EP1146206B1 - Silencieux de gaz d'échappement à construction à chambres multiples - Google Patents

Silencieux de gaz d'échappement à construction à chambres multiples Download PDF

Info

Publication number
EP1146206B1
EP1146206B1 EP01103818A EP01103818A EP1146206B1 EP 1146206 B1 EP1146206 B1 EP 1146206B1 EP 01103818 A EP01103818 A EP 01103818A EP 01103818 A EP01103818 A EP 01103818A EP 1146206 B1 EP1146206 B1 EP 1146206B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
gas silencer
silencer according
shell
pipe
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 - Lifetime
Application number
EP01103818A
Other languages
German (de)
English (en)
Other versions
EP1146206A3 (fr
EP1146206A2 (fr
Inventor
Siegfried Wörner
Herbert Schumacher
Stephan Giebel
Norbert Klein
Helmut Neu
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 Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher 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
Priority claimed from DE10058142A external-priority patent/DE10058142A1/de
Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Priority to EP06011041A priority Critical patent/EP1693556A3/fr
Publication of EP1146206A2 publication Critical patent/EP1146206A2/fr
Publication of EP1146206A3 publication Critical patent/EP1146206A3/fr
Application granted granted Critical
Publication of EP1146206B1 publication Critical patent/EP1146206B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/14—Plurality of outlet tubes, e.g. in parallel or with different length
    • 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
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Definitions

