EP3811387B1 - Electromagnetic device comprising a vapour outlet conduit arranged in an intermediate casing - Google Patents

Electromagnetic device comprising a vapour outlet conduit arranged in an intermediate casing Download PDF

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Publication number
EP3811387B1
EP3811387B1 EP19735503.5A EP19735503A EP3811387B1 EP 3811387 B1 EP3811387 B1 EP 3811387B1 EP 19735503 A EP19735503 A EP 19735503A EP 3811387 B1 EP3811387 B1 EP 3811387B1
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EP
European Patent Office
Prior art keywords
electromagnetic device
electromagnetic
fuel vapor
vapor outlet
casing
Prior art date
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EP19735503.5A
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German (de)
French (fr)
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EP3811387A1 (en
Inventor
Renaud CHAM
Luis Amaya
Rajendran VELLAYAGOUNDER
Vincent ANDRIEU
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Valeo Systemes de Controle Moteur SAS
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Valeo Systemes de Controle Moteur SAS
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Classifications

    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/089—Layout of the fuel vapour installation
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/48—Filters structurally associated with fuel valves
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M2025/0845—Electromagnetic valves

Definitions

  • the present invention relates to electromagnetic devices comprising a coil and an element movable under the effect of the magnetic field of the coil, and more particularly an electromagnetic device integrating connection means.
  • electromagnetic devices comprising a coil and an element movable under the effect of the magnetic field of the coil, and more particularly an electromagnetic device integrating connection means.
  • Such devices are known from the documents: US2006243939A1 , US 2012/318243 A1 , DE 10 2004 006874 A1 And US 2008/000456 A1 .
  • Thermal engine vehicles are conventionally equipped with an activated carbon filter called a canister which absorbs and retains fuel vapors coming from the tank.
  • the canister is connected to the engine intake via a purge solenoid valve which is closed when the engine is stopped and which opens to allow the canister to be purged when the engine is running. The excess vapors in the tank are thus evacuated towards the engine where they are burned. Activation of the canister purge valve depends on the manufacturer's purge cycles.
  • the intermediate housing is arranged in the extension of the first housing.
  • the fuel vapor outlet conduit extends inside the intermediate housing and opens outside the conduit through a side different from that where it enters the intermediate housing.
  • the fuel vapor outlet conduit is divided into two conduits.
  • the device comprises at least one additional element connected to one end of the conduit.
  • the device comprises two safety valves.
  • the device comprises a filter placed on the path of the fuel vapors upstream of the electromagnetic system.
  • the two conduits form an angle of 90° with each other or an angle less than 90°.
  • the invention also relates to the use of the device according to the invention in a motor vehicle.
  • the present invention relates to an electromechanical device 10, and more particularly a canister purge solenoid valve 10 comprising at least one fuel vapor outlet conduit, with a connector, integrated into a solenoid valve housing.
  • the objective of this integration is to allow connection with at least one other element such as a valve, or a sensor, or another element, without additional connection, and thus without additional emissions.
  • the device 10 according to the invention, illustrated figure 1 , comprises a fuel vapor inlet conduit 20 connected to a fuel vapor circulation conduit arriving from a fuel tank, and a fuel vapor outlet conduit 30.
  • the device 10 comprises at least one connector 50 for its electrical connection.
  • the materials of the device 10 are chosen to resist hydrocarbon vapors, in particular gasoline.
  • a first housing 61 of the device 10 internally houses an electromagnetic system 60.
  • the latter comprises a fixed core 62, tubular with axis X, made of a soft ferromagnetic material such as for example iron or ferromagnetic steel.
  • the electromagnetic system 60 comprises a coil 63 which extends around the fixed core 62 to generate a magnetic field within it when it is electrically powered.
  • the coil 63 is for example made of insulated copper wire, in particular enameled.
  • the system also comprises an element movable along the axis X axis inside the fixed core 62.
