WO2004097191A2 - Organe de la ligne d’echappement d’un vehicule automobile - Google Patents
Organe de la ligne d’echappement d’un vehicule automobile Download PDFInfo
- Publication number
- WO2004097191A2 WO2004097191A2 PCT/FR2004/001042 FR2004001042W WO2004097191A2 WO 2004097191 A2 WO2004097191 A2 WO 2004097191A2 FR 2004001042 W FR2004001042 W FR 2004001042W WO 2004097191 A2 WO2004097191 A2 WO 2004097191A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- orifice
- tube
- thin
- exhaust line
- walled
- 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.)
- Ceased
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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
-
- 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
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
Definitions
- the present invention relates to an exhaust line member of a motor vehicle, of the type comprising a wall delimiting a gas circulation orifice and a gas circulation pipe fitted in said orifice secured to the periphery of the orifice.
- the exhaust lines include pipes constituting pipes for exhaust gas piping. These pipes connect exhaust volumes to each other.
- Car manufacturers seek to lighten each element of the vehicle to reduce fuel consumption and reduce the cost of the vehicle, by limiting the material used.
- the invention aims to provide an exhaust line member whose weight is reduced, as well as a manufacturing process.
- the subject of the invention is an exhaust line member of the aforementioned type, characterized in that said tube has, in its main part, a thin-walled section having a reduced wall thickness which is less than 1 mm and, at its end fitted into said orifice, a thick-walled section of total wall thickness greater than said reduced thickness.
- the exhaust line member includes one or more of the following characteristics:
- - Said tubing comprises a thin-walled tube having said reduced wall thickness and an attached sleeve engaged inside the thin-walled tube at its end fitted into said orifice; and - said tubing comprises a thin-walled tube having said reduced wall thickness and an attached sleeve engaged around the thin-walled tube at its end fitted into the orifice; - Said tubing comprises, over most of its length, a thin-walled section extended by a thick-walled section disposed at the end fitted into said orifice, said thin-walled section and said thick-walled section having come in one piece ; - Said tubing comprises a thin-walled tube having said reduced wall thickness and a sleeve attached in the extension of the thin-walled tube and connected thereto by welding;
- - Said tubing comprises a thin-walled tube generally having said reduced wall thickness, and, at its end fitted into the orifice, the tube has a double thickness formed by the wall of the tube rolled up on itself;
- said exhaust line element comprises a cylindrical section delimiting said orifice, the end of the tubing being fitted into said cylindrical section, and the total wall thickness of said cylindrical section is greater than the reduced wall thickness the thin-walled section of said tubing;
- the difference between said total wall thickness of the thick-walled section extending at the end of the tubing and said reduced thickness of the thin-walled section of the tubing is between 0.1 and 0.5 mm;
- the ratio of said total wall thickness of the thick-walled section extending at the end of the tubing to said reduced thickness of the thin-walled section of the tubing is between 1, 1 and 2;
- the substantially constant diameter of the tubing is between 30 mm and 80 mm.
- the invention also relates to a method of manufacturing an exhaust line member comprising: - an exhaust line element comprising a wall defining a gas circulation orifice;
- a gas circulation pipe fitted into said orifice and retained by welding at the periphery of the orifice characterized in that it comprises the steps of:
- the invention finally relates to the use for securing an exhaust pipe of substantially constant diameter along its length, at the periphery of an orifice of an exhaust line element, the pipe comprising, on at least part of its length, a thin-walled section having a first wall thickness, of a tube whose end engaged in said orifice is formed of a thick-walled section having a second thickness, said second thickness being greater at said first thickness.
- FIG. 1 is a schematic view of an exhaust line comprising an exhaust line member according to the invention
- FIGS 2, 3, 4, 5 and 6 are views in longitudinal section of the connection between an element of the exhaust line of Figure 1 and a gas circulation pipe.
- Figure 1 is illustrated the propulsion system 10 of a motor vehicle.
- This installation comprises a heat engine 12 such as a diesel engine, or a petrol engine, and an exhaust line 14 according to the invention.
- the exhaust line 14 has one end 16 for connection to the engine 12 and one end 18 for releasing exhaust gases into the atmosphere.
- line 14 has an exhaust volume 20.
- the volume 20 constitutes for example an exhaust silencer having internally several chambers connected to each other by baffles in order to ensure a reduction in the acoustic nuisances caused by the release of the exhaust gases into the atmosphere and their circulation in the line.
- the volume 20 is connected to the inlet 16 of the line by a straight inlet pipe 26 connected to an intake manifold 27.
- the exhaust outlet 18 is formed at the end of a straight outlet pipe 28 .
