EP1489275A1 - System of additive supply for combustion engine - Google Patents
System of additive supply for combustion engine Download PDFInfo
- Publication number
- EP1489275A1 EP1489275A1 EP04291429A EP04291429A EP1489275A1 EP 1489275 A1 EP1489275 A1 EP 1489275A1 EP 04291429 A EP04291429 A EP 04291429A EP 04291429 A EP04291429 A EP 04291429A EP 1489275 A1 EP1489275 A1 EP 1489275A1
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- European Patent Office
- Prior art keywords
- engine
- additive
- oil
- filter
- contained
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/02—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00 having means for introducing additives to lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
Definitions
- the present invention relates to an additive supply system intended to be deposited on a particulate filter integrated in an exhaust line of a diesel engine of a motor vehicle.
- additives are in fact intended to be deposited within the soot bed retained on the particulate filter, to lower the combustion temperature of them.
- This additive in association with a particular engine operation, makes it possible to facilitate the regeneration of the particulate filter, in particular in duration.
- motors of this type are associated with means of control of their operation which triggers during a regeneration phase of the filter, injecting fuel into the engine cylinders during their expansion phase to increase the temperature of the exhaust gases.
- the additive is contained in a specific tank associated with the fuel tank via a system of pumping / dosing, which injects a determined quantity into the fuel tank additive depending on the amount of fuel added to the tank during a filling operation thereof for example.
- this structure has a number of drawbacks, especially in terms of the complexity of such a pumping / metering system, its size, cost and the fact that certain fuels are incompatible with this additive.
- the object of the invention is therefore to solve these problems.
- the subject of the invention is a system for supplying an additive. intended to be deposited on a particulate filter integrated in an exhaust line of a diesel engine of a motor vehicle, to lower the temperature of combustion of soot trapped therein, characterized in that the additive is mixed with the engine lubricating oil when the oil is introduced into the engine.
- FIG. 1 has indeed illustrated a block diagram illustrating the structure and operation of a system for adding an additive to the state of technical.
- a fuel tank designated by the general reference 1 a vehicle diesel engine designated by the general reference 2, possibly associated with a turbocharger designated by the reference general 3, placed in an exhaust line 4 of it, this line exhaust also comprising for example an oxidation catalyst 5 and a particle filter 6.
- a temperature sensor 7 can also be associated with this line, as well as a differential pressure measurement system at the terminals of the catalyst and the particulate filter, this system being designated by the reference general 8. These different means are linked to means of controlling the operation of the engine to trigger for example a regeneration phase of the filter.
- the lower part of the engine 2 forms an oil reservoir lubrication thereof, designated by the general reference 9 and an oil filter 10 is also associated with this engine.
- the additive intended to be deposited on the filter particles to lower the combustion temperature of soot trapped in this is contained in an additive tank designated by the general reference 11, associated with the fuel tank 1 via a pumping / metering system designated by the general reference 12.
- FIG. 2 Illustrated in Figure 2, in the form of a block diagram, a exemplary embodiment of a supply system according to the invention.
- the fuel tank is no longer associated with a specific additive tank through a pumping / metering system.
- the additive is mixed with the lubricating oil of the motor.
- the additive can be mixed with the oil before its introduction into the engine.
- a specific oil already containing the additive is then developed and introduced into the engine, during the first filling of this or during each oil change.
- a specific oil filler neck for this engine can then be used, this chute having a keying system to avoid that a conventional oil can be used.
- Another solution consists in associating with the lubrication oil circuit engine, an additive tank associated with a pumping / metering system allowing during the first oil filling or during each oil change, introduce in the lubricating oil, a determined quantity of additive.
- yet another solution may be to use an oil filter specific with an integrated additive tank.
- This oil filter 10 then comprises an additive reservoir presenting itself for example in the form of an additive capsule designated by the general reference 13 containing a predetermined quantity of additive intended to be mixed with oil during the first filling or each oil change.
- means for indicating the oil level of the engine may be used to deliver to the engine operating control means, information relating to the fact that an emptying has been carried out, in order to impose a change of the used oil filter and its replacement by a filter new containing additive.
- a strategy for operating the engine in degraded mode can also be implemented by the operating control means of the engine in order to oblige the maintenance of the vehicle and to impose the changing the oil filter.
- oil is consumed through the seal segmentation with respect to the walls of the engine cylinders, so that oil is burnt in the combustion chamber, through the bearing turbocharger lubrication, in which case oil is also burnt in hot exhaust gases or on the catalyst and through the guides intake valves, in which case oil is also burnt in the engine combustion chamber.
- the additive content of the lubricating oil is then fixed to keep account of average engine fuel consumption and consumption in lubricating oil thereof, to achieve the same rate of additive brought by the oil in the particulate filter, than the one brought by the system conventional contribution of the state of the art, via fuel.
- such an additive used can be cerine and an additive lubricating oil from an engine consuming an average of 0.1 liters of oil on 1000 kms and 7 liters of fuel per 100 kms added to a few ppm of additive by mass, is of the order of percent of cerine by mass or any other compound making it possible to maintain the same combustion kinetics soot trapped in the internal structure of the particulate filter.
- the filter element of the oil filter can also be soaked in additive to ensure mixing with the oil, as shown in figure 4.
- This filter element is in fact generally formed of a cardboard material porous whose properties allow it to adsorb the additive and restore it when introducing and circulating oil in the engine.
- this oil filter and additive assembly can also be designed to be placed in the engine oil pan and carried by the plug engine oil drain as shown in figure 5.
- the engine oil pan is designated by the reference 15 and the oil filter with the general reference 10, including the filter element 14 is soaked with additive.
- This filter is then carried by an oil drain plug 16 fixed to the rest of the engine by any suitable means allowing for example prohibit the reassembly of a used filter after disassembly.
- the additive is contained in a capsule 17 carried by the drain plug 16, so as to be engaged in the oil pan 15 of the engine.
- the fixing of the plug on this casing is carried out using means prohibiting the reassembly of a used capsule after disassembly. This ensures that the vehicle maintenance operator change the capsule well at each drain, the capsule is then adapted to release the additive to allow mixing with the oil.
- the capsule can be made of thermally dilutable material in the oil so that when the engine oil heats up during operation from it, the additive can be released.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
La présente invention concerne un système d'apport d'un additif destiné à se déposer sur un filtre à particules intégré dans une ligne d'échappement d'un moteur Diesel de véhicule automobile.The present invention relates to an additive supply system intended to be deposited on a particulate filter integrated in an exhaust line of a diesel engine of a motor vehicle.
Ces additifs sont en effet destinés à se déposer au sein du lit de suies retenues sur le filtre à particules, pour abaisser la température de combustion de celles-ci.These additives are in fact intended to be deposited within the soot bed retained on the particulate filter, to lower the combustion temperature of them.
Cet additif en association avec un fonctionnement particulier du moteur, permet en effet de faciliter la régénération du filtre à particules, notamment en durée.This additive in association with a particular engine operation, makes it possible to facilitate the regeneration of the particulate filter, in particular in duration.
En particulier, les moteurs de ce type sont associés à des moyens de contrôle de leur fonctionnement qui déclenchent lors d'une phase de régénération du filtre, une injection de carburant dans les cylindres du moteur pendant leur phase de détente afin d'augmenter la température des gaz d'échappement.In particular, motors of this type are associated with means of control of their operation which triggers during a regeneration phase of the filter, injecting fuel into the engine cylinders during their expansion phase to increase the temperature of the exhaust gases.
Dans l'état de la technique, l'additif est contenu dans un réservoir spécifique associé au réservoir de carburant par l'intermédiaire d'un système de pompage/dosage, qui injecte dans le réservoir de carburant, une quantité déterminée d'additif en fonction de la quantité de carburant ajoutée dans le réservoir lors d'une opération de remplissage de celui-ci par exemple.In the state of the art, the additive is contained in a specific tank associated with the fuel tank via a system of pumping / dosing, which injects a determined quantity into the fuel tank additive depending on the amount of fuel added to the tank during a filling operation thereof for example.
Cependant, cette structure présente un certain nombre d'inconvénients, notamment au niveau de la complexité d'un tel système de pompage/dosage, de son encombrement, de son coût et du fait que certains carburants sont incompatibles avec cet additif.However, this structure has a number of drawbacks, especially in terms of the complexity of such a pumping / metering system, its size, cost and the fact that certain fuels are incompatible with this additive.
Par ailleurs, certains véhicules sont également munis d'équipements nécessitant pour leur fonctionnement un carburant ne contenant pas d'additifs de cette nature.In addition, some vehicles are also fitted with equipment requiring for their operation a fuel that does not contain that nature.
Le but de l'invention est donc de résoudre ces problèmes.The object of the invention is therefore to solve these problems.
A cet effet, l'invention a pour objet un système d'apport d'un additif destiné à se déposer sur un filtre à particules intégré dans une ligne d'échappement d'un moteur Diesel de véhicule automobile, pour abaisser la température de combustion des suies piégées dans celui-ci, caractérisé en ce que l'additif est mélangé à l'huile de lubrification du moteur lors de l'introduction de l'huile dans le moteur. To this end, the subject of the invention is a system for supplying an additive. intended to be deposited on a particulate filter integrated in an exhaust line of a diesel engine of a motor vehicle, to lower the temperature of combustion of soot trapped therein, characterized in that the additive is mixed with the engine lubricating oil when the oil is introduced into the engine.
Suivant d'autres caractéristiques :
- l'additif est contenu dans un réservoir d'additif associé au filtre à huile pour être mélangé à celle-ci lors de l'introduction de l'huile dans le moteur ;
- l'additif est contenu dans un réservoir associé au circuit d'huile de lubrification du moteur par des moyens de pompage/dosage ;
- l'additif est contenu dans l'élément filtrant du filtre à huile pour être mélangé à celle-ci lors de son introduction dans le moteur ;
- le filtre à huile est porté par un bouchon de vidange d'huile du moteur;
- l'additif est contenu dans un réservoir d'additif porté par un bouchon de vidange d'huile du moteur ;
- le moteur est associé à un turbocompresseur ;
- le filtre à particules est associé à un catalyseur ; et
- le moteur est associé à des moyens de contrôle de son fonctionnement, permettant de déclencher une phase de régénération du filtre à particules en déclenchant une phase d'injection de carburant dans les cylindres du moteur pendant leur phase de détente.
- the additive is contained in an additive reservoir associated with the oil filter to be mixed with the latter when the oil is introduced into the engine;
- the additive is contained in a reservoir associated with the lubricating oil circuit of the engine by pumping / metering means;
- the additive is contained in the filter element of the oil filter to be mixed with it when it is introduced into the engine;
- the oil filter is carried by an engine oil drain plug;
- the additive is contained in an additive tank carried by an engine oil drain plug;
- the engine is associated with a turbocharger;
- the particulate filter is associated with a catalyst; and
- the engine is associated with means for controlling its operation, making it possible to trigger a regeneration phase of the particle filter by triggering a fuel injection phase in the engine cylinders during their expansion phase.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :
- la Fig.1 représente un schéma synoptique illustrant la structure et le fonctionnement d'un système d'apport d'un additif de l'état de la technique ;
- la Fig.2 représente un schéma synoptique illustrant la structure et le fonctionnement d'un système d'apport d'un additif selon l'invention ;
- la Fig.3 représente un schéma synoptique d'un filtre à huile utilisé dans un mode de réalisation d'un système selon l'invention ; et
- les Figs.4, 5 et 6 représentent des variantes de réalisation d'un filtre à huile et d'un bouchon de vidange entrant dans la constitution d'un système selon l'invention.
- Fig.1 shows a block diagram illustrating the structure and operation of a supply system of an additive of the prior art;
- Fig.2 shows a block diagram illustrating the structure and operation of an additive supply system according to the invention;
- Fig.3 shows a block diagram of an oil filter used in an embodiment of a system according to the invention; and
- Figs.4, 5 and 6 show alternative embodiments of an oil filter and a drain plug forming part of a system according to the invention.
On a en effet illustré sur la figure 1, un schéma synoptique illustrant la structure et le fonctionnement d'un système d'apport d'un additif de l'état de la technique.FIG. 1 has indeed illustrated a block diagram illustrating the structure and operation of a system for adding an additive to the state of technical.
On reconnaít sur cette figure, un réservoir de carburant désigné par la
référence générale 1, un moteur Diesel de véhicule désigné par la référence générale
2, associé éventuellement à un turbocompresseur désigné par la référence
générale 3, placé dans une ligne d'échappement 4 de celui-ci, cette ligne
d'échappement comportant également par exemple un catalyseur d'oxydation 5
et un filtre à particules 6.We recognize in this figure, a fuel tank designated by the
Un capteur de température 7 peut également être associé à cette ligne, de même qu'un système de mesure de la pression différentielle aux bornes du catalyseur et du filtre à particules, ce système étant désigné par la référence générale 8. Ces différents moyens sont reliés à des moyens de contrôle du fonctionnement du moteur pour déclencher par exemple une phase de régénération du filtre.A temperature sensor 7 can also be associated with this line, as well as a differential pressure measurement system at the terminals of the catalyst and the particulate filter, this system being designated by the reference general 8. These different means are linked to means of controlling the operation of the engine to trigger for example a regeneration phase of the filter.
De façon classique, la partie basse du moteur 2 forme réservoir d'huile
de lubrification de celui-ci, désigné par la référence générale 9 et un filtre à huile
10 est également associé à ce moteur.Conventionally, the lower part of the
Dans l'état de la technique, l'additif destiné à se déposer sur le filtre à
particules pour abaisser la température de combustion des suies piégées dans
celui-ci, est contenu dans un réservoir d'additif désigné par la référence générale
11, associé au réservoir de carburant 1 par l'intermédiaire d'un système de pompage/dosage
désigné par la référence générale 12.In the state of the art, the additive intended to be deposited on the filter
particles to lower the combustion temperature of soot trapped in
this is contained in an additive tank designated by the
On conçoit alors que lors de chaque apport de carburant dans le réservoir
de carburant 1, une quantité déterminée d'additif est injectée dans ce réservoir
de carburant 1 par le système de pompage/dosage 12, afin que de l'additif
soit mélangé à ce carburant et soit transporté à travers le moteur, dans le filtre
à particules pour s'y déposer.It can therefore be seen that each time fuel is added to the tank
of
Comme cela a été indiqué précédemment, ces structures présentent un certain nombre d'inconvénients.As previously indicated, these structures have a number of drawbacks.
On a illustré sur la figure 2, sous forme de schéma synoptique, un exemple de réalisation d'un système d'apport selon l'invention.Illustrated in Figure 2, in the form of a block diagram, a exemplary embodiment of a supply system according to the invention.
Sur cette figure 2, les mêmes numéros de référence que ceux utilisés sur la figure 1, désignent des pièces identiques ou analogues à celles illustrées sur cette figure 1.In this figure 2, the same reference numbers as those used in FIG. 1, designate parts identical or analogous to those illustrated in this figure 1.
C'est ainsi que l'on reconnaít sur cette figure 2, le réservoir de carburant
1, le moteur 2, le turbocompresseur 3, la ligne d'échappement 4, le catalyseur
5 et le filtre à particules 6. This is how we recognize in this figure 2, the
Dans le système selon l'invention, le réservoir de carburant n'est plus associé à un réservoir d'additif spécifique à travers un système de pompage/dosage.In the system according to the invention, the fuel tank is no longer associated with a specific additive tank through a pumping / metering system.
En fait, et selon l'invention, l'additif est mélangé à l'huile de lubrification du moteur.In fact, and according to the invention, the additive is mixed with the lubricating oil of the motor.
Plusieurs solutions peuvent alors être envisagées.Several solutions can then be envisaged.
C'est ainsi par exemple que l'additif peut être mélangé à l'huile avant son introduction dans le moteur. Une huile spécifique contenant déjà l'additif est alors mise au point et introduite dans le moteur, lors du premier remplissage de celui-ci ou lors de chaque vidange.For example, the additive can be mixed with the oil before its introduction into the engine. A specific oil already containing the additive is then developed and introduced into the engine, during the first filling of this or during each oil change.
Une goulotte de remplissage d'huile spécifique de ce moteur peut alors être utilisée, cette goulotte comportant un système de détrompage pour éviter qu'une huile classique puisse être utilisée.A specific oil filler neck for this engine can then be used, this chute having a keying system to avoid that a conventional oil can be used.
