EP1347155A2 - Silencieux d'échappement - Google Patents

Silencieux d'échappement Download PDF

Info

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
Authority
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
Other languages
German (de)
English (en)
Other versions
EP1347155B1 (fr
EP1347155A3 (fr
Inventor
Jörg Winkel
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1347155A2 publication Critical patent/EP1347155A2/fr
Publication of EP1347155A3 publication Critical patent/EP1347155A3/fr
Application granted granted Critical
Publication of EP1347155B1 publication Critical patent/EP1347155B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features 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 exhaust 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 exhaust 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)
EP03003086A 2002-03-19 2003-02-13 Silencieux d'échappement Expired - Lifetime EP1347155B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10212050A DE10212050B4 (de) 2002-03-19 2002-03-19 Nachschalldämpfer
DE10212050 2002-03-19

Publications (3)

Publication Number Publication Date
EP1347155A2 true EP1347155A2 (fr) 2003-09-24
EP1347155A3 EP1347155A3 (fr) 2003-11-12
EP1347155B1 EP1347155B1 (fr) 2005-01-12

Family

ID=27771417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003086A Expired - Lifetime EP1347155B1 (fr) 2002-03-19 2003-02-13 Silencieux d'échappement

Country Status (4)

Country Link
EP (1) EP1347155B1 (fr)
AT (1) ATE287028T1 (fr)
DE (2) DE10212050B4 (fr)
ES (1) ES2236633T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1921286A1 (fr) * 2006-10-30 2008-05-14 Yamaha Hatsudoki Kabushiki Kaisha Système d'échappement pour motocyclette

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006544B4 (de) 2012-04-02 2015-12-31 Tenneco Gmbh Schalldämpfer mit Ankopplung Endrohr über Kopplungskammer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914159C2 (de) * 1979-04-07 1981-07-09 Bayerische Motoren Werke AG, 8000 München Abgasschalldämpfer
AT394887B (de) * 1985-06-19 1992-07-10 Sebring Auspuff Abgasschalldaempfer
DE19627079A1 (de) * 1996-07-05 1998-01-08 Eberspaecher J Gmbh & Co Absorptions-/Reflexions-Schalldämpfer
DE19706883C2 (de) * 1997-02-21 2002-10-24 Amc Gmbh Abgas-Schalldämpfer für Kraftfahrzeuge mit Verbrennungsmotoren
DE50110583D1 (de) * 2000-04-14 2006-09-14 Eberspaecher J Gmbh & Co Abgas-Schalldämpfer in Mehrkammerbauweise

Cited By (2)

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

Also Published As

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

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