EP1489275A1 - System of additive supply for combustion engine - Google Patents

System of additive supply for combustion engine Download PDF

Info

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
Authority
EP
European Patent Office
Prior art keywords
engine
additive
oil
filter
contained
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.)
Withdrawn
Application number
EP04291429A
Other languages
German (de)
French (fr)
Inventor
Rémi Noirot
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1489275A1 publication Critical patent/EP1489275A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/02Lubrication 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/009Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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
    • F01N3/023Exhaust 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
    • F01N3/029Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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
    • F01N3/033Exhaust 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
    • F01N3/035Exhaust 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.

Abstract

The system has an additive tank associated with an oil filter (10). Additive in the tank is mixed with engine lubrication oil when oil is introduced in a diesel engine (2) of a motor vehicle. The additive is deposited on a particle filter (6) that is integrated in an exhaust line (4) of the engine, to lower combustion temperature of soot trapped in the line. An oxidation catalyst (5) is integrated in the exhaust line.

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.
According to other characteristics:
  • 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.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings, in which:
  • 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 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.

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 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.

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 general reference 11, associated with the fuel tank 1 via a pumping / metering system designated by the general reference 12.

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 fuel 1, a determined quantity of additive is injected into this tank of fuel 1 by the pumping / metering system 12, so that the additive either mixed with this fuel and transported through the engine, in the filter with particles to settle there.

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 fuel tank 1, engine 2, turbocharger 3, exhaust line 4, catalyst 5 and the particle filter 6.

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 oil filter 10 fixed on the engine 2 and connected to the lubrication circuit of the engine.

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 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.

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 engine 2 and the oil filter 10 fixed thereon and the filter element 14 of which is soaked with additive.

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 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.

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 drain plug 16, so as to be engaged in the oil pan 15 of the engine.

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)

Système d'apport d'un additif destiné à se déposer sur un filtre à particules (6) intégré dans une ligne d'échappement (4) d'un moteur Diesel (2) 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 dan le moteur.Additive supply system intended to be deposited on a particulate filter (6) integrated in an exhaust line (4) of a diesel engine (2) of a motor vehicle, to lower the combustion temperature of soot trapped in it, characterized in that the additive is mixed with the engine lubricating oil when the oil is introduced into the engine. Système selon la revendication 1, caractérisé en ce que l'additif est contenu dans un réservoir d'additif (13) associé au filtre à huile (10) pour être mélangé à celle-ci lors de l'introduction de l'huile dans le moteur (2).System according to claim 1, characterized in that the additive is contained in an additive reservoir (13) associated with the oil filter (10) to be mixed with the latter during the introduction of the oil into the motor (2). Système selon la revendication 1, caractérisé en ce que l'additif est contenu dans un réservoir associé au circuit d'huile de lubrification du moteur par des moyens de pompage/dosage.System according to claim 1, characterized in that the additive is contained in a reservoir associated with the engine lubricating oil circuit by pumping / metering means. Système selon la revendication 1, caractérisé en ce que l'additif est contenu dans l'élément filtrant (14) du filtre à huile (10) pour être mélangé à celle-ci lors de son introduction dans le moteur.System according to claim 1, characterized in that the additive is contained in the filter element (14) of the oil filter (10) to be mixed with the latter when it is introduced into the engine. Système selon les revendications 2 ou 4, caractérisé en ce que le filtre à huile (10) est porté par un bouchon de vidange d'huile (16) du moteur.System according to claims 2 or 4, characterized in that the oil filter (10) is carried by an oil drain plug (16) of the engine. Système selon la revendication 1, caractérisé en ce que l'additif est contenu dans un réservoir d'additif (17) porté par un bouchon de vidange d'huile (16) du moteur.System according to claim 1, characterized in that the additive is contained in an additive tank (17) carried by an oil drain plug (16) of the engine. Système selon l'une quelconque des revendications précédentes, caractérisé en ce que le moteur est associé à un turbocompresseur (3).System according to any one of the preceding claims, characterized in that the engine is associated with a turbocharger (3). Système selon l'une quelconque des revendications précédentes, caractérisé en ce que le filtre à particules (6) est associé à un catalyseur (5).System according to any one of the preceding claims, characterized in that the particle filter (6) is associated with a catalyst (5). Système selon l'une quelconque des revendications précédentes, caractérisé en ce que le moteur (2) est associé à des moyens de contrôle de son fonctionnement, permettant de déclencher une phase de régénération du filtre à particules (6) en déclenchant une phase d'injection de carburant dans les cylindres du moteur (2) pendant leur phase de détente.System according to any one of the preceding claims, characterized in that the engine (2) is associated with means for controlling its operation, making it possible to trigger a regeneration phase of the particle filter (6) by triggering a phase of injection of fuel into the engine cylinders (2) during their expansion phase.
EP04291429A 2003-06-18 2004-06-08 System of additive supply for combustion engine Withdrawn EP1489275A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307367A FR2856425B1 (en) 2003-06-18 2003-06-18 ADDITIVE DELIVERY SYSTEM FOR MOTOR VEHICLE ENGINE
FR0307367 2003-06-18