Une autre solution consiste à associer au circuit d'huile de lubrification du moteur, un réservoir d'additif associé à un système de pompage/dosage permettant lors du premier remplissage en huile ou lors de chaque vidange, d'introduire dans l'huile de lubrification, une quantité déterminée d'additif.Another solution consists in associating with the lubrication oil circuit engine, an additive tank associated with a pumping / metering system allowing during the first oil filling or during each oil change, introduce in the lubricating oil, a determined quantity of additive.
Enfin, une autre solution encore peut être d'utiliser un filtre à huile spécifique comportant un réservoir d'additif intégré.Finally, yet another solution may be to use an oil filter specific with an integrated additive tank.
Un tel exemple de réalisation est illustré sur la figure 3, où l'on reconnaít
le filtre à huile 10 fixé sur le moteur 2 et raccordé au circuit de lubrification du
moteur.Such an embodiment is illustrated in Figure 3, where we recognize
the
Ce filtre à huile 10 comporte alors un réservoir d'additif se présentant
par exemple sous la forme d'une capsule d'additif désignée par la référence générale
13 contenant une quantité prédéterminée d'additif destiné à être mélangé
à l'huile lors du premier remplissage ou de chaque vidange du moteur.This
Des moyens spécifiques de fixation d'un filtre à huile de ce type sur le moteur peuvent alors être utilisés pour n'autoriser le montage que d'un filtre de ce type.Specific means of fixing an oil filter of this type to the motor can then be used to authorize the fitting of only one filter of this type.
De même, des moyens d'indication de niveau d'huile du moteur peuvent être utilisés pour délivrer aux moyens de contrôle de fonctionnement du moteur, une information relative au fait qu'une vidange a été effectuée, afin d'imposer un changement du filtre à huile usagé et son remplacement par un filtre neuf contenant de l'additif. Likewise, means for indicating the oil level of the engine may be used to deliver to the engine operating control means, information relating to the fact that an emptying has been carried out, in order to impose a change of the used oil filter and its replacement by a filter new containing additive.
Si ce filtre à huile n'a pas été remplacé, des moyens d'alerte peuvent alors être pilotés pour informer de ce non-remplacement.If this oil filter has not been replaced, means of alert may then be piloted to inform of this non-replacement.
De même, une stratégie de fonctionnement du moteur en mode dégradé peut également être mise en oeuvre par les moyens de contrôle du fonctionnement du moteur afin d'obliger la maintenance du véhicule et imposer le changement du filtre à huile.Similarly, a strategy for operating the engine in degraded mode can also be implemented by the operating control means of the engine in order to oblige the maintenance of the vehicle and to impose the changing the oil filter.
Une fois le filtre à huile muni du réservoir d'additif en position sur le moteur, le système de circulation d'huile interne du moteur à travers la pompe à huile, permet d'homogénéiser l'additif ainsi apporté à l'huile de lubrification.Once the oil filter fitted with the additive tank is in position on the engine, the internal oil circulation system of the engine through the pump oil, makes it possible to homogenize the additive thus brought to the lubricating oil.
Ceci permet alors également d'introduire l'additif dans les gaz d'échappement du moteur afin qu'il se dépose sur le filtre à particules.This then also makes it possible to introduce the additive into the gases. engine exhaust so that it settles on the particulate filter.
En effet, dans un tel moteur, de l'huile est consommée à travers l'étanchéité de la segmentation par rapport aux parois des cylindres du moteur, de sorte que de l'huile est brûlée dans la chambre de combustion, à travers le palier de lubrification de turbocompresseur, auquel cas de l'huile est également brûlée dans les gaz d'échappement chauds ou sur le catalyseur et à travers les guides des soupapes d'admission, auquel cas, de l'huile est également brûlée dans la chambre de combustion du moteur.Indeed, in such an engine, oil is consumed through the seal segmentation with respect to the walls of the engine cylinders, so that oil is burnt in the combustion chamber, through the bearing turbocharger lubrication, in which case oil is also burnt in hot exhaust gases or on the catalyst and through the guides intake valves, in which case oil is also burnt in the engine combustion chamber.
La teneur en additif de l'huile de lubrification est alors fixée pour tenir compte de la consommation moyenne en carburant du moteur et de la consommation en huile de lubrification de celui-ci, pour atteindre le même taux d'additif apporté par l'huile dans le filtre à particules, que celui apporté par le système d'apport classique de l'état de la technique, par l'intermédiaire du carburant.The additive content of the lubricating oil is then fixed to keep account of average engine fuel consumption and consumption in lubricating oil thereof, to achieve the same rate of additive brought by the oil in the particulate filter, than the one brought by the system conventional contribution of the state of the art, via fuel.
A titre d'exemple, un tel additif utilisé peut être de la cérine et une additivation de l'huile de lubrification d'un moteur consommant en moyenne 0,1 litre d'huile sur 1000 kms et 7 litres de carburant par 100 kms additivé à quelques ppm d'additif en masse, est de l'ordre du pour-cent de cérine en masse ou de tout autre composé permettant de conserver la même cinétique de combustion de suies piégées dans la structure interne du filtre à particules.By way of example, such an additive used can be cerine and an additive lubricating oil from an engine consuming an average of 0.1 liters of oil on 1000 kms and 7 liters of fuel per 100 kms added to a few ppm of additive by mass, is of the order of percent of cerine by mass or any other compound making it possible to maintain the same combustion kinetics soot trapped in the internal structure of the particulate filter.
Bien entendu, d'autres types d'additifs et d'autres structures peuvent être utilisés.Of course, other types of additives and other structures can be used.
Ainsi par exemple, l'élément filtrant du filtre à huile peut également être imbibé d'additif pour assurer son mélange à l'huile, comme cela est illustré sur la figure 4. So for example, the filter element of the oil filter can also be soaked in additive to ensure mixing with the oil, as shown in figure 4.
On reconnaít en effet sur cette figure, le moteur 2 et le filtre à huile 10
fixé sur celui-ci et dont l'élément filtrant 14 est imbibé d'additif.We recognize in this figure, the
Cet élément filtrant est en effet généralement formé d'un matériau cartonné poreux dont les propriétés permettent d'adsorber l'additif et de le restituer lors de l'introduction et de la circulation de l'huile dans le moteur.This filter element is in fact generally formed of a cardboard material porous whose properties allow it to adsorb the additive and restore it when introducing and circulating oil in the engine.
De plus, cet ensemble filtre à huile et additif peut également être conçu pour être placé dans le carter d'huile moteur et être porté par le bouchon de vidange d'huile du moteur comme cela est illustré sur la figure 5.In addition, this oil filter and additive assembly can also be designed to be placed in the engine oil pan and carried by the plug engine oil drain as shown in figure 5.
Sur cette figure, le carter d'huile moteur est désigné par la référence
générale 15 et le filtre à huile par la référence générale 10, dont l'élément filtrant
14 est imbibé d'additif. Ce filtre est alors porté par un bouchon de vidange d'huile
16 fixé sur le reste du moteur par tous moyens appropriés permettant par exemple
d'interdire le remontage d'un filtre usagé après un démontage.In this figure, the engine oil pan is designated by the
Ceci permet alors de garantir que l'opérateur de maintenance du véhicule change bien le filtre contenant l'additif à chaque vidange et ce, de manière très simple, car l'ensemble filtre et bouchon de vidange étant relié, une seule opération est nécessaire au contraire des moteurs dans lesquels le filtre est distinct et séparé du bouchon de vidange.This then ensures that the vehicle maintenance operator change the filter containing the additive well each time you change it, so that very simple, since the filter and drain plug assembly is connected, only one operation is necessary unlike motors in which the filter is separate and separated from the drain plug.
Selon encore un autre mode de réalisation illustré sur la figure 6, l'additif
est contenu dans une capsule 17 portée par le bouchon de vidange 16, de
manière à être engagée dans le carter d'huile 15 du moteur.According to yet another embodiment illustrated in FIG. 6, the additive
is contained in a capsule 17 carried by the
Dans ce cas également, la fixation du bouchon sur ce carter est réalisée en utilisant des moyens interdisant le remontage d'une capsule usagée après un démontage. Ceci permet de garantir que l'opérateur de maintenance du véhicule change bien la capsule à chaque vidange, la capsule est alors adaptée pour libérer l'additif pour permettre son mélange avec l'huile.In this case also, the fixing of the plug on this casing is carried out using means prohibiting the reassembly of a used capsule after disassembly. This ensures that the vehicle maintenance operator change the capsule well at each drain, the capsule is then adapted to release the additive to allow mixing with the oil.
Par exemple, la capsule peut être réalisée en matériau thermodiluable dans l'huile de manière que lorsque l'huile du moteur s'échauffe lors du fonctionnement de celui-ci, l'additif puisse être libéré.For example, the capsule can be made of thermally dilutable material in the oil so that when the engine oil heats up during operation from it, the additive can be released.
Bien entendu, d'autres modes de réalisation encore peuvent être envisagés.Of course, still other embodiments can be envisaged.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0307367 | 2003-06-18 | ||
FR0307367A FR2856425B1 (en) | 2003-06-18 | 2003-06-18 | ADDITIVE DELIVERY SYSTEM FOR MOTOR VEHICLE ENGINE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1489275A1 true EP1489275A1 (en) | 2004-12-22 |
Family
ID=33396801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04291429A Withdrawn EP1489275A1 (en) | 2003-06-18 | 2004-06-08 | System of additive supply for combustion engine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1489275A1 (en) |
FR (1) | FR2856425B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2911639A1 (en) * | 2007-01-23 | 2008-07-25 | Inergy Automotive Systems Res | Liquid additive injecting method for vehicle, involves determining temperature of additive liquid, and controlling actuator according to measured temperature to displace piston in rest position to inject additive volume in fuel reservoir |
WO2008090137A1 (en) * | 2007-01-23 | 2008-07-31 | Inergy Automotive Systems Research (Société Anonyme) | Process for injecting a liquid additive into a fuel tank |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US2898902A (en) * | 1954-08-17 | 1959-08-11 | Ralph A Vogel | Apparatus for supplying additives to lubricating system |
US5327861A (en) * | 1993-07-26 | 1994-07-12 | Navistar International Transportation Corp. | Automatic oil additive injector |
JP2002058964A (en) * | 2000-08-22 | 2002-02-26 | Idemitsu Kosan Co Ltd | Diesel particulate removing device |
JP2002060776A (en) * | 2000-08-22 | 2002-02-26 | Idemitsu Kosan Co Ltd | Lubricant oil composition for diesel engine with device for removing diesel fine particle |
US20020185453A1 (en) * | 2001-05-17 | 2002-12-12 | Beard John H. | Acid-neutralizing filter |
EP1362905A1 (en) * | 2000-08-22 | 2003-11-19 | Idemitsu Kosan Co., Ltd. | Additive for diesel particulate filter |
-
2003
- 2003-06-18 FR FR0307367A patent/FR2856425B1/en not_active Expired - Fee Related
-
2004
- 2004-06-08 EP EP04291429A patent/EP1489275A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US2898902A (en) * | 1954-08-17 | 1959-08-11 | Ralph A Vogel | Apparatus for supplying additives to lubricating system |
US5327861A (en) * | 1993-07-26 | 1994-07-12 | Navistar International Transportation Corp. | Automatic oil additive injector |
JP2002058964A (en) * | 2000-08-22 | 2002-02-26 | Idemitsu Kosan Co Ltd | Diesel particulate removing device |
JP2002060776A (en) * | 2000-08-22 | 2002-02-26 | Idemitsu Kosan Co Ltd | Lubricant oil composition for diesel engine with device for removing diesel fine particle |
EP1362905A1 (en) * | 2000-08-22 | 2003-11-19 | Idemitsu Kosan Co., Ltd. | Additive for diesel particulate filter |
US20020185453A1 (en) * | 2001-05-17 | 2002-12-12 | Beard John H. | Acid-neutralizing filter |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2911639A1 (en) * | 2007-01-23 | 2008-07-25 | Inergy Automotive Systems Res | Liquid additive injecting method for vehicle, involves determining temperature of additive liquid, and controlling actuator according to measured temperature to displace piston in rest position to inject additive volume in fuel reservoir |
WO2008090137A1 (en) * | 2007-01-23 | 2008-07-31 | Inergy Automotive Systems Research (Société Anonyme) | Process for injecting a liquid additive into a fuel tank |
Also Published As
Publication number | Publication date |
---|---|
FR2856425A1 (en) | 2004-12-24 |
FR2856425B1 (en) | 2007-01-05 |
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