EP2264293B1 - Spielausgleichselement für Auspuffendrohr und Fahrzeug mit diesem Spielausgleichselement - Google Patents

Spielausgleichselement für Auspuffendrohr und Fahrzeug mit diesem Spielausgleichselement Download PDF

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Publication number
EP2264293B1
EP2264293B1 EP10163507.6A EP10163507A EP2264293B1 EP 2264293 B1 EP2264293 B1 EP 2264293B1 EP 10163507 A EP10163507 A EP 10163507A EP 2264293 B1 EP2264293 B1 EP 2264293B1
Authority
EP
European Patent Office
Prior art keywords
shutter
cannula
hubcap
trim
pipe
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.)
Not-in-force
Application number
EP10163507.6A
Other languages
English (en)
French (fr)
Other versions
EP2264293A1 (de
Inventor
Jean-Marc Humbrecht
Yannick Fourcaudot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2264293A1 publication Critical patent/EP2264293A1/de
Application granted granted Critical
Publication of EP2264293B1 publication Critical patent/EP2264293B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/16—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/20—Exhaust or silencing apparatus characterised by constructional features having flared outlets, e.g. of fish-tail shape

Definitions

  • the invention relates to a shutter of a game located between a cannula of an exhaust line of an engine and a hubcap located around this cannula.
  • the invention also relates to an exhaust line end and a vehicle incorporating this shutter.
  • the cannula is the end of the exhaust line opposite the end connected to the engine.
  • the cannula is often embellished with a hubcap for aesthetic reasons.
  • Different types of hubcaps are known for example documents JP 2009 083801 , DE 195 17 462 and JP 2000 328924 or EP 1 860 295 .
  • This hubcap can be directly welded on the cannula or be integrated in the bumper. In the latter case, a game is necessary between the cannula and the hubcap. More specifically, this game must allow the cannula to move relative to the hubcap without hitting the hubcap during normal operation of the engine.
  • the displacement of the cannula relative to the hubcap is due to the dilations of the cannula under the effect of the heating created by the exhaust gases discharged, or to the movements of the cannula caused by the movements of the engine .
  • the game also helps absorb mounting dispersions.
  • the document FR2419393 describes an exhaust tube to be connected by the flange to the exhaust manifold.
  • This game also shows the underside of the vehicle and, in particular, the silencer of the exhaust line which is not very aesthetic.
  • the invention aims to remedy at least one of these disadvantages.
  • the shutter above closes the gap between the cannula and the hubcap. It therefore creates a pressure drop that limits the rise of the exhaust gas under the vehicle through this game.
  • the shutter is used to dampen the movement of the cannula inside the hubcap and therefore to reduce the amplitude of these displacements. This makes it possible to limit the violence of the impact between the cannula and the hubcap in the event of a strong shock. This can also be exploited to reduce the size of the game between the cannula and the hubcap.
  • the presence of a frustoconical face adapted to guide the cannula during its introduction inside the hubcap facilitates the mounting of the cannula inside the hubcap.
  • this shutter ensures a visual continuity between the cannula and the hubcap which improves the aesthetics of the vehicle.
  • the shutter is made of a material opaque to light.
  • the shutter is made of an exhaust gas-tight material.
  • an exhaust gas-tight material to make the shutter makes it possible to limit, or even eliminate, the ascent of the exhaust gas via the clearance between the cannula and the hubcap.
  • the shutter has an inner periphery fixed without any degree of freedom on the outer periphery of the cannula and an outer periphery whose dimensions are greater than the corresponding dimensions of the inner periphery of the hubcap to force the shutter into force. inside the hubcap.
  • the shutter has an outer periphery fixed without any degree of freedom on the inner periphery of the hubcap and an inner periphery whose dimensions are strictly smaller than the corresponding dimensions of the outer perimeter of the cannula to force force the cannula inside the shutter.
  • Sizing the shutter to allow it to snap into the hubcap or around the cannula facilitates assembly of the cannula inside the hubcap.
  • the invention also relates to a vehicle equipped with the above end of the exhaust line.
  • the figure 1 represents the silhouette of a motor vehicle 2 such as a car.
  • This vehicle 2 is equipped with a front bumper and a rear bumper 6.
  • front and rear are defined with respect to a direction F ranging from rearward towards the front of the vehicle 2.
  • the vehicle 2 also comprises an internal combustion engine 8 fluidly connected to an exhaust line 10 for discharging the exhaust gas produced by the engine 8 outside the vehicle 2.
  • This line Exhaust 10 includes a silencer 12 at the rear end which are welded two cannulas 14 and 16 to expel the exhaust gas outside the vehicle.
  • the exhaust line 10 may comprise other equipment such as a particulate filter, one or more catalysts, etc.
  • the figure 2 shows in more detail the end of the exhaust line 10.
  • the distal end of the cannulas 14 and 16 opens through an opening in the rear bumper 6 visible from outside the vehicle 2.
  • hubcaps 18 and 20 To improve the aesthetics of the cannulas 14 and 16, they open, respectively, inside hubcaps 18 and 20.
  • the hubcaps 18 and 20 are fixed without any degree of freedom to the bumper 6. Here, they completely surround the distal end of the cannulas 14 and 16.
  • the figure 3 represents a possible method of fixing the hubcaps 18 and 20 to the bumper 6.
  • the hubcaps 18 and 20 are fixed to the bumper 6 via, respectively, rigid tabs 22, 23 and 24, 25.
  • the hubcap 18 has an axis of revolution 28. Similarly, the cannula 14 extends substantially along this axis 28. The hubcap 18 extends beyond the distal end of the cannula 14. The hubcap 18 completely surrounds the distal end of the cannula 14. The distal end of the hubcap 18 terminates in a bead 30. Note that although in the illustrated example, the cannula and hubcap are generally cylindrical in shape, other forms are also possible without departing from the scope of the invention.
