FR2621075A1 - EXHAUST FLANGE HOSE FOR EXHAUST GASES OF A VEHICLE ENGINE - Google Patents

EXHAUST FLANGE HOSE FOR EXHAUST GASES OF A VEHICLE ENGINE Download PDF

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Publication number
FR2621075A1
FR2621075A1 FR8812585A FR8812585A FR2621075A1 FR 2621075 A1 FR2621075 A1 FR 2621075A1 FR 8812585 A FR8812585 A FR 8812585A FR 8812585 A FR8812585 A FR 8812585A FR 2621075 A1 FR2621075 A1 FR 2621075A1
Authority
FR
France
Prior art keywords
pipe
flange
exhaust
vehicle engine
laser welding
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.)
Granted
Application number
FR8812585A
Other languages
French (fr)
Other versions
FR2621075B3 (en
Inventor
Mario Andrea Sarasso
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.)
Marelli Europe SpA
Original Assignee
Gilardini SpA
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 Gilardini SpA filed Critical Gilardini SpA
Publication of FR2621075A1 publication Critical patent/FR2621075A1/en
Application granted granted Critical
Publication of FR2621075B3 publication Critical patent/FR2621075B3/en
Expired legal-status Critical Current

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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 ; 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
    • F01N13/18—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • 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
    • 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
    • F01N13/18—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/026—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes by welding
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention se rapporte à la construction automobile. Ce tuyau d'échappement 1 muni d'une bride d'extrémité 3 présente, pour la fixation du tuyau proprement dit à la bride, au moins une zone de soudure au laser 7', 8'. Principales applications : raccordement du tuyau d'échappement au collecteur d'échappement et/ou à un élément interposé sur la longueur de la conduite d'échappement.The invention relates to automobile construction. This exhaust pipe 1 provided with an end flange 3 has, for fixing the pipe itself to the flange, at least one laser welding zone 7 ', 8'. Main applications: connection of the exhaust pipe to the exhaust manifold and / or to an element interposed along the length of the exhaust pipe.

Description

1 26210751 2621075

La présente invention est relative à un tuyau à bride d'extrémité pour les gaz d'échappement d'un moteur  The present invention relates to an end flange pipe for the exhaust gases of an engine

de véhicule et, plus particulièrement, bien que non ex-  vehicle, and in particular, although not ex-

clusivement, à la bride prévue pour le raccordement au collecteur d'échappement du moteur. Actuellement, le système de blocage entre le  clusively, to the flange provided for connection to the exhaust manifold of the engine. Currently, the blocking system between

collecteur d'échappement du moteur et le tuyau d'échappe-  engine exhaust manifold and exhaust pipe

ment qui mène au silencieux utilise généralement un as-  which leads to the silencer generally uses a

semblage à vis et écrou entre les brides d'extrémités respectives, et la liaison entre le tuyau d'échappement et sa bride d'extrémité respective est réalisée, par  screw-and-nut connection between the respective end flanges, and the connection between the exhaust pipe and its respective end flange is carried out by

exemple, par déformation plastique de ces éléments.  for example, by plastic deformation of these elements.

Le but de la présente invention est de réaliser un tuyau à bride d'extrémité pour les gaz d'échappement d'un moteur de véhicule qui présente une amélioration comparativement aux solutions antérieures, déjà connues,  The object of the present invention is to provide an end flange pipe for the exhaust gas of a vehicle engine which shows an improvement compared with prior solutions, already known,

de liaison entre la bride et le tuyau, et qui, plus pré-  connection between the flange and the pipe, and which, more

cisément, possède un mode d'actionnement relativement simple ainsi qu'une très grande efficacité fonctionnelle  precisely, has a relatively simple actuation mode and a very high functional efficiency

de la liaison, et ceci avec un coût de fabrication li-  linkage, and this with a manufacturing cost

mité. Selon l'invention, on réalise un tuyau à bride  moth. According to the invention, a flanged pipe is produced

d'extrémité pour les gaz d'échappement d'un moteur de vé-  end-piece for the exhaust gases of a combustion engine.

hicule caractérisé en ce que ledit tuyau présente, pour la fixation à la bride, au moins une zone de soudure au laser. Les figures du dessin annexé, donné uniquement  characterized in that said pipe has, for attachment to the flange, at least one laser welding zone. Figures in the attached drawing, given only

à titre d'exemple, feront bien comprendre comment l'in-  by way of example, make it clear how

vention peut être réalisée. Sur ce dessin, la figure 1 est une vue avant d'une première forme de réalisation d'un tuyau pour gaz d'échappement  vention can be realized. In this drawing, FIG. 1 is a front view of a first embodiment of an exhaust pipe.

assemblé à une bride d'extrémité prévue pour le raccorde-  assembled to an end flange provided for the connection

ment au collecteur du moteur, réalisé conformément au principe de l'invention; la figure 2 est une vue en coupe selon le plan II-II du tuyau à bride de la figure 1; la figure 3 est une variante de la forme de  the engine manifold, realized in accordance with the principle of the invention; Figure 2 is a sectional view along the plane II-II of the flanged pipe of Figure 1; FIG. 3 is a variant of the form of

réalisation représentée sur la figure 2.  embodiment shown in Figure 2.

