JPH072971Y2 - Silencer - Google Patents

Silencer

Info

Publication number
JPH072971Y2
JPH072971Y2 JP1988011070U JP1107088U JPH072971Y2 JP H072971 Y2 JPH072971 Y2 JP H072971Y2 JP 1988011070 U JP1988011070 U JP 1988011070U JP 1107088 U JP1107088 U JP 1107088U JP H072971 Y2 JPH072971 Y2 JP H072971Y2
Authority
JP
Japan
Prior art keywords
exhaust pipe
box body
connecting member
heat
silencer
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
Application number
JP1988011070U
Other languages
Japanese (ja)
Other versions
JPH01115832U (en
Inventor
健 井上
博 舟橋
幸弘 中川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Nakagawa Sangyo Co Ltd
Original Assignee
Honda Motor Co Ltd
Nakagawa Sangyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, Nakagawa Sangyo Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP1988011070U priority Critical patent/JPH072971Y2/en
Priority to US07/302,531 priority patent/US4993513A/en
Publication of JPH01115832U publication Critical patent/JPH01115832U/ja
Application granted granted Critical
Publication of JPH072971Y2 publication Critical patent/JPH072971Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 (産業上の利用分野) この考案は排気音の低減を図るため、エキゾーストパイ
プの後端部に接続される消音器に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a silencer connected to a rear end portion of an exhaust pipe in order to reduce exhaust noise.

(従来の技術) 一般に内燃機関の排気系には膨張室を有する消音器を設
け、この膨張室に排気ガスを導入して膨張させ、排気ガ
スが保有するエネルギーを消耗させることで排気音の低
減を図っている。
(Prior Art) Generally, a muffler having an expansion chamber is provided in an exhaust system of an internal combustion engine, exhaust gas is introduced into the expansion chamber to expand the exhaust gas, and exhaust energy is exhausted to reduce exhaust noise. I am trying to

ところで従来、この消音器には例えば特開昭60−175717
号に示されるように、この膨張室を形成する箱体を外皮
部の合成樹脂層とその内側のグラスウール等からなる断
熱層とで構成し、この箱体を直接的にエキゾーストパイ
プに取り付けるようにしたものが知られている。
By the way, heretofore, in this silencer, for example, JP-A-60-175717
As shown in No. 6, the box forming this expansion chamber is composed of a synthetic resin layer of the outer skin and a heat insulating layer made of glass wool or the like inside the box, and this box is directly attached to the exhaust pipe. What you have done is known.

このような構成によれば合成樹脂からなる外皮部は断熱
材により直接排気ガスに触れることはなく、従ってその
熱から保護されるとともに断熱材は吸音性をも発揮し、
これらを金属箱等に構成したものに対して優れたものと
なる。
According to this structure, the outer skin made of synthetic resin does not come into direct contact with the exhaust gas by the heat insulating material, and therefore is protected from the heat and the heat insulating material also exhibits sound absorption,
It is excellent as compared with those configured in a metal box or the like.

(考案が解決しようとする問題点) しかしながら、かかる従来の技術において示されるよう
に、膨張室を形成する箱体を直接的にエキゾーストパイ
プに取り付けるようにすると、なるほど外皮部には排気
ガスからの熱が直接伝わることがないものの、この取付
部においてエキゾーストパイプからの熱が伝わることと
なり、この取付部において外皮部の温度が高くなるとい
う不具合を生じる。
(Problems to be solved by the invention) However, as shown in such a conventional technique, when the box forming the expansion chamber is directly attached to the exhaust pipe, the outer skin portion does not come out of the exhaust gas. Although heat is not directly transmitted, heat from the exhaust pipe is transmitted to this mounting portion, which causes a problem that the temperature of the outer skin portion becomes high at this mounting portion.

そこでこの考案は、かかる不具合を解消すべくなされた
もので、その目的とする処は、消音器を構成する箱体の
取付部において、その外皮部にエキゾーストパイプから
の熱が伝わらないようにし、もってその熱影響を極小に
押えることができる消音器を提供するにある。
Therefore, this invention has been made to solve such a problem, and the purpose thereof is to prevent heat from the exhaust pipe from being transmitted to the outer skin of the mounting portion of the box constituting the silencer. Therefore, it is to provide a silencer capable of suppressing the heat effect to a minimum.

