JPS6390613A - Catalyst converter - Google Patents
Catalyst converterInfo
- Publication number
- JPS6390613A JPS6390613A JP23586086A JP23586086A JPS6390613A JP S6390613 A JPS6390613 A JP S6390613A JP 23586086 A JP23586086 A JP 23586086A JP 23586086 A JP23586086 A JP 23586086A JP S6390613 A JPS6390613 A JP S6390613A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst carrier
- sealing material
- seal members
- casing
- seal
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 55
- 239000003566 sealing material Substances 0.000 claims description 38
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 6
- 239000010935 stainless steel Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- WABYCCJHARSRBH-UHFFFAOYSA-N metaclazepam Chemical compound C12=CC(Br)=CC=C2N(C)C(COC)CN=C1C1=CC=CC=C1Cl WABYCCJHARSRBH-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
Classifications
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
- F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
- F01N3/2867—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being placed at the front or end face of catalyst body
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、エンジンの排気系に介設して排気ガスを浄
化Ｊるために用いる触ＩＢ、＝１ンパータに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a damper installed in an engine exhaust system and used to purify exhaust gas.
（従来技術）
従来、上述例の触媒コンバータとしては、例えば、実開
昭６０−６１４２８号公報に記載のにうに、還元用モノ
リス触媒担体の後端に、スヂールメッシュ等のリング状
の弾性体を配設して、この弾性体で上）ホのモノリス触
媒担体を弾性保持ずべく構成した触媒コンバータがある
。(Prior Art) Conventionally, the catalytic converter of the above-mentioned example has a ring-shaped elastic body such as a steel mesh arranged at the rear end of a monolithic catalyst carrier for reduction, as described in, for example, Japanese Utility Model Application Publication No. 60-61428. There is a catalytic converter configured to maintain the elasticity of the monolithic catalyst carrier (a) with this elastic body.
しかし、上述の触媒コンバータにおいては、排気ガスの
高熱Ｊ３よびガス圧に起因して弾性体の保持力に劣化が
生じ、モノリス触ＩＲ１ｒ１体のずれが発生１６問題点
をイ１していた。However, in the above-mentioned catalytic converter, the holding force of the elastic body deteriorates due to the high heat J3 of the exhaust gas and the gas pressure, causing the monolithic contact IR1r1 to shift, resulting in 16 problems.
（発明の目的）
この発明は、加熱膨張性を有する２種の特異４Ｉ：シー
ル材を設けることで、触媒担体のずれ発生を防止して、
信頼性の向上を図ることができる触媒コンバータの捉供
を目的とする。(Objective of the invention) This invention prevents the occurrence of displacement of the catalyst carrier by providing two types of unique 4I sealing materials that have heat-expandable properties.
The purpose is to provide support for catalytic converters that can improve reliability.
（発明の構成）
この発明は、ケーシングと、該ケーシング内に収容され
た触媒担体と、該触媒担体の端部に設（）られ、加熱膨
張性を有するシール材と、該シール材と上記触媒担体と
の間に介在され、柔軟性を右づる中間部材と、上記シー
ル材とケーシングとの間に介在され、上記中間部材とで
シール材を囲繞づるプレート部材とを有し、上記シール
材は触媒担体とケーシング間に位置して触媒担体の径方
向へ膨張する第１シール材と、触媒担体後端面に位置し
て触媒担体の軸方向へ膨張する第２シール材とを備えた
触媒コンバータであることを特徴とする。(Structure of the Invention) The present invention includes a casing, a catalyst carrier housed in the casing, a sealing material provided at an end of the catalyst carrier and having heat-expandable properties, and a sealing material and a catalyst carrier. an intermediate member interposed between the carrier and the casing, and a plate member interposed between the sealing material and the casing and surrounding the sealing material with the intermediate member; A catalytic converter comprising a first sealing material located between the catalyst carrier and the casing and expanding in the radial direction of the catalyst carrier, and a second sealing material located on the rear end surface of the catalyst carrier and expanding in the axial direction of the catalyst carrier. characterized by something.
