JP3783194B2 - Support structure for exhaust catalyst container - Google Patents

Support structure for exhaust catalyst container Download PDF

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Publication number
JP3783194B2
JP3783194B2 JP10661399A JP10661399A JP3783194B2 JP 3783194 B2 JP3783194 B2 JP 3783194B2 JP 10661399 A JP10661399 A JP 10661399A JP 10661399 A JP10661399 A JP 10661399A JP 3783194 B2 JP3783194 B2 JP 3783194B2
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JP
Japan
Prior art keywords
catalyst container
end side
mounting piece
support structure
exhaust manifold
Prior art date
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Expired - Fee Related
Application number
JP10661399A
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Japanese (ja)
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JP2000297638A (en
Inventor
文夫 片野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aichi Machine Industry Co Ltd
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Aichi Machine Industry Co Ltd
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Priority to JP10661399A priority Critical patent/JP3783194B2/en
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Description

【０００１】
【産業上の利用分野】
この発明は、排気触媒コンテナを支持する支持構造に関するものである。
【０００２】
【従来の技術及びその課題】
従来、図３に示すように、エキゾーストマニホールド２はその上端側をボルト３，３を介し内燃機関本体１に固定されており、エキゾーストマニホールド２の下端側には、排気ガスを浄化するための触媒コンテナ４がボルト等により連結されたものとなり、触媒コンテナ４は、内燃機関本体１に固定されて突出された保持ブラケット５１に固定支持されている。
このような従来構造において、内燃機関本体１の運転時には、高温の排気ガスにより前記エキゾーストマニホールド２が高温となり、エキゾーストマニホールド２は熱膨脹して延びようとするが、上下方向の延びが全て抑制された構造となっているため、エキゾーストマニホールドが膨脹した時に、特にポート部、即ちエキゾーストマニホールド２の上端の内燃機関本体１に対する固定部位に亀裂が発生する恐れがあるという問題点があった。
【０００３】
【課題を解決するための手段】
本発明は上記従来の問題点に鑑み案出したものであって、請求項１は、一端側が内燃機関本体に固定されたエキゾーストマニホールドの他端側に垂下状に連結された触媒コンテナをブラケットを介し支持する構造において、前記ブラケットは、垂下方向を支持する取付片を有し、該取付片は、前記一端側に形成されたフランジ部から連続して垂下状に形成された延出片の下端側に略９０°折曲して前記触媒コンテナ側へ折れ曲がるように形成されてなり、前記触媒コンテナは、前記取付片にスライドブッシュを介して固定されたことである。
また、請求項２は、前記触媒コンテナは、垂下方向に差し込んだボルトにナットを締め付けることで前記取付片に連結され、前記スライドブッシュは、該ボルトの外周に介装されてなることである。
【０００４】
【実施例】
以下、本発明の実施例を図面に基づいて説明する。
図１は、第１実施例の触媒コンテナの支持構造を示す構成図であり、図２は図１の要部拡大断面構成図である。
図において、内燃機関本体１の排気ポート部には固定ボルト３，３を介しエキゾーストマニホールド２の上端側のフランジ部２ａが固定されており、エキゾーストマニホールド２の下端側には触媒コンテナ４がボルト等で連結されているが、この触媒コンテナ４を支持するために、本例では前記フランジ部２ａから連続して垂下状に延出片２ｂが形成され、延出片２ｂの下端側は略９０°折曲して触媒コンテナ４側へ折り曲がる取付片２ｃを形成しており、この取付片２ｃに、触媒コンテナ４をボルト５にナット６を締め付けて連結する際に、スライドブッシュ７がボルト５の外周に介装され、このスライドブッシュ７を介在させた状態でナット６を締め付けて触媒コンテナ４が固定され、触媒コンテナ４は、この延出片２ｂ及び取付片２ｃからなるブラケットＢにより良好に左右方向の揺れが防がれた状態で支持されることとなり、しかも、内燃機関本体１が運転されて高温の排気ガスがエキゾーストマニホールド２内に入り、エキゾーストマニホールド２が高温となって下方側へ膨脹する時に、この膨脹による延びを前記スライドブッシュ７により良好に吸収することができるため、従来のようにエキゾーストマニホールド２の上端側で亀裂が発生する恐れがなく、膨脹時の延びによる弊害を良好にスライドブッシュ７で防止できるように構成されている。
【０００５】
【発明の効果】
本発明は、一端側が内燃機関本体に固定されたエキゾーストマニホールドの他端側に垂下状に連結された触媒コンテナをブラケットを介し支持する構造において、前記ブラケットは、垂下方向を支持する取付片を有し、該取付片は、前記一端側に形成されたフランジ部から連続して垂下状に形成された延出片の下端側に略９０°折曲して前記触媒コンテナ側へ折れ曲がるように形成されてなり、前記触媒コンテナは、前記取付片にスライドブッシュを介して固定されたことにより、触媒コンテナは良好に左右方向の揺れが防がれた状態で支持されるとともに、内燃機関本体が運転されて高温の排気ガスによりエキゾーストマニホールドが高温となって膨脹した時にも、この膨脹による延びを良好にスライドブッシュで吸収できるために、エキゾーストマニホールドに亀裂が発生するような事態を確実に防ぐことができるものとなる。
【図面の簡単な説明】
【図１】 第１実施例の触媒コンテナの支持構造を示す構成図である。
【図２】 図１の要部拡大断面構成図である。
【図３】 従来の支持構造の構成図である。
【符号の説明】
１ 内燃機関本体
２ エキゾーストマニホールド
２ａ フランジ部
２ｂ 延出片
２ｃ 取付片
４ 触媒コンテナ
５ ボルト
６ ナット
７ スライドブッシュ[0001]
[Industrial application fields]
The present invention relates to a support structure for supporting an exhaust catalyst container.
[0002]
[Prior art and problems]
Conventionally, as shown in FIG. 3 , the exhaust manifold 2 has its upper end fixed to the internal combustion engine body 1 via bolts 3 and 3, and a catalyst for purifying exhaust gas is disposed at the lower end of the exhaust manifold 2. The container 4 is connected by bolts or the like, and the catalyst container 4 is fixedly supported by a holding bracket 51 which is fixed to the internal combustion engine body 1 and protrudes.
In such a conventional structure, when the internal combustion engine main body 1 is operated, the exhaust manifold 2 becomes hot due to the high-temperature exhaust gas, and the exhaust manifold 2 tries to expand by thermal expansion, but all the vertical expansion is suppressed. Due to the structure, there is a problem that when the exhaust manifold is expanded, cracks may occur particularly in the port portion, that is, the fixing portion of the upper end of the exhaust manifold 2 with respect to the internal combustion engine body 1.
