EP1352172B1 - Silencieux comportant une pluralite de chambres de resonance - Google Patents

Silencieux comportant une pluralite de chambres de resonance Download PDF

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Publication number
EP1352172B1
EP1352172B1 EP02701191A EP02701191A EP1352172B1 EP 1352172 B1 EP1352172 B1 EP 1352172B1 EP 02701191 A EP02701191 A EP 02701191A EP 02701191 A EP02701191 A EP 02701191A EP 1352172 B1 EP1352172 B1 EP 1352172B1
Authority
EP
European Patent Office
Prior art keywords
sound absorber
hollow body
helmholtz resonators
absorber according
component
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.)
Revoked
Application number
EP02701191A
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German (de)
English (en)
Other versions
EP1352172A1 (fr
Inventor
Thomas Zirkelbach
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.)
Mahle Filtersysteme GmbH
Original Assignee
Mahle Filtersysteme 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
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Application filed by Mahle Filtersysteme GmbH filed Critical Mahle Filtersysteme GmbH
Publication of EP1352172A1 publication Critical patent/EP1352172A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
Revoked 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
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/026—Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust passage
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
    • 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
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • 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
    • F02M35/1261—Helmholtz resonators
    • 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
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • 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
    • F02M35/14—Combined air cleaners and silencers