  • the plunger core 70 is inside the fixed core, in the example considered, and the flow, which is preferably gaseous (fuel vapors in this case), takes place in contact with it when it is open.
  • the plunger core 70 is made of a soft magnetic material, which loses its magnetization when the magnetic field of the coil ceases, as does the fixed core 62.
  • the plunger core 70 bears against a valve seat provided with an orifice 23 through which fuel vapors circulate when the device is open.
  • a return spring 80 ensures the return of the plunger core 70 to its rest position, closing the outlet conduit, in the absence of electrical power to the solenoid valve.
  • the inlet conduit 20 comprises an inlet opening 21 through which the fuel vapors arrive and an outlet opening 21 through which the fuel vapors are evacuated, upstream of the orifice 23 of the valve seat.
  • the electromagnetic system 60 is extended by the fuel vapor outlet conduit 30.
  • This conduit has a nozzle at its base. This nozzle serves to optimize the flow and flow of fuel vapors evacuated. It is therefore the nozzle which extends in the form of the fuel vapor outlet conduit 30.
  • the fuel vapor outlet conduit 30 is arranged in an intermediate housing 71.
  • This intermediate housing 71 is arranged in the extension of the first housing 61.
  • the intermediate housing 71 is fixed to the first housing 61.
  • the fixing is carried out by bonding welding or any means compatible with the use of the device.
  • the fuel vapor outlet conduit 30 extends inside the intermediate housing 71 and opens outside the conduit through a face 710 different from that 711 where it enters the intermediate housing 71. According to one embodiment of the invention, it opens outside the conduit via a face 710 opposite that 711 where it enters the intermediate housing 71. According to another embodiment of the invention, it opens outside the conduit via a face adjacent to that 711 where it enters the intermediate housing 71.
  • the term penetrate here describes the end of the conduit 30 which is in contact with the electromagnetic system 60 of the conduit 30, and which is therefore located in the intermediate housing 71.
  • the fuel vapor outlet conduit 30 comprises a branch 40. More precisely, the fuel vapor outlet conduit 30 is divided into two conduits 40, 300. The second conduit 40 opens onto a faces adjacent to one of the two inlet 711 and outlet 710 faces for the fuel vapor outlet.
  • the intermediate housing 71 has a single opening.
  • openings 720, 420 thus each allow the connection of an additional element 90.
  • the intermediate box 71 thus allows the support of the conduits 30, 40 and the associated connections 90.
  • this additional element 90 is a safety valve illustrated figures 1 to 3 .
  • the device 10 comprises two illustrated safety valves figures 1 and 2a, 2b .
  • this additional element 90 is a visible connector, figures 2a and 2b , for any other element compatible with the device.
  • the two conduits 40 and 300 are arranged perpendicular to each other. More precisely, they form an angle ⁇ of 90° or different from 90° with each other.
  • the two conduits are arranged so as to form an angle ⁇ ' less than 90°. Such a configuration allows for better throughput.
  • the angle ⁇ , ⁇ ' being the angle formed by the two conduits 300, 40 coming from the fuel vapor outlet conduit 30.
  • additional element 90 when additional element 90 is a safety valve, it comprises a visible diaphragm 91 figure 2 a and 2b.
  • THE diaphragm is configured so as to be held in place in the body 94 of the valve during assembly of the safety valve 90.
  • the diaphragm 91 comprises a recess 92 cooperating with a lug 95 formed in the body of the valve. The diaphragm is thus blocked during assembly.
  • the end 93 of the diaphragm has a diameter greater than the diameter of the piston 91. The diaphragm can thus no longer move, within the movement necessary for its operation, when it is housed in the body 94 of the safety valve 90.
  • the fuel vapors circulating in the device 10 are loaded with particles.
  • the device 10 comprises a circular filter 100.
  • the filter 100 is disposed on the path of the fuel vapors upstream of the plunger core 70. More precisely, the filter 100 is disposed at the opening 21 of the inlet conduit 20 and before the plunger core and the orifice 23 of the valve seat.
  • Such a circular filter makes it possible to block particles directly at the outlet of the fuel vapor inlet conduit 20 and allows particle-free circulation of fuel vapors all around the electromagnetic system 60.
  • the filter is an anti-particle filter making it possible to filter particles whose size is greater than or equal to 50 ⁇ m.

