EP1321639A2 - Dispositif silencieux - Google Patents

Dispositif silencieux Download PDF

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Publication number
EP1321639A2
EP1321639A2 EP02017484A EP02017484A EP1321639A2 EP 1321639 A2 EP1321639 A2 EP 1321639A2 EP 02017484 A EP02017484 A EP 02017484A EP 02017484 A EP02017484 A EP 02017484A EP 1321639 A2 EP1321639 A2 EP 1321639A2
Authority
EP
European Patent Office
Prior art keywords
exhaust
exhaust gas
exhaust pipe
pipe
chamber
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
EP02017484A
Other languages
German (de)
English (en)
Other versions
EP1321639B2 (fr
EP1321639A3 (fr
EP1321639B1 (fr
Inventor
Rainer Diez
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.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen 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
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Application filed by Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP1321639A2 publication Critical patent/EP1321639A2/fr
Publication of EP1321639A3 publication Critical patent/EP1321639A3/fr
Application granted granted Critical
Publication of EP1321639B1 publication Critical patent/EP1321639B1/fr
Publication of EP1321639B2 publication Critical patent/EP1321639B2/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N1/08—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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/04—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet only in one direction

Definitions

  • the present invention relates to a sound attenuation device a silencer housing with at least one exhaust gas inlet opening and at least two exhaust gas outlet openings, in particular rear silencer a two-pipe exhaust system.
  • silencers create a back pressure that the Internal combustion engine power lowers.
  • an essentially straight first exhaust pipe which has an exhaust gas inlet opening connects a first exhaust outlet and its interior via at least one opening with the interior of the silencer housing in Connection is established, and that in the direction of flow behind the openings a shut-off device is arranged between the exhaust gas flow through the first exhaust outlet opening at least partially and a position releasing this is adjustable.
  • the exhaust back pressure in the first exhaust pipe is greatly reduced.
  • the first exhaust pipe in driving conditions with high exhaust noise at least partially blocked by the shut-off device so that the exhaust gas flow is at least largely through the second Exhaust outlet opening of the noise damping device must escape.
  • This can result in a high noise damping effect in these driving conditions can be achieved.
  • the shut-off device in their shut-off position are adjusted while they are in the high speed range, in which a large exhaust gas flow occurs releases the flow, so that the lowest possible back pressure is built up.
  • the invention Acoustic damping device therefore combines a relatively low power reduction of the internal combustion engine with a relatively high sound absorption.
  • the first exhaust pipe is preferably between the assigned exhaust gas inlet opening and the associated exhaust outlet as a continuous Tube formed, the first exhaust pipe in its wall in Flow direction in front of the shut-off device in particular at least has a perforated area.
  • the continuous training of the first exhaust pipe leads to a largely when the shut-off device is open trouble-free exhaust gas flow in the first exhaust pipe while the perforation in the wall of the first exhaust pipe when closed Shut-off device an outflow of the exhaust gas from the first exhaust pipe through the interior of the muffler housing through the allows second exhaust outlet.
  • the shut-off device of the sound damping device according to the invention is particularly adjustable depending on the engine speed. This means that the shut-off device can operate at low speeds Shut-off position and adjusted to its open position at high speeds in order to achieve high sound absorption at low speeds and on the other hand the lowest possible at high speeds To cause back pressure.
  • the shut-off device can also be adjustable depending on the load.
  • the shut-off device of the sound damping device according to the invention is preferably designed as an adjustable exhaust flap, for example via a connectable to the air intake line of the internal combustion engine Vacuum can is actuated.
  • Butterfly valves with vacuum boxes are in use and can therefore also be used for Purpose according to the invention can be used cheaply. You are also reliable, relatively inexpensive to manufacture and display sufficient longevity.
  • About the vacuum can in a speed-dependent adjustment of the exhaust flap in a simple manner can be achieved because the negative pressure in the air intake of the Internal combustion engine also increases with increasing speed.
  • a second exhaust pipe is preferably provided in the silencer housing, one end of which is connected to the second exhaust outlet, the second exhaust pipe having at least one opening with the openings of the first exhaust pipe is in flow connection.
