WO2013104468A1 - Air intake system for supplying air to the heat engine of a vehicle - Google Patents

Air intake system for supplying air to the heat engine of a vehicle Download PDF

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Publication number
WO2013104468A1
WO2013104468A1 PCT/EP2012/074646 EP2012074646W WO2013104468A1 WO 2013104468 A1 WO2013104468 A1 WO 2013104468A1 EP 2012074646 W EP2012074646 W EP 2012074646W WO 2013104468 A1 WO2013104468 A1 WO 2013104468A1
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WO
WIPO (PCT)
Prior art keywords
air intake
vehicle
orifice
valve
engine
Prior art date
Application number
PCT/EP2012/074646
Other languages
French (fr)
Inventor
Mathieu DESCHAMPS
Original Assignee
Renault Sas
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 Sas filed Critical Renault Sas
Publication of WO2013104468A1 publication Critical patent/WO2013104468A1/en

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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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • F02M35/088—Water, snow or ice proofing; Separation or drainage of water, snow or ice
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10013—Means upstream of the air filter; Connection to the ambient air
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face

Definitions

  • the invention relates to an air intake system for supplying air to a heat engine of a vehicle, and the corresponding vehicle.
  • the motor vehicles require the realization of an air intake to supply the engine with air.
  • the air sucked into the air intake is routed to the engine to fuel the fuel.
  • a filter is disposed on the path of air before entering the engine.
  • the air intake can be positioned inside the engine compartment.
  • the air sucked is the air surrounding the engine: it is heated by the operation of the engine, which can cause a loss of power of the engine, especially when the vehicle is stopped.
  • one solution is to position the air intake on the front of the vehicle.
  • the air intake is usually located high on the front of the vehicle.
  • a high layout is however not compatible with all vehicle architectures and can also be problematic in terms of pedestrian safety, the air intake forming a hard point at the front of the vehicle.
  • the invention aims to overcome these disadvantages by providing an air intake system on the front of the vehicle that prevents the introduction of water or snow into the engine without limiting the flow of incoming air and which can be positioned on any type of vehicle architecture.
  • the subject of the invention relates to an air intake system for supplying air to a heat engine of a vehicle, the system comprising:
  • an air intake orifice intended to be positioned on an outer face of the vehicle, in particular a front face of the vehicle,
  • the duct comprising an evacuation orifice, the duct and the evacuation orifice being shaped to allow the evacuation of water or snow introduced via the intake orifice,
  • valve for closing the discharge orifice and valve articulation means, the valve and its hinge means being arranged so that the valve is movable between a closed position in which the valve the discharge orifice is closed and an open position located outside the duct in which the discharge orifice is free.
  • the conduit passage section is thus free whatever the position of the valve, the air flow is not reduced when water or snow must be removed, unlike the solution presented in JP2010- 121594A1.
  • the arrangement according to the invention makes it possible to keep the valve closed when the vehicle is stationary and thus to avoid the aspiration of hot air coming from the engine, the air sucked from outside the vehicle.
  • valve can be kept open while driving the vehicle, to allow the evacuation of water or snow that may have entered the duct via the intake port.
  • the hinge means are for example designed or controlled to allow the closure of the valve at the stop of the vehicle and its opening during the driving of the vehicle.
  • Elastic return means for example springs, could be envisaged to keep the valve closed.
  • such devices are sensitive to wear or dirt and are likely to lock up with use.
  • the discharge orifice is located in a substantially vertical plane and the hinge means comprise an axis of articulation of the valve located along an upper edge of the orifice discharge, the valve being shaped so as to close the discharge orifice under the effect of its weight and to release the discharge orifice under the effect of a pressure exerted by a fluid entering the conduit when driving the vehicle.
  • the fluid considered may be the flow of air flowing in the duct due to the rolling of the vehicle, or the water or snow introduced into the duct during the rolling of the vehicle.
  • the duct extends substantially horizontally between the intake orifice and the discharge orifice in the mounted position of the system in a vehicle, which can facilitate evacuation via the orifice for discharging a fluid present in the conduit, such as water or snow.
  • the engine intake port is higher than the discharge orifice and / or the air intake orifice, which can further reduce the risk of aspiration of water or snow in the engine via the engine inlet.
  • the engine inlet port may be higher than the exhaust port and / or the air intake port at a distance of at least 30mm.
  • the surface of the discharge orifice may be greater than the surface of the air intake orifice, which may also make it possible to further reduce the risk of suctioning water or snow in the engine via the engine intake port allowing the evacuation of large amounts of water or snow.
  • the conduit and the valve can be made of a plastic part and the hinge means comprise a hinge formed by a zone of thinned material between an edge of the discharge orifice and the valve.
  • the hinge means comprise a hinge formed by a zone of thinned material between an edge of the discharge orifice and the valve.
  • the duct may comprise a baffle positioned between the discharge orifice and the air intake orifice, which may make it possible to prevent water droplets from reaching the water outlet. air intake port.
  • This deflector can be integrated in the conduit or be reported. It can also be formed by a suitable configuration of the conduit.
  • Another object of the invention is a motor vehicle comprising an air intake system according to the invention, wherein the air intake port opens on an outer face of the vehicle, in particular a front face of the vehicle.
  • the evacuation orifice opens into a compartment of the vehicle containing the engine.
  • the air intake system may be arranged in the vehicle so that the duct of the intake system extends substantially in the longitudinal direction of the vehicle.
  • This air intake system can also be fixed to a fixed structural element of the vehicle, for example the technical front.
  • the single figure is a schematic sectional representation of the front portion of a vehicle equipped with an air intake system according to one embodiment of the invention.
  • front, rear refer to the front and rear directions of the vehicle, when the air intake system is mounted on the vehicle and the terms upper, lower, upper, lower, refer to the direction vertical, in the mounted position of the system on the vehicle.
  • the X, Y, Z axes correspond respectively to the longitudinal axis (front to back), transverse (to the right of the vehicle) and vertical (upwards) of the vehicle.
