EP3734033B1 - Silencieux de gaz d'échappement pour une installation d'échappement d'un moteur à combustion interne - Google Patents

Silencieux de gaz d'échappement pour une installation d'échappement d'un moteur à combustion interne Download PDF

Info

Publication number
EP3734033B1
EP3734033B1 EP20164452.3A EP20164452A EP3734033B1 EP 3734033 B1 EP3734033 B1 EP 3734033B1 EP 20164452 A EP20164452 A EP 20164452A EP 3734033 B1 EP3734033 B1 EP 3734033B1
Authority
EP
European Patent Office
Prior art keywords
resonator
chamber
partition
pipe
flow volume
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.)
Active
Application number
EP20164452.3A
Other languages
German (de)
English (en)
Other versions
EP3734033B8 (fr
EP3734033A1 (fr
Inventor
Nicolas Mettenleiter
Thomas Uhlemann
Frank Berkemer
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology 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 Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Publication of EP3734033A1 publication Critical patent/EP3734033A1/fr
Application granted granted Critical
Publication of EP3734033B1 publication Critical patent/EP3734033B1/fr
Publication of EP3734033B8 publication Critical patent/EP3734033B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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
    • F01N13/007—Apparatus used as intake or exhaust silencer
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/04—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet only in one 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/10—Two or more expansion chambers in parallel
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/14—Dead or resonance chambers connected to gas flow tube by relatively short side-tubes
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers

Definitions

  • the present invention relates to an exhaust silencer for an exhaust system of an internal combustion engine.
  • Helmholtz resonators In order to be able to influence the sound damping behavior of exhaust silencers or to be able to predefine them in a defined manner, it is known to integrate Helmholtz resonators into such exhaust silencers.
  • a Helmholtz resonator comprises in an exhaust gas silencer a generally closed resonator volume in a resonator chamber that is not traversed by the exhaust gas flow passing through the exhaust gas silencer and which is open via a resonator neck to the flow volume inside a silencer housing through which the exhaust gas flow flows.
  • the volume of the resonator chamber and the dimensions of the resonator neck in particular the cross-sectional area of an opening in the resonator neck and the length of the resonator neck, it is possible to tune to particularly critical or relevant frequencies to be attenuated.
  • an exhaust silencer according to the preamble of claim 1 is known.
  • an exhaust gas inlet and an exhaust gas outlet are open to a flow volume formed between two resonator chambers.
  • a resonator neck is provided which is provided by a respective tube and via which a respective resonator chamber is open to the flow volume.
  • two Helmholtz resonators can be constructed with a single resonator tube, whereby each of these two Helmholtz resonators can be tuned to a particularly critical frequency by suitable dimensioning, i.e. the two Helmholtz resonators can be provided with different resonance frequencies.
  • the silencer housing can comprise a circumferential wall elongated in the direction of a longitudinal axis of the housing and an end wall at both axial end regions of the circumferential wall and at least two partition walls between the end walls, the first resonator chamber being separated from the flow volume by a first partition wall and the second resonator chamber by a second partition wall is separated from the flow volume.
  • the flow volume is to be regarded as the volume through which the exhaust gas flows in the interior of the silencer housing and which is provided in one or more chambers or pipes through which the exhaust gas flow flows.
  • the volume of the resonator chambers which is basically open to this flow volume via the resonator necks and into which exhaust gas can in principle also enter via the associated resonator necks, is nevertheless not part of the flow volume.
  • the flow volume can comprise a flow chamber formed between the first partition and the second partition.
  • This flow chamber can, for example, be the only chamber provided in the interior of the muffler housing and through which the exhaust gas flow to be conducted through the exhaust muffler can flow.
  • a plurality of partition walls formed via pipes and / or with openings chambers communicating with one another and through which the exhaust gas flow can flow may be provided.
  • the first resonator neck penetrate the first partition or / and be open to the first resonator chamber in the area of the first partition, and that the second resonator neck penetrate the second partition and / and in the area the second partition is open to the second resonator chamber.
  • the first partition next to the opening provided by the first resonator neck does not have an opening providing a connection between the flow volume and the first resonator chamber, and that the second partition next to the opening provided by the second resonator neck has no opening providing a connection between the flow volume and the second resonator chamber.
  • the resonator tube should have at least one connection in its section extending in the flow volume in a tube wall of the resonator tube having pipe wall opening between the flow volume and a pipe interior of the resonator pipe.
  • the resonator tube has an opening section with a plurality of tube wall openings in its section extending in the flow volume.
  • the effect of the resonator tube provided in association with two Helmholtz resonators as two resonator necks can be achieved, for example, by the resonator tube in a first length region adjoining the opening section at a first axial end region of the opening section provides the first resonator neck and provides the second resonator neck in a second length region adjoining the opening portion at a second axial end region of the opening section.
  • the first resonator chamber can be formed between one of the two end walls and the first partition wall
  • the second resonator chamber can be formed between the other of the two end walls and the second partition wall
  • Such a compact structure can be supported by the fact that the resonator tube penetrates the flow chamber and is open with a first axial end region to the first resonator chamber and / or lies in the first resonator chamber and is open with a second axial end region to the second resonator chamber and / or in the second resonator chamber, and that the resonator tube has the at least one tube wall opening in its section extending in the flow chamber.
  • the exhaust gas inlet comprises an inlet pipe which is open in the area of one of the two end walls and which provides an inlet channel
