JPH10299470A - Catalyst converter - Google Patents
Catalyst converterInfo
- Publication number
- JPH10299470A JPH10299470A JP9111257A JP11125797A JPH10299470A JP H10299470 A JPH10299470 A JP H10299470A JP 9111257 A JP9111257 A JP 9111257A JP 11125797 A JP11125797 A JP 11125797A JP H10299470 A JPH10299470 A JP H10299470A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- catalyst carrier
- cone
- cylindrical body
- cylindrical
- 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.)
- Granted
Links
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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/02—Fitting monolithic blocks into the housing
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車のエンジン
から排出される排気を浄化するための触媒コンバータに
関する。The present invention relates to a catalytic converter for purifying exhaust gas emitted from an automobile engine.
【０００２】[0002]
【従来の技術】この種の触媒コンバータは、両端にコー
ン部を有するケースの中央に設けた筒体部内に収容する
のが一般であり、該ケースは、長手方向に２分割した形
状の半割体で触媒担体を挟み、分割面に設けたフランジ
を溶接して一体化している（例えば特開昭６３−１４２
８号）。ケースをこのような構造にすると、前記半割体
の成形のための金型が大型になり、またケースに対する
触媒担体の位置決め及び気密維持の部材を必要とするた
め高コストになる。2. Description of the Related Art This type of catalytic converter is generally housed in a cylindrical body provided at the center of a case having cones at both ends, and the case is divided into two parts in a longitudinal direction. The catalyst carrier is sandwiched between the bodies, and the flange provided on the divided surface is welded and integrated (for example, see JP-A-63-142).
No. 8). When the case has such a structure, a mold for molding the half body becomes large, and a member for positioning the catalyst carrier with respect to the case and maintaining airtightness is required, resulting in high cost.
【０００３】前記の半割体を用いるものとは別に、筒体
の両端にコーン部を溶接する構造のものがあり（米国特
許第４，０７０，１５８号）、これは図４に示すよう
に、ケースａが筒部ｂとコーン部ｃからなり、シールマ
ットｅを巻いた触媒担体ｄを筒体ｂに収容している。筒
体ｂは、板体から内径が図示のＤより小径で重ね代ｂ１
をもつように成形され、弾力に抗して内径を拡げ、これ
にシールマットｅを巻いた触媒担体ｄを挿入し、自由状
態に戻して復元力による締付け力を作用させた状態で端
部を溶接部ｂ２で固着する。然るのちコーン部Ｃの大径
部Ｃ1を挿入して内向きのカラーＣ2で筒部ｄとシールマ
ットｅの端部を押さえ、溶接部Ｃ3で固着する。[0003] Apart from the above-mentioned half-split body, there is a structure in which cone portions are welded to both ends of a cylindrical body (US Pat. No. 4,070,158), as shown in FIG. The case a comprises a cylindrical portion b and a cone portion c, and a catalyst carrier d wound with a seal mat e is accommodated in the cylindrical body b. The cylindrical body b has an inner diameter smaller than D shown in the figure from the plate body, and the overlap allowance b 1
The inner diameter is expanded against the elasticity, the catalyst carrier d around which the seal mat e is wound is inserted, and the end is returned to the free state and the end portion is applied with the tightening force by the restoring force. fixed at the weld b 2. Holding an end portion of the cylindrical portion d and the sealing mat e color C 2 of the inwardly by inserting the large diameter portion C 1 of the later cone portion C accordingly, it is fixed by welds C 3.
