EP0047678A1 - Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen - Google Patents

Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen Download PDF

Info

Publication number
EP0047678A1
EP0047678A1 EP81401055A EP81401055A EP0047678A1 EP 0047678 A1 EP0047678 A1 EP 0047678A1 EP 81401055 A EP81401055 A EP 81401055A EP 81401055 A EP81401055 A EP 81401055A EP 0047678 A1 EP0047678 A1 EP 0047678A1
Authority
EP
European Patent Office
Prior art keywords
stage
resonator
silencer
reflection
envelope
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
EP81401055A
Other languages
English (en)
French (fr)
Other versions
EP0047678B1 (de
Inventor
Jean Rauch
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0047678A1 publication Critical patent/EP0047678A1/de
Application granted granted Critical
Publication of EP0047678B1 publication Critical patent/EP0047678B1/de
Expired 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • 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
    • F01N1/06—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
    • 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
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • 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
    • 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 field concerned by this invention is that of exhaust silencers intended to equip internal combustion engines.
  • FIG. 1 attached shows a known silencer comprising an envelope. Separated by a transverse partition C into two parts: a first, located on the left in the drawing, in which are arranged the means fulfilling the functions of reflection and interference, and a second. located on the right, which is the Helmholtz resonator.
  • This known arrangement has the disadvantage of shortening, for a given total length of silencer, the length of 1 "reflection and interference stage of the length of the resonator stage.
  • the attenuation of the components of medium frequencies whose energy lies midway between those of the bass and treble, obtained in the reflection and interference stage is all the more effective the longer this stage is.
  • the object of this invention is therefore to produce a silencer of the type comprising a reflection and interference stage and at least one resonator of Helmholtz, which, with equal total dimensions, offers improved attenuation characteristics.
  • an exhaust silencer for internal combustion engine comprising an envelope formed by a side wall and two end walls defining at least a first attenuation stage with reflection and / or interference and at least a second stage constituting a Helmholtz resonator, formed by an enclosure and a neck constituting a pressure tap communicating with the first stage, characterized in that the pressure tap of the second stage is carried out from a wall end of the envelope by means of a neck located at least partially outside the envelope and the enclosure of the resonator is arranged inside the first stage.
  • the latter relates to a silencer comprising an envelope 1 closed at its two ends by two walls 2 and 3. Furthermore, this envelope is separated by three partitions 4, 5 and 6 into four chambers respectively bearing the references 7, 8, 9 and 10. It is completed by three tubes or pipes, a tube of inlet 11, an intermediate tube 12 and an outlet tube 13 which are provided, in a conventional manner, with orifices or openings as designated for example by the references 14, 15 and 16.
  • the orifices 14 constitute with a section of outer tube 17 a high frequency resonator, the set of three tubes 11, 12, 13, with their orifices and the volumes which surround them further constituting a reflection and interference attenuation stage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
EP81401055A 1980-09-08 1981-07-01 Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen Expired EP0047678B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8019339A FR2489881A1 (fr) 1980-09-08 1980-09-08 Silencieux d'echappement a resonateur incorpore, pour moteur a combustion
FR8019339 1980-09-08

Publications (2)

Publication Number Publication Date
EP0047678A1 true EP0047678A1 (de) 1982-03-17
EP0047678B1 EP0047678B1 (de) 1984-09-12

Family

ID=9245729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401055A Expired EP0047678B1 (de) 1980-09-08 1981-07-01 Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen

Country Status (4)