- the pipes 26, 28 have, in their main part, that is to say outside the connection ends, thin-walled sections having a reduced wall thickness of less than 1 mm. This reduced thickness is preferably between 0.5 and 1 mm for tubing having a diameter between 30 mm and 80 mm.
- the pipes 26 and 28 At their connection ends with the exhaust volume, the pipes 26 and 28 have a thick-walled section, the total wall thickness of which is greater than the reduced thickness of the current part of the pipe.
- the exhaust volume 20 has a cylindrical side wall 30 closed at each end by a transverse wall 32, 34 also called cup.
- end walls have orifices 36, 38 for the circulation of gases to which the pipes 26 and 28 are connected.
- the transverse wall 34 has an outer collar 40 bordering the orifice 38.
- This collar is made of material with the transverse wall 34 and constitutes a barrel stretch.
- the thickness of the collar 40 is for example between 0.5 and 1.2 mm.
- the volume 20 further comprises an inner tube 42 for channeling the gases in the volume.
- This tube 42 has its end 44 axially engaged through the collar 40.
- the tube 42 has gas flow passages 46 in the exhaust volume.
- the wall thickness of the tube 42 is between 0.5 and 1.2 mm.
- the tubing 28 is fitted and connected to a cylindrical conduit whose total wall thickness is greater than the thickness of the tubing in its current part.
- This total wall thickness is in practice between 1 and 2.4 mm.
- the connection between the tubing 28 and the periphery of the orifice 38 is provided by a weld bead 48 formed around the thick-walled section.
- This weld bead is obtained by a MIG (Metal Inert Gas) or MAG (Metal Active Gas) type welding process.
- the tubing 28 comprises a thin-walled tube 50 whose wall thickness is reduced and is in particular less than 1 mm.
- the noted end 52 of the tube 50 is fitted into the orifice 38.
- this tube has an attached sleeve 54 internally.
- the sleeve 54 has a wall thickness of between 0.5 and 1.2 mm, its length being between 10 and 70 mm. The length of the sleeve is adapted so that it extends over the entire length of the part of the tube 50 fitted into the orifice 38.
- the sleeve 54 is linked to the tube 50 by a resistance welding process establishing several welding points 56 distributed along the periphery of the sleeve. This welding is carried out before the tube 50 containing the sleeve 54 is introduced into the orifice 38.
- the tube 50 previously equipped with the sleeve 54 is introduced into the orifice 38 and the peripheral weld bead 48 is formed at the end of the collar 40, at the end 44 of the tube
- FIGS. 3 to 6 other methods of fixing to the exhaust volume 20 of a tube are shown, the main part of which has a thin wall.
- identical elements are designated by the same reference numbers.
- the tubing 28 comprises a thin-walled tube 70 whose wall thickness is less than 1 mm.
- a outer sleeve 74 is attached around its connecting end 72. This sleeve has a length of between 10 and 70 mm and a thickness of between 0.5 and 1.2 mm.
- the sleeve 74 has, at its end turned towards the current part of the tube 70, a flare 76 facilitating the insertion of the tube 70 into the sleeve 74.
- the sleeve 74 is engaged around the tube 70 at its end 72 to be engaged in the orifice 38.
- the sleeve 74 is constricted on the tube 70 then is welded thereto, for example by resistance welding.
- this welding is carried out using a wheel circulating at the periphery of the sleeve, so that a continuous weld bead 78 is obtained between the tube 70 and the sleeve 74.
- the tube 70 is expanded on sleeve 74.
- the tube 70 thus equipped with the sleeve 74 is then introduced into the orifice 38.
- the same peripheral weld 80 is made at the end of the tube 44 to ensure the simultaneous connection of the collar 40, the end 44 of the tube and of sleeve 74.
- the tubing 28 comprises a thin-walled section 100 extending over most of its length.
- the wall thickness on this thin-walled section 100 is less than 1 mm.
- the tube 28 has a thick-walled section 104, the wall thickness of which is greater than that of the thin-walled section.
- This wall thickness is for example equal to 1.2 mm. It is preferably between 110% and 200% of the thickness of the wall of the thin-walled section.
- the total wall thickness of the thick-walled section is 0.1 to 0.5 mm greater than the wall thickness of the thin-walled section.
- Tubing 28 is formed by a spinning process from a tube whose initial wall thickness is equal to the wall thickness of the thick-walled section. In its current part, the tube is thinned by the spinning process, as known per se. Thus, the thin-walled and thick-walled sections came integrally with one another.
- the thick-walled section 104 is fitted into the orifice 38.
- the collar 40, the end 44 of the inner tube and the tubing 28 are connected together by a weld bead 106 formed around the thick-walled section 104.
- the tubing 28 comprises in its current part a thin-walled tube 120.
