JP2005113910A - Manifold with cavity portion - Google Patents

Manifold with cavity portion Download PDF

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Publication number
JP2005113910A
JP2005113910A JP2004270724A JP2004270724A JP2005113910A JP 2005113910 A JP2005113910 A JP 2005113910A JP 2004270724 A JP2004270724 A JP 2004270724A JP 2004270724 A JP2004270724 A JP 2004270724A JP 2005113910 A JP2005113910 A JP 2005113910A
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Prior art keywords
manifold
shell
exhaust gas
gap
shells
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Japanese (ja)
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Rainer Diez
ディーツ ライナー
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Friedrich Boysen GmbH and Co KG
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Friedrich Boysen GmbH and Co KG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/02—Corrosion resistive metals
    • F01N2530/04—Steel alloys, e.g. stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manifold with a cavity portion, advantageous in manufacture and capable of observing exhaust gas regulations. <P>SOLUTION: The manifold connects an exhaust gas outlet of an internal combustion engine such as an automobile engine, in particular, to an exhaust gas intake of an exhaust gas system. It comprises an inside portion 1 having a plurality of exhaust gas guide parts 2, 3, 4 fitted to one another in a sliding manner for reduced manufacturing cost, an outside portion 5 for encircling the inside portion 1 with air tightness, and the cavity portion 6 formed between the inside portion 1 and the outside portion 5. At least some of the exhaust gas guide parts 2, 3, 4 of the inside portion 1 are formed by shells 2a, 2b, 3a, 3b, 4a, 4b which are mutually joined with folds at the side edges. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は特に自動車エンジン等の内燃機関における排気ガス出口を排気ガスシステムの排気ガス取り入れ口に結合するマニホールドに係り、特にすべり嵌めにより互いに嵌め合う複数個の排気ガス案内部を有する内側部と、内側部を包囲するとともに気密にされた外側部と、内側部と外側部との間の空隙部と、を有する空隙部を備えたマニホールドに関する。   The present invention particularly relates to a manifold that couples an exhaust gas outlet in an internal combustion engine such as an automobile engine to an exhaust gas intake port of an exhaust gas system, and in particular, an inner portion having a plurality of exhaust gas guide portions that are fitted together by a slip fit; The present invention relates to a manifold including a void portion that surrounds an inner portion and is airtight, and a void portion between the inner portion and the outer portion.

空隙部を備えたマニホールドの製造には種々の可能性がある。パイプ曲げ法は常道的であり、パイプは内部高圧成型により特に高度な正確性を持って製造することができる。しかしながら、このような製造方法は、比較的コスト高を招来する。他方、年々厳しくなる排気ガス規制に従うために、マニホールドは外部へガスが絶対的に漏洩しないように製造することが必要になる。   There are various possibilities for the production of a manifold with voids. The pipe bending method is conventional, and the pipe can be manufactured with a particularly high degree of accuracy by internal high-pressure molding. However, such a manufacturing method is relatively expensive. On the other hand, in order to comply with exhaust gas regulations that are becoming stricter year by year, it is necessary to manufacture the manifold so that no gas leaks to the outside.

本発明の底流にある目的は、製造に有利である一方、排気ガス規制を守ることができる前記種類の空隙部を備えたマニホールドを提供することである。   The object underlying the present invention is to provide a manifold with a void of the kind described above that is advantageous for manufacturing while still complying with exhaust gas regulations.

この目的は、内側部の少なくとも幾つかの排気ガス案内部が、お互いの辺縁（rim）での一般的な形状加工（reshaping）、とりわけ、折り曲げによって結合することのできるシェルで形成することで達成される。   The purpose is that at least some exhaust gas guides on the inner side are formed of shells that can be joined together by general reshaping at the edges of each other, in particular by bending. Achieved.

