JPH0218279Y2 - - Google Patents
Info
- Publication number
- JPH0218279Y2 JPH0218279Y2 JP1985136756U JP13675685U JPH0218279Y2 JP H0218279 Y2 JPH0218279 Y2 JP H0218279Y2 JP 1985136756 U JP1985136756 U JP 1985136756U JP 13675685 U JP13675685 U JP 13675685U JP H0218279 Y2 JPH0218279 Y2 JP H0218279Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust outlet
- outlet pipe
- drain pipe
- pipe
- exhaust
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000011324 bead Substances 0.000 claims description 13
- 230000003584 silencer Effects 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
Ａ 考案の目的
(1) 産業上の利用分野
本考案は自動車等のエンジンに用いられる排気
消音器の内部に滞留する水滴を排出する為の排気
消音器の水抜き装置に関する。[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field The present invention is a water draining device for an exhaust silencer used in automobile engines, etc., for discharging water droplets accumulated inside the exhaust silencer. Regarding.
(2) 従来の技術
周知のようにエンジンの排気ガスは排気消音器
内を通過する際、冷却されるが、その時、排気ガ
ス中に含まれる水蒸気が水滴となり、消音器本体
の内底部に滞留する。この水滴は放置しておくと
発錆の原因となり、ひいては消音器本体の内底部
に穴を開けて排気消音器の性能を低下させるの
で、従来より排気ガスの流れに伴い排気導出管内
に生じる負圧を利用して排気ガスと共に排気導出
管から排出させる水抜き装置が用いられている。
即ち、排気消音器本体に配設される排気導出管の
一側壁に取付孔を穿設し、該孔に消音器本体内の
底部を排気導出管内に連通する水抜き管を嵌入固
定して、該水抜き管により前記水滴を吸上げるよ
うに構成している。(2) Prior art As is well known, engine exhaust gas is cooled when passing through an exhaust muffler, but at that time, water vapor contained in the exhaust gas becomes water droplets and accumulates at the inner bottom of the muffler body. do. If these water droplets are left unattended, they can cause rust, which in turn creates a hole in the inner bottom of the muffler body, reducing the performance of the exhaust muffler. A water draining device is used that uses pressure to discharge water from an exhaust outlet pipe together with exhaust gas.
That is, a mounting hole is bored in one side wall of the exhaust outlet pipe provided in the exhaust muffler body, and a drain pipe that communicates the bottom of the silencer body with the exhaust outlet pipe is fitted and fixed into the hole. The water drain pipe is configured to suck up the water droplets.
(3) 考案が解決しようとする問題点
しかし、従来装置では、水抜き管は取付孔の周
縁部へ溶接により固着されており、しかも製造上
の都合から全周ではなく、同一周面上の２，３箇
所が溶接されるに過ぎなかつたので、前記取付孔
と水抜き管周壁との間に僅かながら間隙が生じ、
これにより前記取付孔の気密性が失われて水滴の
吸上げ効率が低下し、その結果水滴の充分な排出
ができないという欠点があつた。(3) Problems that the invention aims to solve However, in conventional devices, the drain pipe is fixed to the periphery of the mounting hole by welding, and due to manufacturing reasons, it is not fixed all the way around, but on the same circumference. Since only a few places were welded, a slight gap was created between the mounting hole and the peripheral wall of the drain pipe.
As a result, the airtightness of the mounting hole is lost, the water droplet suction efficiency is reduced, and as a result, water droplets cannot be sufficiently discharged.
本考案は、このような欠点を解消した排気消音
器の水抜き装置を提供することを目的とする。 An object of the present invention is to provide a water draining device for an exhaust muffler that eliminates such drawbacks.
Ｂ 考案の構成
(1) 問題点を解決するための手段
上記目的を達成するために、本考案は、水抜き
管の中間部周壁を膨出形成して取付孔の下方開口
縁部に圧着させる環状のビード部と、水抜き管の
上方開口端を拡開形成して取出孔の上方開口縁部
に圧着させるラツパ状の鍔部とにより水抜き管を
排気導出管に取付け、前記鍔部を排気導出管内に
突出させたことを特徴とする。B. Structure of the device (1) Means for solving the problem In order to achieve the above object, the present invention forms a bulge in the middle circumferential wall of the drain pipe and presses it onto the lower opening edge of the mounting hole. The drain pipe is attached to the exhaust outlet pipe by an annular bead and a flange-shaped collar that expands the upper opening end of the drain pipe and presses it against the upper opening edge of the outlet hole. It is characterized by protruding into the exhaust outlet pipe.
