WO2016027014A1 - Air conduit for cooling an accessory of a motor vehicle - Google Patents

Air conduit for cooling an accessory of a motor vehicle Download PDF

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Publication number
WO2016027014A1
WO2016027014A1 PCT/FR2015/051823 FR2015051823W WO2016027014A1 WO 2016027014 A1 WO2016027014 A1 WO 2016027014A1 FR 2015051823 W FR2015051823 W FR 2015051823W WO 2016027014 A1 WO2016027014 A1 WO 2016027014A1
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WO
WIPO (PCT)
Prior art keywords
air
duct
accessory
cooling
turbocharger
Prior art date
Application number
PCT/FR2015/051823
Other languages
French (fr)
Inventor
Jean-Louis Leronseur
Lucile BERNAZZANI
Sebastien RAGNEAU
Pascal Godard
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Priority to EP15753387.8A priority Critical patent/EP3183442B1/en
Publication of WO2016027014A1 publication Critical patent/WO2016027014A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P2001/005—Cooling engine rooms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/12—Turbo charger

Definitions

  • the invention is in the field of motor vehicle accessory cooling. More particularly, the invention relates to convection cooling of the housing.
  • Convective turbocharger housing cooling devices are known.
  • the implementation of the turbocharger on the engine is determined in such a way that the air flowing around the engine cools the turbo housing.
  • the design of such an arrangement requires having to compromise on the implementation of other accessory parts at the periphery of the turbocharger to ensure good airflow and therefore good cooling.
  • the turbocharger housing is cooled by the cooling circuit of the engine.
  • This configuration is particularly useful for turbochargers operating over large compression ranges or multi-stage turbochargers.
  • This configuration requires having to size the cooling circuit accordingly, to provide hoses for the delivery of the coolant and also the cooling management modes of the turbocharger.
  • the invention aims to overcome the problems below by providing a cooling solution for a turbocharger operating over a large compression range or having at least two compression stages.
  • the invention aims to allow the proper operation of the turbocharger, without that being degraded in its operation or its services.
  • This object is aimed at with the object of the invention which relates to an air duct for cooling a motor vehicle accessory, said duct comprising an air inlet, an air outlet and a section connecting the inlet to the outlet, the duct being characterized in that it comprises an air filtering element for cooling the accessory.
  • the filtration element is located at the air inlet of the air duct
  • the duct comprises means for fastening the duct to the casing of an engine of the motor vehicle,
  • the air inlet and the air outlet are located at different levels once the air duct has been fixed to the crankcase;
  • the air inlet of the duct is located lower than the outlet once the air duct has been fixed to the crankcase;
  • the air duct comprises two half-shells forming said air duct
  • the filtration element is a grid, and in that the grid is sized to have holes having a surface greater than 2 cm 2 ,
  • the accessory is a turbocharger with at least two stages.
  • FIG. 1 is a schematic representation of an air duct according to the invention
  • FIG. 2 is a diagrammatic representation of one of the two half-shells forming the air duct
  • FIG. 3 is a diagrammatic representation of one of the other of the two half-shells forming the air duct
  • FIG. 4 is a schematic representation of a front view of the air inlet of the air duct, in its preferred position of arrangement on a crankcase. detailed description
  • the engine compartment of the vehicle comprises, in addition to the internal combustion engine, a turbocharger, for example a turbocharger with at least two stages.
  • the compressor is disposed downstream of the internal combustion engine, according to the direction of flow of the air.
  • the turbocharger operates in an environment unfavorable to heat exchange.
  • the invention proposes a duct dedicated to the supply of air.
