JP3934805B2 - Two-passage exhaust pipe - Google Patents

Two-passage exhaust pipe Download PDF

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Publication number
JP3934805B2
JP3934805B2 JP32810198A JP32810198A JP3934805B2 JP 3934805 B2 JP3934805 B2 JP 3934805B2 JP 32810198 A JP32810198 A JP 32810198A JP 32810198 A JP32810198 A JP 32810198A JP 3934805 B2 JP3934805 B2 JP 3934805B2
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JP
Japan
Prior art keywords
exhaust pipe
main body
partition plate
passage
pipe main
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 - Fee Related
Application number
JP32810198A
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Japanese (ja)
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JP2000154720A (en
Inventor
一弘 古橋
文男 細田
達己 山田
宏 橋本
和夫 石井
浩一 藤森
誠司 加藤
清隆 大塩
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.)
Honda Motor Co Ltd
Yutaka Giken Co Ltd
Original Assignee
Honda Motor Co Ltd
Yutaka Giken Co Ltd
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.)
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Priority to JP32810198A priority Critical patent/JP3934805B2/en
Publication of JP2000154720A publication Critical patent/JP2000154720A/en
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Publication of JP3934805B2 publication Critical patent/JP3934805B2/en
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Description

【０００１】
【発明の属する技術分野】
本発明は，排気管本体と，この排気管本体の内部を軸方向に延びる二通路に区画する仕切り板とからなる，二通路排気管に関する。
【０００２】
【従来の技術】
従来，かゝる二通路排気管として，図８に示すように，排気管本体０２の内周面に，仕切り板０３の両側端に形成した屈曲部０３ａを溶接して構成したものが知られている（例えば特開平９−２０９７４７号公報の図６Ｃ参照）。
【０００３】
【発明が解決しようとする課題】
かゝる二通路排気管は，一本の排気管を配管することにより，二本の排気通路を並設することができるから，排気干渉を回避しつゝ，配管のスペーサ効率を上げることができる。
【０００４】
ところで，従来の上記のような二通路排気管は，排気管本体の内周面に，仕切り板の両側端の屈曲部を溶接するものであるから，万一，溶接部が剥離すると排気管から仕切り板が脱落して二通路に対する仕切り機能を失うことになり，特に，配管上，曲げて使用する場合に，そのような不都合が生ずる虞がある。
【０００５】
本発明は，かゝる点に鑑みてなされたもので，曲げて使用する場合でも，仕切り板が脱落しないようにした，耐久性の高い前記二通路排気管を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するために，本発明は，排気管本体と，この排気管本体の内部を軸方向に延びる二通路に区画する仕切り板とからなる，二通路排気管において，排気管本体の相対向する側壁に，軸方向に延び且つ軸方向に並ぶ複数のスリット状連結孔を設ける一方，排気管本体の内周面に両側端を密着させる仕切り板に，前記複数の連結孔にそれぞれ嵌合する複数の連結突片を形成したことを第１の特徴とする。
【０００７】
この第１の特徴によれば，排気管本体と仕切り板とは，それらの連結孔及び連結突片の嵌合により結合されるので，排気管を曲げても，連結孔及び連結突片の嵌合が外れない限り，排気管本体内で仕切り板が脱落することはなく，耐久性が高い。
【０００８】
また本発明は，上記特徴に加えて，前記連結突片を前記連結孔の周縁部に溶接したことを第２の特徴とする。
【０００９】
この第２の特徴によれば，上記溶接により，連結孔及び連結突片の嵌合状態を強固に保つことができ，耐久性の向上に寄与し得る。また連結孔周縁部からの排ガスのリークを防ぐことができる。
【００１０】
さらに本発明は，同じく第１の特徴に加えて，前記連結突片の先端部を，排気管本体の外周面に沿って屈曲した屈曲部に形成したことを第３の特徴とする。
【００１１】
この第３の特徴によれば，前記連結突片の先端屈曲部により，連結孔及び連結突片の嵌合状態を強固に保つことができる。