  • Direction / plane substantially horizontal, longitudinal or vertical means a direction / plane forming an angle of ⁇ 20 ° C with a direction / a horizontal, longitudinal or vertical plane.
  • the single figure shows schematically the front portion 10 of a vehicle and more particularly the hood 12 of the vehicle and its front face 14.
  • This front part 10 of the vehicle is equipped with an air intake system 20 for supplying air to the engine of the vehicle.
  • This air intake system 20 comprises:
  • an intake orifice 22 positioned on an outer face 14 of the vehicle, typically the front face of the vehicle,
  • duct 26 connecting the air intake orifice 22 to the engine intake port 24.
  • the air intake port 22 is positioned on an outer face 14 receiving fresh air when the vehicle is moving forward.
  • the illustrated case focuses on an air intake on a front of the vehicle.
  • the fresh air intake port may be located at the rear of the shield, and more precisely between the shield and the radiator, or in another variant not illustrated on the body sides of the vehicle.
  • the conduit 26 comprises a discharge orifice 28 and a valve 30 for closing the discharge orifice 28.
  • the conduit 26 and the discharge orifice 28 are shaped to allow the evacuation of water or snow introduced via the air intake orifice 22.
  • the discharge port 30 opens into the engine compartment 16 of the vehicle.
  • the valve 30 is connected to the conduit 26 by hinge means of the valve.
  • the valve 30 and its hinge means are arranged so that the valve 30 is movable between a closed position in which the discharge orifice 28 is closed and an open position located outside the conduit in which the orifice evacuation 28 is free.
  • the valve 30 is thus mounted on the duct 26 so as to open towards the outside of the duct 26, so as not to obstruct the section internal conduit 26 and thus not reduce the flow of air to the motor.
  • the discharge orifice 28 is located in a substantially vertical plane and the hinge means comprise a hinge axis 32 of the valve 30 located on an upper edge 29 of the discharge orifice 28. .
  • This hinge pin 32 is for example formed by a hinge film between the valve 30 and the conduit 26 made of a single piece of molded plastic material.
  • the valve 30 is shaped so as to close the discharge orifice 28 under the effect of its weight and to release the discharge orifice 28 under the effect of the pressure of a fluid entering the conduit during the running of the vehicle, such as the flow of air flowing in the duct due to the rolling of the vehicle, or the water or snow introduced into the duct during the driving of the vehicle.
  • the opening / closing of the valve 30 is thus obtained automatically because of the rolling or stopping of the vehicle.
  • such an arrangement allows the flow of water or snow via the discharge port 28 even when the vehicle is stopped, which reduces the risk that the air flow entering the engine is insufficient for the operation of the engine.
  • the conduit 26 shown extends substantially horizontally between the air intake port 22 and the exhaust port 28 in the mounted position of the system in the vehicle.
  • this duct extends substantially in the longitudinal direction X of the vehicle.
  • the engine intake port 24 is higher than the exhaust port 28 and the air intake port 22.
  • the engine intake port 24 will preferably be at a distance of at least 30 mm from the discharge port 28. This distance corresponds to the distance between the lower edges of the two orifices, as shown in FIG.
  • This engine intake opening 24 is furthermore situated substantially above the discharge orifice 28.
  • the conduit 26 comprises a substantially horizontal portion 26a between the air intake orifice 22 and the discharge orifice 28 and a substantially vertical portion 26b between the discharge orifice 28 and the motor inlet 24.
  • This vertical part 26b of the conduit 26 may have larger internal dimensions than those of the horizontal portion 26a.
  • the dimensions and / or the shape of the duct 26 will, for example, be determined in order to limit the pressure drops between the air intake orifice 22 and the engine intake orifice 24. They may also depend on the environment of the vehicle.
  • the cross section of the duct 26 may be increasing from the air intake orifice 22 to the discharge orifice 28, in particular the height of the duct may increase, the bottom remaining substantially horizontal, as shown in FIG. example. This may facilitate the passage of air to the engine intake port 24 when snow or water is clogging the conduit 26.
  • the surface of the discharge port 28 is preferably larger than the surface of the air intake port 22 to facilitate the evacuation of large amounts of water or snow.
  • the duct 26 comprises a deflector 34 positioned between the discharge orifice 28 and the air intake orifice 24, in order to deflect the water droplets or particles of snow and to prevent them from reaching to the air inlet 24.
  • the position of the deflector 34 will depend on the shape of the conduit 26.
  • the deflector may be constituted by the conduit 26 itself, whose internal shape may be shaped to play the role of deflector.
  • this deflector 34 extends substantially horizontally and is connected to the conduit 26 between the horizontal portion 26a of the conduit 26 and its vertical portion 26b, thus separating these two parts.
  • the deflector 34 shown is located substantially opposite the hinge 32 of the valve 30 and has a slightly curved shape so the concavity is directed upwards.
  • This deflector 34 may be integrated in the conduit 26 or be reported. It can also be formed by a suitable configuration of the conduit.
  • the air intake system 20 described can be attached to a fixed structural element of the vehicle, for example the front technical (not shown).
  • valve 30 When the vehicle is stationary, the valve 30 is kept in the closed position because of its own weight and closes the discharge opening 28. It may possibly open under a pressure of water or snow, for example under the effect a significant quantity of water entering through the air intake orifice 22 or under the effect of water coming from the melting snow present in the conduit 26.
  • the air entering through the air intake 22 circulates in the conduit 26 to the engine intake port 24.
  • the valve 30 opens slightly automatically, thus permitting the permanent evacuation of water or snow having entered the duct 26 with the air.