  • Muffler means In order to there are various design options for the invention Muffler means.
  • the other End of the second exhaust pipe freely inside the muffler housing be arranged.
  • the silencer housing has only one exhaust gas inlet opening, but has two exhaust gas outlet openings, such as in two-pipe exhaust systems with two rear silencers, the are each connected to one of the two exhaust pipes. That through the Exhaust gas flowing into an exhaust gas inlet opening then flows when the exhaust gas is open Exhaust flap through both exhaust openings while it is at closed exhaust flap is forced out of the first exhaust pipe over the inside of the muffler housing into the second exhaust pipe flow to pass through this through the second exhaust outlet. In this second case, this results in a high level of sound absorption, while in the first case a particularly low exhaust back pressure given is.
  • the other end of the second exhaust pipe connected to a second exhaust gas inlet opening.
  • This variant is for two-pipe exhaust systems with only one rear silencer can be used by the sound attenuation device with their two exhaust gas inlet openings on one exhaust pipe of the two-pipe exhaust system is connected.
  • the second exhaust pipe can be like the first exhaust pipe between the exhaust gas inlet opening and the exhaust gas outlet opening be consistently formed and in its wall have at least one perforated area. With this configuration there is also a particularly low exhaust back pressure in the second exhaust pipe. When the first is closed, the perforated wall can be closed Exhaust pipe Exhaust gas from the first exhaust pipe via the second exhaust pipe flow out.
  • the second exhaust pipe formed in two parts, with a first part, one end of which with the second exhaust gas inlet is connected and the other end in Inside the muffler housing opens freely, and a second part, one end of which is connected to the second exhaust outlet opening and the other end inside the muffler housing free empties.
  • This two-part design of the second exhaust pipe can the sound damping effect of the sound damping device according to the invention to be influenced.
  • the free Ends of the two parts of the second exhaust pipe in a resonance chamber lead.
  • the noise damping device Over the length in particular of the second part of the second Exhaust pipe, the noise damping device can be tuned. That is, the frequency range in which the greatest sound damping effect occurs, can be selected based on its length and cross-section.
  • the silencer housing can additionally have at least one absorption chamber exhibit.
  • the two exhaust pipes are then preferred by the Absorption chamber passed through and point within it in their Wall at least one perforated area. Over the perforated Area is a flow connection to the absorption chamber given, so that additional sound absorption is achieved.
  • both exhaust pipes passed through two absorption chambers, between which a resonance chamber is arranged.
  • the resonance chamber open the free ends of the two parts of the second exhaust pipe and there is a perforated wall area of the first exhaust pipe.
  • exhaust gas can escape when the shut-off device is closed the first exhaust pipe into the resonance chamber and from this over the second part of the second exhaust pipe through the second exhaust outlet reach.
  • the three chambers are also each one perforated wall separated. This is how the two stand Absorption chambers with the resonance chamber and in flow communication with each other. It has been shown that through this structure a particularly good sound damping effect with relatively little Back pressure can be realized.
  • the silencing device shown comprises a silencer housing 1, which has a lower shell 2 and an upper shell 3, as can be seen in FIGS. 1 and 2.
  • the lower shell 2 and the upper shell 3 are connected to one another in their edge region, in particular welded.
  • On the exhaust gas outlet side of the silencer housing 1 two exhaust tailpipes 4, 5 are arranged.
  • the inside of the Silencer housing 1 is between the two exhaust gas inlet openings 6, 7 on the one hand and the two exhaust gas outlet openings 8 and 9 on the other hand through two spaced apart perforated walls 10 and 11 into one first chamber 12 on the exhaust gas inlet side, a second chamber following thereon 13 and a third chamber 14 on the exhaust gas outlet side.
  • the first chamber 12 and third chamber 14 are each as Absorption chamber formed and, as by cross hatching indicated, filled with a sound absorption material.
  • the in between lying second chamber 13, however, is designed as a reflection chamber.
  • the two hole walls 10 and 11 are also each on their side facing the absorption material with a steel wool mat 15, 16 occupied.
  • the three chambers 12, 13, 14 are of a continuous first Exhaust pipe 17 passes through, which is between the first exhaust gas inlet opening 6 and the first exhaust outlet opening 8 is arranged.
  • the first Exhaust pipe 17 consists of two parts, which are inserted into one another with a sliding seat are. As can also be seen in Fig. 3, the first exhaust pipe 17 except for a curved section in the region of the first exhaust gas outlet opening 8 just executed.
