the release of the fuel contained in the storage means 14 to the common rail 2. This is achieved by the activation of the coil 23.
  • the actuator is then be drawn against the coil 23 and thus push the ball 19 of its seat 21 through the rods 26 and 27.
  • the fuel contained in the storage means 14 is then released and will pass successively through the hollow of the spring seat 20, the hollow of the ball seat (around the rod 27), the inside diameter of the coil 23 (around the rod 26), the grooves 28 of the plate 25 and the duct 11.
  • the non-return valve 8 blocks the pipe 7 and thus makes it possible to keep the pressure, due to the release, constant in the common rail 2.
  • the pressure in the common rail 2 is then sufficient for a computer (not shown) of the engine to allow the operation of the injectors 10.
  • the high pressure pump 6 being set in motion from the engine distribution elements, the first injections will have an accelerating effect on the performance of the pump 6 which will therefore more quickly increase in pressure.
  • the non-return valve 8 of the pipe 7 will allow communication between said common rail and the pump 6 for the latter to take over from said storage device 5.
  • the coil 23 is then preferentially deactivated.
  • the storage means 14 is sized so that two cycles of injections can be performed before the high pressure pump provides a pressure greater than that of the common rail 2.
  • the spring 18 calibrated according to this threshold pressure will allow the passage of fuel and thus allow the filling of the storage means 14.
  • the storage device 5 cycle repeating as previously explained to allow said engine to acquire a start sufficiently short to adapt to the technique called "stop and go”.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the location of the storage device may be different.
  • the movement of the plate 24 can be made more linear by stops accompanying the sliding of said actuator along the storage device 5.
  • the non-return valve 8 can be integrated with the high pressure pump 6.
  • the The system can operate without a pressure sensor 15 and release the pressure contained in the storage means 14 by means of a timer or other device.

Abstract

The invention relates to a starting system ( 1 ) for an internal combustion engine comprising pressurized fuel supply means ( 3 ), an accumulator means ( 2 ), which is supplied with pressurized fuel by said supply means, and at least one injection means ( 4 ) which is supplied with fuel by the accumulator means ( 2 ). According to the invention, the system also comprises a device for storing pressurized fuel ( 5 ), which is supplied due to the pressure in the accumulator means. At start-up, the aforementioned fuel storage device can supply the stored fuel in such a way as to provide a second fuel compression means which enables the engine to start up more rapidly. The invention is particularly suitable for use in the area of common-rail engines.

Description

L'invention se rapporte à un système de démarrage pour moteurs dotés d'une rampe commune d'injection de carburant.The invention relates to a starting system for engines with a common fuel injection rail.

De nos jours, les constructeurs automobiles cherchent les technologies qui leur permettraient de concevoir des véhicules automobiles moins polluants. Tout d'abord parce que les conducteurs des véhicules sont plus sensibles que jamais à l'écologie mais surtout parce que les normes sur les rejets qui entrent en vigueur sont de plus en plus sévères.Nowadays, automakers are looking for technologies that would allow them to design cleaner vehicles. Firstly because the drivers of the vehicles are more sensitive than ever to the ecology but especially because the standards on the rejections which come into force are more and more severe.

Une des solutions envisagées par les constructeurs pour réduire les rejets polluants consiste à arrêter du moteur lorsque celui-ci n'est pas sollicité, comme par exemple à un feu rouge. Cette technique est plus généralement appelée "arrêt et départ" (en anglais "stop and start"). En effet, l'arrêt du moteur va permettre d'abaisser la consommation en carburant et donc de diminuer les rejets polluants. Cette baisse des rejets est significative surtout en ville où la forte concentration des signalisations routières oblige à régulièrement s'arrêter et où il se forme souvent des bouchons.One of the solutions considered by manufacturers to reduce pollutant emissions is to stop the engine when it is not requested, such as at a red light. This technique is more generally called "stop and start". Indeed, stopping the engine will help lower fuel consumption and thus reduce pollutant emissions. This decline in emissions is significant especially in the city where the high concentration of road signs requires regular stops and where plugs often form.