【０００４】このケースａは、触媒担体ｄの位置決めと
気密保持が可能であるが、内径Ｄが必ずしも一定寸法に
はならないため、大径部Ｃ1との間に隙間が生じたり嵌
合不能になるおそれがあり、また内向きのカラーＣ2を
成形する絞り加工は容易には行なえない。[0004] The case a is susceptible to positioning and airtightness of the catalyst support d, since the inner diameter D is not always constant dimensions, or fitted incapable gap is formed between the large-diameter portion C 1 It becomes a possibility has also drawn to shape the color C 2 of the inward easily not performed.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、前記従来技
術の後者を改善し、コーン部の成形及び溶接を容易にす
ることを課題とする。SUMMARY OF THE INVENTION An object of the present invention is to improve the latter of the prior art and to facilitate the forming and welding of the cone.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するため
の手段のうち、第１の手段は、請求項１に記載したとお
り、円柱状で多孔質の触媒担体と、該触媒担体の外周面
を囲むシールマットと、該シールマットの外周面に巻い
た板体の端部を該板体の表面に重ねて溶接した筒体と、
該筒体の両端に大径部を溶接したコーン部とを備える排
気コンバータにおいて、コーン部の大径側の端部に外向
きのフランジを設け、該フランジの端面を筒体の端部に
当接し、該フランジと筒体で形成される外側の隅部をＴ
型に溶接して接続したことを特徴とする。Means for Solving the Problems The first means for solving the above problems is, as described in claim 1, a columnar porous catalyst carrier and an outer peripheral surface of the catalyst carrier. A seal mat surrounding the seal mat, a tubular body obtained by overlapping and welding an end of a plate wound around the outer peripheral surface of the seal mat to the surface of the plate,
In an exhaust converter provided with a cone portion having a large-diameter portion welded to both ends of the cylindrical body, an outward flange is provided at the large-diameter end of the cone portion, and the end face of the flange is applied to the end of the cylindrical body. And the outer corner formed by the flange and the cylinder is T
It is characterized by being connected to the mold by welding.
【０００７】該手段によれば、コーン部の大径部のフラ
ンジは、外向きのものであるから成形容易であり、ま
た、筒体の内径及び外径は、コーン部のフランジの幅内
に納まればよいから、シールマットに充分な締付け力を
作用させるように縮径させることができ、触媒担体の気
密と位置決めが確実になされる。そして、該フランジと
筒体の溶接部は、Ｔ型の溶接で溶接代を大きくとれるか
ら強度の大きい溶接部が得られる。According to the means, the flange of the large diameter portion of the cone portion is easy to mold because it is directed outward, and the inner and outer diameters of the cylindrical body are within the width of the flange of the cone portion. Since it is enough to fit, the diameter can be reduced so that a sufficient tightening force acts on the seal mat, and the airtightness and positioning of the catalyst carrier are ensured. The welding portion of the flange and the cylindrical body can have a large welding margin by T-shaped welding, so that a welding portion having high strength can be obtained.
【０００８】また第２の手段は、請求項２に記載したと
おり、請求項１において、コーン部のフランジの幅の中
間部に筒体の端部を位置させたことを特徴とする。The second means is characterized in that, in the first aspect, the end of the cylindrical body is located at an intermediate portion of the width of the flange of the cone portion.
【０００９】該手段によれば、フランジの内周側で形成
されるコーン部の端部の内径が筒体の内径より小径にな
るため、コーン部から筒体内に流入する排気の外周側の
気流がシールマットの端部を直撃するのを防止でき、該
端部の損傷を防止する。According to this means, since the inner diameter of the end of the cone portion formed on the inner peripheral side of the flange is smaller than the inner diameter of the cylindrical body, the airflow on the outer peripheral side of the exhaust gas flowing into the cylindrical body from the cone portion is reduced. Can be prevented from directly hitting the end of the seal mat, and damage to the end can be prevented.
【００１０】[0010]
【発明の実施の形態】以下、図面を参照して本発明の実
施の形態を説明する。図１〜３において１は触媒コンバ
ータ、２はそのケース、３はケース３の筒部、４，４は
排気通路となるコーン部である。筒部３内には円柱状で
多孔の触媒担体５がシールマット６を巻き付けた状態で
収容されている。該シールマット６は、例えばＳｉ
Ｏ3，Ａｌ2Ｏ3等を主成分とする熱膨張性ファイバーを
マット状にしたもので、断熱性と弾性があり、圧縮状態
で気密性を呈する。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a catalytic converter, 2 denotes a case thereof, 3 denotes a cylindrical portion of the case 3, and 4 and 4 denote cone portions serving as exhaust passages. A cylindrical, porous catalyst carrier 5 is accommodated in the cylindrical portion 3 with a seal mat 6 wound thereon. The seal mat 6 is made of, for example, Si
A thermally expandable fiber mainly composed of O 3 , Al 2 O 3, or the like, is formed into a mat shape, has heat insulation properties and elasticity, and exhibits airtightness in a compressed state.
【００１１】筒体３は、長方形の鋼板を一部が重なる円
筒状に曲げ、端部の重ね代３ａを他端部側に重ねて溶接
部３ｂで溶接したものであり、触媒担体５を組付けたの
ちの内径をＤとすれば、自由状態ではこれより小径にな
るように成形される。この成形体をフックの如き工具で
弾力に抗して拡径し、シールマット６を巻いた触媒担体
５を挿入し、成形体を自由状態に戻せばシールマット６
に圧縮力が作用して触媒担体５が保持される。The cylindrical body 3 is formed by bending a rectangular steel plate into a partially overlapping cylindrical shape, overlapping an end overlap portion 3a on the other end side, and welding it at a welding portion 3b. If the inside diameter after attachment is D, in the free state, it is formed to have a smaller diameter. The molded body is expanded against the elasticity with a tool such as a hook, the catalyst carrier 5 around which the seal mat 6 is wound is inserted, and the molded body is returned to a free state.
The catalyst carrier 5 is held by a compressive force acting on.
【００１２】この状態のまま、又は別の加圧部材で成形
体を加圧することにより圧縮力を増大して端部を溶接部
３ｂで溶接すれば、筒体３が形成され、触媒担体５は該
筒体３内にシールマット６を介して弾性的、断熱的且つ
気密に保持される。In this state or when the compact is pressed by another pressurizing member to increase the compressive force and weld the end portion at the welded portion 3b, the cylindrical body 3 is formed, and the catalyst carrier 5 is formed. It is held elastically, thermally insulated and airtight within the cylindrical body 3 via a seal mat 6.
【００１３】シールマット６の長さは、触媒担体５の長
さと等しくてもよいが、図２に示すように端部側で段差
Ｓを形成するように長さを少し短くしても保持作用、気
密作用に実質上の差は生じない。Although the length of the seal mat 6 may be equal to the length of the catalyst carrier 5, even if the length is slightly reduced so as to form a step S at the end as shown in FIG. There is no substantial difference in airtightness.
【００１４】コーン部４は、大径側に外向きに幅Ｗのフ
ランジ４ａが形成されており、該幅Ｗの中間位置に筒体
３の端部が当接して形成されるＴ型の外側の隅部が溶接
部４ｂで接続される。The cone portion 4 has a flange 4a having a width W outwardly formed on the large diameter side, and an outer portion of a T-shape formed by abutting the end of the cylindrical body 3 at an intermediate position of the width W. Are connected at the welded portion 4b.
【００１５】フランジ４ａの幅Ｗと筒体３の径をこのよ
うにすることにより、充分な溶接代をもたせることがで
きる。またフランジ４ａのコーン部４が筒体３の内径よ
り小径になるので、排気Ｅの外周側の流れＥａがシール
マット６の端部を直撃するのを防止でき、該端部が損傷
するのを避けることができる。By setting the width W of the flange 4a and the diameter of the cylindrical body 3 in this manner, a sufficient welding margin can be provided. Also, since the diameter of the cone portion 4 of the flange 4a is smaller than the inner diameter of the cylindrical body 3, it is possible to prevent the flow Ea on the outer peripheral side of the exhaust E from directly hitting the end of the seal mat 6 and prevent the end from being damaged. Can be avoided.