  • the wall of the first exhaust pipe has inside the first chamber 12 17 a perforated area 18. About this perforation 18 is the inside of the first exhaust pipe 17 with the inside of the first absorption chamber 12 in connection.
  • the wall of the first exhaust pipe 17 also has a perforated area 20 on which the inside of the first exhaust pipe 17 with the inside of the as Reflection chamber trained second chamber 13 is connected.
  • the first exhaust pipe 17 is outside the exhaust outlet Silencer housing 1 via a connecting pipe 21 to the first Exhaust tailpipe 4 connected, as can be seen in particular in Fig. 2.
  • connecting pipe 21 in the The area of the connecting pipe 21 is one with the air intake line a vacuum socket 22 which can be connected to an internal combustion engine, Via which an exhaust flap arranged within the connecting pipe 21 22a can be actuated. And that is the exhaust flap only indicated here 22a between a connecting tube 21 essentially locking and a releasing this position adjustable.
  • the first chamber 12 of the muffler housing 1 is furthermore from crosses a first part 23 'of a second exhaust pipe 23, the one end is connected to the second exhaust gas inlet opening 7 and the other end with its opening 24 'in the as a reflection chamber trained second chamber 13 opens freely.
  • the first part 23 'of the second exhaust pipe 23 has a inside the first chamber 12 perforated area 25 and is with a chrome steel wool sock 19th overdrawn.
  • the second chamber 13 also opens with its opening 24 " End of a second part 23 "of the second exhaust pipe 23, the other End is connected to the second exhaust outlet 9. Indeed is here as well as the first exhaust pipe 17 the exhaust outlet end led out of the muffler housing 1, as can be seen in Fig. 3 is.
  • the second part 23 "of the second exhaust pipe 23 both in the third chamber 14 and in the second chamber 13 curved and extends with its free end above the first exhaust pipe 17. In this way, a desired one Length of the second part 23 "of the second exhaust pipe for frequency tuning housed in silencer housing 1.
  • the second variant shown in FIG. 4 largely agrees with the variant of Fig. 3.
  • the only difference is that here the second part 23 'of the second exhaust pipe 23 is shorter than in the first variant. Accordingly, the second part 23 'of the second exhaust pipe 23 in the second chamber 13 straight and extends not over the first exhaust pipe 17. Due to the shorter design of the second part 23 "of the exhaust pipe is the sound damping device tuned another frequency. That is, the maximum sound attenuation takes place at a different frequency than the first variant.
  • the third variant shown in FIG. 5 also largely agrees with the the first variant of FIG. 3.
  • the second exhaust pipe 23 is not in two parts but consistently trained and essentially extends straight through all three chambers 12, 13 and 14. This configuration is also a relatively small in the second exhaust pipe 23 Back pressure generated.
  • resonance chamber 13 has second exhaust pipe 23 like the first exhaust pipe 17 in the resonance chamber 13 a perforated Area 26 on.
  • the exhaust flap 22a through the vacuum can 22 depending on Negative pressure in the air intake line of the engine and thus dependent adjusted by the engine speed.
  • the adjustment is made so that the Exhaust flap 22a at low speeds, the connecting pipe 21 between the first exhaust pipe 17 and the tail pipe 4 essentially closes, but releases at high speeds.
  • a high level of sound absorption is achieved in this way, because of the the exhaust gas flowing through the first exhaust pipe 17 does not pass through the first exhaust gas outlet opening 8 can escape.
  • the muffler housing 1 only one exhaust gas inlet opening 6.
  • the second is accordingly Exhaust pipe 23 is arranged with one end freely in the silencer housing 1. It opens there with its opening 24 in the interior of the resonance chamber 13.
  • the other end of the second exhaust pipe 23 is like the rest Variants connected to the second exhaust outlet 9.
  • the function is basically the same again.
  • the exhaust flap 22a adjusted by the vacuum box 22. At low speeds closes the exhaust flap 22a to the first exhaust outlet opening 8 connected branch 27a of the fork piece 27 while it this releases at high speeds. At low speeds this can Exhaust gas flowing in through the exhaust gas inlet opening 6 therefore only through the second exhaust pipe 23 and the second exhaust outlet 9 and the another branch 27b of the fork piece 27 escape. The sound damping effect is therefore high.
  • Exhaust flap 22a can also exhaust gas through the first exhaust opening 8 escape. The exhaust back pressure is therefore particularly low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Massaging Devices (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Percussion Or Vibration Massage (AREA)
EP02017484.3A 2001-12-18 2002-08-05 Dispositif silencieux Expired - Lifetime EP1321639B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20120470U DE20120470U1 (de) 2001-12-18 2001-12-18 Schalldämpfungseinrichtung
DE20120470U 2001-12-18

