JPS5925858B2 - Honeycomb catalyst cassette forming method - Google Patents
Honeycomb catalyst cassette forming methodInfo
- Publication number
- JPS5925858B2 JPS5925858B2 JP18368281A JP18368281A JPS5925858B2 JP S5925858 B2 JPS5925858 B2 JP S5925858B2 JP 18368281 A JP18368281 A JP 18368281A JP 18368281 A JP18368281 A JP 18368281A JP S5925858 B2 JPS5925858 B2 JP S5925858B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb catalyst
- elastic support
- ring
- case
- forming method
- 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.)
- Expired
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
- 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
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【発明の詳細な説明】
本発明は車輛の排気ガスを浄化するハニカム触媒体カセ
ットの成形方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a honeycomb catalyst cassette for purifying vehicle exhaust gas.
従来実公昭５２−３６０９３号公報に示すような排気ガ
ス浄化用ハニカム触媒体カセットは公知であるが、これ
は半筒状の上下外筒を上下方向に押圧して組立てるよう
になっているので弾性支持体は上下方向のみの押圧力を
受けるので全周にわたって不均一な力を受けることにな
り、弾性支持体の全周の密度が不均一になり、そのため
ハニカム触媒体が回動して摩耗破損するという欠点があ
り、父上上外筒は下端部を重合させて押圧しなければな
らないので重合部に隙間を生じシール性も悪く、上下外
筒を軸方向で溶接固定しなければならないので作業性も
悪く、更に外形が複雑で不均一に突起部があるので歪が
多く、該歪は排気ガスの熱サイクルにより更に大きくな
り破損し易くそのため実用化できないという欠点があっ
た。A honeycomb catalyst cassette for exhaust gas purification as shown in Japanese Utility Model Publication No. 52-36093 is known, but this is assembled by pressing the upper and lower half-cylindrical outer cylinders in the vertical direction, so it is not elastic. Since the support receives pressing force only in the vertical direction, it receives uneven force over the entire circumference, resulting in uneven density around the entire circumference of the elastic support, which causes the honeycomb catalyst to rotate and cause wear and tear. However, since the lower ends of the upper and upper outer cylinders must be overlapped and pressed, a gap is created in the overlapped part, resulting in poor sealing performance.The upper and lower outer cylinders must be welded and fixed in the axial direction, making it difficult to work. Moreover, since the outer shape is complex and there are uneven protrusions, there is a lot of distortion, and the distortion becomes even greater due to the thermal cycle of the exhaust gas, making it easy to break, making it impossible to put it into practical use.
本発明は円筒状のケースを半径方向に絞り、次で軸方向
にリングを押圧して弾性支持体を圧縮して一体となし、
従来の欠点を除くようにしたものである。The present invention squeezes the cylindrical case in the radial direction, then presses the ring in the axial direction to compress the elastic support and make it integral.
This eliminates the drawbacks of the conventional method.
次に添附図面に従って本発明方法を詳細に説明する。Next, the method of the present invention will be explained in detail with reference to the accompanying drawings.
第１図の１は耐熱性金属細線をメリヤス編した筒状金網
でべ これを波付加工した後装巻き又は渦巻きして型で
押圧し、第２図の如き半径方向の筒部２ａと軸方向の鍔
部２ｂとからなる断面［−型の弾性支持体２を形成する
。1 in Fig. 1 is a cylindrical wire mesh made of stockinette knitted heat-resistant metal thin wire.This is corrugated and wound or spiraled and pressed with a mold to form a radial cylindrical part 2a and a shaft as shown in Fig. 2. An elastic support body 2 having a negative-shaped cross section is formed by the flange portion 2b in the direction.
この場合弾性支持体の密度は０．２〜１．５ｇ／ｃｆｉ
ｔ、程度である。In this case, the density of the elastic support is 0.2 to 1.5 g/cfi
t, degree.
３は耐熱性を有するシール部材で、例えはアスベスト、
グラスウール、カーボンファイバー、スチールウール等
を不織布状帯として、メリヤス編した筒状金網外周に巻
回するか又は粒状、粉状にして筒状金網に付着し、該筒
状金網を袋巻きにして圧縮してリング状となし、これを
切断して帯としたりメリヤス編した筒状金網を扁平に押
圧し、前記不織布状帯を芯にしてカレンダーロール巻き
にしたり、アスベスト、グラスウール、カーボンファイ
バー、スチールウールをせんい状にして金属細線と一緒
にメリヤス編したものを袋巻きしたりカレンダーロール
巻きにしたりして成形する。3 is a heat-resistant sealing member, such as asbestos,
A non-woven band of glass wool, carbon fiber, steel wool, etc. is wound around the outer circumference of a stockinette-knitted cylindrical wire mesh, or it is granulated or powdered and attached to the cylindrical wire mesh, and the cylindrical wire mesh is wrapped in a bag and compressed. It is made into a ring shape, cut into a band, or a stockinette-knitted cylindrical wire mesh is pressed flat, and the nonwoven fabric band is used as a core to roll it into a calendar roll, or asbestos, glass wool, carbon fiber, steel wool. It is made into a spiral shape, knitted together with thin metal wire, and then rolled into a bag or calendar roll.
このシール部材３をハニカム触媒体４の外周面中間部に
巻回し、更に外面両隅部に前記弾性支持体２をかぶせ、
第３図の如く耐熱性のケース５内に挿入する。This seal member 3 is wound around the middle part of the outer circumferential surface of the honeycomb catalyst body 4, and the elastic supports 2 are further covered with both corners of the outer surface,
Insert it into a heat-resistant case 5 as shown in FIG.
この時ハニカム触媒体４にかぶせられた弾性支持体２の
半径方向外径及びシール部材３外径との間には間隙部が
あるようにしである。At this time, there is a gap between the radial outer diameter of the elastic support 2 placed over the honeycomb catalyst body 4 and the outer diameter of the seal member 3.
次にケース５の両端部より中央部に向って半径方向に押
圧し乍ら絞り、シール部材３の両端部も押圧して段部５
ａ。Next, the case 5 is squeezed while being pressed in the radial direction from both ends toward the center, and both ends of the sealing member 3 are also pressed to form the stepped portion 5.
a.
大径部５ｂ、段部５ｃを形成し弾性支持体２の筒部２ａ
及びシール部材３を所定密度に圧縮してケース５と一体
となし、次いで断面−］型の耐熱性のリング６を弾性支
持体２の鍔部２ｂ外面に当接して軸方向に押圧し、所定
の密度に圧縮した後、リング６の折曲部６ａをケース５
両端内面に溶着固定して第４図に示すようなハニカム触
媒体カセットを成形する。The cylindrical portion 2a of the elastic support body 2 forms a large diameter portion 5b and a step portion 5c.
The sealing member 3 is compressed to a predetermined density to be integrated with the case 5, and then a heat-resistant ring 6 having a -] cross section is brought into contact with the outer surface of the flange 2b of the elastic support 2 and pressed in the axial direction to form a predetermined density. After compressing the ring 6 to a density of
Both ends are welded and fixed to the inner surfaces to form a honeycomb catalyst cassette as shown in FIG.
この場合弾性支持体２は０．２〜３．Ｏｇ／ｃｆＩｔ程
度に圧縮される。In this case, the elastic support 2 has a diameter of 0.2 to 3. It is compressed to about Og/cfIt.
本発明方法により成形されたハニカム触媒体カセットを
使用する場合は第５図に示す如く一端外周に連結パイプ
７を溶着し、そのフランジ７ａにエキゾーストパイプ８
の流出口を固定し、他端外周には連結パイプ９を溶着し
、そのフランジ９ａにマフラー１０端部を固定する。When using a honeycomb catalyst cassette formed by the method of the present invention, a connecting pipe 7 is welded to the outer circumference of one end as shown in FIG. 5, and an exhaust pipe 8 is attached to the flange 7a of the connecting pipe 7.
A connecting pipe 9 is welded to the outer periphery of the other end, and an end of the muffler 10 is fixed to the flange 9a.
排気ガスはエキゾーストパイプ８より連結パイプ７に流
入し、ハニカム触媒体４を通って浄化され、連結パイプ
８よりマフラー内に排出される。Exhaust gas flows into the connecting pipe 7 from the exhaust pipe 8, is purified through the honeycomb catalyst body 4, and is discharged from the connecting pipe 8 into the muffler.
排気ガスが弾性支持体２の鍔部２ｂ内面より流入して弾
性支持体２内を通ってもシール部材３で通過が阻止され
浄化されない排気ガスが外部に漏洩することがない。Even if the exhaust gas flows in from the inner surface of the flange 2b of the elastic support 2 and passes through the inside of the elastic support 2, the passage is blocked by the seal member 3, so that unpurified exhaust gas does not leak to the outside.
シール性を向上させるため、第６図に示す如く断面１型
のリング６′を使用し、その内方折曲部６’ｂで弾性支
持体２の鍔部２ｂ内面をカバーするようにしてもよく、
弾性支持体２の部分で充分排気ガスのシール性が保持さ
れる場合はシール部材３を使用しなくてもよい。In order to improve the sealing performance, a ring 6' having a cross section of 1 type as shown in FIG. 6 may be used, and its inwardly bent portion 6'b may cover the inner surface of the collar portion 2b of the elastic support 2. often,
If the elastic support 2 maintains sufficient sealing performance against exhaust gas, the seal member 3 may not be used.
本発明によれば円筒状ケースの外面を半径方向に一様に
押圧して絞っているので弾性支持体筒部を全周に亘って
一様の密度とすることができ、又弾性支持体鍔部はケー
スと別のリングで押圧しているので筒部の密度と別に所
定の密度に圧縮でき、半径方向と軸方向を別々の部材で
押圧しているので成形が容易であり、外形が円筒形なの
で熱サイクルによる歪の発生が極めて少く、従って破損
し難いという特徴を有するものである。According to the present invention, since the outer surface of the cylindrical case is uniformly pressed and narrowed in the radial direction, the density of the elastic support tube can be made uniform over the entire circumference. Since the part is pressed by a ring separate from the case, it can be compressed to a predetermined density separately from the density of the cylindrical part.Since the radial direction and the axial direction are pressed by separate members, molding is easy, and the outer shape is cylindrical. Because of its shape, it is characterized by extremely little distortion caused by thermal cycles, and therefore less likely to break.
第１図は本発明に使用する筒状金網斜視図、第２図は第
１図の筒状金網を圧縮成形した弾性支持体の正断面図、
第３図はハニカム触媒体に弾性支持体及びシール部材を
かぶせてケースに挿入した抑圧前の要部切断正面図、第
４図は本発明方法により成形されたハニカム触媒体カセ
ットの第１の実施例要部切断正面図、第５図は第１の実
施例の使用時の要部切断正面図、第６図は本発明方法に
より成形された第２の実施例の要部切断正面図である。
２・・・・・・弾性支持体、２ａ・・・・・・筒部、２
ｂ・・・・・・鍔部、４・・・・・・ハニカム触媒体、
５・・・・・・ケース、６・・・・・・リング、６ａ、
６’ｂ・・・・・・リングの折曲部。FIG. 1 is a perspective view of the cylindrical wire mesh used in the present invention, and FIG. 2 is a front sectional view of an elastic support obtained by compression molding the cylindrical wire mesh of FIG. 1.
FIG. 3 is a cutaway front view of the main part of a honeycomb catalyst body before being suppressed after being covered with an elastic support and a sealing member and inserted into a case, and FIG. 4 is a first embodiment of a honeycomb catalyst body cassette formed by the method of the present invention. FIG. 5 is a cutaway front view of the main part of the first embodiment in use, and FIG. 6 is a cutaway front view of the main part of the second embodiment molded by the method of the present invention. . 2...Elastic support body, 2a...Cylinder part, 2
b...Brim part, 4...Honeycomb catalyst body,
5...Case, 6...Ring, 6a,
6'b...Bending part of the ring.
Claims (1)
支持体をかぶせ、その外面にかぶせた耐熱性のケースの
半径方向を押圧して弾性支持体の筒部を所定の密度に圧
縮し、次いで弾性支持体の鍔部には耐熱性のリングを押
圧して所定の密度に圧縮し、該リングをケースに一体に
溶着固定してなるハニカム触媒体カセットの成形方法。1. Cover the outer corner of the honeycomb catalyst body with an elastic support made of thin metal wire, compress the cylindrical portion of the elastic support to a predetermined density by pressing in the radial direction of a heat-resistant case placed over the outer surface, and then A method for forming a honeycomb catalyst cassette, in which a heat-resistant ring is pressed against the flange of an elastic support to compress it to a predetermined density, and the ring is integrally welded and fixed to a case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18368281A JPS5925858B2 (en) | 1981-11-18 | 1981-11-18 | Honeycomb catalyst cassette forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18368281A JPS5925858B2 (en) | 1981-11-18 | 1981-11-18 | Honeycomb catalyst cassette forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57116120A JPS57116120A (en) | 1982-07-20 |
| JPS5925858B2 true JPS5925858B2 (en) | 1984-06-21 |
Family
ID=16140074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18368281A Expired JPS5925858B2 (en) | 1981-11-18 | 1981-11-18 | Honeycomb catalyst cassette forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925858B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196140U (en) * | 1987-06-02 | 1988-12-16 | ||
| JPS6430948U (en) * | 1987-08-20 | 1989-02-27 |
-
1981
- 1981-11-18 JP JP18368281A patent/JPS5925858B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196140U (en) * | 1987-06-02 | 1988-12-16 | ||
| JPS6430948U (en) * | 1987-08-20 | 1989-02-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57116120A (en) | 1982-07-20 |
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