Sur les figures 1 et 2, on a indiqué par la ré-  In Figures 1 and 2, it is indicated by the

férence 1 un tuyau métallique servant à évacuer les gaz  1 a metal pipe used to evacuate gases

d'échappement vers un silencieux, et dont le segment ini-  exhaust to a silencer, and whose initial segment

tial est monté dans un trou traversant 2 défini dans une bride d'extrémité 3 qui sert à raccorder le tuyau à un  tial is mounted in a through hole 2 defined in an end flange 3 which serves to connect the pipe to a

collecteur d'échappement (non représenté pour simpli-  exhaust manifold (not shown for simplicity

fier) du moteur endothermique d'un véhicule. Cette bride  proud) of the endothermic engine of a vehicle. This bridle

3 présente en effet des trous 5 destinés à donner passa-  3 has holes 5 intended to give

ge à des vis (non représentées) de fixation à la bride  to screws (not shown) for fastening to the flange

de collecteur d'échappement. Entre le tuyau 1 et la bri-  exhaust manifold. Between pipe 1 and the

de 3, est interposée une douille métallique 4, de lon-  of 3, is interposed a metal sleeve 4, long

gueur relativement réduite et qui, selon l'invention, est fixée par soudure au laser, à la fois à la bride 3 et au tuyau 1; en particulier, on a réalisé entre la douille 4 et la bride 3 deux soudures circonférentielles 7 et 8 sur les deux faces, respectivement supérieure et  relatively reduced and which, according to the invention, is fixed by laser welding, both at the flange 3 and the pipe 1; in particular, between the sleeve 4 and the flange 3, two circumferential welds 7 and 8 have been produced on both sides, respectively upper and lower.

inférieure de la bride 3, et une soudure circonférentiel-  lower flange 3, and a circumferential weld-

le 9 est réalisée entre la douille 3 et le tuyau 1, sur les bords frontaux de cette douille et de ce tuyau qui sont alignés sur la face supérieure de la bride 3. Ces soudures au laser peuvent convenablement être exécutées  the 9 is made between the sleeve 3 and the pipe 1, on the front edges of this sleeve and this pipe which are aligned on the upper face of the flange 3. These laser welds can suitably be executed

avec des appareils d'un type classique.  with appliances of a conventional type.

Sur la figure 3, on a représenté une variante de réalisation dans laquelle la douille 4 manque et o le tuyau 1 est directement assemblé à la bride 3 par deux soudures circonférentielles au laser 7' et 8' qui sont ici aussi exécutées sur les deux faces, supérieure  In Figure 3, there is shown an alternative embodiment in which the sleeve 4 is missing and o the pipe 1 is directly assembled to the flange 3 by two laser circumferential welds 7 'and 8' which are here also performed on both sides , superior

et inférieure, de la bride 3.and lower, of the flange 3.

La réalisation de l'invention qui est décrite présente ainsi l'avantage de permettre d'obtenir une  The embodiment of the invention which is described thus has the advantage of making it possible to obtain a

liaison entre le tuyau d'échappement et la bride d'extré-  connection between the exhaust pipe and the end flange

mité qui possède une efficacité maximale en ce sens  which has maximum effectiveness in this respect

qu'elle garantit une parfaite étanchéité aux gaz d'échap-  that it guarantees a perfect seal against escaping gases.

pement, et dont l'exécution peut être automatisée, ceci avec tous les avantages qui en dérivent sous l'aspect de la réduction des temps et coûts de production et sans  and its execution can be automated, this with all the advantages derived from it in terms of reducing production time and costs and without

demander de main d'oeuvre spécialisée.  ask for specialized labor.

Il va de soi que de nombreuses modifications et variantes pourront être apportées par l'homme de l'art aux dispositifs qui viennent d'être décrits uniquement à titre d'exemples non limitatifs, notamment par substitu- tion des moyens techniques équivalents, sans pour cela sortir du cadre de l'invention. Entre autres, la bride 3  It goes without saying that many modifications and variations may be made by those skilled in the art to the devices which have just been described by way of non-limiting examples, in particular by substituting the equivalent technical means, without it goes beyond the scope of the invention. Among others, the flange 3

peut être, non Das la bride de raccordement au collec-  may be, no Das the connection flange to the

teur d'échappement du moteur mais, au contraire, une bri-  motor exhaust but, on the contrary, a

de de raccordement à des éléments interposés sur la lon-  connection to elements interposed on the length

gueur du tuyau d'échappement.exhaust pipe.

