EP3892835B1 - Module d'insertion pour un silencieux d'une installation de gaz d'échappement d'un moteur à combustion interne - Google Patents

Module d'insertion pour un silencieux d'une installation de gaz d'échappement d'un moteur à combustion interne Download PDF

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Publication number
EP3892835B1
EP3892835B1 EP21161163.7A EP21161163A EP3892835B1 EP 3892835 B1 EP3892835 B1 EP 3892835B1 EP 21161163 A EP21161163 A EP 21161163A EP 3892835 B1 EP3892835 B1 EP 3892835B1
Authority
EP
European Patent Office
Prior art keywords
mounting
exhaust gas
accordance
walls
opening
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
EP21161163.7A
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German (de)
English (en)
Other versions
EP3892835A1 (fr
Inventor
Michael Marquardt-Stammberger
Martin Strähle
Christian Walter
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
Purem 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 Purem GmbH filed Critical Purem GmbH
Publication of EP3892835A1 publication Critical patent/EP3892835A1/fr
Application granted granted Critical
Publication of EP3892835B1 publication Critical patent/EP3892835B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
    • 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
    • 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
    • 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
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • 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
    • F01N2470/08—Gas passages being formed between the walls of an outer shell and an inner chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers
    • 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
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • 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
    • 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
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only

