JPS6124649Y2 - - Google Patents
Info
- Publication number
- JPS6124649Y2 JPS6124649Y2 JP19528781U JP19528781U JPS6124649Y2 JP S6124649 Y2 JPS6124649 Y2 JP S6124649Y2 JP 19528781 U JP19528781 U JP 19528781U JP 19528781 U JP19528781 U JP 19528781U JP S6124649 Y2 JPS6124649 Y2 JP S6124649Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust pipe
- guide member
- engine
- outer periphery
- cylindrical body
- 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 10
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Joints With Sleeves (AREA)
Description
【考案の詳細な説明】
本考案は、内燃機関用排気管の機関への取付支
持構造の改良に関する。Detailed Description of the Invention The present invention relates to an improvement in a mounting support structure for an exhaust pipe for an internal combustion engine to the engine.
この種内燃機関用排気管の機関シリンダブロツ
クへの取付支持は、従来第３図、或は第４図に示
す如き方法にて成されていた。 Conventionally, the exhaust pipe for an internal combustion engine of this type has been attached and supported to the engine cylinder block by a method as shown in FIG. 3 or 4.
即ち、第３図に示す方法は、排気管１０７をこ
れの管端近傍外周に固着したフランジ１０７ａを
介してシリンダブロツク１０２の端部に直接ボル
ト結合するものである。斯る方法にては排気管１
０７がシリンダブロツク１０２に直結されるた
め、排気管１０７の振動はシリンダブロツク１０
２に直接伝わり、例えば２サイクルエンジンの様
に大口径の排気ポート１０４を設ることにより剛
性の低下したシリンダブロツク１０２がこの振動
によつて歪む等の不具合が発生していた。 That is, in the method shown in FIG. 3, the exhaust pipe 107 is directly bolted to the end of the cylinder block 102 via a flange 107a fixed to the outer periphery near the end of the exhaust pipe. In this method, the exhaust pipe 1
07 is directly connected to the cylinder block 102, the vibration of the exhaust pipe 107 is transmitted to the cylinder block 10.
For example, when a two-cycle engine has a large-diameter exhaust port 104, the cylinder block 102, whose rigidity has been reduced, is distorted by this vibration.
一方、第４図に示す方法は、排気管２０７をシ
リンダブロツク２０２に弾性支持せしめるもので
あり、シリンダブロツク２０２に取付ガイド部材
２０５を結着し、該ガイド部材２０５外周にシー
ル部材２０８，２０９を介して排気管２０７の端
部を嵌合し、該排気管２０７を取付スプリング２
１７にて前記ガイド部材２０５に支持せしめてい
る。しかしながら、斯る方法にては排気管２０７
の振動のシリンダブロツク２０２への伝播は抑制
されるが、排気ポート２０４から排出される高圧
の排気ガスの一部が前記シール部材２０８，２０
９を通過して排気管２０７外へ漏出し、シール性
の点で多少なりとも問題があつた。 On the other hand, in the method shown in FIG. 4, the exhaust pipe 207 is elastically supported by the cylinder block 202, and a mounting guide member 205 is tied to the cylinder block 202, and seal members 208 and 209 are attached to the outer periphery of the guide member 205. Fit the end of the exhaust pipe 207 through the mounting spring 2.
17, it is supported by the guide member 205. However, in such a method, the exhaust pipe 207
Although the propagation of vibrations to the cylinder block 202 is suppressed, a portion of the high pressure exhaust gas discharged from the exhaust port 204 is absorbed by the seal members 208, 20.
9 and leaked out of the exhaust pipe 207, causing some problems in terms of sealing performance.
本考案者は斯る内燃機関用排気管の機関への取
付支持に関しての上記問題点に鑑み、これを有
効、且つ合理的に解決すべく本考案を成したもの
である。 The inventor of the present invention has devised the present invention in order to effectively and rationally solve the above-mentioned problems regarding the attachment and support of an exhaust pipe for an internal combustion engine to the engine.