【００１２】
【発明の実施の形態】
本発明の実施の形態を，添付図面に示す本発明の実施例に基づいて以下に説明する。
【００１３】
図１〜図３は本発明の第１実施例を示すもので，図１は二通路排気管の斜視図，図２は同排気管の分解斜視図，図３及び図４は同排気管の製造過程を示す横断面図，図５は本発明の第２実施例に係る二通路排気管の斜視図，図６は本発明の第３実施例に係る二通路排気管の斜視図，図７は本発明の第４実施例に係る二通路排気管の斜視図である。
【００１４】
先ず，本発明の第１実施例より説明する。
【００１５】
図１及び図２において，本発明の二通路排気管１は，鋼管からなる排気管本体２と，その内部に配設される帯状の仕切り板３を主たる構成要素とする。その仕切り板３は，横幅Ｓが排気管本体２の内径Ｄと等しく形成され，したがって排気管本体２内へのセット時には，両側端が排気管本体２の内周面に密着して，その内部を軸方向に延びる独立した第１及び第２通路２ａ，２ｂに区画する。
【００１６】
排気管本体２の相対向する側壁には，軸方向に延び且つ軸方向に並ぶ複数のスリット状連結孔４1 ，４1 …；４2 ，４2 …が穿設され，これら連結孔４1 ，４1 …；４2 ，４2 …の対応する複数の連結突片５1 ，５1 …；５2 ，５2 …が仕切り板３の両側端に形成され，これら連結突片５1 ，５1 …；５2 ，５2 …を連結孔４1 ，４1 …；４2 ，４2 …にそれぞれ嵌合することにより，排気管本体２及び仕切り板３が結合される。
【００１７】
連結突片５1 ，５1 …；５2 ，５2 …の連結孔４1 ，４1 …；４2 ，４2 …への嵌合に際しては，図３に示すように，排気管本体２の連結孔４1 ，４1 …；４2 ，４2 …を水平方向に向けた状態で，排気管本体２に上下方向の圧縮荷重Ｐｙを加えて，水平方向における排気管本体２の内径Ｄ′が仕切り板３両側の連結突片５1 ，５1 …；５2 ，５2 …の先端間距離Ａより大となるように，排気管本体２を断面に円形変形させる。そこで，仕切り板３を排気管本体２内に挿入して，先ず一側の連結突片５1 ，５1 …を一側の連結孔４1 ，４1 …にそれぞれ嵌合し，次いで，図４に示すように，排気管本体２に水平方向の圧縮荷重Ｐｘを加えて排気管本体２を原形に復元させると共に，他側の連結孔４1 ，４2 …を他側の連結突片５2 ，５2 …にそれぞれ嵌合する。
【００１８】
上記のように，排気管本体２と仕切り板３とは，連結孔４1 ，４1 …；４2 ，４2 …及び連結突片５1 ，５1 …；５2 ，５2 …の嵌合により結合されるので，排気管を曲げても，連結孔４1 ，４1 …；４2 ，４2 …及び連結突片５1 ，５1 …；５2 ，５2 …の嵌合が外れない限り，排気管本体２内で仕切り板３が脱落することはなく，耐久性が高い。
【００１９】
次に，図５に示す本発明の第２実施例について説明する。
この第２実施例は，仕切り板３の各連結突片５1 ，５1 …；５2 ，５2 …を排気管本体２の各連結孔４1 ，４1 …；４2 ，４2 …の周縁部に溶接７したもので，その他の構成は前実施例と同様であり，図中，前実施例との対応部分には，同一の符号を付して，その説明を省略する。
【００２０】
この第２実施例によれば，連結突片５1 ，５1 …；５2 ，５2 …及び連結孔４1 ，４1 …；４2 ，４2 …の周縁部との溶接７により，連結孔４1 ，４1 …；４2 ，４2 …及び連結突片５1 ，５1 …；５2 ，５2 …の嵌合状態を強固に保つことができ，耐久性の向上に寄与し得る。また連結孔４1 ，４1 …；４2 ，４2 …の周縁部からの排ガスのリークを防ぐことができる。
【００２１】
次に，図６に示す本発明の第３実施例について説明する。
【００２２】
この第３実施例は，仕切り板３の各連結突片５1 ，５1 …；５2 ，５2 …を，排気管本体２の各連結孔４1 ，４1 …；４2 ，４2 …を貫通して外方へ突出するように形成し，各連結孔４1 ，４1 …；４2 ，４2 …から突出した連結突片５1 ，５1 …；５2 ，５2 …の先端部を，排気管本体２の外周面に密着した屈曲部５ａに形成したもので，その屈曲部５ａの屈曲方向は，仕切り板３の一側々と他側々とで同方向とされる。その他の構成は，前記第１実施例と同様であり，図中，第１実施例との対応部分には，同一の符号を付して，その説明を省略する。
【００２３】
次に，図７に示す本発明の第４実施例について説明する。
【００２４】
この第４実施例は，各連結孔４1 ，４1 …；４2 ，４2 …を貫通して外方へ突出した各連結突片５1 ，５1 …；５2 ，５2 …の先端屈曲部５ａを，仕切り板３の一側々と他側々とで反対方向に屈曲させた点を除けば，前記第３実施例と同様の構成であり，図中，第３実施例との対応部分には，同一の符号を付して，その説明を省略する。
【００２５】
上記第３及び第４実施例によれば，各連結突片５1 ，５1 …；５2 ，５2 …の先端屈曲部により，連結孔４1 ，４1 …；４2 ，４2 …及び連結突片５1 ，５1 …；５2 ，５2 …の嵌合状態を強固に保つことができる。
【００２６】
以上，本発明の実施例を詳述したが，本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことができる。例えば，図６及び図７の第３及び第４実施例において，各連結突片５1 ，５1 …；５2 ，５2 …の先端屈曲部５ａ周縁を排気管本体２の外周面に溶接することもできる。
【００２７】
【発明の効果】
以上のように本発明の第１の特徴によれば，排気管本体と，この排気管本体の内部を軸方向に延びる二通路に区画する仕切り板とからなる，二通路排気管において，排気管本体の相対向する側壁に，軸方向に延び且つ軸方向に並ぶ複数のスリット状連結孔を設ける一方，排気管本体の内周面に両側端を密着させる仕切り板に，前記複数の連結孔にそれぞれ嵌合する複数の連結突片を形成したので，前記連結孔及び連結突片の嵌合が外れない限り，排気管本体内で仕切り板が脱落することはなく，耐久性が高い。
