CH350505A - Exhaust - Google Patents

Exhaust

Info

Publication number
CH350505A
CH350505A CH350505DA CH350505A CH 350505 A CH350505 A CH 350505A CH 350505D A CH350505D A CH 350505DA CH 350505 A CH350505 A CH 350505A
Authority
CH
Switzerland
Prior art keywords
exhaust
sub
wall
exhaust according
longitudinal channels
Prior art date
Application number
Other languages
French (fr)
Inventor
Jaquier Robert
Original Assignee
Jaquier Robert
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 Jaquier Robert filed Critical Jaquier Robert
Publication of CH350505A publication Critical patent/CH350505A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838Construction 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/08Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/10Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/14Silencing apparatus characterised by method of silencing by adding air to exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2310/00Selection of sound absorbing or insulating material
    • F01N2310/02Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/12Tubes being corrugated

Landscapes

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

Description

  

  Pot d'échappement    La présente invention a pour objet un pot  d'échappement pour moteur à combustion interne  comprenant un boîtier allongé présentant à une de  ses extrémités un orifice d'entrée muni de moyens  pour son raccordement au conduit d'échappement  du moteur et, à son autre extrémité, d'un orifice de  sortie des gaz brûlés, caractérisé par le fait que ce  boîtier comprend deux éléments assemblés l'un à  l'autre, chacun de ceux-ci étant pourvu d'une paroi  intérieure façonnée de manière à former une cavité  limitée dans le sens de la longueur du boîtier par  deux bossages présentant des canaux longitudinaux  d'évacuation des gaz brûlés, une garniture en ma  tériel isolant étant intercalée entre les parois de cha  que élément.  



  Le dessin annexé représente, à titre d'exemple,  une forme d'exécution du pot d'échappement objet  de l'invention.  



  La     fig.    1 en est une vue en coupe axiale     longitu-          dinale    suivant     I-I    de la     fig.    2 ;  la     fig.    2 est une vue en coupe suivant     II-II    de  la     fig.    1 ;  la     fig.    3 est une vue en coupe suivant     III-III    de  la     fig.    1 ;  la     fig.    4 est une vue en coupe suivant IV-IV de  la     fig.    1.  



  Le pot d'échappement représenté comprend un  boîtier allongé 1 présentant à une de ses extrémités  un orifice d'entrée 2 muni de moyens pour son  raccordement au conduit d'échappement d'un mo  teur à combustion interne et, à son autre extrémité,  un orifice 3 de sortie des gaz brûlés.    Le boîtier 1 est formé par deux éléments 4 et 5  présentant des parois en tôle 6 et 7 pourvues latéra  lement de rebords extérieurs 8 et 9, ces derniers  étant placés en regard et assemblés par soudage.  



  Chaque élément 4 et 5 présente une paroi inté  rieure 10 de même forme que la paroi extérieure  correspondante de celle-ci, à laquelle elle est sou  dée par ses bords ; chaque paroi 10 est en tôle  façonnée percée de trous 11 et présentant une ou  verture médiane 12 limitée dans le sens de la lon  gueur du pot d'échappement par deux bossages 13  présentant des canaux longitudinaux coaxiaux 14,  les canaux 14 d'un élément étant en regard de ceux  de l'autre élément ; le long de ces canaux 14 sont  destinés à se déplacer, dans le sens de la flèche 15,  les gaz brûlés entrant par     l'orifice    2 et sortant par  l'orifice 3.  



  A l'extrémité avant de chaque paroi     intérieure     10, entre     l'orifice    d'entrée 2 et le bossage 13 cor  respondant, est aménagée une cavité 16 ; de même,  à l'extrémité aval de chaque paroi intérieure 10,  entre l'orifice de sortie 3 et le bossage 13 corres  pondant, est aménagée une cavité 17 semblable  à 16.  



  Entre la paroi 6 ou 7 d'un élément et la paroi  intérieure 10 correspondante est placée une garni  ture en matériel isolant, en     fibre    de verre, par exem  ple ; cette dernière est destinée à     freiner    les oscilla  tions desdites parois     intérieures.     



  Le fonctionnement du pot d'échappement repré  senté est le suivant  Les gaz d'échappement provenant du moteur  pénètrent dans ledit pot par l'orifice 2, se détendant  dans la cavité 16 puis pénétrant par les canaux lon  gitudinaux 14 dans la cavité 12 où ils continuent      à se détendre<B>;</B> ensuite, ces     gaz    aboutissent à la  cavité 17, après s'être déplacés dans les canaux lon  gitudinaux 14, où ils se détendent encore avant de  s'échapper au dehors par l'orifice 3.  



  Il est prévu, en variante, de réaliser les parois  10 en tôle non perforée.



  Exhaust The present invention relates to a muffler for an internal combustion engine comprising an elongated housing having at one of its ends an inlet port provided with means for its connection to the engine exhaust duct and, at its other end, an outlet for the burnt gases, characterized in that this housing comprises two elements assembled together, each of these being provided with an internal wall shaped so as to form a cavity limited in the direction of the length of the casing by two bosses having longitudinal channels for evacuating the burnt gases, a lining of insulating material being interposed between the walls of each element.



  The appended drawing represents, by way of example, an embodiment of the exhaust pipe which is the subject of the invention.



  Fig. 1 is a view in longitudinal axial section along I-I of FIG. 2; fig. 2 is a sectional view along II-II of FIG. 1; fig. 3 is a sectional view along III-III of FIG. 1; fig. 4 is a sectional view along IV-IV of FIG. 1.



