EP0022063B1 - Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne et procédé pour sa fabrication - Google Patents

Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne et procédé pour sa fabrication Download PDF

Info

Publication number
EP0022063B1
EP0022063B1 EP80810177A EP80810177A EP0022063B1 EP 0022063 B1 EP0022063 B1 EP 0022063B1 EP 80810177 A EP80810177 A EP 80810177A EP 80810177 A EP80810177 A EP 80810177A EP 0022063 B1 EP0022063 B1 EP 0022063B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
silencer
exhaust pipe
parts
shaped
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
Application number
EP80810177A
Other languages
German (de)
English (en)
Other versions
EP0022063A1 (fr
Inventor
Jean Hardt
Jakob Widrig
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.)
Alcan Holdings Switzerland AG
Original Assignee
Schweizerische Aluminium AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4290436&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0022063(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Priority to AT80810177T priority Critical patent/ATE6290T1/de
Publication of EP0022063A1 publication Critical patent/EP0022063A1/fr
Application granted granted Critical
Publication of EP0022063B1 publication Critical patent/EP0022063B1/fr
Expired 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 ; 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
    • 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
    • F01N13/16—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 ; 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
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • 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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • 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
    • F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/08—Surface coverings for corrosion prevention
    • 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
    • F01N2530/06—Aluminium or alloys thereof

Definitions

  • the invention relates to a device for discharging the exhaust gases of internal combustion engines with at least one exhaust pipe comprising and forming an interior sleeve-like muffler from at least two interconnected parts, the exhaust pipe having perforations in the interior of the muffler and optionally sound absorbers being arranged, and a method for producing such a device Contraption.
  • They usually consist of steel, sheet steel or chrome steel sheet and in some cases are provided with a corrosion-protective surface coating.
  • connection stubs coming from the ends of a pot are tapered by round hammers.
  • the round hammering can be carried out over a mandrel or also without a mandrel as cold forming or hot forming.
  • Such a pot has several disadvantages.
  • the shaping of the connection piece by means of rotary hammers, which is taken from the conventional manufacturing technology for sheet metal, not only requires expensive tools when it is manufactured precisely, but is also labor-intensive and complicated.
  • the inventor has set itself the goal of developing a device of the type mentioned at the outset which is easy and inexpensive to produce, is light in weight, shows little susceptibility to corrosion and reduces the number of weld seams at the time.
  • the sleeve parts of the muffler consist of aluminum and / or an aluminum alloy and are each provided with a tapered heel by means of cold extrusion or deep drawing, which are seamlessly followed by sleeves which are molded onto the completely continuous exhaust pipe.
  • the two sleeve parts are advantageously positively connected to one another in a connection area.
  • the two sleeve parts of the muffler are positively connected to one another in a connection area with the aid of an intermediate wall, which is preferably made of steel and has an annular profile.
  • the sleeves of the sleeve parts on the exhaust pipe can be positively connected to one another by profiling the sleeves and the exhaust pipe.
  • the method for producing the device is characterized in that the individual parts of the muffler are positively connected to one another with the aid of the magnetic form method.
  • the sleeve parts which are preferably made from extruded hollow bodies, have a cylindrical or elliptical shape.
  • the hollow bodies can also be produced by deep drawing.
  • the sleeve parts are preferably connected to one another radially to the longitudinal axis of the same, since this makes the seam as short as possible and the vibrations can be better absorbed.
  • the profiling and thus the connection of the two sleeve parts by means of the Magneform process is carried out either by placing a workpiece with the desired profile on the inner surface of the silencer or by pre-profiling an inserted sleeve part. In both cases, the existing profile is transferred to the non-profiled part (s) by applying the Magneform tool.
  • Magneform process also allows an easy and inexpensive connection of the sleeves and the exhaust pipe, with an adhesive possibly being introduced between the two in order to produce an airtight seal.
  • sleeve 4 encompassing a tube 4, which can be dismantled into a sleeve part 2 with a wall 6 and a sleeve part 3 with a wall 7.
  • the sleeve parts 2, 3 can have a cylindrical or oval cross section Q, the wall 6 of the sleeve part 2 having a shoulder-like shoulder 9 at one end, through which the opening cross section Q of the sleeve part 2 is increased by approximately the size of a wall thickness and a coupling area B is formed. The sleeve part 3 is inserted into this coupling area B.
  • the opening cross section Q is reduced by tapered shoulders 16, which are followed by sleeves 10, on the inner wall 11 of which part of the tube wall 5 of the tube 4 abuts.
  • a workpiece 14 preferably made of steel, is placed on the inner wall 11 of the sleeve part 3, which has a profile 15 in the coupling area B, which the walls 6 and 7 of the sleeve parts 2 and 3 align.
  • Fig. 3 offers three connection options for both sleeve parts 2 and 3.
  • the wall 7 of the sleeve part is pre-profiled, while the wall 6 of the sleeve part 2 adapts to this profile or is matched by means of magnetic deformation.
  • connection of the two sleeve parts 2 and 3 is produced in a coupling area B 2 by welding or gluing.
  • connection can also be made by joining and gluing or the like of folded edges of the two sleeve parts 2 and 3 or by an impression 20 of the sleeve part 3 engaging in a groove 21 formed by the sleeve part 2.
  • the tube 4 has 13 openings 12 within the interior of both sleeve parts.
  • sound absorbers are arranged, which, for. B. may also consist of known deposits, other silencer systems known today can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Supercharger (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Claims (8)

1. Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne comportant au moins un silencieux en forme de pot, entourant un tuyau d'échappement, formant un volume intérieur et constitué d'au moins deux parties liées l'une à l'autre, étant précisé que dans le volume intérieur du silencieux, le tuyau d'échappement présente des perforations et des garnitures acoustiques sont éventuellement disposées, caractérisé en ce que les parties de pot (2 et 3) du silencieux (R) sont en aluminium et/ou en alliage d'aluminium et sont munies chacune, par extrusion à froid ou emboutissage profond, d'une réduction (16) que suivent des tubulures sans soudure (10) que l'on forme sur le tuyau d'échappement qui traverse complètement.
2. Dispositif selon la revendication 1, caractérisé en ce que les deux parties de pot (2 et 3) du silencieux (R) sont liées l'une à l'autre de par la forme dans la zone de liaison (B,).
3. Dispositif selon les revendications 1 et 2, caractérisé en ce que les deux parties de pot sont liées, de par la forme, à une paroi intermédiaire (14), de préférence en acier et présentant un profilage de forme annulaire (15), et l'une à l'autre, dans la zone de liaison (B).
4. Dispositif selon les revendications 1 à 3, caractérisé en ce que les tubulures (10) des parties de pot (2 et 3) sont liées, de par la forme, au tuyau d'échappement par profilage de ces parties.
5. Procédé pour la fabrication du dispositif selon les revendications 1 à 4, caractérisé en ce que les différentes du silencieux (R) sont liées l'une à l'autre, de par la forme, à l'aide du procédé Magneform.(formage magnétique).
6. Procédé pour la fabrication du dispositif selon la revendication 2, caractérisé en ce que les deux parties de pot (2 et 3) sont liées l'une à l'autre, de par la forme, en utilisant le procédé Magneform (formage magnétique) par profilage des deux parties.
7. Procédé pour la fabrication du dispositif selon la revendication 3, caractérisé en ce que les deux parties de pot (2 et 3) sont liées, de par la forme, dans la zone de liaison (B), à une paroi intermédiaire (14), de préférence en acier et présentant un profilage annulaire (15), et l'une à l'autre par profilage des deux parties (2 et 3) à l'aide du procédé Magneform (formage magnétique).
8. Procédé pour la fabrication d'un dispositif selon les revendications 1 à 4, caractérisé en ce que les tubulures (10) des parties de pot (2 et 3) sont liées au tuyau d'échappement (14) par profilage de ces parties à l'aide du procédé Magneform (formage magnétique).
EP80810177A 1979-06-06 1980-05-27 Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne et procédé pour sa fabrication Expired EP0022063B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80810177T ATE6290T1 (de) 1979-06-06 1980-05-27 Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen und verfahren zur herstellung derselben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5250/79A CH647302A5 (de) 1979-06-06 1979-06-06 Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen.
CH5250/79 1979-06-06

