WO2024089340A1 - Air duct for a motor vehicle front face, motor vehicle front face comprising such a module, and motor vehicle comprising such a front face - Google Patents

Air duct for a motor vehicle front face, motor vehicle front face comprising such a module, and motor vehicle comprising such a front face Download PDF

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Publication number
WO2024089340A1
WO2024089340A1 PCT/FR2023/051607 FR2023051607W WO2024089340A1 WO 2024089340 A1 WO2024089340 A1 WO 2024089340A1 FR 2023051607 W FR2023051607 W FR 2023051607W WO 2024089340 A1 WO2024089340 A1 WO 2024089340A1
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WO
WIPO (PCT)
Prior art keywords
air duct
front face
motor vehicle
air
air inlet
Prior art date
Application number
PCT/FR2023/051607
Other languages
French (fr)
Inventor
Eric Lemaitre
Claude Riviere
David Deshaies
Original Assignee
Stellantis Auto 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 Stellantis Auto Sas filed Critical Stellantis Auto Sas
Publication of WO2024089340A1 publication Critical patent/WO2024089340A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection

Definitions

  • TITLE Air duct for the front of a motor vehicle, front of a motor vehicle comprising such a module and motor vehicle comprising such a front.
  • the invention relates to the field of motor vehicles and more particularly concerns an air duct for the front of a motor vehicle.
  • the invention also relates to a front face of a motor vehicle comprising such an air duct and a motor vehicle comprising such a front face.
  • the front face of the motor vehicle comprises, among other things, a front bumper and, behind the front bumper, a controlled air inlet module, frequently designated by the acronym " MEAP.”
  • the aim of the MEAP is to improve the aerodynamics of the motor vehicle and, when the motor vehicle is an electric motor vehicle, to increase its autonomy.
  • the MEAP typically comprises a controlled air inlet cassette designed to prohibit, limit or authorize a flow of air passing through the MEAP.
  • the controlled air inlet cassette typically comprises a frame, delimiting one or more air inlets, a set of flaps, movable between a closed position and an open position of said air inlets, and actuators of said shutters.
  • the front face of the motor vehicle may also include, behind the MEAP, an air duct routing the air from the air inlet of the cassette to a motor-fan unit, frequently designated by the acronym “GMV”, also called “cooling facade”.
  • GMV motor-fan unit
  • the MEAP regulates the air supply to the GMV.
  • the air duct typically comprises a front part made of flexible material and a rear part made of rigid material.
  • the front part made of flexible material aims to allow sealing and a good fit between the controlled air inlet cassette and the rear part of the air duct, made of rigid material.
  • a so-called “repairability” shock consisting of projecting the motor vehicle onto a barrier oriented at 10° at a speed of approximately 16km/h is carried out.
  • the vehicle obtains a classification according to the RCAR system (Anglo-Saxon acronym for “Research Council for Automobile Repairs”).
  • the vehicle successfully passes the “repairability” shock when, at the end of the shock, certain parts of the vehicle are not impacted, in particular the motor-fan unit.
  • the controlled air inlet cassette can be mounted behind a grille on the front of the vehicle. It is located in a rear area of the front of the vehicle and is fixed on a repairability beam of the vehicle, a beam extending transversely relative to the motor vehicle and mounted substantially opposite the longitudinal structural beams, also called "stretches ".
  • a new architecture for the front of a motor vehicle proposes arranging the controlled air inlet cassette in the lower part of the front of the motor vehicle, that is to say below the repairability beam. of the vehicle relative to the vertical axis of the motor vehicle.
  • the controlled air inlet cassette is mounted directly behind a lower grille of the front bumper. It is fixed in a front area of the front of the motor vehicle, directly on the front bumper skin.
  • the bottom of the front bumper of a motor vehicle is generally more advanced, along a longitudinal axis of the motor vehicle, than the remainder of the skin of the front bumper.
  • the front face of the vehicle in particular the front bumper, the air inlet cassette and the air duct, forming a set of successive layers relative to the longitudinal direction of the motor vehicle, moves backwards along the longitudinal axis of the vehicle.
  • the thickness of the frame of the air inlet cassette and the rigid part of the air duct limits the compression of the assembly formed by the air inlet cassette and by the duct. air, then creating an incompressible hard point whose impact against the group motor fan leads to damage to the motor fan unit, or even its breakage.
  • a solution consisting of making the air duct entirely in flexible material would not be satisfactory because the duct would not retain sufficient functional rigidity.
  • the present invention aims to overcome the aforementioned drawbacks, and to do so relates to an air duct for the front of a motor vehicle, intended to be fixed behind a controlled air inlet module of said face. front and in front of a motor-fan group of said front face, said air duct being designed to route the air entering said controlled air inlet module towards said motor-fan group and comprising a flexible part , intended to be in contact with a controlled air inlet cassette of said controlled air inlet module, and a rigid part, behind said flexible part, said air duct being remarkable in that said rigid part comprises a reinforced stop piece arranged in said air duct so as to open opposite a lower transverse crosspiece of said front face when said air duct is mounted in said front face.
  • the air inlet cassette of the MEAP and the flexible part of the air duct move back longitudinally relative to the motor vehicle , and compress.
  • the reinforced stop piece abutting against the lower transverse crosspiece, then limits the recoil of the air duct.
  • the MEAP continues to crash against the air duct until it ruptures the air duct, which reduces the incompressible volume of the assembly formed by the MEAP and the air duct.
  • the air duct obtained thanks to the present invention very advantageously makes it possible to improve the classification according to the RCAR system of the motor vehicle which is equipped with it. [0026] Also, thanks to the present invention, oversizing of the structural elements of the vehicle, in particular the deformable boxes, is avoided, a solution which would negatively impact the price/mass ratio.
  • said reinforced stop piece extends under a lower edge of said rigid part of said air duct
  • said reinforced stop piece comprises a stop plate extending along said lower edge of said rigid part of said air duct;
  • said stop plate extends substantially over the entire length of said lower edge of said rigid part of said air duct;
  • said reinforced stop piece comprises at least one stiffening rib arranged longitudinally relative to said front face when said air duct is mounted in said front face of said motor vehicle;
  • said reinforced stop piece comprises several stiffening ribs, in particular five stiffening ribs;
  • said at least one stiffening rib extends from a front edge of said rigid part of said air duct to said stop plate of said air duct.
  • the invention also relates to a front face of a motor vehicle, comprising:
  • a controlled air inlet module designed to regulate the air flow passing through it and fixed on a rear part of said front bumper, comprising a controlled air inlet cassette,
  • an air duct arranged to route the air entering said controlled air inlet module towards said motor-fan unit, said front face being remarkable in that said air duct is obtained according to the invention , in that said reinforced stop piece is arranged opposite said lower transverse crosspiece and in that a predetermined distance longitudinally separates said reinforced stop piece from said lower transverse crosspiece.
  • said stop plate extends substantially parallel to said lower transverse crosspiece.
  • the invention also relates to a motor vehicle comprising a front face, remarkable in that said front face is obtained according to the invention.
  • FIG. 1 is a front isometric view of a front face of a motor vehicle according to the invention.
  • FIG. 2 is a longitudinal section of the front face according to the invention.
  • FIG. 3 is an isometric view from below of the air duct according to the invention.
  • FIG. 4 is a side view of the air duct according to the invention.
  • FIG. 5 shows the behavior of the front face during a first stage of a “repairability” shock applied to the motor vehicle.
  • FIG. 6 shows the behavior of the front face during a second stage of a “repairability” shock applied to the motor vehicle.
  • FIG. 7 shows the behavior of the front face during a third stage of a “repairability” shock applied to the motor vehicle.
  • FIG. 8 shows the behavior of the front face during a fourth stage of a “repairability” shock applied to the motor vehicle.
  • FIG. 9 shows the behavior of the front face during a fifth stage of a “repairability” shock applied to the motor vehicle.
  • FIG. 10 shows the behavior of the front face during a sixth stage of a “repairability” shock applied to the motor vehicle.
  • FIGS. 1 and 2 showing a front face 1 of a motor vehicle according to the invention, respectively in front isometric view and in longitudinal section.
  • the front face 1 admits a longitudinal median plane of symmetry.
  • the description made for the left part of the front face 1 applies by analogy to the right part of the front face 1, and vice versa.
  • the front face 1 of the motor vehicle comprises a set of structural elements 3.
  • the set of structural elements 3 comprises longitudinal lower beams, commonly called “extensions” and positioned parallel on either side of the powertrain (not shown in the figures).
  • the front ends of the lower longitudinal beams are extended forward by deformable boxes in the event of impact (not shown), commonly called “crash-boxes” or “sacrificial” boxes, and configured to be compressed in the event of impact of the motor vehicle so as to absorb the forces.
  • the lower front beam 7 is mounted below a repairable beam 8 (not shown in Figure 1), or upper front beam, extending transversely relative to the motor vehicle and being mounted substantially opposite each other. longitudinal structural beams or “stretches”. In other words, the lower front beam 7 is mounted under the repairability beam 8 relative to a vertical axis of the motor vehicle.
  • each of the deformable boxes and each of the corresponding lower longitudinal beams is a facade support (not shown), extending vertically relative to the vehicle and serving in particular to support the front face 1 of the motor vehicle .
  • the front ends of the lower longitudinal beams are fixed to these facade supports.
  • transverse crossmembers intended to take up the transverse forces which may occur in particular in the event of an impact of the vehicle, each being fixed on the supports facade present on one side and the other of the motor vehicle.
  • transverse crossmembers include in particular a lower transverse crossmember 5 and an upper transverse crossmember (not shown) with reference to their respective locations relative to the front face 1 of the vehicle.