【００２８】
また本発明の第２の特徴によれば，前記連結突片を前記連結孔の周縁部に溶接したので，その溶接により連結孔及び連結突片の嵌合状態を強固に保つことができ，耐久性の向上に寄与し得るのみならず，連結孔周縁部からの排ガスのリークを防ぐことができる。
【００２９】
さらに本発明の第３の特徴によれば，前記連結突片の先端部を排気管本体の外周面に沿って屈曲させたので，その先端屈曲部により連結孔及び連結突片の嵌合状態を強固に保つことができる。
【図面の簡単な説明】
【図１】本発明の第１実施例に係る二通路排気管の斜視図。
【図２】同排気管の分解斜視図。
【図３】同排気管の一製造過程を示す横断面図。
【図４】同排気管の他の製造過程を示す横断面図。
【図５】本発明の第２実施例に係る二通路排気管の斜視図。
【図６】本発明の第３実施例に係る二通路排気管の斜視図。
【図７】本発明の第４実施例に係る二通路排気管の斜視図。
【図８】従来の二通路排気管の斜視図。
【符号の説明】
１・・・・・・二通路排気管
２・・・・・・排気管本体
２ａ，２ｂ・・二通路
３・・・・・・仕切り板
４1 ，４2 ・・連結孔
５1 ，５2 ・・連結突片
５ａ・・・・・屈曲部
７・・・・・・溶接[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-passage exhaust pipe comprising an exhaust pipe main body and a partition plate that divides the inside of the exhaust pipe main body into two passages extending in the axial direction.
[0002]
[Prior art]
Conventionally, as such a two-passage exhaust pipe, as shown in FIG. 8, a structure in which bent portions 03 a formed at both ends of the partition plate 03 are welded to the inner peripheral surface of the exhaust pipe main body 02 is known. (For example, refer to FIG. 6C of JP-A-9-209747).
[0003]
[Problems to be solved by the invention]
Such a two-passage exhaust pipe can be arranged in parallel by connecting a single exhaust pipe, thus avoiding exhaust interference and increasing the spacer efficiency of the pipe. it can.
[0004]
By the way, the conventional two-pass exhaust pipe as described above welds the bent portions at both ends of the partition plate to the inner peripheral surface of the exhaust pipe body. The partition plate will drop off and the partition function for the two passages will be lost, and this inconvenience may occur especially when the pipe is bent and used.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to provide a highly durable two-passage exhaust pipe in which a partition plate does not fall off even when bent and used.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a two-passage exhaust pipe comprising an exhaust pipe body and a partition plate that divides the interior of the exhaust pipe body into two passages extending in the axial direction. A plurality of slit-like connecting holes extending in the axial direction and arranged in the axial direction are provided on the side walls facing each other, and a partition plate that closely contacts both ends to the inner peripheral surface of the exhaust pipe body is fitted to the plurality of connecting holes, respectively. The first feature is that a plurality of connecting projection pieces are formed.
[0007]
According to the first feature, the exhaust pipe main body and the partition plate are coupled by fitting the connecting hole and the connecting projection piece. Therefore, even if the exhaust pipe is bent, the connection hole and the connecting projection piece are fitted. As long as it does not come off, the partition plate will not fall off in the exhaust pipe body, and the durability is high.
[0008]
In addition to the above feature, the present invention has a second feature in that the connecting projection piece is welded to a peripheral portion of the connecting hole.
[0009]
According to this 2nd characteristic, the fitting state of a connection hole and a connection protrusion can be firmly maintained by the said welding, and it can contribute to the improvement of durability. Moreover, the leak of the exhaust gas from a peripheral part of a connection hole can be prevented.
[0010]
Further, in addition to the first feature, the present invention has a third feature that the tip end portion of the connecting projection piece is formed as a bent portion that is bent along the outer peripheral surface of the exhaust pipe body.
[0011]
According to the third feature, the fitting state of the connection hole and the connection protrusion can be firmly maintained by the bent end of the connection protrusion.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.
[0013]
1 to 3 show a first embodiment of the present invention. FIG. 1 is a perspective view of a two-passage exhaust pipe, FIG. 2 is an exploded perspective view of the exhaust pipe, and FIGS. FIG. 5 is a perspective view of a two-pass exhaust pipe according to a second embodiment of the present invention, FIG. 6 is a perspective view of a two-pass exhaust pipe according to a third embodiment of the present invention, and FIG. These are the perspective views of the two channel | path exhaust pipe which concerns on 4th Example of this invention.
[0014]
First, the first embodiment of the present invention will be described.
[0015]
1 and 2, a two-passage exhaust pipe 1 according to the present invention includes an exhaust pipe main body 2 made of a steel pipe and a strip-shaped partition plate 3 disposed therein as main components. The partition plate 3 is formed so that the lateral width S is equal to the inner diameter D of the exhaust pipe main body 2, and therefore, when set in the exhaust pipe main body 2, both side ends are in close contact with the inner peripheral surface of the exhaust pipe main body 2. Is divided into independent first and second passages 2a and 2b extending in the axial direction.
[0016]
The side wall which faces the exhaust pipe main body 2, a plurality of slit-shaped connection hole 4 1 arranged in and axially extends in the axial direction, 4 1 ...; 4 2, 4 2 ... are bored, these coupling holes 4 1 , 4 1 ...; 4 2, 4 2 ... corresponding plurality of connecting projecting pieces 5 1, 5 1 ... of; 5 2, 5 2 ... are formed at both side ends of the partition plate 3, these connecting protrusion 5 1, The exhaust pipe main body 2 and the partition plate 3 are coupled by fitting 5 1 ...; 5 2 , 5 2 ... to the connecting holes 4 1 , 4 1 ...; 4 2 , 4 2 .
[0017]
Coupling protrusion 5 1, 5 1 ...; 5 2, 5 2 ... connection hole 4 1 of 4 1 ...; In 4 2, 4 2 ... fitted into, as shown in FIG. 3, the exhaust pipe main body 2 coupling holes 4 1, 4 1 ... of; 4 2, 4 2 ... in a state in which a horizontally oriented, by applying a compressive load Py in the vertical direction in the exhaust pipe main body 2, the inner diameter D of the exhaust pipe main body 2 in the horizontal direction The exhaust pipe body 2 is circularly deformed into a cross section so that 'is larger than the distance A between the tips of the connecting projections 5 1 , 5 1 ... 5 2 , 5 2 . Therefore, the partition plate 3 is inserted into the exhaust pipe main body 2 and the one side connecting projections 5 1 , 5 1 ... Are respectively fitted in the one side connecting holes 4 1 , 4 1 . 4, a horizontal compression load Px is applied to the exhaust pipe body 2 to restore the exhaust pipe body 2 to its original shape, and the other side connection holes 4 1 , 4 2 . 2 , 5 2 ,.
[0018]
As described above, the exhaust pipe main body 2 and the partition plate 3, coupling holes 4 1, 4 1 ...; 4 2, 4 2 ... and the connecting protrusion 5 1, 5 1 ...; 5 2, 5 2 ... fitted in since bound by case, even when bent exhaust pipe, the connection hole 4 1, 4 1 ...; 4 2, 4 2 ... and the connecting protrusion 5 1, 5 1 ...; 5 2, 5 2 ... fitting of As long as it does not come off, the partition plate 3 will not fall off in the exhaust pipe body 2, and the durability is high.
[0019]
Next, a second embodiment of the present invention shown in FIG. 5 will be described.
In the second embodiment, each coupling protrusion 5 1 of the partition plate 3, 5 1 ...; 5 2, 5 2 ... each connection hole 4 1 of the exhaust pipe main body 2 and 4 1 ...; 4 2, 4 2 ... The other parts are the same as those of the previous embodiment, and the corresponding parts in the figure are denoted by the same reference numerals and the description thereof is omitted.
[0020]
According to the second embodiment, the connecting protrusion 5 1, 5 1 ...; by welding 7 between the 4 2, 4 2 ... periphery of; 5 2, 5 2 ... and the coupling holes 4 1, 4 1 ... coupling holes 4 1, 4 1 ...; 4 2, 4 2 ... and the connecting protrusion 5 1, 5 1 ...; 5 2, 5 2 ... the fitted state can be kept firmly in, contribute to improvement in durability Can do. The coupling holes 4 1, 4 1 ...; it is possible to prevent leakage of exhaust gas from 4 2, 4 2 ... periphery of.
[0021]
Next, a third embodiment of the present invention shown in FIG. 6 will be described.
[0022]
In the third embodiment, the connecting protrusion 5 1 of the partition plate 3, 5 1 ...; 5 2, 5 2 ... and the connection hole 4 1 of the exhaust pipe main body 2, 4 1 ...; 4 2, 4 2 ... projecting outwardly through the connecting holes 4 1 , 4 1 ...; 4 2 , 4 2 ... projecting protrusions 5 1 , 5 1 ...; 5 2 , 5 2 ... Is formed in a bent portion 5a that is in close contact with the outer peripheral surface of the exhaust pipe body 2, and the bent direction of the bent portion 5a is the same in one side and the other side of the partition plate 3. The Other configurations are the same as those of the first embodiment. In the figure, the same reference numerals are given to the corresponding parts to the first embodiment, and the description thereof is omitted.
[0023]
Next, a fourth embodiment of the present invention shown in FIG. 7 will be described.
[0024]
In this fourth embodiment, the connecting holes 4 1, 4 1 ...; 4 2, 4 2 ... each connecting protrusion 5 1 projecting outward through a 5 1 ...; 5 2, 5 2 ... of Except for the point that the front end bent portion 5a is bent in the opposite direction on one side and the other side of the partition plate 3, the configuration is the same as that of the third embodiment. The corresponding parts are denoted by the same reference numerals, and the description thereof is omitted.
[0025]
According to the third and fourth embodiments, the connecting protrusion 5 1, 5 1 ...; by 5 2, 5 2 ... of bent end portion, connection hole 4 1, 4 1 ...; 4 2, 4 2 ... In addition, the fitting state of the connecting protrusions 5 1 , 5 1 ... 5 2 , 5 2 .
[0026]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary. For example, in the third and fourth embodiments of FIGS. 6 and 7, the peripheral edge of the bent end portion 5 a of each of the connecting protrusions 5 1 , 5 1 ... 5 2 , 5 2 . You can also
[0027]
【The invention's effect】
As described above, according to the first feature of the present invention, the exhaust pipe main body and the partition plate that divides the inside of the exhaust pipe main body into two passages extending in the axial direction are provided. A plurality of slit-like connecting holes extending in the axial direction and arranged in the axial direction are provided on opposite side walls of the main body, while a partition plate is attached to both inner ends of the exhaust pipe main body, Since a plurality of coupling protrusions that are fitted to each other are formed, the partition plate does not drop off in the exhaust pipe body unless the coupling holes and the coupling protrusions are disengaged, and the durability is high.
[0028]
Further, according to the second feature of the present invention, since the connecting protrusion is welded to the peripheral portion of the connecting hole, the connection state between the connecting hole and the connecting protrusion can be firmly maintained by the welding, and durability can be maintained. In addition to contributing to the improvement of the property, it is possible to prevent the exhaust gas from leaking from the peripheral edge of the connecting hole.
[0029]
Further, according to the third feature of the present invention, since the distal end portion of the connecting projection piece is bent along the outer peripheral surface of the exhaust pipe body, the fitting state of the connecting hole and the connecting projection piece is changed by the bent end portion. It can be kept strong.
[Brief description of the drawings]
FIG. 1 is a perspective view of a two-passage exhaust pipe according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the exhaust pipe.
FIG. 3 is a cross-sectional view showing one manufacturing process of the exhaust pipe.
FIG. 4 is a cross-sectional view showing another manufacturing process of the exhaust pipe.
FIG. 5 is a perspective view of a two-passage exhaust pipe according to a second embodiment of the present invention.
FIG. 6 is a perspective view of a two-passage exhaust pipe according to a third embodiment of the present invention.
FIG. 7 is a perspective view of a two-passage exhaust pipe according to a fourth embodiment of the present invention.
FIG. 8 is a perspective view of a conventional two-passage exhaust pipe.
[Explanation of symbols]
1 ...... second passage exhaust pipe 2 ...... exhaust pipe body 2a, 2b ... second passage 3 ...... partition plate 4 1, 4 2 ... connection holes 5 1, 5 2・ ・ Connecting protrusion 5a ・ ・ ・ Bend 7 ・ ・ ・ ・ ・ ・ Welding

Claims (3)

排気管本体（２）と，この排気管本体（２）の内部を軸方向に延びる二通路（２ａ，２ｂ）に区画する仕切り板（３）とからなる，二通路排気管において，
排気管本体（２）の相対向する側壁に，軸方向に延び且つ軸方向に並ぶ複数のスリット状連結孔（４1 ，４2 ）を設ける一方，排気管本体（２）の内周面に両側端を密着させる仕切り板（３）に，前記複数の連結孔（４1 ，４2 ）にそれぞれ嵌合する複数の連結突片（５1 ，５2 ）を形成したことを特徴とする，二通路排気管。In a two-passage exhaust pipe comprising an exhaust pipe main body (2) and a partition plate (3) dividing the inside of the exhaust pipe main body (2) into two passages (2a, 2b) extending in the axial direction,
A plurality of slit-like connecting holes (4 1 , 4 2 ) extending in the axial direction and arranged in the axial direction are provided on opposite side walls of the exhaust pipe main body (2), while the inner peripheral surface of the exhaust pipe main body (2) is provided. the partition plate (3) for adhering both side ends, and wherein the forming a plurality of connecting protrusion which respectively fit into the plurality of connection holes (4 1, 4 2) (5 1, 5 2), Two-passage exhaust pipe. 請求項１記載の二通路排気管において，
前記連結突片（５1 ，５2 ）を前記連結孔（４1 ，４2 ）の周縁部に溶接（７）したことを特徴とする，二通路排気管。The two-passage exhaust pipe according to claim 1,
A two-passage exhaust pipe characterized in that the connecting protrusions (5 1 , 5 2 ) are welded (7) to the periphery of the connecting holes (4 1 , 4 2 ). 請求項１記載の二通路排気管において，
前記連結突片（５1 ，５2 ）の先端部を，排気管本体（２）の外周面に沿って屈曲した屈曲部（５ａ）に形成したことを特徴とする，二通路排気管。The two-passage exhaust pipe according to claim 1,
A two-passage exhaust pipe characterized in that the tip of the connecting protrusion (5 1 , 5 2 ) is formed into a bent part (5a) bent along the outer peripheral surface of the exhaust pipe main body (2).
JP32810198A 1998-11-18 1998-11-18 Two-passage exhaust pipe Expired - Fee Related JP3934805B2 (en)

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JP32810198A JP3934805B2 (en) 1998-11-18 1998-11-18 Two-passage exhaust pipe

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Application Number Priority Date Filing Date Title
JP32810198A JP3934805B2 (en) 1998-11-18 1998-11-18 Two-passage exhaust pipe

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JP3934805B2 true JP3934805B2 (en) 2007-06-20

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Publication number Priority date Publication date Assignee Title
KR100946494B1 (en) * 2007-12-15 2010-03-10 현대자동차주식회사 Exhaust Pipe Structure of Engine
JP2009275806A (en) * 2008-05-14 2009-11-26 Shimada Phys & Chem Ind Co Ltd Tubular body and its manufacturing method
DE102014222296A1 (en) 2014-10-31 2016-05-04 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust gas treatment device

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