FR2920705A3 - Exhaust gas outlet device assembly for motor vehicle i.e. sport vehicle, has lower wall comprising horizontal front portion and upwardly raised rear end portion to form air diffuser, which generates depression under floor pan of vehicle - Google Patents
Exhaust gas outlet device assembly for motor vehicle i.e. sport vehicle, has lower wall comprising horizontal front portion and upwardly raised rear end portion to form air diffuser, which generates depression under floor pan of vehicle Download PDFInfo
- Publication number
- FR2920705A3 FR2920705A3 FR0757388A FR0757388A FR2920705A3 FR 2920705 A3 FR2920705 A3 FR 2920705A3 FR 0757388 A FR0757388 A FR 0757388A FR 0757388 A FR0757388 A FR 0757388A FR 2920705 A3 FR2920705 A3 FR 2920705A3
- Authority
- FR
- France
- Prior art keywords
- vehicle
- exhaust gas
- gas outlet
- shield
- outlet device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/02—Streamlining the undersurfaces
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- 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
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
Description
AGENCEMENT D'UN DISPOSITIF DE SORTIE DE GAZ D'ECHAPPEMENT POUR VEHICULE AUTOMOBILE L'invention concerne un agencement d'un dispositif de sortie de gaz d'échappement à l'arrière d'un véhicule automobile, ledit véhicule 5 comportant un bouclier. The invention relates to an arrangement of an exhaust gas outlet device at the rear of a motor vehicle, said vehicle 5 having a shield.
Certains véhicules, tels que des véhicules sportifs, par exemple, comportent des dispositifs aérodynamiques tels que des diffuseurs d'air situés sous une partie arrière du véhicule. Un diffuseur d'air permet de générer une dépression sous le plancher du véhicule de io façon à diminuer la portance arrière du véhicule, c'est-à-dire le soulèvement de l'arrière dudit véhicule par les forces aérodynamiques, en particulier à grande vitesse. Some vehicles, such as sports vehicles, for example, have aerodynamic devices such as air diffusers located under a rear part of the vehicle. An air diffuser can generate a depression under the floor of the vehicle so as to reduce the rear lift of the vehicle, that is to say the lifting of the rear of said vehicle by the aerodynamic forces, particularly large speed.
Cependant un tel diffuseur d'air est souvent difficile à intégrer à l'arrière d'un véhicule automobile en raison de contraintes 15 d'architecture et d'encombrement, à cause de la présence d'éléments tels que des sorties de gaz d'échappement ou du bouclier arrière. However, such an air diffuser is often difficult to integrate into the rear of a motor vehicle because of architectural and space constraints, because of the presence of elements such as gas outlets. exhaust or rear bumper.
La publication FR-A-2890642 décrit un diffuseur d'air pour véhicule automobile agencé sous un bouclier arrière de véhicule automobile. 20 Le diffuseur d'air est fixé sur le bouclier et comporte des ouvertures latérales permettant le passage de sorties de gaz d'échappement. The publication FR-A-2890642 describes an air diffuser for a motor vehicle arranged under a rear bumper of a motor vehicle. The air diffuser is attached to the shield and has side openings for the passage of exhaust gas outlets.
Ainsi un tel dispositif présente des inconvénients : l'agencement de ce dispositif à l'arrière du véhicule est gêné par la présence des sorties de gaz d'échappement, ce qui nécessite d'adapter le diffuseur 25 d'air pour permettre le passage desdites sorties. Ce dispositif est donc complexe et nécessite de nombreuses pièces. Afin de pallier ces inconvénients, l'invention a pour objet un agencement d'un dispositif de sortie de gaz d'échappement permettant de façon simple l'intégration d'un diffuseur d'air. - 2 L'invention a aussi pour objet un agencement d'un dispositif de sortie de gaz d'échappement diminuant le nombre de pièces utilisées. A cet effet, l'invention propose un agencement d'un dispositif de sortie de gaz d'échappement du type cité ci-dessus, caractérisé en ce que ledit dispositif de sortie de gaz d'échappement, connecté à une ligne d'échappement et disposé sous le bouclier, comporte une paroi supérieure s'étendant le long du bouclier et une paroi inférieure, les deux parois étant reliées entre elles par au moins deux parois latérales de manière à définir au moins un orifice de sortie, et io ladite paroi inférieure comportant une première portion avant sensiblement horizontale et une portion arrière d'extrémité relevée vers le haut, de manière à former un diffuseur d'air. Thus, such a device has drawbacks: the arrangement of this device at the rear of the vehicle is impeded by the presence of the exhaust gas outlets, which requires adapting the air diffuser to allow the passage of said exits. This device is complex and requires many parts. In order to overcome these drawbacks, the object of the invention is an arrangement of an exhaust gas outlet device allowing a simple integration of an air diffuser. The invention also relates to an arrangement of an exhaust gas outlet device decreasing the number of parts used. For this purpose, the invention proposes an arrangement of an exhaust gas outlet device of the type mentioned above, characterized in that said exhaust gas outlet device, connected to an exhaust line and disposed beneath the shield, has an upper wall extending along the shield and a bottom wall, the two walls being interconnected by at least two sidewalls so as to define at least one outlet, and said bottom wall. having a first substantially horizontal front portion and an upstanding end rear portion to form an air diffuser.
