JP2743239B2 - Exhaust manifold tube - Google Patents
Exhaust manifold tubeInfo
- Publication number
- JP2743239B2 JP2743239B2 JP7365993A JP7365993A JP2743239B2 JP 2743239 B2 JP2743239 B2 JP 2743239B2 JP 7365993 A JP7365993 A JP 7365993A JP 7365993 A JP7365993 A JP 7365993A JP 2743239 B2 JP2743239 B2 JP 2743239B2
- Authority
- JP
- Japan
- Prior art keywords
- manifold
- lower case
- exhaust manifold
- end wall
- upper case
- 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 - Fee Related
Links
Landscapes
- Exhaust Silencers (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、主として車両に搭載さ
れる多気筒エンジンに取付ける板金製の排気マニホルド
用管体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet metal exhaust manifold tube to be mounted on a multi-cylinder engine mounted on a vehicle.
【０００２】[0002]
【従来の技術】排気マニホルドを板金製にすると、鋳造
のものに比べて重量及び熱容量を減少させることがで
き、これにより車両走向距離が向上し、かつ排気浄化触
媒装置の温度上昇が早まり、早期に浄化作用が開始され
る利点を有する。この種のものとしては、特公昭６３−
２６２５２、実開平１−１１９８２４等の技術が知られ
ており、この従来技術は、多岐部から集合部にわたる全
体を、平面で２分割された１対の半割体とし、それぞれ
をプレス加工したのちつき合わせたもので、全体が３次
元的に湾曲しているものではなく、かつ排気の流入側と
流出側は、同一平面上で逆方向に向けて開口している。
通常、車両用のエンジンにおいては、排気ポートをエン
ジンの側部に設け、排気管又は触媒装置をエンジンの下
部側方に設けているので、前記の従来技術による排気マ
ニホルドを使用する場合は、該排気マニホルドの流入側
又は流出側の少なくとも一方に湾曲した接続管を使用し
なければならない。2. Description of the Related Art When an exhaust manifold is made of sheet metal, its weight and heat capacity can be reduced as compared with those of a cast one, so that the running distance of a vehicle is improved, and the temperature of an exhaust purification catalyst device rises more quickly, This has the advantage that the purifying action is started. As this kind of thing,
26252, Japanese Utility Model Laid-Open No. 1-119824, and the like, and in this conventional technique, the entirety from the divergent portion to the gathering portion is formed into a pair of half halves divided by a plane, and each is pressed. They are not three-dimensionally curved as a whole, and the inflow side and the outflow side of the exhaust are open in the opposite direction on the same plane.
Usually, in an engine for a vehicle, an exhaust port is provided on a side of the engine, and an exhaust pipe or a catalyst device is provided on a lower side of the engine. A curved connecting pipe must be used on at least one of the inlet and outlet sides of the exhaust manifold.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、鋳造による
ものと同様に排気通路が湾曲している排気マニホルド
を、板金の成形により作り、軽量化をはかることを課題
とする。SUMMARY OF THE INVENTION It is an object of the present invention to reduce the weight of an exhaust manifold having a curved exhaust passage similar to that obtained by casting by forming a sheet metal.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
の手段の一つは、請求項１に記載したとおり、外側へふ
くらむ壁をもつ、板金から成形された下ケースと上ケー
スを向き合わせて溶接してなり、前記下ケースは、半割
りの多岐部と該多岐部から分岐する集合部を備え、前記
多岐部は、その底部からバーリング加工で側方へ突出し
た複数個の筒部を備え、前記上ケースは、下ケースの前
記多岐部及び集合部に重なる半割りの多岐部及び集合部
を備えると共に、集合部の端部に流路と交差する方向の
端壁と、該端壁から外向きに伸びる筒部を備えることを
特徴とする。According to one aspect of the present invention, a lower case and an upper case, each having a wall that bulges outward and formed from sheet metal, are opposed to each other. The lower case is provided with a half-divided multi-part and a collecting part branched from the multi-part, and the multi-part has a plurality of cylindrical parts protruding sideways by burring from the bottom thereof. The upper case includes a half split manifold and a collecting part overlapping the manifold and the collecting part of the lower case, and an end wall in a direction intersecting a flow path at an end of the collecting part, and the end wall. A cylindrical portion extending outward from the cylindrical portion.