Definitions

  • the invention relates to a silencer on or in a Component in which there is a sound to be damped, in particular Airborne sound, spreads.
  • Silencers are used, for example, in internal combustion engines used to reduce noise emissions to the environment.
  • silencers are in an exhaust tract an internal combustion engine arranged around the engine generated and propagated sound to dampen.
  • Silencers also come in motor vehicles in a fresh air tract of the internal combustion engine for use, to e.g. one charged with an exhaust gas turbocharger Internal combustion engine generated by the turbocharger and dampen sound propagating in the fresh air tract.
  • Helmholtz resonators To attenuate sound that propagates in a line, are so-called “shunt resonators” or “Helmholtz resonators” known.
  • a Helmholtz resonator consists essentially of a cavity that has a Connection opening communicates with the inside of the line, in which the sound to be damped spreads, whereby the The cavity is otherwise closed. The one enclosed in the cavity The gas volume acts as a "spring” and the gas volume in the connection opening acts as a “mass”, causing an oscillatory system is formed.
  • This vibration system can be excited to vibrate by sound waves, whereby energy is extracted from the sound waves, i.e. the Sound is dampened.
  • the damping effect of such Helmholtz resonator is on a certain frequency or limited to a specific frequency band.
  • the frequency or the frequency band in which the Helmholtz resonator is Damping effect depends, e.g. from the geometry, the cross section, the length and thus the volume of the cavity and the connection opening of the Helmholtz resonator from.
  • a Helmholtz resonator can have its damping effect on best unfold when it is positioned on the line is that its connection opening is right there with the Inside the line communicates where in the line one Antinode of a standing sound wave from that Has formed frequency that attenuated by the Helmholtz resonator shall be.
  • a silencer of the type mentioned is disclosed DE-A-1 981 8873.
  • the present invention addresses the problem an embodiment for such a silencer specify which is relatively easy to assemble and / or can be integrated and has a high damping effect guaranteed.
  • a silencer is said be specified, the improved damping effect and in particular has an increased broadband effect.
  • the muffler should be particularly inexpensive to manufacture his.
  • this problem is solved by a silencer solved with the characterizing features of claim 1.
  • the invention is based on the general idea of a Silencer with several, especially with a multitude, To equip Helmholtz resonators arranged together are and parallel to each other their sound absorbing effect unfold.
  • a compact design results when neighboring Adjacent Helmholtz resonators. It is advantageous an embodiment in which the adjacent Helmholtz resonators common walls or common Own wall sections. This will manufacture the Helmholtz resonators simplified.
  • the damping effect, especially the broadband effect, of the silencer according to the invention can improve at least some of the Helmholtz resonators differ from each other distinguish that their cavities and / or their Connection openings of different lengths and / or cross sections and / or have geometries and / or orientations.
  • silencer can e.g. at Exhaust fans, cooling fans, air extraction systems, air conditioning systems, Computers are used to target specific ones Dampen frequencies.
  • the silencer 1 can be a silencer according to the invention 1 in an internal combustion engine 2 to be used there Attenuate sound that is essentially from an exhaust gas turbocharger 3 of the internal combustion engine 2 is generated.
  • the silencer For this purpose, 1 is in a fresh air tract 4 downstream of an air filter 5 and upstream of a compressor 6 of the exhaust gas turbocharger 3 arranged.
  • the silencer 1 in a component, namely in a line 7 of the fresh air tract 4 installed is thus the one in the fresh air tract 4 air flows through and forms a component of the line 7.
  • the turbocharger 3 generated sound propagates through line 7, counter the direction of flow and would - in the absence of a silencer 1 - reach the air filter 5 relatively undamped and finally exit into the environment.
  • the silencer 1 is preferably as close as possible positioned at the sound source whose sound is damped should, so here, close to the exhaust gas turbocharger 3.
  • the arrangement shown in FIG. 1 is preferably found in a motor vehicle again that the internal combustion engine 2 contains as a drive motor.
  • the invention is also applicable to stationary internal combustion engines 2. With this one
  • the embodiment shown is essentially that of the exhaust gas turbocharger 3 generated higher frequency sound at least in certain frequencies are damped. It is also e.g. possible for an internal combustion engine without an exhaust gas turbocharger, that of the internal combustion engine or components thereof, e.g. generated by the valves of the internal combustion engine 2 Dampen sound.
  • the silencer according to the invention 1 a tubular hollow body 8, which is a component the line 7 forms in which the silencer 1 is installed or is involved.