Description

La présente invention concerne les dispositifs électromagnétiques comportant une bobine et un élément mobile sous l'effet du champ magnétique de la bobine, et plus particulièrement un dispositif électromagnétique intégrant des moyens de connexions. De tels dispositifs sont connus des documents : US2006243939A1 , US 2012/318243 A1 , DE 10 2004 006874 A1 et US 2008/000456 A1 .The present invention relates to electromagnetic devices comprising a coil and an element movable under the effect of the magnetic field of the coil, and more particularly an electromagnetic device integrating connection means. Such devices are known from the documents: US2006243939A1 , US 2012/318243 A1 , DE 10 2004 006874 A1 And US 2008/000456 A1 .

Les véhicules à moteur thermique sont classiquement munis d'un filtre à charbon actif appelé canister qui absorbe et retient les vapeurs de carburant provenant du réservoir. Le canister est relié à l'admission du moteur via une électrovanne de purge qui est fermée lorsque le moteur est à l'arrêt et qui s'ouvre de façon à permettre la purge du canister lorsque le moteur est en fonctionnement. Les vapeurs en surplus dans le réservoir sont ainsi évacuées vers le moteur ou elles sont brulées. L'activation de la vanne de purge canister est fonction des cycles de purge du constructeur.Thermal engine vehicles are conventionally equipped with an activated carbon filter called a canister which absorbs and retains fuel vapors coming from the tank. The canister is connected to the engine intake via a purge solenoid valve which is closed when the engine is stopped and which opens to allow the canister to be purged when the engine is running. The excess vapors in the tank are thus evacuated towards the engine where they are burned. Activation of the canister purge valve depends on the manufacturer's purge cycles.

Aujourd'hui les normes sur les niveaux d'émissions de vapeurs de carburant sont de plus en plus sévères. Il est donc nécessaire d'adapter les dispositifs actuels à ces normes. Un des problèmes à ces adaptions vient du fait qu'il est nécessaire d'ajouter des capteurs, des vannes pour réguler et limiter les émissions. Cependant l'ajout de tous ces composants sur le circuit de transports des vapeurs amplifie le problème d'émission par l'augmentation de fuites au niveau des connections souvent de type pneumatiques.Today, standards for fuel vapor emission levels are increasingly strict. It is therefore necessary to adapt current systems to these standards. One of the problems with these adaptations comes from the fact that it is necessary to add sensors and valves to regulate and limit emissions. However, the addition of all these components to the vapor transport circuit amplifies the emission problem by increasing leaks at the connections, often pneumatic type.

Il est ainsi nécessaire de prévoir un dispositif permettant de limiter les émissions.It is therefore necessary to provide a device to limit emissions.

Pour cela la présente invention propose un dispositif électromagnétique comportant:

  • un système électromagnétique,
  • un conduit de sortie des vapeurs de carburant prolongeant le système électromagnétique,
  • un premier boîtier dans lequel est disposé le système électromagnétique,
le conduit de sortie des vapeurs de carburant étant disposé dans un boîtier intermédiaire.For this, the present invention proposes an electromagnetic device comprising:
  • an electromagnetic system,
  • a fuel vapor outlet conduit extending the electromagnetic system,
  • a first housing in which the electromagnetic system is arranged,
the fuel vapor outlet conduit being arranged in an intermediate housing.

Selon un mode de réalisation de l'invention, le boîtier intermédiaire est disposé dans le prolongement du premier boîtier.According to one embodiment of the invention, the intermediate housing is arranged in the extension of the first housing.

Selon un mode de réalisation de l'invention, le conduit de sortie des vapeurs de carburant se prolonge à l'intérieur du boîtier intermédiaire et débouche à l'extérieur du conduit par une face différente à celle où il pénètre dans le boîtier intermédiaire.According to one embodiment of the invention, the fuel vapor outlet conduit extends inside the intermediate housing and opens outside the conduit through a side different from that where it enters the intermediate housing.

Selon un mode de réalisation de l'invention, le conduit de sortie des vapeurs de carburant se divise en deux conduits.According to one embodiment of the invention, the fuel vapor outlet conduit is divided into two conduits.

