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EP1630372B1 - Corps de silencieux - Google Patents

Corps de silencieux Download PDF

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Publication number
EP1630372B1
EP1630372B1 EP05291634A EP05291634A EP1630372B1 EP 1630372 B1 EP1630372 B1 EP 1630372B1 EP 05291634 A EP05291634 A EP 05291634A EP 05291634 A EP05291634 A EP 05291634A EP 1630372 B1 EP1630372 B1 EP 1630372B1
Authority
EP
European Patent Office
Prior art keywords
shell
main body
arc portions
shell main
side end
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
EP05291634A
Other languages
German (de)
English (en)
Other versions
EP1630372A1 (fr
Inventor
Seiichi c/o Calsonic Kansei Corporation Nitta
Takao c/o Calsonic Kansei Corporation Shibata
Koichi c/o Calsonic Kansei Corporation Takahashi
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.)
Marelli Corp
Original Assignee
Calsonic Kansei Corp
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 Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Publication of EP1630372A1 publication Critical patent/EP1630372A1/fr
Application granted granted Critical
Publication of EP1630372B1 publication Critical patent/EP1630372B1/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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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 exhaust gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • 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 exhaust gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

Definitions

  • the present invention relates to a shell main body for a muffler that is used in an exhaust system of a combustion engine mounted on a motor vehicle or the like and is equipped with an inner shell and an outer shell wrapping an outer surface of the inner shell.
  • a shell main body for a muffler with an inner shell and an outer shell As a shell main body for a muffler with an inner shell and an outer shell, a shell main body disclosed in Japanese Patent Application Laid-open No. 2002-206422 is conventionally known. As shown in a schematic cross-sectional view in FIG. 4, a shell main body 103 of this conventional muffler is formed of two layers of an inner shell 101 and an outer shell 102. Each of the inner and outer shells 101 and 102 has a cylindrical shape with a cross section that is not a perfect circle but is defined by small arc portions 104 and 104 alternating with large arc portions 105 and 105, similarly to an oval, a racing track-like figure, or the like.
  • the conventional shell main body 103 for the muffler described above has the following problem.
  • the shell main body 103 is provided at its edge portions with openings, which are closed by not-shown end plates by press caulking or welding, respectively.
  • This structure makes it impossible for the end plates and the inner shell 101 to be welded to each other, thus causing not-shown minute gaps which are located between an inner surface of the end plates and the edge portions of the inner shell 101 and communicate an inner space of the shell main body 103 and gaps 104a, 104b, 105a, and 105b formed between the inner shell 101 and the outer shell 102, because the inner shell 101 are covered by the end plates and the outer shell 102.
  • the edge portions of the inner shell 101 and the outer shell 102 have overlap portions 108 that are welded with each other in a state that they are overlapped with each other at a top position and in a circumferential direction of the shell main body 103.
  • the water that has entered the gaps 104a, 104b, 105a, and 105b is heated by high-temperature exhaust gas passing through the muffle to vaporize after restarting the engine, resulting in pressure rise of the vapor in the gaps 104a, 104b, 105a, and 105b.
  • this pressure rise speed exceeds a discharging speed of the vapor that is discharged from the gaps 104a, 104b, 105a, and 105b to the inner portion or an outside of the shell main body 103, vapor pressure in the gaps 104a, 104b, 105a, and 105b between the shells 101 and 102 sometimes rises to deform them.
  • a communicating path for example a hole, is formed on a shell overlap portion at an upper surface side of the shell main body 103 so as to allow the gap between the inner shell 101 and the outer shell 102 to communicate with the outside of the outer shell 102 or gaps at the edge portion of the outer shell 102 is formed so that the vapor entered into the gap can pass through the gaps of the outer shell 102.
  • a shell main body 103 having a cylindrical shape with a cross section that is not a perfect circle but is defined by small arc portions 104 and 104 alternating with large arc portions 105 and 105, similarly to an oval, a racing track, or the like the inner shell 101 and the outer shell 102 in the right and left small arc portions 104 and 104 are in close contact with each other, clogging their right and left side gaps 104a and 104b and dividing the gap into an upper gap 105b and a lower gap 105a in the large arc portions 105 and 105 as shown in FIG. 5.