シェルで内側部を造る排気ガス案内部の設計は、特に製造においてコスト好適である。シェルはコスト好適に絞り加工（drawn）ができる一方、お互いの辺縁での一般的な形状加工、とりわけ、折り曲げによって結合することは、製造において特に好適である。特にターボチャージャーのための排気マニホールドを製造するには、溶接結合に関して溶接飛散のないことが必要であり、なかんずく大きなコスト有利をもたらす。溶接では高価なレーザーやアーク溶接技術のみが考えられる。本発明によるシェルの形状加工による結合は溶接飛散のない状態で行うことができる一方、少ない努力で実行することができる。マニホールドの外側部が絶対的にガス気密に構成されるので、内側部のガス気密性は低くても問題は生じず、従って、シェル間の結合の漏洩に関する強度は十分である。   The design of the exhaust gas guide which forms the inner part with a shell is particularly cost effective in manufacturing. While the shells can be drawn in a cost-effective manner, the general shape processing at the edges of each other, especially joining by folding, is particularly suitable in manufacturing. In particular, the production of an exhaust manifold for a turbocharger requires that there is no weld splattering with respect to the weld joint, which brings a great cost advantage, among other things. Only expensive laser and arc welding techniques can be considered for welding. The connection by shell shaping according to the invention can be performed without welding splashes, while it can be performed with little effort. Since the outer part of the manifold is configured to be absolutely gas-tight, there is no problem even if the gas-tightness of the inner part is low, and therefore the strength with respect to leakage of the coupling between the shells is sufficient.

さらなるコスト節約は、外側部がまたシェルで構成されていることにある。外側部はまたコスト好適に製造することができるからである。マニホールドのアセンブリーはより一層簡素化できるからである。   A further cost saving is that the outer part is also composed of a shell. This is because the outer portion can also be manufactured in a cost-effective manner. This is because the assembly of the manifold can be further simplified.

内側部や外側部のシェル用の素材としては特に板金が考えられる。内側部の板金の肉厚は、シェルの折り曲げ結合には溶接に比べて最小肉厚が要求されないので、比較的に薄くても良い。したがって、異種の鋼、例えばオーステナイト鋼を用いても良い。   In particular, sheet metal is conceivable as a material for the inner and outer shells. The wall thickness of the inner sheet metal may be relatively thin because the minimum thickness is not required for the bending connection of the shell as compared with welding. Therefore, different types of steel, such as austenitic steel, may be used.

薄肉の素材から造る排気ガス案内部の十分な強度を得るために、内側部のシェルはビードを設けることができる。外側部のシェルもまた強度を持たせるためにビードを設けることができる。   In order to obtain sufficient strength of the exhaust gas guide made from a thin material, the inner shell can be provided with beads. The outer shell can also be provided with a bead for strength.

外側部のシェルは好ましくは互いに溶接することで高度の気密性が得られる。溶接結合は外側で行われるので、排気マニホールドの内側を汚損する危惧はない。したがって、より一層のコスト好適な溶接を使用できる。   The outer shells are preferably welded together to provide a high degree of hermeticity. Since the weld connection is made on the outside, there is no risk of fouling the inside of the exhaust manifold. Therefore, a further cost-optimized welding can be used.

使用時に内側部のシェルが変位するのを防止するために、内側部は個々のスポット溶接で互いに止め結合してもよい。変位を信頼性高く防ぐために個々的なスポット溶接のみが要求されるので、コスト上昇を招来することのない簡単なスポット溶接が用いられる。代替又は追加的には、シェルは一体として成型してもよい。   In order to prevent the inner shell from displacing in use, the inner portions may be joined together by individual spot welding. Since only individual spot welding is required to reliably prevent displacement, simple spot welding is used without incurring a cost increase. Alternatively or additionally, the shell may be molded as a single piece.

外側部は好ましくは二つのシェル半部からなる。排気ガス案内部は好ましくは同様にそれぞれ二つのシェル半部からなる。したがって、とりわけ好適な製造とアセンブリーが可能になる。内側部と外側部の分割面は互いにほぼ直角にするのがよい。   The outer part preferably consists of two shell halves. The exhaust gas guides preferably likewise consist of two shell halves, respectively. Thus, a particularly suitable production and assembly is possible. The dividing surfaces of the inner part and the outer part are preferably substantially perpendicular to each other.

本発明による空隙部の実施例は、マニホールドが特に溶接飛散のないコスト好適に製造できるから、ターボチャージャーを備えた内燃機関にとりわけ有益である。   The embodiment of the air gap according to the present invention is particularly useful for an internal combustion engine equipped with a turbocharger, since the manifold can be manufactured in a cost-effective manner, especially without welding scattering.