  • the exhaust gas outlet is in the area the other of the two end walls comprises an outlet pipe which is open and which provides an outlet channel
  • the inlet pipe can be passed through one of the two resonator chambers and the outlet pipe can be passed through the other of the two resonator chambers.
  • the inlet pipe nor the outlet pipe is open to the resonator chamber through which it passes, so that the resonator chambers actually only have a connection to the flow volume through the resonator necks assigned to them.
  • the inlet pipe can be open to the flow volume in the area of the intermediate wall separating one of the two resonator chambers from the flow volume
  • the outlet pipe can be open to the flow volume in the area of the intermediate housing wall separating the other of the two resonator chambers from the flow volume.
  • the first resonator chamber formed between one of the two end walls and the first partition wall and the flow chamber formed between the first partition wall and the second partition wall can be arranged in succession in the direction of the longitudinal axis of the housing and the second resonator chamber formed between the second intermediate wall and the other of the two end walls may be provided.
  • the two Helmholtz resonators provided therein and cooperating or constructed with a single resonator tube can be easily tuned to different resonance frequencies by the first resonator chamber and the second resonator chamber having different resonator chamber volumes and / or the first resonator neck and the second resonator neck have mutually different resonator neck lengths.
  • the resonator tube could also have different cross-sectional dimensions in the areas in which the resonator tube provides the two resonator necks in order to thereby also have an influence on the resonance frequencies or to be able to provide different resonance frequencies.
  • the resonator tube have a constant cross-sectional dimension over its entire length for a design that is particularly easy to realize structurally.
  • an exhaust silencer is generally designated 10.
  • the exhaust silencer 10 comprises a silencer housing 12 with a circumferential wall 14 which is elongated in the direction of a longitudinal axis A of the housing and is, for example, essentially cylindrical and, for example, constructed with sheet metal material and / or a form fit connected in a gas-tight manner.
  • a first intermediate wall 24 and a second intermediate wall 26 are connected to the peripheral wall 14 in an essentially gas-tight manner, for example by a material seal.
  • the end walls 20, 22 and the intermediate walls 24, 26 are also preferably made of sheet metal.
  • An exhaust gas inlet, generally designated 28, comprises an inlet pipe 30, which is connected to the end wall 20 provided at the axial end region 16 of the circumferential wall 14 on the one hand and the first intermediate wall 24 on the other hand, for example by a material seal, essentially gas-tight and in its interior an inlet channel leading to a flow chamber 32 34 provides.
  • the inlet pipe 30 thus forms an inlet opening of the exhaust gas inlet 28 that is open to the inlet channel 34.
  • the inlet pipe 30 is open to the flow chamber 32. It should be pointed out that in the illustrated embodiment, the inlet pipe 30 ends in the area of the first partition 24. This could also extend beyond the first partition 24 into the flow chamber 32.
  • An exhaust gas outlet generally designated 36, comprises an outlet pipe 38 connected in a gastight manner to the second partition 26 on the one hand and the end wall 22 provided on the axial end region 18 of the peripheral wall 14 on the other hand 10 can leave.
  • the outlet pipe 38 is with its outlet channel 40 to the environment or an area of an exhaust system that follows in the flow direction.
  • the outlet pipe 38 is connected to the latter or is open to the flow chamber 32. It should also be pointed out here that, contrary to what is shown, the outlet pipe 38 could extend beyond the second end wall 26 into the flow chamber 32.
  • both the inlet pipe 30 and the outlet pipe 38 can extend beyond the end walls 20 and 22 connected to them out of the muffler housing 12 in order to implement an easier connection to areas of an exhaust system following upstream or downstream be able.
  • the inlet channel 34, the outlet channel 40 and the flow chamber 32 provide a flow volume 42 through which the exhaust gas to be conducted through the exhaust silencer 10 can flow.
  • two resonator chambers 44, 46 are integrated into the exhaust gas silencer 10.
  • the first resonator chamber 44 which is essentially axially delimited by these walls, is assigned to a first Helmholtz resonator 48.
  • a second Helmholtz resonator 50 is assigned essentially through this axially delimited second resonator chamber 46.
  • the inlet pipe 30 passes through the first resonator chamber 44, the inlet pipe 30 not providing an opening that is open to the first resonator chamber 44, that is to say it is closed off from the latter.
  • the outlet pipe 38 passes through the second resonator chamber 46 and likewise has no opening open to it, so that the outlet pipe 38 is basically closed off from the second resonator chamber 46.
  • a resonator tube generally designated 52 In the interior of the muffler housing 12, a resonator tube generally designated 52 is provided.
  • the resonator tube 52 basically has three length regions 54, 56, 58 adjoining one another in the direction of the housing longitudinal axis A.
  • the length area 54 of the resonator tube 52 which is positioned approximately in the mid-length area of the resonator tube 52, constitutes an opening section 60 ready, in which the resonator tube 52 or a tube interior formed therein is open to the flow chamber 32 or to the flow volume 42 via a plurality of tube wall openings 64 provided in a tube wall 62 of the resonator tube 52.
  • the pipe wall openings 64 can for example be arranged in a plurality of rows of openings extending in the direction of the housing longitudinal axis A in a substantially regular opening pattern and thus a substantially uniformly acting connection between the pipe interior and the flow chamber 32 in the circumferential direction of the pipe wall 62 of the resonator pipe 52 manufacture.
  • the axial end region 66 of the opening section 60 closer to the first partition wall 24 forms a first resonator neck 68 of the first Helmholtz resonator 48.
  • the length region 56 or the first resonator neck 68 provided by this length region 56 penetrates an opening in the first Intermediate wall 24 and is preferably connected to this in a substantially gas-tight manner.
  • a first axial end region 70 of the resonator tube 52 which in the example shown extends beyond the first partition wall 24 and is positioned and engages into the first resonator chamber 44, the resonator tube 52 or the first resonator neck 68 is open to the first resonator chamber 44 and is thus in Connection with this essentially the first Helmholtz resonator 48 ready.
  • the first partition wall 24 has no further openings that establish a connection between the first resonator chamber 24 and the flow volume 42 or the flow chamber 32 of the same.
  • the length region 58 forms a second resonator neck 74 and is open to the second resonator chamber 26 in the region of a second axial end region 76 of the resonator tube 52.
  • the second length region 58 extends beyond the second end wall 26 and engages in the second resonator chamber 46 and in connection therewith essentially provides the second Helmholtz resonator 50.
  • the second partition 26 also has no further openings which provide a connection between the second resonator chamber 46 and the flow volume 42 or the flow chamber 32.
  • the volumes of the two resonator chambers 44, 46 which volumes are essentially limited by the end walls 20, 22 and intermediate walls 24, 26 axially delimiting the resonator chambers 44, 46 and the peripheral wall 14, and of which the inlet pipe 30 or
  • the volume occupied by the outlet pipe 38 is to be subtracted, and the appropriately suitable dimensioning of the resonator necks 68, 74 allows the resonance frequencies of the two Helmholtz resonators 48, 50 to be fixed or matched to particularly critical frequencies in a defined manner.
  • the resonator tube 52 is designed in the direction of the housing longitudinal axis A with an essentially constant cross-sectional dimension, in particular also with a constant inner diameter, so that an influence on the respective resonance frequency of the Helmholtz resonators in the area of Resonator necks 68, 74 are taken essentially by suitable selection of the length thereof.
  • This in turn can take place in that the opening section 54 is positioned appropriately between the two axial end regions 70, 76 of the Resonator 52, however, is arranged within the axial extent of the resonator chamber 32 and is also provided with a suitable extension in the direction of the longitudinal axis A of the housing.
  • the two resonator chambers 44, 46 are each arranged axially directly adjacent to the flow volume 42 through which the resonator tube 52 passes, in particular the flow chamber 32, in the construction according to the invention, on the one hand, an axially compact design is achieved and, on the other hand, the possibility is created that the only one Resonator tube 52 which can provide the resonator necks 68, 74 assigned to the two Helmholtz resonators 48, 50.
  • the flow volume has several flow chambers.
  • a further partition could be provided between the two partition walls 24, 26, in which a connection is established between these chambers, for example through one or more openings and / or one or more tubes penetrating them, so that the fluid flowing from the inlet 28 to the outlet 36 Exhaust gas can flow through all these chambers.
  • the opening section 54 could then be arranged in one of these chambers or could be arranged lying in both chambers or could be divided into two areas, each of which is positioned in one of the flow chambers assigned to the flow volume 42.
  • no further partition dividing the flow volume 42 into several chambers is provided between the first partition 24 and the second partition 26.
  • the exhaust gas outlet could also have a plurality of outlet pipes, then for example forming respective tail pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)

Claims (16)

  1. Silencieux d'échappement pour un système d'échappement d'un moteur à combustion interne, notamment dans un véhicule, comprenant dans un boîtier de silencieux :
    - un volume d'écoulement (42), à travers lequel les gaz d'échappement peuvent s'écouler, avec une entrée de gaz d'échappement (28) et avec une sortie de gaz d'échappement (36),
    - une première chambre de résonateur (44) ouverte sur le volume d'écoulement (42) via un premier col de résonateur (68),
    - une deuxième chambre de résonateur (46) ouverte sur le volume d'écoulement (42) via un deuxième col de résonateur (74),
    caractérisé par un tube de résonateur (52) fournissant le premier col de résonateur (68) et le deuxième col de résonateur (74).
  2. Silencieux d'échappement selon la revendication 1, caractérisé en ce que le boîtier de silencieux (12) comprend une paroi circonférentielle (14) allongée dans la direction d'un axe longitudinal de boîtier (A) et une paroi frontale respective (20, 22) aux deux zones d'extrémité axiales (16, 18) de la paroi circonférentielle (14) ainsi qu'au moins deux cloisons (24, 26) entre les parois avant (20, 22), dans lequel la première chambre de résonateur (44) est séparée du volume d'écoulement (42) par une première cloison (24) et la deuxième chambre de résonateur (46) est séparée du volume d'écoulement (42) par une deuxième cloison (26).
  3. Silencieux d'échappement selon la revendication 2, caractérisé en ce que le volume d'écoulement (42) comprend une chambre d'écoulement (32) formée entre la première cloison (24) et la deuxième cloison (26).
  4. Silencieux d'échappement selon la revendication 2 ou 3, caractérisé en ce que le premier col de résonateur (68) traverse la première cloison (24) ou/et est ouvert vers la première chambre de résonateur (44) dans la zone de la première cloison (24), et en ce que le deuxième col de résonateur (74) traverse la deuxième cloison (26) ou/et est ouvert vers la deuxième chambre de résonateur (46) dans la zone de la deuxième cloison (26).
  5. Silencieux d'échappement selon la revendication 4, caractérisé en ce que la première cloison (24) n'a pas d'ouverture fournissant une connexion entre le volume d'écoulement (42) et la première chambre de résonateur (44) en plus de l'ouverture fournie par le premier col de résonateur (68), et en ce que la deuxième cloison (26) n'a pas d'ouverture fournissant une connexion entre le volume d'écoulement (42) et la deuxième chambre de résonateur (46) en plus de l'ouverture fournie par le deuxième col de résonateur (74).
  6. Silencieux d'échappement selon l'une des revendications précédentes, caractérisé en ce que le tube de résonateur (52) présente au moins une ouverture de paroi de tube (64) établissant une connexion entre le volume d'écoulement (42) et un intérieur de tube du tube de résonateur (52) dans une paroi de tube (62) du tube de résonateur (52) dans sa section s'étendant dans le volume d'écoulement (42).
  7. Silencieux d'échappement selon la revendication 6, caractérisé en ce que le tube de résonateur (52) présente une section d'ouverture (54) avec une pluralité d'ouvertures de paroi de tube (64) dans sa section s'étendant dans le volume d'écoulement (42).
  8. Silencieux d'échappement selon la revendication 7, caractérisé en ce que le tube de résonateur (52) fournit le premier col de résonateur (68) dans une première zone de longueur (56) adjacente à la section d'ouverture (54) à une première zone d'extrémité axiale (66) de la section d'ouverture (54) et il fournit le deuxième col de résonateur (74) dans une deuxième zone de longueur (58) adjacente à la section d'ouverture (54) à une deuxième zone d'extrémité axiale (72) de la section d'ouverture (54).
  9. Silencieux d'échappement selon l'une des revendications 2-7, caractérisé en ce que la première chambre de résonateur (44) est formée entre l'une des deux parois frontales (20, 22) et la première cloison (24), et en ce que la deuxième chambre de résonateur (46) est formée entre l'autre des deux parois frontales (20, 22) et la deuxième cloison (26).
  10. Silencieux d'échappement selon la revendication 3, en combinaison avec la revendication 6 et en combinaison avec la revendication 9, caractérisé en ce que le tube de résonateur (52) traverse la chambre d'écoulement (32) et est ouvert avec une première zone d'extrémité axiale (70) vers la première chambre de résonateur (44) ou/et est situé dans la première chambre de résonateur (44) et est ouvert avec une deuxième zone d'extrémité axiale (76) vers la deuxième chambre de résonateur (46) ou/et est situé dans la deuxième chambre de résonateur (46), et que le tube de résonateur (52) présente au moins une ouverture de paroi de tube (64) dans sa section s'étendant dans la chambre d'écoulement (32).
  11. Silencieux selon l'une des revendications 2 à 10, caractérisé en ce que l'entrée des gaz d'échappement (28) comprend un tube d'entrée (30), qui est ouvert dans la zone de l'une des deux parois frontales (20, 22) et fournit un canal d'entrée (34), et en ce que la sortie des gaz d'échappement (36) comprend un tube de sortie (38), qui est ouvert dans la zone de l'autre des deux parois frontales (20, 22) et fournit un canal de sortie (40).
  12. Silencieux d'échappement selon la revendication 11, caractérisé en ce que le tube d'entrée (30) traverse l'une des deux chambres de résonateur (44, 46), et en ce que le tube de sortie (38) traverse l'autre des deux chambres de résonateur (44, 46).
  13. Silencieux d'échappement selon la revendication 12, caractérisé en ce que le tube d'entrée (30) est ouvert vers le volume d'écoulement (42) dans la zone de la cloison (24) séparant l'une des deux chambres de résonateur (44, 46) du volume d'écoulement (42), et en ce que le tube de sortie (38) est ouvert vers le volume d'écoulement (42) dans la zone de la cloison de boîtier (26) séparant l'autre des deux chambres de résonateur (44, 46) du volume d'écoulement (42).
  14. Silencieux d'échappement selon la revendication 3 ou l'une des revendications 4-13, dans le cas où il est fait référence à la revendication 3, caractérisé en ce que la première chambre de résonateur (44) formée entre l'une des deux parois frontales (20, 22) et la première cloison (24), la chambre d'écoulement (32) formée entre la première cloison (24) et la deuxième cloison (26) et la deuxième chambre de résonateur (46) formée entre la deuxième cloison (26) et l'autre des deux parois frontales (20, 22) sont prévues à la suite les unes des autres dans la direction de l'axe longitudinal de boîtier (A).
  15. Silencieux d'échappement selon l'une des revendications précédentes, caractérisé en ce que la première chambre de résonateur (44) et la deuxième chambre de résonateur (46) présentent des volumes de chambre de résonateur différents l'un de l'autre, et/ou en ce que le premier col de résonateur (68) et le deuxième col de résonateur (74) présentent des longueurs de col de résonateur différentes l'une de l'autre.
  16. Silencieux d'échappement selon l'une des revendications précédentes, caractérisé en ce que le tube de résonateur (52) a une dimension de section transversale constante sur toute sa longueur.
EP20164452.3A 2019-05-02 2020-03-20 Silencieux de gaz d'échappement pour une installation d'échappement d'un moteur à combustion interne Active EP3734033B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019111270.2A DE102019111270A1 (de) 2019-05-02 2019-05-02 Abgasschalldämpfer für eine Abgasanlage einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP3734033A1 EP3734033A1 (fr) 2020-11-04
EP3734033B1 true EP3734033B1 (fr) 2021-07-21
EP3734033B8 EP3734033B8 (fr) 2021-08-25

Family

ID=69941191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20164452.3A Active EP3734033B8 (fr) 2019-05-02 2020-03-20 Silencieux de gaz d'échappement pour une installation d'échappement d'un moteur à combustion interne

Country Status (4)

Country Link
US (1) US11643953B2 (fr)
EP (1) EP3734033B8 (fr)
CN (1) CN111878192B (fr)
DE (1) DE102019111270A1 (fr)

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434565A (en) * 1967-12-21 1969-03-25 Walker Mfg Co Silencer with angled tuning tube leading to helmholtz resonator
GB1443652A (en) * 1973-05-07 1976-07-21 Nissan Motor Combination exhaust-gas cleaner and muffler for an automobile engine
US4111279A (en) * 1976-07-26 1978-09-05 Tenneco Inc. Louver flow muffler
US4359135A (en) * 1979-08-31 1982-11-16 Donaldson Company, Inc. Muffler assembly
JPS60167126U (ja) * 1984-04-13 1985-11-06 日産自動車株式会社 自動車用エンジンの排気装置
JPH0745806B2 (ja) * 1986-11-21 1995-05-17 カルソニック株式会社 消音器
JP3344239B2 (ja) * 1995-12-26 2002-11-11 日産自動車株式会社 自動車用排気消音装置
JP3568005B2 (ja) * 1996-03-15 2004-09-22 ヤンマー株式会社 排気消音器
JP3424471B2 (ja) * 1996-05-16 2003-07-07 日産自動車株式会社 自動車用排気消音装置
JPH10299473A (ja) * 1997-04-22 1998-11-10 Calsonic Corp 制御型消音器
KR100311132B1 (ko) * 1999-03-12 2001-11-02 이계안 내연기관의 레조네이터
JP2005240633A (ja) * 2004-02-25 2005-09-08 Suzuki Motor Corp マフラ構造
JP4324142B2 (ja) * 2005-08-29 2009-09-02 株式会社汎建製作所 マフラー
DE102005054002B4 (de) 2005-11-10 2021-08-12 Purem GmbH Schalldämpfer
WO2009009120A1 (fr) * 2007-07-10 2009-01-15 Jb Design, Inc. Silencieux
KR100957147B1 (ko) * 2007-12-07 2010-05-11 현대자동차주식회사 차량의 소음기 및 이를 사용한 배기 장치
KR100962791B1 (ko) * 2008-07-08 2010-06-09 현대자동차주식회사 자동차용 메인 소음기
KR101526594B1 (ko) * 2009-10-07 2015-06-08 현대자동차주식회사 차량의 머플러
CN102278171B (zh) * 2010-06-09 2012-12-19 上海天纳克排气系统有限公司 带可变调谐管的亥姆霍兹共振器
DE102010042679A1 (de) * 2010-10-20 2012-04-26 J. Eberspächer GmbH & Co. KG Schalldämpfer
KR101211301B1 (ko) * 2011-01-13 2012-12-11 엘에스엠트론 주식회사 공명기
US8424636B2 (en) * 2011-04-29 2013-04-23 E.I. Du Pont De Nemours And Company Muffler assembly and process of manufacture
US20120273301A1 (en) * 2011-04-29 2012-11-01 E. I. Du Pont De Nemours And Company Muffler assembly with mounting adapter(s) and process of manufacture
CN102536386A (zh) * 2011-12-29 2012-07-04 湛江市华夏消声器有限公司 一种改进结构的汽车排气消声器总成
KR101262612B1 (ko) * 2012-02-16 2013-05-08 현대자동차주식회사 스포티한 음색 구현이 가능한 횡치형 소음기
KR101316133B1 (ko) * 2012-08-10 2013-10-08 현대자동차주식회사 차량용 소음기
AT13947U1 (de) * 2013-01-16 2015-01-15 Henn Gmbh & Co Kg Schalldämpfer und Verfahren zu seiner Herstellung
DE102014217058A1 (de) * 2014-08-27 2016-03-03 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer
EP3303791B1 (fr) * 2015-05-25 2019-03-20 Wärtsilä Finland Oy Système d'atténuation acoustique utilisant des atténuateurs acoustique pour amortissement des vibrations de pression dans un système d'échappement d'un moteur
DE102015108495A1 (de) * 2015-05-29 2016-12-01 Eberspächer Exhaust Technology GmbH & Co. KG Abgasschalldämpfer zum Quereinbau in ein Fahrzeug
DE102015118573A1 (de) * 2015-10-30 2017-05-04 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine
US10196947B2 (en) * 2016-02-02 2019-02-05 Kohler Co. Muffler
WO2017144266A1 (fr) 2016-02-26 2017-08-31 Tenneco Gmbh Élément de silencieux d'échappement et silencieux d'échappement
US9976460B2 (en) * 2016-03-24 2018-05-22 Caterpillar Inc. Exhaust after-treatment assembly for engine system
DE102016109388A1 (de) * 2016-05-23 2017-11-23 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine, insbesondere für Kraftfahrzeuge mit Hybridantrieb
US11199116B2 (en) * 2017-12-13 2021-12-14 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler

Also Published As

Publication number Publication date
EP3734033B8 (fr) 2021-08-25
US20200347761A1 (en) 2020-11-05
CN111878192B (zh) 2022-05-31
US11643953B2 (en) 2023-05-09
CN111878192A (zh) 2020-11-03
DE102019111270A1 (de) 2020-11-05
EP3734033A1 (fr) 2020-11-04