Selon un mode de réalisation de l'invention, le dispositif comporte au moins un élément supplémentaire raccordé à une extrémité de conduit.According to one embodiment of the invention, the device comprises at least one additional element connected to one end of the conduit.

Selon un mode de réalisation de l'invention, le dispositif comporte deux vannes de sécurité.According to one embodiment of the invention, the device comprises two safety valves.

Selon l'invention, le dispositif comporte un filtre disposé sur le chemin des vapeurs de carburant en amont du système électromagnétique.According to the invention, the device comprises a filter placed on the path of the fuel vapors upstream of the electromagnetic system.

Selon un mode de réalisation de l'invention, les deux conduits forment un angle de 90° l'un avec l'autre ou un angle inférieur à 90°.According to one embodiment of the invention, the two conduits form an angle of 90° with each other or an angle less than 90°.

L'invention concerne également l'utilisation du dispositif selon l'invention dans un véhicule automobile.The invention also relates to the use of the device according to the invention in a motor vehicle.

D'autres buts, caractéristiques et avantages de l'invention seront mieux compris et apparaîtront plus clairement à la lecture de la description faite, ci-après, en se référant aux figures annexées, données à titre d'exemple et dans lesquelles:

  • La figure 1 est une représentation schématique d'une coupe longitudinale d'un dispositif selon l'invention,
  • la figure 2 est une représentation schématique d'une coupe longitudinale de deux modes de réalisation d'un dispositif selon l'invention 2a) diaphragme coopérant avec ergot, 2b) diaphragme avec tête élargie,
  • La figure 3 est une représentation schématique d'une coupe longitudinale de deux modes de réalisation d'un dispositif selon l'invention 3a) conduits à angle 90°, 3b) conduits à angle <90°,
  • La figure 4 est une vue du filtre du dispositif selon l'invention.
Other aims, characteristics and advantages of the invention will be better understood and will appear more clearly on reading the description given below, with reference to the appended figures, given by way of example and in which:
  • There figure 1 is a schematic representation of a longitudinal section of a device according to the invention,
  • there figure 2 is a schematic representation of a longitudinal section of two embodiments of a device according to the invention 2a) diaphragm cooperating with lug, 2b) diaphragm with enlarged head,
  • There Figure 3 is a schematic representation of a longitudinal section of two embodiments of a device according to the invention 3a) conduits at an angle of 90°, 3b) conduits at an angle <90°,
  • There Figure 4 is a view of the filter of the device according to the invention.

La présente invention concerne un dispositif 10 électromécanique, et plus particulièrement une électrovanne 10 de purge de canister comportant au moins un conduit de sortie des vapeurs de carburant, avec un connecteur, intégré dans un boitier de l'électrovanne.The present invention relates to an electromechanical device 10, and more particularly a canister purge solenoid valve 10 comprising at least one fuel vapor outlet conduit, with a connector, integrated into a solenoid valve housing.

L'objectif de cette intégration est de permettre la connexion avec au moins un autre élément tel qu'une vanne, ou un capteur, ou un autre élément, sans raccord supplémentaire, et ainsi sans émission supplémentaire.The objective of this integration is to allow connection with at least one other element such as a valve, or a sensor, or another element, without additional connection, and thus without additional emissions.

Le dispositif 10 selon l'invention, illustré figure 1, comporte un conduit 20 d'entrée des vapeurs de carburant connecté a un conduit de circulation des vapeurs de carburant arrivant d'un réservoir de carburant, et un conduit 30 de sortie des vapeurs de carburant.The device 10 according to the invention, illustrated figure 1 , comprises a fuel vapor inlet conduit 20 connected to a fuel vapor circulation conduit arriving from a fuel tank, and a fuel vapor outlet conduit 30.

Le dispositif 10 comporte au moins un connecteur 50 pour son raccordement électrique.The device 10 comprises at least one connector 50 for its electrical connection.

Les matériaux du dispositif 10 sont choisis pour résister aux vapeurs d'hydrocarbures, notamment d'essence.The materials of the device 10 are chosen to resist hydrocarbon vapors, in particular gasoline.