  • the cannula 14 moves inside the hubcap 18 because of various phenomena such as the thermal expansion caused by the heat of the exhaust gases expelled, and the deflections of the engine 8 during its operation.
  • a clearance J is provided between the outer periphery of the cannula 14 and the inner periphery of the hubcap 18. This set J is sized so that the displacements previously mentioned of the cannula 14 do not lead to a shock between the cannula 14 and the hubcap 18.
  • the shutter 36 has an inner periphery 38 directly in contact with the outer periphery of the cannula 14 and an outer periphery 40 directly in contact with the inner periphery of the hubcap 18.
  • the shutter 36 extends here continuously from the inner periphery 38 to the outer periphery 40.
  • the shutter 36 is made of a flexible material capable of elastically deforming in response to displacements of the cannula 14.
  • the chosen material is resistant to a temperature above 400 ° C and preferably at 450 ° C.
  • the material used to make the shutter 36 is opaque to light and creates a significant pressure drop in the flow of gases exhaust system to limit or eliminate the flow of exhaust gas through the game J.
  • the shutter 36 is made of a metal wool formed of a lattice of stainless steel wire.
  • the shutter 36 may also be made of a textile made from glass fibers or carbon fibers.
  • the shutter 36 may also be made of an elastomeric material resistant to more than 400 ° C and preferably more than 450 ° C.
  • the material chosen to make the shutter 36 preferably has a stiffness sufficient to prevent the cannula 14 from striking the hubcap 18 or at least sufficient to cushion the bulk of the shock when the vehicle 2 passes a back of donkey at the speed regulation.
  • the chosen material makes it possible to reduce, for example by a factor of two, the kinetic energy of the cannula that moves relative to the case where, under the same conditions, the shutter 36 would be absent.
  • the shutter 36 has a frustoconical face 42 facing the front of the vehicle.
  • This face 42 admits as an axis of revolution the axis 28.
  • the face 42 can guide the cannula 14 inside the hubcap 18 during its assembly.
  • the outer periphery 40 is fixed without any degree of freedom to the inner periphery of the hubcap 18.
  • This attachment is carried out using a fastening means 44 symbolized by a point.
  • This fixing means 44 is obtained by crimping, welding, clipping, clinching, riveting, screwing, gluing or other.
  • the outer periphery 40 is stuck in a bead of the hubcap ( figure 6 ).
  • the inner periphery 38 of the shutter 36 has a diameter D i strictly less than the diameter of the outer periphery of the cannula 14.
  • D i the diameter of the outer periphery of the cannula 14.
  • the cannula 14 must be force-fitted inside the hubcap 18.
  • the diameter of the outer periphery 40 is equal to or slightly less than the diameter of the inner periphery of the hubcap 18.
  • the Figures 7 and 8 represent a second embodiment of the end of the exhaust line 10 identical to that described with respect to Figures 4 to 6 with the exception that the shutter 36 is replaced by a shutter 50.
  • the shutter 50 is identical to the shutter 36 except that it is mounted in the opposite direction relative to the shutter 36. More specifically, the outer periphery 40 is mounted behind the inner periphery 38. Here, the outer periphery 40 is wedged without any degree of freedom on the inner periphery of the hubcap 18 by means of the bead 30 (FIG. figure 7 ) or by other means ( figure 8 ).
  • the bead 30 is used to secure the shutter 50, the number of fasteners required is decreased.
  • By against the mounting of the cannula 14 inside the hubcap 18 requires a special tool capable of increasing the diameter D i , during assembly, and at the same time guide the cannula 14 through the inner periphery 38 .
  • the Figures 9 and 10 represents a third possible embodiment of the end of the exhaust line 10.
  • This embodiment is identical to the embodiment described in FIG. figure 4 with the exception that the shutter 36 is replaced by a shutter 60.
  • the inner periphery 38 of the shutter 60 is fixed without any degree of freedom on the outer periphery of the cannula 14 by means of fixing means 62 symbolized by a point.
  • the fixing means 62 are for example identical to the fixing means 44.
  • the diameter of the inner periphery D i in this embodiment is equal to or slightly greater than the diameter of the outer periphery of the cannula 14.
  • the outer periphery 40 of the shutter 60 has a diameter of strictly greater than the diameter of the inner periphery of the hubcap 18. Thus, the outer periphery 40 is jammed by friction on the inner periphery of the hubcap 18. In this embodiment realization, the outer periphery 40 is behind the inner periphery 38. As in the embodiment described with regard to Figures 7 and 8 , the mounting of the cannula 14 equipped with the shutter 60 inside the hubcap 18 requires a special tool suitable, during assembly, to reduce the diameter De and, at the same time, to guide the cannula 14 to the inside the hubcap 18.
  • the figure 11 represents a fourth possible embodiment of the end of the exhaust line 10 identical to that described with respect to figures 9 and 10 with the exception that the shutter 60 is replaced by a shutter 70.
  • the shutter 70 is identical to the shutter 60 except that it is mounted in the opposite direction, that is to say that the inner periphery 38 is behind the outer periphery 40.
  • the shutter then has a frustoconical face 72 turned towards the inner periphery of the hubcap 18 which facilitates the introduction of the cannula inside the hubcap.
  • This last embodiment facilitates assembly since the cannula 14 can be force-fitted inside the hubcap 18.
  • the shutter has a frustoconical face such as the face 42.
  • the shutter can have the shape of a ring of elastically deformable material directly in contact with one side on the outer periphery of the cannula 14 and the other side on the inner periphery of the hubcap 18.
  • the end of the exhaust line may include one or more cannulas.
  • each cannula can be surrounded by its own hubcap or a hubcap common to all the cannulas. In the latter case, a shutter common to all the cannulas is made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Claims (6)