  • the opening of the flap 30 can be enlarged under the effect of the thrust of a large amount of water or snow present in the conduit 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to an air intake system (20) for supplying air to the heat engine of a vehicle, comprising: - an air intake port (22), - and engine intake port (24), - a pipe (26) connecting the air intake port (22) to the engine intake port (24), characterised in that the pipe (26) comprises a discharge port (28), the pipe (26) and the discharge port (28) being shaped for the discharge of water or snow that has entered via the air intake port (22) and in that it comprises a valve (30) for closing the discharge port (28) and means for articulating the valve (30) arranged such that the valve (30) is movable between a closed position blocking the discharge port (28) and an open position outside the pipe releasing said port (28). The invention also relates to a vehicle fitted with such an air intake system (20).

Description

SYSTEME DE PRISE D'AIR POUR L'ALIMENTATION EN AIR D'UN MOTEUR THERMIQUE D'UN VEHICULE  AIR INTAKE SYSTEM FOR THE AIR SUPPLY OF A THERMAL MOTOR OF A VEHICLE
L'invention concerne un système de prise d'air pour l'alimentation en air d'un moteur thermique d'un véhicule, et le véhicule correspondant. The invention relates to an air intake system for supplying air to a heat engine of a vehicle, and the corresponding vehicle.
Les véhicules à moteur thermique nécessitent la réalisation d'une prise d'air pour alimenter le moteur en air. L'air aspiré au niveau de la prise d'air est acheminé jusqu'au moteur afin d'assurer la combustion du carburant. Généralement, un filtre est disposé sur le trajet de l'air avant son entrée dans le moteur.  The motor vehicles require the realization of an air intake to supply the engine with air. The air sucked into the air intake is routed to the engine to fuel the fuel. Generally, a filter is disposed on the path of air before entering the engine.
La prise d'air peut être positionnée à l'intérieur du compartiment moteur. Dans ce cas, l'air aspiré est l'air environnant le moteur : il est donc chauffé du fait du fonctionnement du moteur, ce qui peut provoquer une perte de puissance du moteur, en particulier lorsque le véhicule est à l'arrêt.  The air intake can be positioned inside the engine compartment. In this case, the air sucked is the air surrounding the engine: it is heated by the operation of the engine, which can cause a loss of power of the engine, especially when the vehicle is stopped.
Afin d'éviter l'aspiration d'air chaud à l'arrêt du véhicule, une solution consiste à positionner la prise d'air en face avant du véhicule. To avoid the aspiration of hot air when the vehicle stops, one solution is to position the air intake on the front of the vehicle.
Toutefois, dans ce cas, il est nécessaire d'éviter l'introduction d'eau, notamment lors de passages en gué, ou de neige avec l'air afin de préserver l'intégrité du moteur. Pour cette raison, la prise d'air est généralement implantée en hauteur sur la face avant du véhicule. Une implantation haute n'est toutefois pas compatible avec toutes les architectures de véhicule et peut également être problématique en termes de sécurité piéton, la prise d'air formant un point dur à l'avant du véhicule. However, in this case, it is necessary to avoid the introduction of water, especially during fording, or snow with air to preserve the integrity of the engine. For this reason, the air intake is usually located high on the front of the vehicle. A high layout is however not compatible with all vehicle architectures and can also be problematic in terms of pedestrian safety, the air intake forming a hard point at the front of the vehicle.
D'autres solutions consistent à prévoir la fermeture de la prise d'air en face avant lors d'une montée de l'eau, tel que décrit dans le document JP2010- 121594A1. Toutefois, la fermeture de la prise d'air signifie une réduction du débit d'air entrant, ce qui peut entraîner une perte de puissance du moteur, voir le calage du moteur si l'alimentation en air de ce dernier devient insuffisante.  Other solutions include providing closure of the air intake on the front face when rising water, as described in JP2010-121594A1. However, closing the air intake means a reduction in the incoming air flow, which can cause a loss of engine power, see the engine stall if the air supply of the latter becomes insufficient.
L'invention vise à pallier ces inconvénients en proposant un système de prise d'air en face avant du véhicule qui évite l'introduction d'eau ou de neige dans le moteur sans limiter le débit d'air entrant et qui peut être positionné sur tout type d'architecture véhicule. A cet effet, l'objet de l'invention concerne un système de prise d'air pour l'alimentation en air d'un moteur thermique d'un véhicule, le système comprenant : The invention aims to overcome these disadvantages by providing an air intake system on the front of the vehicle that prevents the introduction of water or snow into the engine without limiting the flow of incoming air and which can be positioned on any type of vehicle architecture. For this purpose, the subject of the invention relates to an air intake system for supplying air to a heat engine of a vehicle, the system comprising:
- un orifice de prise d'air destiné à être positionné sur une face extérieure du véhicule, notamment une face avant du véhicule,  an air intake orifice intended to be positioned on an outer face of the vehicle, in particular a front face of the vehicle,
- un orifice d'admission moteur destiné à être relié à l'admission en air du moteur,  an engine intake opening intended to be connected to the engine air intake,
- un conduit reliant l'orifice de prise d'air à l'orifice d'admission moteur,  a duct connecting the intake orifice to the engine intake port,
le conduit comprenant un orifice d'évacuation, le conduit et l'orifice d'évacuation étant conformés pour permettre l'évacuation d'eau ou de neige introduits via l'orifice de prise d'air,  the duct comprising an evacuation orifice, the duct and the evacuation orifice being shaped to allow the evacuation of water or snow introduced via the intake orifice,
caractérisé en ce qu'il comprend un clapet de fermeture de l'orifice d'évacuation et des moyens d'articulation du clapet, le clapet et ses moyens d'articulation étant agencés pour que le clapet soit mobile entre une position fermée dans laquelle l'orifice d'évacuation est obturé et une position ouverte située à l'extérieur du conduit dans laquelle l'orifice d'évacuation est libre.  characterized in that it comprises a valve for closing the discharge orifice and valve articulation means, the valve and its hinge means being arranged so that the valve is movable between a closed position in which the valve the discharge orifice is closed and an open position located outside the duct in which the discharge orifice is free.