本発明による空隙部を備えたマニホールドの製造は、好ましくは、排気ガス案内部の一部を形成する内側部のそれぞれのシェルがまず初めに互いに所望のすべり嵌めとなるように嵌め合わされ、ついで、排気ガス案内部の他部を形成する内側部のそれぞれのシェルが同様にして互いに所望のすべり嵌めとなるように嵌め合わされた後、お互いの辺縁での形状加工、特に折り曲げることにより互いにシェルが結合することで排気ガス案内部が形成される。   Manufacture of a manifold with a gap according to the invention is preferably carried out in such a way that the respective shells of the inner part forming part of the exhaust gas guide are first fitted together in a desired slip fit, After the respective shells of the inner part forming the other part of the exhaust gas guide part are similarly fitted to each other so as to have a desired slip fit, the shells are mutually connected by shape processing at the edges of each other, in particular by bending. By connecting, an exhaust gas guide part is formed.

本発明によれば、例えば、最初に二つのシェルをそれぞれ組み合わせ、このようにして組み合わせた排気ガス案内部を互いに嵌合させるのではなくて、むしろ、内側部のそれぞれのシェル半部の互いの嵌合は分割したまま行った後、内側部の全ての排気ガス案内部の二つのシェル半部を同時に互いに結合する。このやり方によれば、嵌合域において、排気ガス案内部の断面がお互いに合致することが確実になる。したがって、排気ガス案内部の相互結合には問題が生じることなく、また、運転中に、個々の排気ガス案内部が互いに支障のない変位をし得ることが確実となる。   According to the present invention, for example, instead of first combining the two shells and fitting the exhaust gas guides thus combined together, the inner shell halves of each shell half of each other After the fitting is performed while being divided, the two shell halves of all the exhaust gas guides on the inner side are simultaneously coupled to each other. This method ensures that the cross sections of the exhaust gas guides match each other in the fitting area. Therefore, there is no problem in the mutual coupling of the exhaust gas guides, and it is ensured that the individual exhaust gas guides can be displaced without any trouble during operation.

相互に嵌合させたシェルの辺縁での一般的な形状加工、特に折り曲げによる結合をした後、個々の排気ガス案内部のシェルは、必要ならば、スポット溶接で互いに止め結合する。その後、内側部は外側部に挿入されてこれらは溶接で気密に結合される。   After general shaping at the edges of the mutually fitted shells, in particular by joining by bending, the shells of the individual exhaust gas guides are joined together by spot welding if necessary. Thereafter, the inner part is inserted into the outer part and these are hermetically joined by welding.

内側部のシェルは好ましくは、特に深絞りによる板金で造られる。シェルの強度を増大させるために、好ましくはビードが形成される。各排気ガス案内部毎に二つのシェル半部が特別に造られて互いに他のシェル半部と同時に結合される。   The inner shell is preferably made of sheet metal, especially by deep drawing. In order to increase the strength of the shell, beads are preferably formed. Two shell halves are specially made for each exhaust gas guide and are connected together with the other shell halves.

本発明の好適実施例が図面に示されており、以下にその説明をする。図示の空隙部を備えたマニホールドは、互いにすべり嵌めとして嵌合した複数個の排気ガス案内部２，３，４を有する内側部１と、内側部１から離間し内側部１を包囲するとともにガス気密にした外側部５を備えている。そのため、内側部１と外側部５の間に空隙部６が形成されて排気マニホールドの断熱効果をもたらす。   A preferred embodiment of the invention is illustrated in the drawings and will be described below. The manifold having the illustrated gap portion includes an inner portion 1 having a plurality of exhaust gas guide portions 2, 3, and 4 that are fitted together as a slip fit, and is spaced from the inner portion 1 and surrounds the inner portion 1 and gas. An airtight outer portion 5 is provided. Therefore, a gap 6 is formed between the inner portion 1 and the outer portion 5 to provide a heat insulating effect of the exhaust manifold.

排気ガス案内部２，３，４は、辺縁側で互いに結合されるシェル半部２ａ,２ｂ、３ａ,３ｂ、４ａ,４ｂからなっている。シェル半部の結合は図４に示すように折り曲げによる。一方のシェル半部３ａの辺縁は他方のシェル半部３ｂの辺縁の周りに曲げられる。ついで、折り曲げ部７は結合の強度を増すために、鎖線で示すように、傾けて配置される。   The exhaust gas guides 2, 3, 4 are formed of shell halves 2a, 2b, 3a, 3b, 4a, 4b that are coupled to each other on the edge side. The shell halves are joined by bending as shown in FIG. The edge of one shell half 3a is bent around the edge of the other shell half 3b. Then, the bent portion 7 is disposed at an inclination as shown by a chain line in order to increase the strength of the connection.