  • the front face 1 further comprises a front bumper 10 (not shown in Figure 1) and, behind the front bumper 10, a controlled air inlet module 9 (designated by the acronym “MEAP”).
  • a front bumper 10 not shown in Figure 1
  • MEAP controlled air inlet module 9
  • the MEAP 9 is mounted behind a lower air inlet grille made on the front bumper 10.
  • the MEAP 9 is arranged in the lower part of the front bumper. More particularly, the MEAP 7 is arranged under the repairability beam 8 of the front face 1.
  • the MEAP 9 is fixed to a rear part of the front bumper, for example by screwing.
  • the MEAP 9 is designed to regulate the air flow passing through it.
  • the MEAP 9 includes a controlled air inlet cassette 11 designed to prohibit, limit or authorize the flow of air which passes through the MEAP 9.
  • the MEAP 9 comprises a single controlled air inlet cassette 11.
  • cassettes 11 can equip the MEAP 9.
  • two cassettes 11 can equip the MEAP 9, for example arranged in tiers one above the other in the vertical direction of the motor vehicle .
  • the controlled air inlet cassette 11 comprises a frame 13, delimiting at least one air inlet.
  • the controlled air inlet cassette 11 has two air inlets.
  • a distinct number of air inlets can equip the MEAP 9.
  • a single air inlet can equip the MEAP 9.
  • more than two air inlets can equip the MEAP 9 .
  • the controlled air inlet cassette 11 further comprises a set of flaps 15, movable between a closing position of the air inlet, position shown in Figure 1, and an opening position of the air inlet (position not shown in the figures).
  • the controlled air inlet cassette 11 further comprises a set of actuators (not shown) of the flaps 15, the activation of which ensures the passage from one to the other of the opening positions and closing the shutters 15.
  • the front face 1 further comprises a motor-fan group 17, frequently designated by the acronym “GMV”, also called “cooling facade”.
  • GMV motor-fan group 17
  • the GMV 17 comprises an upper part, fixed to the upper transverse crosspiece (not shown) and to the lower transverse crosspiece (not shown), for example by means of fixing studs.
  • the GMV 17 comprises an upper part 19, for example fixed on the upper transverse crosspiece (not shown), and a lower part 21, for example fixed on the lower transverse crosspiece 5, for example by means of support studs. fixing 22.
  • the GMV 17 is arranged in the front face 1 of the motor vehicle behind the lower front beam 7.
  • the front face 1 of the motor vehicle can also include, behind the MEAP 9, an air duct 23 arranged in the front face 1 to convey the fresh air entering the MEAP 9 towards the GMV 17.
  • the MEAP 9 regulates the air supply to the GMV 17.
  • the air duct 23 comprises in its front part a flexible part 25 made of a flexible material, for example a flexible plastic, in contact with the controlled air inlet cassette 11.
  • the flexible part 25 of the duct air 23 can for example be made of “EPDM” type rubber, an acronym for “ethylene-propylene-diene monomer”.
  • the air duct 23 also includes in its rear part a rigid part 27 in contact with the flexible part 25 of the air duct 23.
  • the rigid part 27 of the air duct 23 can for example be made of a rigid material, for example a rigid plastic.
  • the flexible part 25 aims to ensure a good fit between the controlled air inlet cassette 11 and the rigid part 27 of the air duct 23, so as to guarantee good sealing at the air inlets. of the controlled air inlet cassette 11.
  • the flexible part 25 extends opposite the rear of the corresponding air inlet, in continuity with the corresponding air inlet.
  • the air duct 23 has as many flexible parts 25 as there are air inlets.
  • the rigid part 27 makes it possible to give the air duct 23 sufficient functional rigidity.
  • the rigid part 27 of the air duct 23 includes a reinforced stop piece 29.
  • the reinforced stop piece 29 is arranged in the air duct 23 so that, when the air duct 23 is mounted in the front face 1, the reinforced stop piece 29 opens into a screw -vis the lower transverse crosspiece 5 of the front face 1, on which the lower part 21 of the GMV 17 is fixed.
  • the reinforced stop piece 29 extends under a lower edge 31 of the rigid part 27 of the air duct 23.
  • the reinforced stopping part 29 comprises for example a stopping plate 33 at its rear part, which extends along the lower edge 31 of the rigid part 27 of the conduit 23.
  • the stop plate 33 extends substantially perpendicular relative to the lower edge 31 of the rigid part 27 of the conduit 23.
  • the stop plate 33 extends transversely relative to the front face 1.
  • the stop plate 33 extends substantially parallel to the lower transverse crosspiece 5.
  • the stop plate 33 extends over the entire length of the lower edge 31 of the rigid part 27 of the air duct 23.
  • the stop plate 33 extends over only part of the length of the lower edge 31 of the rigid part 27 of the air duct 23.
  • the reinforced stop part 29 can for example be obtained by a plastic injection molding process, known to those skilled in the art.
  • the reinforced stopping piece 29 is stiffened longitudinally relative to the front face 1, that is to say that the reinforced stopping piece 29 comprises a means of stiffening in the longitudinal direction of the motor vehicle equipped with the front panel 1.
  • the longitudinal reinforcement of the reinforced stop piece 29 is for example obtained thanks to a set of stiffening ribs 35 arranged longitudinally relative to the front face 1, conferring rigidity to the reinforced stop piece 29.
  • the reinforced stop piece 29 has five stiffening ribs 35.
  • stiffening ribs 35 can equip the air duct 23.
  • the reinforced stop piece 29 can include a lower number or a higher number of stiffening ribs 35.
  • the stiffening ribs 35 extend from a front edge 37 of the rigid part 27 of the air duct 23 to the plate stop 33 of the air duct 23.
  • stiffening ribs 35 extend perpendicular to the stop plate 33.
  • a predetermined distance D longitudinally separates the reinforced stop piece 29 from the lower transverse crosspiece 5.
  • the distance D is determined so that the reinforced stop piece 29 abuts against the lower transverse crosspiece 5 under the application of a substantially longitudinal force applied to the front face 1, which force being by example applied when the vehicle is subjected to a “repairability” shock.
  • the distance D can be modified as desired by adjusting the longitudinal positioning of the stop plate 33 in particular as a function of the capacity that the GMV 17 has to move along the longitudinal axis, as a function of the compressibility potential of the flexible 25 and rigid 27 part of the air duct 23, for example linked to the proportions of flexible material/rigid material.
  • Figure 5 illustrates the state of the front face 1 at the time of impact due to shock.
  • the reinforced stop piece 29 limits the recoil of the air duct 23, which continues to collapse, while the GMV 17 no longer recoils, as shown in Figure 8 showing the state of the front face 1 after a duration equal to 50 milliseconds after impact has elapsed.
  • the production of the air duct 23 very advantageously makes it possible to improve the classification according to the RCAR system of the motor vehicle which is equipped with it.
  • the reinforced stop piece 29, present at the level of the rigid part 27 of the air duct 23, allows better compression of the flexible part 25 of the air duct 23 and ensures compression of the rigid part 27 of the air duct 23.
  • the reinforced stop piece 29 therefore makes it possible to avoid excessive support of the assembly formed by the MEAP 9 and by the air duct 23 on the GMV 17, which ultimately makes it possible to protect the GMV 17.
  • the air duct 23 obtained according to the invention has very little impact on the general mass of the front face 1.
  • the present invention is adaptable to any motor vehicle comprising an air duct and a lower transverse crossmember.
  • the present invention is simple to develop by varying, for example, the longitudinal position of the stop plate 33 or by modifying the geometry of the reinforced stop part 29, for example its thickness or the number of stiffening ribs 35.
  • the motor vehicle in which the front face 1 is mounted can for example be a motor vehicle with an electric motor.
  • the present invention is not limited solely to the embodiments of this air duct for the front face of a motor vehicle, of this front face comprising such an air duct and of this motor vehicle. comprising such a front face, described above only by way of illustrative examples, but on the contrary it embraces all the variants involving the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention .

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

Abstract

The invention relates to an air duct (23) for a motor vehicle front face, said air duct (23) being intended to be attached behind a controlled air inlet module and in front of a motor-fan unit (17), being designed to guide the air entering the controlled air inlet module to the motor-fan unit, and comprising a flexible portion (25) and a rigid portion (27) behind the flexible portion (25). According to the invention, the rigid portion (27) includes a reinforced stop piece (29) that is arranged so as to end opposite a lower transverse beam (5) of the front face when the air duct (23) is mounted in the front face. The invention also relates to a front face comprising such an air duct and to a motor vehicle comprising such a front face.

Description

DESCRIPTION DESCRIPTION
TITRE : Conduit d’air pour face avant de véhicule automobile, face avant de véhicule automobile comportant un tel module et véhicule automobile comportant une telle face avant TITLE: Air duct for the front of a motor vehicle, front of a motor vehicle comprising such a module and motor vehicle comprising such a front.
[Domaine technique] [Technical area]
[0001] La présente invention revendique la priorité de la demande française 2211138 déposée le 26 octobre 2022, dont le contenu (texte, dessins et revendications) est ici incorporé par référence. [0001] The present invention claims priority from French application 2211138 filed on October 26, 2022, the content of which (text, drawings and claims) is here incorporated by reference.
[0002] L'invention a trait au domaine des véhicules automobiles et concerne plus particulièrement un conduit d’air pour face avant de véhicule automobile. L’invention concerne aussi une face avant de véhicule automobile comportant un tel conduit d’air et un véhicule automobile comportant une telle face avant. [0002] The invention relates to the field of motor vehicles and more particularly concerns an air duct for the front of a motor vehicle. The invention also relates to a front face of a motor vehicle comprising such an air duct and a motor vehicle comprising such a front face.