Similar Documents

Publication Publication Date Title
DE102005054002B4 (de) Schalldämpfer
EP3163038B1 (fr) Silencieux pour un système d'échappement d'un moteur à combustion interne
EP0791131B1 (fr) Silencieux d'echappement a resonance
EP1959106B2 (fr) Silencieux pour un système d'échappement
EP3042064A1 (fr) Résonateur
DE19956172C5 (de) Doppelkammerdämpfer
DE102015222088A1 (de) Schalldämpfer für eine Abgasanlage
DE19743446C2 (de) Abgasanlage für eine Brennkraftmaschine
DE2908506C2 (de) Schalldämpfer für Verbrennungskraftmaschinen
WO2013149912A1 (fr) Silencieux avec accouplement du tube d'extrémité par le biais d'une chambre de couplage
DE2545364C3 (fr)
DE2706957C2 (de) Abgasschalldämpfer
EP3734033B1 (fr) Silencieux de gaz d'échappement pour une installation d'échappement d'un moteur à combustion interne
DE60008774T2 (de) Keilabschnitt-mehrkammer-resonatoranordnung
DE2022037C3 (de) Resonanzschalldämpfer fön strömen· de Gase
DE102015007767A1 (de) Schalldämpfer für eine Abgasanlage eines Kraftfahrzeugs, Abgasanlage und Kraftfahrzeug
DE10254631B4 (de) Schalldämpfer für eine Abgasanlage einer Brennkraftmaschine
EP3061931A1 (fr) Système d'échappement de gaz d'un moteur à combustion interne
DE1476630A1 (de) Kombinierte Abgasleitung und Schalldaempfer
DE2257852C2 (de) Abgasschalldämpfer für mehrzylindrige Brennkraftmaschinen
DE10103739B4 (de) Schalldämpfer
DE949974C (de) Schalldaempfer fuer pulsierende Stroemungen, insbesondere fuer den Auspuff von Kraftfahrzeug-Brennkraftmaschinen
DE964915C (de) Schalldaempfer fuer Brennkraftmaschinen
EP3330509A1 (fr) Silencieux d'échappement et son procédé de fabrication
DE102016106340A1 (de) Abgasanlage für ein Kraftfahrzeug und Kraftfahrzeug

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210115

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210507

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502020000093

Country of ref document: DE

Owner name: PUREM GMBH, DE

Free format text: FORMER OWNER: EBERSPAECHER EXHAUST TECHNOLOGY GMBH, 66539 NEUNKIRCHEN, DE

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNG B8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020000093

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1412791

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210815

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: PUREM GMBH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210721

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

Ref country code: NL

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: 20210721

Ref country code: NO

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: 20211021

Ref country code: PT

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: 20211122

Ref country code: FI

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: 20210721

Ref country code: HR

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: 20210721

Ref country code: BG

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: 20211021

Ref country code: LT

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: 20210721

Ref country code: ES

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: 20210721

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: 20210721

Ref country code: RS

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: 20210721

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

Ref country code: PL

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: 20210721

Ref country code: LV

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: 20210721

Ref country code: GR

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: 20211022

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502020000093

Country of ref document: DE

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

Ref country code: DK

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: 20210721

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: SM

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: 20210721

Ref country code: SK

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: 20210721

Ref country code: RO

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: 20210721

Ref country code: EE

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: 20210721

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: 20210721

Ref country code: AL

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: 20210721

26N No opposition filed

Effective date: 20220422

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

Effective date: 20210721

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

Ref country code: MC

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: 20210721

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220331

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

Ref country code: LU

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

Effective date: 20220320

Ref country code: IE

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

Effective date: 20220320

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

Ref country code: BE

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

Effective date: 20220331

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

Ref country code: FR

Payment date: 20230320

Year of fee payment: 4

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: LI

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

Effective date: 20230331

Ref country code: CH

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

Effective date: 20230331

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

Ref country code: MK

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: 20210721

Ref country code: CY

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: 20210721

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

Ref country code: DE

Payment date: 20240321

Year of fee payment: 5

Ref country code: GB

Payment date: 20240322

Year of fee payment: 5