【０００５】また、他の一つの手段は、請求項２に記載
したとおり、外側へふくらむ壁面をもつ、板金から成形
された下ケースと上ケースを向き合わせて溶接してな
り、前記下ケースは、半割りの多岐部と該多岐部から分
岐する集合部と該集合部の下流側の端壁を備え、前記多
岐部は、その底部からバーリング加工で側方へ突出した
複数個の筒部を備え、前記端壁は、バーリング加工で下
流側へ突出した筒部を備え、前記上ケースは、下ケース
の前記多岐部及び集合部に重なる半割の多岐部及び集合
部を備えることを特徴とする。[0005] In another aspect of the present invention, the lower case and the upper case, each having a wall surface bulging outward and formed from sheet metal, are welded to each other with the wall facing outward. A divergent portion, a collecting portion branching off from the diverging portion, and an end wall on the downstream side of the collecting portion, wherein the diverging portion has a plurality of cylindrical portions protruding sideways by burring from the bottom thereof. The end wall includes a tubular portion that protrudes downstream by burring, and the upper case includes a half-divergent portion and an aggregate portion that overlap the manifold portion and the aggregate portion of the lower case, I do.
【０００６】[0006]
【作用】前記請求項１の手段によれば、下ケースの多岐
部に設けた複数個のバーリング穴が横向きの流入部とな
り、上ケースの端壁に設けたバーリング穴が流出部とな
る。According to the first aspect of the present invention, the plurality of burring holes provided in the divergent portion of the lower case serve as lateral inflow portions, and the burring holes provided in the end wall of the upper case serve as outflow portions.
【０００７】そして、前記請求項２の手段によれば、下
ケースの多岐部に設けたバーリング穴が流入部となり、
該下ケースの集合部の端壁に設けたバーリング穴が流出
部となる。According to the second aspect of the present invention, the burring hole provided in the divergent portion of the lower case serves as an inflow portion,
A burring hole provided in the end wall of the collecting portion of the lower case serves as an outflow portion.
【０００８】[0008]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１〜３は第１実施例を示し、１は排気マニホル
ド管体、２はその流入部に溶接される入口フランジ、３
は流出部に溶接される出口フランジであり、それぞれが
ステンレス鋼の板金材より作られ、各部材１、２、３が
溶接されて排気マニホルドとなる。そして入口フランジ
２は、エンジン４の排気ポートに接続され、出口フラン
ジ３は、浄化用の触媒装置５又は排気管に接続される。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment, 1 is an exhaust manifold tube, 2 is an inlet flange welded to its inlet, 3
Is an outlet flange welded to the outflow portion, each of which is made of a sheet metal material of stainless steel, and the members 1, 2, and 3 are welded to form an exhaust manifold. The inlet flange 2 is connected to an exhaust port of the engine 4, and the outlet flange 3 is connected to a purifying catalytic device 5 or an exhaust pipe.
【０００９】排気マニホルド管体１は、下ケース６と上
ケース７を向き合わせて溶接したものであり、下ケース
６は、多岐部８と集合部９がＴ字状の板材からプレス成
形され、多岐部８の両端は閉じられ、多岐部８の中間部
及び集合部９は断面略Ｕ字状をなして外側へふくらんだ
形状とされ、更に多岐部８の底部に３個の穴１０を設け
て筒部１１がバーリング加工によって形成されている。
また、多岐部８と集合部９の端縁全体に下ケース７の端
縁を嵌め込むための嵌合部６ａが拡大形成されている。The exhaust manifold tube 1 has a lower case 6 and an upper case 7 which are welded to face each other. The lower case 6 is formed by press-forming a multi-part 8 and a collecting part 9 from a T-shaped plate. Both ends of the manifold 8 are closed, the middle part of the manifold 8 and the gathering part 9 have a substantially U-shaped cross section and bulge outward, and three holes 10 are provided at the bottom of the manifold 8. The cylindrical portion 11 is formed by burring.
Further, a fitting portion 6a for fitting the edge of the lower case 7 to the entire edge of the manifold 8 and the gathering portion 9 is enlarged.
【００１０】上ケース７も多岐部１２と集合部１３を備
え、Ｔ字状の板材からプレス成形されるが、集合部１３
の端部に端壁１４が湾曲加工により形成され、更に穴１
５とバーリング加工による筒部１６が形成される。そし
て集合部１３の上流側と多岐部１２の中間部は外側へ断
面半円状にふくらみ、多岐部１２の両端は閉じられる。[0010] The upper case 7 also has a manifold portion 12 and a gathering portion 13 and is press-formed from a T-shaped plate.
The end wall 14 is formed by bending at the end of
5, and a cylindrical portion 16 is formed by burring. The upstream side of the gathering portion 13 and the intermediate portion of the manifold portion 12 bulge outward in a semicircular cross section, and both ends of the manifold portion 12 are closed.
【００１１】以上のように成形された下ケース６と上ケ
ース７を向き合わせて前記嵌合部６ａを上ケース７の端
縁に嵌め、重なり部を溶接することにより排気マニホル
ド用管体１が作られる。そして、入口側の３個の筒部１
１に入口フランジ２の穴を嵌め、出口側の筒部１６に出
口フランジ３を嵌め、穴側から溶接することにより排気
マニホルドが完成する。With the lower case 6 and the upper case 7 formed as described above facing each other, the fitting portion 6a is fitted to the edge of the upper case 7, and the overlapping portion is welded to form the exhaust manifold tube 1. Made. And three cylindrical parts 1 on the entrance side
The exhaust manifold is completed by fitting the hole of the inlet flange 2 to 1, fitting the outlet flange 3 to the cylindrical portion 16 on the outlet side, and welding from the hole side.
【００１２】次に図４、５に示す第２実施例の排気マニ
ホルド管体２０も、下ケース２１と上ケース２２よりな
るが、該実施例においては下ケース２１に入口側と出口
側の筒部を形成している。図５において、多岐部２３に
は穴２４を有する３個の筒部２５がバーリング加工によ
り形成されることは第１実施例と同じであるが、集合部
２６に端壁２７を曲げと押出しにより形成して、穴２８
をもつ筒部２９をバーリング加工により成形し、かつ合
わせ部に拡径した嵌合部２１ａを備える。Next, an exhaust manifold tube 20 according to a second embodiment shown in FIGS. 4 and 5 also comprises a lower case 21 and an upper case 22. In this embodiment, the lower case 21 is provided with inlet and outlet cylinders. Part is formed. In FIG. 5, it is the same as that of the first embodiment that three cylindrical portions 25 having holes 24 are formed in the multi-portion portion 23 by burring, but the end wall 27 is bent and extruded to the collecting portion 26. Forming the hole 28
Is formed by burring and a fitting portion 21a having an enlarged diameter is provided at the mating portion.
【００１３】一方、上ケース２１は、多岐部３０及び集
合部３１に排気の入口及び出口はなく、断面半円形にふ
くらむ通路のみを備える。On the other hand, the upper case 21 does not have the inlet and outlet of the exhaust gas in the manifold portion 30 and the collecting portion 31 and has only a passage bulging in a semicircular cross section.
【００１４】したがって、下ケース２１の嵌合部２１ａ
に上ケース２２の端縁を嵌合して重なり部を溶接するこ
とにより排気マニホルド管体２０が形成され、入口側の
３個の筒体２５に入口フランジ２の穴を嵌め、出口側の
筒体２９に出口フランジを嵌めて、この穴側から溶接す
ることにより排気マニホルドが完成する。Therefore, the fitting portion 21a of the lower case 21
The exhaust manifold tube 20 is formed by fitting the edge of the upper case 22 to the upper case 22 and welding the overlapped portion. The holes of the inlet flange 2 are fitted into the three cylindrical bodies 25 on the inlet side, and the cylinder on the outlet side is formed. The exhaust manifold is completed by fitting the outlet flange to the body 29 and welding from the hole side.
