EP1347155A2 - End silencer - Google Patents

End silencer Download PDF

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Publication number
EP1347155A2
EP1347155A2 EP03003086A EP03003086A EP1347155A2 EP 1347155 A2 EP1347155 A2 EP 1347155A2 EP 03003086 A EP03003086 A EP 03003086A EP 03003086 A EP03003086 A EP 03003086A EP 1347155 A2 EP1347155 A2 EP 1347155A2
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EP
European Patent Office
Prior art keywords
glass wool
housing
exhaust gas
gas outlet
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.)
Granted
Application number
EP03003086A
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German (de)
French (fr)
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EP1347155B1 (en
EP1347155A3 (en
Inventor
Jörg Winkel
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1347155A2 publication Critical patent/EP1347155A2/en
Publication of EP1347155A3 publication Critical patent/EP1347155A3/en
Application granted granted Critical
Publication of EP1347155B1 publication Critical patent/EP1347155B1/en
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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
    • 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
    • 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
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers

Definitions

  • the invention relates to a rear silencer according to the preamble of Claim 1.
  • DE 29 14 159 C2 describes an exhaust silencer for an exhaust system Internal combustion engine known, which enters a housing of the muffler Exhaust gas inlet pipe. This has a perforation on the circumferential free end on, which is directly facing a wall of the housing, so that an emerging Exhaust gas flow can heat the wall, which is what happens with a stainless steel housing Discoloration of heat results.
  • the object of the invention is to provide a noise-controlled rear silencer create the disadvantages of heat discoloration of a stainless steel housing Avoids heating.
  • the main advantages achieved with the invention are that in the range of Outlet openings or perforations for the exhaust gas flow in the exhaust gas outlet pipe Walls of the housing of the rear silencer through high-temperature resistant Absorption materials such as Glass wool are protected so that the relatively high Outlet temperatures of the exhaust gases are not transferable to the housing walls.
  • This is achieved by lining the other chambers of the housing with glass wool so that the tube ends perforated at the circumference Exhaust gas pipes all around from a space lined with glass wool are surrounded. This free space extends on the face of a free end of the Exhaust gas outlet pipe up to an opening of a spaced apart one downstream exhaust gas outlet pipe. This pipe is immediately from Glass wool enclosed and the perforated peripheral surface is trimmed to the glass wool.
  • the free spaces of the rear silencer are closed by perforated holes Support floors for the pipe, the perforations on the pipe circumference approximately in the middle of the Free space. This arrangement ensures that the heat radiation can occur approximately in the center of the free space through the exiting exhaust gas flow.
  • the free space is made with a dimension> 10 mm around the pipe.
  • the heat shielding with a certain thickness of the glass wool ensures that that the very high gas outlet temperatures at the exhaust outlet pipe up to the outer shell the housing of the rear silencer is greatly reduced.
  • the glass wool has an exhaust gas flow on one or more inner surfaces and on one End face of the glass wool lining perforations.
  • FIG. 1 An embodiment of the invention is shown in the drawing and is in following described in more detail.
  • the drawing shows a section through one Rear silencer with free space in the housing for the exhaust emissions from Exhaust outlet pipes.
  • a rear silencer 1 of an exhaust system of an internal combustion engine comprises essentially a housing 2 made of stainless steel in a double version, in the one or two exhaust gas inlet pipes 3 or 3 and 4 enter and with exhaust gas outlet pipes 5 and 6 are connected. At the end spaced from these tubes 5 and 6 are more subsequent exhaust gas outlet pipes 7 and 8 are provided.
  • three chambers A, B and C are preferably formed, with the first Chamber A the exhaust gas inlet pipes 3 or 3 and 4 enter and face each other of the housing 2 branch into the other chambers B and C.
  • the first chamber is A formed without heat shielding and has a branching at a 90 ° angle Pipe parts 9, which have at least one perforation 10 and the exiting exhaust gas are not directed towards the inner wall of the housing 2, so that none Heat discoloration of the housing can occur.
  • the two other chambers B and C are with a space 11, 12 within one Provided heat shield made of glass wool 13.
  • these rooms 11, 12 are the free Ends of the exhaust gas outlet pipes 5, 6 are arranged, which are circumferential each have at least one perforation 15 and the front side, for example, of one Lid 14 are complete.
  • These perforations, which act as gas outlet openings 15 are arranged approximately in the center of the chambers B and C.
  • Exhaust gas outlet pipe 7, 8 Opposite the tube 5, 6 in the chambers B and C is another Exhaust gas outlet pipe 7, 8 provided that is arranged at a distance from the pipe 5, 6 and is completely surrounded by glass wool or arranged embedded in it.
  • the Exhaust gas flow flows in the direction of the arrow and also passes through a perforated surface 17, 18 Pipe circumference to the glass wool 13 out.
  • the chambers B and C are each towards the chamber A via a support base 19, 20 separated, that is, the chambers A, B and C are via perforations 21 in Support floor 19, 20 connected to one another in a gas-permeable manner.
  • the clearances 11, 12 of the chambers B and C can do that with a dimension of> 10 mm Enclose tube 5, 6 all around.
  • a Gas outlet temperature on pipe 5, 6 in a range from 800 ° C to 900 ° C to Outer shell of the housing 2 of the rear silencer 1 by 300 ° C to 400 ° C can be reduced so that no heat stains occur on the outer housing 2 made of stainless steel can.
  • Perforations 15 in the tubes 5 and 6 Perforations 22 on the inner surfaces of the glass wool 13 facing each other. Can too these perforated inner surfaces the temperature gradient to the outer wall of the housing 2nd influence favorably.
  • the glass wool perforations are in a so-called cage arranged, which supports the glass wool.