  • the duct 1 comprises an air inlet 3, an air outlet 5 and an intermediate section 7 extending from the air inlet 3 to the air outlet 5.
  • the air duct 1 serves to guide from the air to the turbocharger for cooling, this is particularly advantageous for complex powertrain (GMP) architectures and the space allocated is restricted, so that these constraints do not allow air to flow. optimally around the GMP.
  • the air duct 1 comprises a filter element 9 of the air intended to cool the casing of the turbocharger.
  • the filtration element 9 is a grid 11, the grid 11 is sized to include holes having a surface greater than 2 cm 2 .
  • the grid 11 is sized to include twelve holes of 3cm 2 each. This definition of sizing has the advantage of limiting the passage of particles of relatively large size.
  • the duct 1 captures and reorients the dynamic air flow that is obtained by moving the vehicle.
  • the conduit 1 captures and redirects the dynamic air flow of the engine compartment or air located, that is to say flowing, to a level close enough to the road, for example to a height of 210 mm to 280 mm.
  • the air inlet 3 is located approximately in this range of heights.
  • the air inlet 3 and the air outlet 5 comprise at least one opening through which the air for cooling the accessory circulates.
  • each opening may extend in a vertical plane.
  • the opening of the air inlet 3 extends in a plane perpendicular to that of the opening dedicated to the air outlet 5 so that the duct 1 reorients the collected air in order to direct it towards the accessory to cool.
  • the air duct 3 is arranged on the engine so that its air inlet 3 is disposed in vertical projection out of the engine casing.
  • the captured dynamic airflow improves the cooling of the accessory by diffusing air near the accessory to be cooled, here a turbocharger.
  • the dynamic air flow can allow particles located on the road which, by pressure velocity and dynamic pressure up the duct 1 of air to arrive on the housing of the turbocharger.
  • the crankcase temperature exceeds a hundred degree. This high temperature can melt the particles on the turbocharger housing and thus degrade the heat exchange between the turbocharger housing and the air conveyed by the duct 1 of air.
  • the reduction of heat exchange can lead to a degradation of the benefits of the turbocharger or even cause breakage of it.
  • the grid 11 previously described is located at the inlet of the duct 1 of air, in order to limit the introduction of particle as soon as possible.
  • the duct 1 of air is fixed on a wall, substantially vertical, of the motor housing and comprises for this purpose fastening means 13. Once the duct 1 of air fixed on the motor housing the air inlet and outlet 5 are located at different levels. In the embodiment shown in Figures 1, 2 and 4, the inlet of the duct 1 is located lower than the outlet.
  • the air inlet 3 and the air outlet 5 can be located at the same level, that is to say, both extend in the same direction. horizontal plane parallel to the ground, in which is also partly disposed the turbocharger.
  • the duct 1 of air is formed of two half-shells 15, 17 made of composite materials, for example of the fiberglass type.
  • the first half-shell 15 comprises the air outlet 5 and the second half-shell 17 comprises the air inlet 3 and the grid 11.
  • the two half-shells 15, 17 each comprise sidewalks 19 substantially identical and located vis-à-vis once the half-shells 15, 17 assembled together.
  • Sidewalks are intended to fix the two half-shells 15, 17 together by vibration welding (friction).
  • the sidewalks 19 are not continuous, that is to say that there is an interruption to be able to take into account the architectural environment, for example a roller (not shown) which would be close to the conduit 1.
  • the invention finds particular application for a heat engine accessory, including turbochargers at least two stages.
  • the arrangement of the air duct 1 on the crankcase allows a diffusion of cooling air in the immediate vicinity of the accessory to be cooled.
  • this calorie generating accessory may be an electrical machine requiring additional cooling.

