EP1051562B1 - Silencieux avec resonateur en derivation - Google Patents

Silencieux avec resonateur en derivation Download PDF

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Publication number
EP1051562B1
EP1051562B1 EP98963457A EP98963457A EP1051562B1 EP 1051562 B1 EP1051562 B1 EP 1051562B1 EP 98963457 A EP98963457 A EP 98963457A EP 98963457 A EP98963457 A EP 98963457A EP 1051562 B1 EP1051562 B1 EP 1051562B1
Authority
EP
European Patent Office
Prior art keywords
sound
tubular elements
duct
silencer
resonator
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.)
Expired - Lifetime
Application number
EP98963457A
Other languages
German (de)
English (en)
Other versions
EP1051562A1 (fr
Inventor
Matthias Alex
Rolf Füsser
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.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel GmbH
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 Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Publication of EP1051562A1 publication Critical patent/EP1051562A1/fr
Application granted granted Critical
Publication of EP1051562B1 publication Critical patent/EP1051562B1/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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • 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
    • 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
    • F01N2490/20—Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers

Definitions

  • the invention relates to a silencer with a shunt resonator according to the genus of the main claim.
  • a resonator is known from DE 1 147 769 which is used for damping Sound frequencies are provided in flowing gases.
  • the resonator a resonator chamber arranged in a shunt around a gas-carrying line on.
  • Pipe elements originate from this gas-carrying line, which protrude into the cavity and the line with the cavity connect.
  • the dimensions of the pipe elements and their number will be determined by the desired resonance frequency.
  • the arrangement of several Pipe elements can be made in a plane perpendicular to the direction of flow. With further training, several rows lying next to each other can also be used be arranged by tubular elements.
  • the invention has for its object a silencer of the beginning mentioned type so that it is easy and inexpensive to manufacture can be.
  • the muffler according to the invention is advantageously suitable starting from of the generic type, the task with the characteristic Features to solve the main claim. Because the acoustically effective openings in the intake duct consist of tubular elements, that extend from the intake duct into the housing volume of the shunt resonator can extend through a suitable dimensioning and arrangement of these Pipe elements have a positive influence on the damping behavior.
  • the silencer according to the invention can be manufactured in that the area with the pipe elements in the sound-conducting duct as an injection molded part is insertable between two ends in the intake duct and that the enclosing Housing volume of the shunt resonator with one each Half of the housing are attached to one end of the channel and the two The halves of the housing, including the injection molded part, can be firmly joined together are.
  • the position of the tubular elements can be used advantageously to the resonance frequency in relation to the center of the shunt resonator in the longitudinal direction so be postponed that damping losses occurring through interaction with other components surrounding the silencer in frequency ranges are relocated, in which this does not interfere; in the best case can in turn lead to a gain in damping.
  • the sound-conducting channel the intake duct for the intake air of an internal combustion engine and the damping sound emissions are caused by the intake impulses of the individual
  • Cylinder especially a diesel engine.
  • the pipe elements are also manufactured separately and individually at the Manufacture of the injection molded part added and overmolded.
  • a growing length L of the tubular elements 6 can thus bring about a reduction in the resonance frequency f res .
  • This has advantages for use in internal combustion engines because the shunt resonator 10 mainly contributes to damping in its resonance range and the high sound energies occur in the intake duct at relatively low frequencies.
  • the length L of the individual tube elements 6 makes them acoustic overall effective length set. With a given housing volume V, one fixed diameter D of the tubular elements 6 and with a corresponding The selected length L of the tubular elements 6 can thus provide an optimal damping range for the silencer.
  • damping losses also occur with this arrangement.
  • the position of the so-called break-in frequencies f A and f B , at which these damping losses occur, can be influenced by the width and position of the area in which the tubular elements 6 are located in the intake duct 1 and thus also within the shunt resonator 10.
  • the dimension a shown in FIG. 1 and the number z of the tubular elements 6 can be changed here in such a way that the undesired damping losses are shifted into frequency ranges in which this is less disturbing. If, for example, the number z of the rows or the diameter D of the tubular elements 6 is increased, the resonance frequency f res becomes larger because of the thus increased acoustically effective area A. However, if the position of the area of the tubular elements 6 is changed from the central position in the shunt resonator 10, then there is no influence to be considered on the resonance frequency f res , but it does affect the position of the break-in frequencies f A and f B. The decisive factor here is dimension a, which indicates the position of the area of the tubular elements 6 relative to the exciter side in the intake duct 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)

