JPH0255604B2 - - Google Patents
Info
- Publication number
- JPH0255604B2 JPH0255604B2 JP56020909A JP2090981A JPH0255604B2 JP H0255604 B2 JPH0255604 B2 JP H0255604B2 JP 56020909 A JP56020909 A JP 56020909A JP 2090981 A JP2090981 A JP 2090981A JP H0255604 B2 JPH0255604 B2 JP H0255604B2
- Authority
- JP
- Japan
- Prior art keywords
- cushion material
- heat
- catalyst
- resistant steel
- catalyst body
- 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 - Lifetime
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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
-
- 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
- F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
- F01N2350/02—Fitting ceramic monoliths in a metallic housing
- F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage
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】
この発明は、内燃機関の排気ガス浄化等に用い
る触媒体の保持装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a catalyst holding device used for purifying exhaust gas of an internal combustion engine.
自動車に搭載する内燃機関等では、排気系に、
触媒体を装着して排気ガスを浄化している。触媒
体は、振動によつて破損するのを防ぐため、外面
にスチールウールのクツシヨン材を被着して触媒
筒内に挿入している。ところが、クツシヨン材中
を排気ガスが通つて、浄化率が下り、保温性も少
くて、浄化率が低下することがある。 In internal combustion engines installed in automobiles, there are
A catalyst is installed to purify exhaust gas. In order to prevent damage due to vibration, the catalyst body is inserted into the catalyst cylinder with a steel wool cushion material coated on its outer surface. However, when exhaust gas passes through the cushion material, the purification rate decreases, and the heat retention is also low, which may lower the purification rate.
この発明は、かかる点に鑑み、触媒体に被着す
るクツシヨン材を、保温性およびシール性がよく
て、しかも安価にできるように改善したもので、
以下、図面に示す本発明の実施例について説明す
る。 In view of these points, the present invention improves the cushion material that adheres to the catalyst body so that it has good heat retention and sealing properties, and can be made at low cost.
Embodiments of the present invention shown in the drawings will be described below.
第１図乃至第３図は本発明の一実施例を示すも
ので、
耐熱鋼の繊維１とガラス繊維をシリカ処理した
シリグラスウール２の層を二層を重ねたクツシヨ
ン材３を作る。この場合、耐熱性繊維１の線径の
太さは、50μ以下、好ましくは20μ以下で、耐熱
性繊維１の層の厚さは、シリグラスウール２の厚
さの1/5以下とする。触媒体４は、ハニカム状の
セラミツクの筒に、触媒剤を付着させたもので、
クツシヨン材３を、耐熱鋼の繊維１を外側にして
巻付ける。一方、第３図は、触媒体４の前後面に
被着するクツシヨン材３で、耐熱鋼の薄板１ａの
内側にシリグラスウールを当てて二層にしたもの
で環状に形成してある。又、クツシヨン材３は、
第４図に示すように、耐熱鋼の繊維又は薄板１ａ
と、シリグラスウール２と、耐熱鋼の繊維１を三
層にしてもよい。そして、クツシヨン材３は、層
状にしたとき、全面に複数の針によつて刺し子６
を行つて、ほつれるのを防ぐ、こうして、触媒体
４の外面にクツシヨン材３を被着し、触媒筒５内
に圧入する。第５図は、この発明の他の実施例を
示すもので、クツシヨン材３を断面Ｌ形で環状に
し、触媒体４の両端外周に被着させて、触媒筒５
内に圧入する。この場合も、クツシヨン材３は、
第６図に示すように、耐熱鋼の繊維１、シリグラ
スウール２、耐熱鋼の繊維１を層状にするか、第
７図に示すように、耐熱鋼の薄板１ａ、シリグラ
スウール２、耐熱鋼の繊維１を層状にしたもので
ある。 1 to 3 show an embodiment of the present invention, in which a cushion material 3 is made by stacking two layers of heat-resistant steel fibers 1 and silica wool 2, which is a glass fiber treated with silica. In this case, the wire diameter of the heat-resistant fiber 1 is 50 μm or less, preferably 20 μm or less, and the thickness of the layer of the heat-resistant fiber 1 is 1/5 or less of the thickness of the silica wool 2. The catalyst body 4 is a honeycomb-shaped ceramic cylinder to which a catalyst agent is attached.
