JPS636418Y2 - - Google Patents
Info
- Publication number
- JPS636418Y2 JPS636418Y2 JP3053982U JP3053982U JPS636418Y2 JP S636418 Y2 JPS636418 Y2 JP S636418Y2 JP 3053982 U JP3053982 U JP 3053982U JP 3053982 U JP3053982 U JP 3053982U JP S636418 Y2 JPS636418 Y2 JP S636418Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- internal structure
- combustion engine
- internal combustion
- heat resistance
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000003584 silencer Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000003562 lightweight material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】 本考案は内燃機関の消音器に関する。[Detailed explanation of the idea] The present invention relates to a muffler for an internal combustion engine.
内燃機関においては騒音防止上消音器は必要不
可欠であり、この消音器は高温の排気ガスに晒さ
れるために一般に耐熱強度の高い鉄板等の部材で
構成されており可成りの重量を有している。一
方、近年車輛の軽量化を図るために合成樹脂やア
ルミニウム等の軽量部材が可能な限り使用されつ
つあり、特に自動二輪車においては軽量化が著し
く進められており、これに伴ない消音器の軽量化
が望まれている。 Silencers are essential for noise prevention in internal combustion engines, and because they are exposed to high-temperature exhaust gas, they are generally made of materials such as steel plates with high heat resistance and are quite heavy. There is. On the other hand, in recent years, in order to reduce the weight of vehicles, lightweight materials such as synthetic resin and aluminum are being used as much as possible.In particular, weight reduction in motorcycles is progressing significantly, and as a result, the weight of mufflers has become lighter. It is hoped that this will become a reality.
しかしながら、アルミニウム部材を消音器の外
筒（外板）に使用して軽量化を図る場合、アルミ
ニウムと鉄とを接触させて使用するとアルミニウ
ムが電触腐蝕を起す、アルミニウムは耐熱強度が
非常に低く熱間（200℃以上）で使用することが
出来ない、アルミニウムは溶接すると溶接部分の
程度が著しく低下する等の困難な問題があり、消
音器の軽量化が阻まれている大きな要因となつて
いる。 However, when using aluminum parts for the outer cylinder (outer plate) of a silencer to reduce weight, if aluminum and steel are used in contact with each other, aluminum will cause galvanic corrosion, and aluminum has very low heat resistance strength. There are difficult problems such as it cannot be used in hot conditions (above 200℃) and the quality of the welded part deteriorates significantly when aluminum is welded, which is a major factor preventing the weight reduction of silencers. There is.
本考案は上述の点に鑑みてなされたもので、ア
ルミニウム等の耐熱強度の低い軽量部材を使用し
て消音器の軽量化を図ることを目的とし、この目
的を達成するために本考案においては、外筒と、
該外筒内に収納され且つ内燃機関の排気管に接続
され耐熱強度の高い部材で形成された内部構造物
とを備える内燃機関の消音器において、前記外筒
の少なくとも一部を耐熱強度の低い軽量部材で形
成すると共に、当該外筒と前記内部構造物との接
続部の一方に断面略コ字状の溝を形成し、当該溝
内にシール部材及び断熱部材を介して前記接続部
の他方の端部を嵌合して前記外筒と前記内部構造
物とを固定するようにした内燃機関の消音器を提
供するものである。 The present invention was created in view of the above points, and the purpose of the present invention is to reduce the weight of a silencer by using lightweight materials with low heat resistance and strength, such as aluminum. , an outer cylinder;
In the muffler for an internal combustion engine, the internal structure is housed in the outer cylinder and is connected to an exhaust pipe of the internal combustion engine, and is formed of a member with high heat resistance strength, in which at least a part of the outer cylinder is made of a material with low heat resistance strength. In addition to forming a lightweight member, a groove having a substantially U-shaped cross section is formed in one of the connecting portions between the outer cylinder and the internal structure, and the other connecting portion is formed with a sealing member and a heat insulating member in the groove. The present invention provides a muffler for an internal combustion engine, in which the outer cylinder and the internal structure are fixed by fitting the ends thereof.