Publications (4)

Publication Number Publication Date
EP1321639A2 true EP1321639A2 (fr) 2003-06-25
EP1321639A3 EP1321639A3 (fr) 2003-10-01
EP1321639B1 EP1321639B1 (fr) 2009-10-14
EP1321639B2 EP1321639B2 (fr) 2018-03-21

Family

ID=7965310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017484.3A Expired - Lifetime EP1321639B2 (fr) 2001-12-18 2002-08-05 Dispositif silencieux

Country Status (4)

Country Link
EP (1) EP1321639B2 (fr)
AT (1) ATE445766T1 (fr)
DE (2) DE20120470U1 (fr)
ES (1) ES2334980T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054991A1 (de) * 2005-11-18 2007-05-24 Volkswagen Ag Abgasanlage und Verfahren zum Betreiben einer Abgasanlage
EP1914398A1 (fr) * 2006-10-21 2008-04-23 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Amortisseur de bruit secondaire de gaz d'échappement
WO2009113107A1 (fr) * 2008-02-28 2009-09-17 Tvs Motor Company Limited Système d'échappement à son variable pour véhicule
EP3263862A3 (fr) * 2016-05-09 2018-03-28 Eberspächer Exhaust Technology GmbH & Co. KG Amortisseur acoustique de gaz d'echappement pour un montage longitudinal dans un vehicule
CN110552756A (zh) * 2018-05-30 2019-12-10 上海天纳克排气系统有限公司 消声包

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1507071B2 (fr) 2003-08-11 2019-10-16 Faurecia Emissions Control Technologies, Germany GmbH Silencieux d'échappement
DE102006020155A1 (de) * 2005-12-15 2007-06-21 Friedrich Boysen Gmbh & Co. Kg Abgasanlage für Brennkraftmaschinen
DE102007007600A1 (de) * 2007-02-13 2008-08-14 J. Eberspächer GmbH & Co. KG Schalldämpfer für eine Abgasanlage
EP3514342B1 (fr) * 2018-01-22 2020-07-22 Eberspächer Exhaust Technology GmbH & Co. KG Amortisseur de bruit
DE102018104239A1 (de) 2018-01-22 2019-07-25 Eberspächer Exhaust Technology GmbH & Co. KG Schalldämpfer
JP6557372B1 (ja) 2018-02-15 2019-08-07 本田技研工業株式会社 消音器ユニット