Selon d'autres caractéristiques de l'invention: - Le dispositif de sortie de gaz d'échappement est disposé dans une 15 découpe ménagée en partie basse du bouclier, les extrémités des parois supérieure et inférieure se trouvant dans le prolongement de la surface du bouclier et la première portion arrière de la paroi inférieure se trouvant sensiblement dans le prolongement d'un bord inférieur du bouclier. 20 - La paroi supérieure et la paroi inférieure se rejoignent de manière à former deux orifices de sortie. - Le dispositif comporte des moyens de fixation sur le bouclier. -Le dispositif comporte des moyens de fixation à un élément de structure du véhicule.According to other features of the invention: the exhaust gas outlet device is disposed in a cutout formed in the lower part of the shield, the ends of the upper and lower walls being in the extension of the shield surface; and the first rear portion of the bottom wall being substantially in the extension of a lower edge of the shield. The upper wall and the lower wall meet to form two outlet orifices. - The device comprises fastening means on the shield. The device comprises means for fixing to a structural element of the vehicle.
25 D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description d'exemples de réalisation d'un agencement d'un dispositif de sortie de gaz d'échappement en référence aux dessins annexés dans lesquels : - La figure 1 est une vue arrière d'un véhicule comportant un 30 agencement d'un dispositif de sortie de gaz d'échappement selon l'invention. -3 - La figure 2 est une vue en coupe selon II-II d'un détail de l'arrière du véhicule de la figure 1. Dans la description qui suit, nous prendrons à titre non limitatif une orientation longitudinale, verticale et transversale indiquée par le trièdre L,V,T des figures 1 et 2 et une orientation avant et arrière correspondant au sens de marche du véhicule. Tel que représenté à la figure 1, une partie arrière 10 d'un véhicule 12 comporte un bouclier 14 sous lequel se trouve un dispositif de sortie de gaz d'échappement 16. io Le dispositif de sortie 16 est une pièce dont une partie avant (non représentée) est connectée à une ligne d'échappement (non représentée), ladite pièce s'étendant transversalement sur au moins une partie de la longueur du bouclier 14. Le dispositif de sortie 16 comporte une paroi supérieure 18, 15 d'orientation sensiblement horizontale et transversale et une paroi inférieure 20. La paroi supérieure 18 et la paroi inférieure 20 sont reliées entre elles par au moins deux parois latérales 22 de manière à définir au moins un orifice de sortie de gaz d'échappement 24. La paroi supérieure 18 et la paroi inférieure 20 peuvent se rejoindre à 20 distance des parois latérales 22 de manière à former au moins deux orifices de sortie 24. Tel que représenté à la figure 2, la paroi inférieure 20 du dispositif de sortie de gaz d'échappement 16 présente une première portion avant 26 sensiblement horizontale et une deuxième portion arrière 25 d'extrémité 28, tournée vers l'extérieur du véhicule et relevée vers le haut de manière à former un diffuseur d'air apte à provoquer une dépression sous le plancher du véhicule. Tel que représenté à la figure 1, le dispositif 16 est agencé dans une découpe 30 ménagée en partie basse du bouclier 14, de manière à 30 être bien intégré à l'arrière du véhicule. Une extrémité 32 de la paroi supérieure 18 et une extrémité 34 de la paroi inférieure 20 se trouvent dans le prolongement de la surface bouclier 14. Par ailleurs, -4 la paroi inférieure 20 du dispositif 16 se trouve sensiblement dans le prolongement d'un bord inférieur 36 du bouclier 14. Le dispositif 16 de sortie des gaz d'échappement comporte des moyens de fixation (non représentés) sur le bouclier 14 et/ou sur un 5 élément de structure (non représenté) du véhicule. Ainsi, l'agencement d'un dispositif de sortie des gaz d'échappement selon l'invention permet de disposer d'une pièce unique intégrant le diffuseur d'air, ce qui permet de simplifier le montage de ces deux fonctions et leur intégration. Cela a aussi pour avantage de réduire Io les coûts et d'améliorer la logistique. Other features and advantages of the invention will appear on reading the description of exemplary embodiments of an arrangement of an exhaust gas outlet device with reference to the appended drawings in which: FIG. 1 is a rear view of a vehicle having an arrangement of an exhaust gas outlet according to the invention. FIG. 2 is a sectional view along II-II of a detail of the rear of the vehicle of FIG. 1. In the description which follows, we will take, in a nonlimiting manner, a longitudinal, vertical and transverse orientation indicated. by the trihedron L, V, T of Figures 1 and 2 and a front and rear orientation corresponding to the direction of travel of the vehicle. As shown in