以下本考案の一実施例を添附図面に基づいて詳
述する。 An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
第１図において、消音器１は外筒２とこの外筒
２内に収納された内部構造物３とにより構成され
ており、内部構造物３を形成する２つの筒体４，
５の一方の開口端は夫々仕切板６を介して軸方向
に整合して配設され当該仕切板６にプラグ溶接等
により接合固着され、他方の開口端は夫々端板
７，８にプラグ溶接等で接合固着されており、２
つの室９，１０が画成されている。これらの２つ
の筒体４，５の周面には夫々小孔４ａ，５ａが多
数穿設されており、２つの室９と１０とは仕切板
６に穿設された孔６ａに嵌挿されたインナパイプ
１１により連通されている。これらの筒体４，
５、仕切板６及び端板７，８は耐熱強度の高い部
材例えば鉄板で形成されている。 In FIG. 1, a muffler 1 is composed of an outer cylinder 2 and an internal structure 3 housed in the outer cylinder 2. Two cylinders 4, which form the internal structure 3,
The opening end of 5 is consistent in the axial direction via partition plate 6, and the partition plate 6 is joined by plug welding, etc. etc., and the 2
Two chambers 9 and 10 are defined. A large number of small holes 4a and 5a are bored in the circumferential surfaces of these two cylinders 4 and 5, respectively, and the two chambers 9 and 10 are fitted into holes 6a made in the partition plate 6. They are communicated by an inner pipe 11. These cylinders 4,
5. The partition plate 6 and the end plates 7 and 8 are made of a material having high heat resistance and strength, such as an iron plate.
仕切板６、端板７，８の周縁部６ｂ，７ｂ，８
ｂは夫々一方側にフランジ状に折曲形成されてい
る。筒体１２，１３，１４は仕切板６、端板７，
８のフランジ６ｂ，７ｂ，８ｂと筒体４，５との
間に同心状に配設され、一方の周縁部は夫々仕切
板６端板７，８にスポツト溶接等で接合固着され
ており、これらのフランジ６ｂ〜８ｂと筒体１２
〜１４の周面との間には断面略コ字状の所定幅の
環状溝１５〜１７が形成されている。仕切板６の
外周部にはフランジ６ｂと反対側に２つの筒体１
８，１９が同心状に配設固着されており、これら
の２つの筒体１８，１９の間に前記環状溝１５〜
１７と同様の環状溝２０が形成されている。これ
らの環状溝１５と１６，１７と２０とは夫々対向
して形成されている。また、２つの筒体１８，１
９は夫々耐熱強度の高い鉄板で形成されている。
尚、筒体１８は以後フランジ１８と称する。 Partition plate 6, peripheral parts 6b, 7b, 8 of end plates 7, 8
b are each bent into a flange shape on one side. The cylinders 12, 13, 14 have a partition plate 6, an end plate 7,
They are arranged concentrically between the flanges 6b, 7b, 8b of 8 and the cylinders 4, 5, and one peripheral edge is fixed to the end plates 7, 8 of the partition plate 6, respectively, by spot welding or the like. These flanges 6b to 8b and the cylinder 12
Annular grooves 15 to 17 having a predetermined width and having a substantially U-shaped cross section are formed between the circumferential surfaces of the grooves 15 to 14. On the outer periphery of the partition plate 6, there are two cylindrical bodies 1 on the opposite side from the flange 6b.
8 and 19 are arranged and fixed concentrically, and the annular grooves 15 to 19 are formed between these two cylinders 18 and 19.
An annular groove 20 similar to 17 is formed. These annular grooves 15 and 16, and 17 and 20 are formed to face each other. In addition, two cylindrical bodies 18, 1
9 are each made of an iron plate with high heat resistance strength.
Note that the cylindrical body 18 will be referred to as a flange 18 hereinafter.
外筒２の一部を構成する筒体２１と２２の両端
部は夫々対向する環状溝１５と１６，１７と２０
内に断熱及び耐腐蝕パツキン２３及びシール部材
２４を介して鉄材で形成されたフランジ６ｂ〜８
ｂ，１８及び筒体１２〜１４，１９と接触しない
ように、且つ気密性を有するように嵌合されてお
り、これらの各筒体２１，２２の端部はボルト２
５及びナツト２６により前記フランジ６ｂ〜８
ｂ，１８及び筒体１２〜１４，１９に締付固定さ
れている。これらの各筒体２１，２２はアルミニ
ウム等の耐熱強度の低い軽量部材で形成されてい
る。ボルト２５には第２図に示すように管状のシ
ール部材２７が外嵌されており、締付部分の気密
性を高めるようになつている。 Both ends of the cylindrical bodies 21 and 22 forming a part of the outer cylinder 2 are provided with annular grooves 15 and 16, 17 and 20 facing each other, respectively.
Flanges 6b to 8 formed of iron material with heat insulating and corrosion-resistant packing 23 and sealing member 24 interposed therein.
b, 18 and the cylindrical bodies 12 to 14, 19, and are fitted in an airtight manner, and the ends of each of these cylindrical bodies 21, 22 are fitted with bolts 2.
5 and nuts 26 to connect the flanges 6b to 8.
b, 18 and the cylindrical bodies 12 to 14, 19 by tightening. Each of these cylindrical bodies 21 and 22 is made of a lightweight member with low heat resistance and strength, such as aluminum. As shown in FIG. 2, a tubular sealing member 27 is fitted around the bolt 25 to improve the airtightness of the tightened portion.
内部構造物３と外部構造物２との間の略環状の
空間部分には断熱及び吸音部材３０が充填されて
おり、端板７，８に穿設された孔７ａ，８ａには
夫々機関の排気管３１、テールパイプ３２が嵌挿
されている。 A generally annular space between the internal structure 3 and the external structure 2 is filled with a heat insulating and sound absorbing member 30, and holes 7a and 8a formed in the end plates 7 and 8 are filled with engine holes, respectively. An exhaust pipe 31 and a tail pipe 32 are fitted.
かかる構成において、排気管３１から排出され
た排気ガスは内部構造物３の各室９，１０を経て
テールパイプ３２から外部に排出される間にその
温度が低下する。これに反して内部構造物３は高
温となるが、断熱吸音部材３０により筒体２１，
２２への熱伝導が阻止される。更に、各環状溝１
５〜１７，２０内に配設された断熱及び耐腐蝕ガ
スケツトパツキン２３により仕切板６、端板７，
８から筒体２１，２２への熱伝導が阻止されるた
め、これらの筒体２１，２２は余り加熱されな
い。また、排気ガスが筒体４，５の小孔４ａ，５
ａから排出され第２図の矢印で示すように断熱吸
音部材３０、断熱ガスケツトパツキン２３を通り
抜けても、シール部材２４により阻止されて外筒
２から外部に漏れることはない。また、各筒体
４，５の小孔４ａ，５ａから放射された爆発音は
断熱吸音部材３０により吸入され、テールパイプ
３２から放射される爆発音は小さくなる。 In this configuration, the temperature of the exhaust gas discharged from the exhaust pipe 31 decreases while passing through the chambers 9 and 10 of the internal structure 3 and being discharged to the outside from the tail pipe 32. On the other hand, the internal structure 3 becomes high temperature, but the cylinder body 21 and
Heat conduction to 22 is prevented. Furthermore, each annular groove 1
The partition plate 6, the end plate 7,
Since heat conduction from 8 to the cylinders 21, 22 is prevented, these cylinders 21, 22 are not heated much. In addition, the exhaust gas flows through the small holes 4a and 5 of the cylinders 4 and
Even if the air is discharged from the outer cylinder 2 and passes through the heat insulating sound absorbing member 30 and the heat insulating gasket packing 23 as shown by the arrow in FIG. Further, the explosion sound emitted from the small holes 4a, 5a of each cylinder 4, 5 is absorbed by the heat insulating sound absorbing member 30, and the explosion sound emitted from the tail pipe 32 is reduced.