(問題点を解決するための手段および作用) 上記問題点を解決するためこの考案は、エキゾーストパ
イプ1に箱体3を取り付けてなる消音器であって、前記
箱体3を外皮部材3bとその内側の断熱部材3aとからなる
層状部材にて形成したものにおいて、 前記取付部における前記エキゾーストパイプ1と箱体3
との間に連結部材4を介在せしめ、この連結部材4にお
ける前記エキゾーストパイプ1と前記箱体3との夫々の
接続部4d,4eの間に大気との放熱面を設けてなる。
(Means and Actions for Solving Problems) In order to solve the above problems, the present invention is a silencer in which a box body 3 is attached to an exhaust pipe 1, and the box body 3 is provided with an outer cover member 3b and its outer cover member 3b. What is formed by a layered member composed of an inner heat insulating member 3a, wherein the exhaust pipe 1 and the box body 3 in the mounting portion are
And a connecting member 4 is interposed between the exhaust pipe 1 and the box body 3 in the connecting member 4, and a heat radiation surface to the atmosphere is provided between the connecting portions 4d and 4e.

このような構成によれば、エキゾーストパイプからの熱
はエキゾーストパイプと箱体の接続部において、その連
結部材の放熱面より大気に放出され、箱体の外皮部に多
量の熱が伝達されるのを防ぐことができる。
With such a configuration, heat from the exhaust pipe is released to the atmosphere from the heat radiation surface of the connecting member at the connecting portion between the exhaust pipe and the box, and a large amount of heat is transferred to the outer skin of the box. Can be prevented.

(実施例) 以下にこの考案の実施例を添付図面に基づいて説明す
る。
(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

第1図はこの考案の第1実施例に係る消音器の断面側面
図、第2図は第1図のII−II線断面図である。
FIG. 1 is a sectional side view of a silencer according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG.

図において1はエキゾーストパイプ、2はテールパイ
プ、3はこのエキゾーストパイプ1の後端部1aとテール
パイプ2間に設けられた排気ガスの膨張室を形成する箱
体、4はこの箱体3とエキゾーストパイプ1の間、及び
箱体3とテールパイプ2の間に介設される連結部材であ
る。
In the figure, 1 is an exhaust pipe, 2 is a tail pipe, 3 is a box body that forms an exhaust gas expansion chamber provided between the rear end 1a of the exhaust pipe 1 and the tail pipe 2, and 4 is this box body 3. The connecting members are provided between the exhaust pipes 1 and between the box body 3 and the tail pipe 2.

前記箱体3は前後の両端を閉じた筒状をなし、成形吸音
材からなる上下の分割体3A,3Bをその各接合部3A−1,3B
−1で接合して構成される。各分割体3A,3Bを構成する
成形吸音材は内側が吸音性及び断熱性に優れた多孔質層
(ポーラス層)3aからなり、外側部が樹脂等からなる剛
性及び遮音性に優れた硬質層(タイト層)3bとなってい
る。
The box body 3 has a tubular shape in which both front and rear ends are closed, and upper and lower split bodies 3A and 3B made of molded sound absorbing material are connected to their respective joint portions 3A-1 and 3B.
It is configured by joining with -1. The molded sound absorbing material that constitutes each of the divided bodies 3A and 3B is made of a porous layer (porous layer) 3a having excellent sound absorbing properties and heat insulating properties on the inner side, and a hard layer having excellent rigidity and sound insulating properties made of resin on the outer part. (Tight layer) 3b.

この分割体3A,3Bの成形方法の一例を以下に述べると、
先ず、ガラス長繊維又はセラミックス繊維等の無機繊維
或いはポリエステル等の有機長繊維を適当な長さに切断
して混合し、これにローラ加工及びニードリングを施し
マット状繊維とし、このマット状繊維に水ガラス等のバ
インダーを含浸せしめた後、所定形状つまり分割体3A,3
Bを形成し得る成形面をもつ型内にマット状繊維を入れ
て加工焼成する。すると、高温の型成形面と接する部分
が硬質層(タイト層)3b、他に部分が多孔質層(ポーラ
ス層)3aとなった分割体3A,3Bが得られる。尚、硬質層3
bの厚さを厚くし、硬度を高めるには例えば、マット状
繊維の表面にエポキシ樹脂等の熱硬化性樹脂を水ガラス
とは別にバインダーとして含浸せしめて焼成するか、或
いは焼成後に熱可塑性樹脂を塗布するようにしてもよ
い。
Described below is an example of a method for forming the divided bodies 3A and 3B,
First, inorganic long fibers such as glass long fibers or ceramics fibers or organic long fibers such as polyester are cut into appropriate lengths and mixed, and this is subjected to roller processing and needling to obtain mat-like fibers. After impregnating with a binder such as water glass, the specified shape, that is, the divided body 3A, 3
The mat-shaped fibers are put into a mold having a molding surface capable of forming B and processed and baked. Then, the divided bodies 3A and 3B are obtained in which the portion in contact with the hot molding surface is the hard layer (tight layer) 3b and the other portion is the porous layer (porous layer) 3a. The hard layer 3
To increase the thickness of b and increase the hardness, for example, a thermosetting resin such as an epoxy resin may be impregnated on the surface of the mat-shaped fiber as a binder separately from water glass and then fired, or a thermoplastic resin may be used after firing. May be applied.

