EP1416148B1 - Pièce d'atténuation de bruit pour un tuyau d'admission d'air - Google Patents

Pièce d'atténuation de bruit pour un tuyau d'admission d'air Download PDF

Info

Publication number
EP1416148B1
EP1416148B1 EP20030021915 EP03021915A EP1416148B1 EP 1416148 B1 EP1416148 B1 EP 1416148B1 EP 20030021915 EP20030021915 EP 20030021915 EP 03021915 A EP03021915 A EP 03021915A EP 1416148 B1 EP1416148 B1 EP 1416148B1
Authority
EP
European Patent Office
Prior art keywords
tube
inlet
connection
air intake
inlet member
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 - Fee Related
Application number
EP20030021915
Other languages
German (de)
English (en)
Other versions
EP1416148A2 (fr
EP1416148A3 (fr
Inventor
Volker Wenke
Thomas Spinler
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
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 Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1416148A2 publication Critical patent/EP1416148A2/fr
Publication of EP1416148A3 publication Critical patent/EP1416148A3/fr
Application granted granted Critical
Publication of EP1416148B1 publication Critical patent/EP1416148B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01N13/1844—Mechanical joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust

Definitions

  • the invention relates to a sound-reducing component for an air duct for the internal combustion engine according to the preamble of patent claim 1.
  • silencers are set in different versions and materials as an intermediate piece in the conduit between two pipe sections.
  • a muffler for the intake passage of an internal combustion engine which is arranged between two Heilansaugrohrabroughen. It consists essentially of the intake manifold made of an elastomer, which has at its two ends connecting sleeves for connection to the Heilansaugrohrabroughe.
  • the air-conveying intake pipe is surrounded by a damping component in the damping region to form an annular space and has openings in the region of the annular space.
  • a device for airborne sound reduction of flow noise of eg turbochargers on internal combustion engines which is composed of an outer tube and inner tube.
  • the outer shell is shaped so that either only one chamber or a series of chambers with partitions and two connections are formed. It is described that the required fastening systems can be attached directly to these connections.
  • Inside the outer shell is the slotted inner tube.
  • a sound-reducing component for an air duct which has a damping element as an acoustic filter.
  • the acoustic filter has an inlet extending within a tube end to form an absorption clip.
  • the acoustic filter can be firmly connected to the tube.
  • a disadvantage of the known sound-reducing component is that no measures are taken to ensure a quick and tight connection of the tube or the damping element to a subsequent component.
  • the object of the present invention is therefore to provide a component for reducing noise emissions for an air guide tube, so that the air guide tube can be connected quickly and tightly to the internal combustion engine, in particular the turbocharger.
  • connection / damping unit is not as an intermediate piece between two pipe parts of the air duct, but as a connecting piece directly connected to the internal combustion engine, in particular a turbocharger.
  • the connection / damping unit is made in one piece and has a quick coupling as a connection element and an inlet as a damping element. The inlet is inserted from the outside into the connection-side pipe end to form an annular space until the quick-action coupling abuts and is fastened to the abutting surface of the pipe end.
  • the absorption chamber is formed between the particular correspondingly contoured inlet and the tube inner wall of the air guide tube and thus close to the connection.
  • the connection / damping unit and / or the air guide tube are in particular made of the same metallic material as steel, in particular stainless steel, or aluminum, and can withstand even the high temperatures and pressure peaks in the immediate vicinity of the turbocharger.