Landscapes

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

Abstract

Rear silencer has chambers (B, C) of a housing (2) each having a glass wool lining (13). The pipe ends of the exhaust gas outlet pipes (5, 6) have perforations (15) on the periphery and are surrounded by a free chamber (11) also lined with glass wool. The free chamber extends on the front side from one free end of the pipe up to the mouth opening of a further exhaust gas outlet pipe (7, 8) having perforated surfaces (17) directly enclosed by the glass wool. Preferred Features: The free chambers are each sealed on the front side by a perforated base (20, 21) for the pipes (5, 6) and the perforations lie on the pipe periphery approximately in the center of the free chamber.

Description

Die Erfindung bezieht sich auf einen Nachschalldämpfer nach dem Oberbegriff des Anspruchs 1.The invention relates to a rear silencer according to the preamble of Claim 1.

Aus der DE 29 14 159 C2 ist ein Abgasschalldämpfer für eine Abgasanlage einer Brennkraftmaschine bekannt, der eine in ein Gehäuse des Schalldämpfers eintretendes Abgaseingangsrohr aufweist. Dieses weist am freien Ende umfangsseitig eine Perforation auf, die unmittelbar einer Wandung des Gehäuses zugerichtet ist, so daß ein austretender Abgasstrom die Wandung erhitzen kann, was bei einem Gehäuse aus Edelstahl Wärmeverfärbung nach sich zieht.DE 29 14 159 C2 describes an exhaust silencer for an exhaust system Internal combustion engine known, which enters a housing of the muffler Exhaust gas inlet pipe. This has a perforation on the circumferential free end on, which is directly facing a wall of the housing, so that an emerging Exhaust gas flow can heat the wall, which is what happens with a stainless steel housing Discoloration of heat results.

Aufgabe der Erfindung ist es, einen geräuschabgestimmten Nachschalldämpfer zu schaffen, der die Nachteile von Wärmeverfärbungen eines Edelstahlgehäuses durch Erhitzung vermeidet.The object of the invention is to provide a noise-controlled rear silencer create the disadvantages of heat discoloration of a stainless steel housing Avoids heating.

Diese Aufgabe wird erfindungsgemäß bei einem Nachschalldämpfer durch die Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is achieved according to the invention in a rear silencer by the features of claim 1 solved. The dependent claims contain further advantageous features.

Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß im Bereich von Austrittsöffnungen bzw. Perforationen für den Abgasstrom im Abgasausgangsrohr die Wandungen des Gehäuses des Nachschalldämpfers durch hochwarmfeste Absorptionsmaterialien wie z.B. Glaswolle so geschützt sind, daß die relativ hohen Austrittstemperaturen der Abgase nicht auf die Gehäusewandungen übertragbar sind. Dies wird erreicht, indem die weiteren Kammern des Gehäuses jeweils eine Auskleidung mit Glaswolle derartig aufweisen, daß am Umfang perforierte Rohrenden der Abgasausgangsrohre rundum von einem mit der Glaswolle ausgekleideten Freiraum umgeben sind. Dieser Freiraum erstreckt sich stirnseitig eines freien Endes des Abgasausgangsrohres bis zu einer Einmündungsöffnung eines beabstandeten weiteren stromabwärts angeordneten Abgasausgangsrohres. Dieses Rohr ist unmittelbar von Glaswolle umschlossen und die perforierte Umfangsfläche ist der Glaswolle zugerichtet.The main advantages achieved with the invention are that in the range of Outlet openings or perforations for the exhaust gas flow in the exhaust gas outlet pipe Walls of the housing of the rear silencer through high-temperature resistant Absorption materials such as Glass wool are protected so that the relatively high Outlet temperatures of the exhaust gases are not transferable to the housing walls. This is achieved by lining the other chambers of the housing with glass wool so that the tube ends perforated at the circumference Exhaust gas pipes all around from a space lined with glass wool are surrounded. This free space extends on the face of a free end of the Exhaust gas outlet pipe up to an opening of a spaced apart one downstream exhaust gas outlet pipe. This pipe is immediately from Glass wool enclosed and the perforated peripheral surface is trimmed to the glass wool.

Ein Abschluß der Freiräume des Nachschalldämpfers erfolgt jeweils über perforierte Stützböden für das Rohr, wobei die Perforierungen am Rohrumfang etwa mittig des Freiraumes liegen. Durch diese Anordnung ist sichergestellt, daß die Wärmeabstrahlung durch den austretenden Abgasstrom etwa im Zentrum des Freiraumes erfolgen kann. Insbesondere ist der Freiraum mit einem Maß > 10 mm um das Rohr herum ausgeführt.The free spaces of the rear silencer are closed by perforated holes Support floors for the pipe, the perforations on the pipe circumference approximately in the middle of the Free space. This arrangement ensures that the heat radiation can occur approximately in the center of the free space through the exiting exhaust gas flow. In particular, the free space is made with a dimension> 10 mm around the pipe.

Durch die Wärmeabschirmung mit einer bestimmten Dicke der Glaswolle wird erreicht, daß die sehr hohe Gasaustrittstemperaturen am Abgasausgangsohr bis zur Außenschale des Gehäuses des Nachschalldämpfers stark vermindert wird.The heat shielding with a certain thickness of the glass wool ensures that that the very high gas outlet temperatures at the exhaust outlet pipe up to the outer shell the housing of the rear silencer is greatly reduced.

Zum abgestimmten Geräuschverhalten und zur Beeinflussung der Wärmeabstrahlung des Abgasstromes weist die Glaswolle an einer oder mehreren Innenflächen sowie an einer Stirnfläche der Glaswollenauskleidung Perforationen auf.For the coordinated noise behavior and for influencing the heat radiation of the The glass wool has an exhaust gas flow on one or more inner surfaces and on one End face of the glass wool lining perforations.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Die Zeichnung zeigt einen Schnitt durch einen Nachschalldämpfer mit Freiräumen im Gehäuse für die Abgasausmündungen von Abgasausgangsrohren.An embodiment of the invention is shown in the drawing and is in following described in more detail. The drawing shows a section through one Rear silencer with free space in the housing for the exhaust emissions from Exhaust outlet pipes.

Ein Nachschalldämpfer 1 einer Abgasanlage einer Brennkraftmaschine umfaßt im wesentlichen ein Gehäuse 2 aus Edelstahl in gedoppelter Ausführung, in das ein oder zwei Abgaseingangsrohre 3 oder 3 und 4 eintreten und mit Abgasausgangsrohren 5 und 6 verbunden sind. Stirnseitig beabstandet zu diesen Rohren 5 und 6 sind weitere anschließende Abgasausgangsrohre 7 und 8 vorgesehen.A rear silencer 1 of an exhaust system of an internal combustion engine comprises essentially a housing 2 made of stainless steel in a double version, in the one or two exhaust gas inlet pipes 3 or 3 and 4 enter and with exhaust gas outlet pipes 5 and 6 are connected. At the end spaced from these tubes 5 and 6 are more subsequent exhaust gas outlet pipes 7 and 8 are provided.

