JPS60150417A - Exhaust pipe of engine in motorcycle, etc. - Google Patents
Exhaust pipe of engine in motorcycle, etc.Info
- Publication number
- JPS60150417A JPS60150417A JP688084A JP688084A JPS60150417A JP S60150417 A JPS60150417 A JP S60150417A JP 688084 A JP688084 A JP 688084A JP 688084 A JP688084 A JP 688084A JP S60150417 A JPS60150417 A JP S60150417A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- exhaust pipe
- engine
- circular arc
- arc
- 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.)
- Pending
Links
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 ; 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
- F01N13/08—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 gas passages, pipes or tubes
- F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/04—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for motorcycles
Abstract
Description
【発明の詳細な説明】
（＋／ｎ業１−の利用分野）
この発明は、自動−輪ルや自動五輪重に搭載されるエン
ジンのｔｅｌ気管に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Application of +/N Industry 1-) This invention relates to a tel trachea of an engine mounted on an automatic vehicle or an automatic Olympic vehicle.
（従来技術）
例えば１１動゛輪１ｊのエンジンには一般に排気管が連
結され、この抽気管にはマフラーが連結される。そして
、エンジンの排気はこれら排気管とマフラーを通って損
出される。(Prior Art) For example, an engine with 11 moving wheels 1j is generally connected to an exhaust pipe, and a muffler is connected to this bleed pipe. Then, the exhaust gas from the engine is lost through these exhaust pipes and the muffler.
−１，記排気管には外観−にの体裁を向Ｉ−させるため
に損気管外面がクロームメンキなどで表面処理される場
合がある。この場合、クロームメンキは高温となること
によって変色する傾向を有するものであるため、抽気管
外面が高温化しないように、この１ノ１気管が相ｌｊ、
に喉め合わされた外管と内存とでなるニル管構造とされ
、エンジンのυ１気が内管内を通過するよう構成された
ものがある。-1. In order to improve the appearance of the exhaust pipe, the outer surface of the exhaust pipe may be surface-treated with chrome coating or the like. In this case, since chrome steel has a tendency to discolor when exposed to high temperatures, this 1-1 trachea has a phase lj,
Some have a nil tube structure consisting of an outer tube and an inner tube that are fitted at the throat, and are configured so that υ1 air from the engine passes through the inner tube.
一方、排気管は限られた重体全長の中で所定の長さを確
保するため、エンジンのシリンター前面側から一旦前方
に突出され、その後、後方に向って円弧形状に折曲され
、更に後方に向って直線形状に延びマフラーに連結され
たものがある。On the other hand, in order to ensure a predetermined length within the limited overall length of the heavy body, the exhaust pipe is first projected forward from the front side of the engine's cylinder, then bent into an arc shape toward the rear, and then further rearward. There is one that extends in a straight line towards the other side and is connected to the muffler.
ところで、１−記のような排気管を成形する場合、先に
外管と内管とをそれぞれ円弧形状と直線形状を有するよ
うに別個に形成し、これら両管を嵌め合わそうとすると
、これら両管はそれぞれ円弧形状の部分と直線形状の部
分とを有しているため、外管の内周面と内管の外周面と
が接し合って、嵌め合わすことのできない場合がある。By the way, when molding an exhaust pipe as described in 1-, the outer pipe and the inner pipe are first formed separately to have an arc shape and a straight line shape, respectively, and if you try to fit these two pipes together, Since both tubes each have an arcuate portion and a linear portion, the inner circumferential surface of the outer tube and the outer circumferential surface of the inner tube may come into contact with each other and cannot be fitted together.
このため、このような排気管の成形は例えば次のような
水油手段でなされている。即ち、外管と内管とを共に直
線形状の状態において相Ｗに嵌め合わせ、これら両管の
間に水を注入し、次に、これを凍らせてから、内、外管
を同時に所定形状に折曲するものである。For this reason, such exhaust pipes are formed using, for example, the following water-oil method. That is, both the outer tube and the inner tube are fitted into the phase W in a linear state, water is injected between these two tubes, then this is frozen, and the inner and outer tubes are simultaneously shaped into a predetermined shape. It is something that can be bent.
しかしながら、１−記のような成形によれば、内、９Ｉ
管への水の注入や凍結などの作業が必要であり、１数が
極めて複雑である。However, according to the molding as described in 1-, 9I
Work such as injecting water into the pipe and freezing it is necessary, making the number 1 extremely complicated.
（発明の目的）
この発明は、１−記のような＋３情に注目してなされた
もので、円弧形状の部分と直線形状の部分を有する一東
管構造の排気管の成形をするに際し、この成形ｆ＋業を
容易化することを［１的とする。(Objective of the Invention) This invention was made by paying attention to the +3 circumstances as described in 1-, and when molding an exhaust pipe with an Ito-pipe structure having an arc-shaped part and a straight-shaped part, The first objective is to facilitate this molding process.
（発明の構成）
１、記１１的を達成するためのこの発明の特徴とすると
ころは、外管に嵌め込まれる内管が円弧形状の部分と直
線形状の部分とに分割された点にある。(Structure of the Invention) 1. A feature of the present invention for achieving the eleventh objective is that the inner tube fitted into the outer tube is divided into an arc-shaped portion and a linear portion.
（実施例） 以下、この発明の実施例を図面により説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図から第３図において、■は１−１動−輪重で、そ
の車体フレーム２にはエンジン３か取り伺けられている
。４は１１１１輪、５は後輪である。In FIGS. 1 to 3, ■ indicates a 1-1 dynamic wheel load, and an engine 3 is mounted on the vehicle body frame 2. 4 is the 1111 wheel, and 5 is the rear wheel.
１−記エンジン３は中気筒で２サイクルエンジンとされ
、シリンターフ、ピストン８および点火プラグ９を有し
ている。このシリンダー７の後部側には吸気ポートｌｌ
が形成され、同１−シリング−７の前部側には損気ポー
ト１２が形成されている。1- The engine 3 is a two-stroke engine with a middle cylinder, and has a cylinder turf, a piston 8, and a spark plug 9. The rear side of this cylinder 7 has an intake port ll
is formed, and a loss-of-air port 12 is formed on the front side of the 1-shilling-7.
１３は排気管でその前端がに記排気ボー）１２に対し前
部連結手段１４により連結され、この胡気管１３の後端
には後部連結ｆ段１５によりマフラー１６が連結されて
いる。この胡気管１３はほぼ同軸−１−で相！１．に嵌
め合わされた外管１８と内管１９とでなる二重管構造と
され、内管１９内を損気が通過するよう構成されている
。13 is an exhaust pipe whose front end is connected to the exhaust bow 12 by a front connecting means 14, and a muffler 16 is connected to the rear end of the exhaust pipe 13 by a rear connecting stage 15. This Hu trachea 13 is almost coaxial -1- and phase! 1. It has a double-tube structure consisting of an outer tube 18 and an inner tube 19 that are fitted together, and is configured so that lost air passes through the inner tube 19.
上記前部連結手段１４は特に第３図で示すように外管１
８に溶接されたフランジ２１と、このフランジ２１を押
え具２２を介してシリング−７に締め伺けるポルト２３
とを有している。２４はカスケントである。The front connecting means 14 is particularly connected to the outer tube 1 as shown in FIG.
A flange 21 welded to 8, and a port 23 that allows this flange 21 to be tightened to shilling 7 via a holding tool 22.
It has 24 is Kaskent.
また、１−配接部連結手段１５は特に第４図で示すよう
に外／ｉ′ｔ１８の外面に遊転可能に嵌め合わされたナ
ンド２６と、マフラー１６端に溶接された筒状ポルト２
７と、外管１８外面とナツト２６との間に挿入されたカ
スケント２８とを有している。そして、このガスケット
２８を外管１８外面に押し伺けるようにナツト２６が筒
状ポルト２７に捩し込まれている。In addition, as shown in FIG. 4, the 1-junction connecting means 15 includes a Nand 26 that is rotatably fitted to the outer surface of the outer/i't 18, and a cylindrical port 2 that is welded to the end of the muffler 16.
7, and a casket 28 inserted between the outer surface of the outer tube 18 and the nut 26. A nut 26 is screwed into the cylindrical port 27 so that the gasket 28 can be pushed onto the outer surface of the outer tube 18.
１−記拮気管１３は、その前端側が排気ボーＩ・１２か
ら一］Ｊ前方に突出され、その後、後方に向って折曲さ
れた円弧形状の部分１３ａとされ、後端側がこの円弧形
状の部分１３ａの後端から後方に向って延びる直線形状
の部分１３ｂとされている。1-The antagonistic trachea 13 has an arc-shaped portion 13a that is protruded forward from the exhaust bow I. A linear portion 13b extends rearward from the rear end of the portion 13a.
１、記内管１９は円弧形状の部分１９ａと直線形状の部
分１９ｂとに分割されている。この分割部における円弧
形状の部分１９ａの端部はテーパ形状部３０とされ、一
方、直線形状の部分１．９ ｂの端部は逆テーパ形状部
３１とされ、テーパ形状部３０が逆テーパ形状部３１内
に嵌め込まれている。1. The inner tube 19 is divided into an arc-shaped portion 19a and a straight-line portion 19b. The end of the arc-shaped portion 19a in this divided portion is a tapered portion 30, while the end of the linear portion 1.9b is a reverse tapered portion 31, and the tapered portion 30 is a reverse tapered portion. It is fitted into the section 31.
１−１記逆テ一パ形状ｉ’１ｌ１３１外周縁が外管１８
の内周面に当接すると共に、内（ｒ！１９の両端に形成
された外フランジ３２．３２外周縁も同１：外省１８の
内周面に当接して外管１８と内ｒｌ’ｌ’１９との間に
所１ｌ−（ｎ間隙が形成されている。1-1 Reverse taper shape i'1l131 outer periphery is outer tube 18
At the same time, the outer flange 32.32 outer periphery formed at both ends of the inner (r! 19, a gap 1l-(n is formed therebetween).
１−記逆テーパ形状部３１の外周縁は第５図で示すよう
に外管１８に栓溶接され、この溶接で直線形状の部分１
９ｂが外ｆｑ １８内に固定される６また１円弧形状の
部分１９ａは直線形状の部分１９ｂと、前記フランジ２
１とに挟まれて外管１８内に固定される。1- The outer peripheral edge of the inverted tapered portion 31 is plug-welded to the outer tube 18 as shown in FIG.
9b is fixed inside the outer fq 18. The arc-shaped part 19a is connected to the straight-line part 19b and the flange 2.
1 and fixed within the outer tube 18.
次に、上記排気管１３を成形するためのＬ順を第２図を
参照して説明すると、先ず、所定の形状に形成された外
管１８の前端側から内管１９の円弧形状の部分１９ａを
挿入する。この挿入が完了すれば外Ｉｔｌ ｇ前端にフ
ランジ２１を溶接する。Next, the L order for forming the exhaust pipe 13 will be explained with reference to FIG. 2. First, from the front end side of the outer pipe 18 formed in a predetermined shape, Insert. Once this insertion is completed, the flange 21 is welded to the front end of the outer Itlg.
次に、外管１８の後端側から内管１９の直線形状の部分
１９ｂを挿入する。更に、１−配置弧形状の部分１９ａ
をフランジ２１と共に挟み伺けるようにこのｆＣｔＱ形
状の部分１９ｂを挿入するとテーパ形状部３０と逆テー
パ形状部３１とが１・１動的に嵌り合ってこれらの芯出
しか行なわれる。この状態で直線形状の部分１９ｂを外
管１８に溶接し固定する。Next, the linear portion 19b of the inner tube 19 is inserted from the rear end side of the outer tube 18. Furthermore, the 1-arrangement arc-shaped portion 19a
When this fCtQ-shaped portion 19b is inserted so that it can be sandwiched together with the flange 21, the tapered portion 30 and the reverse tapered portion 31 are dynamically fitted 1:1, and their centering is performed. In this state, the linear portion 19b is welded and fixed to the outer tube 18.
（発明の効果）
この発明によれば、内管が円弧形状の部分と直線形状の
部分とに分割されたため、−毛管構造の胡気管の成形は
外管と、内管の円弧形状の部分と、直線形状の部分とを
それぞれ別個に所定形状に形成した後、これらを組み立
てることで達成される。よって、従来の水油手段のよう
な複雑な１数は不要であり、排気管の成形作業は容易化
される。(Effects of the Invention) According to the present invention, since the inner tube is divided into an arc-shaped part and a straight-line part, the forming of the capillary structure can be done by dividing the inner tube into the outer tube and the arc-shaped part of the inner tube. This is achieved by separately forming the linear portions into predetermined shapes and then assembling them. Therefore, there is no need for a complicated number of units such as the conventional water-oil means, and the molding operation of the exhaust pipe is facilitated.
図はこの発明の実施例を示し、第１図は自動二輪中の全
体側面図、第２図は第１図の要部拡大断面図、第３図は
第２図の部分拡大図、第４図は同第２図の部分拡大図、
第５図は第４図のＶ−Ｖ線矢視断面図である。
１伊豐自動二輪車、３ｅ・エンジン、１３・Ｑ４」気管
、１３ａ・・円弧形状の部分、１３ｂ・・直線形状の部
分、１８・争外管、１９・・内管、１９ａ・・円弧形状
の部分、１９ｂ・・直線形状の部分。The drawings show an embodiment of the present invention, in which Fig. 1 is an overall side view of the motorcycle, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is a partial enlarged view of Fig. 2, and Fig. 4 is an enlarged sectional view of the main part of Fig. 1. The figure is a partially enlarged view of Figure 2.
FIG. 5 is a sectional view taken along the line V-V in FIG. 4. 1 Iyo motorcycle, 3e, engine, 13, Q4' trachea, 13a... arc-shaped part, 13b... straight-line part, 18-outer pipe, 19... inner pipe, 19a... arc-shaped part Part, 19b... straight line shaped part.
Claims (1)
千′庁構造とされ、その軸方向・端側か円弧形状とされ
、他端側か直線形状とされたエンジン用排気省であって
、ｋ記内管が円弧形状の部分と直線形状の部分とに分割
されたことを特徴とする自動°輪重等におけるエンジン
の排気管。1. Exhaust saving engine for engines, which has a circular structure consisting of an outer part and an inner part fitted into phase 1i, and has an arc shape on one end in the axial direction and a straight shape on the other end. An exhaust pipe for an engine in an automatic wheel loader, etc., characterized in that the inner pipe is divided into an arc-shaped part and a linear part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP688084A JPS60150417A (en) | 1984-01-17 | 1984-01-17 | Exhaust pipe of engine in motorcycle, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP688084A JPS60150417A (en) | 1984-01-17 | 1984-01-17 | Exhaust pipe of engine in motorcycle, etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60150417A true JPS60150417A (en) | 1985-08-08 |
Family
ID=11650536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP688084A Pending JPS60150417A (en) | 1984-01-17 | 1984-01-17 | Exhaust pipe of engine in motorcycle, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60150417A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62291416A (en) * | 1986-06-11 | 1987-12-18 | Yamaha Motor Co Ltd | Exhaust device for engine |
| EP0643202A1 (en) * | 1993-04-22 | 1995-03-15 | Erhardt Bischoff GmbH & Co KG | Flange for fastening pipes to an engine block |
| EP0715064A1 (en) * | 1994-11-30 | 1996-06-05 | Erhardt Bischoff GmbH & Co KG | Flanged joint |
| JP2002070546A (en) * | 2000-09-04 | 2002-03-08 | Shinba Iron Works Inc | Exhaust system pipe mounted with catalyst pipe and its manufacturing method |
| EP2299082A1 (en) * | 2009-09-02 | 2011-03-23 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system, a saddle riding type vehicle having the same, and a method of manufacturing and mounting an exhaust pipe |
| EP2703616A1 (en) * | 2012-09-04 | 2014-03-05 | Kawasaki Jukogyo Kabushiki Kaisha | Method of making a vehicle |
-
1984
- 1984-01-17 JP JP688084A patent/JPS60150417A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62291416A (en) * | 1986-06-11 | 1987-12-18 | Yamaha Motor Co Ltd | Exhaust device for engine |
| EP0643202A1 (en) * | 1993-04-22 | 1995-03-15 | Erhardt Bischoff GmbH & Co KG | Flange for fastening pipes to an engine block |
| EP0715064A1 (en) * | 1994-11-30 | 1996-06-05 | Erhardt Bischoff GmbH & Co KG | Flanged joint |
| JP2002070546A (en) * | 2000-09-04 | 2002-03-08 | Shinba Iron Works Inc | Exhaust system pipe mounted with catalyst pipe and its manufacturing method |
| EP2299082A1 (en) * | 2009-09-02 | 2011-03-23 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system, a saddle riding type vehicle having the same, and a method of manufacturing and mounting an exhaust pipe |
| CN102003261A (en) * | 2009-09-02 | 2011-04-06 | 雅马哈发动机株式会社 | Exhaust system, a saddle riding type vehicle having the same, and a method of manufacturing and mounting an exhaust pipe |
| US8678038B2 (en) | 2009-09-02 | 2014-03-25 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust system, a saddle riding type vehicle having the same, and a method of manufacturing and mounting an exhaust pipe |
| EP2703616A1 (en) * | 2012-09-04 | 2014-03-05 | Kawasaki Jukogyo Kabushiki Kaisha | Method of making a vehicle |
| JP2014047761A (en) * | 2012-09-04 | 2014-03-17 | Kawasaki Heavy Ind Ltd | Vehicle manufacturing method |
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