  The muffler shown comprises an elongated housing 1 having at one of its ends an inlet orifice 2 provided with means for its connection to the exhaust duct of an internal combustion engine and, at its other end, a burnt gas outlet 3. The housing 1 is formed by two elements 4 and 5 having sheet metal walls 6 and 7 provided laterally with outer edges 8 and 9, the latter being placed opposite and assembled by welding.



  Each element 4 and 5 has an interior wall 10 of the same shape as the corresponding exterior wall thereof, to which it is welded by its edges; each wall 10 is made of shaped sheet metal pierced with holes 11 and having a central or median opening 12 limited in the direction of the length of the muffler by two bosses 13 having coaxial longitudinal channels 14, the channels 14 of an element being next to those of the other element; along these channels 14 are intended to move, in the direction of arrow 15, the burnt gases entering through orifice 2 and exiting through orifice 3.



  At the front end of each interior wall 10, between the inlet orifice 2 and the corresponding boss 13, a cavity 16 is provided; likewise, at the downstream end of each inner wall 10, between the outlet orifice 3 and the corresponding boss 13, there is a cavity 17 similar to 16.



  Between the wall 6 or 7 of an element and the corresponding inner wall 10 is placed a lining of insulating material, fiberglass, for example; the latter is intended to slow down the oscillations of said interior walls.



  The operation of the muffler shown is as follows The exhaust gases from the engine enter said muffler through the orifice 2, relaxing in the cavity 16 then entering through the longitudinal channels 14 into the cavity 12 where they continue to relax <B>; </B> then these gases end in cavity 17, after having moved into longitudinal longitudinal channels 14, where they further relax before escaping out through the orifice 3.



  As a variant, provision is made for the walls 10 to be made from non-perforated sheet metal.

 

Claims (1)

REVENDICATION Pot d'échappement pour moteur à combustion interne, comprenant un boîtier allongé présentant à une de ses extrémités un orifice d'entrée muni de moyens pour son raccordement au conduit d7échap- pement du moteur et, à son autre extrémité, un orifice de sortie des gaz brûlés, caractérisé par le fait que ce boîtier comprend deux éléments assem blés l'un à l'autre, CLAIM Exhaust for an internal combustion engine, comprising an elongated casing having at one of its ends an inlet port provided with means for its connection to the engine exhaust duct and, at its other end, an outlet port burnt gases, characterized in that this housing comprises two elements assembled together, chacun de ceux-ci étant pourvu d'une paroi intérieure façonnée de manière à for mer une cavité limitée dans le sens de la longueur du boîtier par deux bossages présentant des canaux longitudinaux d'évacuation des gaz brûlés, une gar niture en matériel isolant étant intercalée entre les parois de chaque élément. SOUS-REVENDICATIONS 1. Pot d'échappement selon la revendication, ca ractérisé par le fait que la paroi intérieure de chaque élément est en tôle perforée. 2. Pot d'échappement selon la revendication et la sous-revendication 1, caractérisé par le fait que la garniture isolante est en fibre de verre. 3. each of these being provided with an inner wall shaped so as to form a cavity limited in the direction of the length of the housing by two bosses having longitudinal channels for evacuating the burnt gases, a lining of insulating material being interposed between the walls of each element. SUB-CLAIMS 1. Exhaust according to claim, ca ractérisé in that the inner wall of each element is perforated sheet. 2. Exhaust according to claim and sub-claim 1, characterized in that the insulating lining is made of fiberglass. 3. Pot d'échappement selon la revendication et les sous-revendications 1 et 2, caractérisé par le fait que les canaux longitudinaux d'un élément sont en regard de ceux de l'autre. 4. Pot d'échappement selon la revendication et les sous-revendications 1 à 3, caractérisé par le fait que la paroi intérieure de chaque élément est fixée par soudage. Exhaust according to claim and sub-claims 1 and 2, characterized in that the longitudinal channels of one element face those of the other. 4. Exhaust according to claim and sub-claims 1 to 3, characterized in that the inner wall of each element is fixed by welding.
CH350505D 1959-05-05 1959-05-05 Exhaust CH350505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH350505T 1959-05-05

Publications (1)

Publication Number Publication Date
CH350505A true CH350505A (en) 1960-11-30

Family

ID=4509106

Family Applications (1)

Application Number Title Priority Date Filing Date
CH350505D CH350505A (en) 1959-05-05 1959-05-05 Exhaust

Country Status (1)

Country Link
CH (1) CH350505A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268434B (en) * 1961-12-28 1968-05-16 Friedrich Boysen Silencer with interior rooms divided by transverse walls
FR2604747A1 (en) * 1986-10-07 1988-04-08 Cor Tubi Spa MUFFLER FOR GAS STREAMS
EP0473839A1 (en) * 1990-09-04 1992-03-11 Ap Parts Manufacturing Company Stamp formed muffler with low back pressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268434B (en) * 1961-12-28 1968-05-16 Friedrich Boysen Silencer with interior rooms divided by transverse walls
FR2604747A1 (en) * 1986-10-07 1988-04-08 Cor Tubi Spa MUFFLER FOR GAS STREAMS
EP0473839A1 (en) * 1990-09-04 1992-03-11 Ap Parts Manufacturing Company Stamp formed muffler with low back pressure

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