  • the hollow body 8 can how here, be cylindrical. Other embodiments e.g. with a conical hollow body are also possible.
  • Axial section 9 of the hollow body 8 which extends along here of the entire hollow body 8 extends are on an outside of the hollow body 8 a variety of Helmholtz resonators 10 one behind the other in the axial direction and in the circumferential direction arranged side by side.
  • Each of these Helmholtz resonators 10 has a cavity 11, and each of these cavities 11 communicates with via a single connection opening 12 an interior 13 of the hollow body 8 Cavities 11 of the Helmholtz resonators 10 are closed.
  • the inventive Silencer 1 especially at higher frequencies, e.g. from 900 Hz, develop a relatively strong damping effect, which is due to the large number of individual, effective in parallel Helmholtz resonators 10 is returned.
  • zones 14 can be formed, in each case side by side and Helmholtz resonators arranged one behind the other 10 are formed. These zones extend 14 only partially along the circumference of the hollow body 8 and 3 are opposite one another on the hollow body 8 arranged.
  • a single zone 14 may be formed, which extend along the entire circumference of the hollow body 8 and thus extends in the circumferential direction completely encloses. Accordingly, they are Helmholtz resonators 10 along the entire circumference side by side arranged on the hollow body 8.
  • Other embodiments can also have more than two such zones 14.
  • FIG. 3 shows an embodiment in which the Helmholtz resonators 10 or their cavities 11 and their connecting openings 12 radially to a longitudinal axis 15 of the hollow body 8 are aligned.
  • adjacent borders Helmholtz resonators 10 against each other.
  • adjacent Helmholtz resonators 10 common Walls or wall sections 16, whereby their Manufacturing simplified.
  • the cavities 11 can Helmholtz resonators 10 basically any cross sections exhibit. However, circular, rectangular ones are preferred or hexagonal cross sections.
  • At least some of the Helmholtz resonators 10 can differ from each other by their cavities 11 and / or their connecting openings 12 different lengths and / or cross sections and / or geometries and / or orientations have. As a result, the damping behavior, in particular affects the broadband effect of the silencer 1 become.
  • the hollow body 8 has a circular Cross-section. It is clear that the hollow body 8 at least basically in the area of its axial section 9 can have any cross section, in particular a rectangular or polygonal cross section.
  • an embodiment is preferred for a distance at least in the axial direction of the hollow body 8 17 between the connection openings 12 of two adjacent ones Helmholtz resonators 10 is smaller than a whole or one half the wavelength of a frequency to be attenuated or less is as a whole or half a medium wavelength of a frequency band to be attenuated. Because of this design is achieved that it is in the assembly of the invention Muffler 1 is not on an exact positioning of the Muffler 1 arrives at or in line 7. Because like that long the one equipped with the Helmholtz resonators 10 Axial section 9 positioned in the region of an antinode there is at least one of the Helmholtz resonators 10 relatively close or exactly at the maximum of the antinode. In this way, an optimal damping effect can always be achieved be guaranteed for the silencer 1.
  • the invention Silencer 1 should be constructed so that the cavities 11 of at least some of the Helmholtz resonators 10 in one common block are formed, for example has a honeycomb structure or "honeycomb structure".
  • This block then forms a separately producible component, which are attached to a wall section of the hollow body 8 can.
  • This wall section is with the connection openings 12 equipped.
  • Cavity 11 is assigned a separate connection opening 12.
  • the wall section thus delimits the block radially on the inside. Radial the block is outside, for example, by a common one Cover bounded by the cavities 11 radially outside closes.
  • the embodiment 3 provided two zones 14 each be trained this way.
  • the hollow body 8 Be designed as a housing in which the separately manufactured block containing the cavities 11 can be used is. By closing this housing with a suitable one At the same time, the cavities 11 become radially outer lids locked.
  • the block can be connected to the wall section of the Hollow body 8 and / or with the lid in a suitable manner connected, in particular welded.
  • the component in which the sound to be damped spreads is in the described embodiment through the line 7 formed.
  • the component in which the damping is located Sound propagates through another component of the Fresh air track is formed, for example by the Air filter 5 or by a fresh air collector 18, of which the fresh air supplied to the individual cylinders the internal combustion engine 2 distributed (see. Fig. 1).
  • the silencer Housing or a component, e.g. a housing wall, the Component the silencer according to the invention formed on or in the lid of the air filter 5 his.
  • the silencer can be used as an attachment or be designed as a built-in part on or in the respective Component is assembled.
  • Silencer as an integral part of the respective component embody.

Abstract

L'invention concerne un silencieux (1) monté sur ou dans un composant (7) dans lequel se propage un son à amortir. Ce silencieux (1) présente un corps creux (8) qui communique avec le composant (7) ou une partie constitutive dudit composant (7). Plusieurs résonateurs de Helmholtz (10), agissant de manière parallèle, sont placés les uns derrières les autres dans le sens axial du corps creux (8), au moins dans une partie axiale de ce dernier (8).

Claims (21)

  1. Silencieux sur ou dans une pièce de construction (7) dans laquelle se propage un son à amortir, comportant un corps creux (8) qui communique avec la pièce de construction (7) ou constitue un composant de la pièce de construction (7),
    dans lequel au moins dans une section axiale (9) du corps creux (8), dans une zone (14) s'étendant dans la direction axiale et dans la direction périphérique du corps creux (8), des résonateurs de Helmholtz (10) agissant en parallèle sont disposés les uns derrière les autres dans la direction axiale du corps creux (8),
    chaque résonateur de Helmholtz (10) présentant un espace creux (11), qui communique avec l'intérieur (13) du corps creux (8) par l'intermédiaire d'une ouverture de liaison séparée (12),
       caractérisé en ce que les résonateurs de Helmholtz (10) sont disposés les uns à côté des autres dans la direction périphérique du corps creux (8),
  2. Silencieux selon la revendication 1,
    caractérisé en ce que la zone (14) entoure complètement le corps creux (8) dans la direction périphérique.
  3. Silencieux selon la revendication 1,
    caractérisé en ce que deux ou plusieurs zones (14) sont réalisées réparties dans la direction périphérique sur le corps creux (8).
  4. Silencieux selon l'une des revendications 1 à 3,
    caractérisé en ce que des résonateurs de Helmholtz (10) voisins sont adjacents les uns aux autres.
  5. Silencieux selon la revendication 4,
    caractérisé en ce que des résonateurs de Helmholtz (10) adjacents les uns aux autres possèdent des cloisons ou sections de cloisons (10) communes.
  6. Silencieux selon l'une des revendication 1 à 5,
    caractérisé en ce que les sections transversales des résonateurs de Helmholtz (10) sont petites par comparaison à la section transversale du corps creux (8).
  7. Silencieux selon l'une des revendication 1 à 6,
    caractérisé en ce qu'un écart (17) entre les ouvertures de liaison (12) de résonateurs de Helmholtz (10) voisins est plus petit qu'une ou une demi-longueur d'onde d'une fréquence à amortir ou plus petit qu'une ou une demi-longueur d'onde moyenne d'une bande de fréquence à amortir.
  8. Silencieux selon l'une des revendication 1 à 7,
    caractérisé en ce que chaque résonateur de Helmholtz (10) présente un espace creux (11), les espaces creux (11) de plusieurs résonateurs de Helmholtz (10) étant fermés radialement vers l'extérieur par un couvercle commun.
  9. Silencieux selon l'une des revendication 1 à 8,
    caractérisé en ce qu'au moins quelques uns des résonateurs de Helmholtz (10) se différentient des autres par le fait que leurs espace creux (11) et/ou leurs ouvertures de liaison (12) présentent des longueurs et/ou des sections transversales et/ou des géométries et/ou des orientations différentes.
  10. Silencieux selon l'une des revendication 1 à 9,
    caractérisé en ce qu'au moins quelques uns des résonateurs de Helmholtz (10) sont orientés parallèlement les uns aux autres.
  11. Silencieux selon l'une des revendication 1 à 10,
    caractérisé en ce qu'au moins quelques uns des résonateurs de Helmholtz (10) sont orientés radialement par rapport à un axe longitudinal (15) du corps creux (8).
  12. Silencieux selon l'une des revendication 1 à 11,
    caractérisé en ce qu'au moins quelques uns des résonateurs de Helmholtz (10) sont réalisés sur le corps creux (8) par le fait qu'un bloc commun contenant les espaces creux (11) de ces résonateurs de Helmholtz (10) est limité radialement vers l'extérieur par un couvercle commun et radialement vers l'intérieur par une section de paroi du corps creux (8) commune, contenant les ouvertures de liaison (12) de ces résonateurs de Helmholtz (10).
  13. Silencieux selon la revendication 12,
    caractérisé en ce que le bloc possède une structure en nid d'abeille.
  14. Silencieux selon l'une des revendication 1 à 13,
    caractérisé en ce que le corps creux (8) forme un carter ou un composant de carter de la pièce de construction (7).
  15. Silencieux selon l'une des revendication 1 à 14,
    caractérisé en ce que le silencieux (1) est réalisé en pièce rapportée à monter sur la pièce de construction (7) ou en pièce à intégrer, à intégrer dans la pièce de construction (7) ou comme composant intégral de la pièce de construction (7).
  16. Silencieux selon l'une des revendication 1 à 15,
    caractérisé en ce que la pièce de construction (7) constitue un composant d'une ligne d'air frais (4) ou d'une ligne de gaz d'échappement d'un moteur à combustion interne (2).
  17. Silencieux selon la revendication 16,
    caractérisé en ce que dans la ligne d'air frais (4) le silencieux (1) est disposé en aval d'un filtre à air (5) et en amont d'un turbocompresseur de gaz d'échappement (3) d'un moteur à combustion interne (2).
  18. Silencieux selon la revendication 16 ou 17,
    caractérisé en ce que la pièce de construction est constituée par une conduite (7) ou un filtre à air ou un collecteur d'air.
  19. Utilisation d'un silencieux (1) selon l'une des revendication 1 à 18 sur ou dans un appareil, qui est entraíné par un moteur à combustion ou un moteur électrique ou par de l'air comprimé.
  20. Silencieux selon la revendication 19,
    caractérisé en ce que l'appareil est constitué par un véhicule ou une machine à laver ou un lave-vaisselle ou un sèche-linge ou un sèche-cheveux ou un aspirateur ou un ventilateur ou une hotte aspirante ou un outil entraíné par de l'air comprimé ou un moteur électrique.
  21. Utilisation d'un silencieux (1) selon l'une des revendications 1 à 18 pour amortir des sons dans la plage de fréquences relativement élevées, par exemple à partir d'environ 900 Hz.
EP02701191A 2001-01-18 2002-01-15 Silencieux comportant une pluralite de chambres de resonance Revoked EP1352172B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10102040 2001-01-18
DE10102040A DE10102040A1 (de) 2001-01-18 2001-01-18 Schalldämpfer
PCT/DE2002/000094 WO2002057616A1 (fr) 2001-01-18 2002-01-15 Silencieux comportant une pluralite de chambres de resonance

Publications (2)

Publication Number Publication Date
EP1352172A1 EP1352172A1 (fr) 2003-10-15
EP1352172B1 true EP1352172B1 (fr) 2004-12-01

Family

ID=7670911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02701191A Revoked EP1352172B1 (fr) 2001-01-18 2002-01-15 Silencieux comportant une pluralite de chambres de resonance