Claims (4)

R E V E N D I C A T IONSR E V E N D I C A T IONS 1 - Tuyau (1) muni d'une bride d'extrémité (3),  1 - Pipe (1) provided with an end flange (3), pour les gaz d'échappement du moteur d'un véhicule, ca-  for the exhaust gases of the engine of a vehicle, ractérisé en ce que ledit tuyau (1) présente, pour la  characterized in that said pipe (1) has, for the fixation à ladite bride (3), au moins une zone de soudu-  fastening to said flange (3), at least one weld zone re au laser (9; 7', 8').  laser re (9; 7 ', 8'). 2 - Tuyau selon la revendication 1, caractérisé en ce que ladite zone de soudure au laser (9; 7', 8')2 - Pipe according to claim 1, characterized in that said laser welding zone (9; 7 ', 8') est réalisée circonférentiellement sur ledit tuyau (1).  is circumferentially formed on said pipe (1). 3 - Tuyau selon la revendication 1 ou 2, carac-  3 - Pipe according to claim 1 or 2, characterized térisé en ce qu'il comprend des zones de soudure au laser (7, 8; 7', 8') sur les deux faces de ladite bride (3).  characterized in that it comprises laser welding zones (7, 8, 7 ', 8') on both sides of said flange (3). 4 - Tuyau selon une des revendications précéden-  4 - Pipe according to one of the preceding claims tes, caractérisé en ce que, entre ledit tuyau (1) et un trou (2) ménagé dans ladite bride (3) et dans lequel ledit tuyau (1) est inséré, est interposée une douille (4) qui présente au moins une zone de soudure au laser  characterized in that, between said pipe (1) and a hole (2) formed in said flange (3) and wherein said pipe (1) is inserted, is interposed a sleeve (4) which has at least one zone laser welding (7, 8, 9), aussi bien sur le côté dirigé vers ladite bri-  (7, 8, 9), both on the side directed towards the said de (3) que sur le côté diriqé vers ledit tuyau (1).  (3) only on the directional side towards said pipe (1).
FR8812585A 1987-09-29 1988-09-27 END FLANGE PIPE FOR THE EXHAUST GASES OF A VEHICLE ENGINE Expired FR2621075B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5368487U IT212201Z2 (en) 1987-09-29 1987-09-29 EXHAUST FLANGE PIPE FOR EXHAUST GASES FROM A VEHICLE ENGINE

Publications (2)

Publication Number Publication Date
FR2621075A1 true FR2621075A1 (en) 1989-03-31
FR2621075B3 FR2621075B3 (en) 1989-12-08

Family

ID=11284572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8812585A Expired FR2621075B3 (en) 1987-09-29 1988-09-27 END FLANGE PIPE FOR THE EXHAUST GASES OF A VEHICLE ENGINE

Country Status (3)

Country Link
DE (1) DE3832728A1 (en)
FR (1) FR2621075B3 (en)
IT (1) IT212201Z2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925869A1 (en) * 2006-11-21 2008-05-28 Honeywell International, Inc. Pneumatic tube assembly for electrical bonding of pneumatic components

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3334454B2 (en) * 1995-04-03 2002-10-15 トヨタ自動車株式会社 Exhaust manifold assembly structure
DE19713963C1 (en) * 1997-04-04 1998-10-22 Prototechnik Gmbh Fluid guide element
EP1178253A1 (en) * 2000-08-02 2002-02-06 Esser -Werke GmbH & Co. KG Composite pipe with flange
FR2854431B1 (en) * 2003-04-29 2006-09-01 Faurecia Sys Echappement EXHAUST LINE ORGAN OF A MOTOR VEHICLE.
DE102007032267B4 (en) * 2007-07-11 2018-01-18 Emcon Technologies Germany (Augsburg) Gmbh Exhaust system pipe with customized wall thickness
US11445664B2 (en) 2019-05-10 2022-09-20 Deere & Company Auger assembly for harvesting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925869A1 (en) * 2006-11-21 2008-05-28 Honeywell International, Inc. Pneumatic tube assembly for electrical bonding of pneumatic components

Also Published As

Publication number Publication date
DE3832728A1 (en) 1989-04-13
FR2621075B3 (en) 1989-12-08
IT212201Z2 (en) 1989-07-04
IT8753684V0 (en) 1987-09-29

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