JP2833294B2 - Exhaust member joining device - Google Patents
Exhaust member joining deviceInfo
- Publication number
- JP2833294B2 JP2833294B2 JP3276208A JP27620891A JP2833294B2 JP 2833294 B2 JP2833294 B2 JP 2833294B2 JP 3276208 A JP3276208 A JP 3276208A JP 27620891 A JP27620891 A JP 27620891A JP 2833294 B2 JP2833294 B2 JP 2833294B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- flexible pipe
- cylindrical
- axial direction
- bellows
- 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
Links
Landscapes
- Joints Allowing Movement (AREA)
- Exhaust Silencers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用内燃機関の２
つの排気部材、たとえばエキゾストマニホルドとエキゾ
ストマニホルド、または排気管と排気管を、ベローズ状
のフレキシブルパイプを介して接合する排気部材接合装
置に関する。The present invention relates to an internal combustion engine for a vehicle.
The present invention relates to an exhaust member joining apparatus for joining two exhaust members, for example, an exhaust manifold and an exhaust manifold, or an exhaust pipe and an exhaust pipe via a bellows-like flexible pipe.
【０００２】[0002]
【従来の技術】６気筒内燃機関のエキゾストマニホルド
を３気筒つづに分割し両マニホルドをフレキシブルパイ
プで接合した装置は、実開昭５４−９７６２３号公報に
より知られており、また、２つの排気管をベローズタイ
プのフレキシブルパイプで接合した構造は、実開昭５４
−１６３２２１号公報等により知られている。2. Description of the Related Art A device in which an exhaust manifold of a six-cylinder internal combustion engine is divided into three cylinders and the two manifolds are connected by a flexible pipe is known from Japanese Utility Model Laid-Open Publication No. 54-97623. The structure in which the pipes are joined by bellows-type flexible pipes is
This is known from, for example, JP-A-163221.
【０００３】従来構造では、図４または図５に示すよう
に、エキゾストマニホルドまたは排気管２、４の対向端
部は軸方向にストレートに延びたままとなっており、そ
の外周に、軸方向両端の屈曲が半径方向外側に屈曲して
いるベローズ６が、そのままあるいは軸方向に短く延び
る当て金８を外周側に装着して、溶接されていた。In the conventional structure, as shown in FIG. 4 or FIG. 5, the opposed ends of the exhaust manifold or the exhaust pipes 2 and 4 are extended straight in the axial direction, and the outer periphery thereof is provided in the axial direction. The bellows 6 whose both ends are bent outward in the radial direction are welded as they are or by attaching an abutment 8 extending short in the axial direction to the outer peripheral side.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来構造で
は、機関振動、排気流振動、車両走行振動等により、対
向エキゾストマニホルドまたは排気管２、４に微小相対
変位あるいは微小相対回転が繰返し起こったときに、溶
接部Ａ、または、ベローズ６の当て金８の端部角部に当
たる部位Ｂに、局部集中応力が繰返し生じ、ベローズ６
が傷み易いという問題があった。However, in the conventional structure, minute relative displacement or minute relative rotation occurs repeatedly in the opposed exhaust manifold or the exhaust pipes 2 and 4 due to engine vibration, exhaust flow vibration, vehicle running vibration and the like. At this time, local concentrated stress is repeatedly generated in the welded portion A or in a portion B of the bellows 6 which is in contact with the end corner of the metal plate 8, and the bellows 6
However, there was a problem that it was easily damaged.
【０００５】本発明は、内燃機関の排気部材同志を接合
するベローズタイプのフレキシブルパイプを備えた排気
部材接合装置の耐久性を向上せしめることを目的とす
る。SUMMARY OF THE INVENTION It is an object of the present invention to improve the durability of an exhaust member joining apparatus having a bellows type flexible pipe for joining exhaust members of an internal combustion engine.