[0003]
[Means for Solving the Problems]
The present invention has been devised in view of the above-mentioned conventional problems, and claim 1 is characterized in that a catalyst container having one end side connected to the other end side of an exhaust manifold fixed to the internal combustion engine body is suspended. The bracket has a mounting piece for supporting the hanging direction, and the mounting piece is a lower end of an extended piece formed in a hanging shape continuously from the flange portion formed on the one end side. It is formed so as to be bent approximately 90 ° to the side and to be bent toward the catalyst container, and the catalyst container is fixed to the mounting piece via a slide bush.
Further, according to claim 2, wherein the catalyst container is connected to the mounting piece by tightening the nut on Merged bolt vertical downward direction, the slide bush is that it is interposed on the outer periphery of the bolt .
[0004]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a configuration diagram showing a support structure of a catalyst container according to the first embodiment, and FIG. 2 is an enlarged cross-sectional configuration diagram of a main part of FIG.
In the figure, a flange portion 2 a on the upper end side of the exhaust manifold 2 is fixed to the exhaust port portion of the internal combustion engine body 1 via fixing bolts 3 and 3, and a catalyst container 4 is bolted to the lower end side of the exhaust manifold 2. However, in order to support the catalyst container 4, in this example, an extending piece 2b is formed in a hanging shape continuously from the flange portion 2a, and the lower end side of the extending piece 2b is approximately 90 °. An attachment piece 2c that is bent and bent toward the catalyst container 4 is formed. When the catalyst container 4 is connected to the bolt 5 by tightening the nut 6 to the attachment piece 2c, the slide bush 7 is connected to the bolt 5. The catalyst container 4 is fixed by tightening the nut 6 with the slide bush 7 interposed, and the catalyst container 4 includes the extension piece 2b and the attachment piece 2c. The bracket B is supported in a state in which the vibration in the left-right direction is well prevented, and the internal combustion engine body 1 is operated so that high-temperature exhaust gas enters the exhaust manifold 2, and the exhaust manifold 2 is Since the expansion due to the expansion can be satisfactorily absorbed by the slide bush 7 when it expands downward due to a high temperature, there is no risk of cracks occurring on the upper end side of the exhaust manifold 2 as in the prior art. The slide bush 7 can satisfactorily prevent the adverse effects caused by the extension of time.
[0005]
【The invention's effect】
The present invention provides a structure in which a catalyst container connected in a hanging manner to the other end side of an exhaust manifold fixed at one end side to an internal combustion engine body is supported via a bracket, and the bracket has a mounting piece for supporting a hanging direction. The mounting piece is formed so as to be bent approximately 90 ° to the lower end side of the extending piece continuously formed in a hanging shape from the flange portion formed on the one end side and bend to the catalyst container side. The catalyst container is fixed to the mounting piece via a slide bush, so that the catalyst container is well supported in a state in which left-right shaking is prevented and the internal combustion engine body is operated. Even when the exhaust manifold expands to a high temperature due to high-temperature exhaust gas, the expansion due to this expansion can be absorbed well by the slide bush. Cracking is what can be reliably prevented a situation to occur in over strike manifold.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a support structure of a catalyst container according to a first embodiment.
FIG. 2 is an enlarged cross-sectional configuration diagram of a main part of FIG.
FIG. 3 is a configuration diagram of a conventional support structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Internal combustion engine main body 2 Exhaust manifold 2a Flange part 2b Extension piece 2c Mounting piece 4 Catalyst container 5 Bolt 6 Nut 7 Slide bush

