EP1871630A1 - Systeme de gaz d'echappement a deux voies - Google Patents

Systeme de gaz d'echappement a deux voies

Info

Publication number
EP1871630A1
EP1871630A1 EP05849042A EP05849042A EP1871630A1 EP 1871630 A1 EP1871630 A1 EP 1871630A1 EP 05849042 A EP05849042 A EP 05849042A EP 05849042 A EP05849042 A EP 05849042A EP 1871630 A1 EP1871630 A1 EP 1871630A1
Authority
EP
European Patent Office
Prior art keywords
strut
exhaust system
connecting portion
plane
tabs
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.)
Withdrawn
Application number
EP05849042A
Other languages
German (de)
English (en)
Inventor
Reinhold Stammel
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.)
Faurecia Emissions Control Technologies Germany GmbH
Original Assignee
Emcon Technologies Germany Augsburg GmbH
ArvinMeritor Emissions Technologies GmbH
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 Emcon Technologies Germany Augsburg GmbH, ArvinMeritor Emissions Technologies GmbH filed Critical Emcon Technologies Germany Augsburg GmbH
Publication of EP1871630A1 publication Critical patent/EP1871630A1/fr
Withdrawn legal-status Critical Current

Links

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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/04—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits

Definitions

  • the invention relates to a double-stranded exhaust system, with a first tube and a second tube, each of which can conduct an exhaust gas flow, wherein the two tubes are interconnected by a strut.
  • the strut has two functions. On the one hand, it serves to position the two tubes relative to one another. For this purpose, the length of the strut and thus the distance between the two tubes is adjustable from each other. Proper adjustment of the strut ensures that, for example, the two tailpipes of the exhaust system or other components (e.g., mufflers) when installed in the vehicle are located at the design or design point. On the other hand, the strut serves to stabilize the two pipes of the exhaust system with each other. The stabilizing effect is important both during assembly and later in operation when the tubes of the exhaust system are excited to vibrate.
  • the object of the invention is to provide a double-stranded exhaust system in which the arranged between two tubes strut is both easy to assemble and has a high fatigue strength.
  • the invention provides that the strut consists of a first and a second part, wherein each part is at least at the end of the tube associated with two layers executed and the opposite
  • the Strut only consists of very few components, namely the first and the second part and a connecting element, such as a screw with nut, which connects the two connecting portions of the parts of the strut together.
  • a connecting element such as a screw with nut
  • Each part of the strut since it is designed to be double-layered at the end facing away from the connecting portion, be connected in a particularly advantageous manner with the corresponding pipe of the exhaust system.
  • it is suitable for this purpose to carry out the end of each part of the strut assigned to the tube as two spaced-apart tabs which are welded or soldered to the tube. In this way, a very strong connection between the parts of the strut and the pipes of the exhaust system results.
  • each part of the strut is designed to be completely double-layered.
  • Each part of the strut then consists of two sheet metal parts, which are simply punched out and connected to each other, for example by welding points, soldering or flanging.
  • Connecting portion has a U-shaped cross-section and the other connecting portion made flat and is received between the legs of a connecting portion. In this way, there is an improved stability of the strut.
  • each connecting portion has a slot through which a screw extends, to which a nut is applied.
  • the plane in which the connecting portions extend is twisted, for example, by about 90 °.
  • This embodiment reduces the stiffness of the strut against loads which act along the longitudinal axis of the tubes, so try to move a pipe parallel to the other. This reduction in rigidity significantly reduces the stresses on the connection between the strut and the tubes.
  • the desired rotation of the strut can be achieved in that each part of the strut is plastically deformed by twisting around the corresponding angular range, for example by about 90 °.
  • FIG. 1 is a schematic view of a double-stranded exhaust system
  • FIG. 2 shows a section along the plane H-II of FIG. 1;
  • FIG. 4 shows a section along the plane IV-IV of FIG. 2.
  • FIG. 1 shows a double-stranded exhaust system is shown, which, based on the illustration from left to right can be flowed through by exhaust gas. Only relevant here is a strut 10, which is arranged between two pipes 12, 14 of the exhaust system.
  • the strut 10 consists of a first part 16 and a second part 18.
  • the two parts 16, 18 are each made double-layered; They consist of two metal strips, which are connected to each other.
  • a plurality of welds 20 are provided.
  • Each part 16, 18 is provided at its end facing the corresponding tube 12, 14 with two spaced-apart tabs 22, 24, the end portions of each of the other tab are bent away. In this way, the end portions of the tabs 22, 24 are approximately tangent to the outer surface of the corresponding tube 12, 14 at. There, the end portions with the tubes 12, 14 are welded. This is indicated here by welds 26 in the form of a fillet weld in each case.
  • the tabs 22, 24 can also be soldered to the tubes 12, 14.
  • the distance of the tabs 22, 24 and the end portions of each other between 50 and 90% of the diameter of the corresponding tube 12, 14th
  • each part 16, 18 of the strut 10 has a connecting portion 28 and 30, respectively.
  • the connecting portion 28 of the part 16 of the strut 10 is formed with a U-shaped cross-section (see Fig. 3) by its outer edges are bent by 90 ° to parallel legs 32. Between the legs 32 of the connecting portion 28 of the connecting portion 30 of the portion 18 of the strut 10 is received, wherein the connecting portion 30 is flat and flat.
  • the two connecting portions 28, 30 each have a slot 34 through which a screw 36 extends, to which a nut 38 is screwed. This makes it possible to adjust the total length of the strut 10 and thus the spacing of the tubes 12, 14 from one another in the desired manner.
  • the strut in the region of the connecting portions 28, 30 is rotated by 90 ° with respect to the orientation that have the portions of the strut just before the transition into the tabs 22, 24.
  • the plane in which the connecting portions 28, 30 extend (here parallel to the plane of the drawing) is rotated by about 90 ° with respect to the plane in which the strut just before the transition (indicated by the arrow P) in the tabs 22, 24 extends; this plane is perpendicular to the plane of the drawing and contains the longitudinal axis of the strut.
  • the strut 10 can yield in the area on both sides of the connecting sections 28, 30, since the bending resistance against such a load is comparatively low there. In this case too, therefore, no great loads act on the connection between the tabs 22, 24 and the tubes 12, 14.
  • the strut can also be twisted by angles other than 90 °, for example by 45 °. Alone it is crucial that the rotation is obtained a reduced rigidity against the loads that occur during operation.
  • the strut can also be mounted so that the tabs are not tangent to the tubes 12, 14, but the plane of the tabs is perpendicular to the longitudinal axis of the tubes.
  • the tubes would therefore run in the illustration of Figure 2 in the vertical direction. This also serves to adjust the stiffness of the strut to the loads acting during operation.
  • Strut Pipe: Pipe: first part: second part: Welding point: Lug: Lug: Weld seam: Connecting section: Connecting section: Leg: Slot: Screw: Nut