【００１５】以上の各実施例において、排気マニホルド
管体１、２０の壁を板材を成形することにより作るから
軽量に作ることができ、また下ケース６、２１と上ケー
ス７、２２とに二つ割にして下ケース６、２１側にバー
リング加工で側方へ突出する筒部１０、２５を設けて入
口側としたから、排気マニホルドをエンジン４に沿わせ
て取付けることができる。In each of the above embodiments, since the walls of the exhaust manifold tubes 1 and 20 are formed by molding a plate material, the walls can be made lighter, and the lower cases 6 and 21 and the upper cases 7 and 22 can be made lighter. Since the lower cases 6 and 21 are provided with the cylindrical portions 10 and 25 projecting laterally by burring on the lower case 6 and 21 sides and provided on the inlet side, the exhaust manifold can be mounted along the engine 4.
【００１６】なお、前記の上下両ケースの断面形状は、
図示の形状に限ることなく、半円状又はＵ字状のものを
両ケースの一方又は両方に用いることができる。The sectional shape of the upper and lower cases is
Without being limited to the illustrated shape, a semicircular or U-shaped member can be used for one or both of the two cases.
【００１７】[0017]
【発明の効果】以上の説明から明らかなように、請求項
１及び２の発明によれば、排気マニホルド管体の壁を板
材から作るので軽量に作ることができ、しかも、排気の
入口側及び出口側の筒部をバーリング加工で形成するの
で、部品数が増加することなく加工も容易である。ま
た、前記入口側の筒部を下ケースの多岐部の底部から側
方に向けて突出させて設けたから、エンジンに接続する
ための湾曲した接続管を用いることなく、排気マニホル
ドをエンジンの側面に沿って設置することができる利点
を有する。As is apparent from the above description, according to the first and second aspects of the present invention, since the wall of the exhaust manifold pipe is made of a plate material, it can be made lightweight, and furthermore, the exhaust manifold can be made lighter. Since the cylindrical portion on the outlet side is formed by burring, the processing is easy without increasing the number of parts. Further, since the inlet-side cylindrical portion is provided so as to protrude laterally from the bottom of the manifold of the lower case, the exhaust manifold is provided on the side of the engine without using a curved connection pipe for connecting to the engine. It has the advantage that it can be installed along.
【図１】 本発明の第１実施例の側面図FIG. 1 is a side view of a first embodiment of the present invention.
【図２】 同上分解斜視図FIG. 2 is an exploded perspective view of the same.
【図３】 同上分解側面図FIG. 3 is an exploded side view of the same.
【図４】 本発明の第２実施例の側面図FIG. 4 is a side view of a second embodiment of the present invention.
【図５】 同上分解斜視図FIG. 5 is an exploded perspective view of the same.