FIG. 1, a rear portion 10 of a vehicle 12 has a shield 14 under which there is an exhaust gas outlet device 16. The output device 16 is a part of which a front part ( not shown) is connected to an exhaust line (not shown), said piece extending transversely over at least a portion of the length of the shield 14. The output device 16 has an upper wall 18, 15 substantially oriented horizontal and transverse and a bottom wall 20. The upper wall 18 and the lower wall 20 are interconnected by at least two side walls 22 so as to define at least one exhaust gas outlet orifice 24. The upper wall 18 and the bottom wall 20 can meet at a distance from the side walls 22 so as to form at least two outlet orifices 24. As shown in FIG. 2, the bottom wall 20 the exhaust gas outlet device 16 has a substantially horizontal first front portion 26 and a second rear end portion 28, facing outwardly of the vehicle and raised upwardly to form an air diffuser able to cause a depression under the floor of the vehicle. As shown in Figure 1, the device 16 is arranged in a cutout 30 formed in the lower part of the shield 14, so as to be well integrated at the rear of the vehicle. One end 32 of the upper wall 18 and one end 34 of the bottom wall 20 are in the extension of the shield surface 14. Moreover, -4 the lower wall 20 of the device 16 is substantially in the extension of an edge The exhaust gas outlet device 16 has fastening means (not shown) on the shield 14 and / or on a structural member (not shown) of the vehicle. Thus, the arrangement of an exhaust gas outlet device according to the invention makes it possible to have a single piece integrating the air diffuser, which simplifies the assembly of these two functions and their integration. It also has the advantage of reducing costs and improving logistics.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0757388A FR2920705A3 (en) | 2007-09-06 | 2007-09-06 | Exhaust gas outlet device assembly for motor vehicle i.e. sport vehicle, has lower wall comprising horizontal front portion and upwardly raised rear end portion to form air diffuser, which generates depression under floor pan of vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0757388A FR2920705A3 (en) | 2007-09-06 | 2007-09-06 | Exhaust gas outlet device assembly for motor vehicle i.e. sport vehicle, has lower wall comprising horizontal front portion and upwardly raised rear end portion to form air diffuser, which generates depression under floor pan of vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2920705A3 true FR2920705A3 (en) | 2009-03-13 |
Family
ID=39304806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0757388A Pending FR2920705A3 (en) | 2007-09-06 | 2007-09-06 | Exhaust gas outlet device assembly for motor vehicle i.e. sport vehicle, has lower wall comprising horizontal front portion and upwardly raised rear end portion to form air diffuser, which generates depression under floor pan of vehicle |
Country Status (1)
Country | Link |
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FR (1) | FR2920705A3 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1862696U (en) * | 1959-08-17 | 1962-11-22 | Bernd Dipl Ing Metzmacher | EXHAUST FOR MOTOR VEHICLES. |
DE3409667A1 (en) * | 1984-03-16 | 1985-09-26 | Audi AG, 8070 Ingolstadt | Rear part of a motor vehicle |
JPH04339079A (en) * | 1991-05-13 | 1992-11-26 | Yamaha Motor Co Ltd | Device for improving aerodynamic characteristic of car |
FR2890642A1 (en) * | 2005-09-13 | 2007-03-16 | Renault Sas | Motor vehicle body anti-lift air diffuser has flat, inclined and curved sections with fixings along free edge |
FR2897830A1 (en) * | 2006-02-27 | 2007-08-31 | Renault Sas | Motor vehicle`s e.g. sporting vehicle, rear structure, has heat shield disposed between diffuser and exhaust device for partly placing on diffuser, such that direct contact is created between diffuser and heat shield |
-
2007
- 2007-09-06 FR FR0757388A patent/FR2920705A3/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1862696U (en) * | 1959-08-17 | 1962-11-22 | Bernd Dipl Ing Metzmacher | EXHAUST FOR MOTOR VEHICLES. |
DE3409667A1 (en) * | 1984-03-16 | 1985-09-26 | Audi AG, 8070 Ingolstadt | Rear part of a motor vehicle |
JPH04339079A (en) * | 1991-05-13 | 1992-11-26 | Yamaha Motor Co Ltd | Device for improving aerodynamic characteristic of car |
FR2890642A1 (en) * | 2005-09-13 | 2007-03-16 | Renault Sas | Motor vehicle body anti-lift air diffuser has flat, inclined and curved sections with fixings along free edge |
FR2897830A1 (en) * | 2006-02-27 | 2007-08-31 | Renault Sas | Motor vehicle`s e.g. sporting vehicle, rear structure, has heat shield disposed between diffuser and exhaust device for partly placing on diffuser, such that direct contact is created between diffuser and heat shield |
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