Abstract

The invention relates to an air conduit (1) for cooling an accessory of a motor vehicle, said conduit (1) comprising an air inlet (3), an air outlet (5) and a section (7) connecting the inlet to the outlet. According to a main characteristic of the invention, the conduit (1) comprises an element (9) for filtering the air used to cool the accessory.

Description

Conduit d'air pour le refroidissement d'un accessoire de  Air duct for cooling an accessory
véhicule automobile  motor vehicle
Domaine de l'invention  Field of the invention
L'invention est dans le domaine du refroidissement d'accessoire de véhicule automobile. Plus particulièrement, l'invention se rapport au refroidissement de carter par convection.  The invention is in the field of motor vehicle accessory cooling. More particularly, the invention relates to convection cooling of the housing.
Etat de la technique State of the art
Il est connu des dispositifs de refroidissement de carters de turbocompresseur par convection. De manière connue, l'implantation du turbocompresseur sur le moteur thermique est déterminée de telle manière à ce que le l'air circulant autour du moteur refroidit le carter du turbo. La conception d'une telle disposition nécessite de devoir faire des compromis sur l'implantation d'autres pièces accessoires à la périphérie du turbocompresseur pour assurer un bon écoulement d'air et donc un bon refroidissement. Convective turbocharger housing cooling devices are known. In known manner, the implementation of the turbocharger on the engine is determined in such a way that the air flowing around the engine cools the turbo housing. The design of such an arrangement requires having to compromise on the implementation of other accessory parts at the periphery of the turbocharger to ensure good airflow and therefore good cooling.
Selon une autre variante connue, le carter du turbocompresseur est refroidit par le circuit de refroidissement du moteur thermique. On trouve, notamment, cette configuration pour les turbocompresseurs travaillant sur de grandes plages de compression ou des turbocompresseurs à plusieurs étages. Cette configuration nécessite de devoir dimensionner le circuit de refroidissement en conséquence, de prévoir des durites pour l'acheminement du liquide de refroidissement et également les modes de gestion du refroidissement du turbocompresseur. According to another known variant, the turbocharger housing is cooled by the cooling circuit of the engine. This configuration is particularly useful for turbochargers operating over large compression ranges or multi-stage turbochargers. This configuration requires having to size the cooling circuit accordingly, to provide hoses for the delivery of the coolant and also the cooling management modes of the turbocharger.
Objet de l'invention Object of the invention
L'invention vise à pallier les problèmes ci-dessous en proposant une solution de refroidissement d'un turbocompresseur fonctionnant sur une grande plage de compression ou comportant au moins deux étages de compression. L'invention vise à permettre le bon fonctionnement du turbocompresseur, sans que celui soit dégradé dans son fonctionnement ou ses prestations. On tend vers ce but avec l'objet de l'invention qui a trait à un conduit d'air pour le refroidissement d'un accessoire de véhicule automobile, ledit conduit comportant une entrée d'air, une sortie d'air et un tronçon reliant l'entrée à la sortie, le conduit étant caractérisé en ce qu'il comporte un élément de filtration de l'air destiné à refroidir l'accessoire. The invention aims to overcome the problems below by providing a cooling solution for a turbocharger operating over a large compression range or having at least two compression stages. The invention aims to allow the proper operation of the turbocharger, without that being degraded in its operation or its services. This object is aimed at with the object of the invention which relates to an air duct for cooling a motor vehicle accessory, said duct comprising an air inlet, an air outlet and a section connecting the inlet to the outlet, the duct being characterized in that it comprises an air filtering element for cooling the accessory.
Le conduit d'air objet de l'invention comporte l'une quelconque des caractéristiques techniques suivantes prises isolément ou en combinaison entre-elles : The air duct which is the subject of the invention comprises any of the following technical characteristics taken separately or in combination with one another:
- l'élément de filtration est situé au niveau de l'entrée d'air du conduit d'air, the filtration element is located at the air inlet of the air duct,