[Etat de la technique antérieure] [State of the prior art]
[0003] De façon connue, la face avant du véhicule automobile comporte, entre autres, un pare-chocs avant et, en arrière du pare-chocs avant, un module d’entrée d’air piloté, fréquemment désigné par l’acronyme « MEAP ». [0003] In known manner, the front face of the motor vehicle comprises, among other things, a front bumper and, behind the front bumper, a controlled air inlet module, frequently designated by the acronym " MEAP.”
[0004] Le MEAP a pour but d’améliorer l’aérodynamisme du véhicule automobile et, lorsque le véhicule automobile est un véhicule automobile électrique, pour augmenter son autonomie. [0004] The aim of the MEAP is to improve the aerodynamics of the motor vehicle and, when the motor vehicle is an electric motor vehicle, to increase its autonomy.
[0005] Le MEAP comporte typiquement une cassette d’entrée d’air pilotée conçue pour interdire, limiter ou autoriser un flux d’air traversant le MEAP. La cassette d’entrée d’air pilotée comporte typiquement un cadre, délimitant une ou plusieurs entrée(s) d’air, un ensemble de volets, mobiles entre une position de fermeture et une position d’ouverture desdites entrées d’air, et des actionneurs desdits volets. [0005] The MEAP typically comprises a controlled air inlet cassette designed to prohibit, limit or authorize a flow of air passing through the MEAP. The controlled air inlet cassette typically comprises a frame, delimiting one or more air inlets, a set of flaps, movable between a closed position and an open position of said air inlets, and actuators of said shutters.
[0006] La face avant du véhicule automobile peut par ailleurs comporter, en arrière du MEAP, un conduit d’air acheminant l’air depuis l’entrée d’air de la cassette vers un groupe moto-ventilateur, fréquemment désigné par l’acronyme « GMV », encore appelé « façade de refroidissement ». Ainsi, le MEAP régule l’arrivée d’air vers le GMV. [0006] The front face of the motor vehicle may also include, behind the MEAP, an air duct routing the air from the air inlet of the cassette to a motor-fan unit, frequently designated by the acronym “GMV”, also called “cooling facade”. Thus, the MEAP regulates the air supply to the GMV.
[0007] Le conduit d’air comporte typiquement une partie avant en matériau souple et une partie arrière en matériau rigide. La partie avant en matériau souple vise à permettre l’étanchéité et un bon placage entre la cassette d’entrée d’air pilotée et la partie arrière du conduit d’air, en matériau rigide. [0008] Parmi la pluralité de tests utilisés pour l’homologation des véhicules automobiles, un choc dit « réparabilité » consistant à projeter le véhicule automobile sur une barrière orienté à 10° à une vitesse de 16km/h environ est pratiqué. [0007] The air duct typically comprises a front part made of flexible material and a rear part made of rigid material. The front part made of flexible material aims to allow sealing and a good fit between the controlled air inlet cassette and the rear part of the air duct, made of rigid material. [0008] Among the plurality of tests used for the approval of motor vehicles, a so-called “repairability” shock consisting of projecting the motor vehicle onto a barrier oriented at 10° at a speed of approximately 16km/h is carried out.
[0009] A l’issue de ce test, le véhicule obtient un classement selon le système RCAR (acronyme anglo-saxon de « Research Council for Automobile Repairs »). [0009] At the end of this test, the vehicle obtains a classification according to the RCAR system (Anglo-Saxon acronym for “Research Council for Automobile Repairs”).
[0010] Le véhicule passe avec succès le choc « réparabilité » lorsque, en fin de choc, certaines pièces du véhicule ne sont pas impactées, en particulier le groupe moto- ventilateur. [0010] The vehicle successfully passes the “repairability” shock when, at the end of the shock, certain parts of the vehicle are not impacted, in particular the motor-fan unit.
[0011] Selon une réalisation connue de l’art antérieur, notamment du document FR 3 120 022, la cassette d’entrée d’air pilotée peut être montée en arrière d’une grille de calandre de face avant du véhicule. Elle se trouve dans une zone arrière de la face avant du véhicule et est fixée sur une poutre réparabilité du véhicule, poutre s’étendant transversalement relativement au véhicule automobile et montée sensiblement en vis-à-vis des poutres structurelles longitudinales, aussi appelées « brancards ». [0011] According to an embodiment known from the prior art, in particular from document FR 3 120 022, the controlled air inlet cassette can be mounted behind a grille on the front of the vehicle. It is located in a rear area of the front of the vehicle and is fixed on a repairability beam of the vehicle, a beam extending transversely relative to the motor vehicle and mounted substantially opposite the longitudinal structural beams, also called "stretches ".
[0012] Une nouvelle architecture de face avant de véhicule automobile propose cependant d’agencer la cassette d’entrée d’air pilotée en partie inférieure de la face avant du véhicule automobile, c’est-à-dire en dessous de la poutre réparabilité du véhicule relativement à l’axe vertical du véhicule automobile. [0012] A new architecture for the front of a motor vehicle, however, proposes arranging the controlled air inlet cassette in the lower part of the front of the motor vehicle, that is to say below the repairability beam. of the vehicle relative to the vertical axis of the motor vehicle.
[0013] Dans une telle réalisation, la cassette d’entrée d’air pilotée est montée directement en arrière d’une grille inférieure du pare-chocs avant. Elle est fixée dans une zone avant de la face avant du véhicule automobile, directement sur la peau de pare-chocs avant. [0013] In such an embodiment, the controlled air inlet cassette is mounted directly behind a lower grille of the front bumper. It is fixed in a front area of the front of the motor vehicle, directly on the front bumper skin.
[0014] Pour des raisons réglementaires, le bas du pare-chocs avant de véhicule automobile est généralement plus avancé, selon un axe longitudinal du véhicule automobile, que le restant de la peau du pare-chocs avant. [0014] For regulatory reasons, the bottom of the front bumper of a motor vehicle is generally more advanced, along a longitudinal axis of the motor vehicle, than the remainder of the skin of the front bumper.
[0015] Ainsi, lors d’un choc réparabilité, la face avant du véhicule, en particulier le pare- chocs avant, la cassette d’entrée d’air et le conduit d’air, formant un ensemble de couches successives relativement à la direction longitudinale du véhicule automobile, recule le long de l’axe longitudinal du véhicule. [0015] Thus, during a repairable impact, the front face of the vehicle, in particular the front bumper, the air inlet cassette and the air duct, forming a set of successive layers relative to the longitudinal direction of the motor vehicle, moves backwards along the longitudinal axis of the vehicle.
[0016] Plus particulièrement, lors du choc réparabilité, la cassette d’entrée d’air et le conduit d’air, en arrière de la cassette d’entrée d’air, sont comprimés. [0016] More particularly, during the repairable shock, the air inlet cassette and the air duct, behind the air inlet cassette, are compressed.
[0017] Toutefois, l’épaisseur du cadre de la cassette d’entrée d’air et la partie rigide du conduit d’air limite la compression de l’ensemble formé par la cassette d’entrée d’air et par le conduit d’air, créant alors un point dur incompressible dont l’impact contre le groupe moto-ventilateur entraîne un endommagement du groupe moto-ventilateur, voire sa rupture. Une solution consistant à réaliser le conduit d’air intégralement en matériau souple ne serait pas satisfaisante car le conduit ne conserverait pas une rigidité fonctionnelle suffisante. However, the thickness of the frame of the air inlet cassette and the rigid part of the air duct limits the compression of the assembly formed by the air inlet cassette and by the duct. air, then creating an incompressible hard point whose impact against the group motor fan leads to damage to the motor fan unit, or even its breakage. A solution consisting of making the air duct entirely in flexible material would not be satisfactory because the duct would not retain sufficient functional rigidity.
[0018] Un tel endommagement impacte négativement le classement du véhicule automobile selon le système RCAR. [0018] Such damage negatively impacts the classification of the motor vehicle according to the RCAR system.
[0019] Aussi, en cas d’endommagement ou de rupture du groupe moto-ventilateur du véhicule automobile, le coût de réparation du véhicule est extrêmement élevé. [0019] Also, in the event of damage or breakage of the motor vehicle fan unit, the cost of repairing the vehicle is extremely high.
[Exposé de l’invention] [Disclosure of the invention]
[0020] La présente invention vise à surmonter les inconvénients précités, et concerne pour ce faire un conduit d’air pour face avant de véhicule automobile, destiné à être fixé en arrière d’un module d’entrée d’air pilotée de ladite face avant et en avant d’un groupe moto- ventilateur de ladite face avant, ledit conduit d’air étant conçu pour acheminer l’air entrant dans ledit module d’entrée d’air pilotée vers ledit groupe moto-ventilateur et comportant une partie souple, destinée à être au contact d’une cassette d’entrée d’air pilotée dudit module d’entrée d’air pilotée, et une partie rigide, en arrière de ladite partie souple, ledit conduit d’air étant remarquable en ce que ladite partie rigide comporte une pièce d’arrêt renforcée agencée dans ledit conduit d’air de façon à déboucher en vis-à-vis d’une traverse transversale inférieure de ladite face avant lorsque ledit conduit d’air est monté dans ladite face avant. [0020] The present invention aims to overcome the aforementioned drawbacks, and to do so relates to an air duct for the front of a motor vehicle, intended to be fixed behind a controlled air inlet module of said face. front and in front of a motor-fan group of said front face, said air duct being designed to route the air entering said controlled air inlet module towards said motor-fan group and comprising a flexible part , intended to be in contact with a controlled air inlet cassette of said controlled air inlet module, and a rigid part, behind said flexible part, said air duct being remarkable in that said rigid part comprises a reinforced stop piece arranged in said air duct so as to open opposite a lower transverse crosspiece of said front face when said air duct is mounted in said front face.