- an axial sleeve 124 At its end 122 engaged in the orifice 38 is reported an axial sleeve 124 whose wall thickness is greater than that of the tube with a thin wall 120.
- the sleeve 124 has a wall thickness of between 0.35 and 1.4 mm while being of a wall thickness greater than 10 to 100% compared to the wall thickness of the thin walled tube 120.
- the sleeve 124 is butted at the end of the tube 120, the butt connection being carried out for example by a laser welding process without adding metal, before the sleeve 124 is inserted into the orifice 38.
- a weld 126 is thus formed.
- the connection between the tubing 28 and the element of the exhaust line 20 is provided by a peripheral weld bead 128 formed around the sleeve 124 at the free ends of the tube 42 and the collar 40.
- the tubing 28 consists of a thin-walled tube 140 the end 142 of which is rolled up to form an outer skirt 144 s by inversion of a glove or invagination 'applying to the current part of the tube 140.
- the end section 142 thus has a double thickness.
- This double thickness section 146 is engaged in the orifice 38 and is welded to the ends of the collar 40 and of the tube 42 by a weld bead 146.
- the curl of the end 42 is inside and not outside.
- the element of the exhaust line is lightened, while retaining a satisfactory mechanical strength of the assembly.
- the proportions between the thicknesses of the thin and thick walls given by way of example are likely to apply to all the embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/554,500 US20060261594A1 (en) | 2003-04-29 | 2004-04-29 | Motor vehicle exhaust line member |
| DE112004000717.8T DE112004000717C5 (de) | 2003-04-29 | 2004-04-29 | Organ einer Auspuffleitung eines Kraftfahrzeugs |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR03/05276 | 2003-04-29 | ||
| FR0305276A FR2854431B1 (fr) | 2003-04-29 | 2003-04-29 | Organe de ligne d'echappement d'un vehicule automobile. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2004097191A2 true WO2004097191A2 (fr) | 2004-11-11 |
| WO2004097191A3 WO2004097191A3 (fr) | 2005-02-10 |
Family
ID=33155541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2004/001042 Ceased WO2004097191A2 (fr) | 2003-04-29 | 2004-04-29 | Organe de la ligne d’echappement d’un vehicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060261594A1 (fr) |
| DE (1) | DE112004000717C5 (fr) |
| FR (1) | FR2854431B1 (fr) |
| WO (1) | WO2004097191A2 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007032267B4 (de) | 2007-07-11 | 2018-01-18 | Emcon Technologies Germany (Augsburg) Gmbh | Abgasanlagen-Rohr mit maßgeschneiderter Wandstärke |
| US20100229993A1 (en) * | 2009-03-11 | 2010-09-16 | Kwin Abram | Reinforcement for exhaust system connection interface |
| US10436099B2 (en) | 2017-04-06 | 2019-10-08 | Tenneco Automotive Operating Company Inc. | Exhaust conduit hanger |
| JP6970002B2 (ja) * | 2017-12-18 | 2021-11-24 | トヨタ自動車株式会社 | 質量体付き排気系部品 |
| JP7803918B2 (ja) * | 2023-12-28 | 2026-01-21 | フタバ産業株式会社 | 消音器の製造方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH383706A (de) * | 1960-08-18 | 1964-10-31 | Sulzer Ag | Dichtende Verbindung eines austenitischen Teils mit einem austenitisch plattierten, ferritischen Teil |
| JPS58178196A (ja) * | 1982-04-12 | 1983-10-19 | Mitsubishi Heavy Ind Ltd | 伝熱細管の插着方法 |
| GB2143275B (en) * | 1983-07-02 | 1987-03-25 | Production Eng Res | Silencer for exhaust gases |
| US4576247A (en) * | 1983-09-22 | 1986-03-18 | Development Finance Corporation Of New Zealand | Locking member |
| DE8717423U1 (de) * | 1987-08-06 | 1988-11-10 | Siemens AG, 1000 Berlin und 8000 München | Wärmetauscherrohr |
| IT212201Z2 (it) * | 1987-09-29 | 1989-07-04 | Gilardini Spa | Tubazione con flangia di estremita per i gas di scarico da un motore di un veicolo |
| JPH01159118U (fr) * | 1988-04-19 | 1989-11-02 | ||
| FR2695990B1 (fr) * | 1992-09-22 | 1994-12-02 | Valeo Thermique Moteur Sa | Tube pour échangeur de chaleur à assemblage mécanique et échangeur de chaleur ainsi obtenu. |
| JP2828898B2 (ja) * | 1994-05-17 | 1998-11-25 | 株式会社三五 | 排気管の継手構造と製造方法 |
| JPH10196572A (ja) * | 1997-01-07 | 1998-07-31 | Matsushita Electric Ind Co Ltd | 密閉型圧縮機 |