Claims (2)

一端側が内燃機関本体に固定されたエキゾーストマニホールドの他端側に垂下状に連結された触媒コンテナをブラケットを介し支持する構造において、
前記ブラケットは、垂下方向を支持する取付片を有し、該取付片は、前記一端側に形成されたフランジ部から連続して垂下状に形成された延出片の下端側に略９０°折曲して前記触媒コンテナ側へ折れ曲がるように形成されてなり、
前記触媒コンテナは、前記取付片にスライドブッシュを介して固定されたことを特徴とする排気触媒コンテナの支持構造。In the structure of supporting the catalyst container connected in a hanging manner to the other end side of the exhaust manifold fixed at one end side to the internal combustion engine body via a bracket,
The bracket has a mounting piece that supports a hanging direction, and the mounting piece is folded by approximately 90 ° on a lower end side of an extending piece formed in a hanging shape continuously from a flange portion formed on the one end side. It is formed to be bent and bent toward the catalyst container side ,
An exhaust catalyst container support structure, wherein the catalyst container is fixed to the mounting piece via a slide bush. 前記触媒コンテナは、垂下方向に差し込んだボルトにナットを締め付けることで前記取付片に連結され、
前記スライドブッシュは、該ボルトの外周に介装されてなる請求項１に記載の排気触媒コンテナの支持構造。The catalyst container is connected to the mounting piece by tightening the nut on Merged bolt vertical downward direction,
The support structure for an exhaust catalyst container according to claim 1, wherein the slide bush is interposed on an outer periphery of the bolt.
JP10661399A 1999-04-14 1999-04-14 Support structure for exhaust catalyst container Expired - Fee Related JP3783194B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10661399A JP3783194B2 (en) 1999-04-14 1999-04-14 Support structure for exhaust catalyst container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10661399A JP3783194B2 (en) 1999-04-14 1999-04-14 Support structure for exhaust catalyst container

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JP2000297638A JP2000297638A (en) 2000-10-24
JP3783194B2 true JP3783194B2 (en) 2006-06-07

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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030053725A (en) * 2001-12-22 2003-07-02 재단법인 포항산업과학연구원 Two-point clamped bracket to prevent the fracture of exhaust-manifold
KR100501448B1 (en) * 2002-12-10 2005-07-18 현대자동차주식회사 Stay for catalyst
ES2393489T3 (en) 2004-07-20 2012-12-21 Scambia Industrial Developments Ag Vibration isolator
JP2007016724A (en) * 2005-07-08 2007-01-25 Honda Motor Co Ltd Lift-variable valve gear of internal combustion engine
FR2898637B1 (en) * 2006-03-16 2011-10-28 Renault Sas DEVICE FOR MAINTAINING DEPOLLUTION MEMBER
KR100916402B1 (en) 2007-11-26 2009-09-07 기아자동차주식회사 Soft stay device of exhast system
KR100962808B1 (en) 2008-08-12 2010-06-09 현대자동차주식회사 Exhaust gas device in vehicle
US8297048B2 (en) * 2008-10-02 2012-10-30 Cummins Inc. Apparatus and method for mounting a close-coupled catalyst
JP5561944B2 (en) * 2009-03-11 2014-07-30 ヤンマー株式会社 Combine
JP2010209813A (en) * 2009-03-11 2010-09-24 Yanmar Co Ltd Combine harvester
DE102010010397A1 (en) * 2010-03-05 2011-09-08 GM Global Technology Operations LLC , (n. d. Ges. d. Staates Delaware) Catalyst mounting for an internal combustion engine
JP5769299B2 (en) * 2011-07-08 2015-08-26 ヤンマー株式会社 Engine equipment
CN102392726A (en) * 2011-11-30 2012-03-28 重庆长安汽车股份有限公司 Reinforced member for longitudinally-arranged engine exhaust manifolds
KR101846860B1 (en) 2012-05-30 2018-04-09 현대자동차 주식회사 Exhaust gas device for vehicle

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