La section de passage du conduit est ainsi libre quelque soit la position du clapet, le débit d'air n'est donc pas réduit lorsque de l'eau ou de la neige doit être évacuée, contrairement à la solution présentée dans le document JP2010- 121594A1.  The conduit passage section is thus free whatever the position of the valve, the air flow is not reduced when water or snow must be removed, unlike the solution presented in JP2010- 121594A1.
L'agencement selon l'invention permet de maintenir fermé le clapet lorsque le véhicule est à l'arrêt et ainsi d'éviter l'aspiration d'air chaud provenant du moteur, l'air aspiré provenant de l'extérieur du véhicule.  The arrangement according to the invention makes it possible to keep the valve closed when the vehicle is stationary and thus to avoid the aspiration of hot air coming from the engine, the air sucked from outside the vehicle.
En outre, le clapet peut être maintenu ouvert en roulage du véhicule, afin de permettre l'évacuation de l'eau ou de la neige ayant pu pénétrer dans le conduit via l'orifice de prise d'air.  In addition, the valve can be kept open while driving the vehicle, to allow the evacuation of water or snow that may have entered the duct via the intake port.
Les moyens d'articulation sont par exemple conçus ou commandés afin de permettre la fermeture du clapet à l'arrêt du véhicule et son ouverture lors du roulage du véhicule. Des moyens élastiques de rappel, par exemple des ressorts, pourraient être envisagés pour maintenir le clapet fermé. Toutefois, de tels dispositifs sont sensibles à l'usure ou aux saletés et sont susceptibles de se bloquer à l'usage.  The hinge means are for example designed or controlled to allow the closure of the valve at the stop of the vehicle and its opening during the driving of the vehicle. Elastic return means, for example springs, could be envisaged to keep the valve closed. However, such devices are sensitive to wear or dirt and are likely to lock up with use.
Avantageusement, l'orifice d'évacuation est situé dans un plan sensiblement vertical et les moyens d'articulation comprennent un axe d'articulation du clapet situé le long d'un bord supérieur de l'orifice d'évacuation, le clapet étant conformé de manière à obturer l'orifice d'évacuation sous l'effet de son poids et à libérer l'orifice d'évacuation sous l'effet d'une pression exercée par un fluide entrant dans le conduit lors du roulage du véhicule. Le fluide considéré peut être le flux d'air circulant dans le conduit du fait du roulage du véhicule, ou bien de l'eau ou de la neige introduits dans le conduit lors du roulage du véhicule. Advantageously, the discharge orifice is located in a substantially vertical plane and the hinge means comprise an axis of articulation of the valve located along an upper edge of the orifice discharge, the valve being shaped so as to close the discharge orifice under the effect of its weight and to release the discharge orifice under the effect of a pressure exerted by a fluid entering the conduit when driving the vehicle. The fluid considered may be the flow of air flowing in the duct due to the rolling of the vehicle, or the water or snow introduced into the duct during the rolling of the vehicle.
Un tel agencement est particulièrement simple et économique à réaliser et ne nécessite aucun actionneur ou commande électronique, ni de moyens de rappel élastiques, ce qui rend le système fiable et peu coûteux.  Such an arrangement is particularly simple and economical to implement and requires no actuator or electronic control, or elastic return means, which makes the system reliable and inexpensive.
Avantageusement et de manière non limitative, le conduit s'étend sensiblement horizontalement entre l'orifice de prise d'air et l'orifice d'évacuation en position montée du système dans un véhicule, ce qui peut permettre de faciliter l'évacuation via l'orifice d'évacuation d'un fluide présent dans le conduit, tel que de l'eau ou de la neige.  Advantageously and in a nonlimiting manner, the duct extends substantially horizontally between the intake orifice and the discharge orifice in the mounted position of the system in a vehicle, which can facilitate evacuation via the orifice for discharging a fluid present in the conduit, such as water or snow.
Avantageusement et de manière non limitative, l'orifice d'admission moteur est plus haut que l'orifice d'évacuation et/ou l'orifice de prise d'air, ce qui peut permettre de réduire davantage les risques d'aspiration d'eau ou de neige dans le moteur via l'orifice d'admission moteur.  Advantageously and without limitation, the engine intake port is higher than the discharge orifice and / or the air intake orifice, which can further reduce the risk of aspiration of water or snow in the engine via the engine inlet.
Par exemple, l'orifice d'admission moteur peut être plus haut que l'orifice d'évacuation et/ ou l'orifice de prise d'air d'une distance d'au moins 30mm.  For example, the engine inlet port may be higher than the exhaust port and / or the air intake port at a distance of at least 30mm.
Avantageusement et de manière non limitative, la surface de l'orifice d'évacuation peut être supérieure à la surface de l'orifice de prise d'air, ce qui peut également permettre de réduire davantage les risques d'aspiration d'eau ou de neige dans le moteur via l'orifice d'admission moteur en permettant l'évacuation de quantités d'eau ou de neige importantes.  Advantageously and in a nonlimiting manner, the surface of the discharge orifice may be greater than the surface of the air intake orifice, which may also make it possible to further reduce the risk of suctioning water or snow in the engine via the engine intake port allowing the evacuation of large amounts of water or snow.
Avantageusement et de manière non limitative, le conduit et le clapet peuvent être réalisés d'une pièce en matière plastique et les moyens d'articulation comprendre une charnière formée par une zone de matière amincie entre un bord de l'orifice d'évacuation et le clapet. Ceci permet de réaliser de manière particulièrement simple et peu coûteuse le clapet et le conduit. L'orifice d'évacuation sera alors avantageusement placé dans un plan sensiblement vertical afin de permettre un maintien du clapet en position fermée sous l'effet de son propre poids. Advantageously and in a nonlimiting manner, the conduit and the valve can be made of a plastic part and the hinge means comprise a hinge formed by a zone of thinned material between an edge of the discharge orifice and the valve. This makes it possible to achieve the valve and the duct in a particularly simple and inexpensive manner. The discharge orifice will then advantageously be placed in a substantially vertical plane in order to allow the valve to remain in the closed position under the effect of its own weight.