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04) *

Cited By (2)

* Cited by examiner, † Cited by third party
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
FR2856425B1 (en) 2007-01-05
FR2856425A1 (en) 2004-12-24

Similar Documents

Publication Publication Date Title
EP1310656B1 (en) System for assisting the regeneration of an exhaust gas purifying system comprised in the exhaust pipe of a vehicle engine
EP0841475A1 (en) Process and unit for the filtration of exhaust gases with adjustable heating
EP0661429B1 (en) Method and device for variable dosing an additive for regeneration of a particulate filter
EP1242723B1 (en) Diagnostic method for an exhaust system of a combustion engine
EP1731590A2 (en) Additive for a device for automatic supply of means forming an additive into a motor vehicle fuel tank.
FR2945575A1 (en) EXHAUST GAS TREATMENT AND EXHAUST SYSTEM OF A COMMAND IGNITION COMBUSTION ENGINE.
EP1489275A1 (en) System of additive supply for combustion engine
FR2925938A1 (en) Particle filter regenerating method for e.g. diesel engine of hybrid vehicle, involves insufflating hot air in exhaust duct to reproduce gaseous flow circulation, and introducing air in fuel flow to create or maintain exotherm at catalyst
EP2066881A1 (en) Control device for an engine assembly with a diesel engine that makes possible an improved particle filter regeneration strategy
FR2833652A1 (en) METHOD FOR SUPPLYING AN INTERNAL COMBUSTION ENGINE AND ASSOCIATED DEVICE
EP1687519A1 (en) Auxiliary system for regenerating pollution control means integrated into the exhaust line of a vehicle engine
EP2324214A1 (en) Strategy for monitoring the quality of a diesel engine lubricant
EP1982068B1 (en) Device for introducing additive forming means in a motor vehicle fuel distribution circuit
FR2849672A1 (en) Particle filter for diesel engine exhaust gases has filter medium coated or impregnated able to form oxygen reserve for soot combustion
FR2801635A1 (en) Method of monitoring exhaust filter function in motor vehicle internal combustion engine
FR2886648A1 (en) Fuel additive, for e.g. diesel vehicle, has mixture of additives containing additives for aiding regeneration of particle filter, detergent additive, and additives for improvement of fuel distribution, performance and stability of engine
FR2957978A1 (en) Method for regulating direct injection flow rate of e.g. oil in common ramp type engine of motor vehicle, involves increasing temperature in chamber until thermal conditions in chamber authorize combustion of injected fuel
FR2927657A3 (en) Fuel i.e. diesel oil, supply system for exhaust gas depollution device of e.g. diesel engine, of motor vehicle, has branch provided on supply line of engine, in upstream of high pressure pump and formed in downstream of electric pump
FR2774428A1 (en) System for regenerating a particle filter in a diesel engine exhaust pipe
FR2943719A1 (en) Vaporized fuel purging method for exhaust line of e.g. diesel engine of vehicle to regenerate particle filter, involves providing request to carry out process until quantity of fuel reaches reference quantity when conditions are satisfied
FR2812688A1 (en) System regenerating particle filter in exhaust pipe of diesel vehicle has controller lowering combustion temperature of particles and delivering multiple fuel injections in normally inactive period
FR2886649A1 (en) Additive for improving performance of e.g. diesel vehicle, has mixture of additives containing additive assisting regeneration of particles filter and engine`s operating performance and stability improving additive
EP1461515B1 (en) Method for regenerating particulate filters by ammonium nitrate injection and device therefor
FR2886647A1 (en) Additive for improving performance of diesel engine of vehicle, has mixture of additives containing additive assisting filters` regeneration, friction loss reducing additive, engine operating performance and stability improving additives
FR3091540A1 (en) FUEL ADDITIVATION METHOD FOR ADDITIVATION OF SOOTS CREATED IN AN ENGINE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050530

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20110209

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20120322