JPH08121273A - Intake manifold - Google Patents
Intake manifoldInfo
- Publication number
- JPH08121273A JPH08121273A JP29778694A JP29778694A JPH08121273A JP H08121273 A JPH08121273 A JP H08121273A JP 29778694 A JP29778694 A JP 29778694A JP 29778694 A JP29778694 A JP 29778694A JP H08121273 A JPH08121273 A JP H08121273A
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- surge tank
- intake manifold
- flange
- large diameter
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関の吸気マニホ
ルドに関するものであり、特に、熱歪みが発生しにくい
吸気マニホルドに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake manifold for an internal combustion engine, and more particularly to an intake manifold in which thermal strain is unlikely to occur.
【０００２】[0002]
【従来の技術】熱歪みの発生を防止した従来の吸気マニ
ホルドとして、特開平５−２３１２５３号公報に記載さ
れたようなものがある。2. Description of the Related Art As a conventional intake manifold that prevents the occurrence of thermal distortion, there is one described in Japanese Patent Application Laid-Open No. 5-231253.
【０００３】上記吸気マニホルドは、アルミニウム展伸
材製部品とアルミニウム鋳物製部品とを備えた吸気マニ
ホルドであって、アルミニウム鋳物製部品がＡｌ−Ｓｉ
系鋳造合金で形成され、アルミニウム展伸材製部品とア
ルミニウム鋳物製部品とが、Ｚｎ：５０〜８０重量％、
およびＳｉ：０．２〜１２重量％含み、残部Ａｌおよび
不可避不純物よりなるろう材でろう付けされて形成され
ている。The intake manifold is an intake manifold provided with an aluminum wrought product part and an aluminum casting part, and the aluminum casting part is an Al-Si.
Made of wrought aluminum alloy, and the aluminum wrought product part and the aluminum cast part are made of Zn: 50 to 80% by weight,
And Si: 0.2 to 12% by weight, and is brazed with a brazing material composed of balance Al and unavoidable impurities.
【０００４】[0004]
【発明が解決しようとする課題】上記吸気マニホルドの
ろう付けは、従来のろう付け温度（６００℃程度）より
低温（５００℃程度）で行われるため、上記吸気マニホ
ルドは従来のろう付け温度でろう付けされた吸気マニホ
ルドに比べて熱歪みが少ない。Since the intake manifold is brazed at a temperature (about 500 ° C.) lower than the conventional brazing temperature (about 600 ° C.), the intake manifold will have the conventional brazing temperature. Less thermal distortion than the attached intake manifold.
【０００５】しかし、上記吸気マニホルドにおいても熱
歪みが依然として発生し、しかもろう付けに際して同種
材料間の接合しかできないため、分岐管として高価なア
ルミニウム展伸材製部品を用いざるを得ないという問題
点がある。However, thermal distortion still occurs in the intake manifold, and since only similar materials can be joined together during brazing, there is no choice but to use expensive wrought aluminum parts as branch pipes. There is.
【０００６】本発明は、かかる問題点を解消するために
なされたものであり、熱歪みが少なく安価な吸気マニホ
ルドを提供することを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide an intake manifold which has less thermal strain and is inexpensive.
【０００７】[0007]
【課題を解決するための手段】本発明の吸気マニホルド
は、内燃機関の吸気ポートに連通する分岐管の一端部を
該分岐管と別体に形成されたフランジの取付孔に嵌入
し、かつ該分岐管の他端部を該分岐管と別体に形成され
たサージタンクの取付孔に嵌入した内燃機関の吸気マニ
ホルドにおいて、該フランジと該サージタンクとをアル
ミニウム鋳物から形成し、該分岐管を鉄パイプから形成
し、該分岐管と該フランジとを接着剤を介して接合する
とともに、該分岐管と該サージタンクとを接着剤を介し
て接合したことを特徴とする。In the intake manifold of the present invention, one end of a branch pipe communicating with an intake port of an internal combustion engine is fitted into a mounting hole of a flange formed separately from the branch pipe, and In an intake manifold of an internal combustion engine in which the other end of the branch pipe is fitted into a mounting hole of a surge tank formed separately from the branch pipe, the flange and the surge tank are formed of aluminum casting, and the branch pipe is formed. It is formed of an iron pipe, and the branch pipe and the flange are joined with an adhesive agent, and the branch pipe and the surge tank are joined with an adhesive agent.