On pourrait toutefois envisager la présence de moyens élastiques tels qu'un ou plusieurs ressorts, pour maintenir le clapet fermé, ces moyens élastiques étant tarés pour s'ouvrir sous la poussée d'eau ou de neige.  One could however consider the presence of elastic means such as one or more springs to maintain the closed valve, these resilient means being calibrated to open under the pressure of water or snow.
Avantageusement et de manière non limitative, le conduit peut comprendre un déflecteur positionné entre l'orifice d'évacuation et l'orifice d'admission d'air, ce qui peut permettre d'éviter que des gouttelettes d'eau parviennent jusqu'à l'orifice d'admission d'air. Ce déflecteur peut être intégré au conduit ou être rapporté. Il peut également être formé par une configuration adaptée du conduit.  Advantageously and in a nonlimiting manner, the duct may comprise a baffle positioned between the discharge orifice and the air intake orifice, which may make it possible to prevent water droplets from reaching the water outlet. air intake port. This deflector can be integrated in the conduit or be reported. It can also be formed by a suitable configuration of the conduit.
Un autre objet de l'invention est un véhicule automobile comprenant un système de prise d'air selon l'invention, dans lequel l'orifice de prise d'air débouche sur une face extérieure du véhicule, notamment une face avant du véhicule.  Another object of the invention is a motor vehicle comprising an air intake system according to the invention, wherein the air intake port opens on an outer face of the vehicle, in particular a front face of the vehicle.
Avantageusement et de manière non limitative, l'orifice d'évacuation débouche dans un compartiment du véhicule contenant le moteur.  Advantageously and in a non-limiting manner, the evacuation orifice opens into a compartment of the vehicle containing the engine.
Le système de prise d'air pourra être disposé dans le véhicule de sorte que le conduit du système de prise d'air s'étende sensiblement selon la direction longitudinale du véhicule.  The air intake system may be arranged in the vehicle so that the duct of the intake system extends substantially in the longitudinal direction of the vehicle.
Ce système de prise d'air peut en outre être fixé sur un élément de structure fixe du véhicule, par exemple la face avant technique.  This air intake system can also be fixed to a fixed structural element of the vehicle, for example the technical front.
L'invention est maintenant décrite en référence aux dessins annexés, non limitatifs, dans lesquels : The invention is now described with reference to the appended non-limiting drawings, in which:
la figure unique est une représentation schématique en coupe de la partie avant d'un véhicule équipé d'un système de prise d'air selon un mode de réalisation de l'invention.  the single figure is a schematic sectional representation of the front portion of a vehicle equipped with an air intake system according to one embodiment of the invention.
Dans la présente description, les termes avant, arrière, font référence aux directions avant et arrière du véhicule, lorsque le système de prise d'air est monté sur le véhicule et les termes supérieur, inférieur, haut, bas, font référence à la direction verticale, en position monté du système sur le véhicule. Les axes X, Y, Z, correspondent respectivement à l'axe longitudinal (d'avant en arrière), transversal (vers la droite du véhicule) et vertical (vers le haut) du véhicule. Par direction/ plan sensiblement horizontal, longitudinal ou vertical, on entend une direction/un plan formant un angle de ±20°C avec une direction/un plan horizontal, longitudinal ou vertical. In the present description, the terms front, rear, refer to the front and rear directions of the vehicle, when the air intake system is mounted on the vehicle and the terms upper, lower, upper, lower, refer to the direction vertical, in the mounted position of the system on the vehicle. The X, Y, Z axes correspond respectively to the longitudinal axis (front to back), transverse (to the right of the vehicle) and vertical (upwards) of the vehicle. Direction / plane substantially horizontal, longitudinal or vertical means a direction / plane forming an angle of ± 20 ° C with a direction / a horizontal, longitudinal or vertical plane.
La figure unique représente schématiquement la partie avant 10 d'un véhicule et plus particulièrement le capot 12 du véhicule et sa face avant 14.  The single figure shows schematically the front portion 10 of a vehicle and more particularly the hood 12 of the vehicle and its front face 14.
Cette partie avant 10 de véhicule est équipée d'un système de prise d'air 20 pour l'alimentation en air du moteur thermique du véhicule.  This front part 10 of the vehicle is equipped with an air intake system 20 for supplying air to the engine of the vehicle.
Ce système de prise d'air 20 comprend :  This air intake system 20 comprises:
- un orifice de prise d'air 22 positionné sur une face extérieure 14 du véhicule, typiquement la face avant du véhicule,  an intake orifice 22 positioned on an outer face 14 of the vehicle, typically the front face of the vehicle,
- un orifice d'admission moteur 24 relié à un conduit 25 d'admission en air du moteur,  a motor inlet 24 connected to an air intake duct 25 of the engine,
- un conduit 26 reliant l'orifice de prise d'air 22 à l'orifice d'admission moteur 24.  a duct 26 connecting the air intake orifice 22 to the engine intake port 24.
On note que l'orifice de prise d'air 22 est positionné sur une face extérieure 14 recevant de l'air frais lorsque le véhicule avance. Le cas illustré s'intéresse à une prise d'air sur une face avant du véhicule. Toutefois, dans des variantes de réalisation non représentées de l'invention, l'orifice de prise d'air frais peut être situé à l'arrière du bouclier, et plus précisément entre le bouclier et le radiateur, ou encore dans une autre variante non illustrée sur les côtés de caisse du véhicule.  Note that the air intake port 22 is positioned on an outer face 14 receiving fresh air when the vehicle is moving forward. The illustrated case focuses on an air intake on a front of the vehicle. However, in non-illustrated embodiments of the invention, the fresh air intake port may be located at the rear of the shield, and more precisely between the shield and the radiator, or in another variant not illustrated on the body sides of the vehicle.
Le conduit 26 comprend un orifice d'évacuation 28 et un clapet 30 de fermeture de l'orifice d'évacuation 28.  The conduit 26 comprises a discharge orifice 28 and a valve 30 for closing the discharge orifice 28.