以上説明したように本考案によれば、外筒と、
該外筒内に収納され且つ内燃機関の排気管に接続
され耐熱強度の高い部材で形成された内部構造物
とを備える内燃機関の消音器において、前記外筒
の少なくとも一部を耐熱強度の低い軽量部材で形
成すると共に、当該外筒と前記内部構造物との接
続部の一方に断面略コ字状の溝を形成し、当該溝
内にシール部材及び断熱部材を介して前記接続部
の他方の端部を嵌合して前記外筒と内部構造物と
を固定するようにしたので、外筒を構成する多く
の部分にアルミニウム等の軽量部材を使用するこ
とが可能となり、消音器の軽量化を図ることがで
きると共に、外筒と内部構造物との間の接続部分
におけるシール性及び断熱性が向上する。 As explained above, according to the present invention, the outer cylinder and
In the muffler for an internal combustion engine, the internal structure is housed in the outer cylinder and is connected to an exhaust pipe of the internal combustion engine, and is formed of a member with high heat resistance strength, in which at least a part of the outer cylinder is made of a material with low heat resistance strength. In addition to forming a lightweight member, a groove having a substantially U-shaped cross section is formed in one of the connecting portions between the outer cylinder and the internal structure, and the other connecting portion is formed with a sealing member and a heat insulating member in the groove. Since the outer cylinder and the internal structure are fixed by fitting the ends of the silencer, it is possible to use lightweight materials such as aluminum for many parts of the outer cylinder, which reduces the weight of the silencer. In addition, the sealing performance and heat insulation performance at the connection portion between the outer cylinder and the internal structure are improved.
第１図は本考案に係る内燃機関の消音器の一実
施例を示す縦断面図、第２図は第１図の要部拡大
図である。
１……消音器、２……外筒、３……内部構造
物、４，５，１２，１３，１４，１８，１９，２
１，２２……筒体、１１……インナパイプ、２３
……ガスケツトパツキン、２４，２７……シール
部材、３０……断熱吸音部材、３１……排気管、
３２……テールパイプ。
FIG. 1 is a longitudinal sectional view showing an embodiment of a muffler for an internal combustion engine according to the present invention, and FIG. 2 is an enlarged view of the main part of FIG. 1. 1... Silencer, 2... Outer cylinder, 3... Internal structure, 4, 5, 12, 13, 14, 18, 19, 2
1, 22... Cylindrical body, 11... Inner pipe, 23
... Gasket packing, 24, 27 ... Seal member, 30 ... Heat insulation sound absorption member, 31 ... Exhaust pipe,
32...Tail pipe.
Claims (1)
気管に接続され耐熱強度の高い部材で形成された
内部構造物とを備える内燃機関の消音器におい
て、前記外筒の少なくとも一部を耐熱強度の低い
軽量部材で形成すると共に、当該外筒と前記内部
構造物との接続部の一方に断面略コ字状の溝を形
成し、当該溝内にシール部材及び断熱部材を介し
て前記接続部の他方の端部を嵌合して前記外筒と
前記内部構造物とを固定するようにしたことを特
徴とする内燃機関の消音器。 A muffler for an internal combustion engine comprising an outer cylinder and an internal structure housed in the outer cylinder and connected to an exhaust pipe of the internal combustion engine and formed of a member with high heat resistance strength, wherein at least a part of the outer cylinder is It is made of a lightweight member with low heat resistance strength, and a groove having a substantially U-shaped cross section is formed in one of the connection parts between the outer cylinder and the internal structure, and the groove is formed in the groove through a sealing member and a heat insulating member. A muffler for an internal combustion engine, characterized in that the other end of the connecting portion is fitted to fix the outer cylinder and the internal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3053982U JPS58134621U (en) | 1982-03-04 | 1982-03-04 | internal combustion engine silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3053982U JPS58134621U (en) | 1982-03-04 | 1982-03-04 | internal combustion engine silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58134621U JPS58134621U (en) | 1983-09-10 |
| JPS636418Y2 true JPS636418Y2 (en) | 1988-02-23 |
Family
ID=30042248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3053982U Granted JPS58134621U (en) | 1982-03-04 | 1982-03-04 | internal combustion engine silencer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58134621U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232812Y2 (en) * | 1984-10-08 | 1990-09-05 | ||
| JP5659887B2 (en) * | 2011-03-11 | 2015-01-28 | スズキ株式会社 | Silencer for internal combustion engine |
-
1982
- 1982-03-04 JP JP3053982U patent/JPS58134621U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58134621U (en) | 1983-09-10 |
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