[go: up one dir, main page]

EP0849445B1 - Collecteur d'échappement et procédé pour sa fabrication - Google Patents

Collecteur d'échappement et procédé pour sa fabrication Download PDF

Info

Publication number
EP0849445B1
EP0849445B1 EP19960120586 EP96120586A EP0849445B1 EP 0849445 B1 EP0849445 B1 EP 0849445B1 EP 19960120586 EP19960120586 EP 19960120586 EP 96120586 A EP96120586 A EP 96120586A EP 0849445 B1 EP0849445 B1 EP 0849445B1
Authority
EP
European Patent Office
Prior art keywords
flange
exhaust manifold
exhaust
mounting flange
side mounting
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.)
Expired - Lifetime
Application number
EP19960120586
Other languages
German (de)
English (en)
Other versions
EP0849445A1 (fr
Inventor
Günther Hans Lühr
Otto Steinhauser
Ernst Dr. Krieger
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.)
Arvin Industries Deutschland GmbH
Original Assignee
Zeuna Starker GmbH and Co KG
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 Zeuna Starker GmbH and Co KG filed Critical Zeuna Starker GmbH and Co KG
Priority to EP19960120586 priority Critical patent/EP0849445B1/fr
Priority to DE59608215T priority patent/DE59608215D1/de
Publication of EP0849445A1 publication Critical patent/EP0849445A1/fr
Application granted granted Critical
Publication of EP0849445B1 publication Critical patent/EP0849445B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • 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
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • 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
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/26—Multi-layered walls