（発明の効’Ｊり
この発明によれば、加熱膨張性を有する上述の二種のシ
ール材を配設しているので、一方の第１シール材では触
媒担体を径方向に保持し、他方の第２シール材で（よ触
媒担体を軸方向に保持して、これら二種のシール材によ
り触媒担体をラジアル方向、スラスト方向から強力に保
持することができるので、該触媒担体のずれ発生がなく
なり、（Ｊｌ気ガスのＩｌ１体周辺部からのリークを防
止して、拮頼牲の向上を図ることができる効果がある。(Effects of the Invention) According to this invention, the above-mentioned two types of sealing materials having heat-expandable properties are provided, so one of the first sealing materials holds the catalyst carrier in the radial direction, and the other sealing material holds the catalyst carrier in the radial direction. The second sealing material holds the catalyst carrier in the axial direction, and these two types of sealing materials can strongly hold the catalyst carrier in the radial and thrust directions, thereby preventing the catalyst carrier from shifting. This has the effect of preventing leakage of Jl gas from the periphery of the Il1 body and improving interdependence.
Ｊ：た、上述の第１シール材および第２シール材を中間
部材とプレート部材とで囲繞して、排気ガスが上述の各
シール材に直接接触しない構造となしているので、これ
ら各シール材の熱劣化おＪ：び飛散を防止して、シール
材による保持力のＨ侍を図ることができる効果がある。J: Also, since the above-mentioned first sealing material and second sealing material are surrounded by an intermediate member and a plate member, and the structure is such that exhaust gas does not come into direct contact with each of the above-mentioned sealing materials, each of these sealing materials This has the effect of preventing thermal deterioration and scattering of the sealant, thereby increasing the holding power of the sealant.
（実施例） この発明の一実施例を以下図面に基づいて訂述りる。(Example) An embodiment of the present invention will be described below based on the drawings.
図面は触媒コンバータを示し、第１図において、ＩＪＩ
気系の中途部に介設されるこの触媒コンバータは、筒状
のキャタリストケース１の内部に還元用のモノリス触媒
担体２と、酸化用のモノリス触媒担体３とを収容してい
る。The drawing shows a catalytic converter, in FIG.
This catalytic converter, which is installed in the middle of the gas system, houses a monolithic catalyst carrier 2 for reduction and a monolithic catalyst carrier 3 for oxidation inside a cylindrical catalyst case 1.
上述の」ニャタリストケース１は入ロ側＝１−ン部４の
前段に排気管接続バイブ５を連れ１１シて、この抽気管
接続バイブ５の端部に入口フランジＧを溶接固定づるど
」しに、出ロ側］−ン部７の後段にも排気管接続バイブ
８を連結して、この（ｊト気管接続バイブ８の端部に出
口フランジ９を溶接固定し、上述の各コーン部４．７内
に拡大部１０．１１を形成している。The above-mentioned Nyatarist case 1 has an exhaust pipe connecting vibe 5 in front of the entrance part 4, and an inlet flange G is welded and fixed to the end of this bleed pipe connecting vibe 5. In addition, an exhaust pipe connecting vibe 8 is also connected to the rear stage of the cone section 7 on the exit side, and an outlet flange 9 is welded and fixed to the end of the trachea connecting vibe 8, and each of the above-mentioned cone sections is connected. An enlarged portion 10.11 is formed within 4.7.
１１ら）ホのモノリス触媒担体２，３は共に、軸方向に
ハニカム状１ｃじ１通づる多数の通気孔を有するセラミ
ック月で構成し、白金等の触媒をコーティングしたＩＬ
Ｉ体である。11 et al.) The monolithic catalyst carriers 2 and 3 of E are both composed of a ceramic plate having a large number of honeycomb-shaped ventilation holes in the axial direction, and coated with a catalyst such as platinum.
It is I-form.
そして、還元用のモノリス触媒担体２の前端およσ酸化
用のモノリス触媒１１」休３の前後両端と、４ヤタリス
ｌヘク一ス１内面との間には、シールネット１２おＪ、
びシールプレート１３をそれぞれ介設している。A seal net 12,
A seal plate 13 and a seal plate 13 are respectively provided.
また上述の各触媒１１」体２．３の略中央部ど、キトク
リス１−クース１内面どの間には、リング状のスプール
ネット１４．１／ｌをそれぞれ介設し、これら各ス升−
ルネット１４．１４の前１ｕ両端部にＪ量ノる各モノリ
ス触媒担体２，３の外周と４−Ｉタリス１〜ケース１内
面どの間には、例えば加熱膨張性を有する円環状のシー
ル材１５・・・をぞれぞれ介設している。In addition, a ring-shaped spool net 14.1/l is interposed between approximately the center of each catalyst 11'' body 2.3 and between the inner surfaces of the Kitokris 1 and Koos 1.