Im Gehäuse 2 sind vorzugsweise drei Kammern A, B und C gebildet, wobei in die erste Kammer A die Abgaseingangsrohre 3 oder 3 und 4 eintreten und sich zu beiden Seiten des Gehäuses 2 in die weiteren Kammern B und C verzweigen. Die erste Kammer A ist ohne Wärmeabschirmung ausgebildet und weist unter einem 90° Winkel abzweigende Rohrteile 9 auf, die wenigstens eine Perforation 10 besitzen und die austretenden Abgas werden nicht in Richtung der Innenwandung des Gehäuses 2 geleitet, so dass hier keine Wärmeverfärbungen des Gehäuses auftreten können.In the housing 2, three chambers A, B and C are preferably formed, with the first Chamber A the exhaust gas inlet pipes 3 or 3 and 4 enter and face each other of the housing 2 branch into the other chambers B and C. The first chamber is A formed without heat shielding and has a branching at a 90 ° angle Pipe parts 9, which have at least one perforation 10 and the exiting exhaust gas are not directed towards the inner wall of the housing 2, so that none Heat discoloration of the housing can occur.

Die beiden weiteren Kammern B und C sind mit einem Freiraum 11, 12 innerhalb einer Wärmeabschirmung aus Glaswolle 13 versehen. In diesen Räumen 11, 12 sind die freien Enden der Abgasausgangsrohre 5, 6 angeordnet, welche umfangsseitig jeweils wenigstens eine Perforation 15 aufweisen und stirnseitig beispielsweise von einem Deckel 14 abgeschlossen sind. Diese als Gasaustrittsöffnungen wirkenden Perforationen 15 sind etwa im Zentrum der Kammern B und C angeordnet.The two other chambers B and C are with a space 11, 12 within one Provided heat shield made of glass wool 13. In these rooms 11, 12 are the free Ends of the exhaust gas outlet pipes 5, 6 are arranged, which are circumferential each have at least one perforation 15 and the front side, for example, of one Lid 14 are complete. These perforations, which act as gas outlet openings 15 are arranged approximately in the center of the chambers B and C.

Dem Rohr 5, 6 in den Kammern B und C gegenüberstehend ist jeweils ein weiteres Abgasausgangsrohr 7, 8 vorgesehen, daß beabstandet zum Rohr 5, 6 angeordnet ist und vollkommen von Glaswolle umgeben bzw. in diese eingebettet angeordnet ist. Der Abgasstrom fließt in Pfeilrichtung und tritt auch über eine perforierte Fläche 17, 18 am Rohrumfang zur Glaswolle 13 hin aus.Opposite the tube 5, 6 in the chambers B and C is another Exhaust gas outlet pipe 7, 8 provided that is arranged at a distance from the pipe 5, 6 and is completely surrounded by glass wool or arranged embedded in it. The Exhaust gas flow flows in the direction of the arrow and also passes through a perforated surface 17, 18 Pipe circumference to the glass wool 13 out.

Die Kammern B und C sind jeweils über einen Stützboden 19, 20 zur Kammer A hin abgetrennt, das heißt, die Kammern A, B und C sind über Perforationen 21 im Stützboden 19, 20 miteinander gasdurchlässig verbunden.The chambers B and C are each towards the chamber A via a support base 19, 20 separated, that is, the chambers A, B and C are via perforations 21 in Support floor 19, 20 connected to one another in a gas-permeable manner.