本考案の目的とする処は、シリンダブロツク側
に固着された取付ガイド部材と排気管外周に設け
た弾性筒体とで排気管を弾性フローテイング支持
するとともに、前記筒体内周と排気管外周間に断
熱パツキンで区画される密閉空間を形成すること
により、排気管の断熱、振動吸収、排気ガスのシ
ール効果及びエンジン音の遮音効果を有効に図り
得るようにした内燃機関用排気管の取付支持構造
を提供するにある。 The object of the present invention is to support the exhaust pipe in an elastic floating manner using a mounting guide member fixed to the cylinder block side and an elastic cylindrical body provided on the outer periphery of the exhaust pipe. A mounting support for an exhaust pipe for an internal combustion engine that effectively achieves the heat insulation, vibration absorption, exhaust gas sealing effect, and engine sound insulation effect of the exhaust pipe by forming a sealed space partitioned by heat insulating gaskets. It is there to provide structure.
以下に本考案の好適一実施例を添付図面に基づ
いて詳述する。 A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
第１図は自動二輪車用内燃機関の一部破断側面
図、第２図は第１図Ａ部の拡大詳細である。 FIG. 1 is a partially cutaway side view of an internal combustion engine for a motorcycle, and FIG. 2 is an enlarged detail of section A in FIG.
第１図中１は機関であり、この機関１のシリン
ダブロツク２には機関燃焼室３に連通する排気ポ
ート４が開口しており、この開口部には取付ガイ
ド部材５がボルト６…にて結着されている（第２
図参照）。この取付ガイド部材５は略円筒状に成
形され、これの円周面には第２図に示す如く適当
ピツチにて周方向減圧溝５ａが複数列設けられて
おり、又これの外周側にはフランジ５ｂが一体に
形成されている。 Reference numeral 1 in FIG. 1 is an engine, and an exhaust port 4 that communicates with the engine combustion chamber 3 is opened in the cylinder block 2 of this engine 1, and a mounting guide member 5 is attached to this opening with bolts 6. tied together (second
(see figure). The mounting guide member 5 is formed into a substantially cylindrical shape, and a plurality of rows of circumferential pressure reducing grooves 5a are provided at appropriate pitches on the circumferential surface of the member, as shown in FIG. A flange 5b is integrally formed.
一方、７は排気管であり、これは下方へ向けて
湾曲され、その先は後方（第１図中右方）へ延出
している。 On the other hand, 7 is an exhaust pipe, which is curved downward and its tip extends rearward (to the right in FIG. 1).
そしてこの排気管７のシリンダブロツク２への
取付支持は次の如く成されている。即ち、前記取
付ガイド部材５の内部には排気管７の端部がシリ
ンダブロツク２との間に隙間S1を設けて臨み、こ
の排気管７とガイド部材５間には弾性を有するシ
ールリング８，９が介設され、両者５，７間のシ
ールリング８，９で挾まれる空間S2は減圧室を構
成している。 The exhaust pipe 7 is attached and supported to the cylinder block 2 in the following manner. That is, the end of the exhaust pipe 7 faces the inside of the mounting guide member 5 with a gap S1 provided between it and the cylinder block 2, and an elastic seal ring 8 is provided between the exhaust pipe 7 and the guide member 5. , 9 are interposed therebetween, and a space S 2 sandwiched between seal rings 8 and 9 between both 5 and 7 constitutes a decompression chamber.
又排気管７の端面から一定距離隔つた位置の外
周にはリング状に成形された断熱ガスケツトパツ
キン１０が位置決めリング１１にて位置決めされ
て設けられており、更にこのパツキン１０の外周
は同じくリング状のカラー部材１２で被われ、こ
れらパツキン１０及びカラー部材１２は図示の如
くバンド部材１３にて排気管７側に強固に共締め
されている。 Further, a ring-shaped heat insulating gasket packing 10 is provided on the outer periphery of the exhaust pipe 7 at a position a certain distance away from the end surface thereof, and is positioned with a positioning ring 11. The gasket 10 and the collar member 12 are tightly fastened to the exhaust pipe 7 side by a band member 13 as shown in the figure.
