CH379836A - Exhaust silencer for internal combustion engine - Google Patents

Exhaust silencer for internal combustion engine

Info

Publication number
CH379836A
CH379836A CH1101861A CH1101861A CH379836A CH 379836 A CH379836 A CH 379836A CH 1101861 A CH1101861 A CH 1101861A CH 1101861 A CH1101861 A CH 1101861A CH 379836 A CH379836 A CH 379836A
Authority
CH
Switzerland
Prior art keywords
sleeve
pipe
exhaust silencer
opening
pierced
Prior art date
Application number
CH1101861A
Other languages
French (fr)
Inventor
Fernand Wutrich Lucien
Original Assignee
Fernand Wutrich Lucien
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 Fernand Wutrich Lucien filed Critical Fernand Wutrich Lucien
Priority to CH1101861A priority Critical patent/CH379836A/en
Publication of CH379836A publication Critical patent/CH379836A/en

Links

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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • 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
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/0212—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters with one or more perforated tubes surrounded by filtering material, e.g. filter candles
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/0335—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with exhaust silencers 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/02—Exhaust filters
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/04—Metallic wool, e.g. steel wool, copper wool or the like
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for filters
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Description

  

      Silencieux    d'échappement pour moteur à combustion interne    La présente invention a pour objet un     silencieux     d'échappement pour moteur à     combustion        interne,          caractérisé    par un tuyau d'entrée se raccordant à  l'échappement et pénétrant     concentriquement,    dans  un manchon cylindrique,

   la     portion    du tuyau située  à l'intérieur du manchon étant percée d'au moins un       orifice    par lequel les gaz d'échappement du moteur       arrivant    par le tuyau peuvent passer dans l'espace  ménagé entre les parois     respectives    du tuyau et du  manchon,     l'extrémité    de ce dernier étant obturée     par     un bouchon de fermeture pourvu d'une ouverture,  ledit bouchon présentant un appendice     s'étendant    à  l'intérieur du manchon et bouchant l'extrémité du  tuyau,

   cet appendice étant percé d'au moins un ori  fice     communiquant    avec l'ouverture du bouchon et  par lequel les gaz contenus dans le manchon peu  vent passer pour atteindre     l'ouverture    du bouchon et  se répandre dans l'atmosphère.  



  Le dessin     annexé    représente, à tire d'exemple,  une forme d'exécution de l'objet de l'invention.  La     fig.    1 en est une coupe longitudinale;  la     fig.    2 est une coupe selon     I-I    de la     fig.    1 ;  la     fig.    3 est une coupe selon     II-II    de la     fig.    1 ;  la     fig.    4 est un     détail    de la     fig.    1.  



  Le silencieux représenté comprend     un    manchon       cylindrique        dans    lequel pénètre concentriquement  un tuyau d'arrivée des gaz 2 percé d'orifices 3 dispo  sés sur la     portion    du tuyau 2 se trouvant à l'intérieur  du manchon 1.     L'extrémité    4 du tuyau 2 est située  à     l'intérieur    du manchon 1, et son autre extrémité 5  débouche hors de ce dernier et est destinée à être  branchée sur l'échappement d'un moteur à combus  tion interne non représenté. L'extrémité 5 du tuyau 2  est centrée à sa sortie du manchon 1 par une  bague 6.

   Cette dernière est fixée, par exemple soudée  contre la paroi du manchon 1 et obture l'ouverture    dudit manchon, tout en     laissant        passer    le tuyau 2  qui est fixé par une vis 7. L'extrémité 4 du tuyau 2  est centrée dans le manchon 1 par     l'intermédiaire          d'un    bouchon 8 de forme cylindrique obturant le  manchon 1 sur lequel il est fixé au moyen d'une  vis 9.

   Le bouchon 8 présente, à l'intérieur du man  chon 1, un appendice     cylindrique    10 dont     l'extrémité     libre 11 est     pourvue    d'une plaque 12     servant    à bou  cher     l'extrémité    4 du tuyau 2 engagée dans l'appen  dice 10. La     paroi    de ce     dernier    est pourvue d'orifi  ces 13 de forme     allongée.    Le bouchon 8 est muni,  en outre, d'une ouverture de sortie 15 ménagée dans  sa paroi latérale 14.  



  Le silencieux d'échappement représenté fonc  tionne comme suit  Les gaz d'échappement du moteur pénètrent,  dans le sens de la flèche 16, dans le tuyau 2 et en       sortent    par les     orifices    3 pour se     répandre        dans     l'espace 17 compris entre les parois concentriques  du     manchon    1 et du tuyau 2.     Etant    donné que le  manchon 1 est obturé à ses deux     extrémités,    les  gaz passent par les     orifices    13 ménagés sur l'appen  dice 10, et par l'ouverture de sortie 15 pour se répan  dre dans l'atmosphère.  



  Il est également prévu de donner     différentes    for  mes aux orifices 3 et 13.    Les différents     organes    du     silencieux    sont en  métal,     notamment    en métal non ferreux,     afin    de  diminuer l'action     corrosive    des     gaz    d'échappement.  



       Etant    donné que le     silencieux    décrit comprend  un nombre restreint de pièces toutes     solidaires    les  unes des autres, il n'est pas possible d'en supprimer  une afin de modifier l'action dudit pot.  



  Dans le but de filtrer les gaz se     répandant    dans  l'atmosphère, il est prévu     d'insérer    dans le man-      chop 1, à proximité du bouchon 8, une     bobine    fil  trante     amovible    18 en paille d'acier inoxydable, entou  rant le tuyau 2.



      Exhaust silencer for an internal combustion engine The present invention relates to an exhaust silencer for an internal combustion engine, characterized by an inlet pipe connecting to the exhaust and entering concentrically, in a cylindrical sleeve,

   the portion of the pipe located inside the sleeve being pierced with at least one orifice through which the engine exhaust gases arriving through the pipe can pass into the space formed between the respective walls of the pipe and the sleeve, the end of the latter being closed by a closure cap provided with an opening, said cap having an appendage extending inside the sleeve and blocking the end of the pipe,

   this appendage being pierced with at least one orifice communicating with the opening of the stopper and through which the gases contained in the sleeve can pass to reach the opening of the stopper and spread into the atmosphere.



  The appended drawing represents, by way of example, an embodiment of the object of the invention. Fig. 1 is a longitudinal section thereof; fig. 2 is a section on I-I of FIG. 1; fig. 3 is a section on II-II of FIG. 1; fig. 4 is a detail of FIG. 1.



  The silencer shown comprises a cylindrical sleeve into which enters a concentrically a gas inlet pipe 2 pierced with orifices 3 arranged on the portion of the pipe 2 located inside the sleeve 1. The end 4 of the pipe 2 is located inside the sleeve 1, and its other end 5 opens out of the latter and is intended to be connected to the exhaust of an internal combustion engine not shown. The end 5 of the pipe 2 is centered at its exit from the sleeve 1 by a ring 6.

   The latter is fixed, for example welded against the wall of the sleeve 1 and closes the opening of said sleeve, while allowing the pipe 2 which is fixed by a screw 7. The end 4 of the pipe 2 is centered in the sleeve 1 to pass. by means of a plug 8 of cylindrical shape closing off the sleeve 1 on which it is fixed by means of a screw 9.

   The stopper 8 has, inside the sleeve 1, a cylindrical appendage 10, the free end 11 of which is provided with a plate 12 serving to stop the end 4 of the pipe 2 engaged in the appendix 10. The wall of the latter is provided with orifi these 13 of elongated shape. The stopper 8 is also provided with an outlet opening 15 provided in its side wall 14.



  The exhaust silencer shown operates as follows The exhaust gases from the engine enter, in the direction of arrow 16, into pipe 2 and exit through orifices 3 to spread into the space 17 between the walls of the sleeve 1 and of the pipe 2. Since the sleeve 1 is closed at both ends, the gases pass through the orifices 13 made on the appendage 10, and through the outlet opening 15 to spread into the atmosphere.



  It is also planned to give different shapes to the orifices 3 and 13. The various members of the silencer are made of metal, in particular non-ferrous metal, in order to reduce the corrosive action of the exhaust gases.



       Given that the silencer described comprises a small number of parts which are all integral with one another, it is not possible to remove one in order to modify the action of said pot.



  In order to filter the gases spreading in the atmosphere, provision is made to insert into the sleeve 1, near the stopper 8, a removable wire spool 18 made of stainless steel straw, surrounding the pipe. 2.