  • This clogging prevents the vapor generated in the lower gap 105a between the lower portions of the inner shell 101 and the outer shell 103 from discharging from the lower gap 105a, resulting in pressure-rise of the vapor to apply its pressure force P to and deform the lower portions of the shells 101 and 102 in an expansion direction.
  • the lower large arc portion 105 of the shells 101 and 102 is deformable easily more than the small arc portions 104 and 104, because the former has stiffness smaller than the former.
  • U.S. Patent n° 4 333 545 also discloses a shell main body for a muffler, which has two plies consisting of an outer ply and an inner ply wrapped by the outer ply.
  • the end of the inner ply is upset to form a hook element which is substantially coextensive with the end, and the end of the outer ply is upset along the length thereof to form a complementary hook element, with a tongue being left extended.
  • the hook element of the inner ply is turned up and the complementary hook element of the outer ply is down to be jointed with each other so that they are engaged and firmly interlocked, turning them under and over respectively, by rolling the joint along the length thereof to form a seam generally raised on the exterior surface of a shell. This seam prevents appreciable leakage of gas.
  • This shell main body is gas-tightly sealed at the hook elements, but water can enter a gap formed therebetween due to capillary phenomenon. Accordingly, this shell main body can not release vapor caused from the entered water to an exterior of the main shell body when one of large arc portion is shut off from the other thereof because of contact of small arc portions thereof.
  • a shell main body for a muffler includes an inner shell formed in a cylindrical shape with a cross section that is noncircular and defined by left and right small arc portions alternating with lower and upper large arc portions, an outer shell wrapping an outer surface of the inner shell and formed in a cylindrical shape with a cross section that is noncircular and defined by left and right small arc portions alternating with lower and upper large arc portions, and end plates secured to the outer shell to close openings of the shell main body.
  • the inner shell and the outer shell are formed by double-rolling a flat plate so that the flat plate has an inner-side end portion and an outer-side end portion which are overlapped with a sandwiched portion of the flat plate located therebetween at one of the small arc portions in a circumferential direction of the shell main body to form a shell overlap portion that is the inner-side end portion and the outer-side end portion contact with the sandwiched portion of the flat plate.
  • the other of the small arc portions of the inner shell and the other of the small arc portions of the outer shell contact with each other.
  • the inner-side end portion, the outer-side end portion and the sandwiched portion of the shell overlap portion are spot-welded at positions at intervals in a longitudinal direction of the shell main body so that the inner-side end portion and the sandwiched portion form a first clearance therebetween for communicating a gap formed between one of the lower and upper large arc portions of the inner and outer shell and an inner space of the main shell body with each other through the first clearance and so that the outer-side end portion and the sandwiched portion form a second clearance therebetween for communicating a gap formed between the other of the lower and upper large arc portions and an outside of the main shell body with each other through the second clearance to discharge vapor in the gaps.
  • the inner shell and the outer shell are formed of a double-rolled flat plate. This brings reduction of manufacturing cost with ensuring decrease of transmission noise and leak prevention of exhaust gas
  • the large arc portions are separated from each other in a vertical direction to be located in an upper position and a lower position of the shell main body, and the small arc portions are separated from each other in a horizontal direction to be located in side positions of the shell main body with connecting the large arc portions. Therefore, this structure enables the shell main body 3 to be short in height so as to avoid interference of the shell main body and a road surface with obtaining a necessary passage area for passing exhaust gas through an inside of it.
  • the end portion of the outer shell is headed downward. Therefore, when rainwater and/or antifreezing agent that comes from the outside of the shell main body and adhere to an outer surface of the outer shell is transmitted through the outer surface and falls, but does not easily enter the gap through the clearance of the shell overlap portion.
  • the end portion of the inner shell is headed upward and located at a position higher than a bottom portion of an inner surface of the inner shell. Therefore, water accumulated in the bottom portion of the shell main body does not easily enter the gap through the clearance of the shell overlap portion.
  • the shell overlap portion is constructed by the end portion of the inner shell and the end portion of the outer shell that are spot-welded in positions at intervals in a longitudinal direction of the shell main body so that the clearance between the spot-welded positions allows the vapor to be discharged.
  • This enables this gap for discharging the vapor to be easily formed at a low manufacturing cost, because its welding length is shorten to form the gap for vapor discharging.
  • the shell overlap portion includes the end portion of the inner shell, the end portion of the outer shell, and a sandwiched portion that is sandwiched between the end portions with the sandwiching portion integrally connecting the inner shell and the outer shell and dividing the clearance into a first clearance for communicating the gap and the inside of the shell main body and a second clearance for communicating the gap and the outside of the shell main body. Therefore, this structure enables the overlap portion to be easily made of one flat plate and formed with the clearances for vapor discharging into the outside and the inside of the shell main body.
  • the clearance has a small area to prevent water from entering the gap therethrough when pressure is low in the gap, and it has a large area to discharge vapor in the gap therethrough into the inside or outside of the shell main body.
  • FIGS. 1 and 3 First, a shell main body for a muffler of an embodiment will be described with reference to the accompanying drawings of FIGS. 1 and 3.
  • FIG. 1 is a plane view showing the shell main body of the embodiment
  • FIG. 2 is a cross-sectional view showing the shell main body taken along the II-II line in FIG. 1
  • FIG. 3 is a schematic diagram illustrating a state of vapor discharging in the shell main body shown in FIGS. 1 and 2.
  • the shell main body 3 of the embodiment is used for a muffler of an exhaust system mounted on a motor vehicle.
  • the muffler is connected at its both ends with not-shown exhaust pipes.
  • the shell main body 3 is made of a double-rolled flat plate, formed of two layers of an inner shell 1 and an outer shell 2 so that it has a laterally long, flattish cylindrical shape with a cross section substantially in a laterally long, rounded triangle shape.
  • the shell main body 3 has small arc portions 4 and 5 alternating with large arc portions 6 and 7, the small arc portions 4 and 5 having a small curvature in a state that the inner shell 1 and the outer shell 2 are attached almost firmly to each other to form a left clearance, which will be described later, and a right gap 5a, and the large arc portions 6 and 7 having a large curvature in a state that a lower gap 6a and an upper gap 7a are formed between the inner shell 1 and the outer shell 2.
  • the small arc portions 4 and 5 are separated from each other in a horizontal direction to be located in side positions of the shell main body 3 with connecting the large arc portions 6 and 7, and the large arc portions 6 and 7 are separated from each other in a vertical direction to be located in an upper position and a lower position of the shell main body 3.
  • the small arc portions 4 and 5 and the large arc portions 6 and 7 form an inner space I inside of them so as to pass exhaust gas.
  • an inner-side portion 1a of the flat plate and an end portion 2a of the outer shell 2 are overlapped in a circumferential direction of the shell main body 3 to each form a shell overlap portion 8 being spot-welded in positions S that are a predetermined interval apart from one another in a longitudinal direction of the shell main body 3.
  • the shell overlap portion 8 further includes a sandwiched portion 12a of the plate that is sandwiched between the end portions 1a and 2a, thus having three-layer shell portions.
  • an overlap amount of the shell overlap portion 8 (an overlap amount of the inner-side portion 1 a of the flat plate and the outer-side portion 2a of the flat plate) is 20 mm, and a center portion of the shell overlap portion 8 is spot-welded in the positions S such that three-layer shell portions are fixed to one another at the shell overlap portion 8.
  • Non-welded portions between the spot-welded positions S form the clearance for discharging water vapor in the gaps 5a, 6a, and 7a.
  • the inner-side portion 1a of the flat plate is positioned in the small arc portion 4 to be erected upward from a bottom portion of an inner space I of the shell main body 3 to be located at a position higher than the bottom portion and secured to an inner peripheral surface of the sandwiched portion 12a at spot-welded positions S, while an outer-side portion 2a of the flat plate is headed downward in the small arc portion 4 and secured to an outer peripheral surface of the sandwiched portion 12a at the spot-welded positions S.
  • the shell overlap portion 8 is formed to have the clearance, which includes a first clearance 1b formed between the inner-side portion 1a of the flat plate and an inner peripheral surface of the sandwiched portion 12a and a second clearance 2b formed between the outer-side portion 2a of the flat plate and an outer peripheral surface of the sandwiched portion 12a.
  • the end portions 1b and 2b are deformable to spread their discharging areas and discharge the vapor in the gaps 5a, 6a , and 7a when pressure of vapor in the gaps 6a and 7a becomes high.
  • not-shown interior parts such as baffle plates, communicating pipes, and others, are contained. Openings of both edge portions of the shell main body 3 are closed by end plates 9 and 10, respectively, by press-caulking or welding the end plates 9 and 10 and the edge portions of the outer shell 2.
  • the end plate 9 is fixed to a not-shown inlet exhaust pipe
  • the end plate 10 is fixed to a not-shown outlet exhaust pipe, so that the inner space I is communicated with the inlet exhaust pipe and the outlet exhaust pipe to flow exhaust gas outputted from an engine to the outside with decreasing transmission noise of the gas.
  • the shell main body 3 is made of a double-rolled flat plate so that it is formed of two layers of the inner shell 1 and the outer shell 2, which brings decrease of transmission noise and leak prevention of exhaust gas.
  • water such as flocculated water generated from water vapor contained in exhaust gas by cooling-off
  • the muffler is thereafter heated by the exhaust gas discharged from the engine in operation after restarting the engine, so that the water vaporizes to increase its volume, resulting in increase of pressure in the gaps 5a, 6a, and 7a formed between the inner shell 1 and the outer shell 2.
  • the shell main body 3 is constructed such that the small arc portions 4 and 5 of the inner shell 1 and the outer shell 2 are in contact with each other with the small arc portion 4 being provided with the shell overlap portion 8, which enables the water vapor in the gaps 6a and 7a of the large arc portions 6 and 7 to apply its expansion force and deform the end portions 1a and 2a for spreading discharging areas of the first and second clearances 1b and 2b of the shell overlap portion 8.
  • the end portions 1a and 2a are weaker in stiffness than the other portions of the shell main body 3 to be easily deformed by the expansion force of the vapor in the large arc portions 6a and 7a, and the left arc portion 4 so that the clearances 1b and 2b of the end portions 1a and 2a located between the welded positions S are enlarged to pass the vapor in the large arc portions 6a and 7a through the clearances 1b and 2b, because the end portions 1a and 2a are easily deformable due to their low stiffness.
  • the vapor accumulated in the lower gap 6a of the lower large arc portion 6 is discharged, as indicated by an arrow W1 in FIG. 3, to the inner space I of the shell main body 3 through the first clearance 1b of the shell overlap portion 8 formed between the inner-side portion 1a of the flat plate and the sandwiched portion 12a, with spreading the clearance 1b by the vapor pressure. Accordingly, the clearance 1b enables pressure rise due to the water accumulated in the lower gap 6a of the lower large arc portion 6 to be suppressed, and thereby preventing the lower large arc portion 6 from being deformed.
  • the vapor accumulated in the upper gap 7a of the upper large arc portion 7 is discharged, as indicated by an arrow W2 in FIG. 3, to the outside O of the shell main body 3 through the second clearance 2b of the shell overlap portion 8 formed between the outer-side portion 2a of the flat plate and the sandwiched portion 12a, with spreading the clearance 2b by the vapor pressure. Accordingly, the clearance 2b enables pressure rise due to the water accumulated in the upper gap 7a of the upper large arc portion 7 to be suppressed, and thereby preventing the upper large arc portion 7 from being deformed.
  • rainwater and/or antifreezing agent that comes from the outside and adhere to an outer surface of the outer shell 2 is transmitted through the outer surface and falls, but does not easily enter the second clearance 2b formed between the end portion 2a and the sandwiched portion 12a, since the outer shell 2 is rolled around an outer surface of the inner shell 1 so that its end portion 2a is headed downward.
  • the shell main body 3 of the embodiment has the following advantages.
  • the shell main body 3 is made of one double-rolling flat plate and formed to have the inner shell 1 and outer shell wrapping the inner shell 1 each having noncircular cylindrical shape and defined by the small arc portions 4 and 5 alternating with the large arc portions 6 and 7, and one of the small arc portions 4 and 5 is provided with the shell overlap portion 8 with the clearance for discharging vapor in the gaps 5a, 6a, and 7a into the inside or outside of the shell main body 3. This brings decrease of vapor-pressure rise and prevents the inner shell 1 and the outer shell 2 from being deformed by the vapor pressure rise.
  • the water accumulated in the bottom portion of the shell main body 3 does not easily enter the gap 7a through the first clearance 1b of the shell overlap portion 8, since the inner-side portion 1 a of the flat plate is headed upward and located at the position higher than a bottom portion of the inner surface of the inner shell 1.
  • the shell main body 1 may have a cross section in any other shape, as long as it is not a perfect circle but is defined by alternated small arc portions and large arc portions, for example, a cross section in a laterally long, flattish shape such as an oval and a racing track, or a cross section in a substantially rectangular shape with small arc-shaped corner portions.