- le conduit comprend des moyens de fixation du conduit sur le carter d'un moteur du véhicule automobile, the duct comprises means for fastening the duct to the casing of an engine of the motor vehicle,
- l'entrée d'air et la sortie d'air sont situées à des niveaux différents une fois le conduit d'air fixée au carter moteur, the air inlet and the air outlet are located at different levels once the air duct has been fixed to the crankcase;
- l'entrée d'air du conduit est située plus bas que la sortie une fois le conduit d'air fixée au carter moteur, the air inlet of the duct is located lower than the outlet once the air duct has been fixed to the crankcase;
- le conduit d'air comporte deux demi-coquilles formant ledit conduit d'air, the air duct comprises two half-shells forming said air duct,
- l'élément de filtration est une grille, et en ce que la grille est dimensionnée pour comporter des trous ayant une surface supérieure à 2cm2, the filtration element is a grid, and in that the grid is sized to have holes having a surface greater than 2 cm 2 ,
- l'accessoire est un turbocompresseur à au moins deux étages. - the accessory is a turbocharger with at least two stages.
Bref description des dessins Brief description of the drawings
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés sur les dessins annexés, dans lesquels : Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention given as non-restrictive examples and shown in the accompanying drawings, in which:
- la figure 1 est une représentation schématique d'un conduit d'air selon l'invention, FIG. 1 is a schematic representation of an air duct according to the invention,
- la figure 2 est une représentation schématique d'une d'entre les deux demi- coquilles formant le conduit d'air, - la figure 3 est une représentation schématique d'une de l'autre d'entre les deux demi-coquilles formant le conduit d'air, et FIG. 2 is a diagrammatic representation of one of the two half-shells forming the air duct, FIG. 3 is a diagrammatic representation of one of the other of the two half-shells forming the air duct, and
- la figure 4 est une représentation schématique d'une vue de face de l'entrée d'air du conduit d'air, dans sa position préférée d'agencement sur un carter moteur. Description détaillée  - Figure 4 is a schematic representation of a front view of the air inlet of the air duct, in its preferred position of arrangement on a crankcase. detailed description
Dans la description qui va suivre, telle qu'illustrée dans les figures 1 à 4, qui porte sur un mode de réalisation d'un conduit 1 d'air pour le refroidissement d'un accessoire embarqué dans un véhicule, de préférence du type d'une automobile, dont la chaîne de traction est équipée d'un moteur à combustion interne suralimenté en air. Pour ce faire, le compartiment moteur du véhicule comprend, outre le moteur à combustion interne, un turbocompresseur, par exemple un turbocompresseur à au moins deux étages. In the following description, as illustrated in Figures 1 to 4, which relates to an embodiment of an air duct 1 for cooling an accessory embedded in a vehicle, preferably of the type d 'an automobile, whose traction chain is equipped with an internal combustion engine supercharged with air. To do this, the engine compartment of the vehicle comprises, in addition to the internal combustion engine, a turbocharger, for example a turbocharger with at least two stages.
Selon une architecture particulière, le compresseur est disposé en aval du moteur à combustion interne, selon le sens d'écoulement de l'air. Ainsi logé, entre le moteur et une cloison de séparation délimitant le compartiment moteur de l'habitacle, le turbocompresseur évolue dans un environnement peu propice à l'échange thermique. Afin d'améliorer l'échange thermique du turbocompresseur avec de l'air extérieur, l'invention propose un conduit dédié à l'apport d'air. According to a particular architecture, the compressor is disposed downstream of the internal combustion engine, according to the direction of flow of the air. Thus housed between the engine and a partition wall defining the engine compartment of the passenger compartment, the turbocharger operates in an environment unfavorable to heat exchange. In order to improve the thermal exchange of the turbocharger with outside air, the invention proposes a duct dedicated to the supply of air.