排気ガス案内部２，３，４は、前記したように、すべり嵌めとして互いに嵌合する。そのため、折り曲げ部７は排気ガス案内部２，３の個々の端末の前の個々の端末２’，３’で終端している。したがって、折り曲げ部を有しない部分８が形成され、そこに隣接する排気ガス案内部２，３，４の個々の端末３”，４”が嵌合するように構成される。   As described above, the exhaust gas guide portions 2, 3, and 4 are fitted to each other as a slip fit. Therefore, the bent portion 7 terminates at the individual terminals 2 ′ and 3 ′ before the individual terminals of the exhaust gas guides 2 and 3. Accordingly, a portion 8 that does not have a bent portion is formed, and the individual terminals 3 ″, 4 ″ of the exhaust gas guide portions 2, 3, 4 adjacent thereto are fitted.

排気ガス案内部２の他方の端末２”と外側部５は第１のインテークフランジ９に気密に結合される。第２のインテークフランジ１０は外側部５と排気ガス案内部３の枝管１１の端末１１’に気密に結合される。第３及び第４のインテークフランジ１２，１３は外側部５と一つの固いスリーブ１４，１４’とにそれぞれ結合される。スリーブ１４は排気ガス案内部４の枝管１５にすべり嵌めとして嵌合し、スリーブ１４’は同様に排気ガス案内部４の第２端末４’にすべり嵌めとして嵌合している。   The other terminal 2 ″ of the exhaust gas guide 2 and the outer side 5 are hermetically coupled to the first intake flange 9. The second intake flange 10 is connected to the outer part 5 and the branch pipe 11 of the exhaust gas guide 3. The third and fourth intake flanges 12 and 13 are respectively coupled to the outer portion 5 and one rigid sleeve 14 and 14 ', which are connected to the terminal 11'. The sleeve 14 ′ is similarly fitted as a slip fit to the second end 4 ′ of the exhaust gas guide 4.

排気ガス案内部４は第２の枝管１６を有し、その枝管１６にスリーブ１７がすべり嵌めとして挿入されている。このスリーブ１７と外側部５は出口フランジ１８と気密に結合される。この出口フランジ１８には一般的な排気ガスシステムの連繋パイプが接続される。インテークフランジ９，１０，１２，１３は内燃機関の排気ガス出口に接続される。   The exhaust gas guide 4 has a second branch pipe 16, and a sleeve 17 is inserted into the branch pipe 16 as a slip fit. The sleeve 17 and the outer portion 5 are hermetically coupled to the outlet flange 18. A connecting pipe of a general exhaust gas system is connected to the outlet flange 18. Intake flanges 9, 10, 12, 13 are connected to the exhaust gas outlet of the internal combustion engine.

外側部５も二つのシェル半部５ａ，５ｂを有する。シェル半部５ａ，５ｂの分割面Ｉは内側部１のシェル半部２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂの分割面IIに対してほぼ直角であり、フランジ９，１０，１２，１３の面に対してほぼ平行である。   The outer part 5 also has two shell halves 5a, 5b. The split surface I of the shell halves 5a, 5b is substantially perpendicular to the split surface II of the shell halves 2a, 2b, 3a, 3b, 4a, 4b of the inner part 1, and the flanges 9, 10, 12, 13 It is almost parallel to the surface.