[0021] Lors d’un choc réparabilité auquel est soumis le véhicule automobile équipé d’un tel conduit d’air, la cassette d’entrée d’air du MEAP et la partie souple du conduit d’air reculent longitudinalement relativement au véhicule automobile, et se compriment. [0021] During a repairable shock to which the motor vehicle equipped with such an air duct is subjected, the air inlet cassette of the MEAP and the flexible part of the air duct move back longitudinally relative to the motor vehicle , and compress.
[0022] La pièce d’arrêt renforcée du conduit d’air arrive alors en butée contre la traverse transversale inférieure sur laquelle est fixé le groupe moto-ventilateur. [0022] The reinforced stopping piece of the air duct then abuts against the lower transverse crosspiece to which the motor-fan unit is fixed.
[0023] La pièce d’arrêt renforcée, en butée contre la traverse transversale inférieure, limite alors le recul du conduit d’air. Le MEAP continue de s’écraser sur le conduit d’air jusqu’à entraîner la rupture du conduit d’air, ce qui permet de réduire le volume incompressible de l’ensemble formé par le MEAP et le conduit d’air. The reinforced stop piece, abutting against the lower transverse crosspiece, then limits the recoil of the air duct. The MEAP continues to crash against the air duct until it ruptures the air duct, which reduces the incompressible volume of the assembly formed by the MEAP and the air duct.
[0024] En diminuant de la sorte le volume incompressible en avant du groupe moto- ventilateur, on réduit l’impact de l’ensemble formé par le MEAP et le conduit d’air sur le groupe moto-ventilateur et on évite sa rupture. [0024] By reducing the incompressible volume in front of the motor-fan group in this way, the impact of the assembly formed by the MEAP and the air duct on the motor-fan unit is reduced and its rupture is avoided.
[0025] Le conduit d’air obtenu grâce à la présente invention permet très avantageusement d’améliorer le classement selon le système RCAR du véhicule automobile qui en est équipé. [0026] Aussi, grâce à la présente invention, on évite un surdimensionnement des éléments structurels du véhicule, en particulier des caissons déformables, solution qui impacterait négativement le rapport prix/masse. The air duct obtained thanks to the present invention very advantageously makes it possible to improve the classification according to the RCAR system of the motor vehicle which is equipped with it. [0026] Also, thanks to the present invention, oversizing of the structural elements of the vehicle, in particular the deformable boxes, is avoided, a solution which would negatively impact the price/mass ratio.
[0027] Selon des caractéristiques optionnelles du conduit d’air : [0027] According to optional characteristics of the air duct:
- ladite pièce d’arrêt renforcée s’étend sous un bord inférieur de ladite partie rigide dudit conduit d’air ; - said reinforced stop piece extends under a lower edge of said rigid part of said air duct;
- ladite pièce d’arrêt renforcée comporte une plaque d’arrêt s’étendant le long dudit bord inférieur de ladite partie rigide dudit conduit d’air ; - said reinforced stop piece comprises a stop plate extending along said lower edge of said rigid part of said air duct;
- ladite plaque d’arrêt s’étend sensiblement sur toute la longueur dudit bord inférieur de ladite partie rigide dudit conduit d’air ; - said stop plate extends substantially over the entire length of said lower edge of said rigid part of said air duct;
- ladite pièce d’arrêt renforcée comporte au moins une nervure de rigidification agencée longitudinalement relativement à ladite face avant lorsque ledit conduit d’air est monté dans ladite face avant dudit véhicule automobile ; - said reinforced stop piece comprises at least one stiffening rib arranged longitudinally relative to said front face when said air duct is mounted in said front face of said motor vehicle;
- ladite pièce d’arrêt renforcée comporte plusieurs nervures de rigidification, en particulier cinq nervures de rigidification ; - said reinforced stop piece comprises several stiffening ribs, in particular five stiffening ribs;
- ladite au moins une nervure de rigidification s’étend depuis un bord avant de ladite partie rigide dudit conduit d’air jusqu’à ladite plaque d’arrêt dudit conduit d’air. - said at least one stiffening rib extends from a front edge of said rigid part of said air duct to said stop plate of said air duct.
[0028] L’invention concerne aussi une face avant de véhicule automobile, comprenant :[0028] The invention also relates to a front face of a motor vehicle, comprising:
- un pare-chocs avant, - a front bumper,
- un module d’entrée d’air pilotée, conçu pour réguler le flux d’air le traversant et fixé sur une partie arrière dudit pare-chocs avant, comportant une cassette d’entrée d’air pilotée,- a controlled air inlet module, designed to regulate the air flow passing through it and fixed on a rear part of said front bumper, comprising a controlled air inlet cassette,
- un groupe moto-ventilateur, - a motor-fan unit,
- une traverse transversale inférieure, s’étendant transversalement relativement à ladite face avant, sur laquelle est fixée une partie inférieure dudit groupe moto-ventilateur,- a lower transverse crosspiece, extending transversely relative to said front face, on which a lower part of said motor-fan unit is fixed,
- un conduit d’air, agencé pour acheminer l’air entrant dans ledit module d’entrée d’air pilotée vers ledit groupe moto-ventilateur, ladite face avant étant remarquable en ce que ledit conduit d’air est obtenu selon l’invention, en ce que ladite pièce d’arrêt renforcée est agencée en vis-à-vis de ladite traverse transversale inférieure et en ce qu’une distance prédéterminée sépare longitudinalement ladite pièce d’arrêt renforcée de ladite traverse transversale inférieure. - an air duct, arranged to route the air entering said controlled air inlet module towards said motor-fan unit, said front face being remarkable in that said air duct is obtained according to the invention , in that said reinforced stop piece is arranged opposite said lower transverse crosspiece and in that a predetermined distance longitudinally separates said reinforced stop piece from said lower transverse crosspiece.
[0029] Selon une caractéristique optionnelle de la face avant selon l’invention, ladite plaque d’arrêt s’étend sensiblement parallèlement à ladite traverse transversale inférieure. [0029] According to an optional characteristic of the front face according to the invention, said stop plate extends substantially parallel to said lower transverse crosspiece.
[0030] L’invention concerne aussi un véhicule automobile comportant une face avant, remarquable en ce que ladite face avant est obtenue selon l’invention. [Description des dessins] [0030] The invention also relates to a motor vehicle comprising a front face, remarkable in that said front face is obtained according to the invention. [Description of the designs]
[0031] D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : Other characteristics, aims and advantages of the invention will appear on reading the detailed description which follows, for an understanding of which reference will be made to the appended drawings in which:
[0032] [Fig. 1] est une vue isométrique avant d’une face avant d’un véhicule automobile selon l’invention. [0032] [Fig. 1] is a front isometric view of a front face of a motor vehicle according to the invention.
[0033] [Fig. 2] est une section longitudinale de la face avant selon l’invention. [0033] [Fig. 2] is a longitudinal section of the front face according to the invention.
[0034] [Fig. 3] est une vue isométrique de dessous du conduit d’air selon l’invention. [0034] [Fig. 3] is an isometric view from below of the air duct according to the invention.
[0035] [Fig. 4] est une vue de côté du conduit d’air selon l’invention. [0035] [Fig. 4] is a side view of the air duct according to the invention.
[0036] [Fig. 5] montre le comportement de la face avant lors d’une première étape d’un choc « réparabilité » appliqué au véhicule automobile. [0036] [Fig. 5] shows the behavior of the front face during a first stage of a “repairability” shock applied to the motor vehicle.
[0037] [Fig. 6] montre le comportement de la face avant lors d’une deuxième étape d’un choc « réparabilité » appliqué au véhicule automobile. [0037] [Fig. 6] shows the behavior of the front face during a second stage of a “repairability” shock applied to the motor vehicle.
[0038] [Fig. 7] montre le comportement de la face avant lors d’une troisième étape d’un choc « réparabilité » appliqué au véhicule automobile. [0038] [Fig. 7] shows the behavior of the front face during a third stage of a “repairability” shock applied to the motor vehicle.
[0039] [Fig. 8] montre le comportement de la face avant lors d’une quatrième étape d’un choc « réparabilité » appliqué au véhicule automobile. [0039] [Fig. 8] shows the behavior of the front face during a fourth stage of a “repairability” shock applied to the motor vehicle.
[0040] [Fig. 9] montre le comportement de la face avant lors d’une cinquième étape d’un choc « réparabilité » appliqué au véhicule automobile. [0040] [Fig. 9] shows the behavior of the front face during a fifth stage of a “repairability” shock applied to the motor vehicle.
[0041] [Fig. 10] montre le comportement de la face avant lors d’une sixième étape d’un choc « réparabilité » appliqué au véhicule automobile. [0041] [Fig. 10] shows the behavior of the front face during a sixth stage of a “repairability” shock applied to the motor vehicle.
[Description des modes de réalisation] [Description of embodiments]
[0042] Dans la suite de la description, des éléments présentant une structure identique ou des fonctions analogues sont désignés par une même référence. [0042] In the remainder of the description, elements having an identical structure or similar functions are designated by the same reference.
[0043] On adoptera par convention, à titre non limitatif, des orientations longitudinale, verticale et transversale indiquées par le trièdre direct (L, V, T) désignant les axes longitudinal, vertical et transversal du véhicule. [0043] We will adopt by convention, without limitation, longitudinal, vertical and transverse orientations indicated by the direct trihedron (L, V, T) designating the longitudinal, vertical and transverse axes of the vehicle.
[0044] Dans ce qui suit, les termes « avant », « arrière », « gauche », « droit », « inférieur » et « supérieur » s'entendent par rapport au véhicule. [0044] In the following, the terms “front”, “rear”, “left”, “right”, “lower” and “upper” are understood in relation to the vehicle.
