JPH0229218Y2 - - Google Patents
Info
- Publication number
- JPH0229218Y2 JPH0229218Y2 JP1987063521U JP6352187U JPH0229218Y2 JP H0229218 Y2 JPH0229218 Y2 JP H0229218Y2 JP 1987063521 U JP1987063521 U JP 1987063521U JP 6352187 U JP6352187 U JP 6352187U JP H0229218 Y2 JPH0229218 Y2 JP H0229218Y2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- exhaust
- exhaust pipe
- connection hole
- pipe connection
- 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
- 239000000463 material Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing 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】
（産業上の利用分野）
本考案は、車両用エンジンの溶接によつて組立
てる排気マニホルドにおけるヘツド側フランジに
関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a head side flange in an exhaust manifold assembled by welding for a vehicle engine.
（従来の技術）
組立式の排気マニホルドは、例えば特開昭61−
250326、同61−261617等によつて知られており、
鋳造品に比べて軽いため車両の軽量化に役立つて
いる。この排気マニホルドでは、排気管は管材を
曲げ加工して作り、排気集合室は板材を絞り加工
して作られるが、シリンダヘツドに連結するため
のフランジには、熱歪に耐えてシリンダヘツドの
取付面との間の気密が維持できるように、剛性の
高い鍛造品が用いられていた。フランジとして
は、このほかに厚手の板材からフランジ板を打抜
き、これに排気管接続穴を打抜いたものも知られ
ている。(Prior art) A prefabricated exhaust manifold is, for example, disclosed in Japanese Patent Application Laid-open No. 1983-
250326, 61-261617, etc.,
Since it is lighter than cast products, it helps reduce the weight of vehicles. In this exhaust manifold, the exhaust pipe is made by bending pipe material, and the exhaust collection chamber is made by drawing plate material, but the flange for connecting to the cylinder head is designed to withstand thermal distortion and is attached to the cylinder head. Highly rigid forged products were used to maintain airtightness between the surfaces. Another known flange is one in which a flange plate is punched out of a thick plate material and an exhaust pipe connection hole is punched into the flange plate.
（考案が解決しようとする問題点）
前記の技術において、鍛造によるものは大がか
りな鍛造設備と切削加工を要してコスト高にな
り、厚手の板材から打抜くものは、製造は容易で
あるが重いという難点がある。(Problems to be solved by the invention) Among the above techniques, those using forging require large-scale forging equipment and cutting processing, resulting in high costs, while those punched from thick plate materials are easy to manufacture, but It has the disadvantage of being heavy.
（問題点を解決するための手段）
本考案は、軽量でありながら剛性と気密性が高
いフランジをプレス加工により容易に作れるよう
にしたもので、その手段は、板体に複数個の排気
管接続穴とシリンダヘツドへの取付穴を設けた排
気マニホルド用ヘツド側フランジにおいて、板体
の外周及び排気管接続穴に、排気流出側に突出す
る縦フランジを連設し、排気管接続穴の縦フラン
ジの基部に、取付面側に突出し排気管接続穴を囲
む環状突条を設けたことを特徴とする。(Means for solving the problem) The present invention is a lightweight flange with high rigidity and airtightness that can be easily made by press working. In the head-side flange for the exhaust manifold, which has a connection hole and a mounting hole for the cylinder head, a vertical flange that protrudes toward the exhaust outlet side is connected to the outer periphery of the plate and the exhaust pipe connection hole, and the vertical flange of the exhaust pipe connection hole A feature is that the base of the flange is provided with an annular protrusion that protrudes toward the mounting surface and surrounds the exhaust pipe connection hole.
（作用）
エンジンから排出される排気でフランジが加熱
されても、内外周の縦フランジにより補強されて
いるので熱歪が小さく、かつ取付面の環状突条が
ガスケツトを強圧するので、取付面の気密性が高
い。(Function) Even if the flange is heated by the exhaust gas discharged from the engine, thermal distortion is small because it is reinforced by the vertical flanges on the inner and outer circumferences, and the annular protrusion on the mounting surface presses the gasket strongly, so the mounting surface Highly airtight.
（実施例）
以下本考案の実施例を図面によつて説明する。
第１図、第２図において１は本考案のフランジ
で、普通鋼、ステンレス鋼等の板体をプレス加工
して作られ、４個の排気管接続穴２を備えてい
る。該接続穴２の周囲には、排気流出側を向く縦
フランジ３がバーリング加工によつて形成され、
かつ該フランジ３の基部には、接続穴２を囲んで
取付面４側に突出する環状突条５が、いわゆる紐
出し加工によつて形成されている。(Example) Examples of the present invention will be described below with reference to the drawings.
In FIGS. 1 and 2, reference numeral 1 designates the flange of the present invention, which is made by pressing a plate of ordinary steel, stainless steel, etc., and is provided with four exhaust pipe connection holes 2. A vertical flange 3 facing the exhaust outlet side is formed around the connection hole 2 by burring.