上記カラー部材１２は図示の如くその一方が前
記ガイド部材５側へ延出し、この延出端にはリン
グ状に係合凸部１２ａが形成されている。そして
このカラー部材１２と前記ガイド部材５間には図
示の如く耐熱性の高い弾性体から成る筒体１４を
架設、嵌合している。この筒体１４の前記カラー
部材１２側内周部はカラー部材１２と密着係合
し、一方これ１４のガイド部材５側内周部はパツ
キン１５を介してガイド部材５に嵌合している。
そして筒体１４はこれの外周に巻回されたバンド
部材１６，１６にて強固に緊締されている。これ
により、排気管７外周とカラー部材１２及び筒体
１４の内周側間にパツキン１０，１５及びシール
リング９にて区画される密閉空間S3が形成され
る。 As shown in the figure, one end of the collar member 12 extends toward the guide member 5, and a ring-shaped engaging convex portion 12a is formed at this extending end. As shown in the figure, a cylindrical body 14 made of a highly heat-resistant elastic body is installed and fitted between the collar member 12 and the guide member 5. The inner circumferential portion of this cylinder 14 on the side of the collar member 12 is tightly engaged with the collar member 12, while the inner circumferential portion of this cylindrical body 14 on the side of the guide member 5 is fitted into the guide member 5 via a packing 15.
The cylindrical body 14 is firmly tightened by band members 16, 16 wound around the outer periphery of the cylindrical body 14. As a result, a sealed space S 3 is formed between the outer periphery of the exhaust pipe 7 and the inner periphery of the collar member 12 and the cylinder body 14, which is partitioned by the packings 10, 15 and the seal ring 9.
斯くして排気管７は筒体１４を介してシリンダ
ブロツク２にフローテイング弾性支持される。 In this way, the exhaust pipe 7 is supported floatingly and elastically by the cylinder block 2 via the cylindrical body 14.
而してこのようにして取付支持された排気管７
を装備して成る自動二輪車においては、機関１か
らの振動はガイド部材５を通つて筒体１４に伝播
するが、この筒体１４は弾性体であるためこれに
伝播する振動は有効に吸収され、従つて排気管７
には機関振動が伝わらず、排気管７は振動による
影響を受けることがない。 The exhaust pipe 7 mounted and supported in this way
In the motorcycle equipped with the engine 1, vibrations from the engine 1 are propagated to the cylinder 14 through the guide member 5, but since the cylinder 14 is an elastic body, the vibrations propagated thereto are effectively absorbed. , therefore the exhaust pipe 7
Since engine vibrations are not transmitted to the exhaust pipe 7, the exhaust pipe 7 is not affected by the vibrations.
逆に排気管７からの振動はパツキン１０、カラ
ー部材１２を介して筒体１４に伝播されるが、こ
の外部振動も前記同様筒体１４にて有効に吸収さ
れ、機関１に達して機関１が悪影響を被ることが
ない。 Conversely, vibrations from the exhaust pipe 7 are propagated to the cylinder body 14 via the gasket 10 and the collar member 12, but this external vibration is also effectively absorbed by the cylinder body 14, as described above, and reaches the engine 1. will not be adversely affected.
又機関１からの熱はガイド部材５を通り筒体１
４に達するが、筒体１４の熱伝導率は低く断熱性
を有するため熱の一部の他への伝導はここで遮断
される。この筒体１４にて遮断され得なかつた熱
はカラー部材１２を経て排気管７に達しようとす
るが、これは断熱ガスケツトパツキン１０の断熱
効果により完全に防止される。 Also, the heat from the engine 1 passes through the guide member 5 to the cylinder 1.
4, but since the thermal conductivity of the cylindrical body 14 is low and it has heat insulating properties, part of the heat conduction to other parts is blocked here. The heat that cannot be shut off by the cylinder 14 tends to reach the exhaust pipe 7 via the collar member 12, but this is completely prevented by the heat insulating effect of the heat insulating gasket packing 10.
このように機関１からの熱は筒体１４及びパツ
キン１０の断熱効果によつて有効に遮断され、従
つて排気管７は機関１からの熱による悪影響を受
けることがなく、又逆に機関１は排気管７からの
排気熱による悪影響を受けることがない。 In this way, the heat from the engine 1 is effectively blocked by the heat insulating effect of the cylinder 14 and the packing 10, and therefore the exhaust pipe 7 is not adversely affected by the heat from the engine 1. is not adversely affected by exhaust heat from the exhaust pipe 7.
