JP2540586Y2 - Automotive muffler - Google Patents
Automotive mufflerInfo
- Publication number
- JP2540586Y2 JP2540586Y2 JP1992089561U JP8956192U JP2540586Y2 JP 2540586 Y2 JP2540586 Y2 JP 2540586Y2 JP 1992089561 U JP1992089561 U JP 1992089561U JP 8956192 U JP8956192 U JP 8956192U JP 2540586 Y2 JP2540586 Y2 JP 2540586Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- muffler
- gas passage
- hollow cylindrical
- hole
- 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
Landscapes
- Exhaust Silencers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、排気ガスを拡散させる
ことにより消音する自動車用マフラーの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a muffler for a vehicle, which silences by diffusing exhaust gas.
【０００２】[0002]
【従来の技術】従来の自動車用マフラーにおいて、排気
ガスを拡散させて消音する手段によると、マフラー内に
入った排気ガスは、体積が増大して圧力が下がり、熱
は、マフラーの外壁部を伝導し外気に放散される。そし
て、上記排気ガスは、低圧、低温となって外気に放出さ
れ、同時に消音されるものである。2. Description of the Related Art In conventional mufflers for automobiles , according to the means for dispersing and silencing exhaust gas, the exhaust gas entering the muffler increases in volume and decreases in pressure, and heat flows through the outer wall of the muffler. Conducted and released to the outside air. The exhaust gas is released to the outside air at low pressure and low temperature, and at the same time, silenced.
【０００３】 上記排気ガスを拡散させて消音するマフラ
ーの具体的な例をみてみると、排気ガスの、マフラーの
入口側開口部から出口側開口部への流れを排気ガスの流
れ方向としたとき、上記排気ガスの流れ方向に沿って円
筒形状の排気ガス通過穴が設けられていて、しかも上記
排気ガス通過穴と排気ガス通過穴の外との間を連絡する
複数の小孔が形成されたものがマフラーの外壁部内部に
配設されているものがあり、上記排気ガス通過穴が複数
設けられた部分は、セラミック等の材料を用いて一体的
に成形されている。 [0003] Looking at a specific example of a muffler for dispersing and silencing the exhaust gas, the flow of the exhaust gas from the inlet opening to the outlet opening of the muffler is defined as the flow direction of the exhaust gas. A cylindrical exhaust gas passage hole is provided along the flow direction of the exhaust gas, and a plurality of small holes communicating between the exhaust gas passage hole and the outside of the exhaust gas passage hole are formed. Some of them are provided inside the outer wall of the muffler, and the portion provided with the plurality of exhaust gas passage holes is integrally formed using a material such as ceramic.
【０００４】 上記排気ガスは、マフラーの入口側開口部
からマフラー内部に入り、上記排気ガス通過穴を通過し
てマフラーの出口側開口部からマフラー外部へ導かれ
る。上記排気ガス通過穴を通過する一部の排気ガスは、
その通過過程で排気ガス通過穴と排気ガス通過穴との外
との間を連絡する複数の小孔から排気ガス通過穴の外へ
放出される。即ち、上記排気ガスは、上記排気ガス通過
穴を通過し、通過過程でその一部が上記複数の小孔より
排気ガス通過穴外へ放出されることで、拡散され消音さ
れるものである。 [0004] The exhaust gas enters the muffler through the opening on the inlet side of the muffler, passes through the exhaust gas passage hole, and is guided to the outside of the muffler from the opening on the outlet side of the muffler. Some exhaust gas passing through the exhaust gas passage hole,
During the passage, the gas is discharged from the plurality of small holes communicating between the exhaust gas passage hole and the outside of the exhaust gas passage hole to the outside of the exhaust gas passage hole. That is, the exhaust gas passes through the exhaust gas passage hole, and a part of the exhaust gas is released from the plurality of small holes to the outside of the exhaust gas passage hole during the passage, so that the exhaust gas is diffused and silenced.
【０００５】[0005]
【考案が解決しようとする課題】上記従来の技術による
と、確かに排気ガスを消音する効果が期待できるもの
の、上記複数の排気ガス通過穴及び複数の小孔を一体成
形しようとした場合、製造工程が複雑になるとともに、
用いられる材質も限られてくる。特に、上記セラミック
等の材料を用いた場合、強固であるもののもろいところ
があり、マフラー内における温度変化による熱衝撃、い
わゆるサーマルショックで徐々に崩れてくる危険性があ
った。According to the above-mentioned prior art, although the effect of silencing exhaust gas can be expected, it is difficult to manufacture the exhaust gas through holes and small holes integrally. As the process becomes complicated,
The materials used are also limited. In particular, when the above-mentioned materials such as ceramics are used, they are strong but fragile, and there is a risk that they will gradually collapse due to a thermal shock due to a temperature change in the muffler, so-called thermal shock.