Le conduit 1 comporte une entrée d'air 3, une sortie d'air 5 et un tronçon 7 intermédiaire s'étendant depuis l'entrée d'air 3 vers la sortie d'air 5. Le conduit 1 d'air permet de guider de l'air vers le turbocompresseur afin de le refroidir, ceci est particulièrement avantageux pour architectures des groupes motopropulseurs (GMP) complexes et que l'espace alloué est restreint, si bien que ces contraintes ne permettent pas à l'air de s'écouler de manière optimum autour du GMP. De plus, le conduit 1 d'air comporte un élément de filtration 9 de l'air destiné à refroidir le carter du turbocompresseur. Dans l'exemple illustré 1, 2 et 4, l'élément de filtration 9 est une grille 11, la grille 11 est dimensionnée pour comporter des trous ayant une surface supérieure à 2cm2. Par exemple dans ce mode de réalisation, la grille 11 est dimensionnée pour comporter douze trous de 3cm2 chacun. Cette définition du dimensionnement présente l'avantage de limiter le passage de particules de taille relativement importante. The duct 1 comprises an air inlet 3, an air outlet 5 and an intermediate section 7 extending from the air inlet 3 to the air outlet 5. The air duct 1 serves to guide from the air to the turbocharger for cooling, this is particularly advantageous for complex powertrain (GMP) architectures and the space allocated is restricted, so that these constraints do not allow air to flow. optimally around the GMP. In addition, the air duct 1 comprises a filter element 9 of the air intended to cool the casing of the turbocharger. In the illustrated example 1, 2 and 4, the filtration element 9 is a grid 11, the grid 11 is sized to include holes having a surface greater than 2 cm 2 . For example in this embodiment, the grid 11 is sized to include twelve holes of 3cm 2 each. This definition of sizing has the advantage of limiting the passage of particles of relatively large size.
Le conduit 1 capte et réoriente le flux d'air dynamique qui est obtenu par le déplacement du véhicule. Le conduit 1 capte et réoriente le flux d'air dynamique du compartiment moteur ou de l'air situé, c'est-à-dire s'écoulant, à un niveau assez proche de la route, par exemple à une hauteur située de 210 mm à 280 mm. L'entrée d'air 3 est située approximativement dans cette plage de hauteurs. The duct 1 captures and reorients the dynamic air flow that is obtained by moving the vehicle. The conduit 1 captures and redirects the dynamic air flow of the engine compartment or air located, that is to say flowing, to a level close enough to the road, for example to a height of 210 mm to 280 mm. The air inlet 3 is located approximately in this range of heights.
L'entrée d'air 3 et la sortie d'air 5 comprennent au moins une ouverture au travers de laquelle circule l'air destiné au refroidissement de l'accessoire. Selon le mode de réalisation illustré sur la figure 4, chaque ouverture peut s'étendre dans un plan vertical. L'ouverture de l'entrée d'air 3 s'étend dans un plan perpendiculaire à celui de l'ouverture dédiée à la sortie d'air 5 de sorte que le conduit 1 réoriente l'air collecté afin de le diriger en direction de l'accessoire à refroidir. The air inlet 3 and the air outlet 5 comprise at least one opening through which the air for cooling the accessory circulates. According to the embodiment illustrated in FIG. 4, each opening may extend in a vertical plane. The opening of the air inlet 3 extends in a plane perpendicular to that of the opening dedicated to the air outlet 5 so that the duct 1 reorients the collected air in order to direct it towards the accessory to cool.
Selon une variante de réalisation, le conduit d'air 3 est agencé sur le moteur de telle sorte que son entrée d'air 3 est disposée en saillie verticale hors du carter moteur. According to an alternative embodiment, the air duct 3 is arranged on the engine so that its air inlet 3 is disposed in vertical projection out of the engine casing.
Le flux d'air dynamique capté améliore le refroidissement de l'accessoire en diffusant un air à proximité de l'accessoire à refroidir, ici un turbocompresseur. Le flux d'air dynamique peut permettre à des particules situées sur la route qui, de par la pression la vitesse et la pression dynamique, remontent le conduit 1 d'air pour arriver sur le carter du turbocompresseur. Hors lorsque le turbocompresseur fonctionne à pleine charge la température du carter dépasse une centaine de degré. Cette température élevée peut faire fondre les particules sur le carter du turbocompresseur et ainsi de dégrader les échanges thermiques entre le carter du turbocompresseur et l'air acheminé par le conduit 1 d'air. La réduction des échanges thermiques peut entraîner une dégradation des prestations du turbocompresseur voire entraîner la casse de celui- ci. The captured dynamic airflow improves the cooling of the accessory by diffusing air near the accessory to be cooled, here a turbocharger. The dynamic air flow can allow particles located on the road which, by pressure velocity and dynamic pressure up the duct 1 of air to arrive on the housing of the turbocharger. Off when the turbocharger is operating at full load the crankcase temperature exceeds a hundred degree. This high temperature can melt the particles on the turbocharger housing and thus degrade the heat exchange between the turbocharger housing and the air conveyed by the duct 1 of air. The reduction of heat exchange can lead to a degradation of the benefits of the turbocharger or even cause breakage of it.