Definitions

  • the present invention relates to a trough-shaped Exhaust collector for an internal combustion engine with a Exhaust manifold, an engine-side mounting flange, which encloses several cylinder outlets, and an outlet connection comprising an outlet flange. It also relates to a method of manufacture of such an exhaust manifold.
  • the exhaust gas of several cylinders is generally known an exhaust manifold summarizing an internal combustion engine with several inlet pipes, one pipe junction and an outlet pipe, the inlet pipes each flanged to an outlet of an internal combustion engine are.
  • Such exhaust manifolds are either heavy Castings designed for operation at high temperatures, as they usually occur with hot exhaust gases, are suitable.
  • an elaborate cutting Rework required to fit the mating surfaces to manufacture individual inlet pipe flanges.
  • Between The cylinder head and exhaust manifold flange is an additional one Gasket required to blow off the exhaust gases prevent.
  • the manufacture of such castings is complex and especially with small quantities expensive. Assembly is also time and cost intensive.
  • the European patent application EP 0718480 A1 discloses a generic trough-shaped exhaust gas collector, its motor-side mounting flange encloses several cylinder outlets and theirs Exhaust gases collected in a common pan to which one common outlet connector connected to an outlet flange is. With such a device the heat losses at low operating loads considerably decreased, causing a rapid increase in Temperature of a downstream catalyst and thus an improved efficiency of the same causes.
  • the first design is around a casting, which have similar weight and Has processing disadvantages, as in the beginning described prior art is the case.
  • US 4537027 A discloses an exhaust manifold, comprising an outer tub-like shell, an inner flat sheet metal part and a flange part, the three Individual parts are welded together.
  • the inner flat sheet metal part and the flange part have openings through which the exhaust gas leaving the cylinder head in the from the outer tub-like shell and the inner flat sheet metal part bounded space enters.
  • With the outer shell is an outlet connector with a Outlet flange firmly connected.
  • the object of the present invention is a trough-shaped exhaust manifold of the type mentioned to create the inexpensive to manufacture and at the same time easy to use during assembly is.
  • the Exhaust collector wall thicknesses compared to one Cast part can be reduced, resulting in a weight saving leads and - due to the lower heat capacity - for a faster start of a downstream Catalyst contributes.
  • the Fixing flange by reshaping the edge of the Exhaust gas collecting tray manufactured in one piece with this is formed, it is achieved that no welding delay occurs as in the prior art of Case is, which means costly machining post-processing is avoided.
  • the low weight of the exhaust manifold and the low Easy assembly ensures the number of components. By forming a sealing edge in the motor-side mounting flange is also achieved that an additional seal is dispensed with can be, which also for easier assembly contributes.
  • the sealing edge can for example be such be designed so that they over the flange level of mounting and sealing flange on the motor side (in hereinafter simply referred to as the mounting flange) protrudes and seals when assembled the flange of the cylinder head. Thereby prevents the sealing edge from blowing off hot exhaust gases. Furthermore, a sealing edge designed in this way acts like a bead and increases the stiffness of the motor side Mounting flange.
  • Another advantageous development of the present Invention provides that a loose flange plate the motor-side mounting flange on the Cylinder head is facing away from the side. Thereby becomes a more even distribution of the contact pressure on the entire mounting flange and thus on the Seal guaranteed.
  • the loose flange plate provides even if the exhaust manifold and motor-side mounting flange from a relative thin sheet is made, a deformation-free, tight contact of the motor-side mounting flange on the cylinder head safely.
  • the loose flange plate can be all-round, undivided his. However, for easier assembly, it can be in advantageously also be divided.
  • the Material thickness of such loose flange plates is 5 mm to 10 mm, preferably 8 mm, being simple Structural steels can be used. By using it a loose flange plate is in the installed state Controlled parts sliding under the influence of temperature possible, which avoids tension in the material.
  • the Exhaust gas collecting pan with a wall thickness of 1.8 mm to 2.5 mm, preferably 2 mm. This will make it easy Construction with sufficient strength created.
  • the exhaust gas collecting pan can be made from a conventional one single-layer sheet.
  • a preferred one Further development of the invention is noteworthy characterized in that the exhaust manifold - and accordingly the molded-on mounting flange on the motor side - consists of a multi-layer sheet. This can in particular be constructed as a sandwich sheet, which two layers of sheet metal and in between a layer of fiber fleece or the like.