Country Link
US (1) US4381832A (de)
EP (1) EP0047678B1 (de)
DE (1) DE3166018D1 (de)
FR (1) FR2489881A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274659A1 (de) * 1986-12-09 1988-07-20 Leistritz Aktiengesellschaft Absorptions-/Reflexions-Abgasschalldämpfer
WO1992015088A1 (en) * 1991-02-21 1992-09-03 Lotus Cars Limited Method and apparatus for attenuating acoustic vibrations in a medium
CN103362600A (zh) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 消音筒
CN111503410A (zh) * 2020-04-01 2020-08-07 西安交通大学 一种赫姆霍兹型消声器
US10975743B1 (en) 2020-03-13 2021-04-13 Tenneco Automotive Operating Company Inc. Vehicle exhaust component
US11199116B2 (en) 2017-12-13 2021-12-14 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11268430B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with welded edges
US11268429B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with inwardly turned edges
US11365658B2 (en) 2017-10-05 2022-06-21 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11702969B2 (en) 2017-10-05 2023-07-18 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162621A (en) * 1990-10-16 1992-11-10 Siemens Automotive Limited Internal sidebranch resonator
US5625172A (en) * 1995-04-18 1997-04-29 Caterpillar Inc. Engine enclosure air inlet/discharge sound attenuator
GB9522724D0 (en) * 1995-11-06 1996-01-10 Acts Ltd A noise attenuator for an induction system or an exhaust system
US7870930B2 (en) * 2005-09-02 2011-01-18 Emcon Technologies Llc Exhaust system with external helmholtz resonator and associated method
US20070125594A1 (en) * 2005-12-01 2007-06-07 Hill William E Muffler assembly with sound absorbing member
US20090000863A1 (en) * 2007-06-28 2009-01-01 Share Win Industry Co., Ltd. Exhaust pipe
KR101251728B1 (ko) * 2010-09-07 2013-04-05 현대자동차주식회사 차량용 소음기
US8191676B2 (en) 2010-11-04 2012-06-05 Ford Global Technologies, Llc Resonator for a dual-flow exhaust system
KR101407222B1 (ko) * 2012-05-11 2014-06-13 손계동 멀티 배기 타입 차량용 머플러
KR101526753B1 (ko) * 2013-12-19 2015-06-05 현대자동차주식회사 차량용 소음기
FR3092361B1 (fr) 2019-02-05 2021-05-21 Akwel Résonateur acoustique
KR20210138910A (ko) * 2020-05-13 2021-11-22 현대자동차주식회사 차량의 배기계 소음 저감 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263608A (fr) * 1960-07-22 1961-06-09 Sial S A Dispositif permettant d'améliorer les conditions d'écoulement d'un flux gazeux à caractère périodique
GB1037352A (en) * 1963-03-19 1966-07-27 Walker Mfg Co Improvements in or relating to sound-attenuating mufflers
US3447629A (en) * 1967-02-06 1969-06-03 Arvin Ind Inc Automotive exhaust system and muffler therefor
FR2131431A5 (de) * 1972-02-14 1972-11-10 Motor Condensator Walter
FR2324865A1 (fr) * 1974-11-12 1977-04-15 Peugeot & Renault Silencieux pour moteur a combustion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1044068B (it) * 1974-11-12 1980-03-20 Renault Silenziatore per motore a combustions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263608A (fr) * 1960-07-22 1961-06-09 Sial S A Dispositif permettant d'améliorer les conditions d'écoulement d'un flux gazeux à caractère périodique
GB1037352A (en) * 1963-03-19 1966-07-27 Walker Mfg Co Improvements in or relating to sound-attenuating mufflers
US3447629A (en) * 1967-02-06 1969-06-03 Arvin Ind Inc Automotive exhaust system and muffler therefor
FR2131431A5 (de) * 1972-02-14 1972-11-10 Motor Condensator Walter
FR2324865A1 (fr) * 1974-11-12 1977-04-15 Peugeot & Renault Silencieux pour moteur a combustion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274659A1 (de) * 1986-12-09 1988-07-20 Leistritz Aktiengesellschaft Absorptions-/Reflexions-Abgasschalldämpfer
WO1992015088A1 (en) * 1991-02-21 1992-09-03 Lotus Cars Limited Method and apparatus for attenuating acoustic vibrations in a medium
CN103362600A (zh) * 2013-07-25 2013-10-23 成都陵川特种工业有限责任公司 消音筒
US11365658B2 (en) 2017-10-05 2022-06-21 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11702969B2 (en) 2017-10-05 2023-07-18 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11199116B2 (en) 2017-12-13 2021-12-14 Tenneco Automotive Operating Company Inc. Acoustically tuned muffler
US11268430B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with welded edges
US11268429B2 (en) 2019-01-17 2022-03-08 Tenneco Automotive Operating Company Inc. Diffusion surface alloyed metal exhaust component with inwardly turned edges
US10975743B1 (en) 2020-03-13 2021-04-13 Tenneco Automotive Operating Company Inc. Vehicle exhaust component
CN111503410A (zh) * 2020-04-01 2020-08-07 西安交通大学 一种赫姆霍兹型消声器

Also Published As

Publication number Publication date
FR2489881A1 (fr) 1982-03-12
DE3166018D1 (en) 1984-10-18
EP0047678B1 (de) 1984-09-12
US4381832A (en) 1983-05-03
FR2489881B1 (de) 1984-04-13

Similar Documents

Publication Publication Date Title
EP0047678B1 (de) Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen
EP1070903B1 (de) Gerät zur Lärmdämpfung eines mit Gas beaufschlagten Rohres
EP0057623B1 (de) Abgassschalldämpfer einer Wärmekraftmaschine
EP0890026B1 (de) Ansauggeräuschdämpfersystem für motorkühlverdichter
EP0243559B1 (de) Schalldämpfer für Gasstrom
US2099887A (en) Muffler
EP3303815B1 (de) Vorrichtung zur dämpfung von verbreiteten und abgestrahlten leitungsgeräuschen
FR2816991A1 (fr) Dispositif formant silencieux, notamment pour un moteur turbo
EP1433948B1 (de) Luftansaugdämpfungsanlage
US2337300A (en) Muffler
FR2713702A1 (fr) Silencieux pour courant gazeux.
CA2761601C (fr) Turbomoteur comportant un cone de guidage des gaz d'echappement avec un attenuateur sonore
FR2713701A1 (fr) Silencieux pour courant gazeux.
EP3450739B1 (de) Filteranordnung
FR3092361A1 (fr) Résonateur acoustique
EP0020823A1 (de) Abgasschalldämpfer für einen Motor
FR2678681A1 (fr) Silencieux pour moteur a explosion.
FR2462553A1 (fr) Silencieux pour gaz d'echappement
FR2601070A1 (fr) Silencieux pour les gaz d'echappement des moteurs thermiques.
FR2464365A1 (fr) Silencieux d'echappement pour moteur a combustion interne
FR2894645A1 (fr) Conduit de transport de gaz ayant un ecoulement a pression variable avec attenuation acoustique integree
FR2707341A1 (fr) Silencieux pour gaz d'échappement.
BE425549A (de)
EP3636909A1 (de) Vorrichtung zur lärmreduzierung für einspeiseleitung eines wärmeverbrennungsmotors, der mit einem turbokompressor ausgestattet ist
FR2636369A1 (fr) Chambre d'attenuation du son engendre par les gaz d'echappement 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

17P Request for examination filed

Effective date: 19811127

AK Designated contracting states

Designated state(s): DE GB IT

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Owner name: AUTOMOBILES CITROEN

Owner name: AUTOMOBILES PEUGEOT

AK Designated contracting states

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 3166018

Country of ref document: DE

Date of ref document: 19841018

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

Ref country code: DE

Payment date: 19890616

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: 19890630

Year of fee payment: 9

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900701

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910403