Publications (2)

Publication Number Publication Date
EP0022063A1 EP0022063A1 (fr) 1981-01-07
EP0022063B1 true EP0022063B1 (fr) 1984-02-15

Family

ID=4290436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80810177A Expired EP0022063B1 (fr) 1979-06-06 1980-05-27 Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne et procédé pour sa fabrication

Country Status (12)

Country Link
US (3) US4352408A (fr)
EP (1) EP0022063B1 (fr)
JP (1) JPS55164718A (fr)
AT (1) ATE6290T1 (fr)
AU (1) AU5899080A (fr)
CA (1) CA1179274A (fr)
CH (1) CH647302A5 (fr)
DE (2) DE2928989A1 (fr)
ES (1) ES257685Y (fr)
NO (1) NO801669L (fr)
YU (1) YU152180A (fr)
ZA (1) ZA803353B (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH647302A5 (de) * 1979-06-06 1985-01-15 Alusuisse Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen.
DE3101252A1 (de) * 1981-01-16 1982-09-02 Alcan Aluminiumwerke GmbH, 3400 Göttingen Abgasschalldaempfer fuer brennkraftmaschinen und verfahren zu dessen herstellung
DE3415460A1 (de) * 1984-04-25 1985-10-31 INTERATOM GmbH, 5060 Bergisch Gladbach Hochtemperaturfester abgaskatalysator-traegerkoerper aus stahlblechen mit hohem aluminiumanteil und verfahren zu seiner herstellung
IT1233289B (it) * 1989-04-07 1992-03-26 Acerbis Plastica Italia Silenziatore ad assorbimento per motori a scoppio, in particolare per veicoli fuoristrada
US5205719A (en) * 1992-01-13 1993-04-27 Copeland Corporation Refrigerant compressor discharge muffler
US5530213A (en) * 1993-05-17 1996-06-25 Ford Motor Company Sound-deadened motor vehicle exhaust manifold
FR2706977B1 (fr) * 1993-06-21 1995-10-13 Manuli Automobile France Sa
EP0995018B1 (fr) * 1997-07-07 2002-04-10 Nelson Industries, Inc. Silencieux modulaire
DE19751940C1 (de) * 1997-11-24 1999-03-25 Mann & Hummel Filter Schalldämpfer mit einem Nebenschlußresonator
AU2438899A (en) * 1998-02-09 1999-08-23 Klil Industries Ltd. Aluminum muffler and method of manufacture
US6558137B2 (en) * 2000-12-01 2003-05-06 Tecumseh Products Company Reciprocating piston compressor having improved noise attenuation
GB2381834B (en) * 2001-09-07 2004-08-25 Avon Polymer Prod Ltd Noise and vibration suppressors
US20050067217A1 (en) * 2001-11-20 2005-03-31 Hansen Helge Reimer Exhaust system and a method of producing the same
FR2839533B1 (fr) * 2002-05-07 2004-11-19 Faurecia Sys Echappement Dispositif nettoyable de depollution des gaz d'echappement d'un moteur
US8820325B2 (en) * 2002-10-11 2014-09-02 The Regents Of The University Of California Bymixer apparatus and method for fast-response, adjustable measurement of mixed gas fractions in ventilation circuits
US6832872B2 (en) 2002-11-13 2004-12-21 Blaw-Knox Construction Equipment Corporation Gas discharge device for a construction vehicle
US7160519B1 (en) 2003-07-28 2007-01-09 Fleetguard, Inc. Serviceable exhaust aftertreatment device, and configured cylindrical bodies for coupling
DE102004037480A1 (de) * 2004-08-03 2006-03-02 Zeuna-Stärker GmbH & Co KG Fahrzeugabgasreinigungsvorrichtung und Verfahren zum Herstellen derselben
FR2879240B1 (fr) * 2004-12-10 2010-12-17 Faurecia Sys Echappement Dispositif de depollution des gaz d'echappement d'un moteur thermique
US20070116617A1 (en) * 2005-11-21 2007-05-24 Lawrukovich Michael P Exhaust treatment device comprising lock-seam and methods of assembling the same
FR2946120B1 (fr) * 2009-05-29 2015-11-06 Hutchinson Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique,et ligne d'admission l'incorporant.
US20140196977A1 (en) * 2013-01-16 2014-07-17 Henn Gmbh & Co Kg. Silencer and method for manufacturing the same
AT513955A1 (de) * 2013-01-16 2014-08-15 Henn Gmbh & Co Kg Schalldämpfer und Verfahren zu seiner Herstellung
JP6087679B2 (ja) * 2013-03-21 2017-03-01 本田技研工業株式会社 エンジン用マフラ