  • connection / damping unit Due to the one-piece design of the connection / damping unit, the number of components to be connected and thus the necessary connection points or welds significantly reduced, which increases productivity and reduces the risk of leakage. This results in higher strengths of the entire air duct tube and the connection / damping unit.
  • connection / damping unit air duct tube can be quickly and tightly connected to the turbocharger due to the quick coupling.
  • the damping element is integrated in the connecting piece, the further guide tube can be made flexible beyond the damping region, which relates in particular to its three-dimensional design for the space available individually in the engine compartment. Small and complicated construction spaces can be optimally utilized.
  • the material wall thickness of the tube can be adapted to different strength requirements quickly and without complicated design changes.
  • a preferred embodiment of the inlet of the connection / damping unit provides that on the one hand it has a first - preferably hollow-cylindrical - section with perforations or openings whose cross section is smaller than the cross section of the pipe end. On the other hand, it has adjacent thereto second sections. These second sections are widened in an annular manner such that they come into fluid-tight contact with the inner wall of the air guide tube and thus act as a flow barrier. A portion of the air flow is directed through the openings of the first section into the absorption chamber, which is formed in the annular space between the first inlet section and the outer tube wall.
  • connection / damping unit is manufactured in one piece and comprises the quick coupling and the inlet.
  • the integrally produced combination element comprises an inlet, with which a plurality of absorption chambers can be formed.
  • first and second sections of the inlets are formed integrally in each case in alternation.
  • the integrally manufactured combined element of quick coupling and inlet, starting from a base unit can be extended in modules, with one or more inlet projections, each comprising at least one first and second inlet section, as required.
  • the characteristics of the damping may be determined by the length and / or shape of the first inlet portions, i. the portions containing the openings, as well as the second portions and thus the resulting absorption chamber shapes and volumes are adjusted.
  • the quick coupling itself is a flared tube adapted to the geometry of the neck of the turbocharger.
  • the quick coupling also performs a sealing function by means of an integrated sealing ring.
  • the proposed component for the reduction of acoustic emission in the form of a connection piece can in principle be combined with any air duct with a matched diameter.
  • the air guide tube may have over its length an arbitrarily curved three-dimensional contour and / or an arbitrary cross-section, which increases its variability with respect to the installation space.
  • the inlet side surrounds the inlet as an outer tube.
  • the air guide tube is preferably hollow cylindrical over the damping region. It can also be contoured and form the absorption chambers together with the inlet.
  • Fig. 1 shows schematically in the overall view of an air duct 1 with integrated Schallresonator or damping element 2.
  • the damping element 2 is part of a attached to the end 3 of the pipe connection / damping unit 4, which simultaneously has a quick coupling 5 for direct connection to a turbocharger (not shown) ,
  • the connection / damping unit 4 or the connecting piece thus assumes the connection and damping function.
  • the air guide tube 1 itself can be either the supply channel for fresh air or the air charging tube and / or the discharge channel for exhaust gases.
  • the noise damper or the damping element 2 is inserted through an inlet 6 inserted into the connection-side pipe end 3 together with the pipe inner wall 7 surrounding it (see also FIGS. 2 and 3 ) educated.
  • absorption chambers 9, 10 are formed which are fluid-conductively connected to the air flow (compare arrow P).
  • the dashed arrow makes it clear that the air duct can also serve as a discharge channel for gases. Since the damping element 2 or the inlet 6 is connected on the connection side in the form of a connecting piece with the air duct 1, the air duct 1 beyond the damping region 11 can take on any possible design.
