JPS58170815A - Exhaust device for engine - Google Patents
Exhaust device for engineInfo
- Publication number
- JPS58170815A JPS58170815A JP5129282A JP5129282A JPS58170815A JP S58170815 A JPS58170815 A JP S58170815A JP 5129282 A JP5129282 A JP 5129282A JP 5129282 A JP5129282 A JP 5129282A JP S58170815 A JPS58170815 A JP S58170815A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- cylinder
- flowed
- muffler
- port
- 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
- F01N13/04—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 having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
Abstract
Description
【発明の詳細な説明】
この発明は、排気の背圧を低減することによって、出力
が増加できるようにしたエンジンの排気装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine exhaust system that can increase output by reducing exhaust back pressure.
←サイクルエンジンでは、ダノ（ルブ臘と称して、一つ
のシリンダーに二つの吸気弁と二つの排気弁を設けて、
吸入効率及び排気効率の向上を図ったものがある。とこ
ろが、一つのシリンダーに一つの排気弁を設けても、排
気弁に連なる排気孔は、一つに集合されて、一本の排気
管に連結されている。このため、排気管及び排気管に連
なる１７う内の背圧が高くなり、排気管及びマフラを大
型にしないと背圧のため出力損失が大きい。ところが、
オートバイのような場合は、取付は場所が限られている
ので、排気管やＹ７うを大きくできず寸法の制約を受け
る。←In a cycle engine, two intake valves and two exhaust valves are provided in one cylinder, which is called a Dano.
Some are designed to improve intake efficiency and exhaust efficiency. However, even if one exhaust valve is provided in one cylinder, the exhaust holes connected to the exhaust valve are grouped together and connected to one exhaust pipe. For this reason, the back pressure in the exhaust pipe and the 17 chamber connected to the exhaust pipe becomes high, and unless the exhaust pipe and muffler are made large, the back pressure will cause a large output loss. However,
In cases such as motorcycles, there is limited space for installation, so the exhaust pipe and Y7 cannot be enlarged, and there are dimensional restrictions.
この発明は、かかる点に鑑み改善したもので、以下図面
に示す本発明の実施例について説明する。The present invention has been improved in view of these points, and embodiments of the present invention shown in the drawings will be described below.
エンジンは、第一のシリンダーｌと第二のシリンダー−
を設けた一気筒エンジンで、各々のシリンダー７、コに
は、二つの排気弁がある。第一のシリンダー／では、こ
の二つの排気弁に連なる第一の排気孔Ｊと第二の排気孔
ダが設けられ、第二のシリンダー−には、第一の排気孔
！と第二の排気孔６が設けである。そして、第一のシリ
ンダーｌの第一の排気孔Ｊと第二のシリンダー−の第一
の排気孔ｌに、先端を二叉にした第一の排気管りを連結
して集合させる。又、第一のシリンダー／の第二の排気
孔参と第二のシリンダー−の第二の排気孔４に、先端を
二叉にした第二の排気管ｌを連結して集合させる。第一
の排気管７及び第二の排気管ｌには、各々尾端に％マフ
ラｔ、１０を連結する。The engine consists of a first cylinder and a second cylinder.
It is a one-cylinder engine with two exhaust valves for each cylinder. The first cylinder is provided with a first exhaust hole J and a second exhaust hole that are connected to these two exhaust valves, and the second cylinder is provided with a first exhaust hole J and a second exhaust hole D that are connected to these two exhaust valves. and a second exhaust hole 6 are provided. Then, a first exhaust pipe having a bifurcated tip is connected to the first exhaust hole J of the first cylinder I and the first exhaust hole L of the second cylinder to collect them. Further, a second exhaust pipe l having a bifurcated tip is connected to the second exhaust hole of the first cylinder and the second exhaust hole 4 of the second cylinder. Mufflers t and 10 are connected to the tail ends of the first exhaust pipe 7 and the second exhaust pipe 1, respectively.
作用について説明する。The effect will be explained.
第一のシリンダー７の排気ガスは、第一の排気孔３と第
二の排気孔参に分散して排気される。そして、第一の排
気孔３に流れた排気ガスは、第一の排気管りを通ってマ
フう？に流れ、第二の排気孔ダに流れた排気ガスは第二
の排気管ｔを通ってマフラ１０に流れる。こうして、第
一のシリンダーｌの排気ガスは、マフ’）ｔ、ｉｏに分
散して流れる。Exhaust gas from the first cylinder 7 is distributed and exhausted to the first exhaust hole 3 and the second exhaust hole. Then, the exhaust gas that flows into the first exhaust hole 3 passes through the first exhaust pipe. The exhaust gas that has flowed into the second exhaust hole t flows into the muffler 10 through the second exhaust pipe t. Thus, the exhaust gas of the first cylinder l flows distributedly to the muffs')t,io.
同様に、第二のシリンダー−の排気ガスは、第一の排気
孔Ｉと第二の排気孔孟に分散して排気される。そして、
第一の排気孔ｊに流れた排気ガスは、第一の排気管りを
通ってマツラブに流れ、第二の排気孔６に流れた排気ガ
スは、第二の排気管ｌを通ってマフラ／θに流れて、第
二のシリンダー−の排気ガスが、マフラ９．ＩＯに分散
して流れる。こうして、排気ガスの流れが分散し、しか
も、第一のシリンダーｌと第二のシリンダー−は、交互
に働いて、排気ガスも交互に間欠的に流れ今ので、マフ
ラ’ｌ、１０及び、第一排気管り並びに第二排気管を内
の背圧の低減が図れる。こうして、背圧が低くなるので
、排気ガスの流れがよくなって、出力の増加が果せる。Similarly, the exhaust gas from the second cylinder is distributed and exhausted to the first exhaust hole I and the second exhaust hole. and,
Exhaust gas flowing into the first exhaust hole j flows through the first exhaust pipe line to the matsurab, and exhaust gas flowing into the second exhaust hole 6 passes through the second exhaust pipe l to the muffler/muffler. θ, the exhaust gas from the second cylinder passes through the muffler 9. Flow is distributed to IO. In this way, the flow of exhaust gas is dispersed, and moreover, the first cylinder 1 and the second cylinder work alternately, and the exhaust gas also flows intermittently. The back pressure inside the first exhaust pipe and the second exhaust pipe can be reduced. In this way, the back pressure is lowered, which improves the flow of exhaust gas and increases the output.
以上説明したように、この発明は、一つのシリンダーに
二つの排気孔を設けた二気筒エンジンに於て、第一のシ
リンダーの第一の排気孔と第二のシリンダーの第一の排
気孔に先端を二叉にした第一の排気管を連結して集金さ
せ、第一のシリンダーの第二の排気孔と第二のシリンダ
ーの第二の排気孔に先端を二叉にした第二の排気管を連
結して集合させ、各々の排気管の尾端にマフうを連結す
るようにしたので、一つのシリンダーの排気ガスを、二
つの排気管及び二つの７７うに分散させて流すことがで
き、二つのシリンダーは交互に働いていて、排気ガスも
交互に間欠的に放出されるので、収容容積が増して、背
圧が低減できる。このため、エンジンの出力の増加が果
せる。しかも、二つの排気管は細いものでよく、又、マ
フラも小臘のもので、コンパクトに軽量にできる。こう
して、製造コストも低減できて安価にできる。As explained above, in a two-cylinder engine in which one cylinder has two exhaust holes, the first exhaust hole of the first cylinder and the first exhaust hole of the second cylinder are A first exhaust pipe with a forked tip is connected and collected, and a second exhaust pipe with a forked tip is connected to a second exhaust hole of the first cylinder and a second exhaust hole of the second cylinder. The pipes are connected and gathered together, and a muff is connected to the tail end of each exhaust pipe, so the exhaust gas from one cylinder can be dispersed and flowed through two exhaust pipes and two pipes. The two cylinders work alternately, and the exhaust gas is also released intermittently, increasing the storage capacity and reducing back pressure. Therefore, the output of the engine can be increased. Moreover, the two exhaust pipes can be thin, and the muffler can also be small, making it compact and lightweight. In this way, the manufacturing cost can be reduced and the cost can be reduced.
図は本発明の実施例を示す平面図である。
ハ・・第一のシリンダー、コ・・・第二のシリンダー、
３・・・第一の排気孔、亭・・・第二の排気孔、！・・
・第一の排気孔、４・・・第二の排気孔、７・・・第一
の排気管、ｔ・・・第二の排気管、９，１０・・・マフ
ラ。
出願人代理人 猪 股 清The figure is a plan view showing an embodiment of the present invention. C...first cylinder, c...second cylinder,
3...first exhaust hole, bower...second exhaust hole,!・・・
- First exhaust hole, 4... Second exhaust hole, 7... First exhaust pipe, t... Second exhaust pipe, 9, 10... Muffler. Applicant's agent Kiyoshi Inomata
Claims (1)
ンに於て、第一のシリンダーの第一の排気孔と第二のシ
リンダーの第一の排気孔に先端を二叉にした第一の排気
管を連結して集合させ、第一のシリンダーの第二の排気
孔と第二のシリンダーの第二の排気孔に先端を二叉にし
た第二の排気管を連結して集合させ、各々の排気管の尾
端にマフラを連結するようにしたことを特徴とするエン
ジンの排気装置。In a two-cylinder engine with two exhaust holes in one cylinder, the first exhaust hole has a bifurcated tip in the first exhaust hole of the first cylinder and the first exhaust hole of the second cylinder. The pipes are connected and assembled, and a second exhaust pipe with a bifurcated tip is connected and assembled to the second exhaust hole of the first cylinder and the second exhaust hole of the second cylinder, and each An engine exhaust system characterized in that a muffler is connected to the tail end of an exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5129282A JPS58170815A (en) | 1982-03-31 | 1982-03-31 | Exhaust device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5129282A JPS58170815A (en) | 1982-03-31 | 1982-03-31 | Exhaust device for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58170815A true JPS58170815A (en) | 1983-10-07 |
Family
ID=12882841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5129282A Pending JPS58170815A (en) | 1982-03-31 | 1982-03-31 | Exhaust device for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170815A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6299629A (en) * | 1985-10-25 | 1987-05-09 | Yamaha Motor Co Ltd | Exhaust device for motorcycle |
| JPS6299628A (en) * | 1985-10-25 | 1987-05-09 | Yamaha Motor Co Ltd | Exhaust device for motorcycle |
| US4714056A (en) * | 1984-08-03 | 1987-12-22 | Honda Giken Kogyo Kabushiki Kaisha | Two-cycle engine |
| US4926634A (en) * | 1986-12-04 | 1990-05-22 | Audi Ag | Method and apparatus for producing a homogeneous exhaust gas mixture in an exhaust system for an internal combustion engine having two banks of cylinders |
| US5018349A (en) * | 1989-07-31 | 1991-05-28 | Pemberton Joseph H | Exhaust efficiency increasing apparatus |
-
1982
- 1982-03-31 JP JP5129282A patent/JPS58170815A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714056A (en) * | 1984-08-03 | 1987-12-22 | Honda Giken Kogyo Kabushiki Kaisha | Two-cycle engine |
| JPS6299629A (en) * | 1985-10-25 | 1987-05-09 | Yamaha Motor Co Ltd | Exhaust device for motorcycle |
| JPS6299628A (en) * | 1985-10-25 | 1987-05-09 | Yamaha Motor Co Ltd | Exhaust device for motorcycle |
| US4926634A (en) * | 1986-12-04 | 1990-05-22 | Audi Ag | Method and apparatus for producing a homogeneous exhaust gas mixture in an exhaust system for an internal combustion engine having two banks of cylinders |
| US5018349A (en) * | 1989-07-31 | 1991-05-28 | Pemberton Joseph H | Exhaust efficiency increasing apparatus |
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