Un premier boitier 61 du dispositif 10 loge intérieurement un système 60 électromagnétique. Ce dernier comporte, un noyau fixe 62, tubulaire d'axe X, en un matériau ferromagnétique doux tel que par exemple du fer ou un acier ferromagnétique.A first housing 61 of the device 10 internally houses an electromagnetic system 60. The latter comprises a fixed core 62, tubular with axis X, made of a soft ferromagnetic material such as for example iron or ferromagnetic steel.

Le système 60 électromagnétique comporte une bobine 63 qui s'étend autour du noyau fixe 62 pour générer en son sein un champ magnétique lorsqu'il est alimenté électriquement. La bobine 63 est par exemple en fil de cuivre isolé, notamment émaillé.The electromagnetic system 60 comprises a coil 63 which extends around the fixed core 62 to generate a magnetic field within it when it is electrically powered. The coil 63 is for example made of insulated copper wire, in particular enameled.

Le système comporte également un élément déplaçable selon l'axe X sous l'effet du champ magnétique généré par la bobine 63, cet élément mobile étant sous la forme d'un noyau plongeur 70, réalisé en un matériau ferromagnétique, mobile axialement selon l'axe X à l'intérieur du noyau fixe 62.The system also comprises an element movable along the axis X axis inside the fixed core 62.

Le noyau plongeur 70 est intérieur au noyau fixe, dans l'exemple considéré, et l'écoulement, qui est de préférence gazeux (vapeurs de carburant en l'espèce), a lieu à son contact quand il est ouvert.The plunger core 70 is inside the fixed core, in the example considered, and the flow, which is preferably gaseous (fuel vapors in this case), takes place in contact with it when it is open.

Selon un mode de réalisation de l'invention,, le noyau plongeur 70 est en un matériau magnétique doux, qui perd son aimantation lorsque le champ magnétique de la bobine cesse, de même que le noyau fixe 62.According to one embodiment of the invention, the plunger core 70 is made of a soft magnetic material, which loses its magnetization when the magnetic field of the coil ceases, as does the fixed core 62.

Le noyau plongeur 70 vient en appui contre un siège de clapet muni d'un orifice 23 à travers lequel circulent les vapeurs de carburants lorsque le dispositif est ouvert.The plunger core 70 bears against a valve seat provided with an orifice 23 through which fuel vapors circulate when the device is open.

Un ressort de rappel 80 assure le retour du noyau plongeur 70 dans sa position de repos, de fermeture du conduit de sortie, en l'absence d'alimentation électrique de l'électrovanne.A return spring 80 ensures the return of the plunger core 70 to its rest position, closing the outlet conduit, in the absence of electrical power to the solenoid valve.

Le conduit 20 d'entrée comporte une ouverture d'entrée 21 par laquelle arrivent les vapeurs de carburants et une ouverture 21 de sortie par laquelle sont évacuées les vapeurs de carburant, en amont de l'orifice 23 du siège de clapet.The inlet conduit 20 comprises an inlet opening 21 through which the fuel vapors arrive and an outlet opening 21 through which the fuel vapors are evacuated, upstream of the orifice 23 of the valve seat.

Le système 60 électromagnétique se prolonge par le conduit 30 de sortie des vapeurs de carburant. Ce conduit comporte à sa base une tuyère. Cette tuyère sert à optimiser le flux et le débit des vapeurs de carburant évacuées. C'est donc la tuyère qui se prolonge sous la forme du conduit 30 de sortie des vapeurs de carburant.The electromagnetic system 60 is extended by the fuel vapor outlet conduit 30. This conduit has a nozzle at its base. This nozzle serves to optimize the flow and flow of fuel vapors evacuated. It is therefore the nozzle which extends in the form of the fuel vapor outlet conduit 30.

Dans le cadre de l'invention, le conduit 30 de sortie des vapeurs de carburant est disposé dans un boîtier 71 intermédiaire.In the context of the invention, the fuel vapor outlet conduit 30 is arranged in an intermediate housing 71.

Ce boîtier 71 intermédiaires est disposé dans le prolongement du premier boîtier 61.This intermediate housing 71 is arranged in the extension of the first housing 61.