  • the invention relates to a multi-chamber exhaust gas silencer according to the preamble of claim 1.
  • an exhaust muffler which has two inner half-shells, in which the inner exhaust gas guide is stamped and which form the inner partitions of the chambers. Above the upper horizontal partition is an absorption chamber and below the lower partition a reflection chamber is provided. The inner half shells are connected via a common curved edge portion with the outer housing. The inner exhaust duct has S-shape. Thus, a comparatively long internal exhaust path is provided in a compact exhaust muffler.
  • the invention has for its object to provide a generic type exhaust gas muffler, which causes as a rear muffler optimal damping in the low-frequency range and is nevertheless constructed compact.
  • the exhaust gas guide has a first curved outlet pipe, which has a first curved portion and whose preferably rectilinear outlet end runs flush with the outer housing, and a second curved outlet pipe.
  • the second curved outlet pipe also has a second curved portion and a second preferably rectilinear outlet end, wherein the curvature portions of the first outlet pipe and the second outlet pipe facing each other in plan view, and preferably cross at different heights in the exhaust gas muffler.
  • outlet ends of the first outlet pipe and the second outlet pipe on the outlet side of the exhaust muffler parallel and at a close distance to each other in a horizontal plane are arranged, and the inlet ends of the first outlet pipe and the second outlet pipe on the opposite inlet side of the exhaust gas muffler located in the lateral inner corner regions of the exhaust gas muffler in a first reflection chamber.
  • Such a configuration of an outlet tube shape in the manner of two "mammoth teeth" attenuates in operation just the low-frequency buzzing, which are perceived by the prior art in a passenger vehicle as particularly annoying.
  • the exhaust gas silencer according to the invention does not have at least in the basic equipment, possibly a cosmetic end panel, which is inserted and secured in the outlet ends of the outlet pipes.
  • the exhaust muffler according to the invention which can be used as a rear muffler thus has an integrated discharge pipe extension, in particular through the formation of the curved sections.
  • the outlet pipes preferably have no jacket perforation.
  • the outlet pipes may have a stepped extended end, wherein the ratio of the diameter of the outlet pipes to the diameter of the stepped extended end of the outlet pipes may advantageously be in the range of 40 to 52.
  • a compact exhaust gas silencer according to the invention is provided in particular as a four-chamber shell silencer with integrated outlet pipe extension.
  • a first and a second inner radial partition wall are preferably formed in the interior of the exhaust gas Schalldämpüfers.
  • the outlet side of the exhaust muffler associated second partition extends over the entire inner cross-section of the exhaust muffler and is firmly connected to the outer housing.
  • an upper inner shell which extends to the second partition and is fixedly connected to the second partition wall.
  • the upper inner shell is preferably anchored in a Schalenfalz the upper and lower half-shell of the outer housing.
  • the first partition extends over the entire lower shell section to the upper inner shell and in turn is firmly connected to the upper inner shell.
  • the space located on the inlet side of the exhaust muffler between the upper inner shell and the upper half shell of the outer housing to the second partition is preferably filled with sound-absorbing material and thus forms a first absorption chamber.
  • the space between the second dividing wall and the outer housing located on the exit side of the exhaust muffler is expediently likewise filled with a sound-absorbing substance and thus constitutes a second absorption chamber.
  • the space on the inlet side of the exhaust muffler between the upper inner shell and the lower half shell of the outer housing to the first partition is a void and thus forms a first reflection chamber.
  • a second reflection chamber is formed when the space between the upper inner shell and the lower half shell of the outer shell and between the first and second partition walls is also a void space.
  • empty space is understood as meaning a space that has no sound-absorbing substance. It is understood that the aforementioned outlet pipes can run in this "void", as well as other parts of the inner exhaust system, in particular an inlet pipe.
  • the exhaust gas guide preferably has a rectilinear inlet pipe whose end located on the outlet side of the exhaust gas muffler is located in the second absorption chamber.
  • the inlet pipe can be perforated at least partially on the shell side and thereby be formed with passages at least to the first reflection chamber and to the second reflection chamber.
  • the first and the second partition have passage openings for the inlet pipe and the outlet pipes, wherein the inlet pipe and the outlet pipes are firmly connected at least to the first partition, preferably also to the second partition, at least in one embodiment.
  • the first and the second partition and the upper inner shell have at least partially perforation sections.
  • the inlet tube may include an angled inlet that is flush with the outer housing.
  • the inlet pipe in the second absorption chamber has a closed end-side end and a jacket perforation in the region of the second absorption chamber.
  • the inlet pipe in the second absorption chamber has an open end-side end which is arranged coaxially and with circumferential spacing in a deflection pipe which is open on one side.
  • the deflecting tube is arranged in the second absorption chamber and fixed in an opening of the second partition wall in such a way that the annular outlet opening of the deflecting tube points into the second reflection chamber.
  • the annular outlet opening can lie in the plane of the second partition wall.
  • the deflection tube still extends into the second reflection chamber.
  • the deflection tube can also be perforated on the shell side and thereby connected via passages to the second absorption chamber.
  • the second absorption chamber and also the aforementioned first absorption chamber are completely closed and sealed gas-tight. They cause the known buffer damping.
  • the inlet pipe has a tapered, stepped end portion at least in the region of the deflection tube.
  • the cross section of the stepped end portion of the inlet pipe is preferably equal to the cross section of the annular outlet opening of the deflecting tube.
  • the exhaust gas muffler is attached to a vehicle underbody in such a way that the first and the second absorption chamber point in the direction of the vehicle underbody, then not only is good sound attenuation in the direction of the vehicle interior achieved, but also good thermal insulation of the vehicle During operation, the exhaust muffler is directed towards the underbody of the vehicle. This is particularly advantageous when the vehicle is traveling slowly, namely when the airstream can not sufficiently cool the upper side of the exhaust muffler and nevertheless the upper side can be kept at a comparatively low temperature level by the inventive heat insulation of the two absorption chambers.
  • a rear muffler for a passenger car is realized by the invention, in particular, having an integrated tailpipe extension.
  • a particular advantage of the invention is also the low muzzle sound level in muffler systems with extreme volume distribution between pre-muffler / middle silencer to rear muffler, for example in the ratio of 15 to 85th
  • a further embodiment further relates to an exhaust gas muffler with a Schalenfalz in the form of an angled memorisfalzes and two outer half shells each having an edge and at least one inner shell with a flat edge, wherein the edges of the outer half shells are angled outside and connected to each other via the missionsfalz and the flat edge of the inner shell (s) between the edges of the outer half-shells is firmly clamped.