[0045] On se réfère aux figures 1 et 2 montrant une face avant 1 d’un véhicule automobile selon l’invention, respectivement en vue isométrique avant et en section longitudinale. [0046] La face avant 1 admet un plan médian longitudinal de symétrie. Ainsi, la description faite pour la partie gauche de la face avant 1 s’applique par analogie à la partie droite de la face avant 1 , et inversement. Referring to Figures 1 and 2 showing a front face 1 of a motor vehicle according to the invention, respectively in front isometric view and in longitudinal section. The front face 1 admits a longitudinal median plane of symmetry. Thus, the description made for the left part of the front face 1 applies by analogy to the right part of the front face 1, and vice versa.
[0047] La face avant 1 du véhicule automobile comporte un ensemble d’éléments structurels 3. The front face 1 of the motor vehicle comprises a set of structural elements 3.
[0048] L’ensemble d’éléments structurels 3 comprend des poutres inférieures longitudinales, couramment appelées « allonges » et positionnées parallèlement de part et d'autre du groupe motopropulseur (non représentées aux figures). The set of structural elements 3 comprises longitudinal lower beams, commonly called “extensions” and positioned parallel on either side of the powertrain (not shown in the figures).
[0049] Ces poutres inférieures longitudinales ou allonges sont montées en-dessous, selon la direction verticale du véhicule automobile, de poutres structurelles longitudinales couramment appelées « brancards » (non représentées aux figures). [0049] These lower longitudinal beams or extensions are mounted below, in the vertical direction of the motor vehicle, longitudinal structural beams commonly called “stretches” (not shown in the figures).
[0050] Les extrémités avant des poutres inférieures longitudinales sont prolongées vers l’avant par des caissons déformables en cas de chocs (non représentés), couramment appelés « crash-boxes » ou « sacrificiels », et configurés pour être comprimés en cas de choc du véhicule automobile de manière à absorber les efforts. [0050] The front ends of the lower longitudinal beams are extended forward by deformable boxes in the event of impact (not shown), commonly called "crash-boxes" or "sacrificial" boxes, and configured to be compressed in the event of impact of the motor vehicle so as to absorb the forces.
[0051] A l’avant de ces caissons déformables se trouve une poutre avant inférieure 7 (non représentée à la figure 1 ), poutre s’étendant transversalement relativement au véhicule automobile et reliant entre eux les caissons déformables. [0051] At the front of these deformable boxes there is a lower front beam 7 (not shown in Figure 1), a beam extending transversely relative to the motor vehicle and connecting the deformable boxes together.
[0052] La poutre avant inférieure 7 est montée en dessous d’une poutre réparabilité 8 (non représentée à la figure 1 ), ou poutre avant supérieure, s’étendant transversalement relativement au véhicule automobile et étant montée sensiblement en vis-à-vis des poutres structurelles longitudinales ou « brancards ». En d’autres termes, la poutre avant inférieure 7 est montée sous la poutre réparabilité 8 relativement à un axe vertical du véhicule automobile. The lower front beam 7 is mounted below a repairable beam 8 (not shown in Figure 1), or upper front beam, extending transversely relative to the motor vehicle and being mounted substantially opposite each other. longitudinal structural beams or “stretches”. In other words, the lower front beam 7 is mounted under the repairability beam 8 relative to a vertical axis of the motor vehicle.
[0053] À la jonction de chacun des caissons déformables et de chacune des poutres inférieures longitudinales correspondantes se trouve un appui de façade (non représenté), s'étendant verticalement relativement au véhicule et servant notamment au soutien de la face avant 1 du véhicule automobile. Sur ces appuis de façade sont fixées les extrémités avant des poutres inférieures longitudinales. [0053] At the junction of each of the deformable boxes and each of the corresponding lower longitudinal beams is a facade support (not shown), extending vertically relative to the vehicle and serving in particular to support the front face 1 of the motor vehicle . The front ends of the lower longitudinal beams are fixed to these facade supports.
[0054] Les éléments structurels de la caisse de véhicule automobile sont par ailleurs pourvus, notamment, d’une pluralité de traverses transversales ayant pour but de reprendre les efforts transversaux pouvant survenir notamment en cas de choc du véhicule, chacune étant fixée sur les appuis façade présents d’un côté et de l’autre du véhicule automobile. [0055] Ces traverses transversales comprennent notamment une traverse transversale inférieure 5 et une traverse transversale supérieure (non représentée) en référence à leurs emplacements respectifs relativement à la face avant 1 du véhicule. [0054] The structural elements of the motor vehicle body are also provided, in particular, with a plurality of transverse crosspieces intended to take up the transverse forces which may occur in particular in the event of an impact of the vehicle, each being fixed on the supports facade present on one side and the other of the motor vehicle. [0055] These transverse crossmembers include in particular a lower transverse crossmember 5 and an upper transverse crossmember (not shown) with reference to their respective locations relative to the front face 1 of the vehicle.
[0056] La face avant 1 comporte en outre un pare-chocs avant 10 (non représenté à la figure 1) et, en arrière du pare-chocs avant 10, un module d’entrée d’air pilotée 9 (désigné par l’acronyme « MEAP »). The front face 1 further comprises a front bumper 10 (not shown in Figure 1) and, behind the front bumper 10, a controlled air inlet module 9 (designated by the acronym “MEAP”).
[0057] Le MEAP 9 est monté en arrière d’une grille inférieure d’entrée d’air pratiquée sur le pare-chocs avant 10. [0057] The MEAP 9 is mounted behind a lower air inlet grille made on the front bumper 10.
[0058] Le MEAP 9 est agencé en partie inférieure du pare-chocs avant. Plus particulièrement, le MEAP 7 est agencé sous la poutre réparabilité 8 de la face avant 1 . The MEAP 9 is arranged in the lower part of the front bumper. More particularly, the MEAP 7 is arranged under the repairability beam 8 of the front face 1.
[0059] Le MEAP 9 est fixé sur une partie arrière du pare-chocs avant, par exemple par vissage. [0059] The MEAP 9 is fixed to a rear part of the front bumper, for example by screwing.
[0060] Le MEAP 9 est conçu pour réguler le flux d’air le traversant. [0060] The MEAP 9 is designed to regulate the air flow passing through it.
[0061] A cet effet, le MEAP 9 comporte une cassette d’entrée d’air pilotée 11 conçue pour interdire, limiter ou autoriser le flux d’air qui traverse le MEAP 9. [0061] For this purpose, the MEAP 9 includes a controlled air inlet cassette 11 designed to prohibit, limit or authorize the flow of air which passes through the MEAP 9.
[0062] Dans l’exemple de réalisation du MEAP 9 illustré aux figures, le MEAP 9 comporte une seule cassette d’entrée d’air pilotée 11. [0062] In the exemplary embodiment of the MEAP 9 illustrated in the figures, the MEAP 9 comprises a single controlled air inlet cassette 11.
[0063] Toutefois, un nombre distinct de cassettes 11 peut équiper le MEAP 9. Par exemple, deux cassettes 11 peuvent équiper le MEAP 9, par exemple disposées étagées l’une au-dessus de l’autre selon la direction verticale du véhicule automobile. However, a distinct number of cassettes 11 can equip the MEAP 9. For example, two cassettes 11 can equip the MEAP 9, for example arranged in tiers one above the other in the vertical direction of the motor vehicle .
[0064] La cassette d’entrée d’air pilotée 11 comporte un cadre 13, délimitant au moins une entrée d’air. The controlled air inlet cassette 11 comprises a frame 13, delimiting at least one air inlet.
[0065] Dans l’exemple de réalisation du MEAP 9 illustré aux figures, la cassette d’entrée d’air pilotée 11 comporte deux entrées d’air. [0065] In the exemplary embodiment of the MEAP 9 illustrated in the figures, the controlled air inlet cassette 11 has two air inlets.
[0066] Toutefois, un nombre distinct d’entrées d’air peut équiper le MEAP 9. Par exemple, une entrée d’air unique peut équiper le MEAP 9. En variante, plus de deux entrées d’air peuvent équiper le MEAP 9. However, a distinct number of air inlets can equip the MEAP 9. For example, a single air inlet can equip the MEAP 9. Alternatively, more than two air inlets can equip the MEAP 9 .
[0067] La cassette d’entrée d’air pilotée 11 comporte en outre un ensemble de volets 15, mobiles entre une position de fermeture de l’entrée d’air, position représentée à la figure 1 , et une position d’ouverture de l’entrée d’air (position non représentée aux figures). [0068] La cassette d’entrée d’air pilotée 11 comporte en outre un ensemble d’actionneurs (non représentés) des volets 15, dont l’activation assure le passage de l’une à l’autre des positions d’ouverture et de fermeture des volets 15. [0067] The controlled air inlet cassette 11 further comprises a set of flaps 15, movable between a closing position of the air inlet, position shown in Figure 1, and an opening position of the air inlet (position not shown in the figures). [0068] The controlled air inlet cassette 11 further comprises a set of actuators (not shown) of the flaps 15, the activation of which ensures the passage from one to the other of the opening positions and closing the shutters 15.
[0069] La face avant 1 comporte en outre un groupe moto-ventilateur 17, fréquemment désigné par l’acronyme « GMV », encore appelé « façade de refroidissement ». The front face 1 further comprises a motor-fan group 17, frequently designated by the acronym “GMV”, also called “cooling facade”.
[0070] Le GMV 17 comporte une partie supérieure, fixée sur la traverse transversale supérieure (non représentée) et sur la traverse transversale inférieure (non représentée), par exemple par l’intermédiaire de plots de fixation. [0070] The GMV 17 comprises an upper part, fixed to the upper transverse crosspiece (not shown) and to the lower transverse crosspiece (not shown), for example by means of fixing studs.