【０００８】[0008]
【作用】鉄パイプ製分岐管とアルミニウム鋳物製フラン
ジとを接着剤を介して接合するとともに、該鉄パイプ製
分岐管とアルミニウム鋳物製サージタンクとを接着剤を
介して接合しているので、該分岐管と該フランジ及び該
サージタンクとが強固かつ気密に接合され、しかも、製
造された吸気マニホルドに熱歪みが殆ど発生しない。Since the branch pipe made of iron pipe and the flange made of aluminum casting are joined together with an adhesive agent, and the branch pipe made of iron pipe and the surge tank made of aluminum casting are joined together with an adhesive agent, The branch pipe, the flange, and the surge tank are firmly and airtightly joined, and almost no thermal strain occurs in the manufactured intake manifold.
【０００９】[0009]
【実施例】本発明の実施例を図１〜３に基づいて説明す
る。防錆処理された４本の円筒状の鉄パイプ製分岐管１
の一端部２が、アルミニウム鋳物（例えば、ＪＩＳ Ａ
Ｃ２Ｂ、ＡＣ４Ｃ等のＡｌ−Ｓｉ系合金）製フランジ３
の４個の取付孔４にそれぞれ嵌入され、分岐管１の他端
部５が、アルミニウム鋳物（例えば、ＪＩＳ ＡＣ２
Ｂ、ＡＣ４Ｃ等のＡｌ−Ｓｉ系合金）製サージタンク６
の４個の取付孔７にそれぞれ嵌入されている。分岐管１
と取付孔４，７とが熱硬化性エポキシ樹脂系の接着剤８
を介してそれぞれ接合され、分岐管１とフランジ３及び
サージタンク６とが強固かつ気密に接合されている。EXAMPLE An example of the present invention will be described with reference to FIGS. Corrosion-proof 4 cylindrical iron pipe branch pipes 1
One end 2 of the aluminum casting (for example, JIS A
Al-Si alloy such as C2B, AC4C) flange 3
Of the branch pipe 1, and the other end portion 5 of the branch pipe 1 is made of aluminum casting (for example, JIS AC2
B, AC4C, etc. Al-Si alloy) surge tank 6
Are fitted in the four mounting holes 7. Branch pipe 1
And mounting holes 4 and 7 are thermosetting epoxy resin adhesive 8
The branch pipe 1, the flange 3 and the surge tank 6 are joined firmly and airtightly.
【００１０】分岐管１とサージタンク６との接合方法
は、分岐管１とフランジ３との接合方法と同じであるた
め、その接合方法を分岐管１とサージタンク６とを接合
する場合を例に説明する。Since the joining method of the branch pipe 1 and the surge tank 6 is the same as the joining method of the branch pipe 1 and the flange 3, the joining method is an example of joining the branch pipe 1 and the surge tank 6. Explained.
【００１１】図２に示すように、サージタンク６の取付
孔７は、大径部９、小径部１０及び段部１１を有する円
柱状の貫通孔から形成され、大径部９の直径は、分岐管
１の他端部５の外径より多少大きく形成され、分岐管１
が大径部９内に挿入された際に、分岐管１と大径部９と
の間に円筒状の微小隙間が形成され、分岐管１の他端面
１２が段部１１に係止される様に形成されている。As shown in FIG. 2, the mounting hole 7 of the surge tank 6 is formed of a cylindrical through hole having a large diameter portion 9, a small diameter portion 10 and a step portion 11. The diameter of the large diameter portion 9 is The branch pipe 1 is formed to have a diameter slightly larger than the outer diameter of the other end 5 of the branch pipe 1.