１、２０ 排気マニホルド管体 ２ 入口フ
ランジ ３ 出口フランジ ６、２１ 下ケース ７、２２ 上ケース ８、１２、２３、３０ 多岐部 ９、１３、２６、３１ 集合部 １１、１６、２５、
２９ 筒部 ４ 端壁1, 20 Exhaust manifold pipe 2 Inlet flange 3 Outlet flange 6, 21 Lower case 7, 22 Upper case 8, 12, 23, 30 Miscellaneous parts 9, 13, 26, 31 Assembling parts 11, 16, 25,
29 tube part 4 end wall
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−61511（ＪＰ，Ａ) 特開 昭56−96113（ＪＰ，Ａ) 特開 昭62−206216（ＪＰ，Ａ) 実開 昭64−13222（ＪＰ，Ｕ) 実開 平１−119824（ＪＰ，Ｕ) 特公 昭63−26252（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-61511 (JP, A) JP-A-56-96113 (JP, A) JP-A-62-206216 (JP, A) 13222 (JP, U) JP-A 1-119824 (JP, U) JP-B 63-26252 (JP, B2)
Claims (2)
された下ケース（６）と上ケース（７）を向き合わせて
溶接してなり、 前記下ケース（６）は、半割りの多岐部（８）と該多岐
部（８）から分岐する集合部（９）を備え、 前記多岐部（８）は、その底部からバーリング加工で側
方へ突出した複数個の筒部（１１）を備え、 前記上ケース（７）は、下ケース（６）の前記多岐部
（８）及び集合部（９）に重なる半割りの多岐部（１
２）及び集合部（１３）を備えると共に、 集合部（１３）の端部に流路と交差する方向の端壁（１
４）と、該端壁（１４）から外向きに伸びる筒部（１
６）を備えることを特徴とする、排気マニホルド用管
体。1. A lower case (6) formed from sheet metal and an upper case (7) having walls bulging outward are welded face-to-face, and the lower case (6) is a half-divided multipart. (8) and an assembling portion (9) branching from the manifold portion (8). The manifold portion (8) includes a plurality of cylindrical portions (11) protruding laterally from the bottom thereof by burring. The upper case (7) is a half-divided manifold (1) overlapping the manifold (8) and the gathering unit (9) of the lower case (6).
2) and a collecting part (13), and an end wall (1) in a direction intersecting with the flow path at an end of the collecting part (13).
4) and a cylindrical portion (1) extending outward from the end wall (14).
6) A tube for an exhaust manifold, comprising:
形された下ケース（２１）と上ケース（２２）を向き合
わせて溶接してなり、 前記下ケース（２１）は、半割りの多岐部（２３）と該
多岐部（２３）から分岐する集合部（２６）と該集合部
（２６）の下流側の端壁（２７）を備え、 前記多岐部（２３）は、その底部からバーリング加工で
側方へ突出した複数個の筒部（２５）を備え、 前記端壁（２７）は、バーリング加工で下流側へ突出し
た筒部（２７）を備え、 前記上ケース（２２）は、下ケース（２１）の前記多岐
部（２３）及び集合部（２６）に重なる半割りの多岐部
（３０）及び集合部（３１）を備えることを特徴とす
る、排気マニホルド用管体。2. A lower case (21) and an upper case (22) formed from sheet metal and having a wall surface bulging outward are welded to face each other. (23), a gathering part (26) branching from the manifold part (23), and an end wall (27) on the downstream side of the gathering part (26), and the manifold part (23) is burred from its bottom. The end wall (27) includes a cylindrical portion (27) protruding downstream by burring, and the upper case (22) includes a lower portion. A pipe for an exhaust manifold, comprising a split manifold section (30) and a gathering section (31) that overlap the manifold section (23) and the gathering section (26) of the case (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7365993A JP2743239B2 (en) | 1993-03-31 | 1993-03-31 | Exhaust manifold tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7365993A JP2743239B2 (en) | 1993-03-31 | 1993-03-31 | Exhaust manifold tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06280557A JPH06280557A (en) | 1994-10-04 |
| JP2743239B2 true JP2743239B2 (en) | 1998-04-22 |
Family
ID=13524630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7365993A Expired - Fee Related JP2743239B2 (en) | 1993-03-31 | 1993-03-31 | Exhaust manifold tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2743239B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10112707C1 (en) * | 2001-03-16 | 2002-06-06 | Zeuna Staerker Kg | Exhaust manifold production, for internal combustion motor, is composed of an inner and outer shell each of part-shells joined together with a gas-tight seam without welding sprays |
| DE102011101947B4 (en) * | 2011-05-18 | 2015-05-21 | Tenneco Gmbh | Collector for manifold pipes |
| KR101394037B1 (en) * | 2012-08-28 | 2014-05-09 | 기아자동차 주식회사 | Exhaust gas exhaust system |
-
1993
- 1993-03-31 JP JP7365993A patent/JP2743239B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06280557A (en) | 1994-10-04 |
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