Selon un mode de réalisation de l'invention, le boîtier 71 intermédiaire est fixé au premier boîtier 61. La fixation est réalisée par soudure collage ou tous moyens compatibles avec l'utilisation du dispositif.According to one embodiment of the invention, the intermediate housing 71 is fixed to the first housing 61. The fixing is carried out by bonding welding or any means compatible with the use of the device.

Selon un mode de réalisation de l'invention, le conduit 30 de sortie des vapeurs de carburant se prolonge à l'intérieur du boîtier 71 intermédiaire et débouche à l'extérieur du conduit par une face 710 différence à celle 711 où il pénètre dans le boîtier 71 intermédiaire. Selon un mode de réalisation de l'invention, débouche à l'extérieur du conduit par une face 710 opposée à celle 711 où il pénètre dans le boîtier 71 intermédiaire. Selon un autre mode de réalisation de l'invention, débouche à l'extérieur du conduit par une face adjacente à celle 711 où il pénètre dans le boîtier 71 intermédiaire. Le terme pénétrer décrit ici l'extrémité du conduit 30 qui est en contact avec le système 60 électromagnétique du conduit 30, et qui est donc située dans le boîtier 71 intermédiaire.According to one embodiment of the invention, the fuel vapor outlet conduit 30 extends inside the intermediate housing 71 and opens outside the conduit through a face 710 different from that 711 where it enters the intermediate housing 71. According to one embodiment of the invention, it opens outside the conduit via a face 710 opposite that 711 where it enters the intermediate housing 71. According to another embodiment of the invention, it opens outside the conduit via a face adjacent to that 711 where it enters the intermediate housing 71. The term penetrate here describes the end of the conduit 30 which is in contact with the electromagnetic system 60 of the conduit 30, and which is therefore located in the intermediate housing 71.

Selon une variante de l'invention, le conduit 30 de sortie des vapeurs de carburant comporte une ramification 40. Plus précisément, le conduit 30 de sortie des vapeurs de carburant se divise en deux conduits 40, 300. Le deuxième conduit 40 débouche sur une des faces adjacentes à une des deux faces d'entrée 711 et de sortie 710 de sortie des vapeurs de carburant.According to a variant of the invention, the fuel vapor outlet conduit 30 comprises a branch 40. More precisely, the fuel vapor outlet conduit 30 is divided into two conduits 40, 300. The second conduit 40 opens onto a faces adjacent to one of the two inlet 711 and outlet 710 faces for the fuel vapor outlet.

Les faces 710, par laquelle débouche le conduit 30 de sortie des vapeurs de carburant comporte ainsi chacune une ouverture 720, 420.The faces 710, through which the fuel vapor outlet conduit 30 opens, each has an opening 720, 420.

Selon un autre mode de réalisation, dans le cas de la première variante, lorsque le conduit 30 ne comporte pas de ramification ou deuxième conduit, le boîtier 71 intermédiaire comporte une seule ouverture.According to another embodiment, in the case of the first variant, when the conduit 30 does not have a branch or second conduit, the intermediate housing 71 has a single opening.

Ces ouvertures 720, 420 permettent, ainsi, chacune le raccordement d'un élément 90 supplémentaire.These openings 720, 420 thus each allow the connection of an additional element 90.

Ainsi il n'y a pas de communication et donc pas de fuite entre les deux boîtiers 61, 71. Les vapeurs arrivant du conduit 30 de sortie des vapeurs de carburant sont directement évacuées à l'extérieur du boîtier intermédiaire 71, sans y pénétrer.Thus there is no communication and therefore no leak between the two boxes 61, 71. The vapors arriving from the fuel vapor outlet conduit 30 are directly evacuated outside the intermediate box 71, without penetrating it.

Le boîtier intermédiaire 71 permet ainsi le support des conduits 30, 40 et des raccordements 90 associées.The intermediate box 71 thus allows the support of the conduits 30, 40 and the associated connections 90.