【０００６】[0006]
【課題を解決するための手段】本考案の自動車用マフラ
ーは、排気ガスの流れ方向に沿って延びる排気ガス通過
穴７を形成した中空円筒部材８の外周壁９に、排気ガス
通過穴７と排気ガス通過穴７の外との間を連絡する複数
の小孔１０を有し、中空円筒部材８を複数束ねた中空円
筒部材８群を、上記マフラー３の外壁部４内部に配設
し、中空円筒部材８群の中心部に、排気ガスの流れに沿
った貫通孔１１を設けたことを特徴とする。 Means for Solving the Problems The present invention automobile muffler, the outer peripheral wall 9 of the hollow cylindrical member 8 forming the exhaust gas passage hole 7 extending along the flow direction of the exhaust gas, the exhaust gas passage hole 7 A group of hollow cylindrical members 8 having a plurality of small holes 10 communicating with the outside of the exhaust gas passage hole 7 and bundling a plurality of hollow cylindrical members 8 is disposed inside the outer wall portion 4 of the muffler 3, Along the center of the hollow cylindrical member 8 group,
Is provided.
【０００７】[0007]
【作用】上記構成によると、マフラー３内部に入った排
気ガス１は、上記中空円筒部材８群によって複数形成さ
れた排気ガス通過穴７を通過し、マフラー３外部へ導か
れる。同時に、排気ガス１は、排気ガス通過穴７の通過
過程で上記複数の小孔１０からその一部が排気ガス通過
穴７の外に放出される。即ち、排気ガス１は、複数の排
気ガス通過穴７の各々に分割されて排気ガス通過穴７内
を通過するとともに、上記各々の排気ガス通過穴７の通
過過程で複数の小孔１０の各々から、通過している排気
ガス通過穴の外へ放出されていることにより、拡散さ
れ、消音されるものである。According to the above construction, the exhaust gas 1 entering the muffler 3 passes through the exhaust gas passage holes 7 formed by a plurality of the hollow cylindrical members 8 and is guided to the outside of the muffler 3. At the same time, a part of the exhaust gas 1 is discharged from the plurality of small holes 10 to the outside of the exhaust gas passage hole 7 in the process of passing through the exhaust gas passage hole 7. That is, the exhaust gas 1 is divided into each of the plurality of exhaust gas passage holes 7 and passes through the inside of the exhaust gas passage holes 7. Is diffused and silenced by being discharged out of the exhaust gas passage hole passing therethrough.
【０００８】[0008]
【実施例】添付図面に従い本考案の一実施例を詳述す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the accompanying drawings.
【０００９】 図１は、本考案の自動車用マフラーの斜視
図、図２は、中空円筒部材を複数束ねた状態を示した
図、図３は、上記複数束ねた中空円筒部材の断面を示し
た図である。 FIG . 1 is a perspective view of the automobile muffler of the present invention .
FIG. 2 shows a state in which a plurality of hollow cylindrical members are bundled.
FIGS. 3A and 3B show cross sections of the plurality of bundled hollow cylindrical members.
FIG.
【００１０】 上記マフラー３は、エンジンからの排気ガ
ス１が流れ込む入口側開口部５と出口側開口部６と、排
気ガス通過穴７が形成された中空円筒部材８を複数束
ね、マフラー３の外壁部４内部に固定された中空円筒部
材８群と、中空円筒部材８の外周壁９に排気ガス通過穴
７と排気ガス通過穴７の外との間を連絡する複数の小孔
１０と、上記中空円筒部材８群の中心部に排気ガスの流
れ方向に沿って設けた貫通孔１１とから構成されてい
る。 [0010] The muffler 3 has an inlet-side opening 5 and an outlet side opening 6 the exhaust gas 1 from the engine flows, discharge
A plurality of bundled hollow cylindrical members 8 having gas gas passage holes 7 formed therein
A hollow cylindrical part fixed inside the outer wall part 4 of the muffler 3
Exhaust gas passage holes in the material 8 group and the outer peripheral wall 9 of the hollow cylindrical member 8
A plurality of small holes communicating between the exhaust gas passage 7 and the outside of the exhaust gas passage hole 7
10 and the flow of exhaust gas in the center of the hollow cylindrical member 8 group.