Between the outer periphery of each of the monolithic catalyst carriers 2 and 3, which are disposed in an amount J at both ends of the front lunette 14 and 14, and the inner surface of the 4-I talis 1 to the case 1, for example, a heat-expandable annular sealing material 15 is provided. ... are intervening respectively.
ところで、前述の還元用のモノリス触媒担体２の１１２
端部には、１１７タリストタ〜ス１内に固定したプレー
ト部材１６と、柔軟性をイｊする中間部材としての厚さ
５０μのステンレス薄板１７とで囲繞されたシール材１
８を介設している。By the way, 112 of the monolithic catalyst carrier 2 for reduction mentioned above
At the end, there is a sealing material 1 surrounded by a plate member 16 fixed in the 117 talistor case 1 and a thin stainless steel plate 17 with a thickness of 50μ as an intermediate member to reduce flexibility.
8 is interposed.
」−述のシール材１８は加熱膨張性を有し、このシール
材１８どしては例えばインターラムマットを用いる。The sealing material 18 mentioned above has heat-expandable properties, and for example, an interlam mat is used as the sealing material 18.
インターラムマットは、セラミックスファイバにヒル石
（ｖｃｒｍｉｃｕｌｉｔｃ ）を取付けた熱膨張材で、
８００〜１１００℃で数分間加熱するとｖＪ張して容積
が６〜２０イ８に増加ツる特性をもっている。Interlam mat is a thermal expansion material made of ceramic fibers with vermiculite attached.
It has the property that when heated at 800 to 1100°C for several minutes, the vJ is increased and the volume increases to 6 to 20.8.
しかも、上）ボのシール材１８は第２図に示１Ｊ、うに
、Ｕノリス触媒１ｒ４休２の後部外周とキャタリストケ
ース１との間に位置する第１シール祠１９・・・と、モ
ノリス触媒担体２の後端面どプレート部材１６との間に
位置Ｊる第２シール祠２０・・・どの二種類を備え、上
述の第１シール材１９・・・は〔）リス触媒担体２の径
方向へ加熱膨張し、また第２シール材２０・・・はモノ
リス触媒担体２の軸方向へ加熱膨張する。In addition, the sealing material 18 of the above) is shown in FIG. The second sealing hole 20 located between the rear end face plate member 16 of the catalyst carrier 2 is provided with any two types, and the first sealing material 19 described above is [) the diameter of the catalyst carrier 2. The second sealing material 20 is heated and expanded in the axial direction of the monolithic catalyst carrier 2.
図示実施例は上記の如く構成するものにして、以下作用
を説明する。The illustrated embodiment is constructed as described above, and its operation will be explained below.
触媒コンバータの入口フランジ６内から第１図に矢印で
示す如くキャタリストケース１内に流入した排気ガスは
、まず軸方向前段に配設した還元用のＥノリス触媒担体
２で還元浄化され、次いで軸方向後段に配設した酸化用
モノリス触媒担体３で酸化浄化された後に、出口フラン
ジ９内を通って流出される。Exhaust gas flowing into the catalyst case 1 from inside the inlet flange 6 of the catalytic converter as shown by the arrow in FIG. After being oxidized and purified by the oxidizing monolithic catalyst carrier 3 disposed at the rear stage in the axial direction, it is discharged through the outlet flange 9.
ところで、上述の排気ガス浄化時にＪ３いては、Ｌノリ
ス触媒体２の後端部分に設けた第１シール４４１９およ
び第２シール材２０が熱膨張する。By the way, during J3 during the exhaust gas purification described above, the first seal 4419 and the second seal material 20 provided at the rear end portion of the L Norris catalyst body 2 thermally expand.
ここで、上述の第１シール材１９はモノリス触媒担体２
の径方向つまり第２図の矢印ａ方向に膨張して、この触
媒担体２を径方向から強力に保持すると共に、キャタリ
ストケース１による熱膨張に対応して、モノリス触媒担
体２外周とキャタリストケース１との間の隙間２１を閉
塞し、この隙間２１からのＪＪＩ気ガスのリークを確実
に防１［する、。Here, the first sealing material 19 described above is the monolithic catalyst carrier 2.
It expands in the radial direction of the monolithic catalyst carrier 2, that is, in the direction of the arrow a in FIG. The gap 21 between the case 1 and the case 1 is closed to reliably prevent the JJI gas from leaking from the gap 21.