Selon un mode de réalisation de l'invention, cet élément 90 supplémentaire est une vanne de sécurité illustrée figures 1 à 3.According to one embodiment of the invention, this additional element 90 is a safety valve illustrated figures 1 to 3 .

Selon un mode de réalisation, le dispositif 10 comporte deux vannes de sécurité illustrée figures 1 et 2a, 2b.According to one embodiment, the device 10 comprises two illustrated safety valves figures 1 and 2a, 2b .

Selon un mode de réalisation de l'invention, cet élément 90 supplémentaire est un connecteur visible, figures 2a et 2b, pour tout autre élément compatible avec le dispositif.According to one embodiment of the invention, this additional element 90 is a visible connector, figures 2a and 2b , for any other element compatible with the device.

Selon un mode de réalisation de l'invention, les deux conduits 40 et 300 sont disposés perpendiculairement l'un à l'autre. Plus précisément, ils forment un angle α de 90° ou différent de 90° l'un avec l'autre.According to one embodiment of the invention, the two conduits 40 and 300 are arranged perpendicular to each other. More precisely, they form an angle α of 90° or different from 90° with each other.

Selon un autre mode de réalisation de l'invention, les deux conduits sont disposés de façon à former un angle α' inférieur à 90°. Une telle configuration permet un meilleur débit.According to another embodiment of the invention, the two conduits are arranged so as to form an angle α' less than 90°. Such a configuration allows for better throughput.

L'angle α, α' étant l'angle formé par les deux conduits 300, 40 issus du conduit 30 de sortie des vapeurs de carburant.The angle α, α' being the angle formed by the two conduits 300, 40 coming from the fuel vapor outlet conduit 30.

Selon un mode de réalisation de l'invention, lorsque élément 90 supplémentaire est une vanne de sécurité celle-ci comporte un diaphragme 91 visible figures 2 a et 2b. Le diaphragme est configuré de façon à être maintenu en place dans le corps 94 de la vanne lors de l'assemblage de la vanne de sécurité 90. Selon une première variante de l'invention figure 2a, le diaphragme 91 comporte un évidemment 92 coopérant avec un ergot 95 formé dans le corps de la vanne. Le diaphragme est ainsi bloqué lors de l'assemblage. Selon une deuxième variante de l'invention figure 2b, l'extrémité 93 du diaphragme à un diamètre supérieur au diamètre du piston 91. Le diaphragme ne peut ainsi plus bouger, au déplacement près nécessaire à son fonctionnement, lorsqu'il est logé dans le corps 94 de la vanne 90 de sécurité.According to one embodiment of the invention, when additional element 90 is a safety valve, it comprises a visible diaphragm 91 figure 2 a and 2b. THE diaphragm is configured so as to be held in place in the body 94 of the valve during assembly of the safety valve 90. According to a first variant of the invention figure 2a , the diaphragm 91 comprises a recess 92 cooperating with a lug 95 formed in the body of the valve. The diaphragm is thus blocked during assembly. According to a second variant of the invention figure 2b , the end 93 of the diaphragm has a diameter greater than the diameter of the piston 91. The diaphragm can thus no longer move, within the movement necessary for its operation, when it is housed in the body 94 of the safety valve 90.

Les vapeurs de carburants circulants dans le dispositif 10 sont chargées en particules. Afin de protéger le noyau plongeur et d'éviter l'obstruction du conduit 30 de sortie des vapeurs de carburant, le dispositif 10 comporte un filtre 100 circulaire. Le filtre 100 est disposé sur le chemin des vapeurs de carburant en amont du noyau plongeur 70. Plus précisément, le filtre 100 est disposé au niveau de l'ouverture 21 du conduit 20 d'entrée et avant le noyau plongeur et l'orifice 23 du siège de clapet.The fuel vapors circulating in the device 10 are loaded with particles. In order to protect the plunger core and avoid obstruction of the fuel vapor outlet conduit 30, the device 10 comprises a circular filter 100. The filter 100 is disposed on the path of the fuel vapors upstream of the plunger core 70. More precisely, the filter 100 is disposed at the opening 21 of the inlet conduit 20 and before the plunger core and the orifice 23 of the valve seat.