【０００６】[0006]
【課題を解決するための手段】上記目的は、本発明によ
れば、次の排気部材接合装置によって、達成される。す
なわち、間隔をおいて軸方向に互いに対向し、対向端部
に半径方向外側に膨出する膨出部が形成された、２つの
排気部材と、蛇腹部とその軸方向両側の円筒状端部を有
し、前記蛇腹部の軸方向両側の屈曲が半径方向内側に屈
曲しており、前記円筒状端部が前記排気部材の膨出部の
外周に沿わされている、フレキシブルパイプと、前記フ
レキシブルパイプの円筒状端部の外周に装着され、前記
フレキシブルパイプの円筒状端部の軸方向外側端から該
円筒状端部の軸方向内側端を超えて前記蛇腹部の端部の
半径方向内側屈曲部の半径方向外側空間まで延びる円筒
状の当て金と、を備え、前記排気部材の膨出部の外周
部、前記フレキシブルパイプの円筒状端部の軸方向外側
端部、および前記円筒状の当て金の軸方向外側端部が、
一体に溶接されている、排気部材接合装置。According to the present invention, the above object is attained by the following exhaust member joining apparatus. That is, two exhaust members having bulging portions that are radially outwardly bulged at opposite ends in the axial direction and that are spaced apart from each other, a bellows portion, and cylindrical end portions on both axial sides thereof. A flexible pipe comprising: a bellows portion, wherein bending at both axial sides of the bellows portion is bent radially inward, and wherein the cylindrical end portion is along an outer periphery of a bulging portion of the exhaust member. Attached to the outer periphery of the cylindrical end of the pipe, and bent radially inward of the end of the bellows portion from the axially outer end of the cylindrical end of the flexible pipe to the axially inner end of the cylindrical end. A cylindrical support extending to a radially outer space of the portion, an outer peripheral portion of a bulging portion of the exhaust member, an axial outer end of a cylindrical end of the flexible pipe, and the cylindrical support. The axially outer end of the gold
An exhaust member joining device that is integrally welded.
【０００７】[0007]
【作用】本発明の排気部材接合装置では、フレキシブル
パイプの蛇腹部の軸方向端部の屈曲が半径方向内側に屈
曲していること、また、円筒状の当て金がフレキシブル
パイプの円筒状端部の軸方向外側端から該円筒状端部の
軸方向内側端を超えて蛇腹部の端部の半径方向内側屈曲
部の半径方向外側空間まで延びていること、により、フ
レキシブルパイプは当て金の軸方向内側端角部に当るこ
とはない。また、フレキシブルパイプは外周側を当て金
で押えられて溶接付けされているので、溶接部にも無理
な荷重が作用することはない。これらによって、フレキ
シブルパイプに振動による繰返し荷重がかかっても、従
来のような局部集中応力が生じず、フレキシブルパイ
プ、ひいては排気部材接合装置の耐久性が向上する。In the exhaust member joining apparatus according to the present invention, the bellows portion of the flexible pipe is bent radially inward at the axial end, and the cylindrical pad is bent at the cylindrical end of the flexible pipe. Extending from the axially outer end of the cylindrical end to the radially outer space of the radially inner bent portion of the bellows end beyond the axially inner end of the cylindrical end. It does not hit the inside corner in the direction. In addition, since the outer periphery of the flexible pipe is pressed and welded by the backing metal, an unreasonable load does not act on the welded portion. As a result, even if a repeated load is applied to the flexible pipe due to vibration, local concentrated stress unlike the related art does not occur, and the durability of the flexible pipe and the exhaust member joining apparatus is improved.