La grille 11 précédemment décrite est située au niveau de l'entrée du conduit 1 d'air, afin de limiter l'introduction de particule le plus tôt possible. The grid 11 previously described is located at the inlet of the duct 1 of air, in order to limit the introduction of particle as soon as possible.
Le conduit 1 d'air est fixé sur une paroi, sensiblement verticale, du carter moteur et comporte à cet effet des moyens de fixation 13. Une fois le conduit 1 d'air fixé sur le carter moteur l'entrée et la sortie d'air 5 sont situées à des niveaux différents. Dans le mode de réalisation représenté dans les figures 1, 2 et 4, l'entrée du conduit 1 est située plus bas que la sortie. The duct 1 of air is fixed on a wall, substantially vertical, of the motor housing and comprises for this purpose fastening means 13. Once the duct 1 of air fixed on the motor housing the air inlet and outlet 5 are located at different levels. In the embodiment shown in Figures 1, 2 and 4, the inlet of the duct 1 is located lower than the outlet.
Selon une variante d'agencement du conduit sur le carter moteur, l'entrée d'air 3 et la sortie d'air 5 peuvent être situées au même niveau, c'est-à-dire s'étendre tous les deux dans un même plan horizontal parallèle au sol, dans lequel est également en partie disposé le turbocompresseur. According to an alternative arrangement of the duct on the crankcase, the air inlet 3 and the air outlet 5 can be located at the same level, that is to say, both extend in the same direction. horizontal plane parallel to the ground, in which is also partly disposed the turbocharger.
Le conduit 1 d'air est formé de deux demi-coquilles 15, 17 en matériaux composites, par exemple du type en fibre de verre. Une première demi-coquille 15 destinée à porter les moyens de fixation 13 et une deuxième demi-coquille 17. Dans ce mode de réalisation, la première demi-coquille 15 comporte la sortie d'air 5 et la deuxième demi-coquille 17 comporte l'entrée d'air 3 ainsi que la grille 11. The duct 1 of air is formed of two half-shells 15, 17 made of composite materials, for example of the fiberglass type. A first half-shell 15 intended to carry the fastening means 13 and a second half-shell 17. In this embodiment, the first half-shell 15 comprises the air outlet 5 and the second half-shell 17 comprises the air inlet 3 and the grid 11.
Les deux demi-coquilles 15, 17 comportent, chacune, des trottoirs 19 sensiblement identiques et situés en vis-à-vis une fois les demi-coquilles 15, 17 assemblées ensemble. Les trottoirs sont destinés à fixer les deux demi-coquilles 15, 17 ensembles par un soudage par vibrations (friction). Dans le mode de réalisation présenté, les trottoirs 19 ne sont pas continus, c'est-à-dire qu'il y a une interruption pour pouvoir permettre de tenir compte de l'environnement architectural, par exemple un galet (non représenté) qui serait à proximité du conduit 1. L'invention trouve particulière son application pour un accessoire de moteur thermique, notamment les turbocompresseurs au moins à deux étages. The two half-shells 15, 17 each comprise sidewalks 19 substantially identical and located vis-à-vis once the half-shells 15, 17 assembled together. Sidewalks are intended to fix the two half-shells 15, 17 together by vibration welding (friction). In the embodiment shown, the sidewalks 19 are not continuous, that is to say that there is an interruption to be able to take into account the architectural environment, for example a roller (not shown) which would be close to the conduit 1. The invention finds particular application for a heat engine accessory, including turbochargers at least two stages.
Selon l'invention, l'agencement du conduit d'air 1 sur le carter moteur permet une diffusion d'air de refroidissement à proximité immédiate de l'accessoire à refroidir. According to the invention, the arrangement of the air duct 1 on the crankcase allows a diffusion of cooling air in the immediate vicinity of the accessory to be cooled.
A titre d'exemple, cet accessoire générateur de calories peut être une machine électrique nécessitant un refroidissement additionnel. For example, this calorie generating accessory may be an electrical machine requiring additional cooling.