  • a silencer of the aforementioned type whose outer half shells have curved edges, which in the assembled state of a housing shell a Train clamping bead.
  • the flat edge of the inner shell is dimensioned so that it just touches the wall of the housing shell and is held only resiliently between the local terminal beads.
  • the clamping beads are already embossed during prefabrication of the outer half shells.
  • the embossing depth of the clamping bead is predetermined by the thickness of the inner shell.
  • the disadvantage is that position and depth of the terminal bead must be set in the stamping tool.
  • the embodiment of the invention in particular for an inner shell with a variable thickness within certain tolerances and a longitudinal extent not over the entire Schalldämpferaxialin before, that the edges of the outer half shells are formed flat, and that the flat edge of the inner shell (s) between the flat edges of the Outer shells is firmly clamped only in a portion of the missionsfalzes by the angled medicinalsfalz.
  • the inner shell which is not integrated over the entire circumference in the peripheral fold of the outer half shells and thus has a flat edge, which is partially integrated in a normal angled peripheral fold, as is the case with outer half shells of the prior art and is easy to manufacture.
  • the circumferential fold according to the invention is characterized by two different configurations over the entire circumferential length with the same basic constellation.
  • the peripheral fold holds in a Swisseinklemmung a flat edge of an inner shell or two flat edges of two inner shells, wherein the inner shell (s) relative to the outer half shells and against at least one other inner partition of the exhaust muffler is sealed.
  • Part of it is pure closure of the two outer half shells.
  • the inner shell may have different thicknesses within certain limits, without affecting the clamping and sealing effect of the inner shell and the outer half shells.
  • the partial crimping of the inner shell (s) advantageously allows the formation of at least one additional chamber in a shell silencer.
  • the angled examplesfalz be formed down and have a simply folded upper edge of an upper outer half-shell. This variant allows external fluid to flow out of the peripheral rebate and thus does not intrude into the interior of the silencer.
  • the angled circumferential fold has in particular an upper counter bend or upper counter bend.
  • This variant is particularly advantageous for generating a larger range of effective biasing force or contact force of the flat edges of the outer half shells either directly against each other or indirectly against each other with the interposition of the flat edge of the inner shell, in both cases a good sealing effect is given even with different thicknesses of an inner shell ,
  • At least the outer half shells and the angled therapeuticsfalz may be double-walled, which allows different muffler variants with the same contemplatsfalz cod.
  • a lower outer half-shell may have an inner bottom, which is flanged over a radius edge side and sealingly adjacent to the underside of the inner shell.
  • an exhaust gas silencer 1 in a four-chamber construction of a passenger vehicle comprises an outer housing 2.
  • the outer housing 2 is composed of an upper half shell 3 and a lower half shell 4, which are fixedly connected to each other in their horizontal parting plane by means of a Schalenfalzes 25. In the shell fold 25, an upper inner shell 5 is also attached. Through the exhaust muffler 1, an inner exhaust duct extends.
  • the exhaust gas guide has two curved outlet pipes 9, 10, which are arranged in the interior of the exhaust gas muffler 1.
  • the first curved outlet pipe 9 is the left outlet pipe and has a first curved portion, which is curved in a plan view of Figure 2 to the right.
  • the exit end 27 is located in the left rear corner of the exhaust muffler 1.
  • the first outlet pipe 9 extends from the rear straight into the silencer interior.
  • the curvature section describes an arc of 90 °.
  • the inlet section of the outlet pipe 9 is again rectilinear.
  • the inlet end 29 is located according to Figure 2 in about the right front corner of the silencer interior on the inlet side of the exhaust muffler.
  • the exit end 27 is flush with the outer housing 2 and has a stepped extended end 31st
  • the second curved outlet pipe 10 is constructed in principle like the first curved outlet pipe 9. Accordingly, it has a rectilinear exit end 28, which also has a stepped extended end 31, and a second curvature portion which, according to Figure 2 from the back first to the right and then approximately in a 90 ° bend to the left silencer inside in the other left corner extends inside the muffler on the inlet side of the exhaust muffler.
  • the curvature portions of the first outlet pipe 9 and the second outlet pipe 10 are thus trimmed to each other in plan view and cross each other without contact at different heights in the exhaust muffler.
  • the outlet ends 27, 28 of the first outlet pipe 9 and the second outlet pipe 10 are arranged on the outlet side of the exhaust muffler in parallel and at a close distance a from each other in a horizontal plane.
  • the inlet ends 29, 30 of the first outlet pipe 9 and the second outlet pipe 10 are located on the opposite inlet side of the exhaust muffler in the lateral inner corner regions of the exhaust muffler in a first reflection chamber 16, which will be described below.
  • Both outlet pipes 9, 10 have an imperforate coat.
  • the ratio of the diameter d of the outlet pipes 9, 10 to the diameter D of the stepped enlarged end 31 of the outlet pipes is in the range of 40 to 52.
  • the exhaust gas muffler 1 further comprises a first and a second inner radial partition wall 6, 7, wherein the output side of the exhaust muffler associated second partition wall 7 extends over the entire inner cross section of the exhaust muffler 1 and fixedly connected to the outer housing 2 is.
  • the already mentioned upper inner shell 5 is located on the inlet side of the exhaust muffler interior and extends to the second partition 7, with which it is firmly connected.
  • the first partition wall 6 extends over the entire lower half shell cross section up to the upper inner shell 5 and is firmly connected to the upper inner shell.
  • the space located on the inlet side of the exhaust muffler 1 between the upper inner shell 5 and the upper half shell 3 of the outer housing 2 to the second partition wall 7 is filled with a first sound-absorbing material. It forms a first absorption chamber 14.
  • the space located on the outlet side of the exhaust muffler 1 between the second partition wall 7 and the outer housing 2 is filled with a second sound-absorbing material. It forms a second absorption chamber 15.
  • the located on the inlet side of the exhaust muffler 1 space between the upper inner shell 5 and the lower half-shell 4 of the outer housing 2 to the first partition 6th is a white space. It forms the already mentioned first reflection chamber 16.
  • the space between the upper inner shell 5 and the lower half shell 4 of the outer housing 2 and between the first and the second partition wall 6, 7 is also a void. It forms a second reflection chamber 17.
  • the inner exhaust system of the exhaust muffler 1 further has on the left in Figure 2 inlet side of the exhaust muffler 1 a straight inlet pipe 8.
  • the inlet pipe 8 has on the right in Figure 2 exit side of the exhaust muffler 1, a blind end 32; which terminates in the second absorption chamber 15.
  • the inlet pipe 8 is perforated at least partially on the shell side and thereby has passages 22, 23 at least to the first reflection chamber 16 and to the second reflection chamber 17.