And a through hole 11 provided along the
You.
【００１１】[0011]
上記マフラー３の排気系を流れる排気ガスExhaust gas flowing through the exhaust system of the muffler 3
１の拡散効果を向上させるために、図１に示されたとおIn order to improve the diffusion effect of No. 1 as shown in FIG.
り、上記貫通孔１１と、入口側開口部５及び出口側開口And the through hole 11, the inlet opening 5, and the outlet opening.
部６とが連通するマフラー３の外壁部４内部において、Inside the outer wall 4 of the muffler 3 communicating with the part 6,
空洞室１２がそれぞれ配設されている。Each of the cavity chambers 12 is provided.
【００１２】 上記複数の中空円筒部材を束ねたとき、上
記中空円筒部材８に形成された複数の小孔１０の向き
と、隣接した中空円筒部材８の小孔１０の向きの位置
は、相互 に関連なく配設されている。即ち、上記一つの
中空円筒部材８に形成された小孔１０は、その形成位置
及び形成数を排気ガスの種類、湿度、圧力等を考慮して
自由に設定し形成してよい。 [0012] Above pluralWhen the hollow cylindrical members ofUp
Directions of the plurality of small holes 10 formed in the hollow cylindrical member 8
And the direction of the small hole 10 of the adjacent hollow cylindrical member 8Position of
IsMutual Is located regardless of.That isOne of the above
The small hole 10 formed in the hollow cylindrical member 8
And the number of formation considering the type of exhaust gas, humidity, pressure, etc.
It may be freely set and formed.
【００１３】 エンジンからの 排気ガス１は、マフラー３
の入口側開口部５からマフラー３内部の開口部側５の空
洞室１２に流入して拡散する。さらに排気ガス１は、マ
フラー３内部に配設された複数の中空円筒部材８の排気
ガス通過穴７内を通過して、マフラー３の出口側開口部
６の空洞室１２へ達し出口側開口部６から放出される。
排気ガス１は、排気ガス通過穴７の通過過程で複数の小
孔１０から通過穴７の外へ放出される。これらの排気の
流れの過程において、湿度及び圧力が下がり、同時に消
音されるのである。 [0013] The exhaust gas 1 from the engine, muffler 3
From the inlet side opening 5 to the opening side 5 inside the muffler 3
It flows into the sinus chamber 12 and diffuses . Further, the exhaust gas 1 passes through the exhaust gas passage holes 7 of the plurality of hollow cylindrical members 8 disposed inside the muffler 3 and reaches the hollow chamber 12 of the outlet side opening 6 of the muffler 3 to reach the outlet side opening. Released from 6.
The exhaust gas 1 is released from the plurality of small holes 10 to the outside of the passage hole 7 in the process of passing through the exhaust gas passage hole 7. Of these exhausts
In the course of the flow, the humidity and pressure drop and at the same time be silenced.
【００１４】 中空円筒部材８群の中心部に、排気ガスの
流れ方向に沿った貫通孔１１が設けられている。貫通孔
１１は、排気効率を上げるために設けたものであり、マ
フラー３の空間面積、中空円筒部材８の長さ、排気ガス
通過穴７の径の大きさ、小孔の径の大きさ、数等々を考
慮して排気効率がよりよくなるよう、その径を設定し形
成するものである。 [0014] in the center of the hollow cylindrical member 8 group, a through hole 11 is provided along the flow direction of the exhaust gas. The through hole 11 is provided to increase the exhaust efficiency, and includes a space area of the muffler 3, a length of the hollow cylindrical member 8, a size of the exhaust gas passage hole 7, a size of the small hole, The diameter is set and formed so that the exhaust efficiency is improved in consideration of the number and the like.
【００１５】 複数中空円筒部材８各々の外周面若しくは
内周面又はその双方に触媒物質、具体的には、白金、パ
ラジウム、コバルト、ニッケル、クロム、鉄、銅、マン
ガン、亜鉛、鉛等を塗布して膜を形成し、触媒作用を生
じせるようにしてもよい。 A catalyst substance, specifically, platinum, palladium, cobalt, nickel, chromium, iron, copper, manganese, zinc, or the like, is provided on the outer peripheral surface and / or the inner peripheral surface of each of the plurality of hollow cylindrical members 8. A film may be formed by applying lead or the like so that a catalytic action may be caused.