[0071] Le GMV 17 comporte une partie supérieure 19, par exemple fixée sur la traverse transversale supérieure (non représentée), et une partie inférieure 21 , par exemple fixée sur la traverse transversale inférieure 5, par exemple par l’intermédiaire de plots de fixation 22. [0071] The GMV 17 comprises an upper part 19, for example fixed on the upper transverse crosspiece (not shown), and a lower part 21, for example fixed on the lower transverse crosspiece 5, for example by means of support studs. fixing 22.
[0072] Ainsi, le GMV 17 est agencé dans la face avant 1 du véhicule automobile en arrière de la poutre avant inférieure 7. [0072] Thus, the GMV 17 is arranged in the front face 1 of the motor vehicle behind the lower front beam 7.
[0073] La face avant 1 du véhicule automobile peut par ailleurs comporter, en arrière du MEAP 9, un conduit d’air 23 agencé dans la face avant 1 pour acheminer l’air frais entrant dans le MEAP 9 vers le GMV 17. Ainsi, le MEAP 9 régule l’arrivée d’air vers le GMV 17. [0073] The front face 1 of the motor vehicle can also include, behind the MEAP 9, an air duct 23 arranged in the front face 1 to convey the fresh air entering the MEAP 9 towards the GMV 17. Thus , the MEAP 9 regulates the air supply to the GMV 17.
[0074] Le conduit d’air 23 comporte en sa partie avant une partie souple 25 réalisée dans un matériau souple, par exemple un plastique souple, en contact avec la cassette d’entrée d’air pilotée 11. La partie souple 25 du conduit d’air 23 peut par exemple être réalisée en caoutchouc de type « EPDM », acronyme de « éthylène-propylène-diène monomère ». The air duct 23 comprises in its front part a flexible part 25 made of a flexible material, for example a flexible plastic, in contact with the controlled air inlet cassette 11. The flexible part 25 of the duct air 23 can for example be made of “EPDM” type rubber, an acronym for “ethylene-propylene-diene monomer”.
[0075] Le conduit d’air 23 comporte par ailleurs en sa partie arrière une partie rigide 27 en contact avec la partie souple 25 du conduit d’air 23. [0075] The air duct 23 also includes in its rear part a rigid part 27 in contact with the flexible part 25 of the air duct 23.
[0076] La partie rigide 27 du conduit d’air 23 peut par exemple être réalisée dans un matériau rigide, par exemple un plastique rigide. The rigid part 27 of the air duct 23 can for example be made of a rigid material, for example a rigid plastic.
[0077] La partie souple 25 vise à assurer un bon placage entre la cassette d’entrée d’air pilotée 11 et la partie rigide 27 du conduit d’air 23, de façon à garantir une bonne étanchéité au niveau des entrées d’air de la cassette d’entrée d’air pilotée 11. Ainsi, la partie souple 25 s’étend en vis-à-vis arrière de l’entrée d’air correspondante, dans la continuité de l’entrée d’air correspondante. Aussi, le conduit d’air 23 comporte autant de parties souples 25 qu’il y a d’entrées d’air. [0077] The flexible part 25 aims to ensure a good fit between the controlled air inlet cassette 11 and the rigid part 27 of the air duct 23, so as to guarantee good sealing at the air inlets. of the controlled air inlet cassette 11. Thus, the flexible part 25 extends opposite the rear of the corresponding air inlet, in continuity with the corresponding air inlet. Also, the air duct 23 has as many flexible parts 25 as there are air inlets.
[0078] La partie rigide 27 permet quant à elle de conférer au conduit d’air 23 une rigidité fonctionnelle suffisante. [0079] On se réfère aux figures 3 et 4 illustrant respectivement le conduit d’air 23 en vue isométrique de dessous et la face avant 1 selon l’invention, en vue de côté. [0078] The rigid part 27 makes it possible to give the air duct 23 sufficient functional rigidity. [0079] Referring to Figures 3 and 4 respectively illustrating the air duct 23 in isometric view from below and the front face 1 according to the invention, in side view.
[0080] Selon l’invention, la partie rigide 27 du conduit d’air 23 comporte une pièce d’arrêt renforcée 29. [0080] According to the invention, the rigid part 27 of the air duct 23 includes a reinforced stop piece 29.
[0081] La pièce d’arrêt renforcée 29 est agencée dans le conduit d’air 23 de façon à ce que, lorsque le conduit d’air 23 est monté dans la face avant 1 , la pièce d’arrêt renforcée 29 débouche en vis-à-vis de la traverse transversale inférieure 5 de la face avant 1 , sur laquelle est fixée la partie inférieure 21 du GMV 17. [0081] The reinforced stop piece 29 is arranged in the air duct 23 so that, when the air duct 23 is mounted in the front face 1, the reinforced stop piece 29 opens into a screw -vis the lower transverse crosspiece 5 of the front face 1, on which the lower part 21 of the GMV 17 is fixed.
[0082] A cet effet, selon l’exemple de réalisation du conduit d’air 23 illustré aux figures, la pièce d’arrêt renforcée 29 s’étend sous un bord inférieur 31 de la partie rigide 27 du conduit d’air 23. [0082] For this purpose, according to the embodiment of the air duct 23 illustrated in the figures, the reinforced stop piece 29 extends under a lower edge 31 of the rigid part 27 of the air duct 23.
[0083] La pièce d’arrêt renforcée 29 comporte par exemple une plaque d’arrêt 33 au niveau de sa partie arrière, qui s’étend le long du bord inférieur 31 de la partie rigide 27 du conduit 23. [0083] The reinforced stopping part 29 comprises for example a stopping plate 33 at its rear part, which extends along the lower edge 31 of the rigid part 27 of the conduit 23.
[0084] La plaque d’arrêt 33 s’étend sensiblement perpendiculairement relativement au bord inférieur 31 de la partie rigide 27 du conduit 23. [0084] The stop plate 33 extends substantially perpendicular relative to the lower edge 31 of the rigid part 27 of the conduit 23.
[0085] En d’autres termes, lorsque le conduit d’air 23 est monté dans la face avant 1 , la plaque d’arrêt 33 s’étend transversalement relativement à la face avant 1. [0085] In other words, when the air duct 23 is mounted in the front face 1, the stop plate 33 extends transversely relative to the front face 1.
[0086] Aussi, lorsque le conduit d’air 23 est monté dans la face avant 1 , la plaque d’arrêt 33 s’étend sensiblement parallèlement à la traverse transversale inférieure 5. [0086] Also, when the air duct 23 is mounted in the front face 1, the stop plate 33 extends substantially parallel to the lower transverse crosspiece 5.
[0087] La plaque d’arrêt 33 s’étend sur toute la longueur du bord inférieur 31 de la partie rigide 27 du conduit d’air 23. The stop plate 33 extends over the entire length of the lower edge 31 of the rigid part 27 of the air duct 23.
[0088] Toutefois, selon une variante de réalisation non représentée aux figures, la plaque d’arrêt 33 s’étend sur une partie seulement de la longueur du bord inférieur 31 de la partie rigide 27 du conduit d’air 23. However, according to an alternative embodiment not shown in the figures, the stop plate 33 extends over only part of the length of the lower edge 31 of the rigid part 27 of the air duct 23.
[0089] La pièce d’arrêt renforcée 29 peut par exemple être obtenue par un procédé de moulage par injection plastique, connu de l’homme du métier. [0089] The reinforced stop part 29 can for example be obtained by a plastic injection molding process, known to those skilled in the art.
[0090] La pièce d’arrêt renforcée 29 est rigidifiée longitudinalement relativement à la face avant 1 , c’est-à-dire que la pièce d’arrêt renforcée 29 comporte un moyen de rigidification dans le sens longitudinal du véhicule automobile équipé de la face avant 1 . [0091] A cet effet, le renfort longitudinal de la pièce d’arrêt renforcée 29 est par exemple obtenu grâce à un ensemble de nervures de rigidification 35 agencées longitudinalement relativement à la face avant 1 , conférant la rigidité à la pièce d’arrêt renforcée 29. [0090] The reinforced stopping piece 29 is stiffened longitudinally relative to the front face 1, that is to say that the reinforced stopping piece 29 comprises a means of stiffening in the longitudinal direction of the motor vehicle equipped with the front panel 1. [0091] For this purpose, the longitudinal reinforcement of the reinforced stop piece 29 is for example obtained thanks to a set of stiffening ribs 35 arranged longitudinally relative to the front face 1, conferring rigidity to the reinforced stop piece 29.
[0092] Dans l’exemple de réalisation du conduit d’air 23 donné aux figures, la pièce d’arrêt renforcée 29 comporte cinq nervures de rigidification 35. [0092] In the exemplary embodiment of the air duct 23 given in the figures, the reinforced stop piece 29 has five stiffening ribs 35.
[0093] Toutefois, un nombre distinct de nervures de rigidification 35 peut équiper le conduit d’air 23. Par exemple, la pièce d’arrêt renforcée 29 peut comporter un nombre inférieur ou un nombre supérieur de nervures de rigidification 35. [0093] However, a distinct number of stiffening ribs 35 can equip the air duct 23. For example, the reinforced stop piece 29 can include a lower number or a higher number of stiffening ribs 35.
[0094] Dans l’exemple de réalisation de la pièce d’arrêt renforcée 29 illustré aux figures, les nervures de rigidification 35 s’étendent depuis un bord avant 37 de la partie rigide 27 du conduit d’air 23 jusqu’à la plaque d’arrêt 33 du conduit d’air 23. [0094] In the exemplary embodiment of the reinforced stop piece 29 illustrated in the figures, the stiffening ribs 35 extend from a front edge 37 of the rigid part 27 of the air duct 23 to the plate stop 33 of the air duct 23.
[0095] Par exemple, les nervures de rigidification 35 s’étendent perpendiculairement à la plaque d’arrêt 33. [0095] For example, the stiffening ribs 35 extend perpendicular to the stop plate 33.
[0096] Selon une disposition de l’invention, une distance D prédéterminée sépare longitudinalement la pièce d’arrêt renforcée 29 de la traverse transversale inférieure 5. [0096] According to one arrangement of the invention, a predetermined distance D longitudinally separates the reinforced stop piece 29 from the lower transverse crosspiece 5.
[0097] La distance D est déterminée de façon à ce que la pièce d’arrêt renforcée 29 vienne en butée contre la traverse transversale inférieure 5 sous l’application d’une force sensiblement longitudinale appliquée à la face avant 1 , laquelle force étant par exemple appliquée lorsque le véhicule est soumis à un choc « réparabilité ». The distance D is determined so that the reinforced stop piece 29 abuts against the lower transverse crosspiece 5 under the application of a substantially longitudinal force applied to the front face 1, which force being by example applied when the vehicle is subjected to a “repairability” shock.
[0098] La distance D peut être modifiée à souhait en ajustant le positionnement longitudinal de la plaque d’arrêt 33 notamment en fonction de la capacité que le GMV 17 a à débattre selon l’axe longitudinal, en fonction du potentiel de compressibilité de la partie souple 25 et rigide 27 du conduit d’air 23, par exemple lié aux proportions matériau souple/matériau rigide. [0098] The distance D can be modified as desired by adjusting the longitudinal positioning of the stop plate 33 in particular as a function of the capacity that the GMV 17 has to move along the longitudinal axis, as a function of the compressibility potential of the flexible 25 and rigid 27 part of the air duct 23, for example linked to the proportions of flexible material/rigid material.
[0099] On se réfère aux figures 5 à 10 auxquelles est représentée la simulation chronologique de comportement de la face avant 1 lors d’un choc « réparabilité » appliqué au véhicule automobile. [0099] Referring to Figures 5 to 10, which shows the chronological simulation of the behavior of the front face 1 during a “repairability” shock applied to the motor vehicle.
[0100] La figure 5 illustre l’état de la face avant 1 au moment de l’impact dû au choc. [0100] Figure 5 illustrates the state of the front face 1 at the time of impact due to shock.
[0101] Le véhicule est projeté dans le cadre d’un choc « réparabilité » sur une barrière orienté à 10°, à une vitesse de 16km/h environ. L’impact a lieu dans l’exemple au niveau de la partie avant gauche du véhicule. [0102] La figure 6 illustre l’état de la face avant 1 après qu’une durée égale à 25 millisecondes se soit écoulée après l’impact. [0101] The vehicle is thrown as part of a “repairability” impact onto a barrier oriented at 10°, at a speed of approximately 16 km/h. In the example, the impact takes place at the front left part of the vehicle. [0102] Figure 6 illustrates the state of the front face 1 after a duration equal to 25 milliseconds has elapsed after the impact.
[0103] La cassette d’entrée d’air pilotée 11 du MEAP 9 et la partie souple 25 du conduit d’air 23 commencent à se comprimer. Le GMV 17 recule et la pièce d’arrêt renforcée 29 se rapproche de la traverse transversale inférieure 5. [0103] The controlled air inlet cassette 11 of the MEAP 9 and the flexible part 25 of the air duct 23 begin to compress. The GMV 17 moves back and the reinforced stop piece 29 approaches the lower transverse crossmember 5.
[0104] Comme visible à la figure 7 montrant l’état de la face avant 1 après qu’une durée égale à 35 millisecondes après l’impact se soit écoulée, le choc se poursuit et la partie souple 25 du conduit d’air 23 est totalement comprimé. La partie rigide 27 du conduit d’air 23 commence à se comprimer. La pièce d’arrêt renforcée 29 arrive alors en butée contre la traverse transversale inférieure 5. [0104] As visible in Figure 7 showing the state of the front face 1 after a duration equal to 35 milliseconds after the impact has elapsed, the impact continues and the flexible part 25 of the air duct 23 is completely compressed. The rigid part 27 of the air duct 23 begins to compress. The reinforced stop piece 29 then abuts against the lower transverse crosspiece 5.
[0105] La pièce d’arrêt renforcée 29 limite le recul du conduit d’air 23, qui continue de s’écraser, tandis que le GMV 17 ne recule plus, comme le montre la figure 8 montrant l’état de la face avant 1 après qu’une durée égale à 50 millisecondes après l’impact se soit écoulée. [0105] The reinforced stop piece 29 limits the recoil of the air duct 23, which continues to collapse, while the GMV 17 no longer recoils, as shown in Figure 8 showing the state of the front face 1 after a duration equal to 50 milliseconds after impact has elapsed.
[0106] Comme représenté à la figure 9 montrant l’état de la face avant 1 après l’écoulement d’une durée de 60 millisecondes après l’impact, le choc continue de se dérouler alors que le conduit d’air 23 est freiné dans son recul par la pièce d’arrêt renforcée 29 en butée contre la traverse transversale inférieure 5. Le MEAP 17 continue de s’écraser sur le conduit d’air 23 jusqu’à entraîner la rupture du conduit d’air 23. Le GMV 17 ne recule pas selon l’axe longitudinal. [0106] As shown in Figure 9 showing the state of the front face 1 after the passage of a duration of 60 milliseconds after the impact, the impact continues to take place while the air duct 23 is braked in its recoil by the reinforced stop piece 29 abutting against the lower transverse crosspiece 5. The MEAP 17 continues to crash on the air duct 23 until it causes the air duct 23 to rupture. The GMV 17 does not move back along the longitudinal axis.
[0107] On réduit alors le volume incompressible de l’ensemble formé par la cassette d’entrée d’air pilotée 11 du MEAP 9 et par le conduit d’air 23, ce qui permet avantageusement de réduire l’impact dudit ensemble sur le GMV 17. [0107] The incompressible volume of the assembly formed by the controlled air inlet cassette 11 of the MEAP 9 and by the air duct 23 is then reduced, which advantageously makes it possible to reduce the impact of said assembly on the GMV 17.
[0108] Ainsi, comme visible à la figure 10 montrant l’état de la face avant 1 après qu’une durée égale à 70 millisecondes après l’impact se soit écoulée, on constate que la partie inférieure du conduit d’air 23 a atteint son écrasement maximal et qu’il n’y a pas de rupture du GMV 17. [0108] Thus, as visible in Figure 10 showing the state of the front face 1 after a duration equal to 70 milliseconds after the impact has elapsed, we see that the lower part of the air duct 23 has reaches its maximum crushing and there is no rupture of GMV 17.
[0109] Ainsi, grâce à la présente invention, la réalisation du conduit d’air 23 permet très avantageusement d’améliorer le classement selon le système RCAR du véhicule automobile qui en est équipé. [0109] Thus, thanks to the present invention, the production of the air duct 23 very advantageously makes it possible to improve the classification according to the RCAR system of the motor vehicle which is equipped with it.
[0110] Grâce à la présente invention, la pièce d’arrêt renforcée 29, présente au niveau de la partie rigide 27 du conduit d’air 23, permet une meilleure compression de la partie souple 25 du conduit d’air 23 et assure une compression de la partie rigide 27 du conduit d’air 23. [0111] La pièce d’arrêt renforcée 29 permet donc d’éviter un appui excessif de l’ensemble formé par le MEAP 9 et par le conduit d’air 23 sur le GMV 17, ce qui permet, in fine, de protéger le GMV 17. [0110] Thanks to the present invention, the reinforced stop piece 29, present at the level of the rigid part 27 of the air duct 23, allows better compression of the flexible part 25 of the air duct 23 and ensures compression of the rigid part 27 of the air duct 23. [0111] The reinforced stop piece 29 therefore makes it possible to avoid excessive support of the assembly formed by the MEAP 9 and by the air duct 23 on the GMV 17, which ultimately makes it possible to protect the GMV 17.
[0112] Aussi, grâce à la présente invention, on évite un surdimensionnement des éléments structurels du véhicule, en particulier des caissons déformables, solution qui impacterait négativement le rapport prix/masse. [0112] Also, thanks to the present invention, oversizing of the structural elements of the vehicle, in particular the deformable boxes, is avoided, a solution which would negatively impact the price/mass ratio.
[0113] Par ailleurs, en prévoyant de réaliser la pièce d’arrêt renforcée 29 en matériau plastique, le conduit d’air 23 obtenu selon l’invention impacte très peu la masse générale de la face avant 1 . [0113] Furthermore, by planning to make the reinforced stop piece 29 in plastic material, the air duct 23 obtained according to the invention has very little impact on the general mass of the front face 1.
[0114] La présente invention est adaptable à n’importe quel véhicule automobile comportant un conduit d’air et une traverse transversale inférieure. [0114] The present invention is adaptable to any motor vehicle comprising an air duct and a lower transverse crossmember.
[0115] Aussi, la présente invention est simple à mettre au point en faisant varier, par exemple, la position longitudinale de la plaque d’arrêt 33 ou en modifiant la géométrie de la pièce d’arrêt renforcée 29, par exemple son épaisseur ou le nombre de nervures de rigidification 35. [0115] Also, the present invention is simple to develop by varying, for example, the longitudinal position of the stop plate 33 or by modifying the geometry of the reinforced stop part 29, for example its thickness or the number of stiffening ribs 35.
[0116] Le véhicule automobile dans lequel est monté la face avant 1 peut par exemple être un véhicule automobile à moteur électrique. [0116] The motor vehicle in which the front face 1 is mounted can for example be a motor vehicle with an electric motor.
