EP0047678A1 - Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen - Google Patents
Abgas-Schalldämpfer mit innenliegender Resonanzkammer für Brennkraftmaschinen Download PDFInfo
- 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
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 230000008901 benefit Effects 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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)
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)
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1044068B (it) * | 1974-11-12 | 1980-03-20 | Renault | Silenziatore per motore a combustions |
-
1980
- 1980-09-08 FR FR8019339A patent/FR2489881A1/fr active Granted
-
1981
- 1981-07-01 DE DE8181401055T patent/DE3166018D1/de not_active Expired
- 1981-07-01 EP EP81401055A patent/EP0047678B1/de not_active Expired
- 1981-09-08 US US06/299,935 patent/US4381832A/en not_active Expired - Fee Related
Patent Citations (5)
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)
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 |
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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 |
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17P | Request for examination filed |
Effective date: 19811127 |
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AK | Designated contracting states |
Designated state(s): DE GB IT |
|
ITF | It: translation for a ep patent filed | ||
GRAA | (expected) grant |
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|
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 |
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REF | Corresponds to: |
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STAA | Information on the status of an ep patent application or granted ep patent |
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26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
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GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
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