  • the first and the second partition wall 6, 7 have through openings for the inlet pipe 8 and the outlet pipes 9, 10, wherein the inlet pipe and the outlet pipes with the first partition wall 6 and with the second partition 7 are fixedly connected.
  • the first and the second partition wall 6, 7 and the upper inner shell 5 further comprise at least partially perforations 18, 19, 20, 21.
  • the inlet pipe 8 has an angled inlet, which runs flush with the outer housing 2.
  • exhaust gas can flow through the exhaust gas muffler 1 during operation.
  • the exhaust gas passes through the inlet pipe 8 through the first jacket perforation 22 into the first reflection chamber 16 and through the second jacket perforation 23 in the second reflection chamber 17 and from there through the perforation 20 of the first partition 6 in the first reflection chamber 16th
  • exhaust gas passes through the jacket perforation 24 into the second absorption chamber 15.
  • exhaust gas passes through the perforation 18 of the upper inner shell 5 from the first reflection chamber 16 and through the perforation 19 of the upper inner shell 5 from the second reflection chamber into the first absorption chamber 14.
  • the exhaust gas located in the first reflection chamber is discharged via the two long, curved outlet pipes 9, 10 from the interior of the exhaust muffler according to the drawing to the right to the outlet end, and from there practically into the atmosphere, since no silencer outer tailpipes are more provided, if necessary, still screens that improve the visual appearance of the silencer system.
  • FIG. 5 shows another embodiment of an inlet pipe 8.
  • the remaining parts of the exhaust muffler correspond to the embodiment of Figures 1 to 4. The same parts are therefore provided with the same reference numerals.
  • the inlet pipe 8 of Figure 5 has no blind end on the right side in the second absorption chamber 15 as in the first embodiment, but an open frontal end 33.
  • the end 33 is located coaxially and circumferentially in a unidirectional opening 11.
  • the deflection tube 11 is arranged in the second absorption chamber 15 and secured in an opening of the second partition 7.
  • the annular outlet opening of the deflecting tube 11 faces into the second reflection chamber 17.
  • the deflecting tube 11 The inlet pipe 8 has a tapered, stepped end portion 8a at least in the region of the deflecting tube 11.
  • the cross section of the stepped end portion 8a of the inlet pipe is equal to the cross section of the annular outlet opening of the deflecting tube 11.
  • Das Deflection tube 11 has on the outlet side of the exhaust muffler in the second absorption chamber 15, a closed dome-shaped end-side deflection end 35th
  • the embodiment according to FIG. 5 has good throughflow conditions in the area of the inlet pipe.
  • the flow resistance of the flowing exhaust gas is comparatively low.
  • the arrangement is primarily suitable for high-performance internal combustion engines.
  • the exhaust gas muffler is attached to a vehicle underbody so that the first and the second absorption chamber 14, 15 point in the direction of the vehicle underbody, i. lie in the vicinity of the vehicle underbody and thereby a heat insulation against the vehicle underbody is established.
  • the hot opposite wall of the muffler is facing the ground on which the vehicle is moving. In this way, the vehicle underbody can not be overheated even when driving slowly or when the vehicle is at a standstill, ie when there is little or no cooling due to the airstream.
  • a four-chamber exhaust muffler 1 of a passenger vehicle comprises an outer housing, which is composed of an upper outer half shell 200 and a lower outer half shell 300, which are firmly connected to each other in its horizontal parting plane by means of an angled memorisfalzes 900.
  • an upper inner shell 400 is also partially attached, as will be described below.
  • the inner exhaust duct extends with the two curved outlet pipes.
  • the exhaust muffler 1 further includes a first inner radial partition wall 150 and a second inner radial partition wall 140, wherein the output side of the exhaust muffler associated second partition wall 140 extends over the entire inner cross section of the exhaust muffler 1 and fixed to the outer housing connected is.
  • the already mentioned upper inner shell 400 is located on the inlet side of the exhaust muffler interior and extends to the second partition wall 140, with which it is firmly connected.
  • the first partition wall 150 extends over the entire lower half shell cross section up to the upper inner shell 400 and is firmly connected to the upper inner shell.
  • the space located on the inlet side of the exhaust muffler 1 between the upper inner shell 400 and the upper outer half shell 200 of the outer housing to the second partition wall 140 is filled with a first sound-absorbing material. It forms a first absorption chamber 160.
  • the located on the outlet side of the exhaust muffler 1 space between the second partition wall 140 and the outer housing is filled with a second sound-absorbing material. It forms a second absorption chamber 170.
  • the located on the inlet side of the exhaust muffler 1 space between the upper inner shell 400 and the lower half shell 300 of the outer housing to the first partition 150th is a white space. It forms a first reflection chamber.
  • the space between the upper inner shell 400 and the lower outer half shell 300 and between the first and second partition walls 150, 140 is also a void. It forms a second reflection chamber.
  • the aforementioned exhaust gas muffler 1 of a passenger car in multi-chamber construction has, as can be seen in more detail in Figures 10 and 11, two outer half shells 200, 300 each with a rim 500 and an inner shell 400 with a flat edge 600, wherein the edges 500 of the outer half shells 200, 300 are angled outside and thus connected together in this way on the diligentsfalz 900, and the flat edge 600 of the inner shell 400 is partially clamped between the edges 500 of the outer half shells.
  • edges 500 of the outer half shells 200, 300 are formed flat, and it is the flat edge 600 of the inner shell 400 between the flat edges 500 of the outer half shells firmly clamped only in a portion T1 of the missionsfalzes 900 by the angled motivationsfalz 900.
  • the two flat edges 500 of the outer half shells 200, 300 are clamped directly against one another and create an additional sealing area in addition to the angled circumferential fold 900 according to FIG. 11.
  • the angled examplesfalz 900 is formed down and has a simply folded upper edge of the upper outer half-shell 200.
  • the angled circumferential fold 900 has an upper opposing bend 700.
  • Both outer half shells 200, 300 including circumferential fold 900 are double-walled.
  • the lower outer half-shell 300 has an inner bottom 130, which is flanged over a radius 800 edge side and sealingly adjacent to the underside of the inner shell 400.
  • An aforementioned circumferential fold 900 is formed in an exhaust muffler 1 mainly as follows.
  • the prefabricated outer half shells 200, 300 with the interposition of the prefabricated inner shell 400 are only positioned in the partial area T1 of the outer half shells 200, 300 and after installation of the remaining individual parts according to FIGS. 6 to 9 with their flat edges 500, 600 and not by one illustrated fastening arrangement pre-fixed.
  • a peripheral folding tool 120 is attached to the flat edges 500, 600, which is shown in phantom in FIGS. 10 and 11.
  • the attached circumferential seaming tool 120 is used to form the angled circumferential fold 900 of FIGS.
  • the aforementioned prefixing of the exhaust muffler 1 can also by positively interlocking raised and lowered Areas of the outer half-shells and the inner shell (s) take place, in particular in the region of the inlet opening 100 and / or the outlet opening 110. Then, a separate fastening arrangement is optionally unnecessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Claims (30)

  1. Silencieux de gaz d'échappement (1) à construction à chambres multiples, notamment silencieux de gaz d'échappement d'un véhicule automobile particulier, comportant un boîtier extérieur (2) composé d'une demi-coque supérieure et d'une demi-coque inférieure (3, 4), une coque intérieure (5) ainsi qu'un guide intérieur de gaz d'échappement à travers le silencieux de gaz d'échappement,
    dans lequel le guide de gaz d'échappement comporte au moins un premier tuyau d'évacuation courbé (9) qui présente une première section de courbure et dont l'extrémité de sortie de préférence rectiligne (27) s'étend à fleur avec le boîtier extérieur (2),
    caractérisé en ce que
    il est prévu un deuxième tuyau d'évacuation courbé (10) ayant une deuxième section de courbure et une deuxième extrémité de sortie de préférence rectiligne (28), tandis que les sections de courbure du premier tuyau d'évacuation (9) et du deuxième tuyau d'évacuation (10) sont, vues du dessus, orientées l'une vers l'autre.
  2. Silencieux de gaz d'échappement selon la revendication 1, dans lequel les sections de courbure du premier tuyau d'évacuation (9) et du deuxième tuyau d'évacuation (10) se croisent l'une sur l'autre à hauteur différente dans le silencieux de gaz d'échappement.
  3. Silencieux de gaz d'échappement selon la revendication 2, dans lequel les extrémités de sortie (27, 28) du premier tuyau d'évacuation (9) et du deuxième tuyau d'évacuation (10) sont disposées du côté sortie du silencieux de gaz d'échappement et suivant un espacement serré (a) entre elles dans un plan horizontal et les extrémités d'entrée (29, 30) du premier tuyau d'évacuation (9) et du deuxième tuyau d'évacuation (10) se trouvent du côté entrée opposé du silencieux de gaz d'échappement dans les zones de coin intérieures latérales du silencieux de gaz d'échappement dans une première chambre de réflexion (16).
  4. Silencieux de gaz d'échappement selon une des revendications 1 à 3, dans lequel les tuyaux d'évacuation (9, 10) comportent une chemise non perforée.
  5. Silencieux de gaz d'échappement selon une des revendications 1 à 4, dans lequel les tuyaux d'évacuation (9, 10) comportent une extrémité élargie échelonnée (31).
  6. Silencieux de gaz d'échappement selon la revendication 5, dans lequel le rapport du diamètre (d) des tuyaux d'évacuation (9, 10) au diamètre (D) de l'extrémité élargie échelonnée (31) des tuyaux d'évacuation se situe dans la plage de 40 à 52.
  7. Silencieux de gaz d'échappement selon une des revendications 1 à 6, dans lequel une première et une deuxième paroi séparatrice radiale intérieure (6, 7) sont prévues, la deuxième paroi séparatrice (7) associée au côté sortie du silencieux de gaz d'échappement s'étendant sur toute la section transversale intérieure du silencieux de gaz d'échappement (1) et étant reliée fixement au boîtier extérieur (2).
  8. Silencieux de gaz d'échappement selon la revendication 7, dans lequel il est prévu, du côté entrée du silencieux de gaz d'échappement, une coque intérieure supérieure (5) qui s'étend jusqu'à la deuxième paroi séparatrice (7) et est reliée fixement à la deuxième paroi séparatrice et est ancrée de préférence dans un repli de coque (25) de la demi-coque supérieure et inférieure (3, 4) du boîtier extérieur.
  9. Silencieux de gaz d'échappement selon la revendication 8, dans lequel la première paroi séparatrice (6) s'étend sur toute la section transversale inférieure de la demi-coque jusqu'à la coque intérieure supérieure (5) et est reliée fixement à la coque intérieure supérieure.
  10. Silencieux de gaz d'échappement selon la revendication 9, dans lequel l'espace situé du côté entrée du silencieux de gaz d'échappement entre la coque intérieure supérieure (5) et la demi-coque supérieure (3) du boîtier extérieur (2) jusqu'à la deuxième paroi séparatrice (7) est rempli de matière absorbant le son et constitue une première chambre d'absorption (14).
  11. Silencieux de gaz d'échappement selon la revendication 9 ou 10, dans lequel l'espace situé du côté sortie du silencieux de gaz d'échappement entre la deuxième paroi séparatrice (7) et le boîtier extérieur (2) est rempli d'une deuxième matière absorbant le son et constitue une deuxième chambre d'absorption (15).
  12. Silencieux de gaz d'échappement selon une des revendications 9 à 11, dans lequel l'espace situé du côté entrée du silencieux de gaz d'échappement entre la coque intérieure supérieure (5) et la demi-coque inférieure (4) du boîtier extérieur (2) jusqu'à la première paroi séparatrice (6) est un espace vide et constitue la première chambre de réflexion (16).
  13. Silencieux de gaz d'échappement selon une des revendications 9 à 12, dans lequel l'espace entre la coque intérieure supérieure (5) et la demi-coque inférieure (4) du boîtier extérieur ainsi qu'entre la première et la deuxième paroi séparatrice (6, 7) est un espace vide et constitue une deuxième chambre de réflexion (17).
  14. Silencieux de gaz d'échappement selon une des revendications 11 à 13, dans lequel le guide de gaz d'échappement comporte un tuyau d'arrivée de préférence rectiligne (8) dont l'extrémité située du côté sortie du silencieux de gaz d'échappement se trouve dans la deuxième chambre d'absorption (15).
  15. Silencieux de gaz d'échappement selon la revendication 14, dans lequel le tuyau d'arrivée (8) est perforé du moins partiellement sur sa chemise et présente ainsi des passages (22, 23) du moins vers la première chambre de réflexion (16) et vers la deuxième chambre de réflexion (17).
  16. Silencieux de gaz d'échappement selon la revendication 14 ou 15, dans lequel la première et la deuxième paroi séparatrice (6, 7) comportent des orifices de passage pour le tuyau d'arrivée (8) et les tuyaux d'évacuation (9, 10), le tuyau d'arrivée et les tuyaux d'évacuation étant reliés fixement du moins à la première paroi séparatrice (6).
  17. Silencieux de gaz d'échappement selon une des revendications 8 à 16, dans lequel la première et la deuxième paroi séparatrice (6, 7) ainsi que la coque intérieure supérieure (5) comportent au moins partiellement des perforations (18, 19, 20, 21).
  18. Silencieux de gaz d'échappement selon une des revendications 14 à 17, dans lequel le tuyau d'arrivée (8) présente une arrivée coudée qui s'étend à fleur avec le boîtier extérieur (2).
  19. Silencieux de gaz d'échappement selon une des revendications 14 à 18, dans lequel le tuyau d'arrivée (8) présente dans la deuxième chambre d'absorption (15) une extrémité frontale fermée (32) ainsi qu'une perforation de chemise (24) au niveau de la deuxième chambre d'absorption (15).
  20. Silencieux de gaz d'échappement selon une des revendications 14 à 18, dans lequel le tuyau d'arrivée (8) présente dans la deuxième chambre d'absorption (15) une extrémité frontale ouverte (33) qui est disposée coaxialement et à distance de la circonférence dans un tuyau d'inversion ouvert d'un côté (11) qui est disposé de son côté dans la deuxième chambre d'absorption (15) et est fixé dans une percée de la deuxième paroi séparatrice (7), et l'orifice de sortie de forme annulaire du tuyau d'inversion (11) est tourné vers la deuxième chambre de réflexion (17).
  21. Silencieux de gaz d'échappement selon la revendication 20, dans lequel le tuyau d'inversion (11) est perforé sur sa chemise et présente ainsi des passages (34) vers la deuxième chambre d'absorption (15).
  22. Silencieux de gaz d'échappement selon la revendication 20 ou 21, dans lequel le tuyau d'arrivée (8) comporte une section terminale rétrécie échelonnée (8a) du moins au niveau du tuyau d'inversion (11).
  23. Silencieux de gaz d'échappement selon la revendication 22, dans lequel la section transversale de la section terminale échelonnée (8a) du tuyau d'arrivée est égale à la section transversale de l'orifice de sortie de forme annulaire du tuyau d'inversion (11).
  24. Silencieux de gaz d'échappement selon une des revendications 20 à 23, dans lequel le tuyau d'inversion (11) comporte, du côté sortie du silencieux de gaz d'échappement, dans la deuxième chambre d'absorption (15), une extrémité frontale fermée d'inversion en forme de calotte (35).
  25. Silencieux de gaz d'échappement selon une des revendications 11 à 24, dans lequel celui-ci peut être fixé à un sous-plancher de véhicule de manière à ce que la première et la deuxième chambre d'absorption (14, 15) soient tournées en direction du sous-plancher du véhicule.
  26. Silencieux de gaz d'échappement selon une des revendications 8 à 25, comportant un repli de coque sous forme d'un repli circonférentiel coudé (900) et deux demi-coques extérieures (200, 300) pourvues respectivement d'un bord (500) ainsi qu'au moins une coque intérieure (400) à bord plat (600), les bords (500) des demi-coques extérieures (200, 300) étant coudés à l'extérieur et reliés entre eux par le repli circonférentiel (900) et le bord plat (600) de la(des) coque(s) intérieure(s) (400) étant serré fixement entre les bords (500) des demi-coques extérieures, tandis que les bords (500) des demi-coques extérieures (200, 300) ont une conformation plate, et que le bord plat (600) de la(des) coque(s) intérieure(s) (400) entre les bords plats (500) des demi-coques extérieures est serré fixement seulement dans une zone partielle (T1) du repli circonférentiel (900) par le repli circonférentiel coudé (900).
  27. Silencieux de gaz d'échappement selon la revendication 26, dans lequel le repli circonférentiel coudé (900) est pratiqué en direction du bas et inclut un bord supérieur simplement rabattu d'une demi-coque extérieure supérieure (200).
  28. Silencieux de gaz d'échappement selon la revendication 27, dans lequel le repli circonférentiel coudé (900) présente une contre-courbure supérieure (700) ou un contre-coudage supérieur.
  29. Silencieux de gaz d'échappement selon une des revendications 26 à 28, dans lequel au moins les demi-coques extérieures (200, 300) et le repli circonférentiel coudé (900) sont réalisés avec une double paroi.
  30. Silencieux de gaz d'échappement selon une des revendications 26 à 29, dans lequel une demi-coque extérieure inférieure (300) comporte un fond intérieur (130) qui est remonté sur un rayon (800) au bord et s'applique hermétiquement sur le côté inférieur de la coque intérieure (400).
EP01103818A 2000-04-14 2001-02-16 Silencieux de gaz d'échappement à construction à chambres multiples Expired - Lifetime EP1146206B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06011041A EP1693556A3 (fr) 2000-04-14 2001-02-16 Silencieux de gaz d'échappement avec un sertissage de boîtier et procédé de fabrication d'un silencieux de gaz d'échappement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10018505 2000-04-14
DE10018505 2000-04-14
DE10058142A DE10058142A1 (de) 2000-04-14 2000-11-22 Abgas-Schalldämpfer in Mehrkammerbauweise
DE10058142 2000-11-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06011041A Division EP1693556A3 (fr) 2000-04-14 2001-02-16 Silencieux de gaz d'échappement avec un sertissage de boîtier et procédé de fabrication d'un silencieux de gaz d'échappement