Cette technique "arrêt et départ" s'applique facilement avec les moteurs dont l'injection dans chaque cylindre est pilotée individuellement. Cependant tel n'est pas le cas avec les moteurs dotés d'une rampe commune (en anglais "common rail") qui, elle, gère l'injection de plusieurs cylindres en même temps. En effet, le démarrage actuel de ces moteurs dotés d'une rampe commune à jet de carburant haute pression est trop lent pour que la technique "arrêt et départ" leur soit applicable. Cette lenteur est induite par le temps requis à la pompe haute pression pour compresser le carburant présent dans la rampe commune jusqu'à la pression minimale nécessaire au fonctionnement des injecteurs. Ainsi, pour que les moteurs à rampe commune puissent fonctionner en mode "arrêt et départ", il est nécessaire de raccourcir leur temps de démarrage.This "stop and start" technique is easily applied with engines whose injection into each cylinder is controlled individually. However, this is not the case with engines with a common rail, which in turn manages the injection of several cylinders at the same time. Indeed, the current start of these engines with a common high-pressure fuel jet rail is too slow for the "stop and start" technique to be applicable to them. This slowness is induced by the time required for the high-pressure pump to compress the fuel present in the common rail to the minimum pressure necessary for the operation of the injectors. Thus, for the common-rail motors to operate in "stop and go" mode, it is necessary to shorten their start-up time.

La demande de brevet US5839413 divulgue un système qui permet de réduire le temps de démarrage d'un moteur doté d'une rampe commune. Le principe de ce système consiste à faire communiquer la rampe commune non seulement à une pompe haute pression mais également à un circuit basse pression grâce à deux clapets anti-retours tarés (un premier basse pression et un deuxième haute pression). Le circuit basse pression possède un accumulateur basse pression qui permet de maintenir une pression stable inférieure à celle délivrée lorsque la pompe haute pression est à pleine charge.The patent application US5839413 discloses a system that can reduce the starting time of an engine with a common rail. The principle of this system is to communicate the common rail not only to a high pressure pump but also to a low pressure circuit with two calibrated check valves (a first low pressure and a second high pressure). The low pressure circuit has a low pressure accumulator which makes it possible to maintain a stable pressure lower than that delivered when the high pressure pump is at full load.

Ainsi au démarrage alors que la pompe haute pression est mise en marche, le circuit basse pression compresse déjà le carburant dans la rampe commune. Puis, quand la pompe haute pression exerce une pression supérieure à celle régnant dans le circuit basse pression, le clapet basse pression, qui laissait passer jusqu'alors le flux basse pression, va se fermer au profit du deuxième clapet. La rampe commune est finalement mise en pression uniquement par la pompe haute pression. Le temps de montée en pression grâce à ce système est donc raccourci. Cependant cette technique n'est pas satisfaisante d'une part parce qu'elle est trop complexe à mettre en oeuvre et d'autre part parce qu'elle n'est pas assez rapide pour que son application à la technique "arrêt et départ" soit agréable à l'usage.Thus at startup while the high pressure pump is turned on, the low pressure circuit already compresses the fuel in the common rail. Then, when the high pressure pump exerts a pressure greater than that prevailing in the low pressure circuit, the low pressure valve, which previously let the low pressure flow, will close in favor of the second valve. The common rail is finally put under pressure only by the high pressure pump. The pressure rise time with this system is shortened. However this technique is unsatisfactory on the one hand because it is too complex to implement and on the other hand because it is not fast enough for its application to the technique "stop and start" be pleasant to use.

Il est connu du document US 20010054412 , un système de type « common rail » comportant un moyen accumulateur de pression, et des moyens à la fois élastique et électromagnétique pour établir une communication entre l'accumulateur de pression et le common rail. Toutefois, ce dispositif est relativement complexe, l'accumulateur étant associé à une chambre pressurisée remplie d'azote. De plus dans ce système, un actionneur est disposé de chaque côté d'une paroi, avec des risques de fuite.It is known from the document US 20010054412 , a common rail type system comprising a pressure accumulator means, and both elastic and electromagnetic means for establishing communication between the pressure accumulator and the common rail. However, this device is relatively complex, the accumulator being associated with a pressurized chamber filled with nitrogen. In addition in this system, an actuator is disposed on each side of a wall, with risks of leakage.

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant un système de démarrage simple comportant un moyen de compression redondant facilement intégrable en vue d'adapter les moteurs existants à la technique "arrêt et départ".The object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a simple starting system comprising a redundant compression means easily integrable to adapt the existing engines to the technique "stop and start".

A cet effet, l'invention se rapporte à un système de démarrage pour moteur à combustion interne comprenant des moyens d'alimentation de carburant sous pression, un moyen accumulateur fourni en carburant sous pression par lesdits moyens d'alimentation, au moins un moyen d'injection alimenté en carburant par le moyen accumulateur, un dispositif stockeur de carburant sous pression s'alimentant grâce à la pression régnant dans ledit moyen accumulateur et étant apte à fournir au démarrage ledit carburant stocké, le dispositif stockeur, en communication directe avec ledit moyen accumulateur, comportant au moins un moyen de stockage, une bille pour ouvrir ou fermer la communication entre le dispositif stockeur et le moyen accumulateur et des moyens d'ouverture agissant sur la bille et comportant des moyens électromagnétiques et des moyens élastiques. Ce système se caractérise de plus en ce que