こうして得られる筒状の箱体3は、その前後に取付部3
c,3cが形成されている。この取付部3cは第2図に示され
るようにその断面形状が上下に長い楕円形状なる筒状を
なし、後述する連結部材4の断面形状と略合致する。
The tubular box body 3 thus obtained has a mounting portion 3 at the front and rear thereof.
c and 3c are formed. As shown in FIG. 2, the mounting portion 3c has a tubular shape having a vertically long elliptical cross section, and substantially matches the sectional shape of a connecting member 4 described later.

前記連結部材4,4は、前記箱体3の取付部3cの内周部3d
を受ける受け部4aと、この受け部4aの前後両端部におい
てエキゾーストパイプ1又はテールパイプ2に対しその
半径外方向に沿って起設され、前記箱体3の取付部3cの
両端部をその内面側から支持する止め部4b,4bと、前記
受け部4aのその箱体内端側近傍をエキゾーストパイプ1
及びテールパイプ2に取り付けるための支持部4c,4cと
からなる。
The connecting members 4, 4 are the inner peripheral portion 3d of the mounting portion 3c of the box body 3.
A receiving part 4a for receiving the receiving part 4a and both ends of the receiving part 4a in front of and behind the exhaust pipe 1 or the tail pipe 2 are provided so as to extend along a radial outward direction thereof, and both ends of the attaching part 3c of the box body 3 are provided on the inner surface thereof. The stop pipes 4b, 4b that are supported from the side and the vicinity of the end of the receiving portion 4a inside the box are located in the exhaust pipe 1.
And supporting portions 4c, 4c for attaching to the tail pipe 2.

この支持部4c,4cはエキゾーストパイプ1及びテールパ
イプ2に対して起設され、その外周端部が前記受け部4
a,4aとなり、その内周端部4d,4dがエキゾーストパイプ
1及びテールパイプ2に溶接されている。
The supporting portions 4c, 4c are erected on the exhaust pipe 1 and the tail pipe 2, and the outer peripheral ends thereof are the receiving portions 4c.
The inner peripheral end portions 4d and 4d are welded to the exhaust pipe 1 and the tail pipe 2.

そして箱体3の取付部3cの前後両端部と連結部材4の止
め部4b,4bの外周端部との間に夫々シリコンラバー等の
耐熱断熱シール5,5が介設され、防音効果を高めてい
る。
Further, heat-resistant and heat-insulating seals 5, 5 such as silicone rubber are provided between the front and rear ends of the mounting portion 3c of the box body 3 and the outer peripheral ends of the stopper portions 4b, 4b of the connecting member 4, respectively, to enhance the soundproofing effect. ing.

ここで、連結部材4,4の受け部4a,4aの断面形状は第2図
に示されるように、箱体3の取付部3c,3cの断面形状と
略一致する縦長の楕円形をなし、箱体3がこの取付部4,
4に対して周方向に回転するのを有効に防止している。
Here, as shown in FIG. 2, the cross-sectional shape of the receiving portions 4a, 4a of the connecting members 4, 4 is a vertically long elliptical shape substantially matching the cross-sectional shape of the mounting portions 3c, 3c of the box body 3, Box 3 is this mounting part 4,
It effectively prevents rotation in the circumferential direction with respect to 4.