When is inserted in the large diameter portion 9, a cylindrical minute gap is formed between the branch pipe 1 and the large diameter portion 9, and the other end surface 12 of the branch pipe 1 is locked to the step portion 11. Is formed.
【００１２】次に、分岐管１をサージタンク６に取り付
ける方法について説明する。図２に示す様に、未硬化状
態で高粘度（１００万〜２００万ｃｐ）のエポキシ樹脂
系１液熱硬化性の接着剤８を大径部９の円周縁にエア式
ディスペンサにより肉盛り状に環状かつ均一に塗布す
る。次いで、分岐管１を取付孔７の大径部９に挿入する
と、分岐管１の他端部５の外周面と大径部９の内周面と
の間に形成された円筒状の微小隙間及び分岐管１の他端
面１２と段部１１との間に形成された環状の微小隙間に
接着剤８がそれぞれ充填される。分岐管１を大径部９及
び小径部１０と同心的に配設した後、１８０℃で２０分
間加熱保持して接着剤８を硬化させると、図３に示すよ
うに分岐管１とサージタンク６とが強固かつ気密に接合
した吸気マニホルドが得られる。Next, a method of attaching the branch pipe 1 to the surge tank 6 will be described. As shown in FIG. 2, a high viscosity (1 million to 2 million cp) epoxy resin 1-liquid thermosetting adhesive 8 in an uncured state is built up on the circumference of the large diameter portion 9 with an air type dispenser. Apply evenly and circularly to Next, when the branch pipe 1 is inserted into the large-diameter portion 9 of the mounting hole 7, a cylindrical minute gap formed between the outer peripheral surface of the other end 5 of the branch pipe 1 and the inner peripheral surface of the large-diameter portion 9. The adhesive 8 is filled in each of the annular minute gaps formed between the other end surface 12 of the branch pipe 1 and the step portion 11. After arranging the branch pipe 1 concentrically with the large diameter part 9 and the small diameter part 10 and heating and holding at 180 ° C. for 20 minutes to cure the adhesive 8, as shown in FIG. 3, the branch pipe 1 and the surge tank are shown. An intake manifold in which 6 and 6 are firmly and airtightly joined is obtained.
【００１３】上記実施例では、分岐管１を取付孔７の大
径部９内に挿入する際に、大径部９の円周縁に塗布した
高粘度のエポキシ樹脂系１液熱硬化性の接着剤８を大径
部９に引き込むようにして分岐管１の他端部５の外周面
と大径部９の内周面との間に形成された円筒状の微小隙
間および分岐管１の他端面１２と段部１１との間に形成
された環状の微小隙間に接着剤８を充填したが、接着剤
８の充填方法は上記の方法に限らず、予め分岐管１の他
端部５を大径部９内の所定位置に配設した後、分岐管１
と大径部９との間に形成された円筒状の微小隙間内に低
粘度の接着剤を注入し、分岐管１の他端部５の外周面と
取付孔７の大径部９、分岐管１の他端面１２と段部１１
とをそれぞれ接合しても前記実施例と同様の作用効果を
奏する。In the above embodiment, when the branch pipe 1 is inserted into the large-diameter portion 9 of the mounting hole 7, a high-viscosity epoxy resin-based one-liquid thermosetting adhesive applied to the circumference of the large-diameter portion 9 is used. The cylindrical minute gap formed between the outer peripheral surface of the other end portion 5 of the branch pipe 1 and the inner peripheral surface of the large diameter portion 9 so as to draw the agent 8 into the large diameter portion 9 and the branch pipe 1 The adhesive 8 is filled in the annular minute gap formed between the end face 12 and the step portion 11. However, the method of filling the adhesive 8 is not limited to the above-mentioned method, and the other end 5 of the branch pipe 1 may be previously attached. After arranging at a predetermined position in the large diameter portion 9, the branch pipe 1
A low-viscosity adhesive is injected into a cylindrical minute gap formed between the large diameter portion 9 and the large diameter portion 9, and the outer peripheral surface of the other end portion 5 of the branch pipe 1 and the large diameter portion 9 of the mounting hole 7 are branched. The other end surface 12 and the step portion 11 of the pipe 1.