  • les moyens électromagnétiques et élastiques sont mécaniquement liés par un moyen actionneur déplaçant la bille pour ouvrir ou fermer la communication et piloté sélectivement par lesdits moyens électromagnétiques et lesdits moyens élastiques de manière à limiter l'énergie à fournir pour piloter ledit système de démarrage pour permettre audit moteur de démarrer plus rapidement et ;
  • les moyens électromagnétiques comportent une bobine générant un champ magnétique apte à déplacer le moyen actionneur et dont le diamètre intérieur forme un tunnel entre ledit au moins un moyen de stockage et le moyen accumulateur et une première tige située sensiblement sur l'axe central dudit tunnel formé par la bobine, un plateau fixé sensiblement perpendiculairement à une extrémité de ladite première tige - ledit plateau étant attiré par la bobine lors du passage d'un courant dans la bobine et une deuxième tige qui, en prolongement de l'autre extrémité de la première tige, est en contact avec la bille permettant de suivre ou d'initier le mouvement de la bille.
For this purpose, the invention relates to a starting system for an internal combustion engine comprising means for supplying fuel under pressure, an accumulator means supplied with fuel under pressure by said supply means, at least one means for injection fueled by the accumulator means, a device for storing pressurized fuel fed by the pressure in said accumulator means and being able to provide at startup said stored fuel, the storage device, in direct communication with said means accumulator, comprising at least one storage means, a ball for opening or closing the communication between the storage device and the accumulator means and opening means acting on the ball and comprising electromagnetic means and elastic means. This system is further characterized in that
  • the electromagnetic and elastic means are mechanically connected by an actuator means displacing the ball to open or close the communication and selectively controlled by said electromagnetic means and said elastic means so as to limit the energy to be supplied to control said starter system to enable said engine to start faster and;
  • the electromagnetic means comprise a coil generating a magnetic field capable of moving the actuator means and whose inner diameter forms a tunnel between said at least one storage means and the accumulator means and a first rod located substantially on the central axis of said tunnel formed by the coil, a plate fixed substantially perpendicular to one end of said first rod - said plate being attracted by the coil during the passage of a current in the coil and a second rod which, as an extension of the other end of the first rod, is in contact with the ball to follow or initiate the movement of the ball.

Avantageusement, les moyens élastiques selon l'invention comporte un ressort, une plaque creuse fixée entre lesdits moyens électromagnétiques et ledit moyen de stockage et la bille apte à boucher le creux de ladite plaque et solidaire dudit ressort permettant, suivant les pressions relatives entre le moyen accumulateur et ledit au moins un moyen de stockage, la communication entre ces deux derniers.Advantageously, the elastic means according to the invention comprises a spring, a hollow plate fixed between said electromagnetic means and said storage means and the ball capable of plugging the hollow of said plate and secured to said spring allowing, according to the relative pressures between the accumulator means and said at least one storage means, the communication between the latter two.

De manière avantageuse, le moyen actionneur comporte, selon l'invention, une première tige située sensiblement sur l'axe central dudit tunnel formé par la bobine, un plateau fixé sensiblement perpendiculairement à 'une extrémité de ladite première tige et une deuxième tige qui, en prolongement de l'autre extrémité de la première tige, est en contact avec ladite bille et possède un diamètre inférieur au creux de ladite plaque permettant de suivre ou d'initier le mouvement de ladite bille. Le plateau comporte en plus, avantageusement selon l'invention, au moins une rainure apte à laisser passer dans son creux du carburant lorsque ledit plateau est contre ledit moyen électromagnétique.Advantageously, the actuator means comprises, according to the invention, a first rod located substantially on the central axis of said tunnel formed by the coil, a plate fixed substantially perpendicular to an end of said first rod and a second rod which, in extension of the other end of the first rod, is in contact with said ball and has a diameter smaller than the hollow of said plate for following or initiating the movement of said ball. The plate further comprises, advantageously according to the invention, at least one groove able to pass in its hollow fuel when said plate is against said electromagnetic means.

Selon l'invention, les moyens d'alimentation comportent, avantageusement, une pompe alimentant en carburant ledit moyen accumulateur et un clapet anti-retour autorisant un sens de circulation du carburant uniquement de la pompe vers ledit moyen accumulateur.According to the invention, the supply means advantageously comprise a pump supplying fuel to said accumulator means and a non-return valve allowing a direction of circulation of the fuel only from the pump to the said accumulator means.