空隙部を備えたマニホールドの製造法については、内側部１の全てのシェル半部２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂと外側部５のシェル半部５ａ，５ｂを作ることから始まる。この過程においては、ビード１９がシェル半部に取り入れられる。そして、内側部１の一方のシェル半部２ａ，３ａ，４ａを所望のすべり嵌めとして互いに嵌合させる。内側部１のシェル半部２ｂ，３ｂ，４ｂも同様にして互いに嵌合させる。スリーブ１４，１４’の挿入後に、互いに嵌合したシェル半部２ａ，３ａ，４ａと２ｂ，３ｂ，４ｂは加工工具に挿入される。その後、全てのシェル半部２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂは対応するシェル半部の辺縁を折り曲げることで互いに結合される。必要ならば、内側部１のシェル半部２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂは個々のスポット溶接で止める結合をしてもよい。この過程では、溶接の飛沫損傷を避けるために、レーザーやＭＡＧ溶接技術を用いる。   The manufacturing method of the manifold provided with the gap portion starts by making all the shell halves 2a, 2b, 3a, 3b, 4a, 4b of the inner portion 1 and the shell halves 5a, 5b of the outer portion 5. In this process, beads 19 are taken into the shell half. And one shell half part 2a, 3a, 4a of the inner side part 1 is mutually fitted as a desired slip fit. Similarly, the shell halves 2b, 3b, 4b of the inner portion 1 are fitted together. After the insertion of the sleeves 14, 14 ', the shell halves 2a, 3a, 4a and 2b, 3b, 4b fitted together are inserted into the processing tool. Thereafter, all shell halves 2a, 2b, 3a, 3b, 4a, 4b are joined together by bending the edges of the corresponding shell halves. If necessary, the shell halves 2a, 2b, 3a, 3b, 4a and 4b of the inner part 1 may be joined by individual spot welding. In this process, laser or MAG welding technology is used to avoid welding splash damage.

したがって、加工工具から取り出して内側部１は完成し、外側部５の下部のシェル半部５ｂに挿入される。内側部１はその後インテークフランジ９，１０，１２，１３と溶接等により気密に結合される。スリーブ１７はその後外側部５の上部のシェル半部５ａとともに出口フランジ１８と溶接で結合される。ついで外側部５の上部のシェル半部５ａは下部のシェル半部５ｂの上に載置され、重なる部分を溶接して気密に結合される。外側部５の二つのシェル半部５ａ，５ｂは溶接継ぎ目が外側になるので通常の溶接法で互いに結合される。   Therefore, the inner part 1 is taken out from the processing tool and is inserted into the shell half part 5 b below the outer part 5. The inner portion 1 is then airtightly coupled to the intake flanges 9, 10, 12, 13 by welding or the like. The sleeve 17 is then joined to the outlet flange 18 by welding together with the upper shell half 5a of the outer part 5. Then, the upper shell half 5a of the outer portion 5 is placed on the lower shell half 5b, and the overlapping portions are welded to be joined in an airtight manner. The two shell halves 5a and 5b of the outer portion 5 are joined to each other by a normal welding method because the weld seam is on the outer side.

前記した製造法により排気ガス案内部２，３，４のすべり嵌めによる連結が達成され、シェル半部から排気ガス案内部２，３，４を造るにもかかわらず、大変強固な嵌め合いが得られる。排気ガス案内部２，３，４は折り曲げた状態で互いに嵌合されることはないから、排気ガス案内部２，３，４の端末２’，３”と３’，４”のお互いの不揃いな円筒つまり断面に起因する問題は生じない。   By the manufacturing method described above, the connection of the exhaust gas guides 2, 3, and 4 is achieved by slip fitting, and despite the fact that the exhaust gas guides 2, 3, and 4 are made from the half of the shell, a very strong fit is obtained. It is done. Since the exhaust gas guides 2, 3 and 4 are not fitted to each other in a bent state, the terminals 2 ', 3 "and 3', 4" of the exhaust gas guides 2, 3 and 4 are uneven. A problem caused by a simple cylinder or cross section does not occur.

図に示しかつ既述した内側部１のすべり嵌めの構造は、排気ガス案内部２，３，４の実質的に障害のない熱膨張を許容し、とりわけ、外側部５に対して内側部１のより大きな熱に由来するより大きな熱膨張を許容する。他方、外側部５は空隙部を備えたマニホールドの高度なガス気密を確実化する。このようにして、ほどよく適切な空隙部を備えたマニホールドを比較的低コストで製造することができる。   The structure of the slip-fit of the inner part 1 shown in the figure and described above allows the thermal expansion of the exhaust gas guides 2, 3, 4 to be substantially unobstructed and, in particular, the inner part 1 relative to the outer part 5. Allows greater thermal expansion from the greater heat of On the other hand, the outer part 5 ensures a high degree of gas tightness of the manifold with the gap. In this way, it is possible to manufacture a manifold with reasonably appropriate voids at a relatively low cost.

外側部の上部のシェル半部を取り除いた本発明による空隙部を備えたマニホールドの平面図である。FIG. 4 is a plan view of a manifold with a void according to the present invention with the shell half at the top of the outer portion removed. 図１のＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line of FIG. 図２のＣ−Ｃ線に沿う断面図である。It is sectional drawing which follows the CC line of FIG. 図３のＢ部の拡大図である。It is an enlarged view of the B section of FIG.