Le conduit 26 et l'orifice d'évacuation 28 sont conformés pour permettre l'évacuation d'eau ou de neige introduits via l'orifice de prise d'air 22.  The conduit 26 and the discharge orifice 28 are shaped to allow the evacuation of water or snow introduced via the air intake orifice 22.
Dans l'exemple représenté, l'orifice d'évacuation 30 débouche dans le compartiment moteur 16 du véhicule.  In the example shown, the discharge port 30 opens into the engine compartment 16 of the vehicle.
Le clapet 30 est relié au conduit 26 par des moyens d'articulation du clapet. Le clapet 30 et ses moyens d'articulation sont agencés pour que le clapet 30 soit mobile entre une position fermée dans laquelle l'orifice d'évacuation 28 est obturé et une position ouverte située à l'extérieur du conduit dans laquelle l'orifice d'évacuation 28 est libre.  The valve 30 is connected to the conduit 26 by hinge means of the valve. The valve 30 and its hinge means are arranged so that the valve 30 is movable between a closed position in which the discharge orifice 28 is closed and an open position located outside the conduit in which the orifice evacuation 28 is free.
Le clapet 30 est ainsi monté sur le conduit 26 de manière à s'ouvrir vers l'extérieur du conduit 26, de manière à ne pas obstruer la section interne du conduit 26 et de ne pas réduire ainsi le débit d'air acheminé vers le moteur. The valve 30 is thus mounted on the duct 26 so as to open towards the outside of the duct 26, so as not to obstruct the section internal conduit 26 and thus not reduce the flow of air to the motor.
Dans l'exemple représenté, l'orifice d'évacuation 28 est situé dans un plan sensiblement vertical et les moyens d'articulation comprennent un axe d'articulation 32 du clapet 30 situé sur un bord supérieur 29 de l'orifice d'évacuation 28.  In the example shown, the discharge orifice 28 is located in a substantially vertical plane and the hinge means comprise a hinge axis 32 of the valve 30 located on an upper edge 29 of the discharge orifice 28. .
Cet axe d'articulation 32 est par exemple formé par un film charnière entre le clapet 30 et le conduit 26 réalisés d'une seule et même pièce en matière plastique moulée.  This hinge pin 32 is for example formed by a hinge film between the valve 30 and the conduit 26 made of a single piece of molded plastic material.
Le clapet 30 est conformé de manière à obturer l'orifice d'évacuation 28 sous l'effet de son poids et à libérer l'orifice d'évacuation 28 sous l'effet de la pression d'un fluide entrant dans le conduit lors du roulage du véhicule, tel que le flux d'air circulant dans le conduit du fait du roulage du véhicule, ou bien l'eau ou la neige introduits dans le conduit lors du roulage du véhicule. L'ouverture /la fermeture du clapet 30 sont ainsi obtenus de manière automatique du fait du roulage ou de l'arrêt du véhicule. En outre, un tel agencement permet l'écoulement d'eau ou de neige via l'orifice d'évacuation 28 même lorsque le véhicule est à l'arrêt, ce qui permet de réduire le risque que le flux d'air entrant dans le moteur soit insuffisant pour le fonctionnement du moteur.  The valve 30 is shaped so as to close the discharge orifice 28 under the effect of its weight and to release the discharge orifice 28 under the effect of the pressure of a fluid entering the conduit during the running of the vehicle, such as the flow of air flowing in the duct due to the rolling of the vehicle, or the water or snow introduced into the duct during the driving of the vehicle. The opening / closing of the valve 30 is thus obtained automatically because of the rolling or stopping of the vehicle. In addition, such an arrangement allows the flow of water or snow via the discharge port 28 even when the vehicle is stopped, which reduces the risk that the air flow entering the engine is insufficient for the operation of the engine.
Le conduit 26 représenté s'étend sensiblement horizontalement entre l'orifice de prise d'air 22 et l'orifice d'évacuation 28 en position montée du système dans le véhicule.  The conduit 26 shown extends substantially horizontally between the air intake port 22 and the exhaust port 28 in the mounted position of the system in the vehicle.
Dans l'exemple représenté, ce conduit s'étend sensiblement suivant la direction longitudinale X du véhicule.  In the example shown, this duct extends substantially in the longitudinal direction X of the vehicle.
En outre, l'orifice d'admission moteur 24 est plus haut que l'orifice d'évacuation 28 et que l'orifice de prise d'air 22. L'orifice d'admission moteur 24 sera de préférence distant d'au moins 30 mm de l'orifice d'évacuation 28. Cette distance correspond à la distance entre les bords les plus inférieurs des deux orifices, tel que représenté sur la figure.  In addition, the engine intake port 24 is higher than the exhaust port 28 and the air intake port 22. The engine intake port 24 will preferably be at a distance of at least 30 mm from the discharge port 28. This distance corresponds to the distance between the lower edges of the two orifices, as shown in FIG.
Cet orifice d'admission moteur 24 est en outre situé sensiblement au dessus de l'orifice d'évacuation 28.  This engine intake opening 24 is furthermore situated substantially above the discharge orifice 28.
Dans l'exemple représenté, le conduit 26 comprend une partie sensiblement horizontale 26a entre l'orifice de prise d'air 22 et l'orifice d'évacuation 28 et une partie sensiblement verticale 26b entre l'orifice d'évacuation 28 et l'orifice d'admission moteur 24. Cette partie verticale 26b du conduit 26 peut présenter des dimensions internes plus importantes que celles de la partie horizontale 26a. Les dimensions et/ ou la forme du conduit 26 seront par exemple déterminées afin de limiter les pertes de charge entre l'orifice de prise d'air 22 et l'orifice d'admission moteur 24. Elles peuvent en outre dépendre de l'environnement du véhicule. In the example shown, the conduit 26 comprises a substantially horizontal portion 26a between the air intake orifice 22 and the discharge orifice 28 and a substantially vertical portion 26b between the discharge orifice 28 and the motor inlet 24. This vertical part 26b of the conduit 26 may have larger internal dimensions than those of the horizontal portion 26a. The dimensions and / or the shape of the duct 26 will, for example, be determined in order to limit the pressure drops between the air intake orifice 22 and the engine intake orifice 24. They may also depend on the environment of the vehicle.