D'autres particularités et avantages apparaitront à la lecture de la description ci-après faite en référence aux figures dans lesquelles:

  • la figure 1 est une vue schématique d'ensemble du système de démarrage selon l'invention;
  • la figure 2 est une vue schématique du dispositif s stockeur de carburant selon l'invention;
  • la figure 3 est une vue de l'actionneur selon l'invention.
Other particularities and advantages will appear on reading the description below with reference to the figures in which:
  • the figure 1 is a schematic overview of the starter system according to the invention;
  • the figure 2 is a schematic view of the fuel storage device according to the invention;
  • the figure 3 is a view of the actuator according to the invention.

Dans l'exemple illustré à la figure 1, on peut voir que le système de démarrage 1 selon l'invention comporte principalement une rampe commune 2, des moyens d'alimentations 3, des moyens d'injection 4 et un dispositif stockeur de carburant sous pression 5.In the example shown in figure 1 it can be seen that the starting system 1 according to the invention mainly comprises a common rail 2, feed means 3, injection means 4 and a pressurized fuel storage device 5.

Le fonctionnement très connu d'une rampe commune pour moteur à combustion interne ne sera pas détaillé dans ce brevet.The well-known operation of a common rail for an internal combustion engine will not be detailed in this patent.

Dans l'exemple illustré à la figure 1, les moyens d'alimentations 3 sont constitués d'une pompe haute pression 6 d'un conduit 7 et d'un clapet anti-retour 8. Cette pompe va compresser et envoyer du carburant sous pression à la rampe commune 2 par le conduit 7. Le clapet anti-retour 8, monté dans ce même conduit, est utilisé pour éviter les refoulements de carburant dans la pompe 6 lorsque la pression du carburant est plus forte dans la rampe commune 2 qu'à la sortie de ladite pompe.In the example shown in figure 1 , the power supply means 3 consist of a high pressure pump 6 of a pipe 7 and a non-return valve 8. This pump will compress and send fuel under pressure to the common rail 2 through the conduit 7 The check valve 8, mounted in the same duct, is used to prevent fuel back-up in the pump 6 when the fuel pressure is higher in the common rail 2 than at the outlet of said pump.

Les moyens d'injections 4, dans l'exemple illustré à la figure 1, comportent principalement pour chaque cylindre dudit moteur une canalisation 9 et un injecteur 10. La canalisation 9 permet à l'injecteur 10 d'être relié à la rampe commune 2 et donc d'être alimenté en carburant sous pression. En effet, chaque injecteur ne peut fonctionner qu'avec un carburant sous une pression minimale prédéterminée. Ainsi pour un moteur à quatre cylindres, il faudra utiliser quatre ensembles canalisation 9 - injecteur 10.Injection means 4, in the example illustrated in FIG. figure 1 , Mainly comprise for each cylinder of said engine a pipe 9 and an injector 10. The pipe 9 allows the injector 10 to be connected to the common rail 2 and thus to be fed with fuel under pressure. Indeed, each injector can operate only with a fuel under a predetermined minimum pressure. Thus for a four-cylinder engine, it will be necessary to use four sets of pipe 9 - injector 10.

Le dispositif stockeur de carburant sous pression 5 est, dans le même exemple illustré, en communication directe avec la rampe commune grâce à un conduit 11. Dans l'exemple, illustré à la figure 2, on peut voir plus précisément que ledit dispositif stockeur comporte des moyens de stockage 12 et des moyens d'ouverture 13.The pressurized fuel storage device 5 is, in the same example illustrated, in direct communication with the common rail via a conduit 11. In the example, illustrated in FIG. figure 2 it can be seen more precisely that said storage device comprises storage means 12 and opening means 13.

Les moyens de stockage 12 comportent principalement une enceinte 14 et un capteur 15. Cette première peut contenir du carburant à une pression au moins également à celle fournit par la pompe haute pression 6. Le capteur 15 permet de déterminer la pression du carburant à l'intérieur de ladite enceinte.The storage means 12 mainly comprise an enclosure 14 and a sensor 15. This first can contain fuel at a pressure at least also that supplied by the high pressure pump 6. The sensor 15 makes it possible to determine the pressure of the fuel at the same time. inside said enclosure.

Les moyens d'ouverture 13 permettent la communication entre l'enceinte 14 et le conduit 11. Ces moyens d'ouverture comportent des premiers éléments avec des propriétés élastiques 16 et des deuxièmes avec des propriétés électromagnétiques 17, ces deux séries d'éléments étant mécaniquement liées.The opening means 13 allow the communication between the enclosure 14 and the conduit 11. These opening means comprise first elements with elastic properties 16 and second with electromagnetic properties 17, these two series of elements being mechanically linked.

