JPH0221542Y2 - - Google Patents
Info
- Publication number
- JPH0221542Y2 JPH0221542Y2 JP1984114107U JP11410784U JPH0221542Y2 JP H0221542 Y2 JPH0221542 Y2 JP H0221542Y2 JP 1984114107 U JP1984114107 U JP 1984114107U JP 11410784 U JP11410784 U JP 11410784U JP H0221542 Y2 JPH0221542 Y2 JP H0221542Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- assembly
- catalyst body
- exhaust assembly
- distribution plate
- 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
Links
- 239000003054 catalyst Substances 0.000 claims description 13
- 238000000746 purification Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003685 thermal hair damage Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は、オートバイに搭載するようなエン
ジンの排気ガス浄化装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an exhaust gas purification device for an engine mounted on a motorcycle.
オートバイに搭載するような多気筒エンジンで
は、各気筒の排気管を排気集合体に連結し、排気
集合体の後端左右に出口を設けて左右のマフラを
各々連結するようにしている。そして、最近で
は、排気集合体の出口に触媒体を収容し、排気ガ
スを酸化反応させて、浄化している。ところで、
この種の装置で、一つの気筒に失火が発生し、燃
焼しないままの生のガスが流れて、一方の触媒体
に集中して流れると、酸化反応が活発に行われ、
高温になつて触媒体が熱破損することがあり、使
用不能になつて交換しなければならなくなり、触
媒の耐久性が問題となることがある。
In a multi-cylinder engine such as that mounted on a motorcycle, the exhaust pipes of each cylinder are connected to an exhaust assembly, and exits are provided on the left and right rear ends of the exhaust assembly to connect the left and right mufflers, respectively. Recently, a catalyst body is housed at the outlet of the exhaust gas assembly to oxidize and purify the exhaust gas. by the way,
In this type of device, if a misfire occurs in one cylinder and the unburned raw gas flows and concentrates on one catalyst body, an oxidation reaction will take place actively.
The catalyst body may be thermally damaged due to high temperatures, becoming unusable and having to be replaced, and the durability of the catalyst may become a problem.
この考案は、かかる点に鑑み、一つの気筒に失
火が発生しても、排気集合体の中で、他の気筒の
燃焼した排気ガスとよく撹拌して、生ガスの集中
割合を減じ、触媒の熱破損が防げるエンジンの排
気ガス浄化装置を得ることを目的とする。
In view of these points, this idea was developed to mix well with the burned exhaust gas from other cylinders in the exhaust assembly even if a misfire occurs in one cylinder, thereby reducing the concentration ratio of raw gas and reducing the concentration of raw gas in the catalyst. The purpose of the present invention is to obtain an exhaust gas purification device for an engine that can prevent thermal damage to the engine.
以下、本考案を図面に示す実施例について説明
する。
Hereinafter, embodiments of the present invention shown in the drawings will be described.
図は四気筒エンジンの場合を示し、各気筒の排
気管１は、左右に２本ずつ分けて、排気集合体２
の前端左右に連結する。排気集合体２は、後端左
右に出口３を設け、触媒体４を各々左右の出口３
内に収容し、出口３には各々左右のマフラ５を連
結する。ところで、本考案は、排気集合体２内に
分配板６を設ける。分配板６は、左右に分れてい
て、かつ左右によつて下半分と上半分に分けら
れ、中央側を後寄りに傾けて配置してある。分配
板６は、各々、排気管１の投影面積の半分近くま
で覆う高さに設けてある。 The figure shows the case of a four-cylinder engine, and the exhaust pipe 1 of each cylinder is divided into two on the left and right, and an exhaust pipe 2 is formed on the left and right.
Connect to the front end left and right. The exhaust assembly 2 has outlets 3 on the left and right sides of the rear end, and the catalyst body 4 is connected to the left and right outlets 3, respectively.
The left and right mufflers 5 are connected to the outlet 3, respectively. By the way, in the present invention, a distribution plate 6 is provided within the exhaust assembly 2. The distribution plate 6 is divided into left and right parts, and divided into a lower half and an upper half depending on the left and right sides, and is arranged with the center side inclined toward the rear. The distribution plates 6 are each provided at a height that covers nearly half of the projected area of the exhaust pipe 1.
各排気管１を流れてくる圧力のある排気ガス
は、排気集合体２の広い部分に入つて拡散しなが
ら後方に流れる。そして、半分はそのまま分配板
６のない部分を直接通り過ぎて後側に流れ、半分
は分配板６に当つて流れを変えて流れる即ち、右
側の排気管１では、半分は右側の出口３に向い、
残り半分は左側の出口３に向う。左側の排気管１
でも、同様にして左右に分れる。こうして、左右
の排気管１の排気ガスが、排気集合体２の中で撹
拌されるので、一つの排気管１に失火した生ガス
が流れても、集中的に一方の触媒体４に流れるこ
とが防げ、異状反応を防げて、熱による破損を防
ぐことができ、触媒体の耐久性を高めることがで
きる。
The pressurized exhaust gas flowing through each exhaust pipe 1 enters a wide portion of the exhaust assembly 2 and flows rearward while being diffused. Then, half of the flow directly passes through the part without the distribution plate 6 and flows to the rear, and half of the flow changes its flow when it hits the distribution plate 6. In other words, in the exhaust pipe 1 on the right side, half flows toward the outlet 3 on the right side. ,
The other half go to Exit 3 on the left. left exhaust pipe 1
However, it can be divided into left and right in the same way. In this way, the exhaust gas from the left and right exhaust pipes 1 is stirred in the exhaust assembly 2, so even if misfired raw gas flows into one exhaust pipe 1, it will not flow intensively to one catalyst body 4. This can prevent abnormal reactions, prevent damage due to heat, and increase the durability of the catalyst.
以上説明したように、この考案は、前端左右に
排気管を連結し、後端左右の出口に触媒体を収容
してマフラを連結する排気集合体を設け、該排気
集合体内左右に、上下に分けて分配板を中央側を
後寄りに傾けて配置したので、左右の排気管から
排気集合体内に流れる排気ガスを分配板で左右に
分けてよく撹拌することができる。これによつ
て、失火した場合に生ガスが一方の触媒体に集中
して流れることを防ぐことができ、異状高温にな
るのを防いで触媒体の熱破損を防止し、耐久性を
高めることができる。
As explained above, this invention provides an exhaust assembly that connects exhaust pipes on the left and right sides of the front end, houses catalyst bodies at the left and right exits of the rear end, and connects the muffler. Since the distribution plate is arranged with the center side tilted toward the rear, the exhaust gas flowing into the exhaust assembly from the left and right exhaust pipes can be divided into left and right sides by the distribution plate and stirred well. This prevents raw gas from flowing concentratedly to one catalyst body in the event of a misfire, prevents abnormally high temperatures, prevents thermal damage to the catalyst body, and increases durability. Can be done.
図は本考案の一実施例を示し、第１図は斜視
図、第２図は縦断平面図、第３図は第２図Ａ−Ａ
矢視横断面図である。
１……排気管、２……排気集合体、３……出
口、４……触媒体、５……マフラ、６……分配
板。
The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a vertical sectional plan view, and Fig. 3 is Fig. 2 A-A.
It is an arrow cross-sectional view. 1... Exhaust pipe, 2... Exhaust assembly, 3... Outlet, 4... Catalyst body, 5... Muffler, 6... Distribution plate.
Claims (1)
触媒体を収容してマフラを連結する排気集合体を
設け、該排気集合体内左右に、上下に分けて分配
板を中央側を後寄りに傾けて配置したことを特徴
とするエンジンの排気ガス浄化装置。 An exhaust assembly is provided in which exhaust pipes are connected to the left and right sides of the front end, catalyst bodies are housed at the left and right exits of the rear end, and a muffler is connected to the exhaust assembly. An exhaust gas purification device for an engine, characterized in that it is arranged at an angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984114107U JPS6129012U (en) | 1984-07-26 | 1984-07-26 | Engine exhaust gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984114107U JPS6129012U (en) | 1984-07-26 | 1984-07-26 | Engine exhaust gas purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6129012U JPS6129012U (en) | 1986-02-21 |
| JPH0221542Y2 true JPH0221542Y2 (en) | 1990-06-11 |
Family
ID=30673134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984114107U Granted JPS6129012U (en) | 1984-07-26 | 1984-07-26 | Engine exhaust gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129012U (en) |
-
1984
- 1984-07-26 JP JP1984114107U patent/JPS6129012U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6129012U (en) | 1986-02-21 |
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