Claims

Revendications claims
1. Conduit (1) d'air pour le refroidissement d'un accessoire de véhicule automobile, ledit conduit (1) comportant une entrée d'air (3), une sortie d'air (5) et un tronçon (7) reliant l'entrée à la sortie, An air duct (1) for cooling a motor vehicle accessory, said duct (1) comprising an air inlet (3), an air outlet (5) and a connecting section (7). the entrance to the exit,
le conduit (1) est caractérisé en ce qu'il comporte un élément de filtration (9) de l'air destiné à refroidir l'accessoire.  the duct (1) is characterized in that it comprises a filter element (9) of the air for cooling the accessory.
2. Conduit (1) d'air selon la revendication 1, caractérisé en ce que l'élément de filtration (9) est situé au niveau de l'entrée d'air (3) du conduit (1) d'air. 2. duct (1) of air according to claim 1, characterized in that the filter element (9) is located at the air inlet (3) of the duct (1) of air.
3. Conduit (1) d'air selon la revendication 1 ou 2, caractérisé en ce qu'il comporte des moyens de fixation (13) du conduit (1) sur le carter d'un moteur du véhicule automobile. 3. duct (1) of air according to claim 1 or 2, characterized in that it comprises fastening means (13) of the duct (1) on the housing of an engine of the motor vehicle.
4. Conduit (1) d'air selon la revendication 3, caractérisé en ce que l'entrée d'air (3) et la sortie d'air (5) sont situées à des niveaux différents une fois le conduit (1) d'air fixée au carter moteur. 4. duct (1) of air according to claim 3, characterized in that the air inlet (3) and the air outlet (5) are located at different levels once the conduit (1) d air attached to the crankcase.
5. Conduit (1) d'air selon la revendication 3 ou 4, caractérisé en ce que l'entrée d'air (3) du conduit (1) est située plus bas que la sortie une fois le conduit (1) d'air fixée au carter moteur. 5. duct (1) of air according to claim 3 or 4, characterized in that the air inlet (3) of the duct (1) is located lower than the outlet once the duct (1) of air attached to the crankcase.
6. Conduit (1) d'air selon l'une des revendications 1 à 5, caractérisé en ce qu'il comporte deux demi-coquilles (15, 17) formant ledit conduit (1) d'air. 6. duct (1) of air according to one of claims 1 to 5, characterized in that it comprises two half-shells (15, 17) forming said duct (1) of air.
7. Conduit (1) d'air selon l'une des revendications 1 à 6, caractérisé en ce que l'élément de filtration (9) est une grille (11), et en ce que la grille (11) est dimensionnée pour comporter des trous ayant une surface supérieure à 2cm2. 7. duct (1) of air according to one of claims 1 to 6, characterized in that the filter element (9) is a grid (11), and in that the grid (11) is dimensioned to have holes with an area greater than 2cm 2 .
8. Conduit (1) d'air selon l'une des revendications 1 à 7, caractérisé en ce que l'accessoire est un turbocompresseur à au moins deux étages. 8. duct (1) of air according to one of claims 1 to 7, characterized in that the accessory is a turbocharger at least two stages.
PCT/FR2015/051823 2014-08-19 2015-07-02 Air conduit for cooling an accessory of a motor vehicle WO2016027014A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15753387.8A EP3183442B1 (en) 2014-08-19 2015-07-02 Air conduit for cooling an accessory of a motor vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1457880A FR3025002B1 (en) 2014-08-19 2014-08-19 AIR DUCT FOR COOLING AN AUTOMOTIVE VEHICLE ACCESSORY
FR1457880 2014-08-19

Publications (1)

Publication Number Publication Date
WO2016027014A1 true WO2016027014A1 (en) 2016-02-25

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Application Number Title Priority Date Filing Date
PCT/FR2015/051823 WO2016027014A1 (en) 2014-08-19 2015-07-02 Air conduit for cooling an accessory of a motor vehicle

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EP (1) EP3183442B1 (en)
FR (1) FR3025002B1 (en)
WO (1) WO2016027014A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175939A2 (en) * 1984-09-22 1986-04-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Vehicle with an inlet conduit for a supercharged air cooler
EP1048832A1 (en) * 1999-04-27 2000-11-02 IVECO FIAT S.p.A. "Supercharged internal-combustion engine"
US20080142285A1 (en) * 2006-12-18 2008-06-19 Caterpillar Inc. Airflow redirector
DE102007049770A1 (en) * 2007-10-17 2009-04-23 Agco Gmbh Cooling arrangement for a commercial vehicle
US20120228044A1 (en) * 2011-03-10 2012-09-13 Kia Motors Corporation Wind flux concentration guiding device and engine room layout thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175939A2 (en) * 1984-09-22 1986-04-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Vehicle with an inlet conduit for a supercharged air cooler
EP1048832A1 (en) * 1999-04-27 2000-11-02 IVECO FIAT S.p.A. "Supercharged internal-combustion engine"
US20080142285A1 (en) * 2006-12-18 2008-06-19 Caterpillar Inc. Airflow redirector
DE102007049770A1 (en) * 2007-10-17 2009-04-23 Agco Gmbh Cooling arrangement for a commercial vehicle
US20120228044A1 (en) * 2011-03-10 2012-09-13 Kia Motors Corporation Wind flux concentration guiding device and engine room layout thereof

Also Published As

Publication number Publication date
EP3183442A1 (en) 2017-06-28
FR3025002B1 (en) 2019-07-12
FR3025002A1 (en) 2016-02-26
EP3183442B1 (en) 2021-02-03

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