| DE19750959A1 (de) * | 1997-11-18 | 1999-06-02 | Zeuna Staerker Kg | Metallisches Rohr |
| EP1061240A3 (fr) * | 1999-06-17 | 2002-12-11 | Scambia Industrial Developments Aktiengesellschaft | Procédé de raccordement d'éléments d'un système d'échappement et ainsi qu'un système d'échappement |
| US6298935B1 (en) * | 1999-12-01 | 2001-10-09 | Scambia Industrial Developments Ag | Exhaust system for a motor vehicle and a motor vehicle with the exhaust system |
| DE10109112A1 (de) * | 2001-02-24 | 2002-09-05 | Volkswagen Ag | Verfahren zum Verbinden zweier Bauteile aus Titan |
| NZ510774A (en) * | 2001-03-27 | 2003-09-26 | Ronald Malcolm Bond Sanderson | Plate and tube join and method |
| US6540046B1 (en) * | 2001-08-06 | 2003-04-01 | Nelson Industries, Inc. | Compact economical spark arrestor and muffler |
-
2003
- 2003-04-29 FR FR0305276A patent/FR2854431B1/fr not_active Expired - Lifetime
-
2004
- 2004-04-29 WO PCT/FR2004/001042 patent/WO2004097191A2/fr not_active Ceased
- 2004-04-29 DE DE112004000717.8T patent/DE112004000717C5/de not_active Expired - Fee Related
- 2004-04-29 US US10/554,500 patent/US20060261594A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE112004000717B4 (de) | 2016-02-04 |
| WO2004097191A3 (fr) | 2005-02-10 |
| US20060261594A1 (en) | 2006-11-23 |
| DE112004000717T5 (de) | 2006-10-19 |
| DE112004000717C5 (de) | 2021-06-17 |
| FR2854431B1 (fr) | 2006-09-01 |
| FR2854431A1 (fr) | 2004-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0057623B1 (fr) | Silencieux de gaz d'échappement de moteur thermique | |
| EP2067979B1 (fr) | Dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant | |
| EP1956281B1 (fr) | Dispositif d'atténuation des bruits pour circuit d'admission de fluide gazeux | |
| EP1306542A1 (fr) | Filtre à air, conduit d'admission et ensemble constitué d'un filtre et d'un conduit d'admission de ce genre | |
| EP0395540A1 (fr) | Silencieux modulaire | |
| FR2620169A1 (fr) | Partie de ligne d'echappement, notamment pour moteur a combustion interne | |
| EP2256330B1 (fr) | Dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant. | |
| FR2789610A1 (fr) | Procede de fabrication d'une rampe commune | |
| FR2746892A1 (fr) | Dispositif de raccordement pour echangeur de chaleur a plaques, en particulier pour vehicule automobile | |
| EP0156711A1 (fr) | Tube soudé à double paroi et son procédé de fabrication | |
| FR2742857A1 (fr) | Plaque collectrice pour echangeur de chaleur | |
| FR2847938A1 (fr) | Perfectionnement a un flexible de decouplage pour une ligne d'echappement de moteur de vehicule automobile | |
| FR2928436A1 (fr) | Bride de derivation, dispositif de derivation comprenant un tuyau principal et ladite bride de derivation et procede de raccordement par soudage d'une telle bride de derivation. | |
| EP2128425B1 (fr) | Dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant | |
| WO2014102029A1 (fr) | Ligne d'echappement de vehicule automobile comportant une rotule perfectionnee | |
| WO2006018581A1 (fr) | Element de ligne d'echappement | |
| FR2854430A1 (fr) | Ligne d'echappement pour moteur thermique | |
| US20060261594A1 (en) | Motor vehicle exhaust line member | |
| WO2006061526A1 (fr) | Dispositif de depollution des gaz d'echappement d'un moteur thermique | |
| WO2007144500A1 (fr) | Dispositif de depollution de gaz d'echappement d'un moteur thermique | |
| FR2854428A1 (fr) | Ligne d'echappement pour moteur thermique. | |
| WO2004018849A2 (fr) | Dispositif de depollution des gaz d'echappement d'un moteur | |
| FR2854432A1 (fr) | Ligne d'echappement pour moteur thermique. | |
| FR2935747A1 (fr) | Ligne d'echappement de vehicule automobile avec un tube soude sur un volume d'echappement | |
| FR2848484A3 (fr) | Procede d'assemblage de tubulures metalliques a parois minces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2006261594 Country of ref document: US Ref document number: 10554500 Country of ref document: US |
|
| 122 | Ep: pct application non-entry in european phase | ||
| WWP | Wipo information: published in national office |
Ref document number: 10554500 Country of ref document: US |