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682316A (en) * 1928-08-28 williams
US1889795A (en) * 1928-12-04 1932-12-06 Frank H Smith Method of joining pipes
US1972065A (en) * 1931-03-02 1934-08-28 Noblitt Sparks Ind Inc Muffler
US2241768A (en) * 1939-11-03 1941-05-13 Floyd E Deremer Silencer construction
FR1368204A (fr) * 1963-06-17 1964-07-31 Duralumin Silencieux d'échappement
GB1084237A (fr) * 1963-09-12
US3227241A (en) * 1964-03-16 1966-01-04 Corning Glass Works Ceramic mufflers
US3263772A (en) * 1964-06-17 1966-08-02 Arvin Ind Inc Sound attenuating gas conduit with one-quarter wave-length side branch chambers
US3415336A (en) * 1966-11-14 1968-12-10 Arvin Ind Inc Resonator and method of making it
US3381774A (en) * 1967-07-10 1968-05-07 Mercury Metal Products Inc Muffler with interconnected end bells and telescoped inner pipe
US3640755A (en) * 1969-02-13 1972-02-08 Du Pont Coatings for automotive exhaust gas reactors
US3648803A (en) * 1969-10-13 1972-03-14 Walker Mfg Co Exhaust system
GB1299939A (en) * 1970-06-16 1972-12-13 John Raymond Goodman Improvements in motor vehicle exhaust systems
DE2520301A1 (de) * 1975-05-07 1976-11-18 Leistritz Maschfabrik Paul Abgasschalldaempfer fuer brennkraftmaschinen
AT355878B (de) * 1975-05-30 1980-03-25 Vmw Ranshofen Berndorf Ag Auspuffanlage
DE2653732A1 (de) * 1976-11-26 1978-06-01 Kloeckner Humboldt Deutz Ag Abgasschalldaempfer fuer brennkraftmaschinen
JPS577770Y2 (fr) * 1977-01-13 1982-02-15
FR2388993A1 (fr) * 1977-04-28 1978-11-24 Leistritz Hans Dispositif de conduction de gaz comportant des faisceaux de conduites et aboutissant a l'atmosphere
US4228203A (en) * 1978-01-27 1980-10-14 Toyo Kogyo Co., Ltd. Method of forming aluminum coating layer on ferrous base alloy workpiece
CH647302A5 (de) * 1979-06-06 1985-01-15 Alusuisse Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen.

Also Published As

Publication number Publication date
ZA803353B (en) 1981-06-24
NO801669L (no) 1980-12-08
US4745988A (en) 1988-05-24
ES257685U (es) 1981-11-01
YU152180A (en) 1983-01-21
CH647302A5 (de) 1985-01-15
CA1179274A (fr) 1984-12-11
ES257685Y (es) 1982-05-01
US4352408A (en) 1982-10-05
DE3066563D1 (en) 1984-03-22
ATE6290T1 (de) 1984-03-15
EP0022063A1 (fr) 1981-01-07
DE2928989A1 (de) 1980-12-11
AU5899080A (en) 1980-12-11
JPS55164718A (en) 1980-12-22
US4446942A (en) 1984-05-08

Similar Documents

Publication Publication Date Title
EP0022063B1 (fr) Dispositif d'évacuation des gaz d'échappement pour moteurs à combustion interne et procédé pour sa fabrication
EP0737803A1 (fr) Collecteur d'échappement, en particulier pour un moteur à combustion interne d'un véhicule à moteur, et procédé pour sa fabrication
EP1518043B1 (fr) Echangeur thermique pour gaz d'echappement et procede de fabrication associe
DE1552127B2 (de) Anordnung zum Befestigen eines Metallrohres in einer Öffnung einer Metallplatte mit metallurgischer Bindung durch fortschreitenden Explosionsdruck
DE3834080C2 (fr)
AT390220B (de) Verbindung zwischen zwei vorzugsweise metallischen rohren sowie verfahren zu ihrer herstellung
EP0023041A1 (fr) Enceinte extérieure pour silencieux pour moteurs à combustion interne
DE10023149A1 (de) Hochdruckkraftstoffeinspritzrohr für Dieselmotoren
CH654100A5 (de) Heizkoerper.
DE3202429A1 (de) Schraubverbindung fuer rohrarmaturen und verfahren ihrer herstellung
DE1755384C2 (de) Verfahren zur Herstellung von Lenkrohrmuffen für Fahrräder o.dgl.
EP0780635A2 (fr) Conduit pour la rénovation d'une cheminée
DE961343C (de) Verfahren zur Herstellung mehrerer in der gleichen Hoehe bzw. der gleichen Querschnittsebene liegender Anschlussstutzen an einem Rohr
DE2211041C2 (de) Rohrverbindung fur Bohrrohre od dgl
EP0070406A2 (fr) Procédé de fabrication d'un tronçon de conduite tubulaire comportant au moins un coude placé entre des parties de tube droites
DE3146379C2 (de) Rohrkupplung
DE2117221A1 (de) Verfahren zum Zusammenbau durch Schweißen von im Abstand zueinander anzuordnenden Hohlkörper, insbesondere Radiatorenpl atten
DE102008055733B3 (de) Vorrichtung zur Verbindung der Enden von Rohren
DE1602436A1 (de) Verfahren zum Befestigen von Rohren in Rohrwaenden
DE608379C (de) Stehbolzen mit einem die beiden Kesselwaende dicht verbindenden biegsamen Rohr
EP0644393A1 (fr) Radiateur tubulaire
EP0727275A1 (fr) Procédé de soudage des extrémités de tubes minces d'échangeurs de chaleur sans laisser de fentes résiduelles
DE2224440A1 (de) Verfahren zum herstellen einer verbindung zwischen hohlkoerpern und danach hergestellte fittings
DE10320104B4 (de) Gasführungsrohr-Anordnung aus Metall für Luftsäcke von Kraftwagen
DE4319885A1 (de) Verfahren zur Herstellung eines Gelenkaußenteils

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

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19810129

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 6290

Country of ref document: AT

Date of ref document: 19840315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3066563

Country of ref document: DE

Date of ref document: 19840322

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ALCAN ALUMINIUMWERK NUERNBERG GMBH, FRANKFURT/MAIN

Effective date: 19841115

NLR1 Nl: opposition has been filed with the epo

Opponent name: ALCAN ALUMINIUMWERK NUERNBERG GMBH.

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

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

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19851005

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

27O Opposition rejected

Effective date: 19851005

NLR2 Nl: decision of opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910411

Year of fee payment: 12

Ref country code: CH

Payment date: 19910411

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910412

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910416

Year of fee payment: 12

Ref country code: AT

Payment date: 19910416

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910417

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910515

Year of fee payment: 12

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910531

Year of fee payment: 12

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

Ref country code: GB

Effective date: 19920527

Ref country code: AT

Effective date: 19920527

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

Ref country code: SE

Effective date: 19920528

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

Ref country code: LI

Effective date: 19920531

Ref country code: CH

Effective date: 19920531

Ref country code: BE

Effective date: 19920531

BERE Be: lapsed

Owner name: SCHWEIZERISCHE ALUMINIUM A.G.

Effective date: 19920531

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

Ref country code: NL

Effective date: 19921201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920527

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

Ref country code: FR

Effective date: 19930129

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19930202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 80810177.8

Effective date: 19921204

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

PLAE Information related to rejection of opposition modified

Free format text: ORIGINAL CODE: 0009299REJO

D27O Information related to the rejection of opposition deleted