Claims (5)

  1. Silencieux équipé d'un résonateur en dérivation selon lequel
    le résonateur en dérivation (10) est un boítier formant un volume, extérieur, entourant dans une zone prédéterminée le canal du son (1) et
    le canal du son (1) est relié au résonateur en dérivation (10) par des ouvertures (6),
    les ouvertures sont formées par des éléments tubulaires (6) partant du canal du son (1) pour déboucher dans le volume du boítier formant le résonateur en dérivation (10),
    caractérisé en ce que
    la zone du canal du son (1), munie des éléments tubulaires (6), est insérée comme pièce injectée (5) entre deux extrémités (3, 4) du canal (1) et
    le volume de boítier enveloppant formant le résonateur en dérivation (10) est monté chaque fois avec une moitié de boítier (7, 8) à chaque extrémité (3, 4) du canal (1) et les deux moitiés de boítier (7, 8) sont réunies solidairement en emprisonnant la pièce injectée (5).
  2. Silencieux selon la revendication 1,
    caractérisé en ce que
    le nombre et la position des éléments tubulaires (6) ainsi que leur longueur (L) et leur diamètre (D) sont choisis pour que leur gain d'amortissement acoustique se développe dans une plage de fréquences prédéterminée.
  3. Silencieux selon l'une quelconque des revendications 1 ou 2,
    caractérisé en ce que
    la position des éléments tubulaires (6) par rapport au milieu du résonateur en dérivation (10), dans la direction longitudinale, est choisie pour que les pertes par amortissement produit soient déplacées dans des plages de fréquences qui, en coopérant avec les pièces entourant le silencieux, se traduisent de nouveau par un gain d'amortissement.
  4. Silencieux selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le canal du son est le canal d'admission (1) de l'air aspiré par un moteur à combustion interne et les émissions sonores à amortir sont engendrées par les impulsions d'aspiration des différents cylindres, notamment d'un moteur Diesel.
  5. Silencieux selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les éléments tubulaires (6) sont fabriqués séparément et sont ajoutés séparément lors de la réalisation de la pièce injectée (5) pour être enrobés par injection.
EP98963457A 1997-11-24 1998-11-14 Silencieux avec resonateur en derivation Expired - Lifetime EP1051562B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19751940A DE19751940C1 (de) 1997-11-24 1997-11-24 Schalldämpfer mit einem Nebenschlußresonator
DE19751940 1997-11-27
PCT/EP1998/007296 WO1999027237A1 (fr) 1997-11-24 1998-11-14 Silencieux avec resonateur en derivation

Publications (2)

Publication Number Publication Date
EP1051562A1 EP1051562A1 (fr) 2000-11-15
EP1051562B1 true EP1051562B1 (fr) 2002-03-06

Family

ID=7849612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98963457A Expired - Lifetime EP1051562B1 (fr) 1997-11-24 1998-11-14 Silencieux avec resonateur en derivation

Country Status (8)

Country Link
US (1) US6341663B1 (fr)
EP (1) EP1051562B1 (fr)
JP (1) JP2001524635A (fr)
BR (1) BR9815023A (fr)
CA (1) CA2311383C (fr)
DE (2) DE19751940C1 (fr)
ES (1) ES2174526T3 (fr)
WO (1) WO1999027237A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101466949B (zh) * 2006-05-03 2012-01-25 惠而浦股份有限公司 用于制冷压缩机的声学消声器中的谐振器装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19902951A1 (de) * 1999-01-26 2000-07-27 Mann & Hummel Filter Ansaugvorrichtung mit einem Leitungsabschnitt zur Dämpfung des Ansauggeräusches
AU7772600A (en) * 1999-10-11 2001-04-23 Silentor Holding A/S A silencer
US8820325B2 (en) * 2002-10-11 2014-09-02 The Regents Of The University Of California Bymixer apparatus and method for fast-response, adjustable measurement of mixed gas fractions in ventilation circuits
DE202005007714U1 (de) * 2005-05-11 2006-09-21 Mann + Hummel Gmbh Schalldämpfer
KR100710342B1 (ko) * 2006-02-07 2007-04-23 엘지전자 주식회사 소음기
KR101807783B1 (ko) * 2012-06-18 2018-01-18 목포해양대학교 산학협력단 공명통을 이용한 선박 프로펠러용 방음 덕트
KR101823215B1 (ko) * 2013-02-12 2018-03-08 포레시아 이미션스 컨트롤 테크놀로지스, 유에스에이, 엘엘씨 공진 감쇠 기능을 갖춘 차량용 배기 시스템
CN104500178B (zh) * 2013-11-27 2016-11-09 广东西电动力科技股份有限公司 一种防治柴油发电机组低频噪声的复合式消声器
JP7005866B2 (ja) * 2016-03-14 2022-01-24 株式会社竹中工務店 排気音低減装置
KR101943607B1 (ko) * 2017-05-18 2019-01-29 성균관대학교산학협력단 음향 공진장치
DE102017130661A1 (de) * 2017-12-20 2019-06-27 Montaplast Gmbh Breitbanddämpfer für einen Kraftfahrzeug-Motor
DE102022001220A1 (de) * 2022-04-09 2023-10-12 Hydac Technology Gmbh Dämpfungsvorrichtung

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE739460C (de) * 1940-07-30 1943-09-27 Eberspaecher J Schalldaempfung in Leitungen mit glattem Durchgang, an welche Resonatoren verschiedener Eigenfrequenz angeschlossen sind
US2765044A (en) * 1951-07-18 1956-10-02 Hatte Jacques Louis Sound filtering apparatus
DE1147769B (de) * 1959-04-10 1963-04-25 Sulzer Ag Resonator
DE1244476B (de) * 1960-12-23 1967-07-13 Sulzer Ag Auspuffschalldaempfer
DE2508261A1 (de) * 1975-02-26 1976-09-09 Karl Wilhelm Dipl Sessinghaus Auspufftopf fuer brennkraftmaschinen
US4231447A (en) * 1978-04-29 1980-11-04 Rolls-Royce Limited Multi-layer acoustic linings
IT7853327V0 (it) * 1978-05-17 1978-05-17 Fiat Spa Silenziatore di scarico per trattori agricoli
CH647302A5 (de) * 1979-06-06 1985-01-15 Alusuisse Vorrichtung zum ableiten der abgase von verbrennungskraftmaschinen.
JPH07101002B2 (ja) * 1987-12-22 1995-11-01 日産自動車株式会社 共鳴型消音器
DE9419022U1 (de) * 1994-11-26 1995-01-26 Fa. J. Eberspächer, 73730 Esslingen Resonator-Schalldämpfer
US5545860A (en) * 1995-02-21 1996-08-13 Ford Motor Company Discharge muffler for an automotive compressor and method for making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101466949B (zh) * 2006-05-03 2012-01-25 惠而浦股份有限公司 用于制冷压缩机的声学消声器中的谐振器装置

Also Published As

Publication number Publication date
DE59803310D1 (de) 2002-04-11
JP2001524635A (ja) 2001-12-04
CA2311383A1 (fr) 1999-06-03
CA2311383C (fr) 2007-05-15
DE19751940C1 (de) 1999-03-25
BR9815023A (pt) 2002-04-30
WO1999027237A1 (fr) 1999-06-03
EP1051562A1 (fr) 2000-11-15
US6341663B1 (en) 2002-01-29
ES2174526T3 (es) 2002-11-01

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