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

Claims (4)

  1. Corps principal de coque (3) adapté pour un silencieux, le corps principal de coque (3) comprenant :
    une coque interne (1) présentant une forme cylindrique dotée d'une section transversale qui est non circulaire et définie par de petites parties d'arc gauche et droite (4, 5) alternant avec de grandes parties d'arc inférieure et supérieure (6, 7) ;
    une coque externe (2) enveloppant une surface externe de la coque interne (1) et présentant une forme cylindrique dotée d'une section transversale qui est non circulaire et définie par de petites parties d'arc gauche et droite (4, 5) alternant avec de grandes parties d'arc inférieure et supérieure (6, 7) ; et
    des plaques d'extrémité (9, 10) fixées à la coque externe (2) pour fermer les ouvertures du corps principal de coque (3) ; dans lequel
    le corps principal de coque est caractérisé en ce que
    la coque interne (1) et la coque externe (2) sont formées en enroulant deux fois une plaque plate de sorte que la plaque plate présente une partie d'extrémité côté interne (1a) et une partie d'extrémité côté externe (2a) qui se superposent avec une partie prise en sandwich (12a) de la plaque plate située entre celles-ci au niveau d'une des petites parties d'arc (4 ; 5) dans une direction circonférentielle du corps principal de coque (3) pour former une partie de recouvrement de coque (8) dans laquelle la partie côté interne (1a) et la partie d'extrémité côté externe (2a) sont en contact avec la partie prise en sandwich (12a) de la plaque plate ; dans lequel l'autre des petites parties d'arc (5 ; 4) de la coque interne (1) et l'autre des petites parties d'arc (5 ; 4) de la coque externe (2) sont en contact l'une avec l'autre, dans lequel
    la partie d'extrémité côté interne (1a), la partie d'extrémité côté externe (2a) et la partie prise en sandwich (12a) de la partie de recouvrement de coque (8) sont soudées par point à des positions (S) à des intervalles dans une direction longitudinale du corps principal de coque (3) de sorte que la partie d'extrémité côté interne (1a) et la partie prise en sandwich (12a) forment un premier jeu (1b) entre celles-ci destiné à faire communiquer un espace formé entre une des grandes parties d'arc inférieure et supérieure (6 ; 7) des coques interne et externe (1 ; 2) et un espace interne (I) du corps de coque principal (3) l'un avec l'autre à travers le premier jeu (1b) et de sorte que la partie d'extrémité côté externe (2a) et la partie prise en sandwich (12a) forment un second jeu (2b) entre celles-ci pour faire communiquer un espace formé entre l'autre des grandes parties d'arc inférieure et supérieure (7 ; 6) et un extérieur (O) du corps principal de coque (3) l'un avec l'autre à travers le second jeu (2b) pour évacuer la vapeur dans les espaces (6a, 7a).
  2. Corps principal de coque (3) selon la revendication 1, dans lequel
    la partie d'extrémité côté externe (2a) est dirigée vers le bas.
  3. Corps principal de coque (3) selon la revendication 1 ou la revendication 2, dans lequel la partie d'extrémité côté interne (1a) est orientée vers le haut et située dans une position plus élevée qu'une partie inférieure d'une surface interne de là coque interne (1).
  4. Corps principal de coque (3) selon l'une quelconque des revendications 1 à 3, dans lequel au moins une des parties d'extrémité côté interne et côté externe (1a, 2a) peut être défléchie par la pression de la vapeur dans l'espace (6a, 7a) de sorte qu'une zone d'évacuation de vapeur du jeu (1b, 2b) est agrandie.
EP05291634A 2004-08-25 2005-08-01 Corps de silencieux Expired - Lifetime EP1630372B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004245772 2004-08-25

Publications (2)

Publication Number Publication Date
EP1630372A1 EP1630372A1 (fr) 2006-03-01
EP1630372B1 true EP1630372B1 (fr) 2007-10-10

Family

ID=35395671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291634A Expired - Lifetime EP1630372B1 (fr) 2004-08-25 2005-08-01 Corps de silencieux

Country Status (3)

Country Link
EP (1) EP1630372B1 (fr)
DE (1) DE602005002800T2 (fr)
ES (1) ES2294657T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5609836B2 (ja) * 2011-09-27 2014-10-22 トヨタ自動車株式会社 マフラー

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2187431A (en) * 1938-02-03 1940-01-16 Herbert S Powell Method of assembling mufflers
US2958389A (en) * 1957-04-08 1960-11-01 Oldberg Mfg Company Silencer or muffler
US3531345A (en) * 1968-11-08 1970-09-29 Theodore M Torosian Repair of automotive exhaust system
US4333545A (en) * 1980-09-15 1982-06-08 Thrush Incorporated Back-fire resistant lock seam for muffler shells
JPS59208119A (ja) * 1983-05-13 1984-11-26 Sankei Giken Kogyo Kk 触媒コンバ−タ
US5398407A (en) * 1991-07-08 1995-03-21 Scambia Industrial Developments Aktiengesellschaft Method for producing a device for muffling sound or catalytic treatment of exhaust
US5422445A (en) * 1994-04-11 1995-06-06 Midas International Corporation Vehicular muffler having expansion joint
JP2002206422A (ja) * 2001-01-12 2002-07-26 Sankei Kogyo Kk マフラ用シェル

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE602005002800T2 (de) 2008-08-28
DE602005002800D1 (de) 2007-11-22
ES2294657T3 (es) 2008-04-01
EP1630372A1 (fr) 2006-03-01

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