Landscapes

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

Abstract

Système de gaz d'échappement à deux voies, qui comporte un premier tuyau (12) et un second tuyau (14) pouvant chacun guider un flux de gaz d'échappement, ces deux tuyaux étant reliés l'un à l'autre par une entretoise (10). Ledit système est caractérisé en ce que l'entretoise (10) est constituée d'une première et d'une seconde partie (16, 18). Chaque partie (16, 18) possède au moins deux couches au niveau de son extrémité en contact avec le tuyau (12, 14) et possède à l'extrémité opposée un segment de liaison (28, 30) qui est relié au segment de liaison (30, 28) de l'autre partie (18, 16).
EP05849042A 2005-04-19 2005-12-23 Systeme de gaz d'echappement a deux voies Withdrawn EP1871630A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200520006248 DE202005006248U1 (de) 2005-04-19 2005-04-19 Doppelsträngige Abgasanlage
PCT/EP2005/014016 WO2006111197A1 (fr) 2005-04-19 2005-12-23 Systeme de gaz d'echappement a deux voies

Publications (1)

Publication Number Publication Date
EP1871630A1 true EP1871630A1 (fr) 2008-01-02

Family

ID=34684425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05849042A Withdrawn EP1871630A1 (fr) 2005-04-19 2005-12-23 Systeme de gaz d'echappement a deux voies

Country Status (3)

Country Link
EP (1) EP1871630A1 (fr)
DE (1) DE202005006248U1 (fr)
WO (1) WO2006111197A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057597C5 (de) * 2005-12-02 2015-11-12 Audi Ag Doppelsträngige Abgasanlage für ein Kraftfahrzeug
DE102006044087B4 (de) * 2006-09-20 2008-11-27 Audi Ag Modulares Verbindungselement
DE102008017883B4 (de) * 2008-04-09 2018-05-03 Eberspächer Exhaust Technology GmbH & Co. KG Abgasanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB403478A (en) * 1932-09-06 1933-12-28 Birmingham Small Arms Co Ltd Improvements in or relating to the assembly and fixing of exhaust pipes of internal combustion engines
US3261579A (en) * 1964-09-21 1966-07-19 Engman Mfg Company Universal muffler and tail pipe holding bracket
JPS5571920U (fr) * 1978-11-14 1980-05-17
US5195607A (en) * 1989-11-21 1993-03-23 Mazda Motor Corporation Exhaust system for automotive engine
DE10313568B4 (de) * 2003-03-26 2005-04-28 Zeuna Staerker Kg Kraftfahrzeug
DE10339635A1 (de) * 2003-08-28 2005-03-24 Daimlerchrysler Ag Haltevorrichtung zur Halterung von Bauelementen
JP2005201179A (ja) * 2004-01-16 2005-07-28 Calsonic Kansei Corp 排気管共振抑止装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006111197A1 *

Also Published As

Publication number Publication date
WO2006111197A1 (fr) 2006-10-26
DE202005006248U1 (de) 2005-06-16

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