Lesdits premiers éléments comportent un ressort 18, une bille 19, un siège de ressort creux 20 et un siège de bille creux 21. Le siège de ressort 20 est utilisé non seulement pour maintenir l'orientation dudit ressort mais également grâce à son creux pour faire communiquer du carburant entre les moyens d'ouverture 13 et les moyens de stockage 12.Said first elements comprise a spring 18, a ball 19, a hollow spring seat 20 and a hollow ball seat 21. The spring seat 20 is used not only to maintain the orientation of said spring but also thanks to its hollow to make communicating fuel between the opening means 13 and the storage means 12.

Le ressort 18 comporte à l'extrémité opposée audit siège de ressort la bille 19. Celle-ci, suivant les réponses du ressort aux contraintes appliquées, imprimera un mouvement de translation apte à ouvrir ou fermer le creux du siège de bille 21 et ainsi permettre la communication de carburant entre le siège de ressort 20 et le conduit 11.The spring 18 comprises at the end opposite to said spring seat the ball 19. This, according to the responses of the spring to the applied stresses, will print a translational movement able to open or close the hollow of the ball seat 21 and thus allow the fuel communication between the spring seat 20 and the duct 11.

Lesdits deuxièmes éléments comportent des électrodes de commandes 22, une bobine 23 et un actionneur 24. Les électrodes 22 fournissent du courant dans la bobine 23 de manière à induire un champ magnétique apte à déplacer ledit actionneur. De plus, la bobine 23 est montée contre le siège de bille 21 de manière à ce que son diamètre intérieur soit centré sur le même point que celui dudit creux du siège de bille 21. Ainsi, le carburant pour passer entre le creux du siège de bille 21 et le conduit 11 doit traverser le diamètre intérieur de la bobine 23.Said second elements comprise control electrodes 22, a coil 23 and an actuator 24. The electrodes 22 supply current in the coil 23 so as to induce a magnetic field capable of moving said actuator. In addition, the spool 23 is mounted against the ball seat 21 so that its inner diameter is centered on the same point as that of said hollow of the ball seat 21. Thus, the fuel to pass between the hollow of the seat of ball 21 and the duct 11 must pass through the inside diameter of the coil 23.

Comme illustré dans l'exemple à la figure 3, l'actionneur 24 comporte un plateau circulaire 25, une première tige 26 et une deuxième tige 27. Le plateau 25 possède des caractéristiques magnétiques telles que, lors du passage du courant dans la bobine 23, il va être attiré vers cette dernière. De plus, le plateau 25 possède trois rainures 28 équidistantes les unes des autres sur la face en vis-à-vis avec ladite bobine.As illustrated in the example at figure 3 , the actuator 24 comprises a circular plate 25, a first rod 26 and a second rod 27. The plate 25 has magnetic characteristics such that, during the passage of the current in the coil 23, it will be attracted to the latter. In addition, the plate 25 has three grooves 28 equidistant from each other on the face vis-à-vis with said coil.

La première tige 26 est montée solidaire dudit plateau de manière à ce que ladite tige se retrouve sensiblement le long de l'axe central de la surface intérieure de la bobine 23. En prolongement de la première tige 26 est fixée la deuxième tige 27. Cette dernière est fine plus fine que la première tige 26 mais également que ledit creux du siège de bille de sorte qu'elle puisse y passer au travers.The first rod 26 is integral with said plate so that said rod is found substantially along the central axis of the inner surface of the coil 23. As an extension of the first rod 26 is fixed the second rod 27. This last is thinner than the first rod 26 but also that said ball seat recess so that it can pass through.

De plus, selon l'invention, la deuxième tige 27 est en contact permanent avec la bille 19 ce qui permet de lier mécaniquement les éléments élastiques 16 et les éléments électromagnétiques 17. Ainsi lorsque la pression relative du carburant poussera la bille 19 vers son siège 21, l'actionneur 24 sera éloigné de la bobine 23 ou lorsque la bobine 23 recevra du courant, l'actionneur 24 délogera la bille 19 de son siège 21.In addition, according to the invention, the second rod 27 is in permanent contact with the ball 19 which makes it possible to mechanically link the elastic elements 16 and the electromagnetic elements 17. Thus, when the relative pressure of the fuel pushes the ball 19 towards its seat 21, the actuator 24 will be moved away from the coil 23 or when the coil 23 receives current, the actuator 24 will dislodge the ball 19 from its seat 21.

Lors du premier démarrage, le moyen de stockage 14, qui est rempli en carburant sous faible pression, n'est pas opérationnel. Le capteur 15 le détecte et n'autorise pas l'ouverture du dispositif stockeur lors du démarrage.During the first start, the storage means 14, which is filled with fuel under low pressure, is not operational. The sensor 15 detects it and does not allow the opening of the storage device during startup.