又、かかる連結部材4,4によれば、前記支持部4cと受け
部4aがエキゾーストパイプ1,2等との間において大気に
解放される空間部S,Sを形成して熱を大気に放熱する放
熱面を構成し、高温に比較的弱い硬質層3b,3bに多量の
熱が伝達されるのを防ぐことができる。
Further, according to the connecting members 4 and 4, the supporting portion 4c and the receiving portion 4a form space portions S and S which are open to the atmosphere between the exhaust pipes 1 and 2 and the like, and radiate heat to the atmosphere. It is possible to prevent a large amount of heat from being transferred to the hard layers 3b, 3b which are relatively weak to high temperature.

第3図乃至第9図はこの考案の別実施例を示すもので、
第3図は連結部材4の支持部4cを別体で構成した第2実
施例を示している。第4図は第3実施例を示したもの
で、箱体の取り付部3cを断熱材である多孔質層3aのみで
構成し、その前端部3e及び外周部3fを囲むように連結部
材4を設け、この連結部材4の後端部4eをシール部材5
を介して硬質層3bに接続するようにしたものである。従
ってこの第3実施例では、第2実施例におけるエキゾー
ストパイプ1と連結部材4との溶接部(接続部)4dが連
結部材4と箱体3との接続部4eより箱体3の内側寄りに
あり、放熱面となる受け部4a、止め部4bがエキゾースト
パイプ1に対面しているのに対し、連結部材4とエキゾ
ーストパイプ1の接続部4dが、連結部材4と箱体3とん
接続部4eより箱体3の外側寄りにあり、且つ放熱面とな
る受け部4a、止め部4bが外部に露出している。
3 to 9 show another embodiment of the present invention,
FIG. 3 shows a second embodiment in which the support portion 4c of the connecting member 4 is formed separately. FIG. 4 shows a third embodiment, in which the mounting portion 3c of the box body is constituted only by the porous layer 3a which is a heat insulating material, and the connecting member 4 is provided so as to surround the front end portion 3e and the outer peripheral portion 3f thereof. And a rear end portion 4e of the connecting member 4 is provided with a seal member 5
It is adapted to be connected to the hard layer 3b through. Therefore, in the third embodiment, the welded portion (connection portion) 4d between the exhaust pipe 1 and the connecting member 4 in the second embodiment is located closer to the inside of the box body 3 than the connecting portion 4e between the connecting member 4 and the box body 3. While the receiving portion 4a and the stopping portion 4b, which are heat radiation surfaces, face the exhaust pipe 1, the connecting portion 4d between the connecting member 4 and the exhaust pipe 1 has the connecting member 4 and the box body 3 connecting portion. The receiving portion 4a and the stopper portion 4b, which are closer to the outside of the box body 3 than 4e and serve as a heat radiation surface, are exposed to the outside.

これら第2乃至第3実施例において箱体の硬質層3bと連
結部材4の接続部4eと、連結部材4とエキゾーストパイ
プ1の接続部4dとのエキゾーストパイプ1に対する半径
方向の離間距離l1は略15mm程度であり、又、これら接続
部4d,4e間のエキゾーストパイプ方向への離間距離l2は4
0mm程度としている。
In these second to third embodiments, the distance l 1 between the hard layer 3b of the box, the connecting portion 4e of the connecting member 4 and the connecting portion 4d of the connecting member 4 and the exhaust pipe 1 in the radial direction with respect to the exhaust pipe 1 is The distance l 2 between the connecting portions 4d and 4e in the exhaust pipe direction is about 15 mm.
It is about 0 mm.

第5図は第4実施例を示し、これは第1実施例における
連結部材の支持部4cによる連結部材4の受け部4aとエキ
ゾーストパイプ1の離間量を若干大きくとり、この支持
部4cに筒状のフィン6を設けたものである。
FIG. 5 shows a fourth embodiment, in which the distance between the receiving portion 4a of the connecting member 4 and the exhaust pipe 1 by the supporting portion 4c of the connecting member in the first embodiment is set to be slightly larger, and the supporting portion 4c has a cylindrical shape. The fins 6 are provided.

第6図、第7図は第5実施例を示し第7図は第6図のVI
I−VII線断面図である。この第5実施例では第1実施例
で示した連結部材4の受け部裏面である放熱面に等間隔
でエキゾーストパイプ1方向に突出する放射状の放熱フ
ィン7…を設けたもので、放熱面とエキゾーストパイプ
の離間量l3は略10mm、各フィン7…の突出量l4は略5mm
でL3の略半分となっている。尚、この実施例における箱
体の容積は略1、4l、エキゾーストパイプの直径は略3
8.1mmとなっている。
6 and 7 show a fifth embodiment, and FIG. 7 shows VI of FIG.
It is a sectional view taken along the line I-VII. In the fifth embodiment, the radiation surface, which is the rear surface of the receiving portion of the connecting member 4 shown in the first embodiment, is provided with radial radiation fins 7 ... Which project toward the exhaust pipe 1 at equal intervals. The distance l 3 of the exhaust pipe is about 10 mm, and the protruding amount l 4 of each fin 7 is about 5 mm.
It is almost half of L 3 . In this embodiment, the box has a volume of about 1,4 l and the exhaust pipe has a diameter of about 3 l.
It is 8.1 mm.