更に機関１から排出される高圧の排気ガスの一
部は隙間S1を通つて排気管７外に漏出しようとす
るが、これはシールリング８のシール効果で防止
される。しかしながら、この排気ガスは高圧のた
め、更にその一部はシールリング８を通過して漏
れ、減圧室S2内に導入されるが、この高圧排気ガ
スはこの室S2に設けた減圧溝５ａ…によつて減圧
され、もう一方のシールリング９の通過が著しく
制限される。更に尚シールリング９から漏出する
排気ガスは密閉室S3内に導入され、ここで完全に
その管外への漏洩を阻止される。 Further, a portion of the high-pressure exhaust gas discharged from the engine 1 tends to leak out of the exhaust pipe 7 through the gap S 1 , but this is prevented by the sealing effect of the seal ring 8 . However, due to the high pressure of this exhaust gas, some of it leaks through the seal ring 8 and is introduced into the decompression chamber S2 , but this high-pressure exhaust gas flows through the decompression groove 5a provided in this chamber S2 . The pressure is reduced by..., and the passage of the other seal ring 9 is significantly restricted. Furthermore, the exhaust gas leaking from the seal ring 9 is introduced into the sealed chamber S3 , where it is completely prevented from leaking outside the tube.
斯くして排気管７は完全に気密に取付支持され
る。 In this way, the exhaust pipe 7 is completely airtightly mounted and supported.
又機関燃焼室３内で発生する爆発音は非常に高
圧のため、排気ポート４を出て排気管７の入口部
に達してもこれは排気管７を透過する。しかし、
この排気管７の入口部を外側から被うカラー部材
１２、筒体１４等で有効にその透過を阻止される
ため、爆発音は有効に消音され、極めて静粛な機
関作動が保証される。 Furthermore, since the explosion sound generated within the engine combustion chamber 3 is at a very high pressure, even if it leaves the exhaust port 4 and reaches the inlet of the exhaust pipe 7, it will pass through the exhaust pipe 7. but,
The collar member 12, cylinder body 14, etc. that cover the entrance of the exhaust pipe 7 from the outside effectively prevent the explosion from passing through, thereby effectively muffling the explosion sound and ensuring extremely quiet engine operation.
尚以上は特に自動二輪車用排気管の取付支持構
造について説明したが、本考案はその他任意の内
燃機関用排気管の取付に適用し得るものである。 Although the above explanation has been made particularly regarding the mounting support structure for an exhaust pipe for a motorcycle, the present invention can be applied to the mounting of an exhaust pipe for any other internal combustion engine.
以上の説明で明らかな如く本考案によれば、シ
リンダブロツク側に固着された取付ガイド部材と
排気管外周に設けた弾性筒体とで排気管を弾性フ
ローテイング支持するとともに、前記筒体内周と
排気管外周間に断熱パツキンで区画される密閉空
間を形成したため、排気管の断熱、吸振、排気ガ
スのシール効果及びエンジン音の遮音効果を有効
に図ることができる。 As is clear from the above description, according to the present invention, the exhaust pipe is elastically floating supported by the mounting guide member fixed to the cylinder block side and the elastic cylinder provided on the outer periphery of the exhaust pipe, and the inner periphery of the cylinder Since a sealed space partitioned by a heat insulating packing is formed between the outer peripheries of the exhaust pipe, it is possible to effectively insulate the exhaust pipe, absorb vibrations, seal the exhaust gas, and insulate engine noise.
第１図は自動二輪車用内燃機関の一部破断側面
図、第２図は第１図Ａ部の拡大詳細図、第３図及
び第４図は従来の排気管取付方法を示す排気管取
付部の側断面図である。
尚図面中１は機関、２はシリンダブロツク、４
は排気ポート、５は取付ガイド部材、７は排気
管、８，９はシールリング、１０，１５は断熱ガ
スケツトパツキン、１２はカラー部材、１３，１
６はバンド部材、１４は筒体である。
Fig. 1 is a partially cutaway side view of an internal combustion engine for a motorcycle, Fig. 2 is an enlarged detailed view of section A in Fig. 1, and Figs. 3 and 4 are exhaust pipe attachment parts showing the conventional exhaust pipe attachment method. FIG. In the drawing, 1 is the engine, 2 is the cylinder block, and 4 is the engine.
is an exhaust port, 5 is a mounting guide member, 7 is an exhaust pipe, 8, 9 are seal rings, 10, 15 are heat insulating gasket packings, 12 is a collar member, 13, 1
6 is a band member, and 14 is a cylinder.
Claims (1)
の取付ガイド部材をシリンダブロツクの排気ポー
ト部に固着し、該取付ガイド部材内部に排気管の
一端部を臨ませるとともに、同ガイド部材外周に
シール部材を介して弾性体から成る筒体を嵌合
し、該筒体の反ガイド部材側内周と排気管外周間
にシール部材を介設して密着せしめ、前記筒体外
周をバンド部材にて緊締して成る内燃機関用排気
管の取付支持構造。 A substantially cylindrical mounting guide member having multiple rows of pressure reducing grooves on the inner circumference is fixed to the exhaust port portion of the cylinder block, one end of the exhaust pipe is exposed inside the mounting guide member, and the guide A cylindrical body made of an elastic body is fitted to the outer periphery of the member via a sealing member, and a sealing member is interposed between the inner periphery of the cylindrical body on the side opposite to the guide member and the outer periphery of the exhaust pipe to bring them into close contact, and the outer periphery of the cylindrical body is A mounting support structure for an exhaust pipe for an internal combustion engine, which is tightened with a band member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19528781U JPS5898416U (en) | 1981-12-26 | 1981-12-26 | Mounting support structure for exhaust pipes for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19528781U JPS5898416U (en) | 1981-12-26 | 1981-12-26 | Mounting support structure for exhaust pipes for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5898416U JPS5898416U (en) | 1983-07-04 |
| JPS6124649Y2 true JPS6124649Y2 (en) | 1986-07-24 |
Family
ID=30108568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19528781U Granted JPS5898416U (en) | 1981-12-26 | 1981-12-26 | Mounting support structure for exhaust pipes for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5898416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014672A (en) * | 2015-03-30 | 2016-10-12 | 本田技研工业株式会社 | Exhaust passage structure of internal combustion engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4204306B2 (en) * | 2002-11-18 | 2009-01-07 | 本田技研工業株式会社 | Exhaust gas recirculation device for internal combustion engine |
| JP5075550B2 (en) * | 2007-09-25 | 2012-11-21 | 株式会社サンリツ | Watertight joint |
-
1981
- 1981-12-26 JP JP19528781U patent/JPS5898416U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014672A (en) * | 2015-03-30 | 2016-10-12 | 本田技研工业株式会社 | Exhaust passage structure of internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5898416U (en) | 1983-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4083184A (en) | System to supply air into the exhaust conduit of an internal combustion engine | |
| US5232229A (en) | Metal gasket with low heat transmission | |
| US6604358B2 (en) | Exhaust manifold | |
| JPS6124649Y2 (en) | ||
| US8485154B2 (en) | Intake manifold flange | |
| US4836160A (en) | Internal combustion engine provided with a sound-insulating enclosure | |
| JPS6223517A (en) | Connecting device for exhaust pipe of engine | |
| JPS636416Y2 (en) | ||
| JPH01177405A (en) | Muffler for motor bicycle or the like | |
| JPS6050264A (en) | Intake path in internal-combustion engine | |
| JPH0217140Y2 (en) | ||
| CA2380961A1 (en) | Exhaust manifold gasket with integral heat sleeve | |
| JPH0623745Y2 (en) | Ignition device mounting structure for internal combustion engine | |
| JP2962438B2 (en) | Exhaust manifold | |
| JPS5833250Y2 (en) | Exhaust port liner sealing device | |
| JPS5932783Y2 (en) | Engine noise prevention device | |
| JPH0139894Y2 (en) | ||
| JPH0477834B2 (en) | ||
| JP2007309269A (en) | Fuel injection device for engine | |
| JPH0771243A (en) | Exhaust pipe for internal combustion engine | |
| JP2000027642A (en) | Exhaust manifold for multi-cylinder internal combustion engine | |
| JPH0117638Y2 (en) | ||
| JPH0543221Y2 (en) | ||
| KR0124295Y1 (en) | Compressor | |
| CA1071536A (en) | Exhaust reaction chamber system of engine construction for holding adiabatic materials in vehicle's exhaust system |