Claims (1)

REVENDICATION Silencieux d'échappement pour moteur à com bustion interne, caractérisé par un tuyau d'entrée se raccordant à l'échappement du moteur et par tiellement enfermé dans un manchon pénétrant con- centriquement dans un manchon cylindrique, CLAIM Exhaust silencer for an internal combustion engine, characterized by an inlet pipe connecting to the engine exhaust and partially enclosed in a sleeve penetrating concentrically into a cylindrical sleeve, la por tion du tuyau située à l'intérieur du manchon étant percée d'au moins un orifice par lequel les gaz d'échappement du moteur arrivant par le tuyau peuvent passer dans l'espace ménagé entre les parois respectives du tuyau et du manchon, l'extré mité de ce dernier étant obturée par un bouchon de fermeture pourvu d'une ouverture, ledit bouchon présentant un appendice s'étendant à l'intérieur du manchon et bouchant l'extrémité du tuyau, the portion of the pipe located inside the sleeve being pierced with at least one orifice through which the engine exhaust gases arriving through the pipe can pass into the space formed between the respective walls of the pipe and of the sleeve, the end of the latter being closed by a closure cap provided with an opening, said cap having an appendage extending inside the sleeve and blocking the end of the pipe, cet appendice étant percé d'au moins un orifice commu- niquant avec l'ouverture du bouchon et par lequel les gaz contenus dans le manchon peuvent passer pour atteindre l'ouverture du bouchon et se répan dre dans l'atmosphère. SOUS-REVENDICATIONS 1. Silencieux d'échappement selon la revendica tion, caractérisé par le fait que le bouchon de ferme ture se présente sous la forme d'un- cylindre fermé à l'une de ses extrémités, pourvu d'une ouverture pratiquée sur sa paroi latérale, ledit cylindre pré sentant, à son extrémité ouverte, un appendice cylindrique creux emboîté sur le tuyau et fermé par une plaque destinée à boucher l'extrémité du tuyau. this appendage being pierced with at least one orifice communicating with the opening of the stopper and through which the gases contained in the sleeve can pass to reach the opening of the stopper and spread into the atmosphere. SUB-CLAIMS 1. Exhaust silencer according to claim, characterized in that the closing cap is in the form of a cylinder closed at one of its ends, provided with an opening made on its side wall, said cylinder having, at its open end, a hollow cylindrical appendage fitted onto the pipe and closed by a plate intended to block the end of the pipe. 2. Silencieux d'échappement selon la revendica tion et la sous-revendication 1, caractérisé par le fait que la paroi latérale de l'appendice du bouchon de fermeture est percée d'au moins un orifice situé entre la plaque bouchant l'extrémité du tuyau et la paroi latérale du bouchon fermant le manchon. 3. Silencieux d'échappement selon la revendica tion et les sous-revendications 1 et 2, caractérisé par le fait qu'il est en métal, notamment en métal non ferreux. 2. Exhaust silencer according to claim and sub-claim 1, characterized in that the side wall of the appendix of the closing plug is pierced with at least one orifice located between the plate blocking the end of the pipe and the side wall of the plug closing the sleeve. 3. Exhaust silencer according to claim and sub-claims 1 and 2, characterized in that it is made of metal, in particular non-ferrous metal.
CH1101861A 1961-09-22 1961-09-22 Exhaust silencer for internal combustion engine CH379836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1101861A CH379836A (en) 1961-09-22 1961-09-22 Exhaust silencer for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1101861A CH379836A (en) 1961-09-22 1961-09-22 Exhaust silencer for internal combustion engine

Publications (1)

Publication Number Publication Date
CH379836A true CH379836A (en) 1964-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH1101861A CH379836A (en) 1961-09-22 1961-09-22 Exhaust silencer for internal combustion engine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732948A (en) * 1971-09-20 1973-05-15 Nat Southwire Aluminum Muffler for aluminum cell tapping crucible
WO2016102033A1 (en) * 2014-12-22 2016-06-30 Donaldson Filtration Deutschland Gmbh Device for attenuating an exhaust-gas noise, system comprising a device of said type, sorption dryer having a device of said type, and method for attenuating an exhaust-gas noise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732948A (en) * 1971-09-20 1973-05-15 Nat Southwire Aluminum Muffler for aluminum cell tapping crucible
WO2016102033A1 (en) * 2014-12-22 2016-06-30 Donaldson Filtration Deutschland Gmbh Device for attenuating an exhaust-gas noise, system comprising a device of said type, sorption dryer having a device of said type, and method for attenuating an exhaust-gas noise
US10596515B2 (en) 2014-12-22 2020-03-24 Donaldson Filtration Deutschland Gmbh Device for attenuating an exhaust-gas noise, system comprising a device of said type, sorption dryer having a device of said type, and method for attenuating an exhaust-gas noise

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