符号の説明Explanation of symbols

１…内側部
２，３，４…排気ガス案内部
２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ…シェル半部
５…外側部
６…空隙部
７…折り曲げ部
９，１０，１２，１３…インテークフランジ
１１…枝管
１４，１４’，１７…スリーブ
１５，１６…枝管
１８…出口フランジ
１９…ビード DESCRIPTION OF SYMBOLS 1 ... Inside part 2, 3, 4 ... Exhaust gas guide part 2a, 2b, 3a, 3b, 4a, 4b ... Shell half part 5 ... Outer part 6 ... Gap part 7 ... Bending part 9, 10, 12, 13 ... Intake Flange 11 ... Branch pipe 14, 14 ', 17 ... Sleeve 15, 16 ... Branch pipe 18 ... Outlet flange 19 ... Bead

Claims (15)

特に自動車エンジン等の内燃機関における排気ガス出口を排気ガスシステムの排気ガス取り入れ口に結合するマニホールドであって、すべり嵌めにより互いに嵌め合う複数個の排気ガス案内部（２，３，４）を有する内側部（１）と、内側部（１）を包囲するとともに気密にされた外側部（５）と、内側部（１）と外側部（５）との間の空隙部（６）と、を有し、かつ、内側部（１）の少なくとも幾つかの排気ガス案内部（２，３，４）は、辺縁で一般的な形状加工、とりわけ折り曲げによって相互に結合するシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）により形成されることを特徴とする空隙部を備えたマニホールド。   In particular, a manifold that couples an exhaust gas outlet in an internal combustion engine such as an automobile engine to an exhaust gas intake of an exhaust gas system, and has a plurality of exhaust gas guides (2, 3, 4) that fit together by a slip fit. An inner part (1), an outer part (5) surrounding the inner part (1) and airtight, and a gap (6) between the inner part (1) and the outer part (5), And at least some of the exhaust gas guides (2, 3, 4) of the inner part (1) have shells (2a, 2b, 3a, 3b, 4a, 4b), a manifold having a gap. 外側部（５）は同様にシェル（５ａ，５ｂ）から構成されることを特徴とする請求項１に記載の空隙部を備えたマニホールド。   2. A manifold with voids according to claim 1, characterized in that the outer part (5) is likewise composed of shells (5a, 5b). 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）及び/又は外側部（５）のシェル（５ａ，５ｂ）は板金からなることを特徴とする請求項１又は請求項２に記載の空隙部を備えたマニホールド。   The shell (2a, 2b, 3a, 3b, 4a, 4b) of the inner part (1) and / or the shell (5a, 5b) of the outer part (5) are made of sheet metal. A manifold provided with the void portion described in 2. 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）及び／又は外側部（５）のシェル（５ａ，５ｂ）はビード（１９）を有することを特徴とする請求項１〜３のいずれかに記載の空隙部を備えたマニホールド。   The shell (2a, 2b, 3a, 3b, 4a, 4b) of the inner part (1) and / or the shell (5a, 5b) of the outer part (5) has a bead (19). A manifold provided with the void portion according to any one of. 外側部（５）のシェル（５ａ，５ｂ）は互いに溶接されていることを特徴とする請求項３又は請求項４に記載の空隙部を備えたマニホールド。   5. A manifold with a gap according to claim 3 or 4, characterized in that the shells (5a, 5b) of the outer part (5) are welded together. 内側部のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）は特に個々のスポット溶接で結合していることを特徴とする請求項１から請求項５のいずれかに記載の空隙部を備えたマニホールド。   The inner shell (2a, 2b, 3a, 3b, 4a, 4b) is provided with a gap according to any one of claims 1 to 5, characterized in that the inner shells are particularly connected by individual spot welding. Manifold. 外側部（５）は二つのシェル半部（５ａ，５ｂ）からなることを特徴とする請求項１から請求項６のいずれかに記載の空隙部を備えたマニホールド。   7. A manifold with a gap according to any one of claims 1 to 6, characterized in that the outer part (5) consists of two shell halves (5a, 5b). 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）はシェル半部からなることを特徴とする請求項１から請求項７のいずれかに記載の空隙部を備えたマニホールド。   The manifold with a gap portion according to any one of claims 1 to 7, wherein the shell (2a, 2b, 3a, 3b, 4a, 4b) of the inner portion (1) is formed of a half of the shell. . 