The cushion material 3 is wound with the heat-resistant steel fibers 1 on the outside. On the other hand, FIG. 3 shows a cushion material 3 attached to the front and rear surfaces of the catalyst body 4, which is formed into a ring shape by applying siliglas wool to the inside of a heat-resistant steel thin plate 1a to form two layers. Moreover, the cushion material 3 is
As shown in FIG. 4, fiber or thin plate 1a of heat-resistant steel
, siliglas wool 2 and heat-resistant steel fiber 1 may be formed into three layers. When the cushion material 3 is layered, the entire surface is pierced with sashiko 6 by a plurality of needles.
The cushion material 3 is applied to the outer surface of the catalyst body 4 to prevent it from fraying, and the cushion material 3 is press-fitted into the catalyst cylinder 5. FIG. 5 shows another embodiment of the present invention, in which a cushion material 3 is made into an annular shape with an L-shaped cross section, and is attached to the outer periphery of both ends of the catalyst body 4.
Press fit inside. In this case as well, the cushion material 3 is
As shown in FIG. 6, heat-resistant steel fibers 1, siliglass wool 2, and heat-resistant steel fibers 1 are layered, or as shown in FIG. The fiber 1 is layered.
作用について説明する。 The effect will be explained.
触媒体４は、複数の刺し子６を有するクツシヨ
ン材３を介して触媒筒５内に挿入されているから
クツシヨン材３のほつれもなく、かつクツシヨン
材３によつて防振され、破損を少くできて耐久性
を高くできる。そして、クツシヨン材３は、耐熱
鋼の繊維又は薄板１ａと、シリグラスウール２の
層が積層され、高価な耐熱鋼の繊維又は薄板１ａ
を薄くできて安価にできる。又、シリグラスウー
ル２は、密度も高く、排気ガスの洩れを少くし、
保湿性が高くて、浄化率の向上が図れる。更に、
外側の耐熱鋼の繊維又は薄板は摺動性がよくて、
触媒筒５内への圧入が楽にできる。 Since the catalyst body 4 is inserted into the catalyst cylinder 5 through the cushion material 3 having a plurality of stabs 6, there is no fraying of the cushion material 3, and vibration is prevented by the cushion material 3, so that damage can be reduced. can increase durability. The cushion material 3 is made by laminating layers of heat-resistant steel fibers or thin plates 1a and siliglass wool 2, and is made of expensive heat-resistant steel fibers or thin plates 1a.
can be made thinner and cheaper. In addition, Siliglas Wool 2 has a high density and reduces exhaust gas leakage.
It has high moisturizing properties and can improve the purification rate. Furthermore,
The outer heat-resistant steel fiber or thin plate has good sliding properties,
It can be easily press-fitted into the catalyst cylinder 5.
以上説明したように、この発明は、触媒筒の外
面に被着して、触媒筒内に圧入する複数の刺し子
によつてクツシヨン材のほつれを防止するように
して耐熱鋼の繊維又は薄板と、シリグラスウール
を、二層又は、三層に積層させて形成したので、
シリグラスウールは密度も高く保温性もよくて、
浄化率の向上が図れる。そして、材料価額の高い
耐熱鋼の繊維又は薄板は、厚さを薄くすることが
できて安価にできる。又、外側に位置する耐熱鋼
の繊維又は薄板は、滑り易いので、触媒筒内へ圧
入する作業が楽にできる。しかも、二層又は三層
に形成されたクツシヨン材を触媒体に被着して触
媒筒内に圧入する場合にも、各層が刺し子によつ
て互いに連結されているので、各層間にずれが生
ずることがなく、型くずれが生じるようなことも
ない。尚、クツシヨン材は、外筒の端面に分割す
るか、断面をＬ形にして、触媒体の外周両端に被
着すればよい。 As explained above, the present invention includes heat-resistant steel fibers or thin plates that are attached to the outer surface of the catalyst cylinder and are press-fitted into the catalyst cylinder to prevent the cushion material from fraying. Since it is formed by laminating two or three layers of siliglas wool,
Siliglas wool has a high density and good heat retention,
Purification rate can be improved. Fibers or thin plates of heat-resistant steel, which are expensive materials, can be made thinner and cheaper. In addition, since the heat-resistant steel fibers or thin plates located on the outside are easily slippery, it can be easily press-fitted into the catalyst cylinder. Furthermore, even when a cushion material formed in two or three layers is applied to the catalyst body and press-fitted into the catalyst cylinder, each layer is connected to each other by the sashimi, so that misalignment occurs between each layer. There is no possibility that the product will lose its shape. The cushion material may be divided into end faces of the outer cylinder, or may have an L-shaped cross section, and may be applied to both ends of the outer periphery of the catalyst body.