【０００８】[0008]
【実施例】以下に、本発明の望ましい実施例に係る排気
部材接合装置の望ましい実施例を、図１、図２および図
３を参照して説明する。図１において、排気部材接合装
置１０は、２つの排気部材１２、１４と、フレキシブル
パイプ１６と、円筒状の当て金１８と、を有する。ま
た、排気浄化装置１０は、インナパイプ２０を有してい
てもよい。２つの排気部材１２、１４は、内燃機関のエ
キゾストマニホルドとエキゾストマニホルド、または排
気管と排気管から成る。図示例は、６気筒エンジンのエ
キゾストマニホルドを３気筒つづにつけたエキゾストマ
ニホルドを示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an exhaust member joining apparatus according to a preferred embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3. FIG. In FIG. 1, the exhaust member joining apparatus 10 includes two exhaust members 12 and 14, a flexible pipe 16, and a cylindrical pad 18. Further, the exhaust emission control device 10 may have an inner pipe 20. The two exhaust members 12, 14 comprise an exhaust manifold and an exhaust manifold of an internal combustion engine, or an exhaust pipe and an exhaust pipe. The illustrated example shows an exhaust manifold in which three cylinders each having an exhaust manifold of a six-cylinder engine are attached.
【０００９】このようなエキゾストマニホルドおよびフ
レキシブルパイプ１６は、たとえば、図２、図３に示す
ように、２ステージ過給機付エンジンに適用できる。図
２、図３において、５０はエンジン、１２、１４は排気
マニホルドを示す。排気マニホルド１２、１４は排気干
渉を伴わない＃１〜＃３の気筒群と＃４〜＃６気筒群の
２つに集合され、その集合部が排気マニホルド１２、１
４の一部をなす連通路によってフレキシブルパイプ１６
を介して互いに連通されている。５２、５４は互いに並
列に配置された主ターボチャージャ、副ターボチャージ
ャである。ターボチャージャ５２、５４のそれぞれのタ
ービン５２ａ、５４ａは排気マニホルド１２、１４の集
合部に接続され、それぞれのコンプレッサ５２ｂ、５４
ｂは、インタクーラ５６、スロットル弁５８を介してサ
ージタンク６０に接続されている。主ターボチャージャ
５２は低吸入空気量域から高吸入空気量域まで作動さ
れ、副ターボチャージャ５４は低吸入空気量域で停止さ
れる。双方のターボチャージャ５２、５４の作動、停止
を可能ならしめるために、副ターボチャージャ５４のタ
ービン５４ａの下流には、アクチュエータ６２によって
開閉作動する排気切替弁６４が、コンプレッサ５４ｂの
下流には、アクチュエータ６６によって開閉作動する吸
気切替弁６８が設けられる。吸、排気切替弁６８、６４
の両方とも全開のときは、両方のターボチャジャ５２、
５４が作動され、このときにはフレキシブルパイプ１６
内にはほとんど排気ガスは流れない。また、吸、排気弁
６８、６４の両方が全閉のときは、副ターボチャージャ
５４は停止され、このときにはフレキシブルパイプ１６
内を、排気ガスがエキゾストマニホルド１４からエキゾ
ストマニホルド１２に向って流れる。Such an exhaust manifold and flexible pipe 16 can be applied to a two-stage supercharged engine, for example, as shown in FIGS. 2 and 3, reference numeral 50 denotes an engine, and reference numerals 12 and 14 denote exhaust manifolds. The exhaust manifolds 12 and 14 are grouped into two groups of cylinders # 1 to # 3 and cylinders # 4 to # 6 that do not cause exhaust interference, and the gathering part is the exhaust manifolds 12, 1
4, the flexible pipe 16
Are communicated with each other via 52 and 54 are a main turbocharger and a sub turbocharger arranged in parallel with each other. The respective turbines 52a, 54a of the turbochargers 52, 54 are connected to a collection of the exhaust manifolds 12, 14, and the respective compressors 52b, 54
b is connected to a surge tank 60 via an intercooler 56 and a throttle valve 58. The main turbocharger 52 is operated from the low intake air amount range to the high intake air amount region, and the sub turbocharger 54 is stopped in the low intake air amount region. In order to enable the operation and stoppage of both turbochargers 52 and 54, an exhaust switching valve 64 that is opened and closed by an actuator 62 is provided downstream of the turbine 54a of the sub-turbocharger 54, and an actuator is provided downstream of the compressor 54b. An intake switching valve 68 which is opened and closed by 66 is provided. Intake / exhaust switching valve 68, 64
When both are fully open, both turbochargers 52,
54 is activated, and the flexible pipe 16
Almost no exhaust gas flows inside. When both the intake and exhaust valves 68 and 64 are fully closed, the sub-turbocharger 54 is stopped.
Inside, exhaust gas flows from the exhaust manifold 14 toward the exhaust manifold 12.
【００１０】排気部材１２、１４は、軸方向に互いに間
隔をおいて対向しており、対向端部に半径方向外側に膨
出する膨出部２２、２４を有している。排気部材１２、
１４の端部に膨出部２２、２４を形成する理由は、第１
に、フレキシブルパイプ１６との溶接部位置をできるだ
け半径方向外側に隔たらせて溶接部を低温にするため
と、第２に、フレキシブルパイプ１６の軸方向端部の屈
曲を半径方向内側に向わせることを可能にするためであ
る。膨出部２２、２４の軸方向端面２６、２８は半径方
向内側にいくに従って互いに軸方向に接近する方向に傾
斜しており、この傾斜とフレキシブルパイプ１６の軸方
向両端の半径方向内側に向かう屈曲部分の傾斜がほぼ一
致させてある。膨出部２２、２４の外周面と軸方向端面
２６、２８の移行部の角部は面取りされている。The exhaust members 12 and 14 are opposed to each other at an interval in the axial direction, and have bulging portions 22 and 24 bulging radially outward at opposite ends. Exhaust member 12,
The reason why the bulging portions 22 and 24 are formed at the end of the
Secondly, the position of the welded portion with the flexible pipe 16 is made as far outward as possible in the radial direction to lower the temperature of the welded portion. Second, the bending of the axial end of the flexible pipe 16 is directed radially inward. This is to make it possible. The axial end surfaces 26, 28 of the bulging portions 22, 24 are inclined in a direction approaching each other in the radial direction toward the inside in the radial direction, and this inclination and the bending toward the radially inward ends of both ends of the flexible pipe 16 in the axial direction. The slopes of the parts are almost matched. Corners of transition portions between the outer peripheral surfaces of the bulging portions 22 and 24 and the axial end surfaces 26 and 28 are chamfered.
【００１１】フレキシブルパイプ１６は、オーステナイ
トステンレス製で、蛇腹部３０とその軸方向両側の円筒
状端部３２、３４を有する。蛇腹部３０は、その軸方向
両端部に、半径方向内側に向って屈曲する半径方向内側
屈曲部３６、３８を有する。従来装置ではベローズの軸
方向両端の屈曲は半径方向外側に向かう。フレキシブル
パイプ１６の円筒状端部３２、３４は、断面が軸方向に
ストレートに延びており、排気部材１２、１４の膨出部
２２、２４の円筒状外周面の外周に沿わされ接触されて
いる。The flexible pipe 16 is made of austenitic stainless steel and has a bellows portion 30 and cylindrical ends 32, 34 on both axial sides thereof. The bellows portion 30 has radially inner bent portions 36 and 38 bent radially inward at both ends in the axial direction. In the conventional device, the bending at both ends in the axial direction of the bellows is directed outward in the radial direction. The cylindrical ends 32 and 34 of the flexible pipe 16 extend straight in cross section in the axial direction, and are in contact with the outer peripheral surfaces of the cylindrical outer peripheral surfaces of the bulging portions 22 and 24 of the exhaust members 12 and 14. .
【００１２】円筒状の当て金１８は、フレキシブルパイ
プ１６の円筒状端部３２、３４の各々の外周に装着され
る。当て金１８は、フレキシブルパイプ１６の各円筒状
端部３２、３４より長い。当て金１８は、フレキシブル
パイプ１６の円筒状端部３２、３４の軸方向外側端か
ら、該円筒状端部３２、３４の軸方向内側端を超えて、
蛇腹部３０の端部の半径方向内側屈曲部３６、３８の半
径方向外側空間まで、軸方向に延びている。A cylindrical backing plate 18 is mounted on the outer periphery of each of the cylindrical ends 32 and 34 of the flexible pipe 16. The pad 18 is longer than each of the cylindrical ends 32, 34 of the flexible pipe 16. The backing plate 18 extends from the axially outer ends of the cylindrical ends 32, 34 of the flexible pipe 16 to the axially inner ends of the cylindrical ends 32, 34,
It extends in the axial direction to the radially outer space of the radially inner bent portion 36, 38 at the end of the bellows portion 30.
【００１３】排気部材１２、１４の膨出部２２、２４の
外周部、フレキシブルパイプ１６の円筒状端部３２、３
４の軸方向外側端部、および当て金１８の軸方向外側端
部は、一体に溶接されている。４０、４２は、この溶接
部を示している。The outer peripheral portions of the bulging portions 22 and 24 of the exhaust members 12 and 14 and the cylindrical ends 32 and 3 of the flexible pipe 16.
4 and the axially outer end of the backing plate 18 are integrally welded. Numerals 40 and 42 indicate this welded portion.
【００１４】インナパイプ２０は、フレキシブルパイプ
１６よりも半径方向内側に位置し、一方の排気部材１２
の膨出部２２から他方の排気部材１４の膨出部２４まで
軸方向に延びている。フレキシブルパイプ１６の内径
は、排気部材１２、１４の内径以上としてあり、排気の
流れを絞らないように、すなわち排気抵抗を増さないよ
うにしてある。The inner pipe 20 is located radially inward of the flexible pipe 16 and has one of the exhaust members 12.
From the bulging portion 22 of the other exhaust member 14 in the axial direction. The inner diameter of the flexible pipe 16 is equal to or larger than the inner diameter of the exhaust members 12 and 14 so as not to restrict the flow of exhaust gas, that is, not to increase exhaust resistance.
【００１５】つぎに、作用を説明する。２つの排気部材
１２、１４の、振動等による微小相対変位は、フレキシ
ブルパイプ１６の弾性変形によって吸収されるが、その
両端支持部には繰返し荷重がかかる。この場合、フレキ
シブルパイプ１６は、その両端の溶接部４０、４２にお
いて、膨出部２２、２４の外周面と当て金１８の間に挾
持されているので、無理な荷重がかかりにくい。また、
フレキシブルパイプ１６の蛇腹部３０の軸方向両端を半
径方向内側に屈曲させ、該半径方向内側屈曲部３６、３
８の内外周に、当て金１８と膨出部２２、２４の軸方向
端面２６、２８を位置させたので、フレキシブルパイプ
１６が当て金の軸方向内側端角部や膨出部２２、２４の
角部にあたって傷つくような事態は生じない。これらに
よって、フレキシブルパイプの両端の耐久性、信頼性が
著しく向上している。Next, the operation will be described. The minute relative displacement of the two exhaust members 12, 14 due to vibration or the like is absorbed by the elastic deformation of the flexible pipe 16, but a load is repeatedly applied to the support portions at both ends. In this case, since the flexible pipe 16 is clamped between the outer peripheral surfaces of the bulging portions 22 and 24 and the backing 18 at the welded portions 40 and 42 at both ends thereof, an excessive load is not easily applied. Also,
Both ends in the axial direction of the bellows portion 30 of the flexible pipe 16 are bent inward in the radial direction, and the radially inner bent portions 36, 3
The axial end faces 26 and 28 of the abutment 18 and the bulging portions 22 and 24 are located on the inner and outer peripheries of the flexible member 8. No damage is caused to the corners. As a result, the durability and reliability of both ends of the flexible pipe are significantly improved.
【００１６】また、排気部材１２、１４に半径方向外側
に膨出する膨出部２２、２４を設けて、その外周にフレ
キシブルパイプ１６の両端の溶接部４０、４２を位置さ
せているので、溶接部４０、４２の位置が高温の排気ガ
スに触れる排気部材１２、１４の内周部位から隔たって
いて、低温部に位置されており、腐食速度を低下されて
いる。オーステナイト系ステンレスは、塩が付着してい
ると、温度が高い程腐食量が大になる。実走行におい
て、融雪塩等がタイヤで巻きあげられ、当て金１８とフ
レキシブルパイプ１６の隙間に侵入するとそこに滞留し
上記腐食が発生する。腐食が進み、フレキシブルパイプ
１６を貫通する穴になると排気洩れの不具合を発生す
る。また、洩れる排気ガスでさらに高温になり不具合が
さらに加速する。しかし、本発明では当て金１８とフレ
キシブルパイプ１６の接触部は、膨出部２２、２４を設
けたことにより低温部となり、腐食速度を落とし、耐久
性、信頼性を向上している。Since the exhaust members 12 and 14 are provided with bulging portions 22 and 24 bulging radially outward, and the welding portions 40 and 42 at both ends of the flexible pipe 16 are located on the outer periphery thereof, welding is possible. The positions of the parts 40 and 42 are separated from the inner peripheral parts of the exhaust members 12 and 14 that come into contact with the high-temperature exhaust gas, and are located in the low-temperature parts, so that the corrosion rate is reduced. When salt is attached to austenitic stainless steel, the higher the temperature, the greater the amount of corrosion. In actual running, snow-melt salt or the like is rolled up by a tire and enters the gap between the paddle 18 and the flexible pipe 16 and stays there to cause the above-described corrosion. If corrosion progresses and the hole penetrates the flexible pipe 16, a problem of exhaust leakage occurs. Further, the temperature of the leaked exhaust gas is further increased, and the malfunction is further accelerated. However, in the present invention, the contact portion between the metal plate 18 and the flexible pipe 16 becomes a low-temperature portion due to the provision of the bulging portions 22 and 24, thereby reducing the corrosion rate and improving the durability and reliability.
【００１７】[0017]
【発明の効果】本発明によれば、当て金を、フレキシブ
ルパイプの円筒状端部の軸方向内側端を超えて蛇腹部の
端部の半径方向内側屈曲部の半径方向外側空間まで延ば
したから、フレキシブルパイプが当て金の角部に当って
傷づくことがなくなり、フレキシブルパイプ、ひいては
排気部材接合装置の耐久性を向上させることができる。According to the present invention, the abutment extends beyond the axially inner end of the cylindrical end of the flexible pipe to the radially outer space of the radially inner bent portion of the bellows end, The flexible pipe does not hit the corner of the backing plate and is not damaged, and the durability of the flexible pipe and the exhaust member joining device can be improved.
【図１】本発明の一実施例に係る排気部材接合装置の断
面図である。FIG. 1 is a sectional view of an exhaust member joining apparatus according to an embodiment of the present invention.
【図２】本発明実施例の排気部材接合装置を過給機付エ
ンジンのエキゾストマニホルドに適用した場合のエキゾ
ストマニホルド部位の正面図である。FIG. 2 is a front view of an exhaust manifold portion when the exhaust member joining device according to the embodiment of the present invention is applied to an exhaust manifold of a supercharged engine.
【図３】本発明実施例の排気部材接合装置を過給機付エ
ンジンのエキゾストマニホルドに適用した場合の過給機
付エンジンの系統図である。FIG. 3 is a system diagram of a supercharged engine when the exhaust member joining apparatus according to the embodiment of the present invention is applied to an exhaust manifold of a supercharged engine.
【図４】２つのエキゾストマニホルド部分を連結した従
来の排気部材接合装置の断面図である。FIG. 4 is a cross-sectional view of a conventional exhaust member joining apparatus in which two exhaust manifold portions are connected.
【図５】２つの排気管部分を連結した従来の排気部材接
合装置の断面図である。FIG. 5 is a sectional view of a conventional exhaust member joining apparatus in which two exhaust pipe portions are connected.