Le moteur est alors démarré et par le biais de l'élément de distribution, la pompe haute pression 6 est mise en route. L'inertie de la pompe 6 fait qu'elle ne fournit pas immédiatement la pression minimale nécessaire aux injecteurs 10. Après cette pression minimale dépassée, la pompe 6 va continuer à augmenter la pression dans la rampe commune 2, du carburant va alors être présent dans le conduit 11, autour du plateau 25 et dans le volume intérieur creux de la bobine 23, de plus, les premières injections sont effectuées. Le moteur est alors démarré.The engine is then started and through the distribution element, the high pressure pump 6 is started. The inertia of the pump 6 does not immediately provide the minimum pressure necessary for the injectors 10. After this minimum pressure exceeded, the pump 6 will continue to increase the pressure in the common rail 2, fuel will then be present in the duct 11, around the plate 25 and in the hollow interior volume of the coil 23, moreover, the first injections are made. The engine is then started.

Quand la pression aura atteint un seuil minimum dans la rampe commune 2, le ressort 18 taré selon cette pression seuil va autoriser le passage du carburant et ainsi autoriser le remplissage du moyen de stockage 14. Suivant la pression relative entre la rampe commune 2 et le moyen de stockage 14, le ressort 18 va se contracter ou se détendre afin que, respectivement, la pression du carburant contenu dans le moyen de stockage 14 augmente ou reste stable.When the pressure has reached a minimum threshold in the common rail 2, the spring 18 calibrated according to this threshold pressure will allow the passage of fuel and thus allow the filling of the storage means 14. According to the relative pressure between the common rail 2 and the storage medium 14, the spring 18 will contract or relax so that, respectively, the fuel pressure contained in the storage means 14 increases or remains stable.

Quand de façon aléatoire par rapport au système de démarrage, le conducteur décide d'arrêter le moteur, la pompe haute pression 6 est arrêtée. La pression dans la rampe commune 2 baisse, le ressort 18 va se détendre pour plaquer la bille 19 sur son siège 21 et ainsi emprisonner du carburant sous pression dans le moyen de stockage 14. Le moteur est alors arrêté et le dispositif stockeur 5, opérationnel.When randomly compared to the starting system, the driver decides to stop the engine, the high pressure pump 6 is stopped. The pressure in the common rail 2 drops, the spring 18 will relax to press the ball 19 on its seat 21 and thus trap pressurized fuel in the storage means 14. The engine is then stopped and the storage device 5, operational .

Lors du démarrage suivant, le capteur 15 détecte que la pression est suffisante et autorise alors la libération du carburant contenu dans le moyen de stockage 14 vers la rampe commune 2. Cela est réalisé par l'activation de la bobine 23. L'actionneur va alors être attiré contre la bobine 23 et ainsi pousser la bille 19 de son siège 21 grâce aux tiges 26 et 27. Le carburant contenu dans le moyen de stockage 14 est alors libéré et va passer successivement par le creux du siège de ressort 20, le creux du siège de bille (autour de la tige 27), le diamètre intérieur de la bobine 23 (autour de la tige 26), les rainures 28 du plateau 25 et le conduit 11.At the next start, the sensor 15 detects that the pressure is sufficient and then allows the release of the fuel contained in the storage means 14 to the common rail 2. This is achieved by the activation of the coil 23. The actuator is then be drawn against the coil 23 and thus push the ball 19 of its seat 21 through the rods 26 and 27. The fuel contained in the storage means 14 is then released and will pass successively through the hollow of the spring seat 20, the hollow of the ball seat (around the rod 27), the inside diameter of the coil 23 (around the rod 26), the grooves 28 of the plate 25 and the duct 11.

La pompe 6 ne fournissant pas encore une pression plus grande que celle induite par ladite libération, le clapet anti-retour 8 bouche la conduite 7 et ainsi permet de garder la pression, due à la libération, constante dans la rampe commune 2.Since the pump 6 does not yet provide a pressure greater than that induced by said release, the non-return valve 8 blocks the pipe 7 and thus makes it possible to keep the pressure, due to the release, constant in the common rail 2.

La pression dans la rampe commune 2 est alors suffisante pour que un calculateur (non représenté) du moteur autorise le fonctionnement des injecteurs 10. La pompe haute pression 6 étant mise en mouvement à partir des éléments de distribution du moteur, les premières injections vont avoir un effet accélérateur quant aux performances de la pompe 6 qui va donc plus rapidement monter en pression. Ainsi, quand la pompe 6 fournira une pression supérieure à celle régnant dans la rampe commune 2, le clapet anti-retour 8 de la conduite 7 va autoriser la communication entre ladite rampe commune et la pompe 6 pour que cette dernière prenne le relais dudit dispositif stockeur 5. A cet instant, la bobine 23 est alors préférentiellement désactivée.The pressure in the common rail 2 is then sufficient for a computer (not shown) of the engine to allow the operation of the injectors 10. The high pressure pump 6 being set in motion from the engine distribution elements, the first injections will have an accelerating effect on the performance of the pump 6 which will therefore more quickly increase in pressure. Thus, when the pump 6 will provide a pressure greater than that prevailing in the common rail 2, the non-return valve 8 of the pipe 7 will allow communication between said common rail and the pump 6 for the latter to take over from said storage device 5. At this time, the coil 23 is then preferentially deactivated.

Préférentiellement également, le moyen de stockage 14 est dimensionné pour que deux cycles d'injections puissent être effectués avant que la pompe haute pression fournisse une pression supérieure à celle de la rampe commune 2.Preferably also, the storage means 14 is sized so that two cycles of injections can be performed before the high pressure pump provides a pressure greater than that of the common rail 2.

Quand la pression aura atteint un seuil minimum dans la rampe commune 2, le ressort 18 taré selon cette pression seuil va autoriser le passage du carburant et ainsi autoriser le remplissage du moyen de stockage 14. Le cycle du dispositif stockeur 5 se répétant comme expliqué précédemment pour permettre audit moteur d'acquérir un démarrage suffisamment court pour l'adapter à la technique dite "arrêt et départ".When the pressure has reached a minimum threshold in the common rail 2, the spring 18 calibrated according to this threshold pressure will allow the passage of fuel and thus allow the filling of the storage means 14. The storage device 5 cycle repeating as previously explained to allow said engine to acquire a start sufficiently short to adapt to the technique called "stop and go".

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art. En particulier, le lieu d'implantation du dispositif stockeur peut être différent. Egalement, le mouvement du plateau 24 peut être rendu plus linéaire grâce à des butées accompagnant le glissement dudit actionneur le long du dispositif stockeur 5. De plus, le clapet anti-retour 8 peut être intégré à la pompe haute pression 6. Enfin, le système peut fonctionner sans capteur de pression 15 et libérer la pression contenue dans le moyen de stockage 14 grâce à un temporisateur ou un autre organe.Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art. In particular, the location of the storage device may be different. Also, the movement of the plate 24 can be made more linear by stops accompanying the sliding of said actuator along the storage device 5. In addition, the non-return valve 8 can be integrated with the high pressure pump 6. Finally, the The system can operate without a pressure sensor 15 and release the pressure contained in the storage means 14 by means of a timer or other device.

Claims (5)

  1. Starting system (1) for an internal combustion engine, comprising means (3) for feeding pressurized fuel, accumulator means (2) supplied with pressurized fuel by the said feed means, and at least one injection means (4) fed with fuel by the accumulator means (2), a pressurized fuel storage device (5) being fed thanks to the pressure prevailing in the said accumulator means and being suitable for supplying the said stored fuel upon starting, the storage device (5) communicating directly with the said accumulator means, comprising at least one storage means (12), a ball (19) for opening or closing the communication between the storage device (5) and the accumulator means (2), and the opening means (13) acting on the ball (19), and comprising electromagnetic means (17) and elastic means (16), characterized in that
    • the electromagnetic means (17) and elastic means (16) are mechanically joined by actuating means (24) shifting the ball (19) to open or close the communication, and selectively controlled by the said electromagnetic means and the said elastic means in order to limit the power to be supplied for controlling the starting system to enable the said engine to start more rapidly and;
    • the electromagnetic means (17) comprise:
    • a coil (23) generating a magnetic field for moving the actuating means (24) and whereof the inside diameter forms a tunnel s between the said at least one storage means (12) and the accumulator means (2) and;
    o a first rod (26) substantially located on the central axis of the said tunnel formed by the coil (23), a plate (25) fixed so as to be substantially perpendicular to one end of the said first rod - the said plate being attracted by the coil during the flow of a current in the coil, and a second rod (27) which, prolonging the other end of the first rod (26), is in contact with the ball (19) serving to follow or initiate the movement of the ball (19).
  2. System (1) according to Claim 1, characterized in that the elastic means (16) comprise a spring (18), a hollow plate (21) fixed between the said electromagnetic means (17) and the said storage means (12), and the ball (19) suitable for plugging the hollow of the said plate and joined to the said spring permitting the communication between the said two means, according to the relative pressures between the accumulator means (2) and the said at least one storage means.
  3. System (1) according to Claim 2, characterized in that the second rod (27) which is in contact with the said ball has a smaller diameter than the said hollow of the plate (21) suitable for following or initiating the movement of the said ball (19).
  4. System (1) according to one of the preceding claims, characterized in that the plate (25) further comprises at least one groove (28) suitable for allowing fuel to flow in its hollow when the said plate bears against the said electromagnetic means (17).
  5. System (1) according to one of the preceding claims, characterized in that the feed means (3) comprise a pump (6) feeding fuel to the said accumulator means and a non-return valve (8) allowing the fuel to flow exclusively in the direction from the pump to the said accumulator means (2).
EP03712217A 2002-01-10 2003-01-08 Internal combustion engine starting system Expired - Lifetime EP1463887B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0200250A FR2834535B1 (en) 2002-01-10 2002-01-10 STARTING SYSTEM FOR INTERNAL COMBUSTION ENGINE
FR0200250 2002-01-10
PCT/FR2003/000032 WO2003058053A1 (en) 2002-01-10 2003-01-08 Internal combustion engine starting system