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166408A (en) * 1938-09-01 1939-07-18 Burgess Battery Co Silencer
CA981033A (en) * 1974-02-25 1976-01-06 Leopold Aubin Systeme de chauffage et silencieux pour motoneige
DE3837677A1 (de) * 1987-11-17 1989-06-01 Volkswagen Ag Bei hohen betriebstemperaturen arbeitender schalldaempfer, insbesondere fuer eine kraftfahrzeug-brennkraftmaschine
US4913260A (en) * 1988-01-11 1990-04-03 Tenneco Inc. Gas silencing system with controlling sound attenuation
GB2223535A (en) * 1988-10-05 1990-04-11 Whau Chih Koa Exhaust silencer with back pressure control
US5014817A (en) * 1988-07-29 1991-05-14 Mazda Motor Corporation Engine exhaust apparatus and method
DE4140429A1 (de) * 1991-12-07 1993-06-09 Fa. J. Eberspaecher, 7300 Esslingen, De Schalldaempfer fuer verbrennungsmotore
DE19743446A1 (de) * 1997-05-26 1998-12-03 Bayerische Motoren Werke Ag Abgasanlage für eine Brennkraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0466710A (ja) * 1990-07-06 1992-03-03 Nissan Shatai Co Ltd マフラ装置
DE19935711C1 (de) * 1999-07-29 2000-12-28 Zeuna Staerker Kg Schalldämpfer mit variabler Dämpfungscharakteristik

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166408A (en) * 1938-09-01 1939-07-18 Burgess Battery Co Silencer
CA981033A (en) * 1974-02-25 1976-01-06 Leopold Aubin Systeme de chauffage et silencieux pour motoneige
DE3837677A1 (de) * 1987-11-17 1989-06-01 Volkswagen Ag Bei hohen betriebstemperaturen arbeitender schalldaempfer, insbesondere fuer eine kraftfahrzeug-brennkraftmaschine
US4913260A (en) * 1988-01-11 1990-04-03 Tenneco Inc. Gas silencing system with controlling sound attenuation
US5014817A (en) * 1988-07-29 1991-05-14 Mazda Motor Corporation Engine exhaust apparatus and method
GB2223535A (en) * 1988-10-05 1990-04-11 Whau Chih Koa Exhaust silencer with back pressure control
DE4140429A1 (de) * 1991-12-07 1993-06-09 Fa. J. Eberspaecher, 7300 Esslingen, De Schalldaempfer fuer verbrennungsmotore
DE19743446A1 (de) * 1997-05-26 1998-12-03 Bayerische Motoren Werke Ag Abgasanlage für eine Brennkraftmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
OLSZOK T ET AL: "EMTWICKLUNG, ERPROBUNG UND SERIENEINSATY EINES NEUARTIGEN SEMI-AKTIVEN SCHALLDAEMPFERS" ATZ AUTOMOBILTECHNISCHE ZEITSCHRIFT, FRANCKH'SCHE VERLAGSHANDLUNG. STUTTGART, DE, Bd. 101, Nr. 1, Januar 1999 (1999-01), Seiten 40-46, XP000793394 ISSN: 0001-2785 *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 270 (M-1266), 17. Juni 1992 (1992-06-17) & JP 04 066710 A (NISSAN SHATAI CO LTD), 3. März 1992 (1992-03-03) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054991A1 (de) * 2005-11-18 2007-05-24 Volkswagen Ag Abgasanlage und Verfahren zum Betreiben einer Abgasanlage
EP1914398A1 (fr) * 2006-10-21 2008-04-23 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Amortisseur de bruit secondaire de gaz d'échappement
JP2008101622A (ja) * 2006-10-21 2008-05-01 Dr Ing H C F Porsche Ag 排気ガスリアマフラー
US7562741B2 (en) 2006-10-21 2009-07-21 Dr. Ing. H.C. F. Porsche Ag Rear muffler assembly
WO2009113107A1 (fr) * 2008-02-28 2009-09-17 Tvs Motor Company Limited Système d'échappement à son variable pour véhicule
EP3263862A3 (fr) * 2016-05-09 2018-03-28 Eberspächer Exhaust Technology GmbH & Co. KG Amortisseur acoustique de gaz d'echappement pour un montage longitudinal dans un vehicule
CN110552756A (zh) * 2018-05-30 2019-12-10 上海天纳克排气系统有限公司 消声包

Also Published As

Publication number Publication date
EP1321639B2 (fr) 2018-03-21
DE50213918D1 (de) 2009-11-26
EP1321639A3 (fr) 2003-10-01
EP1321639B1 (fr) 2009-10-14
ATE445766T1 (de) 2009-10-15
DE20120470U1 (de) 2003-04-30
ES2334980T3 (es) 2010-03-18

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