(2) 作用
水抜き管は環状のビード部と、ラツパ状の鍔部
とにより排気導出管の取付孔周縁部に圧着固定さ
れるので、取付孔周縁部と水抜き管との間に間隙
が生せず、気密が確実に保たれ、排気導出管内の
排気ガス流による水抜き管の吸上げ効果が良好と
なる。(2) Function The drain pipe is crimped and fixed to the periphery of the mounting hole of the exhaust outlet pipe by the annular bead and the flange, so there is no gap between the periphery of the mounting hole and the drain pipe. The airtightness is reliably maintained, and the suction effect of the drain pipe by the exhaust gas flow in the exhaust outlet pipe is improved.
また、前記鍔部は排気導出管内に突出している
ので、水抜き管の上方開口端は、排気導出管の内
面から離れた位置を占めることになり、排気導出
管の内面から離れて流れる比較的速い流速の排気
ガス流を水抜き管に作用させることができる。 In addition, since the flange protrudes into the exhaust outlet pipe, the upper opening end of the drain pipe occupies a position away from the inner surface of the exhaust outlet pipe, and the water drains away from the inner face of the exhaust outlet pipe. A high velocity exhaust gas stream can be applied to the drain pipe.
さらに、前記鍔部はラツパ状をなしているの
で、水抜き管により吸上げられた水滴は前記鍔部
で微細に飛散される。 Furthermore, since the flange is shaped like a ruffle, water droplets sucked up by the drain pipe are finely scattered by the flange.
しかも、前記ビード部及び鍔部は水抜き管の一
部をもつて構成されるので、専用の取付部材は勿
論、シール部材も不要である。 Furthermore, since the bead portion and the flange portion are constituted by a part of the drain pipe, there is no need for a dedicated mounting member or a sealing member.
(3) 実施例
以下、図面により本考案を自動車のエンジン用
排気消音器に適用した一実施例について説明する
と、第１図において１は円筒形の消音器本体で、
その前後両端面に端板２，３を備えている。これ
ら端板２，３には前部側の排気導入管４および後
部側の排気導出管５がその一端部をそれぞれ本体
１内に嵌挿して固着されており、排気導入管４の
他端部は図示しないエンジンの排気管に接続さ
れ、排気導出管５の他端部は大気中に開放されて
いる。本体１内には排気導入、導出管４，５に亘
り周知の消音機構が設けられ、排気導入管４から
本体１内に導入された排気ガスを、その圧力およ
び温度を下げながら排気導出管５へ排出するよう
になつている。(3) Embodiment Hereinafter, an embodiment in which the present invention is applied to an exhaust silencer for an automobile engine will be explained with reference to the drawings. In FIG. 1, 1 is a cylindrical silencer body;
End plates 2 and 3 are provided on both front and rear end surfaces. An exhaust inlet pipe 4 on the front side and an exhaust outlet pipe 5 on the rear side are fixed to these end plates 2 and 3, with one end thereof inserted into the main body 1, and the other end of the exhaust inlet pipe 4 is connected to an exhaust pipe of an engine (not shown), and the other end of the exhaust outlet pipe 5 is open to the atmosphere. A well-known silencing mechanism is provided in the main body 1 over the exhaust gas introduction and exhaust pipes 4 and 5, and the exhaust gas introduced into the main body 1 from the exhaust gas introduction pipe 4 is passed through the exhaust gas discharge pipe 5 while lowering its pressure and temperature. It is designed to be discharged to
排気導出管５の本体１内における下側壁には取
付孔６が穿設されており、この取付孔６に水抜き
管７の上端部が嵌入して次のように取付けられ
る。 A mounting hole 6 is bored in the lower wall of the main body 1 of the exhaust outlet pipe 5, and the upper end of the drain pipe 7 is fitted into the mounting hole 6 to be mounted as follows.
即ち、第２図に明示するように水抜き管７には
その上方開口端に近い中間部周壁を環状に膨出し
てなるビード部７ａと、上方開口端をラツパ状に
拡開してなる鍔部７ｂとが設けられ、これらビー
ド部７ａおよび鍔部７ｂを取付孔６を挟んで排気
導出管７の内側面および外側面にそれぞれ圧着す
ることにより、水抜き管７は排気導出管５に取付
けられる。その際、前記ラツパ状鍔部７ｂは排気
導出管５内に突出するように設けられる。 That is, as clearly shown in FIG. 2, the drain pipe 7 has a bead portion 7a formed by an annular bulging of the intermediate circumferential wall near the upper opening end, and a collar formed by widening the upper opening end into a tsupa-like shape. The drain pipe 7 is attached to the exhaust outlet pipe 5 by crimping the bead part 7a and the collar part 7b to the inner and outer surfaces of the exhaust outlet pipe 7, respectively, with the mounting hole 6 in between. It will be done. At this time, the flange-shaped collar portion 7b is provided so as to protrude into the exhaust outlet pipe 5.