La section transversale du conduit 26 peut être croissante de l'orifice de prise d'air 22 vers l'orifice d'évacuation 28, en particulier, la hauteur du conduit peut augmenter, le fond restant sensiblement horizontal, tel que représenté dans l'exemple. Ceci peut permettre de faciliter le passage d'air vers l'orifice d'admission moteur 24 lorsque de la neige ou de l'eau encombrent le conduit 26.  The cross section of the duct 26 may be increasing from the air intake orifice 22 to the discharge orifice 28, in particular the height of the duct may increase, the bottom remaining substantially horizontal, as shown in FIG. example. This may facilitate the passage of air to the engine intake port 24 when snow or water is clogging the conduit 26.
La surface de l'orifice d'évacuation 28 est de préférence supérieure à la surface de l'orifice de prise d'air 22 afin de faciliter l'évacuation de quantités importantes d'eau ou de neige.  The surface of the discharge port 28 is preferably larger than the surface of the air intake port 22 to facilitate the evacuation of large amounts of water or snow.
Le conduit 26 comprend un déflecteur 34 positionné entre l'orifice d'évacuation 28 et l'orifice d'admission d'air 24, afin de dévier les gouttelettes d'eau ou des particules de neige et d'éviter qu'elles ne parviennent jusqu'à l'orifice d'admission d'air 24.  The duct 26 comprises a deflector 34 positioned between the discharge orifice 28 and the air intake orifice 24, in order to deflect the water droplets or particles of snow and to prevent them from reaching to the air inlet 24.
La position du déflecteur 34 dépendra de la forme du conduit 26. The position of the deflector 34 will depend on the shape of the conduit 26.
En outre le déflecteur peut être constitué par le conduit 26 lui-même, dont la forme interne peut être conformée pour jouer le rôle de déflecteur. Dans l'exemple, ce déflecteur 34 s'étend sensiblement horizontalement et est relié au conduit 26 entre la partie horizontale 26a du conduit 26 et sa partie verticale 26b, séparant ainsi ces deux parties. Le déflecteur 34 représenté est situé sensiblement en regard de l'articulation 32 du clapet 30 et présente une forme légèrement incurvée donc la concavité est dirigée vers le haut. In addition the deflector may be constituted by the conduit 26 itself, whose internal shape may be shaped to play the role of deflector. In the example, this deflector 34 extends substantially horizontally and is connected to the conduit 26 between the horizontal portion 26a of the conduit 26 and its vertical portion 26b, thus separating these two parts. The deflector 34 shown is located substantially opposite the hinge 32 of the valve 30 and has a slightly curved shape so the concavity is directed upwards.
Ce déflecteur 34 peut être intégré au conduit 26 ou être rapporté. Il peut également être formé par une configuration adaptée du conduit.  This deflector 34 may be integrated in the conduit 26 or be reported. It can also be formed by a suitable configuration of the conduit.
Le système de prise d'air 20 décrit peut être fixé sur un élément de structure fixe du véhicule, par exemple la face avant technique (non représentée).  The air intake system 20 described can be attached to a fixed structural element of the vehicle, for example the front technical (not shown).
Son fonctionnement est le suivant. Lorsque le véhicule est à l'arrêt, le clapet 30 est maintenu dans la position fermée du fait de son propre poids et obture l'ouverture d'évacuation 28. Il peut éventuellement s'ouvrir sous une pression d'eau ou de neige, par exemple sous l'effet d'une quantité d'eau importante pénétrant par l'orifice de prise d'air 22 ou sous l'effet d'eau provenant de la fonte de neige présente dans le conduit 26. Its operation is as follows. When the vehicle is stationary, the valve 30 is kept in the closed position because of its own weight and closes the discharge opening 28. It may possibly open under a pressure of water or snow, for example under the effect a significant quantity of water entering through the air intake orifice 22 or under the effect of water coming from the melting snow present in the conduit 26.
Lorsque le véhicule se remet à rouler, l'aspiration de l'air pour l'alimentation du moteur provoque une dépression dans le conduit 26 qui maintient le clapet 30 fermé : l'air aspiré ne peut donc provenir du compartiment moteur du véhicule, et seul de l'air frais est envoyé à l'admission en air du moteur.  When the vehicle starts to roll again, the suction of the air for the supply of the motor causes a depression in the conduit 26 which keeps the valve 30 closed: the air sucked can not come from the engine compartment of the vehicle, and only fresh air is sent to the air intake of the engine.
Lorsque le véhicule est en roulage, l'air pénétrant par l'orifice de prise d'air 22 circule dans le conduit 26 jusqu'à l'orifice d'admission moteur 24. Sous la pression du flux d'air entrant, le clapet 30 s'ouvre légèrement de manière automatique, permettant ainsi l'évacuation permanente d'eau ou de neige ayant pénétré avec l'air dans le conduit 26. L'ouverture du clapet 30 peut être agrandie sous l'effet de la poussée d'une grande quantité d'eau ou de neige présente dans le conduit 26.  When the vehicle is running, the air entering through the air intake 22 circulates in the conduit 26 to the engine intake port 24. Under the pressure of the incoming air flow, the valve 30 opens slightly automatically, thus permitting the permanent evacuation of water or snow having entered the duct 26 with the air. The opening of the flap 30 can be enlarged under the effect of the thrust of a large amount of water or snow present in the conduit 26.

Claims

REVENDICATIONS
1. Système de prise d'air (20) pour l'alimentation en air d'un moteur thermique d'un véhicule, le système comprenant : An air intake system (20) for supplying air to a heat engine of a vehicle, the system comprising:
- un orifice de prise d'air (22) destiné à être positionné sur une face extérieure avant (14) du véhicule,  an air intake orifice (22) intended to be positioned on a front outer face (14) of the vehicle,
- un orifice d'admission moteur (24) destiné à être relié à l'admission en air du moteur,  an engine intake port (24) intended to be connected to the engine air intake,
- un conduit (26) reliant l'orifice de prise d'air (22) à l'orifice d'admission moteur (24),  a duct (26) connecting the air intake orifice (22) to the engine intake port (24),
le conduit (26) comprenant un orifice d'évacuation (28), le conduit the conduit (26) including an exhaust port (28), the conduit
(26) et l'orifice d'évacuation (28) étant conformés pour permettre l'évacuation d'eau ou de neige introduits via l'orifice de prise d'air (22), caractérisé en ce qu'il comprend un clapet (30) de fermeture de l'orifice d'évacuation (28) et des moyens d'articulation du clapet (30), le clapet (30) et ses moyens d'articulation étant agencés pour que le clapet(26) and the discharge orifice (28) being shaped to allow the evacuation of water or snow introduced via the intake orifice (22), characterized in that it comprises a valve ( 30) of closing of the discharge orifice (28) and of the hinge means of the valve (30), the valve (30) and its hinge means being arranged so that the valve
(30) soit mobile entre une position fermée dans laquelle l'orifice d'évacuation (28) est obturé et une position ouverte située à l'extérieur du conduit (26) dans laquelle l'orifice d'évacuation (28) est libre, l'orifice d'évacuation (28) étant situé dans un plan sensiblement vertical, les moyens d'articulation comprenant un axe d'articulation (32) du clapet situé le long d'un bord supérieur de l'orifice d'évacuation (28), le clapet (30) étant conformé de manière à obturer l'orifice d'évacuation (28) sous l'effet de son poids et à libérer l'orifice d'évacuation (28) sous l'effet d'une pression exercée par un fluide entrant dans le conduit (26) lors du roulage du véhicule, et en ce que le conduit (26) s'étend sensiblement horizontalement entre l'orifice de prise d'air (22) et l'orifice d'évacuation (28) en position montée du système dans un véhicule. (30) is movable between a closed position in which the discharge port (28) is closed and an open position located outside the conduit (26) in which the discharge port (28) is free, the discharge orifice (28) being located in a substantially vertical plane, the hinge means comprising a hinge axis (32) of the valve located along an upper edge of the discharge orifice (28). ), the valve (30) being shaped so as to close off the discharge orifice (28) under the effect of its weight and to release the discharge orifice (28) under the effect of a pressure exerted by a fluid entering the duct (26) during the running of the vehicle, and in that the duct (26) extends substantially horizontally between the intake orifice (22) and the discharge orifice ( 28) in the mounted position of the system in a vehicle.
2. Système de prise d'air (20) selon la revendication 1 , caractérisé en ce que l'orifice d'admission moteur (24) est plus haut que l'orifice d'évacuation (28) et/ou l'orifice de prise d'air (22) en position montée du système dans un véhicule.  An intake system (20) according to claim 1, characterized in that the engine inlet (24) is higher than the exhaust port (28) and / or the air intake (22) in the mounted position of the system in a vehicle.
3. Système de prise d'air (20) selon la revendication précédente, caractérisé en ce que l'orifice d'admission moteur (22) est plus haut que l'orifice d'évacuation (28) et/ou l'orifice de prise d'air (24) d'une distance d'au moins 30mm. 3. Air intake system (20) according to the preceding claim, characterized in that the engine inlet (22) is higher than the discharge orifice (28) and / or the orifice of air intake (24) with a distance of at least 30mm.
4. Système de prise d'air (20) selon l'une des revendications précédentes, caractérisé en ce que la surface de l'orifice d'évacuation (28) est supérieure à la surface de l'orifice de prise d'air (22). Air intake system (20) according to one of the preceding claims, characterized in that the surface of the outlet (28) is greater than the surface of the air intake ( 22).
5. Système de prise d'air (20) selon l'une des revendications précédentes, caractérisé en ce que le conduit (26) et le clapet (30) sont réalisés d'une pièce en matière plastique et en ce que les moyens d'articulation comprennent une charnière formée par une zone de matière amincie entre un bord de l'orifice d'évacuation (28) et le clapet (30).  5. Air intake system (20) according to one of the preceding claims, characterized in that the conduit (26) and the valve (30) are made of a plastic part and in that the means of articulation comprise a hinge formed by a zone of material thinned between an edge of the discharge orifice (28) and the valve (30).
6. Système de prise d'air (20) selon l'une des revendications précédentes, caractérisé en ce que le conduit (26) comprend un déflecteur (34) positionné entre l'orifice d'évacuation (28) et l'orifice d'admission d'air (24).  6. Air intake system (20) according to one of the preceding claims, characterized in that the conduit (26) comprises a deflector (34) positioned between the discharge orifice (28) and the orifice d air intake (24).
7. Véhicule automobile comprenant un système de prise d'air (20) selon l'une des revendications précédentes, dans lequel l'orifice de prise d'air (22) débouche sur une face extérieure (14) du véhicule, notamment une face avant du véhicule.  7. A motor vehicle comprising an air intake system (20) according to one of the preceding claims, wherein the air intake port (22) opens on an outer face (14) of the vehicle, in particular a face before the vehicle.
8. Véhicule selon la revendication précédente, caractérisé en ce que l'orifice d'évacuation (28) débouche dans un compartiment (16) du véhicule contenant le moteur.  8. Vehicle according to the preceding claim, characterized in that the discharge port (28) opens into a compartment (16) of the vehicle containing the engine.
PCT/EP2012/074646 2012-01-13 2012-12-06 Air intake system for supplying air to the heat engine of a vehicle WO2013104468A1 (en)

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FR1250350A FR2985784A1 (en) 2012-01-13 2012-01-13 AIR INTAKE SYSTEM FOR THE AIR SUPPLY OF A THERMAL MOTOR OF A VEHICLE
FR1250350 2012-01-13

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