第１図乃至第３図は本発明の一実施例を示し、
第１図は縦断面図、第２図及び第３図はクツシヨ
ン材の拡大断面図、第４図は本発明の他の実施例
を示すクツシヨン材の拡大断面図、第５図及び第
６図は本発明の更に他の実施例を示し、第５図は
縦断面図、第６図はクツシヨン材の拡大断面図、
第７図は本発明の他の実施例を示すクツシヨン材
の拡大断面図である。
１……耐熱鋼の繊維、１ａ……耐熱鋼の薄板、
２……シリグラスウール、３……クツシヨン材、
４……触媒体、５……触媒筒。
1 to 3 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view, FIGS. 2 and 3 are enlarged sectional views of the cushion material, FIG. 4 is an enlarged sectional view of the cushion material showing another embodiment of the present invention, and FIGS. 5 and 6. shows still another embodiment of the present invention, FIG. 5 is a longitudinal sectional view, FIG. 6 is an enlarged sectional view of the cushion material,
FIG. 7 is an enlarged sectional view of a cushion material showing another embodiment of the present invention. 1... Fiber of heat-resistant steel, 1a... Thin plate of heat-resistant steel,
2...Siriglass wool, 3...Cushion material,
4... Catalyst body, 5... Catalyst cylinder.
Claims (1)
重畳させて全面にわたつて複数の刺し子を挿通し
たクツシヨン材を設け、該クツシヨン材を触媒体
の外周に耐熱鋼の繊維又は薄板が外面になるよう
に被着し、触媒筒内に圧入したことを特徴とする
触媒体の保持装置。 ２ 耐熱鋼の繊維又は薄板とシリグラスウールと
耐熱鋼の繊維を三層に重ね全面にわたつて複数の
刺し子を挿通したクツシヨン材を設け、該クツシ
ヨン材を触媒体の外面に被着し、触媒筒内に圧入
したことを特徴とする触媒体の保持装置。[Scope of Claims] 1. A cushion material is provided in which fibers or thin plates of heat-resistant steel and siliglas wool are overlapped and a plurality of sashiko are inserted over the entire surface, and the cushion material is wrapped around the outer periphery of the catalyst body. 1. A holding device for a catalyst body, characterized in that the catalyst body is press-fitted into a catalyst cylinder, and is press-fitted into a catalyst cylinder. 2 A cushion material made of three layers of heat-resistant steel fibers or thin plates, siliglas wool, and heat-resistant steel fibers is provided, with multiple needles inserted over the entire surface, and the cushion material is applied to the outer surface of the catalyst body to form a catalyst cylinder. A holding device for a catalyst body, characterized in that the device is press-fitted into the catalyst body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020909A JPS57135214A (en) | 1981-02-17 | 1981-02-17 | Holding device of catalyst body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020909A JPS57135214A (en) | 1981-02-17 | 1981-02-17 | Holding device of catalyst body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57135214A JPS57135214A (en) | 1982-08-20 |
| JPH0255604B2 true JPH0255604B2 (en) | 1990-11-27 |
Family
ID=12040347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56020909A Granted JPS57135214A (en) | 1981-02-17 | 1981-02-17 | Holding device of catalyst body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57135214A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142416U (en) * | 1983-03-14 | 1984-09-22 | 中央発條株式会社 | Catalytic converter cushion |
| JPS60153812U (en) * | 1984-03-24 | 1985-10-14 | 三菱自動車工業株式会社 | Diesel exhaust filter device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2261663C2 (en) * | 1972-12-16 | 1983-07-14 | Fa. J. Eberspächer, 7300 Esslingen | Elastic mounting for ceramic catalyst carriers |
| AT332685B (en) * | 1973-04-18 | 1976-10-11 | Eberspaecher J | ELASTIC MOUNTING OF A CATALYST |
| JPS5266814U (en) * | 1975-11-14 | 1977-05-18 |
-
1981
- 1981-02-17 JP JP56020909A patent/JPS57135214A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57135214A (en) | 1982-08-20 |
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