EP0649982A1 - Résonateur branché en dérivation - Google Patents

Résonateur branché en dérivation Download PDF

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Publication number
EP0649982A1
EP0649982A1 EP94114289A EP94114289A EP0649982A1 EP 0649982 A1 EP0649982 A1 EP 0649982A1 EP 94114289 A EP94114289 A EP 94114289A EP 94114289 A EP94114289 A EP 94114289A EP 0649982 A1 EP0649982 A1 EP 0649982A1
Authority
EP
European Patent Office
Prior art keywords
resonator
volume
frequency
bellows
excitation frequency
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
EP94114289A
Other languages
German (de)
English (en)
Other versions
EP0649982B1 (fr
Inventor
Jiri Fiedler
Manfred Helget
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.)
Knecht Filterwerk GmbH
Original Assignee
Knecht Filterwerk 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 Knecht Filterwerk GmbH filed Critical Knecht Filterwerk GmbH
Publication of EP0649982A1 publication Critical patent/EP0649982A1/fr
Application granted granted Critical
Publication of EP0649982B1 publication Critical patent/EP0649982B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1222—Flow throttling or guiding by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • 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

Definitions

  • the invention relates to a shunt resonator according to the preamble of claim 1.
  • an intake silencer for internal combustion engines which has a shunt resonator in the area of the feed line to the carburetor.
  • JP-OS 58-93955 discloses a resonator which is still located in front of the air filter and whose volume is changed as a function of the speed of the motor with the aid of an actuating motor which moves a piston delimiting the resonator chamber.
  • the natural frequency of the resonator can be adapted to the respective excitation frequency in order to obtain optimal damping.
  • the disadvantage of this solution is that costly measurement and control technology has to be installed. For this reason, the proposed solution has been put into practice not yet implemented.
  • the invention is therefore concerned with the problem of providing a shunt resonator, the damping behavior of which can be adapted to different excitation frequencies and which can be produced particularly inexpensively, that is to say that it does not require any complex measurement and control technology.
  • the natural frequency is preferably adjusted automatically in that the resonator consists at least in part of an elastic bellows, the volume of which decreases with increasing speed as a result of the also increasing suction vacuum - with the build-up of a restoring force - and the spring characteristic of which runs such that the volume change as a result of the Increasing the speed leads to an adaptation of the natural frequency of the resonator to the increased excitation frequency.
  • the bellows can also represent only part of the resonator, e.g. B. the connecting pipe. Then the natural frequency of the resonator is adjusted by changing the length of the connecting tube.
  • the natural frequency of an intake silencer depends on the length l of the intake pipe, the volume V of the resonator and the cross section A of the intake pipe.
  • the natural frequency of the resonator can be adapted to the excitation frequency by targeted variation of one or more of the quantities mentioned, so that optimum damping is achieved in a broad frequency band.
  • the change in the resonator volume or in the other variables mentioned which influence the natural frequency takes place automatically without the interposition of a controller.
  • a particularly inexpensive embodiment of the invention is to use the negative pressure prevailing in the intake manifold to influence the parameters V, I and A mentioned.
  • a possible and inexpensive embodiment is the design of the resonator from an elastically deformable material in the form of a bellows, the volume of which changes depending on the negative pressure present.
  • a shunt resonator in the form of an elastic bellows 4 is connected to the intake pipe 3 between a reciprocating piston engine 1 and an air filter 2.
  • the changes in the resonator volume required for adapting the natural frequency to the excitation frequency are brought about by the negative pressure which arises in the intake manifold 3 as a function of the respective speed.
  • a higher negative pressure is created, so that the bellows 4 is built up by a contracting its spring characteristic dependent restoring force.
  • the negative pressure decreases and the restoring force increases the resonator volume.
  • the components of the travel limiter 5 and stop 6 are optionally provided only in the event that only two frequencies have to be particularly attenuated. It is then sufficient to design the resonator volume and the spring characteristic to the lower frequency to be damped and at the same time to select the spring characteristic so that the resonator reaches its smallest volume defined by path limiter 5 and stop 6 at the latest at the higher frequency to be damped.
  • This design therefore has the advantage that the spring characteristic only has to run through a certain point and may have a certain maximum slope, that is, it does not have to be defined exactly.

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)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Characterised By The Charging Evacuation (AREA)
EP94114289A 1993-10-22 1994-09-07 Résonateur branché en dérivation Expired - Lifetime EP0649982B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4336112 1993-10-22
DE4336112A DE4336112A1 (de) 1993-10-22 1993-10-22 Nebenschluß-Resonator

Publications (2)

Publication Number Publication Date
EP0649982A1 true EP0649982A1 (fr) 1995-04-26
EP0649982B1 EP0649982B1 (fr) 1996-12-04

Family

ID=6500799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114289A Expired - Lifetime EP0649982B1 (fr) 1993-10-22 1994-09-07 Résonateur branché en dérivation

Country Status (3)

Country Link
EP (1) EP0649982B1 (fr)
DE (2) DE4336112A1 (fr)
ES (1) ES2096389T3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641715A1 (de) * 1996-10-10 1998-04-16 Mann & Hummel Filter Ansaugsystem für eine Brennkraftmaschine
WO1999017012A1 (fr) * 1997-10-01 1999-04-08 Filterwerk Mann+Hummel Gmbh Silencieux avec resonateur a flux partiel
GB2357141A (en) * 1999-12-09 2001-06-13 Draftex Ind Ltd Combined resonator and coolant store for an IC engine
EP1158247A3 (fr) * 2000-05-26 2002-01-02 ALSTOM Power N.V. Dispositif pour la réduction des vibrations accoustiques dans une chambre de combustion
WO2002048998A1 (fr) * 2000-12-14 2002-06-20 ABB Fläkt AB Systeme de transport de fluide
FR2840652A1 (fr) * 2002-06-07 2003-12-12 Trelleborg Automotive France Dispositif d'attenuation des bruits issus du fonctionnement du moteur a combustion interne et/ou du systeme de climatisation d'un vehicule
EP1120774A3 (fr) * 2000-01-24 2004-11-03 EADS Deutschland Gmbh Absorbeur acoustique et procédé pour l'absorption sonore
CN102472264A (zh) * 2009-08-03 2012-05-23 皇家飞利浦电子股份有限公司 用于压缩机雾化器系统中的具有可调频率特性的低约束谐振器
EP3056723A1 (fr) * 2015-02-10 2016-08-17 MAHLE Filter Systems Japan Corporation Appareil de réduction de bruit d'admission pour moteur à combustion interne
EP3324033A1 (fr) * 2016-11-10 2018-05-23 MAHLE Filter Systems Japan Corporation Purification d'air pour moteur à combustion interne
US10738744B2 (en) 2016-11-16 2020-08-11 Ford Global Technologies, Llc Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521025A1 (de) * 1995-06-13 1996-12-19 Mann & Hummel Filter Rohrmodul
DE19543967B4 (de) * 1995-11-25 2006-10-12 Mahle Filtersysteme Gmbh Vorrichtung zur Dämpfung von Ansauggeräuschen sowie Verfahren zur Bemessung der Vorrichtung
DE19640980B4 (de) * 1996-10-04 2008-06-19 Alstom Vorrichtung zur Dämpfung von thermoakustischen Schwingungen in einer Brennkammer
DE19747245C1 (de) * 1997-10-25 1999-04-29 Bayerische Motoren Werke Ag Brennkraftmaschine mit einer Abgasrückführ-Vorrichtung, insbesondere Diesel-Brennkraftmaschine
KR100569901B1 (ko) * 2003-10-07 2006-04-10 현대자동차주식회사 소음저감형 흡기호스 구조
KR101211301B1 (ko) 2011-01-13 2012-12-11 엘에스엠트론 주식회사 공명기

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052169B (de) * 1954-04-20 1959-03-05 Sigismond Wilman Ansauggeraeuschdaempfer
FR1308738A (fr) * 1961-09-29 1962-11-09 Polycarbure Chambre d'expansion à résonance auto-réglable en fonction de la fréquence des pulsations, aménagée sur le parcours d'écoulement pulsatoire des fluides, et ses applications industrielles
JPS5332222A (en) * 1976-09-06 1978-03-27 Kawasaki Heavy Ind Ltd Intake air nozzle silencer for internal combustion engine
FR2394676A1 (fr) * 1977-06-17 1979-01-12 Lepape Roger Amortisseur de depression (antipollution)
EP0065076A2 (fr) * 1981-05-15 1982-11-24 Klöckner-Humboldt-Deutz Aktiengesellschaft Suralimentation par résonance avec système d'admission à géométrie variable
DE3300499A1 (de) * 1983-01-08 1984-07-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Schalldaempfer fuer von fluessigkeiten durchstroemte wege
JPH0219644A (ja) * 1988-07-06 1990-01-23 Toyoda Spinning & Weaving Co Ltd レゾネーター体型エアクリーナ
JPH04246221A (ja) * 1991-01-31 1992-09-02 Toyoda Gosei Co Ltd 消音装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539947A (en) * 1982-12-09 1985-09-10 Nippondenso Co., Ltd. Resonator for internal combustion engines
DD229187A1 (de) * 1984-11-26 1985-10-30 Schwermasch Liebknecht Veb K Einstellbarer schalldaempfer mit abzweigresonator fuer kraft- und arbeitsmaschinen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052169B (de) * 1954-04-20 1959-03-05 Sigismond Wilman Ansauggeraeuschdaempfer
FR1308738A (fr) * 1961-09-29 1962-11-09 Polycarbure Chambre d'expansion à résonance auto-réglable en fonction de la fréquence des pulsations, aménagée sur le parcours d'écoulement pulsatoire des fluides, et ses applications industrielles
JPS5332222A (en) * 1976-09-06 1978-03-27 Kawasaki Heavy Ind Ltd Intake air nozzle silencer for internal combustion engine
FR2394676A1 (fr) * 1977-06-17 1979-01-12 Lepape Roger Amortisseur de depression (antipollution)
EP0065076A2 (fr) * 1981-05-15 1982-11-24 Klöckner-Humboldt-Deutz Aktiengesellschaft Suralimentation par résonance avec système d'admission à géométrie variable
DE3300499A1 (de) * 1983-01-08 1984-07-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Schalldaempfer fuer von fluessigkeiten durchstroemte wege
JPH0219644A (ja) * 1988-07-06 1990-01-23 Toyoda Spinning & Weaving Co Ltd レゾネーター体型エアクリーナ
JPH04246221A (ja) * 1991-01-31 1992-09-02 Toyoda Gosei Co Ltd 消音装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 68 (M - 78) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 157 (M - 955)<4100> 27 March 1990 (1990-03-27) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 21 (M - 1353) 14 January 1993 (1993-01-14) *
Soviet Inventions Illustrated, Section Q, Woche 8650, 24 Dez. 86 Derwent Publications Ltd London GB. Klasse Q53, Nr86-330897/50 SU-A-1224432 (Kamsk Large Car Com) (15-04-86) *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641715A1 (de) * 1996-10-10 1998-04-16 Mann & Hummel Filter Ansaugsystem für eine Brennkraftmaschine
WO1999017012A1 (fr) * 1997-10-01 1999-04-08 Filterwerk Mann+Hummel Gmbh Silencieux avec resonateur a flux partiel
US6494290B1 (en) * 1997-10-01 2002-12-17 Filterwerk Mann & Hummel Gmbh Noise suppressor with a bypass resonator
GB2357141A (en) * 1999-12-09 2001-06-13 Draftex Ind Ltd Combined resonator and coolant store for an IC engine
EP1120774A3 (fr) * 2000-01-24 2004-11-03 EADS Deutschland Gmbh Absorbeur acoustique et procédé pour l'absorption sonore
EP1158247A3 (fr) * 2000-05-26 2002-01-02 ALSTOM Power N.V. Dispositif pour la réduction des vibrations accoustiques dans une chambre de combustion
US6634457B2 (en) 2000-05-26 2003-10-21 Alstom (Switzerland) Ltd Apparatus for damping acoustic vibrations in a combustor
WO2002048998A1 (fr) * 2000-12-14 2002-06-20 ABB Fläkt AB Systeme de transport de fluide
FR2840652A1 (fr) * 2002-06-07 2003-12-12 Trelleborg Automotive France Dispositif d'attenuation des bruits issus du fonctionnement du moteur a combustion interne et/ou du systeme de climatisation d'un vehicule
CN102472264A (zh) * 2009-08-03 2012-05-23 皇家飞利浦电子股份有限公司 用于压缩机雾化器系统中的具有可调频率特性的低约束谐振器
EP2462347A1 (fr) * 2009-08-03 2012-06-13 Koninklijke Philips Electronics N.V. Résonateur à faible restriction doté de caractéristiques de fréquence réglables et destiné à être utilisé dans des systèmes de nébuliseur à compresseur
CN102472264B (zh) * 2009-08-03 2016-01-20 皇家飞利浦电子股份有限公司 用于压缩机雾化器系统中的具有可调频率特性的低约束谐振器
US9790937B2 (en) 2009-08-03 2017-10-17 Koninklijke Philips N.V. Low restriction resonator with adjustable frequency characteristics for use in compressor nebulizer systems
EP3056723A1 (fr) * 2015-02-10 2016-08-17 MAHLE Filter Systems Japan Corporation Appareil de réduction de bruit d'admission pour moteur à combustion interne
CN105863906A (zh) * 2015-02-10 2016-08-17 株式会社马勒滤清系统 内燃机的吸气声降低装置
EP3324033A1 (fr) * 2016-11-10 2018-05-23 MAHLE Filter Systems Japan Corporation Purification d'air pour moteur à combustion interne
US10364779B2 (en) 2016-11-10 2019-07-30 Mahle Filter Systems Japan Corporation Air cleaner for internal combustion engine
US10738744B2 (en) 2016-11-16 2020-08-11 Ford Global Technologies, Llc Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

Also Published As

Publication number Publication date
DE59401202D1 (de) 1997-01-16
EP0649982B1 (fr) 1996-12-04
DE4336112A1 (de) 1995-04-27
ES2096389T3 (es) 1997-03-01

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