この水抜き管７はその下方開口端を排気導出管
５内の底面に小間隙を存して対向させる長さに形
成されており、従つて、排気導出管５内と消音器
本体１内の底部とは水抜き管７を介して相互に連
通される。 The drain pipe 7 is formed in such a length that its lower open end faces the bottom surface of the exhaust outlet pipe 5 with a small gap between them, so that the inside of the exhaust outlet pipe 5 and the muffler main body 1 are connected to each other. It communicates with the bottom via a drain pipe 7.
次に、第３図を参照して、前記水抜き管７の取
付方法を説明すると、水抜き管７は、予めビード
部７ａが形成された状態で、図示しない油圧シリ
ンダ等により上下に移動する移動クランプ１０に
把持されている。移動クランプ１０の下方には、
ベツド１２の芯金ホルダ１３に固定された芯金１
１が配設されており、該芯金ホルダ１３の先端寄
り側面には円錐状の成形突起１４が突設されてい
る。この成形突起１４と前記移動クランプ１０の
クランプ孔１０ａとは同軸上に配設されており、
前記移動クランプ１０が下降すると、移動クラン
プ１０に把持された水抜き管７のビード部７ａ側
開口端部は成形突起１４の側面に圧接されながら
該側面に沿つて折曲するようになつている。芯金
１１の下方でベツド１２上にはスプリング等から
成る伸縮自在の支持部材１５を介して、排気導出
管５を載置する受け板１６が取付けられており、
排気導出管５が押圧されて下降すると、その降下
圧力は前記支持部材１５の弾発性により吸収され
るようになつている。 Next, referring to FIG. 3, the method of attaching the drain pipe 7 will be explained. The drain pipe 7 is moved up and down by a hydraulic cylinder or the like (not shown) with a bead portion 7a formed in advance. It is held by a moving clamp 10. Below the movable clamp 10,
Core metal 1 fixed to core metal holder 13 of bed 12
1 is disposed, and a conical molding protrusion 14 is provided protruding from the side surface of the cored metal holder 13 near the tip. This molded protrusion 14 and the clamp hole 10a of the movable clamp 10 are arranged coaxially,
When the movable clamp 10 descends, the open end on the bead portion 7a side of the drain pipe 7 held by the movable clamp 10 is pressed against the side surface of the molded protrusion 14 and bent along the side surface. . A receiving plate 16 on which the exhaust outlet pipe 5 is placed is attached to the bed 12 below the core bar 11 via a telescopic support member 15 made of a spring or the like.
When the exhaust outlet pipe 5 is pressed down, the downward pressure is absorbed by the elasticity of the support member 15.
しかして、排気導出管５を芯金１１に挿入した
後、予め水抜き管７の開口端部を排気導出管５の
取付孔６に嵌入して排気導出管５内に所定長さ突
出させ、この状態で移動クランプ１０を下降させ
ると、移動クランプ１０のクランプ孔１０ａと成
形突起１４は同軸上にあるので、前記水抜き管７
の開口端部は突起１４の側面に圧接され、続いて
該側面に沿つて拡開しながら折曲されて、ラツパ
状の鍔部７ｂを形成する。その結果、取付孔６の
周縁部は該鍔部７ｂおよび前記ビード部７ａに挟
圧された状態となり、水抜き管７は排気導出管５
に圧着固定される。ところで前記移動クランプ１
０の下降に伴う排気導出管５の降下圧力は前記支
持部材１５の弾発性により吸収されるので、加工
中に管５が変形したり、破損したりする惧れはな
い。 After inserting the exhaust outlet pipe 5 into the core metal 11, the open end of the drain pipe 7 is previously fitted into the mounting hole 6 of the exhaust outlet pipe 5 to protrude a predetermined length into the exhaust outlet pipe 5. When the movable clamp 10 is lowered in this state, the clamp hole 10a of the movable clamp 10 and the molded protrusion 14 are coaxial, so the drain pipe 7
The open end portion of the protrusion 14 is pressed against the side surface of the protrusion 14, and then bent while expanding along the side surface to form a flange-like flange portion 7b. As a result, the peripheral edge of the mounting hole 6 is compressed by the flange 7b and the bead 7a, and the drain pipe 7 is compressed by the exhaust outlet pipe 5.
It is crimped and fixed. By the way, the movable clamp 1
Since the falling pressure of the exhaust outlet pipe 5 due to the lowering of the temperature is absorbed by the elasticity of the support member 15, there is no risk that the pipe 5 will be deformed or damaged during processing.
次にこの実施例の作用を説明する。第２図にお
いて排気ガスの冷却の為に生じた水滴Ｗは消音器
本体１の底部に滞留しているが、排気導出管５内
を排気ガスが通過する（矢示Ｐ）と、該排気導出
管５内には排気ガスの流れに伴い負圧が生じるの
で、前記水滴Ｗは、排気導出管５と連通した水抜
き管７中に吸引され、該管７内を通過し（矢示
Ｑ）、前記排気ガス（Ｐ）と共に排気導出管５外
へ排出される。 Next, the operation of this embodiment will be explained. In FIG. 2, water droplets W generated for cooling the exhaust gas remain at the bottom of the muffler body 1, but when the exhaust gas passes through the exhaust outlet pipe 5 (arrow P), the exhaust gas is Since negative pressure is generated in the pipe 5 as the exhaust gas flows, the water droplets W are sucked into the drain pipe 7 that communicates with the exhaust outlet pipe 5 and pass through the pipe 7 (arrow Q). , is discharged to the outside of the exhaust outlet pipe 5 together with the exhaust gas (P).
ところで、前記水抜き管７は排気導出管５の取
付孔６周縁部に、ビード部７ａと鍔部７ｂとによ
り、全周的に圧着して取付けられるのでこの取付
部には間隙が生せず気密性が確実に保たれること
になり、排気導出管５内の負圧を漏れなく水抜き
管７に作用させることができるので、水抜き管７
の吸上げ効果が良好である。 By the way, the drain pipe 7 is attached to the peripheral edge of the attachment hole 6 of the exhaust outlet pipe 5 by being crimped around the entire circumference by the bead portion 7a and the collar portion 7b, so there is no gap in this attachment portion. Airtightness is reliably maintained, and the negative pressure inside the exhaust outlet pipe 5 can be applied to the drain pipe 7 without leaking.
The suction effect is good.
また、前記鍔部７ｂは排気導出管５内に突出し
ているので、水抜き管７の上方開口端は、排気導
出管５の内面から離れた位置を占めることにな
り、排気導出管５の内面から離れて流れる比較的
速い流速の排気ガス流を水抜き管７に作用させる
ことができ、水抜き管７の吸上げ効果を更に助長
させる。 Further, since the flange portion 7b protrudes into the exhaust outlet pipe 5, the upper opening end of the drain pipe 7 occupies a position away from the inner surface of the exhaust outlet pipe 5. The relatively high velocity exhaust gas flow flowing away from the drain pipe 7 can be applied to the drain pipe 7, further enhancing the suction effect of the drain pipe 7.
さらに、前記鍔部７ｂはラツパ状をなしている
ので、水抜き管７により吸上げられた水滴は前記
鍔部７ｂで微細に飛散され、排ガス流に確実に乗
ることができる。 Furthermore, since the flange 7b has a tulle shape, the water droplets sucked up by the drain pipe 7 are finely scattered by the flange 7b and can be reliably carried by the exhaust gas flow.
しかも、前記ビード部７ａ及び鍔部７ｂは水抜
き管７の一部をもつて構成されるので、専用の取
付部材もシール部材も不要であり、水抜き管７の
取付構造は極めて簡単である。 Furthermore, since the bead portion 7a and the flange portion 7b are constituted by a part of the drain pipe 7, there is no need for a dedicated mounting member or sealing member, and the mounting structure of the drain pipe 7 is extremely simple. .
Ｃ 考案の効果
以上のように本考案によれば、水抜き管を、そ
れと一体の環状のビード部とラツパ状の鍔部とに
より排気導出管の取付孔周縁部に圧着固定したの
で、取付孔周縁部と水抜き管との間に間隙が生ぜ
ず、気密が確保される。したがつて排気導出管内
の排気ガス流による吸上げ効果を良好にすると共
に、水抜き管のための専用の取付部材及びシール
部材を不要にして構造の簡素化を図り、消音器の
コスト低減にも寄与し得る。C. Effects of the invention As described above, according to the invention, the drain pipe is crimped and fixed to the periphery of the mounting hole of the exhaust outlet pipe using the annular bead part and the flange part that are integral with the drain pipe. No gap is created between the peripheral edge and the drain pipe, ensuring airtightness. Therefore, the suction effect of the exhaust gas flow in the exhaust outlet pipe is improved, and the structure is simplified by eliminating the need for a special mounting member and sealing member for the water drain pipe, thereby reducing the cost of the silencer. can also contribute.
また、前記鍔部を排気導出管内に突出させたの
で、排気導出管の内面から離れて流れる比較的速
い流速の排気ガス流を水抜き管に作用させること
ができ、その結果、水抜き管の吸上げ効果の更な
る向上をもたらすことができる。 Furthermore, since the flange is made to protrude into the exhaust outlet pipe, the exhaust gas flow having a relatively high flow rate and flowing away from the inner surface of the exhaust outlet pipe can be applied to the drain pipe, and as a result, the drain pipe is This can further improve the suction effect.
さらに、前記鍔部をラツパ状に形成したので、
水抜き管により吸上げられた水は前記鍔部で微細
に飛散される。したがつて、細く飛散した水滴は
排気ガス流に乗つて容易に外部に排出される。 Furthermore, since the flange portion is formed into a flat shape,
The water sucked up by the drain pipe is finely scattered at the flange. Therefore, the finely scattered water droplets are easily discharged to the outside along with the exhaust gas flow.
第１図は本考案の水抜きパイプを備えた消音器
の一部破裁正面図、第２図は第１図の要部拡大
図、第３図は水抜きパイプの製造方法を示す図で
ある。
１……消音器本体、５……排気導出管、６……
取付孔、７……水抜き管、７ａ……ビード部、７
ｂ……鍔部、Ｗ……結露。
Figure 1 is a partially cut-away front view of a silencer equipped with a water drain pipe of the present invention, Figure 2 is an enlarged view of the main parts of Figure 1, and Figure 3 is a diagram showing the manufacturing method of the water drain pipe. be. 1... Silencer body, 5... Exhaust outlet pipe, 6...
Mounting hole, 7... Drain pipe, 7a... Bead part, 7
b...Trim section, W...Condensation.
Claims (1)
の下側壁に取付孔６を穿設し、この取付孔６に、
消音器本体１内の底部を排気導出管５内に連通す
る水抜き管７を嵌合し、排気導出管５内の排気ガ
ス流を利用して消音器本体１底部に溜る水滴を水
抜き管７により吸上げるようにした、排気消音器
の水抜き装置において、 水抜き管７の中間部周壁を膨出形成して取付孔
６の下方開口縁部に圧着させる環状のビード部７
ａと、水抜き管７の上方開口端を拡開形成して取
出孔６の上方開口縁部に圧着させるラツパ状の鍔
部７ｂとにより水抜き管７を排気導出管５に取付
け、前記鍔部７ｂを排気導出管５内に突出させた
ことを特徴とする、排気消音器の水抜き装置。[Claims for Utility Model Registration] Exhaust outlet pipe 5 penetrating the end wall 3 of the silencer body 1
A mounting hole 6 is drilled in the lower wall of the
A drain pipe 7 that communicates the bottom of the silencer body 1 with the exhaust outlet pipe 5 is fitted, and water droplets accumulated at the bottom of the silencer body 1 are drained using the exhaust gas flow in the exhaust outlet pipe 5. In a water draining device for an exhaust muffler, the water draining pipe 7 has an annular bead portion 7 which is bulged from the middle circumferential wall thereof and press-fitted to the lower opening edge of the mounting hole 6.
The drain pipe 7 is attached to the exhaust outlet pipe 5 by the upper opening end of the drain pipe 7 which is expanded and is pressed to the upper opening edge of the extraction hole 6. A water draining device for an exhaust silencer, characterized in that a portion 7b projects into the exhaust outlet pipe 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985136756U JPH0218279Y2 (en) | 1985-09-06 | 1985-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985136756U JPH0218279Y2 (en) | 1985-09-06 | 1985-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6245329U JPS6245329U (en) | 1987-03-19 |
| JPH0218279Y2 true JPH0218279Y2 (en) | 1990-05-22 |
Family
ID=31040168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985136756U Expired JPH0218279Y2 (en) | 1985-09-06 | 1985-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0218279Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100488785B1 (en) * | 2002-04-10 | 2005-05-12 | 기아자동차주식회사 | Apparatus for draining condensed water in an automobile muffler |
| KR20030093506A (en) * | 2002-06-03 | 2003-12-11 | 기아자동차주식회사 | Apparatus for draining condensed water in an automobile muffler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54166652U (en) * | 1978-05-16 | 1979-11-22 |
-
1985
- 1985-09-06 JP JP1985136756U patent/JPH0218279Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245329U (en) | 1987-03-19 |
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