【００１６】[0016]
【発明の効果】以上の説明から明らかなとおり、請求項
１の手段によれば、筒部及びコーン部の成形が容易であ
り、また該筒部とコーン部の溶接部分が筒部の端部とフ
ランジが嵌合することなく当接する構造であるから、筒
体の直径に寸法差があっても支障なく溶接でき、溶接代
も大きくとれ、且つ外隅部の溶接になるから強い溶接部
が得られる利点がある。As is apparent from the above description, according to the first aspect, the cylindrical portion and the cone portion can be easily formed, and the welded portion between the cylindrical portion and the cone portion is formed at the end of the cylindrical portion. The flange and the flange are in contact with each other without fitting, so even if there is a dimensional difference in the diameter of the cylinder, welding can be performed without any problem. There are benefits to be gained.
【００１７】また、請求項２の手段によれば、フランジ
の内周側のコーン部で排気流の外周側が筒体内面に向か
うのを防止し、排気流がシールマットを直撃するのを防
止してその損傷を防止する利点がある。According to the second aspect of the present invention, the outer peripheral side of the exhaust gas is prevented from going toward the inner surface of the cylinder at the inner peripheral cone portion of the flange, and the exhaust gas is prevented from directly hitting the seal mat. This has the advantage of preventing damage.
【図１】 本発明の実施の形態の側面図FIG. 1 is a side view of an embodiment of the present invention.
【図２】 同じく縦断面図FIG. 2 is also a longitudinal sectional view
【図３】 同じく縦断正面図FIG. 3 is also a longitudinal front view
【図４】 従来例の断面図FIG. 4 is a sectional view of a conventional example.
１ 触媒コンバータ ２ ケース ３ 筒部 ３ａ 重ね代 ３ｂ，４ｂ 溶接部 ４ コーン部 ４ａ フランジ ５ 触媒担体 ６ シールマット DESCRIPTION OF SYMBOLS 1 Catalytic converter 2 Case 3 Tubular part 3a Overlap allowance 3b, 4b Weld part 4 Cone part 4a Flange 5 Catalyst carrier 6 Seal mat
───────────────────────────────────────────────────── フロントページの続き (72)発明者 影山 泰 静岡県浜松市豊町508番地の１ 株式会社 ユタカ技研内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yasushi Kageyama 508-1 Toyocho, Hamamatsu-shi, Shizuoka Pref. Yutaka Giken Co., Ltd.
Claims (2)
体の外周面を囲むシールマットと、該シールマットの外
周面に巻いた板体の端部を該板体の表面に重ねて溶接し
た筒体と、該筒体の両端に大径部を溶接したコーン部と
を備える排気コンバータにおいて、コーン部の大径側の
端部に外向きのフランジを設け、該フランジの端面を筒
体の端部に当接し、該フランジと筒体で形成される外側
の隅部をＴ型に溶接して接続したことを特徴とする触媒
コンバータ。1. A cylindrical, porous catalyst carrier, a seal mat surrounding an outer peripheral surface of the catalyst carrier, and an end of a plate wound around the outer peripheral surface of the seal mat are superimposed on the surface of the plate. In an exhaust converter including a welded cylinder and a cone with a large-diameter portion welded to both ends of the cylinder, an outward flange is provided at a large-diameter end of the cone, and an end face of the flange is formed as a cylinder. A catalytic converter characterized in that it is in contact with an end of a body, and an outer corner formed by the flange and the tubular body is welded and connected in a T-shape.
の幅の中間部に筒体の端部を位置させたことを特徴とす
る触媒コンバータ。2. The catalytic converter according to claim 1, wherein the end of the cylindrical body is located at an intermediate portion of the width of the flange of the cone portion.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11125797A JP3380426B2 (en) | 1997-04-28 | 1997-04-28 | Catalytic converter |
| US09/066,696 US6430811B1 (en) | 1997-04-28 | 1998-04-27 | Catalyst container |
| GB9808949A GB2324745B (en) | 1997-04-28 | 1998-04-27 | Catalyst container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11125797A JP3380426B2 (en) | 1997-04-28 | 1997-04-28 | Catalytic converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10299470A true JPH10299470A (en) | 1998-11-10 |
| JP3380426B2 JP3380426B2 (en) | 2003-02-24 |
Family
ID=14556616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11125797A Expired - Fee Related JP3380426B2 (en) | 1997-04-28 | 1997-04-28 | Catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3380426B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000058348A (en) * | 2000-04-27 | 2000-10-05 | 배길훈 | Extrud type end-plate assembly of converter for vehicle |
| JP2003531994A (en) * | 2000-04-26 | 2003-10-28 | ヨット エーバーシュペッヘル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト | Exhaust gas device of exhaust gas equipment, especially automotive catalyst device with modular structure |
| JP2008019868A (en) * | 2006-07-12 | 2008-01-31 | Delphi Technologies Inc | Insulated reagent dosing device |
| JP2021017832A (en) * | 2019-07-18 | 2021-02-15 | 株式会社三五 | Electric heating type catalyst device and method for manufacturing electric heating type catalyst device |
-
1997
- 1997-04-28 JP JP11125797A patent/JP3380426B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003531994A (en) * | 2000-04-26 | 2003-10-28 | ヨット エーバーシュペッヘル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト | Exhaust gas device of exhaust gas equipment, especially automotive catalyst device with modular structure |
| KR20000058348A (en) * | 2000-04-27 | 2000-10-05 | 배길훈 | Extrud type end-plate assembly of converter for vehicle |
| JP2008019868A (en) * | 2006-07-12 | 2008-01-31 | Delphi Technologies Inc | Insulated reagent dosing device |
| US7980063B2 (en) | 2006-07-12 | 2011-07-19 | Delphi Technologies Holdings S.arl | Insulated reagent dosing device |
| JP2021017832A (en) * | 2019-07-18 | 2021-02-15 | 株式会社三五 | Electric heating type catalyst device and method for manufacturing electric heating type catalyst device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3380426B2 (en) | 2003-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6258009A (en) | Catalyst converter supporter | |
| JP2010511825A (en) | Catalytic converter with mounting device for hot exhaust gas oxygen sensor | |
| JPH10299470A (en) | Catalyst converter | |
| JP2008045515A (en) | Catalyst holding structure for exhaust system | |
| JP2587679Y2 (en) | Manifold catalytic converter | |
| JP4178817B2 (en) | Exhaust purification device for internal combustion engine | |
| JP2000297635A (en) | Exhaust gas converter | |
| JP3674694B2 (en) | Tandem catalytic converter and method for manufacturing the same | |
| JP3402224B2 (en) | Exhaust pipe for internal combustion engine and its partition plate welding method | |
| WO2007119453A1 (en) | Catalyst converter and method of producing catalyst converter | |
| US10385745B2 (en) | Exhaust purifying device for internal combustion engine | |
| JP2001342825A (en) | Catalyst converter of internal combustion engine | |
| JP2679857B2 (en) | Catalytic converter with integral housing | |
| JPS6027772Y2 (en) | Catalyst carrier holding device in monolith type catalytic converter | |
| JPH1035487A (en) | Vehicle structure and method for manufacturing the same | |
| JP2000282858A (en) | Exhaust pipe for engine | |
| JPH06264734A (en) | Ceramics-made catalytic converter and manufacture thereof | |
| JPH04104122U (en) | manifold converter | |
| JPH0679181A (en) | Metal carrier for exhaust gas cleaning catalyst | |
| JPH06280551A (en) | Catalyst converter | |
| JPH0414723U (en) | ||
| JP2921534B2 (en) | Catalytic converter | |
| JPH06288233A (en) | Support for exhaust emission control device | |
| JP3399228B2 (en) | Exhaust tube | |
| JPH06272548A (en) | Continuous metal carrier for catalyzer device and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20021105 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081213 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081213 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091213 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091213 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101213 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111213 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111213 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121213 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131213 Year of fee payment: 11 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |