JPH0432210B2 - - Google Patents
Info
- Publication number
- JPH0432210B2 JPH0432210B2 JP62132255A JP13225587A JPH0432210B2 JP H0432210 B2 JPH0432210 B2 JP H0432210B2 JP 62132255 A JP62132255 A JP 62132255A JP 13225587 A JP13225587 A JP 13225587A JP H0432210 B2 JPH0432210 B2 JP H0432210B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- flow path
- port
- exhaust gas
- acceleration
- 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 - Lifetime
Links
- 230000001133 acceleration Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は排気ガスを吸引して排出効果を高め内
燃機関の燃焼効率を向上させるマフラーに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a muffler that sucks in exhaust gas to enhance the exhaust effect and improve the combustion efficiency of an internal combustion engine.
（従来の技術）
従来のマフラーには排出ガス温度を低下させた
り排気管を低めたりするデイフユーザを取付ける
ことが行なわれたが、これは排気効率には殆んど
影響しない。他方排気ガスの浄化等のため背圧は
増加の傾向にあるが、これを強制排気すると機関
に負坦をかけることになる問題がある。(Prior Art) Conventional mufflers have been fitted with a diffuser that lowers the exhaust gas temperature or lowers the exhaust pipe, but this has little effect on exhaust efficiency. On the other hand, back pressure tends to increase due to exhaust gas purification, etc., but if this back pressure is forcibly exhausted, there is a problem in that it puts a load on the engine.
（技術的課題）
本発明の目的は内燃機関に負担をかけずに排気
ガスを吸引することによりその排出効率を高める
ことができ、しかもシリンダ内への混合気充填効
率をも高められる排気ガス吸引式マフラーを提供
することにある。(Technical Problem) The purpose of the present invention is to improve the exhaust efficiency by suctioning exhaust gas without putting a burden on the internal combustion engine, and also to improve the efficiency of filling the air-fuel mixture into the cylinder. Our goal is to provide a type muffler.
（技術的手段）
前記目的は、排気管の後端部１に嵌合する接続
口２を一端に有し、他端に排気口３を設け、それ
らの間を排気流路５として本体４を備え、前記接
続口２より断面積の小さな加速流路６３を排気口
３に近い下流の排気流路５に設けるとともに、排
気流路５内へ高速気流を導入する導入口７を前記
加速流路６３の直後に設けたことにより達成され
る。(Technical Means) The object is to provide a main body 4 with a connecting port 2 that fits into the rear end 1 of the exhaust pipe at one end, an exhaust port 3 at the other end, and an exhaust passage 5 between them. An acceleration flow path 63 having a smaller cross-sectional area than the connection port 2 is provided in the downstream exhaust flow path 5 near the exhaust port 3, and an introduction port 7 for introducing high-speed airflow into the exhaust flow path 5 is provided in the acceleration flow path. This is achieved by providing it immediately after 63.
導入口７は加速流路６に対し、その前後を問わ
ず一応の効果は達せられるが、実験の結果加速流
路６の後方の場合が最も強力であることが確認さ
れた。これは導入口７から導入された高速気流の
障害になるものがないためと思われる。また導入
口７を最後尾に配置することにより消音に伴なう
流速の遅れや、吸気へのマイナス、吹き返し等の
問題も起らなくなる利点がある。 Although the introduction port 7 can have a certain effect regardless of whether it is placed before or after the acceleration flow path 6, it has been confirmed from experiments that the effect is most powerful when it is placed behind the acceleration flow path 6. This seems to be because there is nothing obstructing the high-speed airflow introduced from the inlet 7. Further, by arranging the inlet 7 at the rearmost position, there is an advantage that problems such as a delay in flow velocity due to noise reduction, negative air flow to the intake air, and blowback do not occur.
（実施例）
図示実施例により本発明を説明する。本体４は
概ね円筒状を有し、排気管の後端部１と密に接続
する接続口２を形成した基筒部材８、他端に排気
口３を形成した先筒部材９、及び中間部材１０を
有し、両部材が２重の内筒１１，１１′と外筒１
２，１２′により接続された構造である。(Example) The present invention will be described with reference to illustrated examples. The main body 4 has a generally cylindrical shape, and includes a base cylinder member 8 in which a connection port 2 is formed to closely connect with the rear end portion 1 of the exhaust pipe, a front cylinder member 9 in which an exhaust port 3 is formed at the other end, and an intermediate member. 10, both members are double inner cylinders 11, 11' and outer cylinder 1.
2, 12'.
従つて排気流路５は接続口２から排気口３を連
絡し、基筒部材８の内端に形成された断面積の漸
時小となる頸部１３、中間部材１０中心に配置さ
れた加速コーン１４、及び基筒部材９の頸部１５
の各部で排気ガスの流速を加速する３箇所の加速
流路６1，６2，６3が形成される。この３段の加
速流路により排気ガス流は効果的に加送される。 Therefore, the exhaust flow path 5 connects the connection port 2 to the exhaust port 3, and has a neck 13 formed at the inner end of the base cylinder member 8 whose cross-sectional area gradually decreases, and an acceleration center located at the center of the intermediate member 10. Cone 14 and neck 15 of base tube member 9
Three acceleration channels 6 1 , 6 2 , and 6 3 are formed to accelerate the flow velocity of exhaust gas at each part. The exhaust gas flow is effectively fed through these three stages of acceleration flow paths.
２重の内筒１１，１１′は多数の通孔１６を有
する消音部材であり、排気ガスの一部はそこを通
過して側路１７，１８の出口１９より出る。排気
流路５内へ高速気流を導入する導入口７は最後尾
に複数箇所設けられ、第３加速流路６3の直後で
排気ガスと混合する。２０は混合室を示す。 The double inner cylinders 11, 11' are sound damping members having a large number of through holes 16, through which part of the exhaust gas passes and exits from the outlet 19 of the side passages 17, 18. A plurality of introduction ports 7 for introducing high-speed airflow into the exhaust flow path 5 are provided at a plurality of locations at the rear end, and the airflow is mixed with the exhaust gas immediately after the third acceleration flow path 6 3 . 20 indicates a mixing chamber.
導入口７は空気導入管に連絡し、本マフラーを
装着した車輌等の移動により空気を導入する。こ
のため排気ガス温度の低下にも寄与する。図中２
１は本マフラー、２２は内燃機関であるエンジ
ン、２３は排気管を示す。 The inlet 7 is connected to the air inlet pipe, and air is introduced when a vehicle or the like equipped with this muffler moves. Therefore, it also contributes to lowering the exhaust gas temperature. 2 in the diagram
1 is a main muffler, 22 is an internal combustion engine, and 23 is an exhaust pipe.
（発明の作用）
前記の構成に於て、エンジンが始動すると排気
ガスは排気管２３の後端部１より本体４内に流
れ、消音されて、後端排気口３より排出される。
その際排気ガス流は第１、第２、第３の加速流路
６1，６2，６3を通過する間に次第に加速され、
さらに導入口７より導入される高速気流により排
気口３方向へ吸引されることになる。それ故排気
ガス流はマフラー２１に於て排出方向へ常時真空
吸引されているからマフラーに於る排気抵抗が低
減し、背圧を低下させてエンジンの負荷を軽減す
る。しかもこのように排気系の圧力が低減する結
果、シリンダー内への混合気の吸引バルブが排気
バルブと共に開く高速回転域でその気圧差により
吸気効率をも促進することができる。(Operation of the Invention) In the above configuration, when the engine is started, exhaust gas flows into the main body 4 from the rear end portion 1 of the exhaust pipe 23, is muffled, and is discharged from the rear end exhaust port 3.
At this time, the exhaust gas flow is gradually accelerated while passing through the first, second, and third acceleration channels 6 1 , 6 2 , 6 3 ,
Furthermore, the high-speed airflow introduced from the inlet 7 causes the air to be sucked in the direction of the exhaust port 3. Therefore, since the exhaust gas flow is constantly vacuumed in the exhaust direction in the muffler 21, the exhaust resistance in the muffler is reduced, the back pressure is reduced, and the load on the engine is reduced. Moreover, as a result of reducing the pressure in the exhaust system in this way, the air intake efficiency can also be promoted due to the pressure difference in the high-speed rotation range where the air-fuel mixture suction valve into the cylinder opens together with the exhaust valve.