  • the exhaust manifold a substantially constant cross section over the Has longitudinal extension. This causes the wall thickness of the sheet metal part after deep drawing total longitudinal extent of the exhaust gas collecting pan in is essentially the same.
  • outlet port in Direction of the longitudinal extent of the exhaust gas collecting pan one end of the same is arranged. This will Exhaust gas flows within the tub a defined one Given the direction of flow.
  • Another advantageous embodiment provides that in an internal combustion engine with exhaust gas recirculation (EGR) the exhaust gas recirculation duct from the exhaust manifold is enclosed.
  • EGR exhaust gas recirculation
  • a method of making the above Exhaust collector consists of the (mechanical or hydromechanical) deep drawing of an originally flat Sheet metal, which creates a tub with molded on it circumferential mounting flange and a pipe socket Is formed, the punching out or Cut the flange contour and open the Pipe approach and welding an outlet pipe flange to the open pipe socket of the exhaust manifold.
  • Deep drawing can also consist of several There are deep-drawing steps. In one of the deep-drawing steps a sealing edge is formed in the mounting flange on the motor side. An advantageous one The method can be further developed during the forming process the formation of a rim area on this flange provide. A suitable welding process is available MAG welding for the stainless steels used.
  • the possibly provided through holes for the Flange fittings can be drilled or punched out his.
  • Another advantageous manufacturing process for Exhaust collector has one or more forming steps to form a trough-shaped structure with integrally connected to the motor side Mounting flange and one-sided pipe attachment on. This is followed by a punching or cutting process, in which the outer contour of the sealing flange as well if necessary, the holes for the flange screw connection and the Pipe attachment are punched out.
  • a circulating or divided loose flange plate is then preferably 5 mm to 10 mm thick made of simple structural steel, with the outer contour and the position of the through holes match those of the sealing flange. After any necessary deburring and The loose flange plate is placed on for cleaning the mounting flange and welding one also deep-drawn outlet flange pipe.
  • Fig. 1 shows an exhaust manifold with an exhaust manifold 1, a circumferential one-piece molded thereon engine-side mounting flange 2 and an outlet flange 3, which has a flange connector 15 with a molded on the exhaust manifold 1 pipe extension 4 is connected by a weld 6.
  • the engine side Mounting flange 2 has in its peripheral area an all-round erected on-board area 5 that increases its strength.
  • the Fastening flange 2 is included as a sealing flange circumferential sealing edge (see. Fig. 4) executed what the use of an additional seal is unnecessary.
  • On the mounting flange 2 is a loose flange plate 9 put on.
  • the longitudinal extent of the exhaust manifold is one Many times larger than its width and depth, which the Design of the exhaust manifold for in-line and V-engines corresponds. In the latter, however, there are two exhaust gas collectors with mirror flanges to use.
  • Fig. 2 shows the exhaust manifold acc. Fig. 1 from the direction of the outlet flange 3, which has a triangular shape Floor plan with three through holes 7 for fastening screws having. Furthermore, the engine side Fastening flange 2 shown, the outer contour each at the positions of the through holes 8 for the flange screw connection has protrusions. On the outer edge of the mounting flange 2 is the on-board area 5 shown, the mounting flange in addition Stiffness gives.
  • Fig. 3 shows a section along the line III-III from Fig. 2 by the exhaust manifold.
  • the Exhaust manifold 1 with the engine-side mounting flange 2, its rim area 5 and the weld seam 6 and the outlet flange 3 on the engine side Mounting flange 2 loose flange plate 9 shown.
  • the sectional view is also a Loose flange plate 9 and the mounting flange 2 aligned through hole 8 for one Flange screw recognizable.
  • the outlet flange 3 with the Flange connection 15 is made in this embodiment made of the same material as the exhaust manifold 1, the wall thickness of the exhaust manifold 1 .mu.m can be a few tenths of a millimeter smaller. Width B and depth T of the exhaust manifold 1 have approximately that same order of magnitude.
  • FIG. 4 shows detail IV from FIG. 3, the sealing edge 10, which is shown by a distance t, which is approximately Is 0.5 mm, over the flange level of the motor side Mounting flange 2 protrudes.
  • This lead fulfills a sealing function, creating an additional Seal between the mounting flange on the motor side 2 and engine block can be dispensed with.
  • Fig. 5 shows a section through the exhaust manifold and the loose flange plate 9 in the assembled state to one Cylinder head 11 with the intake valve 12 and the exhaust valve 13.
  • the mode of operation of the sealing edge 10 clearly that on the flange of the cylinder head rests sealingly. This will blow off the hot exhaust gases from the outlet channel 14 avoided.
  • the Exhaust collector shows compared to the prior art a cross-section with shallow depth, whereby the Pipe attachment with the outlet flange 3 streamlined diagonally and not vertically as in the prior art is attached to the outlet duct 14.

Landscapes

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

Claims (14)

  1. Collecteur d'échappement pour un moteur à combustion interne comprenant un caisson (1) de collecteur d'échappement, une bride de fixation (2) côté moteur, qui englobe plusieurs sorties de cylindre, et un tronçon de tube de sortie (15) comprenant une bride de sortie (3), caractérisé en ce que le caisson (1) de collecteur d'échappement et la bride de fixation (2) côté moteur forment une pièce intégrale en tôle, la bride de fixation (2) côté moteur étant réalisée d'un bloc avec le caisson (1) de collecteur d'échappement et étant façonnée sur le bord de celui-ci par formage de la tôle, et un rebord d'étanchéité (10) étant façonné dans la bride de fixation (2) côté moteur, afin d'offrir un appui étanche de la bride de fixation (2) côté moteur sur la culasse.
  2. Collecteur d'échappement selon la revendication 1, caractérisé en ce que la bride de fixation (2) côté moteur présente une zone de bord (5) continue relevée.
  3. Collecteur d'échappement selon une des revendications 1 ou 2, caractérisé en ce qu'une plaque (9) formant bride folle continue est montée sur la bride de fixation (2), côté moteur, du côté de celle-ci éloigné de la culasse.
  4. Collecteur d'échappement selon une des revendications 1 ou 2, caractérisé en ce qu'une plaque (9) formant bride folle divisée est montée sur la bride de fixation (2), côté moteur, du côté de celle-ci éloigné de la culasse.
  5. Collecteur d'échappement selon la revendication 3 ou 4, caractérisé en ce que la plaque (9) formant bride folle a une épaisseur comprise dans une plage allant de 5 mm à 10 mm, de préférence de 8 mm.
  6. Collecteur d'échappement selon une des revendications 1 à 5, caractérisé en ce que le caisson (1) de collecteur d'échappement a une épaisseur comprise dans une plage allant de 1,8 mm à 2,5 mm, de préférence de 2 mm.
  7. Collecteur d'échappement selon une des revendications 1 à 6, caractérisé en ce que le caisson (1) de collecteur d'échappement est formé d'une tôle multicouches, par exemple d'une tôle sandwich comprenant des feuilles de tôle et une couche de non-tissé disposée entre deux.
  8. Collecteur d'échappement selon une des revendications 1 à 7, caractérisé en ce que le caisson (1) de collecteur d'échappement présente une section transversale essentiellement constante sur sa longueur.
  9. Collecteur d'échappement selon une des revendications 1 à 7, caractérisé en ce que le caisson (1) de collecteur d'échappement présente une section transversale qui s'élargit en direction de la sortie.
  10. Collecteur d'échappement selon une des revendications 1 à 9, caractérisé en ce que la bride de sortie (3), vu dans la direction de la longueur du collecteur d'échappement (1), est disposée à une extrémité.
  11. Collecteur d'échappement selon une des revendications 1 à 10, caractérisé en ce que dans le cas de moteurs à combustion interne à recyclage des gaz d'échappement (AGR) le canal de recyclage est enfermé dans le caisson (1) de collecteur d'échappement.
  12. Procédé de fabrication d'un collecteur de gaz d'échappement, comportant les étapes suivantes :
    emboutissage par un procédé d'emboutissage profond d'une tôle plane à l'origine, pour former un caisson avec une bride de fixation côté moteur attenante, pourvue d'un rebord d'étanchéité intégré et d'une naissance de tube ;
    découpage ou poinçonnage du contour de la bride et ouverture de la naissance de tube ;
    soudage d'une bride de sortie sur le tronçon de tube ouvert du caisson de collecteur d'échappement.
  13. Procédé de fabrication d'un collecteur d'échappement selon la revendication 1, caractérisé en ce que lors de l'étape d'emboutissage profond on façonne en outre un bord redressé continu sur la bride de fixation côté moteur.
  14. Procédé de fabrication d'un collecteur de gaz d'échappement, comportant les étapes suivantes :
    emboutissage profond d'une tôle plane, pour former un caisson avec une bride de fixation côté moteur attenante, pourvue d'un rebord d'étanchéité intégré et d'une naissance de tube ;
    découpage ou poinçonnage du contour de la bride et ouverture de la naissance de tube ;
    réalisation d'une plaque formant bride folle monobloc ou divisée ;
    montage de la plaque formant bride folle sur la bride de fixation, sur la face de celle-ci éloignée de la culasse ;
    Soudage d'une bride de sortie sur le tronçon de tube ouvert du caisson de collecteur d'échappement.
EP19960120586 1996-12-20 1996-12-20 Collecteur d'échappement et procédé pour sa fabrication Expired - Lifetime EP0849445B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19960120586 EP0849445B1 (fr) 1996-12-20 1996-12-20 Collecteur d'échappement et procédé pour sa fabrication
DE59608215T DE59608215D1 (de) 1996-12-20 1996-12-20 Abgassammler und Verfahren zu seiner Herstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19960120586 EP0849445B1 (fr) 1996-12-20 1996-12-20 Collecteur d'échappement et procédé pour sa fabrication

Publications (2)

Publication Number Publication Date
EP0849445A1 EP0849445A1 (fr) 1998-06-24
EP0849445B1 true EP0849445B1 (fr) 2001-11-14

Family

ID=8223528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960120586 Expired - Lifetime EP0849445B1 (fr) 1996-12-20 1996-12-20 Collecteur d'échappement et procédé pour sa fabrication

Country Status (2)

Country Link
EP (1) EP0849445B1 (fr)
DE (1) DE59608215D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359073B4 (de) * 2003-12-17 2006-03-02 Daimlerchrysler Ag Abgaskrümmer

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001287A1 (de) * 1999-08-05 2001-02-22 Hans A Haerle Abgaskrümmer
DE10034538A1 (de) * 2000-07-15 2002-01-24 Eberspaecher J Gmbh & Co Abgaskrümmer
DE10102896B4 (de) * 2001-01-23 2004-01-15 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Abgassammlers
WO2002073010A2 (fr) * 2001-01-29 2002-09-19 Haerle Hans A Collecteur d'echappement
SE517067C2 (sv) * 2001-04-26 2002-04-09 Press & Plaatindustri Ab Grenrör
DE10125121A1 (de) 2001-05-23 2002-11-28 Daimler Chrysler Ag Abgaskrümmer
FR2873747B1 (fr) * 2004-07-29 2006-11-03 Faurecia Sys Echappement Collecteur d'echappement
DE102007058754A1 (de) * 2007-12-06 2009-06-10 Daimler Ag Brennkraftmaschine mit mehreren Brennräumen
DE102009033870A1 (de) 2009-07-17 2010-02-18 Daimler Ag Verbrennungskraftmaschine
DE102011002492A1 (de) 2011-01-11 2012-07-12 J. Eberspächer GmbH & Co. KG Flanschbauteil und Herstellungsverfahren
DE102014105656B4 (de) * 2014-04-22 2017-02-02 Benteler Automobiltechnik Gmbh Abgaskrümmer
FR3027626B1 (fr) * 2014-10-24 2018-01-05 Renault S.A.S Systeme d'echappement pour moteur a combustion interne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2145340A5 (fr) * 1971-07-08 1973-02-16 Hinderks M V
IT1188883B (it) * 1979-09-06 1988-01-28 Zeuna Staerker Kg Collettore per motori alternativi a combustione interna
US4537027A (en) * 1983-11-21 1985-08-27 Apx Group, Inc. Hybrid exhaust manifold
JPH0543227Y2 (fr) 1987-12-21 1993-10-29
EP0718480A1 (fr) 1994-11-25 1996-06-26 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Dispositif d'échappement pour moteur à combustion interne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359073B4 (de) * 2003-12-17 2006-03-02 Daimlerchrysler Ag Abgaskrümmer

Also Published As

Publication number Publication date
EP0849445A1 (fr) 1998-06-24
DE59608215D1 (de) 2001-12-20

Similar Documents

Publication Publication Date Title
DE69410399T2 (de) Auspuffkrümmerverbindungskonstruktion mit Luftspalt
EP0849445B1 (fr) Collecteur d'échappement et procédé pour sa fabrication
DE69104937T2 (de) Metalldichtung für Sammelleitung.
EP1206631B1 (fr) Collecteur de gaz d'echappement
EP2333265B1 (fr) Collecteur de gaz d'échappement doté d'un déflecteur
DE10125121A1 (de) Abgaskrümmer
EP1518043B1 (fr) Echangeur thermique pour gaz d'echappement et procede de fabrication associe
DE10307028B3 (de) Anordnung zur Überführung der Abgase eines Verbrennungsmotors in eine Abgasleitung
DE19819946A1 (de) Abgaskrümmer
EP1389267B1 (fr) Collecteur d'echappement
EP1522687B2 (fr) Collecteur à couche d'air
EP3473823A1 (fr) Élément de silencieux, silencieux doté dudit élément de silencieux et procédé de fabrication d'un élément de silencieux
DE69415796T2 (de) Dreiteilige, durch Stanzverfahren hergestellte Verbindung zum Erzielen gleichlanger Abgasleitungen
DE102009018104A1 (de) Abgaskrümmer
DE112019004078T5 (de) Verfahren zum herstellen eines verbindungsabschnitts
EP0869265A1 (fr) Conduit de fluide
DE112006003385B4 (de) Kombibaugruppe aus Abgasschalldämpfer, Nachbehandlungselement und Wasserabscheider
DE60211059T2 (de) Auslassrohre für einen Abgaskrümmer und Verfahren zur Herstellung
DE19753390A1 (de) Stapelförmig angeordneter, schneckenförmiger Krümmer
DE102008048897A1 (de) Luftspaltisolierter Abgaskrümmer einer Verbrennungskraftmaschine
EP2616649A1 (fr) Unité de traitement de gaz d'échappement pour une conduite de recyclage de gaz d'échappement
EP0049744B1 (fr) Procédé de fabrication de tôles étirées analogues
DE102006050052B4 (de) Gehäuseschale eines Abgasfilters und Verfahren zu deren Herstellung
DE102008017625B4 (de) Teilstück für eine Abgasanlage eines Verbrennungsmotors und Verfahren zu seiner Herstellung
DE10359073A1 (de) Abgaskrümmer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970624

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

AKX Designation fees paid

Free format text: DE FR GB IT SE

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT SE

17Q First examination report despatched

Effective date: 20000413

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20011114

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011114

REF Corresponds to:

Ref document number: 59608215

Country of ref document: DE

Date of ref document: 20011220

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020214

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20011114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011231