Publications (2)

Publication Number Publication Date
EP1463887A1 EP1463887A1 (en) 2004-10-06
EP1463887B1 true EP1463887B1 (en) 2008-03-12

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EP03712217A Expired - Lifetime EP1463887B1 (en) 2002-01-10 2003-01-08 Internal combustion engine starting system

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US (1) US7007672B2 (en)
EP (1) EP1463887B1 (en)
JP (1) JP4304075B2 (en)
AT (1) ATE389107T1 (en)
DE (1) DE60319670T2 (en)
ES (1) ES2301785T3 (en)
FR (1) FR2834535B1 (en)
WO (1) WO2003058053A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222895A1 (en) * 2002-05-23 2003-12-11 Bosch Gmbh Robert High pressure accumulator for fuel injection systems with integrated pressure control valve
EP2072809A1 (en) * 2007-12-20 2009-06-24 GM Global Technology Operations, Inc. Combustion engine and start system therefore
DE102009061750B3 (en) 2009-08-20 2021-09-09 Ford Global Technologies, Llc Quick start of a common rail system
DE102012004935B4 (en) * 2012-03-10 2021-09-02 Volkswagen Aktiengesellschaft Common rail
DE102013019730A1 (en) * 2013-11-27 2015-05-28 Alfred Luhmann fuel metering
CN114673601B (en) * 2022-03-18 2023-03-28 东风商用车有限公司 Rapid pressure building method, device and equipment for starting diesel engine and readable storage medium

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936853A1 (en) * 1979-09-12 1981-04-02 Robert Bosch Gmbh, 7000 Stuttgart ELECTROMAGNETICALLY ACTUABLE VALVE
JPH03157576A (en) * 1989-11-15 1991-07-05 Aisin Aw Co Ltd Three-way solenoid valve and manufacture thereof
US5074263A (en) * 1990-02-02 1991-12-24 Emerson Charles E Stop/start control system for an internal combustion engine
US5529387A (en) * 1994-09-06 1996-06-25 Valcor Engineering Corporation Solenoid operated discharging orifice shutoff valve
US5533707A (en) * 1995-03-09 1996-07-09 Flexon, Inc. Check valve with internal longitudinally displaceable sleeve valve
JP3526119B2 (en) * 1995-12-28 2004-05-10 株式会社日本自動車部品総合研究所 Fuel pressure control system for in-cylinder direct injection engine
US5758865A (en) * 1996-08-21 1998-06-02 Kavlico Corporation Fuel injection valve and engine including the same
JPH10274130A (en) * 1997-03-28 1998-10-13 Zexel Corp Accumulator fuel injection device
US5839413A (en) 1997-04-28 1998-11-24 The Rexroth Corporation Quick start HEUI system
JP2000186649A (en) * 1998-12-24 2000-07-04 Isuzu Motors Ltd Variable discharge quantity control type high pressure fuel pump
JP3633388B2 (en) * 1999-08-04 2005-03-30 トヨタ自動車株式会社 High pressure fuel pump control device for internal combustion engine
JP3539302B2 (en) * 1999-09-09 2004-07-07 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
US6273395B1 (en) * 1999-10-12 2001-08-14 Ford Global Tech. Electronically actuated suction control valve assembly
US6234128B1 (en) * 2000-03-13 2001-05-22 General Motors Corporation Fuel accumulator with pressure on demand

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
JP4304075B2 (en) 2009-07-29
DE60319670T2 (en) 2009-04-02
ATE389107T1 (en) 2008-03-15
ES2301785T3 (en) 2008-07-01
US20050000494A1 (en) 2005-01-06
JP2005514556A (en) 2005-05-19
EP1463887A1 (en) 2004-10-06
US7007672B2 (en) 2006-03-07
FR2834535B1 (en) 2004-07-23
WO2003058053A1 (en) 2003-07-17
FR2834535A1 (en) 2003-07-11
DE60319670D1 (en) 2008-04-24

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