第8図、第9図は第6実施例を示し第9図は第8図のIX
−IX断面図である。この第6実施例では連結部材4の受
け部4aに断面形状を波状とし、その放熱面積を大きくし
て放熱効果の効率化を図ったものである。尚、この場合
は、箱体3の取付部3cの断面形状もこの受け部3cに対応
した波状とし、前述したように連結部材4に対する箱体
3の回転を有効に防止している。
8 and 9 show the sixth embodiment, and FIG. 9 is the IX of FIG.
-IX is a sectional view. In the sixth embodiment, the receiving portion 4a of the connecting member 4 has a wavy cross-section, and the heat radiation area is increased to improve the efficiency of the heat radiation effect. In this case, the mounting portion 3c of the box body 3 also has a corrugated cross-section corresponding to the receiving portion 3c to effectively prevent the rotation of the box body 3 with respect to the connecting member 4 as described above.

(考案の効果) 以上の説明より明らかなようにこの考案によれば、エキ
ゾーストパイプからなる箱体の外皮部への熱は連結部材
の放熱面より外部に放熱されることとなり、箱体の外皮
部が加熱されるのを防ぐことができ、その耐久性を向上
させることができる。
(Effect of the Invention) As is apparent from the above description, according to the present invention, the heat to the outer skin of the box body composed of the exhaust pipe is radiated to the outside from the heat dissipation surface of the connecting member, and the outer skin of the box body is radiated. It is possible to prevent the part from being heated and improve its durability.

尚、この考案の実施例によれば次のような効果を奏す
る。
According to the embodiment of the present invention, the following effects can be obtained.

(1)連結部材と箱体との間に設けられるシール部材が
加熱されるのを防ぐことができ、その耐久性も向上させ
ることができる。従って又、シール部材を従来のシール
部材に対して耐熱限度の低いもので代用できるようにな
り、低コスト化、生産性向上を図ることができる。
(1) It is possible to prevent the sealing member provided between the connecting member and the box body from being heated, and it is possible to improve the durability thereof. Therefore, a seal member having a lower heat resistance limit can be used as a substitute for the conventional seal member, and cost reduction and productivity improvement can be achieved.

(2)連結部材の受け部をエキゾーストパイプの径より
大きくすることができ、従って箱体の取付部に成形時に
その絞り量を小さくすることができ、生産性の効率化を
図ることができる。
(2) The receiving portion of the connecting member can be made larger than the diameter of the exhaust pipe, and therefore, the amount of drawing can be reduced at the time of molding the mounting portion of the box body, and the efficiency of productivity can be improved.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの考案の第1実施例に係る消音器の断面側面
図、第2図は第1図II−II線断面図、第3図はこの考案
の第2実施例を示す図、第4図はこの考案の第3実施例
を示す図、第5図はこの考案の第4実施例を示す図、第
6図はこの考案の第5実施例を示す図、第7図は第6図
のVII−VII線断面図、第8図はこの考案の第6実施例を
示す図、第9図は第8図のIX−IX線断面図である。 そして図面中、1はエキゾーストパイプ、2はテールパ
イプ、3は箱体、3aは断熱部材(多孔質層)、3bは外皮
部材(タイト層)、4は連結部材、4aは受け部、4bは止
め部、4cは支持部、4dはエキゾーストパイプと連結部材
の接続部、4eは連結部材と箱体との接続部、5はシール
部材である。
1 is a sectional side view of a silencer according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a diagram showing a second embodiment of the present invention. FIG. 4 is a view showing a third embodiment of the present invention, FIG. 5 is a view showing a fourth embodiment of the present invention, FIG. 6 is a view showing a fifth embodiment of the present invention, and FIG. FIG. 7 is a sectional view taken along line VII-VII, FIG. 8 is a view showing a sixth embodiment of the present invention, and FIG. 9 is a sectional view taken along line IX-IX in FIG. In the drawings, 1 is an exhaust pipe, 2 is a tail pipe, 3 is a box, 3a is a heat insulating member (porous layer), 3b is a skin member (tight layer), 4 is a connecting member, 4a is a receiving portion, and 4b is a A stop portion, 4c is a supporting portion, 4d is a connecting portion between the exhaust pipe and the connecting member, 4e is a connecting portion between the connecting member and the box body, and 5 is a sealing member.