  1. Ende eines Abgasstrangs einer Brennkraftmaschine, durch das die Abgase nach außen ausgestoßen werden, das eine Kanüle (14, 16), eine Zierleiste (18, 20), die um die Kanüle (14, 16) liegt, umfasst, wobei die Kanüle (14, 16) nicht an der Zierleiste (80, 20) befestigt ist, wobei die Zierleiste (18, 20) von der Kanüle durch ein Spiel (J) getrennt ist, das es der Kanüle erlaubt, sich in Bezug auf die Zierleiste (18, 20), ohne diese Zierleiste (18, 20) zu stoßen, beim Betrieb des Motors (2) zu verlagern, wobei dieses Spiel (J) durch einen Verschluss (36; 50; 60; 70) verschlossen ist, der Folgendes aufweist
    - eine innere Peripherie (38), die direkt mit dem Außenumfang der Kanüle (14) in Berührung ist, und eine äußere Peripherie (40), die direkt mit dem Innenumfang der Zierleiste (18) in Berührung ist,
    - eine kegelstumpfförmige Seite (42; 72), die dazu geeignet ist, die Kanüle (14, 16) bei ihrem Einführen in das Innere der Zierleiste (18, 20) zu führen,
    und angepasst ist, um das Spiel zu verstopfen und sich elastisch als Reaktion auf die Verlagerung der Kanüle (14, 16) in Bezug zu der Zierleiste (18, 20) bei dem Betrieb des Motors (2) zu verformen.
  2. Ende nach einem der vorhergehenden Ansprüche, wobei der Verschluss (36; 50; 60; 70) aus einem Licht undurchlässigen Werkstoff hergestellt ist.
  3. Ende nach einem der vorhergehenden Ansprüche, wobei der Verschluss (36; 50; 60; 70) aus einem abgasdichten Werkstoff hergestellt ist.
  4. Ende nach einem der Ansprüche 1 bis 3, wobei der Verschluss (60; 70) eine innere Peripherie (38) umfasst, die ohne irgendeinen Freiheitsgrad auf dem Außenumfang der Kanüle (14) befestigt ist, und eine äußere Peripherie (40), deren Maße größer sind als die entsprechenden Maße des Innenumfangs der Zierleiste (18, 20), um den Verschluss unter Kraftanwendung in das Innere der Zierleiste (18, 20) zu schrumpfen.
  5. Ende nach einem der Ansprüche 1 bis 3, wobei der Verschluss (36; 50) eine äußere Peripherie (40) aufweist, die ohne irgendeinen Freiheitsgrad auf dem Innenumfang der Zierleiste befestigt ist, und eine innere Peripherie (38), deren Maße strikt kleiner sind als die entsprechenden Maße des Außenumfangs der Kanüle (14), um die Kanüle in dem Inneren des Verschlusses unter Kraftanwendung aufzuschrumpfen.
  6. Kraftfahrzeug, dadurch gekennzeichnet, dass es mit einem Abgasstrangende nach einem der Ansprüche 1 bis 5 ausgestattet ist.
EP10163507.6A 2009-06-18 2010-05-21 Spielausgleichselement für Auspuffendrohr und Fahrzeug mit diesem Spielausgleichselement Not-in-force EP2264293B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0954111A FR2947002B1 (fr) 2009-06-18 2009-06-18 Obturateur de jeu, extremite de ligne d'echappement et vehicule incorporant cet obturateur

Publications (2)

Publication Number Publication Date
EP2264293A1 EP2264293A1 (de) 2010-12-22
EP2264293B1 true EP2264293B1 (de) 2017-07-05

Family

ID=41571614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10163507.6A Not-in-force EP2264293B1 (de) 2009-06-18 2010-05-21 Spielausgleichselement für Auspuffendrohr und Fahrzeug mit diesem Spielausgleichselement

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EP (1) EP2264293B1 (de)
FR (1) FR2947002B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013113612A1 (de) * 2013-12-06 2015-06-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abgasanlage für ein Kraftfahrzeug
FR3021596B1 (fr) * 2014-06-02 2016-05-13 Renault Sa Agencement de carrosserie d'un vehicule automobile comprenant une canule d'echappement fictive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419393A1 (fr) * 1978-03-10 1979-10-05 Westaflex France Tubulure souple d'echappement de moteur de vehicule
EP1860295A2 (de) * 2006-05-24 2007-11-28 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Abgasanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517462A1 (de) * 1994-05-20 1995-11-23 Audi Ag Endrohr einer Abgasanlage
JP3821346B2 (ja) * 1999-05-21 2006-09-13 スズキ株式会社 マフラカッタ構造
JP2009083801A (ja) * 2007-10-03 2009-04-23 Mazda Motor Corp バンパ取付部の排気管プロテクタ構造

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419393A1 (fr) * 1978-03-10 1979-10-05 Westaflex France Tubulure souple d'echappement de moteur de vehicule
EP1860295A2 (de) * 2006-05-24 2007-11-28 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Abgasanlage

Also Published As

Publication number Publication date
FR2947002A1 (fr) 2010-12-24
FR2947002B1 (fr) 2011-07-01
EP2264293A1 (de) 2010-12-22

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