Die Freiräume 11, 12 der Kammern B und C können mit einem Maß von > 10 mm das Rohr 5, 6 rundherum umschließen. Insbesondere soll erreicht werden, daß eine Gasaustrittstemperatur am Rohr 5, 6 in einen Bereich von 800°C bis 900°C bis zur Außenschale des Gehäuses 2 des Nachschalldämpfers 1 um 300°C bis 400°C verminderbar ist, damit keine Wärmeflecken am Außengehäuse 2 aus Edelstahl auftreten können. The clearances 11, 12 of the chambers B and C can do that with a dimension of> 10 mm Enclose tube 5, 6 all around. In particular, it should be achieved that a Gas outlet temperature on pipe 5, 6 in a range from 800 ° C to 900 ° C to Outer shell of the housing 2 of the rear silencer 1 by 300 ° C to 400 ° C can be reduced so that no heat stains occur on the outer housing 2 made of stainless steel can.

Zur Geräuschoptimierung bzw. zur Erzielung eines abgestimmten Geräuschverhaltens des austretenden Abgases sind die Perforationen 15 in den Rohren 5 und 6, Perforationen 22 an den Innenflächen der Glaswolle 13 gegenüberstehend. Auch können diese perforierten Innenflächen das Temperaturgefälle zur Außenwand des Gehäuses 2 hin günstig beeinflussen. Die Perforationen der Glaswolle sind in einem sog. Käfig angeordnet, der die Glaswolle abstützt.For noise optimization or to achieve a coordinated noise behavior of the exiting exhaust gas are the perforations 15 in the tubes 5 and 6, Perforations 22 on the inner surfaces of the glass wool 13 facing each other. Can too these perforated inner surfaces the temperature gradient to the outer wall of the housing 2nd influence favorably. The glass wool perforations are in a so-called cage arranged, which supports the glass wool.

Claims (5)

Nachschalldämpfer für eine Abgasanlage einer Brennkraftmaschine, die aus einem langgestreckten Gehäuse mit mehreren Kammern besteht, wobei in einer stromabwärts liegenden von einer Schale des Gehäuses gebildeten ersten Kammer mindestens ein Abgaseingangsrohr eingeführt ist, während in die weiteren Kammern Abgasausgangsrohre einmünden und aus dem Gehäuse herausgeführt sind, dadurch gekennzeichnet, daß die weiteren Kammern (B) und (C) eines aus Edelstahl bestehenden Gehäuses (2) jeweils eine Auskleidung mit Glaswolle (13) derartig aufweisen, daß am Umfang mit Perforationen (15) versehene Rohrenden der Abgasausgangsrohre (5, 6) rundum von einem mit Glaswolle (13) ausgekleideten Freiraum (11) angeordnet sind, der sich stirnseitig von einem freien Ende des Rohres (5, 6) bis zu einer Einmündungsöffnung eines beabstandeten stromabwärts angeordneten weiteren anschließenden Abgasausgangsrohres (7, 8) erstreckt, deren perforierte Umfangsfläche (17) unmittelbar von der Glaswolle (13) umschlossen ist.Rear silencer for an exhaust system of an internal combustion engine, which consists of an elongated housing with a plurality of chambers, at least one exhaust gas inlet pipe being introduced into a downstream first chamber formed by a shell of the housing, while exhaust gas outlet pipes open into the other chambers and are led out of the housing, characterized in that the further chambers (B) and (C) of a housing (2) made of stainless steel each have a liner with glass wool (13) such that pipe ends of the exhaust gas outlet pipes (5, 6) provided with perforations (15) are arranged all around by a free space (11) lined with glass wool (13), which extends on the end face from a free end of the tube (5, 6) to an opening of a spaced downstream downstream connecting exhaust gas outlet tube (7, 8), the perforated of which Circumferential surface (17) directly from the glass wool (13) is enclosed. Nachschalldämpfer nach Anspruch 1, dadurch gekennzeichnet, daß die Freiräume (11, 12) jeweils vorderseitig von einem perforierten Stützboden (20, 21) für das Rohr (5, 6) abgeschlossen sind und die Perforierungen (21) am Rohrumfang etwa im Zentrum des Freiraumes (11) liegen.Rear silencer according to claim 1, characterized in that the free spaces (11, 12) are each closed on the front side by a perforated support base (20, 21) for the tube (5, 6) and the perforations (21) on the tube circumference approximately in the center of the free space (11) lie. Nachschalldämpfer nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß der Freiraum (11) mit einem Maß > 10 mm um das Rohr (5, 6) herum ausgeführt ist.Rear silencer according to claims 1 or 2, characterized in that the free space (11) is made with a dimension> 10 mm around the pipe (5, 6). Nachschalldämpfer nach den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß die Glaswolle (13) eine solche Dicke aufweist, daß eine Gasaustrittstemperatur am Rohr (5, 6) im Bereich von 800°C bis 900°C bis zur Außenschale des Gehäuses (2) um 300°C bis 400°C verminderbar ist. Rear silencer according to Claims 1, 2 or 3, characterized in that the glass wool (13) has a thickness such that a gas outlet temperature on the tube (5, 6) in the range from 800 ° C to 900 ° C to the outer shell of the housing ( 2) can be reduced by 300 ° C to 400 ° C. Nachschalldämpfer nach den Ansprüchen 1, 2, 3 oder 4, dadurch gekennzeichnet, daß die Glaswolle (13) an einer oder mehreren Innenflächen und an der Stirnfläche der Perforationen (22) aufweisen.Rear silencer according to claims 1, 2, 3 or 4, characterized in that the glass wool (13) has on one or more inner surfaces and on the end face of the perforations (22).
EP03003086A 2002-03-19 2003-02-13 End silencer Expired - Lifetime EP1347155B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10212050A DE10212050B4 (en) 2002-03-19 2002-03-19 silencer
DE10212050 2002-03-19