───────────────────────────────────────────────────── フロントページの続き (72)考案者 中川 幸弘 愛知県春日井市東山町2丁目1番地9号 (56)参考文献 特公 平4−45649(JP,B2) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukihiro Nakagawa 2-9-1 Higashiyama-cho, Kasugai-shi, Aichi (56) References Japanese Patent Publication 4-45649 (JP, B2)

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】エキゾーストパイプに箱体を取り付けてな
る消音器であって、前記箱体を外皮部材とその内側の断
熱部材とからなる層状部材にて形成したものにおいて、 前記取付部における前記エキゾーストパイプと箱体との
間に連結部材を介在せしめ、この連結部材における前記
エキゾーストパイプと前記箱体との夫々の接続部の間に
大気との放熱面を設けたことを特徴とする消音器。
1. A silencer in which a box body is attached to an exhaust pipe, wherein the box body is formed of a layered member including an outer skin member and a heat insulating member inside thereof, and the exhaust at the attachment portion. A silencer characterized in that a connecting member is interposed between the pipe and the box body, and a heat radiating surface for the atmosphere is provided between each connecting portion of the connecting pipe between the exhaust pipe and the box body.
【請求項2】前記連結部材は、前記エキゾーストパイプ
の径方向に沿って形成された前記箱体の止め部と、前記
エキゾーストパイプの長手方向に沿って形成された前記
箱体の受け部と、この受け部を前記エキゾーストパイプ
と離間して該エキゾーストパイプに取り付ける支持部と
からなる実用新案登録請求の範囲第1項記載の消音器。
2. The connecting member includes a stop portion of the box body formed along the radial direction of the exhaust pipe, and a receiving portion of the box body formed along the longitudinal direction of the exhaust pipe. The silencer according to claim 1, wherein the receiving part is separated from the exhaust pipe and a supporting part is attached to the exhaust pipe.
【請求項3】前記放熱面は、前記連結部材の前記受け部
に形成されていることを特徴とする実用新案登録請求の
範囲第2項記載の消音器。
3. The silencer according to claim 2, wherein the heat dissipation surface is formed on the receiving portion of the connecting member.
【請求項4】前記放熱面には、放熱フィンが形成されて
いることを特徴とする実用新案登録請求の範囲第3項記
載の消音器。
4. The silencer according to claim 3, wherein the heat dissipation surface is provided with heat dissipation fins.
JP1988011070U 1988-01-29 1988-01-29 Silencer Expired - Lifetime JPH072971Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1988011070U JPH072971Y2 (en) 1988-01-29 1988-01-29 Silencer
US07/302,531 US4993513A (en) 1988-01-29 1989-01-27 Muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988011070U JPH072971Y2 (en) 1988-01-29 1988-01-29 Silencer

Publications (2)

Publication Number Publication Date
JPH01115832U JPH01115832U (en) 1989-08-04
JPH072971Y2 true JPH072971Y2 (en) 1995-01-30

Family

ID=31219297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988011070U Expired - Lifetime JPH072971Y2 (en) 1988-01-29 1988-01-29 Silencer

Country Status (1)

Country Link
JP (1) JPH072971Y2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7325652B2 (en) * 2001-11-06 2008-02-05 Ocv Intellectual Capital, Llc Bumper/muffler assembly
DE102011075643A1 (en) * 2011-05-11 2012-11-15 J. Eberspächer GmbH & Co. KG Exhaust system component
DE102012204114B4 (en) * 2012-03-15 2015-03-26 Eberspächer Exhaust Technology GmbH & Co. KG Muffler unit
JP2017155693A (en) * 2016-03-03 2017-09-07 いすゞ自動車株式会社 Exhaust emission control device of internal combustion engine
JP7195183B2 (en) 2019-03-06 2022-12-23 三恵技研工業株式会社 Silencer and its manufacturing method

Also Published As

Publication number Publication date
JPH01115832U (en) 1989-08-04

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