  • the air duct 1 shows a possible installation of the air duct 1 with a corresponding bracket 12.
  • the air duct 1 is bent in the embodiment shown, for example, along its length serpentine, to be passed to other components in the engine compartment of a motor vehicle over.
  • connection / damping unit 4 Details of the connection / damping unit 4 can be seen.
  • the quick coupling 5 and the inlet 6, which forms two absorption chambers 9, 10, are made in one piece.
  • the inlet 6 itself is composed of first and second inlet sections 8, 13. These are arranged alternately next to each other.
  • the first sections 8 are pipe sections, along the circumference in rows perforations 14 and holes (see also Fig. 6 ) are introduced for the gas exchange with the absorption chambers 9, 10.
  • the perforations 14 may take a variety of forms, such as circular or oval openings or slots. Depending on the configuration of the perforations 14 and the cross-sectional configuration of the absorption chambers 9, 10, certain frequency ranges of the vibrations generated by the gas flow can be damped. In the illustrated embodiment, to which the invention is not limited, the perforated portion 8 of the first absorption chamber 9 is formed longer than that of the second absorption chamber 10.
  • the pipe sections 8 are hollow cylindrical in the example shown and have a cross-section which is smaller than the cross-section of the connection-side pipe end 3.
  • the perforated pipe sections 8 are each surrounded by second pipe sections 13, so that the absorption chambers 9, 10 are limited. These second sections 13 are expanded so far in the form of a ring that they come to rest against the inner wall 7 of the air guide tube 1 in a fluid-tight manner or terminate therewith.
  • the quick coupling 5 has a widened opening portion 15 for frictional engagement with the neck (not shown) on the turbocharger.
  • On the inlet side follows an over its cross section uniformly shaped portion 16 in the sense of a groove which receives an O-ring seal.
  • the inlet-side part 17 of the quick-action coupling 5 merges into an annular section 18, which at the same time serves as the absorption chamber boundary as well as the connecting surface for the pipe end 3, which is welded to the quick-action coupling 5.
  • the connection point to the quick coupling 5 of the pipe end is good from the Fig. 5 seen.
  • connection / damping unit Starting from a tube which has approximately a diameter which corresponds to a later average diameter of the connection / damping unit, the side of the later quick coupling 5 is widened by means of a mandrel and the side of the later insert 6 by rolling and compressing the corresponding sections reduced or enlarged in cross section. Subsequent hydroforming allows calibration to be performed.
  • the perforations 14 in the sections 8 of the first type of the inlet 6 are introduced either by laser welding or by reduced costs by punching. In this case, adjacent holes can be introduced in a single operation over several cylinders.
  • an inlet 6, for example, with two absorption chambers 9, 10 are made in one piece with the quick coupling 5. It is also possible to produce the quick coupling in one piece with an inlet with only one absorption chamber and to apply further inlet extensions as needed to the base inlet.
  • an inlet extension 19 would be firmly attached to the base unit 20 of quick coupling and first absorption chamber, preferably by a weld.
  • Such an inlet extension 19 is composed of a perforated first inlet section 8 and two expanded inlet sections 13.
  • a frusto-conical half shell 21 of the extension 19 is welded to the corresponding half shell 22 of the base unit 20 to form a widened inlet section 13.
  • connection / damping unit as well as the air guide tube can be made of all temperature-resistant metals. Optimum sound absorption is achieved directly in the vicinity of the turbocharger in a small installation space and a small number of connecting seams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Supercharger (AREA)

Claims (8)

  1. Pièce d'atténuation de bruit pour un tuyau d'admission d'air (1) pour un moteur à combustion interne, en particulier pour un turbocompresseur, d'un véhicule automobile, qui, en tant que canal d'admission d'air frais et / ou de canal de sortie des gaz d'échappement, est raccordée au moteur à combustion, en particulier au turbocompresseur, et ladite pièce d'atténuation de bruit présentant au moins une chambre d'absorption (9, 10), qui, conduisant le fluide, est reliée au courant d'air (P), un élément d'atténuation (2), avec un insert d'admission (6), glissé dans une extrémité de tuyau (3), côté raccordement, étant prévu, la chambre d'absorption (9, 10) étant formée entre l'insert d'admission (6) et la paroi intérieure (7) du tuyau, et une unité de raccordement / d'atténuation (4) métallique, fabriquée d'une pièce, pouvant être fixée au tuyau (1), l'insert d'admission (6) étant relié d'une pièce avec un raccord rapide (5) pour former l'unité de raccordement / d'atténuation (4) métallique, fabriquée d'une pièce, caractérisée en ce que le raccord rapide (5) est un tuyau avec bague d'étanchéité intégrée, qui est élargi par rapport au diamètre de la première section (8) de l'insert d'admission (6), ainsi que par rapport au diamètre de extrémité de tuyau (3), côté raccordement.
  2. Pièce selon la revendication 1,
    caractérisée en ce que
    l'insert d'admission (6) présente une première section (8) avec des perforations (14) et une deuxième section (13) avoisinante, élargie en forme d'anneau, qui, étanche au fluide, vient porter contre la paroi intérieure (7) du tuyau d'admission d'air (1), et en ce que la chambre d'absorption (9, 10) est formée entre la deuxième section (13) et le raccord rapide (5) ou une autre deuxième section (13).
  3. Pièce selon revendication 1 ou 2,
    caractérisée en ce que
    l'insert d'admission (6) de l'unité de raccordement / d'atténuation (4) fabriquée d'une pièce comprend au moins un appendice (19), qui, pouvant être relié à l'insert d'admission, comprend des premières et deuxièmes sections (8, 13).
  4. Pièce selon revendication 2 ou 3,
    caractérisée en ce que
    les premières sections (8) et les deuxièmes sections élargies (13) de l'insert d'admission (6) et / ou de l'appendice (19) de l'insert d'admission (6) présentent des longueurs et / ou des formes différentes pour le réglage des volumes de chambre d'absorption et / ou des formes de chambre d'absorption désirés.
  5. Tuyau d'admission d'air (1) pour le moteur à combustion interne d'un véhicule automobile, destiné à être raccordé, en tant que canal d'admission d'air frais et / ou en tant que canal de sortie des gaz d'échappement, au moteur à combustion inter, en particulier au turbocompresseur, d'un véhicule automobile, avec une pièce d'atténuation de bruit selon l'une des revendications 1 à 4.
  6. Tuyau d'admission d'air selon la revendication 5,
    caractérisé en ce que
    ledit tuyau d'admission d'air (1) présente, sur sa longueur, n'importe quel contour courbé, tridimensionnel et / ou n'importe quelle section transversale.
  7. Tuyau d'admission d'air selon revendication 5 ou 6,
    caractérisé en ce que
    ledit tuyau d'admission d'air (1) est conçu sous la forme d'un cylindre creux et ou avec un contour correspondant aux chambres d'absorption respectives, déterminées par l'insert d'admission (6).
  8. Tuyau d'admission d'air selon l'une des revendications 5 à 7,
    caractérisé en ce que
    la surface d'about de l'extrémité de tuyau (3) du tuyau d'admission d'air (1), côté raccordement, est reliée au raccord rapide (5) par l'intermédiaire d'un joint soudé.
EP20030021915 2002-11-04 2003-09-29 Pièce d'atténuation de bruit pour un tuyau d'admission d'air Expired - Fee Related EP1416148B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002151501 DE10251501A1 (de) 2002-11-04 2002-11-04 Schallreduzierendes Bauteil für ein Luftführungsrohr
DE10251501 2002-11-04

Publications (3)

Publication Number Publication Date
EP1416148A2 EP1416148A2 (fr) 2004-05-06
EP1416148A3 EP1416148A3 (fr) 2006-02-15
EP1416148B1 true EP1416148B1 (fr) 2009-06-17

Family

ID=32087340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030021915 Expired - Fee Related EP1416148B1 (fr) 2002-11-04 2003-09-29 Pièce d'atténuation de bruit pour un tuyau d'admission d'air

Country Status (2)

Country Link
EP (1) EP1416148B1 (fr)
DE (2) DE10251501A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2737014C1 (ru) * 2020-05-29 2020-11-24 Акционерное общество «АВТОВАЗ» Двигатель внутреннего сгорания с системой впуска воздуха

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042869A1 (de) * 2007-09-08 2009-03-12 Volkswagen Ag Vorrichtung zur Reduzierung von Geräuschemissionen
DE102008015353A1 (de) * 2008-03-22 2009-09-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ladeeinrichtung
AT509691B1 (de) * 2010-03-18 2013-09-15 Avl List Gmbh Brennkraftmaschine mit einer verbindungsanordnung für einen zylinderkopf
WO2020154295A1 (fr) 2019-01-21 2020-07-30 Toledo Molding & Die, Inc. Atténuateur de hautes fréquences à fibres en ligne
FR3092361B1 (fr) * 2019-02-05 2021-05-21 Akwel Résonateur acoustique
US11448171B1 (en) 2021-06-25 2022-09-20 Ford Global Technologies, Llc Hot-charge duct for turbocharger system
US11912210B2 (en) 2021-09-27 2024-02-27 Mann+Hummel Gmbh Space-saving broadband resonator having a resonator insert