Even if they are respectively joined, the same operational effect as that of the above-mentioned embodiment can be obtained.
【００１４】[0014]
【発明の効果】本発明によれば、分岐管とサージタンク
およびフランジとを接着剤を介してそれぞれ接合するの
で、製造された吸気マニホルドに熱歪みが発生せず、吸
気マニホルドの外観形状も良好であり、しかもろう付け
工程の省略及び安価な鉄製パイプの使用が可能であるた
め、製造コストを低減できる。According to the present invention, since the branch pipe, the surge tank and the flange are respectively joined with an adhesive, no thermal distortion occurs in the manufactured intake manifold, and the appearance shape of the intake manifold is good. Moreover, since the brazing process can be omitted and an inexpensive iron pipe can be used, the manufacturing cost can be reduced.
【図１】本発明に係る実施例の吸気マニホルドの正面図
である。FIG. 1 is a front view of an intake manifold according to an embodiment of the present invention.
【図２】サージタンクに接着剤を塗布した状態を示す要
部断面図である。FIG. 2 is a cross-sectional view of essential parts showing a state in which an adhesive is applied to a surge tank.
【図３】サージタンクに分岐管を接合した状態を示す要
部断面図である。FIG. 3 is a cross-sectional view of essential parts showing a state in which a branch pipe is joined to a surge tank.
１ 分岐管 ３ フランジ ６ サージタンク ８ 接着剤 1 Branch pipe 3 Flange 6 Surge tank 8 Adhesive
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｍ 35/10 ３０１ Ｐ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display area F02M 35/10 301 P
Claims (1)
一端部を該分岐管と別体に形成されたフランジの取付孔
に嵌入し、かつ該分岐管の他端部を該分岐管と別体に形
成されたサージタンクの取付孔に嵌入した内燃機関の吸
気マニホルドにおいて、 該フランジと該サージタンクとをアルミニウム鋳物から
形成し、該分岐管を鉄パイプから形成し、該分岐管と該
フランジとを接着剤を介して接合するとともに、該分岐
管と該サージタンクとを接着剤を介して接合したことを
特徴とする内燃機関の吸気マニホルド。1. A one end of a branch pipe communicating with an intake port of an internal combustion engine is fitted into a mounting hole of a flange formed separately from the branch pipe, and the other end of the branch pipe is connected to the branch pipe. In an intake manifold of an internal combustion engine fitted in a mounting hole of a surge tank formed separately, the flange and the surge tank are formed of aluminum casting, the branch pipe is formed of an iron pipe, and the branch pipe and the An intake manifold for an internal combustion engine, wherein the flange and the surge tank are joined together via an adhesive agent, and the branch pipe and the surge tank are joined together via an adhesive agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29778694A JPH08121273A (en) | 1994-10-25 | 1994-10-25 | Intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29778694A JPH08121273A (en) | 1994-10-25 | 1994-10-25 | Intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08121273A true JPH08121273A (en) | 1996-05-14 |
Family
ID=17851159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29778694A Pending JPH08121273A (en) | 1994-10-25 | 1994-10-25 | Intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08121273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142114A (en) * | 1998-05-30 | 2000-11-07 | Suzuki Motor Corporation | Intake structure of an internal combustion engine |
| US20190093609A1 (en) * | 2017-09-25 | 2019-03-28 | Toyota Jidosha Kabushiki Kaisha | Intake manifold |
-
1994
- 1994-10-25 JP JP29778694A patent/JPH08121273A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142114A (en) * | 1998-05-30 | 2000-11-07 | Suzuki Motor Corporation | Intake structure of an internal combustion engine |
| US20190093609A1 (en) * | 2017-09-25 | 2019-03-28 | Toyota Jidosha Kabushiki Kaisha | Intake manifold |
| US10519902B2 (en) * | 2017-09-25 | 2019-12-31 | Toyota Jidosha Kabushiki Kaisha | Intake manifold |
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