[0117] Comme il va de soi, la présente invention ne se limite pas aux seules formes de réalisation de ce conduit d’air pour face avant de véhicule automobile, de cette face avant comportant un tel conduit d’air et de ce véhicule automobile comportant une telle face avant, décrites ci-dessus uniquement à titre d'exemples illustratifs, mais elle embrasse au contraire toutes les variantes faisant intervenir les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l’invention. [0117] As it goes without saying, the present invention is not limited solely to the embodiments of this air duct for the front face of a motor vehicle, of this front face comprising such an air duct and of this motor vehicle. comprising such a front face, described above only by way of illustrative examples, but on the contrary it embraces all the variants involving the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention .

Claims

REVENDICATIONS [Revendication 1] Conduit d’air (23) pour face avant (1 ) de véhicule automobile, destiné à être fixé en arrière d’un module d’entrée d’air pilotée (9) de ladite face avant (1 ) et en avant d’un groupe moto-ventilateur (17) de ladite face avant (1 ), ledit conduit d’air (23) étant conçu pour acheminer l’air entrant dans ledit module d’entrée d’air pilotée (9) vers ledit groupe moto-ventilateur (17) et comportant une partie souple (25), destinée à être au contact d’une cassette d’entrée d’air pilotée dudit module d’entrée d’air pilotée (9), et une partie rigide (27), en arrière de ladite partie souple (25), ledit conduit d’air (23) étant caractérisé en ce que ladite partie rigide (27) comporte une pièce d’arrêt renforcée (29) agencée dans ledit conduit d’air (23) de façon à déboucher en vis-à-vis d’une traverse transversale inférieure (5) de ladite face avant (1 ) lorsque ledit conduit d’air (23) est monté dans ladite face avant CLAIMS [Claim 1] Air duct (23) for front face (1) of a motor vehicle, intended to be fixed behind a controlled air inlet module (9) of said front face (1) and in front of a motor-fan group (17) of said front face (1), said air duct (23) being designed to route the air entering said controlled air inlet module (9) towards said motor-fan group (17) and comprising a flexible part (25), intended to be in contact with a controlled air inlet cassette of said controlled air inlet module (9), and a rigid part (27), behind said flexible part (25), said air duct (23) being characterized in that said rigid part (27) comprises a reinforced stop piece (29) arranged in said air duct (23) so as to open opposite a lower transverse crosspiece (5) of said front face (1) when said air duct (23) is mounted in said front face
(1)-(1)-
[Revendication 2] Conduit d’air (23) selon la revendication 1 , caractérisé en ce que ladite pièce d’arrêt renforcée (29) s’étend sous un bord inférieur (31 ) de ladite partie rigide (27) dudit conduit d’air (23). [Claim 2] Air duct (23) according to claim 1, characterized in that said reinforced stop piece (29) extends under a lower edge (31) of said rigid part (27) of said duct air (23).
[Revendication 3] Conduit d’air (23) selon la revendication 2, caractérisé en ce que ladite pièce d’arrêt renforcée (29) comporte une plaque d’arrêt (33) s’étendant le long dudit bord inférieur (31 ) de ladite partie rigide (27) dudit conduit d’air (23). [Claim 3] Air duct (23) according to claim 2, characterized in that said reinforced stop piece (29) comprises a stop plate (33) extending along said lower edge (31) of said rigid part (27) of said air duct (23).
[Revendication 4] Conduit d’air (23) selon la revendication 3, caractérisé en ce que ladite plaque d’arrêt (33) s’étend sensiblement sur toute la longueur dudit bord inférieur (31 ) de ladite partie rigide (27) dudit conduit d’air (23). [Claim 4] Air duct (23) according to claim 3, characterized in that said stop plate (33) extends substantially over the entire length of said lower edge (31) of said rigid part (27) of said air duct (23).
[Revendication 5] Conduit d’air (23) selon l’une quelconque des revendications 1 à 4, caractérisé en ce que ladite pièce d’arrêt renforcée (29) comporte au moins une nervure de rigidification (35) agencée longitudinalement relativement à ladite face avant (1 ) lorsque ledit conduit d’air (23) est monté dans ladite face avant (1 ) dudit véhicule automobile. [Claim 5] Air duct (23) according to any one of claims 1 to 4, characterized in that said reinforced stop piece (29) comprises at least one stiffening rib (35) arranged longitudinally relative to said front face (1) when said air duct (23) is mounted in said front face (1) of said motor vehicle.
[Revendication 6] Conduit d’air (23) selon la revendication 5, caractérisé en ce que ladite pièce d’arrêt renforcée (29) comporte plusieurs nervures de rigidification (35), en particulier cinq nervures de rigidification (35). [Claim 6] Air duct (23) according to claim 5, characterized in that said reinforced stop piece (29) comprises several stiffening ribs (35), in particular five stiffening ribs (35).
[Revendication 7] Conduit d’air (23) selon l’une des revendications 5 ou 6 combinée à l’une des revendications 3 ou 4, caractérisé en ce que ladite au moins une nervure de rigidification (35) s’étend depuis un bord avant (37) de ladite partie rigide (27) dudit conduit d’air (23) jusqu’à ladite plaque d’arrêt (33) dudit conduit d’air (23). [Claim 7] Air conduit (23) according to one of claims 5 or 6 combined with one of claims 3 or 4, characterized in that said at least one stiffening rib (35) extends from a front edge (37) of said rigid part (27) of said air duct (23) to said stop plate (33) of said air duct (23).
[Revendication 8] Face avant (1 ) de véhicule automobile, comprenant : [Claim 8] Front face (1) of a motor vehicle, comprising:
- un pare-chocs avant (10), - a front bumper (10),
- un module d’entrée d’air pilotée (9), conçu pour réguler le flux d’air le traversant et fixé sur une partie arrière dudit pare-chocs avant (10), comportant une cassette d’entrée d’air pilotée (11 ), - a controlled air inlet module (9), designed to regulate the air flow passing through it and fixed on a rear part of said front bumper (10), comprising a controlled air inlet cassette ( 11),
- un groupe moto-ventilateur (17), - a motor-fan group (17),
- une traverse transversale inférieure (5), s’étendant transversalement relativement à ladite face avant (1 ), sur laquelle est fixée une partie inférieure (21 ) dudit groupe moto-ventilateur (17), - a lower transverse crosspiece (5), extending transversely relative to said front face (1), on which is fixed a lower part (21) of said motor-fan group (17),
- un conduit d’air (23), agencé pour acheminer l’air entrant dans ledit module d’entrée d’air pilotée (9) vers ledit groupe moto-ventilateur (17), ladite face avant (1 ) étant caractérisée en ce que ledit conduit d’air (23) est obtenu selon l’une quelconque des revendications 1 à 7, en ce que ladite pièce d’arrêt renforcée (29) est agencée en vis-à-vis de ladite traverse transversale inférieure (5) et en ce qu’une distance prédéterminée (D) sépare longitudinalement ladite pièce d’arrêt renforcée (29) de ladite traverse transversale inférieure (5). - an air duct (23), arranged to route the air entering said controlled air inlet module (9) towards said motor-fan group (17), said front face (1) being characterized in that that said air duct (23) is obtained according to any one of claims 1 to 7, in that said reinforced stop piece (29) is arranged opposite said lower transverse crosspiece (5) and in that a predetermined distance (D) longitudinally separates said reinforced stop piece (29) from said lower transverse crosspiece (5).
[Revendication 9] Face avant (1 ) selon la revendication 8, dans laquelle ledit conduit d’air (23) est obtenu selon l’une des revendications 3 ou 4, caractérisée en ce que ladite plaque d’arrêt (33) s’étend sensiblement parallèlement à ladite traverse transversale inférieure (5). [Claim 9] Front face (1) according to claim 8, in which said air duct (23) is obtained according to one of claims 3 or 4, characterized in that said stop plate (33) is extends substantially parallel to said lower transverse crosspiece (5).
[Revendication 10] Véhicule automobile comportant une face avant (1 ), caractérisé en ce que ladite face avant (1 ) est obtenue selon l’une des revendications 8 ou 9. [Claim 10] Motor vehicle comprising a front face (1), characterized in that said front face (1) is obtained according to one of claims 8 or 9.
PCT/FR2023/051607 2022-10-26 2023-10-16 Air duct for a motor vehicle front face, motor vehicle front face comprising such a module, and motor vehicle comprising such a front face WO2024089340A1 (en)

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FR2211138A FR3141414A1 (en) 2022-10-26 2022-10-26 Air duct for front face of a motor vehicle, front face of a motor vehicle comprising such a module and motor vehicle comprising such a front face
FRFR2211138 2022-10-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211138A5 (en) 1972-12-18 1974-07-12 Sony Corp
DE102013218563A1 (en) * 2012-09-28 2014-04-03 Fuji Jukogyo K.K. Mounting structure for adjustable air distributor
FR3013302A1 (en) * 2013-11-19 2015-05-22 Renault Sa MONOPIECE AIR GUIDE FOR FRONT PANEL OF MOTOR VEHICLE AND VEHICLE THUS EQUIPPED
EP3168118A1 (en) * 2015-11-09 2017-05-17 Aisin Seiki Kabushiki Kaisha Radiator support member
FR3120022A1 (en) 2021-02-22 2022-08-26 Psa Automobiles Sa Piloted air inlet module with shock absorption zone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211138A5 (en) 1972-12-18 1974-07-12 Sony Corp
DE102013218563A1 (en) * 2012-09-28 2014-04-03 Fuji Jukogyo K.K. Mounting structure for adjustable air distributor
FR3013302A1 (en) * 2013-11-19 2015-05-22 Renault Sa MONOPIECE AIR GUIDE FOR FRONT PANEL OF MOTOR VEHICLE AND VEHICLE THUS EQUIPPED
EP3168118A1 (en) * 2015-11-09 2017-05-17 Aisin Seiki Kabushiki Kaisha Radiator support member
FR3120022A1 (en) 2021-02-22 2022-08-26 Psa Automobiles Sa Piloted air inlet module with shock absorption zone

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