Country Status (4)

Country Link
US (1) US20040069563A1 (fr)
EP (1) EP1352172B1 (fr)
DE (2) DE10102040A1 (fr)
WO (1) WO2002057616A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295782A1 (fr) 2009-09-11 2011-03-16 Hutchinson Dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10243884A1 (de) * 2002-09-21 2004-04-01 Mann + Hummel Gmbh Resonatorschalldämpfer
DE102004010037A1 (de) * 2004-03-02 2005-08-04 Daimlerchrysler Ag Abgasturbolader für eine Brennkraftmaschine
DE102004029221A1 (de) * 2004-06-16 2006-01-12 Geiger Technik Gmbh Vorrichtung zur Schalldämpfung und Vorrichtung zur Leitung eines Fluids
US20070045042A1 (en) * 2005-08-25 2007-03-01 L&L Products, Inc. Sound reduction system with sound reduction chamber
US7870930B2 (en) * 2005-09-02 2011-01-18 Emcon Technologies Llc Exhaust system with external helmholtz resonator and associated method
ITMI20052297A1 (it) * 2005-11-30 2007-06-01 De Nora Elettrodi Spa Trattamento elettrochimico di soluzioni contenenti cromo esavalente
FR2928705A1 (fr) 2008-03-12 2009-09-18 Hutchinson Sa Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique,et ligne d'admission l'incorporant.
DE102008015353A1 (de) 2008-03-22 2009-09-24 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ladeeinrichtung
US7934581B2 (en) * 2009-01-30 2011-05-03 Eaton Corporation Broadband noise resonator
FR2945839B1 (fr) * 2009-05-20 2012-10-26 Mann & Hummel Gmbh Dispositif acoustique pour l'insonorisation de moteurs a combustion interne.
KR101033601B1 (ko) 2009-06-03 2011-05-11 엘지전자 주식회사 열풍 공급장치 및 의류 처리장치
DE202009014112U1 (de) 2009-10-16 2010-01-07 Ti Automotive Engineering Centre (Heidelberg) Gmbh Schalldämpfer für einen rohrförmigen, einen Hohlraum bildenden Körper
EP2357330B1 (fr) 2009-10-16 2015-08-19 TI Automotive Engineering Centre (Heidelberg) GmbH Circuit refrigerant avec amortisseur de bruit pour un corps tubulaire formant un espace creux
EP2327327A1 (fr) * 2009-11-26 2011-06-01 Babyliss Faco S.A. Silencieux supplémentaire pour sèche-cheveux
JP5620690B2 (ja) * 2010-02-15 2014-11-05 株式会社マキタ ブロワ
DE102012024512A1 (de) 2012-12-14 2014-06-18 Daimler Ag Schalldämpfungseinrichtung für eine Verbrennungskraftmaschine
DE102013215636A1 (de) * 2013-08-08 2015-02-12 Mahle International Gmbh Geräuschdämpfer
DE202014007986U1 (de) * 2014-10-01 2016-01-05 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Schalldämpfer
US9650149B2 (en) * 2014-12-08 2017-05-16 Honeywell International Inc. Fire containment apparatuses for aircraft duct assemblies
JP6587521B2 (ja) * 2015-11-19 2019-10-09 小島プレス工業株式会社 車両用消音器
JP2018128153A (ja) * 2017-02-06 2018-08-16 三菱重工サーマルシステムズ株式会社 冷凍機
JP6514727B2 (ja) * 2017-03-08 2019-05-15 株式会社Ｓｕｂａｒｕ 消音装置
JP7014584B2 (ja) * 2017-12-12 2022-02-01 三菱重工サーマルシステムズ株式会社 冷凍サイクルシステム用の吸音要素、それを備えた減圧部、および冷凍サイクルシステム
DE102018116681A1 (de) * 2018-07-10 2020-01-16 Vorwerk & Co. Interholding Gesellschaft mit beschränkter Haftung Vorrichtung sowie Verfahren zur Reduktion einer Schallleistung einer Schallquelle
US11879419B2 (en) 2019-11-20 2024-01-23 Honda Motor Co., Ltd. Engine intake structure for vehicles
WO2022015826A1 (fr) * 2020-07-14 2022-01-20 Toledo Molding & Die, Llc Boîtier de filtre à air de véhicule doté d'un syntoniseur à large bande intégré
GB2616608A (en) * 2022-03-14 2023-09-20 Dyson Technology Ltd Noise attenuator