１０ 排気部材接合装置 １２ 排気部材 １４ 排気部材 １６ フレキシブルパイプ １８ 当て金 ２０ インナパイプ ２２ 膨出部 ２４ 膨出部 ２６ 軸方向端面 ２８ 軸方向端面 ３０ 蛇腹部 ３２ 円筒状端部 ３４ 円筒状端部 ３６ 半径方向内側屈曲部 ３８ 半径方向内側屈曲部 ４０ 溶接部 ４２ 溶接部 DESCRIPTION OF SYMBOLS 10 Exhaust member joining device 12 Exhaust member 14 Exhaust member 16 Flexible pipe 18 Deposit 20 Inner pipe 22 Swelling part 24 Swelling part 26 Axial end face 28 Axial end face 30 Bellows part 32 Cylindrical end part 34 Cylindrical end part 36 Radially inward bend 38 Radial inward bend 40 Weld 42 Weld
Claims (1)
向端部に半径方向外側に膨出する膨出部が形成された、
２つの排気部材と、 蛇腹部とその軸方向両側の円筒状端部を有し、前記蛇腹
部の軸方向両側の屈曲が半径方向内側に屈曲しており、
前記円筒状端部が前記排気部材の膨出部の外周に沿わさ
れている、フレキシブルパイプと、 前記フレキシブルパイプの円筒状端部の外周に装着さ
れ、前記フレキシブルパイプの円筒状端部の軸方向外側
端から該円筒状端部の軸方向内側端を超えて前記蛇腹部
の端部の半径方向内側屈曲部の半径方向外側空間まで延
びる円筒状の当て金と、を備え、 前記排気部材の膨出部の外周部、前記フレキシブルパイ
プの円筒状端部の軸方向外側端部、および前記円筒状の
当て金の軸方向外側端部が、一体に溶接されている、こ
とを特徴とする排気部材接合装置。1. A bulging part which is opposed to each other in the axial direction at intervals and which bulges outward in the radial direction at an opposing end.
It has two exhaust members, a bellows part and cylindrical ends on both sides in the axial direction, and the bends on both sides in the axial direction of the bellows part are bent inward in the radial direction,
A flexible pipe, the cylindrical end of which extends along the outer periphery of the bulging portion of the exhaust member; and an axial direction of the cylindrical end of the flexible pipe, which is mounted on the outer periphery of the cylindrical end of the flexible pipe. A cylindrical pad extending from an outer end to a radially outer space of a radially inner bent portion of the bellows end beyond an axially inner end of the cylindrical end; An exhaust member, wherein an outer peripheral portion of the protruding portion, an axially outer end of the cylindrical end of the flexible pipe, and an axially outer end of the cylindrical pad are integrally welded. Joining equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3276208A JP2833294B2 (en) | 1991-09-30 | 1991-09-30 | Exhaust member joining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3276208A JP2833294B2 (en) | 1991-09-30 | 1991-09-30 | Exhaust member joining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0586855A JPH0586855A (en) | 1993-04-06 |
| JP2833294B2 true JP2833294B2 (en) | 1998-12-09 |
Family
ID=17566196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3276208A Expired - Fee Related JP2833294B2 (en) | 1991-09-30 | 1991-09-30 | Exhaust member joining device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2833294B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784881A (en) * | 1996-01-11 | 1998-07-28 | Hitachi Metals, Ltd. | Multi-part exhaust manifold assembly with welded connections |
| US6290173B1 (en) | 1999-10-28 | 2001-09-18 | Commuter Air Technology, Inc. | Aircraft cracked stack prevention apparatus and method |
| KR101031248B1 (en) * | 2008-09-02 | 2011-04-29 | 삼성중공업 주식회사 | Compensator of engine |
| CN112963231B (en) * | 2021-03-29 | 2024-07-19 | 广西玉柴船电动力有限公司 | Waste gas supercharging system of communicated exhaust pipe |
-
1991
- 1991-09-30 JP JP3276208A patent/JP2833294B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0586855A (en) | 1993-04-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |