JPS6316117A - Exhaust device for multicylinder engine - Google Patents
Exhaust device for multicylinder engineInfo
- Publication number
- JPS6316117A JPS6316117A JP15967886A JP15967886A JPS6316117A JP S6316117 A JPS6316117 A JP S6316117A JP 15967886 A JP15967886 A JP 15967886A JP 15967886 A JP15967886 A JP 15967886A JP S6316117 A JPS6316117 A JP S6316117A
- Authority
- JP
- Japan
- Prior art keywords
- flange plate
- exhaust
- exhaust pipe
- flange
- onto
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、複数の排気管をもつ内燃機関の排気装置にお
けるエンジンと排気管の連結部の改良にｒｙ：Ｉｖる。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to an improvement in the connection between an engine and an exhaust pipe in an exhaust system for an internal combustion engine having a plurality of exhaust pipes.
（従来の技術）
従来の多気筒機関において°は、排気管が一体の排気マ
ニホルドの形態をなす場合又は個別の配管による場合の
いずれかにおいても、排気管の流入口側には台管ごとに
フランジを設け、このフランジをエンジンブロックに固
定して排気口を排気管に連通させていた（例えば実開昭
５６−１２９５１３、特開昭５４−１３４２１１）。(Prior Art) In conventional multi-cylinder engines, whether the exhaust pipe is in the form of an integrated exhaust manifold or separate piping, there is a A flange was provided, and this flange was fixed to the engine block to communicate the exhaust port with the exhaust pipe (for example, Utility Model Publication No. 56-129513, Japanese Patent Application Laid-open No. 54-134211).
（発明が解決しようとする問題点）
排気とフランジを一体に鋳造するときは、各排気管に対
してフランジを設けることは容易であるが、フランジと
排気管を別面に作って溶接により一体にする場合は、微
妙な曲面をもち、かつその曲面が管ごとに異なる排気管
に正確にフランジを溶接することは困テＨな作業であり
、フランジが正確に溶接されていないとエンジンブロッ
クに気密に接続することがむずかしくなる。(Problem to be Solved by the Invention) When the exhaust and flange are integrally cast, it is easy to provide a flange for each exhaust pipe. If the flange is to be accurately welded to the exhaust pipe, which has a delicately curved surface and the curved surface differs from pipe to pipe, it is a difficult task, and if the flange is not welded accurately, it may damage the engine block. It becomes difficult to connect airtightly.
（問題点を解決するための手段）
本発明は、一枚の板体を各排気管に共通のフランジとす
ることにより前記問題点を解決したもので、その手段は
、触媒容器の流入口に排気集合室を設け、該排気集合室
に複数の排気管を連接し、各排気管の上流側を湾曲して
流入口をエンジンブロックの排気口に接続する多気筒機
関の排気装置において、各排気管の流入口を一枚のフラ
ンジ板に設けた接続穴にそれぞれ溶接し、該フランジ板
には、中間部に小幅部分を設け、周辺部に多数の取付穴
を設け、該取付穴を通りフランジ板の移動を許容する小
径のボルトにより、フランジ板をエンジンブロック側に
圧着したことを特徴とする。(Means for solving the problem) The present invention solves the above problem by using a single plate as a common flange for each exhaust pipe. In an exhaust system for a multi-cylinder engine, an exhaust gas collection chamber is provided, a plurality of exhaust pipes are connected to the exhaust gas collection chamber, and the upstream side of each exhaust pipe is curved to connect the inlet to the exhaust port of the engine block. The inlets of the pipes are welded to connection holes provided on a flange plate, and the flange plate has a narrow part in the middle and numerous mounting holes around the periphery, and the flange is inserted through the mounting holes. The flange plate is crimped to the engine block using small diameter bolts that allow movement of the plate.
（作 用）
前記のとおり、排気管端は一枚のフランジであるから、
エンジンブロックとの気密接続は容易に行なわれる。エ
ンジンの運転により排気管が熱膨張し、その膨張量が相
互に異なる場合は、フランジ板は小幅部分で撓み、取付
穴の部分では取付穴とボルトの寸法差によって移動を許
容し、排気管、排気集合室に作用する応力を小さくする
。(Function) As mentioned above, since the exhaust pipe end is a single flange,
A hermetic connection with the engine block is easily made. When the exhaust pipe thermally expands due to engine operation, and the amount of expansion differs, the flange plate bends at the narrow part, and the mounting hole part allows movement due to the dimensional difference between the mounting hole and the bolt. Reduce the stress acting on the exhaust gas collection chamber.
（実施例）
以下、直列４気筒エンジンに実施する本発明の実施例を
図面によって説明する。(Example) Hereinafter, an example of the present invention implemented in an in-line four-cylinder engine will be described with reference to the drawings.
第１図、第２図において、Ｅはエンジン、（１）は触媒
容器で、該触媒容器（１）は、楕円形のハニカム型触媒
（４）をガスケット（５） （６）を介して収容し、フ
ランジ（７）、（８）の周縁（９）を溶接し、下流側に
接続用フランジ（ＩＧを溶接する。In Figures 1 and 2, E is the engine, (1) is a catalyst container, and the catalyst container (1) accommodates an oval honeycomb catalyst (4) via gaskets (5) and (6). Then, the peripheral edges (9) of the flanges (7) and (8) are welded, and a connecting flange (IG) is welded to the downstream side.
触媒容器（１）の上流側には、排気合流ｖ（１１１１が
溶接される。該合流室ｌ′１１）は、深絞りにより成形
され、フランジ（Ｉｚから排気管側にふくらみ、平面状
の四つの壁面（１３ａ）（１３ｂ）（１３ｃ）（１３ｄ
ｌが形成してあり、（１３８）と（１３ｄ ｌはそれぞ
れ側面を向き、（１３ｂ）と（１３Ｃ）は僅かの傾きは
あるがいずれも正面を向いている。An exhaust gas confluence v (1111) is welded to the upstream side of the catalyst container (1). The confluence chamber l'11 is formed by deep drawing and has a flat four-dimensional shape that bulges from the flange (Iz to the exhaust pipe side). wall surfaces (13a) (13b) (13c) (13d
(138) and (13d l each face the side, and (13b) and (13C) both face the front although there is a slight inclination.
側壁（１３ａ ）Ｆ１３ ｄ ｌにはバーリング加工に
よって突縁（１４ａ ）（１４ｄ ）をもつ開口が設け
てあり、正面壁（１３ｂ ）（１３ｃ ）には普通の開
口が設けである。そして各開口に排気管（１５ａ ）（
Ｉｓ ｂ ）（Ｉｓ Ｃ）（１５ｄ ） （７）下流側
を挿入して溶接している。The side walls (13a) F13dl are provided with openings having projecting edges (14a) (14d) by burring, and the front walls (13b) (13c) are provided with ordinary openings. And each opening has an exhaust pipe (15a) (
Is b ) (Is C) (15d) (7) The downstream side is inserted and welded.
これらの触媒容器（１）、排気集合室ａｉ）、排気管（
１５ａ）〜（Ｉｓ ｄ ）は、ステンレス鋼としては膨
張係数の小さいフェライト系のＳＯ３４０９１が用いら
れ溶接棒にはＳＯ３４３０１が用いられる。These catalyst containers (1), exhaust collection chamber ai), exhaust pipes (
In 15a) to (Is d), ferritic SO34091 with a small expansion coefficient is used as the stainless steel, and SO34301 is used as the welding rod.
排気管のうち、正面壁（１３ｂ ）（１３ｃ ）に接続
する排気管（ＩＳｂ）（１５Ｃ）はほぼ２次元的にゆる
やかに湾曲するカーブをもつが、両側壁（１３８０１３
ｄ ｌに接続する排気管（１３ａ ）（１３ｄ ）は、
フランジ板（ＩＯから立上がったのち一旦湾曲し、下流
側において前記湾曲方向からみて斜め横向きに２度目の
湾曲をして両側壁（１３ａ ）（１３ｄ ）の間口に入
り、突縁（１４ａ）（１４ｄ）に溶接されている。Of the exhaust pipes, the exhaust pipes (ISb) (15C) that connect to the front walls (13b) (13c) have a gentle two-dimensional curve;
The exhaust pipes (13a) (13d) connected to dl are
After rising from the flange plate (IO, it curves once, then curves a second time diagonally sideways when viewed from the curved direction on the downstream side, enters the frontage of both side walls (13a) (13d), and flange plate (14a) ( 14d).
フランジ板００は、４個の接続穴（１７） （１７）・
・・・・・と多数の取付穴（Ｉ＆０ε・・・・・・、軽
量化用の開口ａ■ａ９・・・・・・等が穿設してあり、
更に中間部をＶ形に切欠いて小幅部分■を設けている。The flange plate 00 has four connection holes (17) (17)
......and a large number of mounting holes (I & 0ε..., openings a, a9, etc. for weight reduction, etc.) are drilled.
Furthermore, a V-shaped notch is cut out in the middle part to provide a narrow part (■).
この切欠き形状はＶ形に限らずＵ形であってもよく、両
側から切欠いて中央に小幅部分を残してもよい。第１図
に示すように、フランジ板ａｅの各接続穴ＯＤに各排気
管の流入口を挿入し、ビード■によって溶接し、このフ
ランジ板ａθをエンジンブロックの排気口部に当接して
ボルト■、ナツトＱ＠によって圧着する。ボルト■の直
径は、取付穴（１ｇの直径より十分小さいものとして、
排気系の加熱により排気管等が膨張したとき、７ランジ
板（ＩＯが、仮想線＜１６８ ）で示すように変形する
のを許容するようにする。このフランジ板（ｌｅも同材
料を使用するのが好ましい。The shape of this notch is not limited to a V-shape, but may be a U-shape, or it may be cut out from both sides to leave a narrow portion in the center. As shown in Fig. 1, the inlet of each exhaust pipe is inserted into each connection hole OD of flange plate ae, welded with bead ①, this flange plate aθ is brought into contact with the exhaust port of the engine block, and bolt ② is inserted. , crimp with nut Q@. The diameter of the bolt ■ should be sufficiently smaller than the diameter of the mounting hole (1g).
When the exhaust pipe, etc. expands due to heating of the exhaust system, it is allowed to deform as shown by the 7-lunge plate (IO <168). It is preferable to use the same material for this flange plate (le).
図中■■はシリンダブロックの上端−側と下端他側に固
定したステイで、ステイ■により排気集合室のフランジ
Ｇつに連結し、ステイ■を排気管路■に連結して排気系
を支持する。なａ３、図中■は０２センサ取付穴、■は
カバー取付Ｆａじ、ωは排気温度計取付穴である。In the figure, ■■ is a stay fixed to the upper end side and the other side of the lower end of the cylinder block, and the stay ■ connects to the flanges G of the exhaust collection chamber, and the stay ■ connects to the exhaust pipe ■ to support the exhaust system. do. In the figure, ■ is the 02 sensor mounting hole, ■ is the cover mounting hole, and ω is the exhaust temperature meter mounting hole.
エンジンの運転により、排ガスは各排気管を通って排気
集合室（ｌｉ）に至り、ここから触媒（４）巾の細孔を
通って流出する。このとき排気系は加熱されて膨張し、
ステイ■に支持されろフランジＯより上方の部分では上
方に伸びようとする。When the engine is running, the exhaust gases pass through each exhaust pipe to the exhaust collection chamber (li), from where they exit through a pore the width of the catalyst (4). At this time, the exhaust system is heated and expands.
The portion above the flange O supported by the stay ■ tends to extend upward.
排気管のうち、外側の排気管（１５ａ ）（１ｓ ｄ
）は長いため外気により冷却され易く、内側の排気管（
１５ｂ）（１５Ｃ）は短いため比較的高温であるため伸
び吊が大きくフランジ板ａＧの中央は、両側に比べて上
方へより多く押され、線（７６ａ ）で示すように中央
部が高くなる変形をしようとする。Among the exhaust pipes, the outer exhaust pipe (15a) (1s d
) is long, so it is easily cooled by outside air, and the inner exhaust pipe (
15b) (15C) is short and has a relatively high temperature, so it stretches and hangs a lot, and the center of the flange plate aG is pushed upward more than both sides, resulting in a deformation in which the center becomes higher, as shown by line (76a). try to.
本発明においては、この変形を許容するためフランジ板
の中間部に小幅部分■を設け、かつ取付穴（Ｉｅを通る
ボルト■の直径を該穴（′ｌ＆の直径より十分小さくし
であるため、フランジ板ｌ′ｌＧは、ボルト■、ナツト
Ｑ＠による圧着力に抗しで（１６ａ ）のように変形す
る。これにより各排気管及び排気集合室Ｇつの壁に大き
な応力の発生するのを避けることができる。これにより
熱膨張係数が大きく熱応力が発生し易いステンレス鋼を
用いても内部応力を小さくおさえることができる。In the present invention, in order to allow for this deformation, a narrow portion (2) is provided in the middle of the flange plate, and the diameter of the bolt (2) passing through the mounting hole (Ie) is made sufficiently smaller than the diameter of the hole ('l&). The flange plate l'lG deforms as shown in (16a) against the pressure applied by the bolts and nuts [email protected] prevents the generation of large stress on the walls of each exhaust pipe and the exhaust collection chamber G. As a result, even if stainless steel, which has a large coefficient of thermal expansion and tends to generate thermal stress, is used, internal stress can be kept low.
（発明の効果）
本発明は、以上のとおり排気管の流入口のフランジを、
各排気管に共通の一枚のフランジ板で構成したから、フ
ランジ板と排気管を接続する際にフランジ板の各接続穴
に各排気管の流入口を挿入すれば容易に位置決めができ
、この部分を溶接することにより正確なフランジ面が容
易に形成される。そして熱膨張量の差による熱応力は、
小幅部分によって回Ｍ−１にとができるため、熱膨張係
数の大きいステンレス鋼板の使用を可能にしエンジンの
！１吊化を行なうことができる。(Effects of the Invention) As described above, the present invention provides a flange at the inlet of an exhaust pipe.
Since it is composed of a single flange plate that is common to each exhaust pipe, when connecting the flange plate and the exhaust pipe, you can easily position the inlet of each exhaust pipe by inserting it into each connection hole of the flange plate. Precise flange surfaces are easily formed by welding the sections. The thermal stress due to the difference in thermal expansion is
Since the narrow part allows the angle M-1 to be sharpened, it is possible to use stainless steel plates with a large coefficient of thermal expansion, making it possible to improve the engine's performance. 1 suspension can be carried out.
図面は本発明の実施例を示し、第１図はエンジンに取付
けた状態を示す側面図、第２図は正面図である。
（１） ・・・触媒容器、（１１１・・・排気集合室、
（１５ａ ）（１５ｂ ）（１５Ｃ）（１５ｄ ）・・
・排気管、ａｅ・・・フランジ板、（１７１・・・接続
穴、ａｅ・・・取付穴、■・・・小幅部分、■・・・ボ
ルト。The drawings show an embodiment of the present invention, with FIG. 1 being a side view showing the state in which it is attached to an engine, and FIG. 2 being a front view. (1)...Catalyst container, (111...Exhaust gas collection chamber,
(15a) (15b) (15C) (15d)...
・Exhaust pipe, ae...flange plate, (171...connection hole, ae...mounting hole, ■...narrow width part, ■...bolt.
Claims (1)
複数の排気管を連接し、各排気管の上流側を湾曲して流
入口をエンジンブロックの排気口に接続する多気筒機関
の排気装置において、各排気管の流入口を一枚のフラン
ジ板に設けた接続穴にそれぞれ溶接し、該フランジ板に
は、中間部に小幅部分を設け、周辺部に多数の取付穴を
設け、該取付穴を通りフランジ板の移動を許容する小径
のボルトにより、フランジ板をエンジンブロック側に圧
着したことを特徴とする、多気筒機関の排気装置。A multi-cylinder engine in which an exhaust gas collection chamber is provided at the inlet of the catalyst container, a plurality of exhaust pipes are connected to the exhaust gas collection chamber, and the upstream side of each exhaust pipe is curved to connect the inlet to the exhaust port of the engine block. In the exhaust system, the inlet of each exhaust pipe is welded to a connection hole provided in a flange plate, and the flange plate has a narrow part in the middle part and a large number of mounting holes in the peripheral part, An exhaust system for a multi-cylinder engine, characterized in that a flange plate is crimped to an engine block side using small diameter bolts that allow movement of the flange plate through the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15967886A JPS6316117A (en) | 1986-07-09 | 1986-07-09 | Exhaust device for multicylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15967886A JPS6316117A (en) | 1986-07-09 | 1986-07-09 | Exhaust device for multicylinder engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316117A true JPS6316117A (en) | 1988-01-23 |
| JPH0529765B2 JPH0529765B2 (en) | 1993-05-06 |
Family
ID=15698938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15967886A Granted JPS6316117A (en) | 1986-07-09 | 1986-07-09 | Exhaust device for multicylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316117A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271480A (en) * | 1991-09-11 | 1993-12-21 | Yamaha Hatsudoki Kabushiki Kaisha | Device for protecting oxygen sensor of motocycle |
| WO2007034099A1 (en) * | 2005-09-23 | 2007-03-29 | Renault Sport Technologies | Exhaust device for internal combustion engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539352U (en) * | 1978-09-07 | 1980-03-13 | ||
| JPS5750492U (en) * | 1980-09-08 | 1982-03-23 | ||
| JPS62114115U (en) * | 1986-01-09 | 1987-07-20 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3924169A (en) * | 1974-01-14 | 1975-12-02 | Sunbeam Corp | Mixer with speed control |
| DE7635178U1 (en) * | 1976-11-06 | 1978-04-27 | Fischer, Artur, Dr.H.C., 7244 Waldachtal | PLAY COLLECTION BLOCK |
-
1986
- 1986-07-09 JP JP15967886A patent/JPS6316117A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539352U (en) * | 1978-09-07 | 1980-03-13 | ||
| JPS5750492U (en) * | 1980-09-08 | 1982-03-23 | ||
| JPS62114115U (en) * | 1986-01-09 | 1987-07-20 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271480A (en) * | 1991-09-11 | 1993-12-21 | Yamaha Hatsudoki Kabushiki Kaisha | Device for protecting oxygen sensor of motocycle |
| US5360081A (en) * | 1991-09-11 | 1994-11-01 | Yamaha Hatsudoki Kabushiki Kaisha | Device for protecting oxygen sensor of motorcycle |
| WO2007034099A1 (en) * | 2005-09-23 | 2007-03-29 | Renault Sport Technologies | Exhaust device for internal combustion engine |
| FR2891206A1 (en) * | 2005-09-23 | 2007-03-30 | Renault Sport Technologies Soc | EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529765B2 (en) | 1993-05-06 |
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| RU27409U1 (en) | EXHAUST MANIFOLD FOR THE INTERNAL COMBUSTION ENGINE OF PASSENGER CARS, Predominantly of the VAZ FAMILY |
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