（発明の効果）
従つて本発明によれば、内燃機関に何の負担を
かけることもなく、排気ガスを効率良く排出でき
る効果があり、のみならず積極的に排気を促進さ
せるのでエンジンの負荷を軽減し、運転効率を高
める効果が得られ、高回転域では特に混合気の充
填効率も高まるので出力の増大に寄与することに
なり、しかも簡単な構造であるから実施容易であ
り、比較的手軽に内燃機関の効率を向上できる特
徴がある。(Effects of the Invention) Therefore, according to the present invention, there is an effect that exhaust gas can be efficiently discharged without placing any burden on the internal combustion engine, and since exhaust gas is actively promoted, the load on the engine is reduced. It has the effect of reducing the noise and increasing operating efficiency, and it also increases the air-fuel mixture filling efficiency, especially in the high rotation range, which contributes to an increase in output.Moreover, the simple structure makes it easy to implement, and it is relatively It has the feature of easily improving the efficiency of internal combustion engines.
図面は本発明に係る排気ガス吸引式マフラーの
１実施例を示すもので第１図は縦断面図、第２図
は概念図である。
１……排気管の後端部、２……接続口、３……
排気口、４……本体、５……排気流路、６3……
加速流路、７……導入口。
The drawings show one embodiment of the exhaust gas suction type muffler according to the present invention, and FIG. 1 is a longitudinal sectional view, and FIG. 2 is a conceptual diagram. 1... Rear end of exhaust pipe, 2... Connection port, 3...
Exhaust port, 4...Main body, 5...Exhaust channel, 6 3 ...
Acceleration flow path, 7... introduction port.
Claims (1)
に有し、他端に排気口３を設け、それらの間を排
気流路５とした本体４を備え、前記接続口２より
断面積の小さな加速流路６３を排気口３に近い下
流の排気流路５に設けるとともに、排気流路５内
へ高速気流を導入する導入口７を前記加速流路６
３の直後に設けた排気ガス吸引式マフラー。 ２ 加速流路が多段に設けられている特許請求の
範囲第１項記載の排気ガス吸引式マフラー。 ３ 導入口７と排気口３との間に排気ガス流と高
速気流との混合室２０が設けられている特許請求
の範囲第１項又は第２項記載の排気ガス吸引式マ
フラー。[Scope of Claims] 1. A main body 4 having a connection port 2 that fits into the rear end portion 1 of the exhaust pipe at one end, an exhaust port 3 at the other end, and an exhaust flow path 5 between them. An acceleration flow path 63 having a smaller cross-sectional area than the connection port 2 is provided in the downstream exhaust flow path 5 near the exhaust port 3, and an introduction port 7 for introducing high-speed airflow into the exhaust flow path 5 is provided in the acceleration flow path 6.
Exhaust gas suction type muffler installed immediately after 3. 2. The exhaust gas suction type muffler according to claim 1, wherein the acceleration flow path is provided in multiple stages. 3. The exhaust gas suction type muffler according to claim 1 or 2, wherein a mixing chamber 20 for an exhaust gas flow and a high-speed air flow is provided between the inlet port 7 and the exhaust port 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13225587A JPS63295814A (en) | 1987-05-27 | 1987-05-27 | Exhaust gas suction type muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13225587A JPS63295814A (en) | 1987-05-27 | 1987-05-27 | Exhaust gas suction type muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63295814A JPS63295814A (en) | 1988-12-02 |
| JPH0432210B2 true JPH0432210B2 (en) | 1992-05-28 |
Family
ID=15076999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13225587A Granted JPS63295814A (en) | 1987-05-27 | 1987-05-27 | Exhaust gas suction type muffler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63295814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6122197B1 (en) * | 2016-09-07 | 2017-04-26 | 増山 征男 | Exhaust accelerating device using exhaust from heat engine and combustion equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05256140A (en) * | 1991-05-27 | 1993-10-05 | Dae-Sung Lee | Device for facilitating exhaust action of internal combustion engine |
| KR101210047B1 (en) | 2010-10-08 | 2012-12-10 | 기아자동차주식회사 | Fleece with Soot Preventing type Tail Trim |
-
1987
- 1987-05-27 JP JP13225587A patent/JPS63295814A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6122197B1 (en) * | 2016-09-07 | 2017-04-26 | 増山 征男 | Exhaust accelerating device using exhaust from heat engine and combustion equipment |
| JP2018040281A (en) * | 2016-09-07 | 2018-03-15 | 増山 征男 | Heat engine, and exhaust promotion device utilizing exhaust of burning appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63295814A (en) | 1988-12-02 |
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