At the base of the flange 3, an annular protrusion 5 that surrounds the connection hole 2 and protrudes toward the mounting surface 4 is formed by a so-called stringing process.
更に、フランジ１の外周には縦フランジ６が絞
り加工によつて設けられ、その内側には多数の取
付穴７が穿設されている。 Further, a vertical flange 6 is provided on the outer periphery of the flange 1 by drawing, and a large number of mounting holes 7 are bored inside the vertical flange 6.
第３図はこのフランジ１を取付けた排気マニホ
ルドで、排気管１１、排気集合室１２、触媒ケー
ス１３等を備え、各排気管１１の上流端を排気管
接続穴２に挿入して溶接部１４によつてフランジ
１を固定しており、その取付面４に第２図に示す
ようにガスケツトＡを重ねて取付穴７を通るボル
トでシリンダブロツクに固定される。 FIG. 3 shows an exhaust manifold to which this flange 1 is attached, and is equipped with an exhaust pipe 11, an exhaust gas collecting chamber 12, a catalyst case 13, etc., and the upstream end of each exhaust pipe 11 is inserted into the exhaust pipe connection hole 2, and the welded part 14 is inserted into the exhaust pipe connection hole 2. The flange 1 is fixed by the flange 1, and the gasket A is placed on the mounting surface 4 of the flange 1 as shown in FIG. 2, and is fixed to the cylinder block with bolts passing through the mounting holes 7.
以上の構成により、このフランジ１は、縦フラ
ンジ３，６によつて補強されるので、排気によつ
て加熱されても熱歪は小さく、特に接続穴２の周
囲は、縦フランジ３に加えて環状の突条５が形成
されているため剛性が高く変形しにくい。 With the above configuration, the flange 1 is reinforced by the vertical flanges 3 and 6, so even if it is heated by exhaust air, the thermal strain is small, and especially around the connection hole 2, the flange 1 is reinforced by the vertical flanges 3 and 6. Since the annular protrusion 5 is formed, the rigidity is high and it is difficult to deform.
この排気マニホルドをエンジン本体に固定する
と、環状突条５によつてガスケツトＡに排気通路
を囲んで強い圧迫が加えられ、取付面４又はシリ
ンダブロツクとガスケツトＡの間から漏洩しよう
とする排気は遮断される。 When this exhaust manifold is fixed to the engine body, the annular protrusion 5 applies strong pressure to the gasket A surrounding the exhaust passage, blocking the exhaust that attempts to leak from the mounting surface 4 or between the cylinder block and gasket A. be done.
（考案の効果）
以上のように、本考案のフランジは、薄い板材
から形成されるから、軽く製造も容易である。そ
して、内外の縦フランジと環状突条によつて剛性
を高めて熱歪を阻止し、かつ環状突条によつてシ
ール圧力を増大しているので、ガス洩れが生じる
おそれはない。(Effects of the invention) As described above, since the flange of the invention is formed from a thin plate material, it is light and easy to manufacture. Furthermore, since the inner and outer vertical flanges and the annular ridges increase the rigidity to prevent thermal distortion, and the annular ridges increase the sealing pressure, there is no risk of gas leakage.
第１図は本考案の実施例の斜面図、第２図は第
１図の−線断面図、第３図は排気マニホルド
の側面図である。
２……排気管接続穴、３，６……縦フランジ、
５……環状突条。
FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a side view of the exhaust manifold. 2...Exhaust pipe connection hole, 3,6...Vertical flange,
5... Annular protrusion.
Claims (1)
への取付穴を設けた排気マニホルド用ヘツド側フ
ランジにおいて、板体の外周及び排気管接続穴
に、排気流出側へ突出する縦フランジを連設し、
排気管接続穴の縦フランジの基部に、取付面側に
突出し排気管接続穴を囲む環状突条を設けたこと
を特徴とする、排気マニホルド用ヘツド側フラン
ジ。 In the head side flange for an exhaust manifold, which has multiple exhaust pipe connection holes and cylinder head mounting holes on the plate, a vertical flange that protrudes toward the exhaust outflow side is connected to the outer periphery of the plate and the exhaust pipe connection hole. death,
A head-side flange for an exhaust manifold, characterized in that the base of the vertical flange of the exhaust pipe connection hole is provided with an annular protrusion that protrudes toward the mounting surface and surrounds the exhaust pipe connection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063521U JPH0229218Y2 (en) | 1987-04-28 | 1987-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063521U JPH0229218Y2 (en) | 1987-04-28 | 1987-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63170522U JPS63170522U (en) | 1988-11-07 |
| JPH0229218Y2 true JPH0229218Y2 (en) | 1990-08-06 |
Family
ID=30898827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987063521U Expired JPH0229218Y2 (en) | 1987-04-28 | 1987-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0229218Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237657Y2 (en) * | 1981-05-06 | 1987-09-25 |
-
1987
- 1987-04-28 JP JP1987063521U patent/JPH0229218Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63170522U (en) | 1988-11-07 |
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