Publications (3)

Publication Number Publication Date
EP1146206A2 EP1146206A2 (fr) 2001-10-17
EP1146206A3 EP1146206A3 (fr) 2002-10-02
EP1146206B1 true EP1146206B1 (fr) 2006-08-02

Family

ID=26005310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103818A Expired - Lifetime EP1146206B1 (fr) 2000-04-14 2001-02-16 Silencieux de gaz d'échappement à construction à chambres multiples

Country Status (4)

Country Link
US (1) US7004283B2 (fr)
EP (1) EP1146206B1 (fr)
DE (1) DE50110583D1 (fr)
WO (1) WO2001079665A2 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212050B4 (de) * 2002-03-19 2008-07-31 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Nachschalldämpfer
FR2838476B1 (fr) * 2002-04-12 2005-06-24 Faurecia Sys Echappement Volume d'echappement comportant une enveloppe delimitant un passage de circulation des gaz
US7273129B2 (en) 2003-09-05 2007-09-25 Faurecia Exhaust Systems, Inc. Muffler with internal heat shield
DE10346479A1 (de) * 2003-10-02 2005-05-12 Bayerische Motoren Werke Ag Abgasanlage für eine Brennkraftmaschine
DE10357941B4 (de) * 2003-12-09 2006-03-23 J. Eberspächer GmbH & Co. KG Schalldämpfer für eine Abgasanlage
US20060081416A1 (en) * 2004-10-14 2006-04-20 Nentrup Trent L Exhaust silencer with acoustic damping mat
JP2006151298A (ja) * 2004-11-30 2006-06-15 Honda Motor Co Ltd 燃料電池自動車
JP2006250055A (ja) * 2005-03-11 2006-09-21 Toyota Motor Corp 内燃機関の消音器
DE102006008941A1 (de) * 2006-02-23 2007-08-30 J. Eberspächer GmbH & Co. KG Schalldämpfer für eine Abgasanlage
DE102006049786B4 (de) * 2006-10-21 2013-12-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft 1 bis Abgasnachschalldämpfer
DE102007027371A1 (de) * 2007-06-11 2008-12-18 Cognis Oleochemicals Gmbh Verfahren zur Herstellung einer Verbindung aufweisend mindestens eine Ester-Gruppe
DE102007027372A1 (de) * 2007-06-11 2008-12-18 Cognis Oleochemicals Gmbh Verfahren zur Hydrierung von Glycerin
US20090000863A1 (en) * 2007-06-28 2009-01-01 Share Win Industry Co., Ltd. Exhaust pipe
DE102009014435A1 (de) * 2009-03-26 2010-10-14 J. Eberspächer GmbH & Co. KG Abgasbehandlungseinrichtung
CN101881203A (zh) * 2010-06-29 2010-11-10 江苏天宇石化冶金设备有限公司 管道消音器
DE112012003679B4 (de) * 2011-09-05 2016-10-06 Honda Motor Co., Ltd. Abgas-Schalldämpfer-Vorrichtung
DE102012006544B4 (de) * 2012-04-02 2015-12-31 Tenneco Gmbh Schalldämpfer mit Ankopplung Endrohr über Kopplungskammer
KR101316133B1 (ko) * 2012-08-10 2013-10-08 현대자동차주식회사 차량용 소음기
US8739923B1 (en) * 2013-01-03 2014-06-03 Faurecia Emmissions Control Technologies Muffler for vehicle exhaust system
JP6153371B2 (ja) * 2013-04-15 2017-06-28 ニチアス株式会社 マフラーカッター
US9261009B2 (en) * 2013-07-03 2016-02-16 Honda Motor Co., Ltd. Automotive muffler
WO2015128816A2 (fr) * 2014-02-25 2015-09-03 Bombardier Recreational Products Inc. Silencieux pour système d'échappement d'un moteur à combustion interne
DE102014217058A1 (de) * 2014-08-27 2016-03-03 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer
US11690815B2 (en) * 2015-08-05 2023-07-04 Cmpd Licensing Llc Hyperkeratotic skin condition treatments and compositions
KR102532322B1 (ko) 2018-03-29 2023-05-15 현대자동차주식회사 차량용 소음기
EP3557015B1 (fr) * 2018-04-20 2020-11-04 Volvo Car Corporation Silencieux comprenant un résonateur de type helmholtz et véhicule avec ce silencieux
KR20210051829A (ko) * 2019-10-31 2021-05-10 현대자동차주식회사 스포티 배기 음색 구현을 위한 자동차용 소음기
DE102019132097A1 (de) * 2019-11-27 2021-05-27 Eberspächer Exhaust Technology GmbH Abgasschalldämpfer
KR20210138910A (ko) * 2020-05-13 2021-11-22 현대자동차주식회사 차량의 배기계 소음 저감 장치

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776366A (en) * 1972-07-24 1973-12-04 Outboard Marine Corp Exhaust muffler
GB1448301A (en) * 1973-01-16 1976-09-02 Gillet Gmbh Paul Exhaust silencers
US4111279A (en) * 1976-07-26 1978-09-05 Tenneco Inc. Louver flow muffler
US4235304A (en) * 1976-08-31 1980-11-25 Nihon Radiator Co., Ltd. Muffler
US4132286A (en) * 1976-08-31 1979-01-02 Nihon Radiator Co., Ltd. Muffler
US4119174A (en) * 1977-05-20 1978-10-10 Skyway Recreation Products Engine muffler
JPS6053164B2 (ja) * 1978-09-21 1985-11-25 富士重工業株式会社 自動車用マフラ
USRE31724E (en) * 1979-01-18 1984-11-06 Yamaha Hatsudoki Kabushiki Kaisha Motorcycle exhaust systems
US4574913A (en) * 1983-11-11 1986-03-11 Sankei Giken Kogyo Kabushiki Kaisha Muffler with spark arresting function
DE8709527U1 (de) * 1987-07-10 1987-10-15 Paul Gillet Gmbh, 6732 Edenkoben Abgasschalldämpfer
DE3837677A1 (de) * 1987-11-17 1989-06-01 Volkswagen Ag Bei hohen betriebstemperaturen arbeitender schalldaempfer, insbesondere fuer eine kraftfahrzeug-brennkraftmaschine
JPH06575Y2 (ja) * 1988-06-16 1994-01-05 川崎重工業株式会社 内燃機関用マフラー
JP2559477B2 (ja) * 1988-10-05 1996-12-04 日産自動車株式会社 排気消音装置
JPH0712650Y2 (ja) * 1989-02-23 1995-03-29 マツダ株式会社 エンジンの排気サイレンサ
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly
DE9100866U1 (de) * 1991-01-25 1992-05-27 Roth-Technik GmbH, 7560 Gaggenau Schalldämpfer für eine Abgasanlage
FR2682158B1 (fr) * 1991-10-04 1993-12-10 Wimetal Sa Silencieux de ligne d'echappement pour vehicule automobile.
DE4140429C2 (de) * 1991-12-07 2000-05-25 Eberspaecher J Gmbh & Co Schalldämpfer für Verbrennungsmotoren
DE9307567U1 (de) * 1993-05-18 1994-09-29 Roth-Technik GmbH, 76571 Gaggenau Abgasschalldämpfer
DE9308419U1 (de) * 1993-06-05 1994-10-13 Roth-Technik GmbH, 76571 Gaggenau Schalldämpfer für vorzugsweise gasförmige Medien
DE9400796U1 (de) 1994-01-20 1994-04-07 Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben Schalldämpfer
DE19627079A1 (de) 1996-07-05 1998-01-08 Eberspaecher J Gmbh & Co Absorptions-/Reflexions-Schalldämpfer
DE19627299A1 (de) * 1996-07-06 1998-01-08 Eberspaecher J Gmbh & Co Schalldämpfer mit Außen- und Innenhalbschalen
SE520282C2 (sv) * 1998-12-30 2003-06-17 Volvo Personvagnar Ab Slutrör vid ljuddämpare med perforeringar för dämpning av lågfrekent och högfrekent buller
JP3789742B2 (ja) * 2000-09-08 2006-06-28 本田技研工業株式会社 排気消音器
JP3943818B2 (ja) * 2000-09-21 2007-07-11 本田技研工業株式会社 エンジンの消音器
DE10060522B4 (de) * 2000-12-06 2004-07-22 J. Eberspächer GmbH & Co. KG Abgas-Schalldämpfer für ein brennstoffbetriebenes Heizgerät

Also Published As

Publication number Publication date
EP1146206A3 (fr) 2002-10-02
WO2001079665A3 (fr) 2002-12-05
US20040003963A1 (en) 2004-01-08
DE50110583D1 (de) 2006-09-14
WO2001079665A2 (fr) 2001-10-25
US7004283B2 (en) 2006-02-28
EP1146206A2 (fr) 2001-10-17

Similar Documents

Publication Publication Date Title
EP1146206B1 (fr) Silencieux de gaz d'échappement à construction à chambres multiples
DE19720410B4 (de) Schalldämpfer
DE102006049786B4 (de) 1 bis Abgasnachschalldämpfer
DE10146507B4 (de) Schalldämpfer für einen Motor
DE2738600A1 (de) Schalldaempfer
DE112006003265T5 (de) Auspufftopfeinheit mit schalldämpfendem Element
DE60308618T2 (de) Fingerförmiges Klappenventil
DE10060522B4 (de) Abgas-Schalldämpfer für ein brennstoffbetriebenes Heizgerät
DE4121525A1 (de) Schalldaempfer mit einstueckigem gehaeuse
DE10104835C1 (de) Abgaskühler
EP3473823A1 (fr) Élément de silencieux, silencieux doté dudit élément de silencieux et procédé de fabrication d'un élément de silencieux
EP3707701B1 (fr) Dispositif de réduction de bruits transmis par l'air et des structures
EP1288052A1 (fr) Dispositif d'échappement comprenant un tuyau de sortie
EP3728824A1 (fr) Amortisseur à bande large pour un moteur de véhicule automobile
DE19846666A1 (de) Schalldämpfende Leitung
EP1321639B2 (fr) Dispositif silencieux
DE2808166C3 (fr)
EP0120181B1 (fr) Silencieux d'absorption pour les machines à ondes de pression utilisant la dynamique des gaz
EP0816648A1 (fr) Silencieux pour véhicules automobiles
EP1693556A2 (fr) Silencieux de gaz d'échappement avec un sertissage de boîtier et procédé de fabrication d'un silencieux de gaz d'échappement
EP1375848B1 (fr) Dispositif permettant de réduire les émissions sonores et méthode pour la réalisation d'un tel dispositif
DE112009000884T5 (de) Schalldämpfer für die Abgasleitung von Automobilen
DE3319529A1 (de) Auspuffanlage
DE2738601C2 (de) Schalldämpfer
EP3061931B1 (fr) Systeme d'echappement de gaz d'un moteur a combustion interne

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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

Owner name: J. EBERSPAECHER GMBH & CO. KG

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020822

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20050614

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): DE FR GB IT

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060802

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NEU, HELMUT

Inventor name: SCHUMACHER, HERBERT

Inventor name: KLEIN, NORBERT

Inventor name: GIEBEL, STEPHAN

Inventor name: WOERNER, SIEGFRIED

REF Corresponds to:

Ref document number: 50110583

Country of ref document: DE

Date of ref document: 20060914

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061023

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070503

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

Ref country code: DE

Payment date: 20090228

Year of fee payment: 9

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

Ref country code: GB

Payment date: 20090223

Year of fee payment: 9

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

Ref country code: IT

Payment date: 20090226

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20090217

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100216

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101029

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: 20100301

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

Ref country code: DE

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

Effective date: 20100901

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 NON-PAYMENT OF DUE FEES

Effective date: 20100216

Ref country code: GB

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

Effective date: 20100216