EP0057142A2 - Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf - Google Patents

Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf Download PDF

Info

Publication number
EP0057142A2
EP0057142A2 EP82400117A EP82400117A EP0057142A2 EP 0057142 A2 EP0057142 A2 EP 0057142A2 EP 82400117 A EP82400117 A EP 82400117A EP 82400117 A EP82400117 A EP 82400117A EP 0057142 A2 EP0057142 A2 EP 0057142A2
Authority
EP
European Patent Office
Prior art keywords
shells
plates
silencer
intermediate elements
elements
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
EP82400117A
Other languages
English (en)
French (fr)
Other versions
EP0057142A3 (en
EP0057142B1 (de
Inventor
Pierre Blanchot
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.)
INDUSTELER S.A.
Original Assignee
INDUSTELER SA
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 INDUSTELER SA filed Critical INDUSTELER SA
Publication of EP0057142A2 publication Critical patent/EP0057142A2/de
Publication of EP0057142A3 publication Critical patent/EP0057142A3/fr
Application granted granted Critical
Publication of EP0057142B1 publication Critical patent/EP0057142B1/de
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
    • F01N13/1872—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 ; 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • 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
    • F01N2470/06—Tubes being formed by assembly of stamped 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
    • 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
    • F01N2530/02—Corrosion resistive metals
    • F01N2530/04—Steel alloys, e.g. stainless steel

Definitions

  • the present invention relates to a silencer intended to be incorporated in the exhaust pipe of a motor vehicle, this silencer being most often made of stainless steel or a neighboring material resistant to the agents under consideration.
  • Mufflers are already known which are made from stainless steel or neighboring metal alloys, but we have always encountered great difficulties during the manufacture of these mufflers, because stainless steel is a noble material. not easy to open. In addition, if it is necessary to weld, the welds are points of low resistance that corrosion can quickly attack and, therefore, the advantages of stainless steel are greatly diminished, not to say practically nullified. However, as stainless steel is an expensive product, it is absolutely necessary to produce silencers by means ensuring complete resistance to corrosion.
  • the elements constituting the silencer must be obtained by conventional methods but also with a reduced tooling because it is very expensive and it must be possible to reduce this tooling to the strict minimum in order to obtain an attractive cost price which , even if it is a little higher than the normal price, must, because of stainless steel, provide an economy since this material is much better resistant to the agents considered, that is to say to the acid gases and liquids leaving the internal combustion engine.
  • the present invention creates a muffler which can be manufactured from a reduced and standardized number of parts in order to be able to produce several types of muffler according to the power of the motors and their design so as to considerably limit the cost price in manufacturing. .
  • the exhaust pipe consists of the bottoms of two half-shells having transverse undulations in which the arched bottoms of intermediate elements in the form of a box rest, the vertically wedged wings of which terminate in wavy edges. into which semicircular corrugations of plates penetrate, then all of these elements are held in place in the two aforementioned half-shells by the peripheral crimping,
  • the plates have holes on the corrugations connecting the spaces delimited by the plates, the intermediate elements and the half-shells.
  • the silencer 1 is produced by two half-shells 2, 3 which are not necessarily symmetrical, the upper half-shell 2 possibly being slightly larger than the lower half-shell 3.
  • these half-shells include, on their periphery, flat edges 2a, 3a which overlap so as to allow crimping of the periphery of the silencer (see fig. 5 and 6),
  • the half-shells each contain three intermediate elements 5, one of which is shown in perspective in fig. 3. As can be seen, each intermediate element has the shape of a box with an arcuate bottom 5a and whose vertical wings .5b end in wavy edges 5c.
  • the arched bottom 5a normally takes place in corrugations or embossments of transverse stiffening 7 provided in the arched walls of the half-shells 1,2 (see fig. 4) and thus the corrugations 7 are immediately reinforced by the interca elements laires 5 which are obtained, like each half-shell, by stamping.
  • a shaped plate 10 is made to rest on the corrugated edges 5c of the elements 5.
  • the latter which is of rectangular shape, is present (see FIG. 1 ) three semi-circular undulations 11 which penetrate into the edges 5c of the intermediate elements.
  • these semi-circular undulations 11 have deformed zones in relief 12 intended to penetrate inside the hollowed-out part of the intermediate elements 5 (see FIG. 4).
  • the shaped plates 10 are pierced with a multitude of holes 13 allowing the communication of the interior of the conduits constituted by two superimposed plates 10 held by the intermediate elements 5 and the volumes delimited by the two superimposed half-shells 2, 3.
  • the holes 13 are drilled in greater or lesser numbers, just as it is possible to provide, in the deformed zones in relief 12, holes 12a enabling communication the tubes constituted by two plates 10 superimposed with the hollowed-out interior of the intermediate elements 5 (see fig. 5).
  • This allows to play on the interior volumes of the silencer by allowing the decompression then the circulation following a broken gas path which are thus relaxed and cooled and which can therefore exit through the terminal tube 20, towards the atmosphere, completely cooled and limiting noise as much as possible.
  • 21 designates the tube which brings the exhaust gases from the engine.
  • the number of holes 13 can vary as well as the number of holes 12a drilled in the deformed zones in relief 12 so that the gases exhaust come out through the end tube 20 in the best conditions.
  • the parts constituting the silencer that is to say the two half-shells 2, 3, the intermediate elements 5, the plates 10 are perfectly crimped on the edges 2a, 3a of the half-shells 2, 3 like this.
  • this kind of silencer made either of stainless steel or of a neighboring metallic material perfectly resistant to the agents considered,
EP82400117A 1981-01-23 1982-01-22 Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf Expired EP0057142B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8101209 1981-01-23
FR8101209A FR2498682B1 (fr) 1981-01-23 1981-01-23 Silencieux en matiere inoxydable pour pot d'echappement pour vehicule automobile

Publications (3)

Publication Number Publication Date
EP0057142A2 true EP0057142A2 (de) 1982-08-04
EP0057142A3 EP0057142A3 (en) 1982-08-11
EP0057142B1 EP0057142B1 (de) 1984-05-23

Family

ID=9254432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400117A Expired EP0057142B1 (de) 1981-01-23 1982-01-22 Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf

Country Status (5)

Country Link
US (1) US4456091A (de)
EP (1) EP0057142B1 (de)
DE (2) DE57142T1 (de)
ES (1) ES271007Y (de)
FR (1) FR2498682B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415064A1 (de) * 1984-04-21 1985-10-31 Fa. J. Eberspächer, 7300 Esslingen Verfahren zur herstellung eines schalldaempfers
FR2629864A1 (fr) * 1988-04-12 1989-10-13 Renault Silencieux pour moteur a explosion
EP0563843A1 (de) * 1992-03-31 1993-10-06 MARMITTE ZARA S.p.A. Verfahren zum Herstellen eines Kraftwagenschalldämpfers und danach hergestellter Schalldämpfer
CN111630193A (zh) * 2018-02-09 2020-09-04 贺利氏德国有限两合公司 湿法冶金加工贵金属-锡合金的方法

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002954A1 (en) * 1983-01-20 1984-08-02 Honda Motor Co Ltd Heat and sound insulating apparatus
USRE33370E (en) * 1986-11-25 1990-10-09 Ap Parts Manufacturing Company Stamp formed muffler
US4736817A (en) * 1986-11-25 1988-04-12 Ap Industries, Inc. Stamp formed muffler
US4700806A (en) * 1986-11-25 1987-10-20 Ap Industries, Inc. Stamp formed muffler
US4760894A (en) * 1987-06-11 1988-08-02 Ap Industries, Inc. Exhaust muffler with angularly aligned inlets and outlets
US4759423A (en) * 1987-06-11 1988-07-26 Ap Industries, Inc. Tube and chamber construction for an exhaust muffler
US4765437A (en) * 1987-10-07 1988-08-23 Ap Industries, Inc. Stamp formed muffler with multiple low frequency resonating chambers
US4909348A (en) * 1988-01-20 1990-03-20 Ap Parts Manufacturing Company Stamp formed exhaust muffler with conformal outer shell
US4821840A (en) * 1988-01-20 1989-04-18 Ap Parts Manufacturing Company Stamp formed exhaust muffler with conformal outer shell
US4836330A (en) * 1988-08-03 1989-06-06 Ap Industries, Inc. Plural chamber stamp formed muffler with single intermediate tube
US4924968A (en) * 1988-08-03 1990-05-15 Ap Parts Manufacturing Company Stamp formed muffler with reinforced outer shell
US4894987A (en) * 1988-08-19 1990-01-23 Ap Parts Manufacturing Company Stamp formed muffler and catalytic converter assembly
US4901815A (en) * 1988-10-18 1990-02-20 Parts Manufacturing Company Stamp formed mufflers
US4860853A (en) * 1988-12-20 1989-08-29 Ap Parts Manufacturing Company Stamp formed muffler with nonplanar array of tubes
US4901816A (en) * 1989-01-23 1990-02-20 Ap Parts Manufacturing Company Light weight hybrid exhaust muffler
US4905791A (en) * 1989-01-23 1990-03-06 Ap Parts Manufacturing Company Light weight hybrid exhaust muffler and method of manufacture
US4953660A (en) * 1989-02-09 1990-09-04 Tennessee Gas Pipeline Company Muffler with two part housing and flow tubes
US4928372A (en) * 1989-04-07 1990-05-29 Ap Parts Manufacturing Company Process for manufacturing stamp formed mufflers
FR2646207A1 (fr) * 1989-04-25 1990-10-26 Devil Silencieux modulaire
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly
US5004069A (en) * 1990-01-26 1991-04-02 Ap Parts Manufacturing Company Stamp formed muffler with transverse baffle tube
US4958701A (en) * 1990-03-26 1990-09-25 Ap Parts Manufacturing Company Stamp formed muffler with pocket-free baffle crease
US5173577A (en) * 1990-09-04 1992-12-22 Ap Parts Manufacturing Co. Stamp formed muffler with low back pressure
DE4041856A1 (de) * 1990-12-24 1992-06-25 Behr Gmbh & Co Vorrichtung zur katalytischen entgiftung von abgasen, vorzugsweise von verbrennungskraftmaschinen
US5198625A (en) * 1991-03-25 1993-03-30 Alexander Borla Exhaust muffler for internal combustion engines
US5248859A (en) * 1991-03-25 1993-09-28 Alexander Borla Collector/muffler/catalytic converter exhaust systems for evacuating internal combustion engine cylinders
US5229557A (en) * 1991-05-28 1993-07-20 Arvin Industries, Inc. Rigidified muffler assembly
US5280142A (en) * 1991-10-18 1994-01-18 Ap Parts Manufacturing Company Heat shielded exhaust system component
US5252788A (en) * 1992-04-10 1993-10-12 Ap Parts Manufacturing Co. Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes
US5428194A (en) * 1993-10-19 1995-06-27 Ap Parts Manufacturing Company Narrow width stamp formed muffler
US5448831A (en) * 1993-11-08 1995-09-12 Ap Parts Manufacturing Company Method of manufacturing a stamp formed muffler with hermetically sealed laminated outer shell
DE9400796U1 (de) * 1994-01-20 1994-04-07 Gillet Heinrich Gmbh Schalldämpfer
US5816361A (en) * 1994-03-02 1998-10-06 Ap Parts Manufacturing Company Exhaust mufflers with stamp formed internal components and method of manufacture
CA2123870A1 (en) * 1994-03-02 1995-09-03 James E. Gerber Exhaust mufflers with stamp formed internal components and method of manufacture
US5597986A (en) * 1995-02-27 1997-01-28 Ap Parts Manufacturing Company Stamp formed muffler with nested chambers
US5907904A (en) * 1996-03-22 1999-06-01 Ap Parts Manufacturing Company Method of manufacturing an exhaust muffler with stamp formed internal components
US5949035A (en) * 1997-03-24 1999-09-07 Arvin Industries, Inc. Stamp-formed muffler having a unitary inner cartridge
US6415889B1 (en) 1998-01-30 2002-07-09 Arvinmeritor, Inc. Stamped-formed muffler apparatus and assembly process
US6257367B1 (en) 1998-03-05 2001-07-10 Arvinmeritor, Inc. Stamp-formed muffler
US6199659B1 (en) 1998-03-05 2001-03-13 Arvin Industries, Inc. Stamp-formed muffler
US6135237A (en) * 1998-04-03 2000-10-24 Arvin Industries, Inc. Stamp-formed muffler
US6164412A (en) * 1998-04-03 2000-12-26 Arvin Industries, Inc. Muffler
US6341664B1 (en) 2000-01-13 2002-01-29 Goerlich's Inc. Exhaust muffler with stamp formed internal assembly
US7063182B2 (en) * 2003-08-14 2006-06-20 Arvinmeritor Technology, Llc Muffler baffle plate spacer formed from stock material
US7156202B2 (en) * 2004-04-05 2007-01-02 Mtd Products Inc Method and apparatus for venting exhaust gas from an engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012463A (en) * 1963-04-11 1965-12-08 Ford Motor Co Motor vehicle exhaust muffler
FR2363695A1 (fr) * 1976-08-31 1978-03-31 Nihon Radiator Co Pot d'echappement
FR2480350A1 (fr) * 1980-04-09 1981-10-16 Letang & Remy Ets Silencieux pour pot d'echappement en acier inoxydable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638756A (en) * 1969-12-30 1972-02-01 United States Steel Corp Vehicle muffler and method of assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012463A (en) * 1963-04-11 1965-12-08 Ford Motor Co Motor vehicle exhaust muffler
FR2363695A1 (fr) * 1976-08-31 1978-03-31 Nihon Radiator Co Pot d'echappement
FR2480350A1 (fr) * 1980-04-09 1981-10-16 Letang & Remy Ets Silencieux pour pot d'echappement en acier inoxydable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415064A1 (de) * 1984-04-21 1985-10-31 Fa. J. Eberspächer, 7300 Esslingen Verfahren zur herstellung eines schalldaempfers
FR2629864A1 (fr) * 1988-04-12 1989-10-13 Renault Silencieux pour moteur a explosion
EP0337877A1 (de) * 1988-04-12 1989-10-18 Regie Nationale Des Usines Renault Schalldämpfer für Explosionsmotoren
EP0563843A1 (de) * 1992-03-31 1993-10-06 MARMITTE ZARA S.p.A. Verfahren zum Herstellen eines Kraftwagenschalldämpfers und danach hergestellter Schalldämpfer
CN111630193A (zh) * 2018-02-09 2020-09-04 贺利氏德国有限两合公司 湿法冶金加工贵金属-锡合金的方法
CN111630193B (zh) * 2018-02-09 2022-05-03 贺利氏德国有限两合公司 湿法冶金加工贵金属-锡合金的方法

Also Published As

Publication number Publication date
FR2498682B1 (fr) 1986-08-08
US4456091A (en) 1984-06-26
EP0057142A3 (en) 1982-08-11
FR2498682A1 (fr) 1982-07-30
EP0057142B1 (de) 1984-05-23
ES271007Y (es) 1984-03-01
DE57142T1 (de) 1983-04-14
ES271007U (es) 1983-08-16
DE3260168D1 (en) 1984-06-28

Similar Documents

Publication Publication Date Title
EP0057142B1 (de) Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf
FR2502693A1 (fr) Silencieux pour moteurs de vehicules automobiles
FR2550820A1 (fr) Dispositif d'echappement pour moteur a combustion interne
EP3311095B1 (de) Wärmetauscher und verfahren zur herstellung davon
FR2690233A1 (fr) Tube d'échangeur de chaleur à dispositif perturbateur intégré.
FR2751029A1 (fr) Silencieux de pot d'echappement
EP0057623A2 (de) Abgassschalldämpfer einer Wärmekraftmaschine
FR2663985A1 (fr) Silencieux a logement en une piece pour vehicule automobile, conduit faisant partie du silencieux et procede de sa fabrication.
EP0284466B1 (de) Auspuffrohrverbindungsvorrichtung und mit dieser Vorrichtung ausgestatteter Verbrennungsmotor
EP1001239B1 (de) Rohrbündelwärmetauscher mit zylindrischem Gehäuse
WO2006018581A1 (fr) Element de ligne d'echappement
FR2798992A1 (fr) Dispositif d'assemblage d'une piece rapportee sur un echangeur de chaleur, en particulier de vehicule automobile
FR2703297A1 (fr) Elément à structure en nid d'abeille courbe.
EP1957927B1 (de) Verstärkter sammler für den sammelbehälter eines wärmetauschers und einen solchen sammler umfassender sammelbehälter
FR2774726A1 (fr) Joint metallique d'etancheite pour ligne d'echappement de gaz de combustion de moteurs thermiques
FR2807102A1 (fr) Boitiers pour des catalyseurs de gaz d'echappement
EP1015838A1 (de) Wärmetauscher für kraftfahrzeuge und verfahren zu deren herstellung
EP3863892B1 (de) Kraftfahrzeugkarosserie mit einem lautsprechermodul
FR2732454A1 (fr) Echangeur de chaleur, notamment pour vehicule automobile
FR3074220A1 (fr) Silencieux d’echappement
FR2615245A1 (fr) Silencieux avec canaux a ecoulement inverse pour les gaz d'echappement d'un vehicule automobile
WO2006061489A1 (fr) Volume d'echappement
FR1450442A (fr) Panneau pour faux-plafonds
FR2732076A1 (fr) Installation d'aspiration d'air pour moteurs a combustion interne
FR2682158A1 (fr) Silencieux de ligne d'echappement pour vehicule automobile.

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19820125

AK Designated contracting states

Designated state(s): DE GB IT

AK Designated contracting states

Designated state(s): DE GB IT

ITCL It: translation for ep claims filed

Representative=s name: STUDIO ING. ALFREDO RAIMONDI

DET De: translation of patent claims
ITF It: translation for a ep patent filed

Owner name: STUDIO ING. ALFREDO RAIMONDI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INDUSTELER S.A.

AK Designated contracting states

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 3260168

Country of ref document: DE

Date of ref document: 19840628

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

Ref country code: DE

Payment date: 19850208

Year of fee payment: 4

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

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19871001

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

Ref country code: GB

Effective date: 19881121