Publications (3)

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EP1347155A2 true EP1347155A2 (en) 2003-09-24
EP1347155A3 EP1347155A3 (en) 2003-11-12
EP1347155B1 EP1347155B1 (en) 2005-01-12

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EP03003086A Expired - Lifetime EP1347155B1 (en) 2002-03-19 2003-02-13 End silencer

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EP (1) EP1347155B1 (en)
AT (1) ATE287028T1 (en)
DE (2) DE10212050B4 (en)
ES (1) ES2236633T3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP1921286A1 (en) * 2006-10-30 2008-05-14 Yamaha Hatsudoki Kabushiki Kaisha Exhaust system for motorcycle

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Publication number Priority date Publication date Assignee Title
DE102012006544B4 (en) * 2012-04-02 2015-12-31 Tenneco Gmbh Silencer with coupling tailpipe via coupling chamber

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Publication number Priority date Publication date Assignee Title
DE2914159B1 (en) * 1979-04-07 1980-10-16 Bayerische Motoren Werke Ag Exhaust silencer
EP0816649A1 (en) * 1996-07-05 1998-01-07 J. Eberspächer GmbH & Co. Absorption and reflection type silencer
EP1146206A2 (en) * 2000-04-14 2001-10-17 J. Eberspächer GmbH & Co. Multi-chamber built exhaust gas silencer

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AT394887B (en) * 1985-06-19 1992-07-10 Sebring Auspuff EXHAUST SILENCER
DE19706883C2 (en) * 1997-02-21 2002-10-24 Amc Gmbh Exhaust silencers for vehicles with internal combustion engines

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Publication number Priority date Publication date Assignee Title
DE2914159B1 (en) * 1979-04-07 1980-10-16 Bayerische Motoren Werke Ag Exhaust silencer
EP0816649A1 (en) * 1996-07-05 1998-01-07 J. Eberspächer GmbH & Co. Absorption and reflection type silencer
EP1146206A2 (en) * 2000-04-14 2001-10-17 J. Eberspächer GmbH & Co. Multi-chamber built exhaust gas silencer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1921286A1 (en) * 2006-10-30 2008-05-14 Yamaha Hatsudoki Kabushiki Kaisha Exhaust system for motorcycle
US7779963B2 (en) 2006-10-30 2010-08-24 Yamaha Hatsudoki Kabushiki Kaisha Exhaust system for motorcycle

Also Published As

Publication number Publication date
DE10212050A1 (en) 2003-10-16
ATE287028T1 (en) 2005-01-15
ES2236633T3 (en) 2005-07-16
EP1347155B1 (en) 2005-01-12
DE10212050B4 (en) 2008-07-31
EP1347155A3 (en) 2003-11-12
DE50300242D1 (en) 2005-02-17

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