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1816109A (en) * 1928-11-06 1931-07-28 Maxim Silencer Co Silencer
DE732733C (de) * 1937-12-08 1943-03-10 Eberspaecher J Akustisches Abzweigfilter aus zwei oder mehr Resonatoren, insbesondere fuer Brennkraftmaschinen
DE976032C (de) * 1949-11-22 1963-01-24 Eberspaecher J Schalldaempfer mit Abzweigfilter und Reihenfilter
US3614859A (en) * 1969-11-17 1971-10-26 Ingersoll Rand Co Gas filter-silencer
US3910374A (en) * 1974-03-18 1975-10-07 Rohr Industries Inc Low frequency structural acoustic attenuator
US3955643A (en) * 1974-07-03 1976-05-11 Brunswick Corporation Free flow sound attenuating device and method of making
CA1027002A (fr) * 1974-08-30 1978-02-28 Horst W.W. Hehmann Suppresseur de bruit a traitement phase pour les gaines acoustiques
US4174020A (en) * 1975-07-01 1979-11-13 Challis Louis A Acoustic treatment for fans
DK142710B (da) * 1977-11-10 1980-12-29 Elektronikcentralen Lydabsorberende struktur.
US4287962A (en) * 1977-11-14 1981-09-08 Industrial Acoustics Company Packless silencer
US4314621A (en) * 1979-03-07 1982-02-09 Caterpillar Tractor Co. Fluidborne noise attenuator
DE2947256C2 (de) * 1979-11-23 1984-09-13 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Einrichtung zur Reduzierung des Auspuff- bzw. Abgaslärmes
US4360075A (en) * 1981-05-11 1982-11-23 General Motors Corporation Low back pressure exhaust silencer for diesel locomotives
US4645032A (en) * 1985-09-05 1987-02-24 The Garrett Corporation Compact muffler apparatus and associated methods
JPH088305Y2 (ja) * 1987-09-07 1996-03-06 小島プレス工業株式会社 消音器
US4979587A (en) * 1989-08-01 1990-12-25 The Boeing Company Jet engine noise suppressor
FI95747B (fi) * 1991-01-17 1995-11-30 Valmet Paper Machinery Inc Matalien taajuuksien äänenvaimennin paperitehtaiden ilmakanaviin
RU2095612C1 (ru) * 1992-08-22 1997-11-10 Акционерное общество "АвтоВАЗ" Впускное устройство для двигателя внутреннего сгорания
DE19504223A1 (de) * 1995-02-09 1996-08-14 Volkswagen Ag Schalldämpfer für den Ansaugkanal einer Brennkraftmaschine
DE19615917A1 (de) * 1996-04-22 1997-10-30 Wolf Woco & Co Franz J Ansaugschalldämpfer und Kraftfahrzeug
DE19725003A1 (de) * 1997-06-13 1998-12-17 Philippron Jean Claude Schalldämpfer und Schalldämmstoff
DE19818873C2 (de) * 1998-04-28 2001-07-05 Man B & W Diesel Ag Hubkolbenbrennkraftmaschine
US6231710B1 (en) * 1999-06-04 2001-05-15 The United States Of America As Represented By The Secretary Of The Air Force Method of making composite chambercore sandwich-type structure with inherent acoustic attenuation
US6695094B2 (en) * 2001-02-02 2004-02-24 The Boeing Company Acoustic muffler for turbine engine
US6752240B1 (en) * 2002-11-05 2004-06-22 Brunswick Corporation Sound attenuator for a supercharged marine propulsion device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295782A1 (fr) 2009-09-11 2011-03-16 Hutchinson Dispositif d'atténuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant
FR2950112A1 (fr) * 2009-09-11 2011-03-18 Hutchinson Dispositif d'attenuation acoustique pour ligne d'admission d'un moteur thermique, et ligne d'admission l'incorporant
US8177024B2 (en) 2009-09-11 2012-05-15 Hutchinson Accoustic attenuation device for an intake line of a combustion engine and intake line incorporating same

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US20040069563A1 (en) 2004-04-15
DE10102040A1 (de) 2002-07-25
WO2002057616A1 (fr) 2002-07-25
EP1352172A1 (fr) 2003-10-15
DE50201672D1 (de) 2005-01-05

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