外側部（５）の分割面（Ｉ）は内側部（１）の分割面（II）とほぼ直交することを特徴とする請求項８に記載の空隙部を備えたマニホールド。   The manifold with a gap portion according to claim 8, wherein the dividing surface (I) of the outer portion (5) is substantially orthogonal to the dividing surface (II) of the inner portion (1). ターボチャージャーを備えた内燃機関に用いることを特徴とする請求項１から請求項９のいずれかに記載の空隙部を備えたマニホールド。   The manifold having a gap portion according to any one of claims 1 to 9, wherein the manifold is used for an internal combustion engine having a turbocharger. 請求項１記載の空隙部を備えたマニホールドの製造方法であって、初めに、排気ガス案内部（２，３，４）の一部をそれぞれ形成する内側部（１）のシェル（２ａ，３ａ，４ａ）が互いに所望のすべり嵌めとなるように嵌め合わされ、ついで、排気ガス案内部（２，３，４）の他部をそれぞれ形成する内側部（１）のシェル（２ｂ，３ｂ，４ｂ）が同様にして互いに所望のすべり嵌めとなるように嵌め合わされた後、お互いの辺縁で形状加工、特に折り曲げによって互いにシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）が結合することで排気ガス案内部（２，３，４）が形成されるようにしたことを特徴とする空隙部（６）を備えたマニホールドの製造方法。   2. A method of manufacturing a manifold with a gap according to claim 1, wherein first the shells (2a, 3a) of the inner part (1) forming part of the exhaust gas guides (2, 3, 4), respectively. , 4a) are fitted together so as to have a desired slip fit, and then the shell (2b, 3b, 4b) of the inner part (1) forming the other part of the exhaust gas guide part (2, 3, 4), respectively. Are fitted to each other so as to have a desired slip fit, and then the shells (2a, 2b, 3a, 3b, 4a, 4b) are joined to each other by shape processing at the edges of each other, particularly by bending. A manufacturing method of a manifold provided with a gap (6), wherein a gas guide (2, 3, 4) is formed. 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）は個々のスポット溶接で結合していることを特徴とする請求項１１に記載の空隙部を備えたマニホールドの製造方法。   12. The method of manufacturing a manifold with a gap according to claim 11, wherein the shells (2a, 2b, 3a, 3b, 4a, 4b) of the inner part (1) are joined by individual spot welding. . 外側部（５）のシェル（５ａ，５ｂ）は互いに気密に溶接されることを特徴とする請求項１１又は請求項１２に記載の空隙部を備えたマニホールドの製造方法。   13. The method for manufacturing a manifold with a gap according to claim 11 or 12, wherein the shells (5a, 5b) of the outer portion (5) are welded to each other in an airtight manner. 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）及び／又は外側部（５）のシェル（５ａ，５ｂ）は板金からなることを特徴とする請求項１１から請求項１３のいずれかに記載の空隙部を備えたマニホールドの製造方法。   12. The shell (2a, 2b, 3a, 3b, 4a, 4b) of the inner part (1) and / or the shell (5a, 5b) of the outer part (5) is made of sheet metal. A manufacturing method of a manifold provided with the gap part according to any one of 13. 内側部（１）のシェル（２ａ，２ｂ，３ａ，３ｂ，４ａ，４ｂ）及び／又は外側部（５）のシェル（５ａ，５ｂ）はビード（１９）を有することを特徴とする請求項１１から請求項１４のいずれかに記載の空隙部を備えたマニホールドの製造方法。
12. The shell (2a, 2b, 3a, 3b, 4a, 4b) of the inner part (1) and / or the shell (5a, 5b) of the outer part (5) has a bead (19). The manufacturing method of the manifold provided with the space | gap part in any one of Claim 14.
JP2004270724A 2003-10-07 2004-09-17 Manifold with cavity portion Pending JP2005113910A (en)

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EP1522687B1 (en) 2010-05-05
DE10346552A1 (en) 2005-06-30
EP1522687A2 (en) 2005-04-13
EP1522687A3 (en) 2005-11-30
DE502004011121D1 (en) 2010-06-17
ATE467038T1 (en) 2010-05-15
KR20050033843A (en) 2005-04-13
EP1522687B2 (en) 2014-09-24
US20050072143A1 (en) 2005-04-07

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