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052173B (de) * 1953-03-24 1959-03-05 Vladimir Jansa Auspuffsystem fuer Motorradmotoren
DE19504223A1 (de) * 1995-02-09 1996-08-14 Volkswagen Ag Schalldämpfer für den Ansaugkanal einer Brennkraftmaschine
US5839405A (en) * 1997-06-27 1998-11-24 Chrysler Corporation Single/multi-chamber perforated tube resonator for engine induction system
DE29900101U1 (de) * 1999-01-07 2000-02-10 Stihl Maschf Andreas Abgasschalldämpfer
DE19943246B4 (de) * 1999-09-10 2006-06-14 Daimlerchrysler Ag Schalldämpfer zur Herabminderung der Luftgeräusche im Ansaugstrang von Brennkraftmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2737014C1 (ru) * 2020-05-29 2020-11-24 Акционерное общество «АВТОВАЗ» Двигатель внутреннего сгорания с системой впуска воздуха

Also Published As

Publication number Publication date
EP1416148A2 (fr) 2004-05-06
DE50311602D1 (de) 2009-07-30
DE10251501A1 (de) 2004-05-19
EP1416148A3 (fr) 2006-02-15

Similar Documents

Publication Publication Date Title
DE102010019959A1 (de) Schalldämpfer
DE19504223A1 (de) Schalldämpfer für den Ansaugkanal einer Brennkraftmaschine
DE10046610C1 (de) Fest-Los-Lagerung eines Katalysator-Trägerkörpers
DE10125121A1 (de) Abgaskrümmer
DE10304326A1 (de) Schalldämpferanordnung
EP1416148B1 (fr) Pièce d'atténuation de bruit pour un tuyau d'admission d'air
EP3198197B1 (fr) Ensemble tuyau d'échappement d'appareil de chauffage comprenant un silencieux intégré et procédé de production dudit ensemble
EP3623593B1 (fr) Silencieux pour une conduite de gaz d'échappement d'un véhicule automobile et véhicule automobile doté d'un silencieux
DE3922667C2 (de) Vorrichtung zur katalytischen Entgiftung zur Entrußung und/oder zur Schalldämpfung von Verbrennungsmotor-Abgasen mit doppelwandigem Gehäuse
DE10216272A1 (de) Abgasbehandlungsanordnung für eine Brennkraftmaschine
EP3032063B1 (fr) Tubulure d'échappement
EP1895120B2 (fr) Boîtier pour un composant de purification des gaz d'échappement formant un joint de connexion avec une section d'un tuyau d'échappement.
DE102007042869A1 (de) Vorrichtung zur Reduzierung von Geräuschemissionen
EP1109994B1 (fr) Dispositif de stabilisation d'ecoulement dans une conduite d'echappement de moteur a combustion interne
EP1375848B1 (fr) Dispositif permettant de réduire les émissions sonores et méthode pour la réalisation d'un tel dispositif
DE10254631B4 (de) Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine
DE6608356U (de) Abgasanlage mit schalldaempfer.
EP1367234A1 (fr) Conduit de gaz d'échappement à paroi double avec une bride
DE19923736C1 (de) Abgasführung für in Kraftfahrzeugen, insbesondere Personenkraftwagen, als Antriebsquelle eingesetzte Brennkraftmaschinen
DE10359062A1 (de) Haubenkrümmer
EP0787248B1 (fr) Systeme d'echappement pour moteur a combustion interne et procede de production du collecteur d'un systeme d'echappement
EP3828396B1 (fr) Silencieux de gaz d'échappement
DE102005044442B4 (de) Abgasschalldämpfer
DE102004060775B4 (de) Modular aufgebaute Abgasanlage für ein Kraftfahrzeug
DE202016106227U1 (de) Abgasanlage und Katalysator für eine Abgasanlage

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

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20060425

AKX Designation fees paid

Designated state(s): CZ DE FR

17Q First examination report despatched

Effective date: 20061220

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CZ DE FR

REF Corresponds to:

Ref document number: 50311602

Country of ref document: DE

Date of ref document: 20090730

Kind code of ref document: P

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: CZ

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: 20090617

26N No opposition filed

Effective date: 20100318

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100531

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: 20090930

Ref country code: DE

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

Effective date: 20100401