また、上述の第２シール＋Ａ２０はモノリス触媒担体２
の軸方向つまり第２図の矢印す方向に膨張して、排気ガ
ス圧力によりモノリス触媒担体２が軸１）向後方へずれ
るのを防１ｉ：ｉる。Moreover, the above-mentioned second seal +A20 is the monolithic catalyst carrier 2
The monolithic catalyst carrier 2 is expanded in the axial direction, that is, in the direction of the arrow in FIG.
このように上述の二種のシール材１９．２０により触媒
担体２をラジアル方向、スラスト方向から強力に保持す
ることができるので、該触媒担体２のＵ＋気ガスの熱ｄ
３よび流動圧力に起因するずれ発生がなくなり、信頼性
の向」−を図ることができる効果がある。In this way, the catalyst carrier 2 can be strongly held in the radial direction and the thrust direction by the two types of sealing materials 19 and 20 described above, so that the heat d of the catalyst carrier 2 + gas
3. Also, the occurrence of deviation due to flow pressure is eliminated, which has the effect of improving reliability.
また、上述のシール材１８とモノリス触媒担体２との間
には柔軟性を有する中間部材としてステンレス薄板１７
を介設しているので、シール材１８の熱膨張時の追従性
がよい。A thin stainless steel plate 17 is also provided as a flexible intermediate member between the sealing material 18 and the monolithic catalyst carrier 2.
, the thermal expansion of the sealing material 18 can be easily followed.
さらに上述の第１シール材１９および第２シールｖｉ２
０を、ステンレス薄板１７とプレート部材１６とで囲繞
しているので、排気ガスがこれら各シール材１９．２０
に直接接触するのを防止して、該シール材１９．２０の
熱劣化Ｊ３ Ｊ：び飛散を防止し、以てシール材１９．
２０による保持力の維持を図ることができる効果がある
。Furthermore, the above-mentioned first seal material 19 and second seal vi2
0 is surrounded by the thin stainless steel plate 17 and the plate member 16, so the exhaust gas flows through each of these sealing materials 19 and 20.
This prevents direct contact with the sealing material 19.20, thereby preventing thermal deterioration and scattering of the sealing material 19.20.
20 has the effect of maintaining the holding force.
この発明の構成と、上述の実施例との対応において、
この発明のケーシングは、実施例のキャタリストケース
１に対応し、
以下同様に、
中間部月は、ステンレス薄板１７に対応するも、この発
明は、上述の実施例の構成のみに限定されるものではな
い。Regarding the correspondence between the structure of this invention and the above-mentioned embodiments, the casing of this invention corresponds to the catalyst case 1 of the embodiment, and similarly, the middle portion corresponds to the thin stainless steel plate 17. The invention is not limited to the configurations of the embodiments described above.
例えば、上）本の中間部材としてはステンレス薄板１７
に代えてカーボンシール材を用いてもよく、さらに上述
の膨張方向をｙシにするシール構造を酸化用のモノリス
触媒担ＩＡ３の後端部に適用してもよいことは勿論であ
る。For example, as an intermediate member of the above book, a thin stainless steel plate 17 is used.
It goes without saying that a carbon sealing material may be used in place of this, and furthermore, the above-described sealing structure in which the expansion direction is y may be applied to the rear end of the monolithic catalyst support IA3 for oxidation.
図面はこの発明の一実施例を示し、 第１図は触媒コンバータの断面図、 第２図は第１図の要部拡大図である。 １・・・キャクリス１へケース The drawings show an embodiment of the invention, Figure 1 is a cross-sectional view of the catalytic converter. FIG. 2 is an enlarged view of the main part of FIG. 1. 1...Case to Cacris 1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23586086A JPS6390613A (en) | 1986-10-02 | 1986-10-02 | Catalyst converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23586086A JPS6390613A (en) | 1986-10-02 | 1986-10-02 | Catalyst converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6390613A true JPS6390613A (en) | 1988-04-21 |
Family
ID=16992321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23586086A Pending JPS6390613A (en) | 1986-10-02 | 1986-10-02 | Catalyst converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6390613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013906A2 (en) * | 1998-12-21 | 2000-06-28 | Delphi Technologies, Inc. | Catalytic converter |
-
1986
- 1986-10-02 JP JP23586086A patent/JPS6390613A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013906A2 (en) * | 1998-12-21 | 2000-06-28 | Delphi Technologies, Inc. | Catalytic converter |
| EP1013906A3 (en) * | 1998-12-21 | 2002-02-06 | Delphi Technologies, Inc. | Catalytic converter |
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