Un tel filtre circulaire permet de bloquer les particules directement à la sortie du conduit 20 d'entrée des vapeurs de carburant et permet une circulation des vapeurs de carburant sans particule tout autour du système 60 électromagnétique.Such a circular filter makes it possible to block particles directly at the outlet of the fuel vapor inlet conduit 20 and allows particle-free circulation of fuel vapors all around the electromagnetic system 60.

Dans le cadre de l'invention, le filtre est un filtre anti-particules permettant de filtrer des particules dont la taille est supérieure ou égale à 50 µm.In the context of the invention, the filter is an anti-particle filter making it possible to filter particles whose size is greater than or equal to 50 µm.

Claims (8)

  1. An electromagnetic device (10) having:
    - an electromagnetic system (60) having a coil (63) that extends around a fixed core (62) in order to generate a magnetic field therein when it is supplied with electric power,
    - an element that is movable under the effect of the magnetic field generated by the coil (63), this movable element being in the form of a plunger core
    - a fuel vapor outlet duct (30) extending the electromagnetic system (60) disposed in an intermediate casing (71),
    - a first casing (61) in which the electromagnetic system (60) is disposed,
    characterized in that it comprises a circular filter (100) arranged on the path of the fuel vapors at an opening (21) of an inlet conduit (20) upstream of the electromagnetic system (60).
  2. The electromagnetic device (10) as claimed in claim 1, wherein the intermediate casing (71) is disposed in the continuation of the first casing (61).
  3. The electromagnetic device (10) as claimed in either of claims 1 and 2, wherein the fuel vapor outlet duct (30) continues inside the intermediate casing (71) and leads out of the casing through a different face (710) than the one (711) at which it passes into the intermediate casing (71).
  4. The electromagnetic device (10) as claimed in one of claims 1 to 3, wherein the fuel vapor outlet duct (30) splits into two ducts (40, 300).
  5. The electromagnetic device (10) as claimed in one of claims 1 to 4, having at least one additional element (90) connected to one end of the duct (40, 30).
  6. The electromagnetic device (10) as claimed in one of claims 1 to 5, having two safety valves (90).
  7. The electromagnetic device (10) as claimed in one of claims 4 and 5 to 6, when they are dependent on claim 4, wherein the two ducts (40) and (30) form an angle of 90°C with one another or an angle less than 90°C.
  8. The use of the device (10) as claimed in one of claims 1 to 7 in a motor vehicle.
EP19735503.5A 2018-06-22 2019-06-21 Electromagnetic device comprising a vapour outlet conduit arranged in an intermediate casing Active EP3811387B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1855587A FR3082992B1 (en) 2018-06-22 2018-06-22 ELECTROMAGNETIC DEVICE COMPRISING A VAPOR OUTLET DUCT DISPOSED IN AN INTERMEDIATE HOUSING
PCT/EP2019/066540 WO2019243611A1 (en) 2018-06-22 2019-06-21 Electromagnetic device comprising a vapour outlet conduit arranged in an intermediate casing

Publications (2)

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EP3811387A1 EP3811387A1 (en) 2021-04-28
EP3811387B1 true EP3811387B1 (en) 2024-04-10

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US (1) US11339746B2 (en)
EP (1) EP3811387B1 (en)
CN (1) CN112424890B (en)
FR (1) FR3082992B1 (en)
WO (1) WO2019243611A1 (en)

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FR3117551A1 (en) * 2020-12-10 2022-06-17 Valeo Systemes De Controle Moteur ELECTROMAGNETIC DEVICE COMPRISING A FUEL VAPOR FILTER
EP4352762A1 (en) 2021-06-09 2024-04-17 Valeo Systemes de Controle Moteur Assembly with a bobbin and a coil for an electromagnetic actuator

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FR3082992A1 (en) 2019-12-27
FR3082992B1 (en) 2023-06-30
US11339746B2 (en) 2022-05-24
US20210270214A1 (en) 2021-09-02
CN112424890B (en) 2023-08-01
CN112424890A (en) 2021-02-26
EP3811387A1 (en) 2021-04-28
WO2019243611A1 (en) 2019-12-26

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