Definitions

  • the present invention relates to an insert assembly for a muffler of an exhaust system of an internal combustion engine.
  • An insert assembly according to the preamble of claim 1 is from DE 10 2018 124 198 A1 known.
  • an exhaust gas flow unit which is essentially designed with a T-shaped structure is arranged between two walls.
  • a flow-through channel area of the exhaust gas flow-through unit penetrates an outer peripheral wall of a muffler housing with one of its end areas.
  • two mounting channel areas that extend essentially in opposite directions branch off from the flow-through channel area.
  • the mounting channel areas pass through the openings formed between the walls receiving the exhaust gas flow unit and are open to chambers formed in the muffler housing on the opposite sides of the two walls, so that the exhaust gas introduced via the exhaust gas flow unit flows into these chambers via the mounting channel areas .
  • the insert assembly constructed according to the invention can be easily assembled into one unit with the walls accommodating the exhaust gas flow unit between them and as such can be integrated into a muffler.
  • a channel longitudinal axis of the first assembly channel area can essentially correspond to a channel longitudinal axis of the second assembly channel area. Provision can furthermore be made for the exhaust gas flow unit to be open in mutually opposite directions at the first assembly opening and the second assembly opening.
  • a first mounting formation is provided on the first wall that engages in the first mounting channel area in the area of the first mounting opening, and on the second wall there is one in the area of the second mounting opening in the second mounting -Channel area engaging second mounting formation provided.
  • the first assembly formation cover the first assembly channel area in the area of the first Installation opening against the passage of exhaust gas closes off substantially, and / and that the second mounting formation closes off the second mounting channel area in the region of the second mounting opening against the passage of exhaust gas substantially. It should be pointed out in this context that this does not conflict with the fact that the exhaust gas flow unit is basically open in the area of the installation channel areas in order to be able to accommodate the installation formations that then essentially close off the installation openings.
  • a longitudinal duct axis of the flow-through duct area is arranged essentially orthogonally to the longitudinal duct axis of the first assembly duct area and/or to the longitudinal duct axis of the second assembly duct area, a substantially T-shaped or Y-shaped structure of the exhaust gas flow-through unit is achieved, which in the respective end areas the structure can interact with the walls or a peripheral wall of a silencer for a stable mounting.
  • the flow duct area, the first assembly duct area and the second assembly duct area can be open to an exhaust gas flow unit central volume.
  • the exhaust gas flow unit comprises an exhaust gas flow unit housing with a first housing shell and a second housing shell connected to the first housing shell in fastening edge regions.
  • a plurality of internal exhaust gas flow openings open to the central volume of the exhaust gas flow unit can be provided in the first housing shell and/or the second housing shell.
  • the stable integration of the exhaust gas flow unit into a muffler can be further supported in that at least one mounting projection engaging in an engagement opening of one of the walls is provided on the exhaust gas flow unit housing.
  • mounting projections are provided on the first housing shell or the second housing shell, each extending towards one of the walls.
  • a structure that is simple and inexpensive to implement, but is nevertheless thermally stable and resistant to exhaust gases can be achieved in that the walls and the exhaust gas flow unit are formed sheet metal parts.
  • the exhaust gas flow from or to the chamber formed between the two walls can be achieved in the interior of a muffler by providing a plurality of internal exhaust gas flow openings in at least one wall, preferably both walls.
  • the present invention also relates to a muffler for an exhaust system of an internal combustion engine, comprising a peripheral wall surrounding a muffler interior and an insert assembly with a structure according to the invention arranged in the muffler interior.
  • the exhaust gas through-flow opening to the outside can be aligned with an opening formed in the peripheral wall, which can be achieved, for example, by the through-flow channel area passing through the opening in the peripheral wall.
  • At least one wall preferably each of the two walls, can be an intermediate wall separating chambers formed in the interior of the silencer.
  • the 1 and 2 show an insert assembly, generally designated 10, for a silencer 11 of an exhaust system of an internal combustion engine.
  • the Insert assembly 10 comprises two walls 12, 14 designed as sheet metal parts.
  • Each of the walls 12, 14 has an approximately plate-like wall body 16, 18 and on its outer circumference a peripheral edge region 20, 22 provided for attachment to a peripheral wall 13 of a muffler housing 15.
  • the walls 12, 14, which can be arranged in the muffler 11, for example, as intermediate walls, are preferably in contact with the inner surface of the peripheral wall 13 over the entire circumference.
  • an exhaust gas flow unit, generally designated 26 is arranged in a chamber 24 formed between the two walls 12, 14, an exhaust gas flow unit, generally designated 26, is arranged.
  • the exhaust gas flow-through unit 26 has an exhaust gas flow-through unit housing 28 which is constructed with two housing shells 30, 32 which are complementary to one another. Like the walls 12, 14, the two housing shells 30, 32 are formed as a formed sheet metal part or formed sheet metal parts.
  • the exhaust gas flow unit 26 has a flow channel area 34 in which a central volume 36 formed inside the exhaust gas flow unit 24 is open via an external exhaust gas flow opening 38 .
  • the flow-through channel area 34 can be, for example, a substantially cylindrical end area of the exhaust gas flow-through unit housing 28 which extends at least in regions along a longitudinal channel axis L D of the flow-through channel area 34 .
  • the external exhaust gas flow opening 38 formed in the through-flow channel region 34 is arranged in the muffler 11 in such a way that it is aligned with an opening 17 provided in the peripheral wall 13, so that exhaust gas is introduced into or out of the muffler 11 via the external exhaust gas flow opening 38 can be dissipated.
  • the through-flow channel area 34 can pass through the opening 17 provided in the peripheral wall 13 and be connected in a gas-tight manner to the peripheral wall 13 in this area, for example by welding.
  • the exhaust gas flow-through unit 26 also includes a first mounting channel area 40 and a second mounting channel area 42. With the first mounting channel area 40, the exhaust gas flow-through unit housing 28 extends towards the first wall 12. The exhaust gas flow unit housing 28 extends with the second mounting channel area 42 towards the second wall 14 .
  • Each of the mounting channel regions 40, 42 which extend away from the central volume 36 in essentially opposite directions to one another, is elongated at least in some areas along a respective longitudinal channel axis L M1 or L M2 and can be provided by an approximately cylindrical section of the exhaust gas flow unit housing 28.
  • the exhaust gas through-flow unit housing 28 is open in the area of each assembly channel area 40, 42 via a respective first assembly opening 44 and second assembly opening 46, respectively.
  • respective assembly formations 48, 50 are formed on the two walls 12, 14.
  • the assembly formations protrude from the respective plate-like wall body 16, 18 towards the respective other wall 12, 14, so that they are positioned to engage in a respective assembly channel area 40, 42 in the area of the first assembly opening 44 or second assembly opening 46 provided there can.
  • the outer peripheral contour of the assembly formations 48, 50 is adapted to the inner peripheral contour of the assembly channel regions 40, 42, so that the assembly formations 48, 50 engaging in the area of the first assembly opening 44 and the second assembly opening 46 are stable therein and transverse to the respective longitudinal channel axis L M1 , L M2 are held by positive locking. Since preferably no openings penetrating the walls 12, 14 are formed in the mounting formations 48, 50, the two mounting channel regions 40, 42 are essentially closed off by the mounting formations 48, 50 against the passage of exhaust gas.
  • the two housing shells 30, 32 are materially connected to one another in two edge regions 54, 54 or 56, 58 that extend outwards from the through-flow channel region 34 to the first assembly channel region 40 or to the second assembly channel region 42. for example by welding, firmly connected. Also in one between the With the two assembly openings 44, 46 on wall sections 60, 62 of the two housing shells 30, 32 facing away from the through-flow channel area 34, the two housing shells 30, 32 can be connected to one another in a material-locking manner. In an alternative embodiment, these two housing shells 30, 32 can be integrally connected to one another in the area of the wall sections 60, 62, i.e. they can be provided by a single sheet metal part which, after the forming process has been carried out, is bent in a transition area between the two wall sections 60, 62 and bent into the is brought in the figures recognizable T-shaped or Y-shaped form.
  • the housing shell 32 shown below are provided, for example, as extended sections of the edge regions 54 and 58, respectively, as mounting projections 64, 66, which run towards the respectively opposite wall 12 and 14, respectively.
  • the walls 12, 14 are provided with slot-like engagement openings 68, 70 adapted to the peripheral contour of the mounting projections 64, 66, in which the mounting projections 64, 66 engage, for example in such a way that they are on the side of the respective plate-like wall body facing away from the exhaust gas flow unit 26 16, 18 protrude.
  • the two mounting projections 64, 44 can be accommodated in the engagement openings 68, 70 receiving them, for example with little play or with a press fit, so that no additional measures are required to achieve a firm connection between the walls 12, 14 and the exhaust gas flow unit 26.
  • the mounting formations 48, 50 can also be dimensioned such that they are inserted into the mounting channel regions 40, 42 with an interference fit. Alternatively or additionally, a firm cohesion can also be ensured by firmly connecting the exhaust gas flow unit 26 to the walls 12, 14 in the area of the mounting projections 64, 66 and/or in the area of the mounting channel areas 40, 42 by material bonding, for example welding .
  • exhaust gas flow openings are provided on exhaust gas flow unit housing 28 72 provided.
  • Such internal through-flow openings 72 can be provided in the exhaust gas through-flow unit housing 28 in one or in both housing shells 30, 32 and thus provide a flow connection between the central volume 36 in the interior of the exhaust gas through-flow unit 26 and the internal volume of the chamber 24.
  • the chamber 24 can be connected via at least one wall 12, 14 to an adjacent chamber or another chamber in the silencer interior 19 by means of a connecting pipe 76 and an exhaust gas flow opening 78 formed in the wall 12 in the example shown be open.
  • the internal throughflow openings 72, 74 on the exhaust gas throughflow unit housing 28 or the walls 12, 14 are preferably arranged in a regular opening pattern and each provide perforations distributed over a large area, which ensure an approximately uniform passage of exhaust gas distributed over a larger area.
  • the two longitudinal duct axes L M1 , L M2 of the mounting duct regions 40, 42 are preferably arranged in such a way that they are coaxial with one another, i.e. continue one another, so that the two mounting duct regions 40, 42 or the mounting openings 44, 46 are positioned substantially congruently.
  • the longitudinal channel axis L D of the flow-through channel area 34 is preferably arranged in such a way that it is approximately orthogonal to the two longitudinal channel axes L M1 , L M2 of the mounting channel areas 40, 42, although these axes do not necessarily have to lie in a common plane.
  • the exhaust gas flow-through unit 26 can essentially be related to a plane of symmetry containing the longitudinal axis L D of the flow-through channel region 34 be mirror-symmetrical.
  • the two assembly channel regions 40, 42 can also have different cross-sectional dimensions or different cross-sectional shapes, and/or they can be offset from one another transversely to their respective longitudinal axes.
  • the mounting projections 64, 44 are preferably provided on the same housing shell 32, which leads to a particularly stable structure.
  • these two mounting projections 64, 66 could also be arranged on different housing shells 30, 32, and several mounting projections could also be provided at least in association with one of the two walls 12, 14, one or a part of which, for example, in association with a of the two housing shells 30, 32 can be provided, while the one or the other can be provided on the other of the two housing shells 30, 32.

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

Claims (15)

  1. Unité d'assemblage d'insert pour un silencieux d'un système d'échappement d'un moteur à combustion interne, comprenant deux parois (12, 14) disposées à des emplacements espacés l'un de l'autre, dans laquelle chacune des deux parois (12, 14) comprend une zone de bord circonférentielle (20, 22) destinée à être fixée à une paroi circonférentielle (13) d'un silencieux (11), et une unité d'écoulement de gaz d'échappement (26) disposée entre les deux parois (12, 14), dans laquelle l'unité d'écoulement de gaz d'échappement (26) comprend :
    - une zone de conduit d'écoulement (34) avec une ouverture d'écoulement externe des gaz d'échappement (38) à positionner en direction d'une ouverture (17) dans la paroi circonférentielle (13) du silencieux (11),
    - une première zone de conduit de montage (40),
    - une deuxième zone de conduit de montage (42),
    caractérisé en ce que
    - la première zone de conduit de montage (40) présente une première ouverture de montage (44) pour la fixation de l'unité d'écoulement de gaz d'échappement (26) sur une première des parois (12, 14), dans laquelle une première formation de montage (48) s'engageant dans la première zone de conduit de montage (40) dans la région de la première ouverture de montage (44) est prévue sur la première paroi (12),
    - la deuxième zone de conduit de montage (42) présente une deuxième ouverture de montage (46) pour la fixation de l'unité d'écoulement de gaz d'échappement (26) sur une deuxième des parois (12, 14), dans laquelle une deuxième formation de montage (50) s'engageant dans la deuxième zone de conduit de montage (42) dans la région de la deuxième ouverture de montage (46) est prévu sur la deuxième paroi (14).
  2. Unité d'assemblage d'insert selon la revendication 1, caractérisée en ce qu'un axe longitudinal de conduit (LM1) de la première zone de conduit de montage (40) correspond essentiellement à un axe longitudinal de conduit (LM2) de la deuxième zone de conduit de montage (42).
  3. Unité d'assemblage d'insert selon la revendication 2, caractérisée en ce que l'unité d'écoulement de gaz d'échappement (26) est ouverte dans des directions opposées l'une à l'autre au niveau de la première ouverture de montage (44) et de la deuxième ouverture de montage (46).
  4. Unité d'assemblage d'insert selon l'une des revendications précédentes, caractérisée en ce que la première formation de montage (48) ferme essentiellement la première zone de conduit de montage (40) contre le passage des gaz d'échappement dans la zone de la première ouverture de montage (44).
  5. Unité d'assemblage d'insert selon l'une des revendications précédentes, caractérisée en ce que la deuxième formation de montage (50) ferme essentiellement la deuxième zone de conduit de montage (42) contre le passage des gaz d'échappement dans la zone de la deuxième ouverture de montage (46).
  6. Unité d'assemblage d'insert selon la revendication 2 ou selon l'une des revendications 3 à 5, si on se réfère à la revendication 2, caractérisée en ce qu'un axe longitudinal de conduit (LD) de la zone de conduit d'écoulement (34) est disposé essentiellement à angle droit par rapport à l'axe longitudinal de conduit (LM1) de la première zone de conduit de montage (40) ou/et essentiellement à angle droit par rapport à l'axe longitudinal de conduit (LM2) de la deuxième zone de conduit de montage (42).
  7. Unité d'assemblage d'insert selon l'une des revendications précédentes, caractérisée en ce que la zone de conduit d'écoulement (34), la première zone de conduit de montage (40) et la deuxième zone de conduit de montage (42) sont ouvertes vers un volume central d'unité d'écoulement de gaz d'échappement (36).
  8. Unité d'assemblage d'insert selon l'une des revendications précédentes, caractérisée en ce que l'unité d'écoulement de gaz d'échappement (26) comprend un boîtier d'unité d'écoulement de gaz d'échappement (28) avec une première coque de boîtier (30) et avec une deuxième coque de boîtier (32) reliée à la première coque de boîtier (30) dans des zones de bord de fixation (52, 54, 56, 58).
  9. Unité d'assemblage d'insert selon la revendication 7 et 8, caractérisée en ce qu'une pluralité d'ouvertures d'écoulement internes de gaz d'échappement (72), qui sont ouvertes vers le volume central de l'unité d'écoulement de gaz d'échappement (36), sont prévues dans la première coque de boîtier (30) ou/et dans la deuxième coque de boîtier (32).
  10. Unité d'assemblage d'insert selon la revendication 8 ou 9, caractérisée en ce qu'au moins une saillie de montage (64, 66), qui s'engrène avec une ouverture d'engrènement (68, 70) de l'une des parois (12, 14), est prévue sur le boîtier d'unité d'écoulement de gaz d'échappement (28).
  11. Unité d'assemblage d'insert selon la revendication 10, caractérisée en ce que des saillies de montage (64, 66), dont chacune s'étend vers l'une des parois (12, 14), sont prévues sur la première coque de boîtier (30) ou sur la deuxième coque de boîtier (32).
  12. Unité d'assemblage d'insert selon l'une des revendications précédentes, caractérisée en ce que les parois (12, 14) et l'unité d'écoulement de gaz d'échappement (26) sont des pièces de tôle façonnées, ou/et en ce qu'une pluralité d'ouvertures d'écoulement intérieur des gaz d'échappement (74) sont prévues dans au moins une paroi (12, 14), de préférence dans les deux parois (12, 14).
  13. Silencieux pour un système d'échappement d'un moteur à combustion interne, comprenant une paroi circonférentielle entourant un intérieur de silencieux et une unité d'assemblage d'insert (10) selon l'une des revendications précédentes, disposée dans l'intérieur du silencieux.
  14. Silencieux selon la revendication 13, caractérisé en ce que l'ouverture d'écoulement externe des gaz d'échappement (38) est dirigée vers une ouverture formée dans la paroi circonférentielle, ou/et en ce que la zone de conduit d'écoulement (34) traverse l'ouverture dans la paroi circonférentielle.
  15. Silencieux selon la revendication 13 ou 14, caractérisé en ce qu'au moins une paroi, de préférence chacune des deux parois (12, 14), est une cloison séparant des chambres (24, 80, 82) formées à l'intérieur du silencieux.
EP21161163.7A 2020-04-08 2021-03-08 Module d'insertion pour un silencieux d'une installation de gaz d'échappement d'un moteur à combustion interne Active EP3892835B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020109817.0A DE102020109817A1 (de) 2020-04-08 2020-04-08 Einsatzbaugruppe für einen Schalldämpfer einer Abgasanlage einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP3892835A1 EP3892835A1 (fr) 2021-10-13
EP3892835B1 true EP3892835B1 (fr) 2023-02-01

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US (1) US11725554B2 (fr)
EP (1) EP3892835B1 (fr)
CN (1) CN113494345B (fr)
DE (1) DE102020109817A1 (fr)

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US20210317763A1 (en) 2021-10-14
DE102020109817A1 (de) 2021-10-14
EP3892835A1 (fr) 2021-10-13
US11725554B2 (en) 2023-08-15
CN113494345A (zh) 2021-10-12
CN113494345B (zh) 2023-10-03

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