【００１６】[0016]
【考案の効果】以上詳述したように、本考案は、排気ガ
ス通過穴及び複数の小孔を形成した中空円筒部材を複数
束ねた中空円筒部材群をマフラーの外壁部内部に固定配
設し、かつ中空円筒部群の中心部に上記貫通孔を設けた
ことにより、排気ガスを拡散させて消音する効果を向上
させ、また排気ガスがマフラー内を通過しやすく、排気
効率を引き上げる効果がある。As described in detail [devised effect above, the present invention is fixed disposed a hollow cylindrical member group formed by bundling a plurality of hollow cylindrical member formed with the exhaust gas passage holes and a plurality of small holes inside the outer wall portion of the muffler and hollow Ri <br/> especially good provided with the through hole in the center of the cylindrical portion group, improving the effect of silencing by diffusing the exhaust gas
In addition, the exhaust gas easily passes through the muffler, which has the effect of increasing the exhaust efficiency.
【図１】自動車用マフラーの斜視図である。FIG. 1 is a perspective view of an automobile muffler.
【図２】中空円筒部材を複数束ねた状態を示した図であ
る。FIG. 2 is a diagram showing a state in which a plurality of hollow cylindrical members are bundled.
【図３】複数束ねた中空円筒部材の断面を示した図であ
る。 FIG. 3 is a diagram showing a cross section of a plurality of bundled hollow cylindrical members .
You.
１ 排気ガス ２ 排気管 ３ マフラー ４ 外壁部 ５ マフラーの入口側開口部 ６ マフラーの出口側開口部 ７ 排気ガス通過穴 ８ 中空円筒部材 ９ 外周壁 １０ 小孔 １１ 貫通孔１２ 空洞室 DESCRIPTION OF SYMBOLS 1 Exhaust gas 2 Exhaust pipe 3 Muffler 4 Outer wall part 5 Muffler inlet side opening part 6 Muffler outlet side opening part 7 Exhaust gas passage hole 8 Hollow cylindrical member 9 Outer peripheral wall 10 Small hole 11 Through hole 12 Cavity chamber
Claims (1)
方向に沿って延びる排気ガス通過穴７及び、排気ガス通
過穴７と排気ガス通過穴７の外との間を連絡する複数の
小孔１０を有し、マフラー３内で排気ガス１を拡散させ
て消音する自動車用マフラーにおいて；上記排気ガスの
流れ方向に沿って延びる排気ガス通過穴７を形成した中
空円筒部材８の外周壁９に、排気ガス通過穴７と排気ガ
ス通過穴７の外との間を連絡する複数の小孔１０を有
し、中空円筒部材８を複数束ねた中空円筒部材８群を、
上記マフラーの外壁部４内部に配設し、上記中空円筒部
材８群の中心部に、排気ガスの流れ方向に沿った貫通孔
１１を設けたことを特徴とする自動車用マフラー。An exhaust gas passage hole extending along an exhaust gas flow direction inside an outer wall portion of a muffler, and a plurality of small holes communicating between the exhaust gas passage hole and the outside of the exhaust gas passage hole. An automobile muffler having a hole 10 and diffusing the exhaust gas 1 in the muffler 3 to muffle the sound; an outer peripheral wall 9 of a hollow cylindrical member 8 having an exhaust gas passage hole 7 extending in the flow direction of the exhaust gas A plurality of hollow cylindrical members 8 each having a plurality of small holes 10 communicating between the exhaust gas passage holes 7 and the outside of the exhaust gas passage holes 7 and bundling a plurality of hollow cylindrical members 8;
The hollow cylindrical portion is provided inside the outer wall portion 4 of the muffler.
A through hole in the center of the material group 8 along the exhaust gas flow direction
A muffler for an automobile, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992089561U JP2540586Y2 (en) | 1992-12-02 | 1992-12-02 | Automotive muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992089561U JP2540586Y2 (en) | 1992-12-02 | 1992-12-02 | Automotive muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0647614U JPH0647614U (en) | 1994-06-28 |
| JP2540586Y2 true JP2540586Y2 (en) | 1997-07-09 |
Family
ID=13974238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992089561U Expired - Lifetime JP2540586Y2 (en) | 1992-12-02 | 1992-12-02 | Automotive muffler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2540586Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55176424U (en) * | 1979-06-04 | 1980-12-18 |
-
1992
- 1992-12-02 JP JP1992089561U patent/JP2540586Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0647614U (en) | 1994-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |