JPH01147109A - Catalytic converter - Google Patents
Catalytic converterInfo
- Publication number
- JPH01147109A JPH01147109A JP62304224A JP30422487A JPH01147109A JP H01147109 A JPH01147109 A JP H01147109A JP 62304224 A JP62304224 A JP 62304224A JP 30422487 A JP30422487 A JP 30422487A JP H01147109 A JPH01147109 A JP H01147109A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst carrier
- exhaust gas
- metal catalyst
- catalytic converter
- catalyst support
- 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
- 230000003197 catalytic effect Effects 0.000 title claims description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 85
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 48
- 230000004323 axial length Effects 0.000 claims description 4
- 239000003863 metallic catalyst Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 239000000969 carrier Substances 0.000 description 5
- 238000005219 brazing Methods 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 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
-
- 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
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
-
- 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〕
本発明は、触媒コンバータに係わり、特に金属製触媒担
体のフィルムアウト現象を有効に防止した触媒コンバー
タに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a catalytic converter, and more particularly to a catalytic converter that effectively prevents the film-out phenomenon of a metal catalyst carrier.
一般に、自動車の排気系には、排気ガスを浄化するため
、例えば、特開昭５５−８７８１５号公報に開示される
ような金属製触媒コンバータが配置されている。Generally, a metal catalytic converter as disclosed in Japanese Patent Application Laid-Open No. 55-87815, for example, is disposed in the exhaust system of an automobile in order to purify exhaust gas.
第６図および第７図は、この種の金属製触媒コンバータ
で使用される金属製触媒担体の詳細を示すもので、この
金属製触媒担体では、第６図に示すように、金属製の波
板１１と平板１３とを交互に重ね、これ等を芯材を中心
にして、円形形状に多重に巻回して仮コア部１５が形成
され、この仮コア部１５を押し潰すことにより、第７図
に示すような楕円形状の金属製触媒担体１７が形成され
る。Figures 6 and 7 show details of the metal catalyst carrier used in this type of metal catalytic converter. A temporary core portion 15 is formed by stacking the plates 11 and flat plates 13 alternately and winding them multiple times in a circular shape around a core material. By crushing this temporary core portion 15, a seventh An elliptical metal catalyst carrier 17 as shown in the figure is formed.
このような金属製触媒担体１７は、例えば、第８図に示
すように、両端にフランジ１８の形成される容器１９内
に収容されて用いられるが、波板１１と平板１３とを巻
回したままの状態にしてお（と、金員製触媒担体１７内
への排気ガスＧの流通により、金属製触媒担体１７の中
心部に位置する波板１１および平板１３が、図の点線で
示すように、金属製触媒担体１７の軸方向に突出する、
いわゆる、フィルムアウト現象が生じるため、金属製触
媒担体１７の形成後に、波板１１と平板１３とを相互に
ろう付は等により接合することが行なわれている。Such a metal catalyst carrier 17 is used, for example, as shown in FIG. 8, by being housed in a container 19 having flanges 18 formed at both ends. If the metal catalyst carrier 17 is left as it is, the corrugated plate 11 and the flat plate 13 located at the center of the metal catalyst carrier 17 will move as shown by the dotted line in the figure due to the flow of exhaust gas G into the metal catalyst carrier 17. protrudes in the axial direction of the metal catalyst carrier 17,
Because a so-called film-out phenomenon occurs, after the metal catalyst carrier 17 is formed, the corrugated plate 11 and the flat plate 13 are bonded to each other by brazing or the like.
しかしながら、このような従来の金属製触媒担体では、
波板１１と平板１３とを相互にろう付は等により接合す
る必要があるため、生産性が悪く、コストが増大すると
いう問題がある。However, with such conventional metal catalyst carriers,
Since it is necessary to join the corrugated plate 11 and the flat plate 13 to each other by brazing or the like, there are problems in that productivity is poor and costs increase.
本発明は、上記のような問題を解決すべくなされたもの
で、金属製触媒担体の波板と平板との接合を不要にする
ことのできる触媒コンバータを提供することを目的とす
る。The present invention was made to solve the above problems, and an object of the present invention is to provide a catalytic converter that can eliminate the need for joining the corrugated plate and the flat plate of a metal catalyst carrier.
本発明に係わる触媒コンバータは、金属製の波板と平板
とを重ね、これ等を多重に巻回して形成される金属製触
媒担体を容器内に収容してなる触媒コンバータにおいて
、前記金属製触媒担体の排気ガス流出端に、セラミック
製触媒担体の排気ガス流入端を当接したものである。A catalytic converter according to the present invention is a catalytic converter in which a metal catalyst carrier formed by stacking a metal corrugated plate and a flat plate and winding these in multiple layers is accommodated in a container. The exhaust gas inflow end of the ceramic catalyst carrier is brought into contact with the exhaust gas outflow end of the carrier.
本発明の触媒コンバータにおいては、金属製触媒担体の
排気ガス流出端に、セラミック製触媒担体の排気ガス流
入端を当接したので、金属製触媒担体の中央部が排気ガ
ス流出端から排気ガスの下流側に向けて突出しようとす
ると、セラミック製触媒担体により突出を阻止され、フ
ィルムアウト現象が確実に防止されることとなる。In the catalytic converter of the present invention, the exhaust gas inflow end of the ceramic catalyst carrier is brought into contact with the exhaust gas outflow end of the metal catalyst carrier, so that the central part of the metal catalyst carrier is connected to the exhaust gas outflow end from the exhaust gas outflow end. If the catalyst tries to protrude toward the downstream side, the ceramic catalyst carrier prevents the protrusion, thereby reliably preventing the film-out phenomenon.
以下、本発明の詳細を図面に示す実施例について説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of the present invention will be described with reference to embodiments shown in the drawings.
第１図および第２図は、本発明の触媒コンバータの一実
施例を示しており、図において符号２１は、容器を示し
ている。1 and 2 show an embodiment of the catalytic converter of the present invention, and in the figures, reference numeral 21 indicates a container.
この容器２１は、一対の半割状の容器部材２３の鍔部２
５を最中合わせにして、鍔部２５を溶接２７により接合
して構成されている。また、容器２１の排気ガスＧ流入
端および流出端には、ボルト孔２９を有する入口フラン
ジ３１および出口フランジ３３がそれぞれ溶接により固
定されている。This container 21 has a flange 2 of a pair of half-shaped container members 23.
5 are aligned in the middle, and the flange portion 25 is joined by welding 27. Further, an inlet flange 31 and an outlet flange 33 having bolt holes 29 are fixed to the inlet and outlet ends of the exhaust gas G of the container 21 by welding, respectively.
容器２１には、第３図に示すように、金属製の波板３５
と平板３７とを重ね、これ等を多重に巻回して形成され
る金属製触媒担体３９が収容されている。As shown in FIG. 3, the container 21 is provided with a metal corrugated plate 35.
A metal catalyst carrier 39 is housed therein, which is formed by stacking a flat plate 37 and winding them multiple times.
そして、この金属製触媒担体３９の排気ガス流出端には
、セラミック製触媒担体４１の排気ガス流入端が当接し
て配置されている。The exhaust gas inflow end of the ceramic catalyst carrier 41 is placed in contact with the exhaust gas outflow end of the metal catalyst carrier 39 .
すなわち、容器２１における金属製触媒担体３９の排気
ガス流出部となる位置には、外側に突出する環状突部４
３が形成されており、この環状突部４３に、セラミック
製触媒担体４１が配置されている。そして、このセラミ
ック製触媒担体４１は、断面り字形状の緩衝材４５を介
して環状突部４３に支持されている。That is, an annular protrusion 4 protruding outward is provided at a position of the metal catalyst carrier 39 in the container 21 that becomes the exhaust gas outflow part.
3 is formed, and a ceramic catalyst carrier 41 is arranged on this annular protrusion 43. The ceramic catalyst carrier 41 is supported by the annular protrusion 43 via a cushioning material 45 having an L-shaped cross section.
第４図は、セラミック製触媒担体４１の詳細例を示すも
ので、このセラミック製触媒担体４１は、正方形の格子
状に多数の排気ガス流通孔４７を形成して構成されてい
る。FIG. 4 shows a detailed example of the ceramic catalyst carrier 41, and the ceramic catalyst carrier 41 is configured with a large number of exhaust gas flow holes 47 formed in a square grid shape.
なお、セラミック製触媒担体４１の排気ガス流通孔４７
の一辺の長さは、少な（とも、波板３５の山から山を、
結ぶ長さより長くすることが望ましい。Note that the exhaust gas flow holes 47 of the ceramic catalyst carrier 41
The length of one side of
It is desirable that the length be longer than the length to be tied.
また、セラミック製触媒担体４１の軸方向長さは、排気
ガスに対する抵抗を軽減するため、金属製触媒担体３９
の軸方向長さの０． １〜０．２倍程度とすることが望
ましい。In addition, the axial length of the ceramic catalyst carrier 41 is longer than that of the metal catalyst carrier 39 in order to reduce resistance to exhaust gas.
The axial length of 0. It is desirable to set it to about 1 to 0.2 times.
さらに、セラミック製触媒担体４１には、触媒を担持す
るのが望ましいが、必ずしも触媒を担持する必要はない
。Furthermore, although it is desirable that a catalyst be supported on the ceramic catalyst carrier 41, it is not necessarily necessary to support a catalyst.
以上のように構成された触媒コンバータは、−方の容器
部材２３に金属製触媒担体３９およびセラミック製触媒
担体４１を収容した後に、これ等の金属製触媒担体３９
およびセラミック製触媒担体４１の上側から、他方の容
器部材２３を被せ、これ等の容器部材２３を溶接２７に
より接合し、この後、容器２１の両側にフランジ３１を
溶接により固定することにより、容易に製造される。In the catalytic converter configured as described above, after the metal catalyst carrier 39 and the ceramic catalyst carrier 41 are accommodated in the - side container member 23, these metal catalyst carriers 39
Then, cover the other container member 23 from above the ceramic catalyst carrier 41, join these container members 23 by welding 27, and then fix the flanges 31 to both sides of the container 21 by welding. Manufactured in
そして、この触媒コンバータでは、容器２１の入口フラ
ンジ３１から流入した排気ガスＧは、金属調触媒担体３
９の波板３５と平板３７との間隙を通過した後、セラミ
ック製触媒担体４１の排気ガス流通孔４７を通り出口フ
ランジ３３から流出することとなる。In this catalytic converter, the exhaust gas G flowing in from the inlet flange 31 of the container 21 is transferred to the metallic catalyst carrier 3.
After passing through the gap between the corrugated plate 35 and the flat plate 37 of No. 9, the exhaust gas passes through the exhaust gas flow hole 47 of the ceramic catalyst carrier 41 and flows out from the outlet flange 33.
しかして、以上のように構成された触媒コンバータでは
、金属製触媒担体３９の排気ガス流出端に、セラミック
製触媒担体４１の排気ガス流入端を当接したので、金属
製触媒担体３９の中央部が排気ガス流出側に突出しよう
とすると、セラミック製触媒担体４１により突出を阻止
されることとなるため、フィルムアウト現象が確実に防
止されることとなる。Therefore, in the catalytic converter configured as described above, since the exhaust gas inflow end of the ceramic catalyst carrier 41 is brought into contact with the exhaust gas outflow end of the metal catalyst carrier 39, the central part of the metal catalyst carrier 39 If the catalyst tries to protrude toward the exhaust gas outflow side, the ceramic catalyst carrier 41 prevents the protrusion, thereby reliably preventing the film-out phenomenon.
そして、以上のように構成されたメタル触媒担体では、
波板３５と平板３７とを相互にろう付は等で接合する必
要がな（なるため、生産性を従来より大幅に向上するこ
とができる。In the metal catalyst carrier configured as above,
There is no need to join the corrugated plate 35 and the flat plate 37 to each other by brazing or the like (therefore, productivity can be significantly improved compared to the conventional method).
また、以上のように構成されたメタル触媒担体では、セ
ラミック製触媒担体４１の排気ガス流通孔４７の一辺の
長さを、少な（とも、波板３５の山から山を結ぶ長さよ
り長（したので、金属製触媒担体３９を通過した排気ガ
スは、多大な流通、抵抗を受けることなくセラミック製
触媒担体４１に流入することが可能となる。In addition, in the metal catalyst carrier configured as described above, the length of one side of the exhaust gas distribution hole 47 of the ceramic catalyst carrier 41 is set to be less than (also longer than the length connecting the peaks of the corrugated plate 35). Therefore, the exhaust gas that has passed through the metal catalyst carrier 39 can flow into the ceramic catalyst carrier 41 without experiencing significant flow or resistance.
さらに、以上のように構成されたメタル触媒担体では、
セラミック製触媒担体４１を緩衝材４５を介して容器２
１内に支持固定したので、衝撃によりセラミック製触媒
担体４１が破損するのを確実に防止することが可能とな
る。Furthermore, in the metal catalyst carrier configured as above,
Ceramic catalyst carrier 41 is placed in container 2 via buffer material 45.
1, it is possible to reliably prevent the ceramic catalyst carrier 41 from being damaged by impact.
第５図は、本発明の触媒コンバータの他の実施例を示す
もので、この実施例では、金属製触媒担体４９は、円柱
状をしており、円筒状の第１の容器５１内に収容されて
いる。そして、この第１の容器５１の入口および出口側
には、それぞれフランジ５３を有する第２および第３の
容器５５，５７が溶接５９により固定されている。FIG. 5 shows another embodiment of the catalytic converter of the present invention. In this embodiment, a metal catalyst carrier 49 has a cylindrical shape and is housed in a cylindrical first container 51. has been done. Second and third containers 55 and 57 each having a flange 53 are fixed to the inlet and outlet sides of the first container 51 by welding 59.
さらに、第３の容器５７には、円柱状のセラミック製触
媒担体６１が収容され、このセラミック製触媒担体６１
の排気ガス流入端が金属製触媒担体４９の排気ガス流出
端に当接されている。Furthermore, a cylindrical ceramic catalyst carrier 61 is accommodated in the third container 57, and this ceramic catalyst carrier 61
The exhaust gas inflow end of the metal catalyst carrier 49 is in contact with the exhaust gas outflow end of the metal catalyst carrier 49 .
なお、この実施例では、第１の容器５１への第２および
第３の容器５５．５７の溶接時における金属製触媒担体
４９への熱的影響を緩和するため、第１の容器５１には
、一定間隔をおいて外側に突出する一対の環状突部６３
が形成されている。In this embodiment, in order to reduce the thermal influence on the metal catalyst carrier 49 during welding of the second and third containers 55 and 57 to the first container 51, the first container 51 is , a pair of annular protrusions 63 that protrude outward at regular intervals.
is formed.
以上のように構成された触媒コンバータにおいても、第
１図に示した実施例とほぼ同様の効果を得ることができ
る。Even in the catalytic converter configured as described above, substantially the same effects as in the embodiment shown in FIG. 1 can be obtained.
なお、以上述べた実施例では、金属製触媒担体３９．４
９の排気ガス流出端側にのみセラミック製触媒担体４１
．６１を配置した例について述べたが、本発明は、かか
る実施例に限定されるものではなく、金属製触媒担体３
９，４９の排気ガス流入側にもセラミック製触媒担体を
配置するようにしても良いことは勿論である。この場合
には、金属製触媒担体３９，４９が一対のセラミック製
触媒担体により挟持されることとなるため、金属製触媒
担体３９，４９の排気ガス流入側への移動をも確実に防
止することが可能となり、例えば、大きな振動が作用す
る排気マニホールド直付触媒コンバータ等に使用するこ
とが可能となる。In addition, in the embodiment described above, the metal catalyst carrier 39.4
Ceramic catalyst carrier 41 only on the exhaust gas outflow end side of No. 9
．． Although the example in which the metal catalyst carrier 3
It goes without saying that a ceramic catalyst carrier may also be arranged on the exhaust gas inflow side of 9 and 49. In this case, since the metal catalyst carriers 39, 49 are sandwiched between the pair of ceramic catalyst carriers, it is possible to reliably prevent the metal catalyst carriers 39, 49 from moving toward the exhaust gas inflow side. For example, it can be used in a catalytic converter directly attached to an exhaust manifold, etc., which is subject to large vibrations.
以上述べたように、本発明の触媒コンバータでは、金属
製触媒担体の排気ガス流出端に、セラミック製触媒担体
の排気ガス流入端を当接したので、金属製触媒担体の中
央部が排気ガス流出側に突出しようとすると、セラミッ
ク製触媒担体により突出を阻止され、フィルムアウト現
象が確実に防止されることとなるため、金属製触媒担体
の波板と平板との接合を不要にすることができるという
利点があ葛。As described above, in the catalytic converter of the present invention, the exhaust gas inflow end of the ceramic catalyst carrier is in contact with the exhaust gas outflow end of the metal catalyst carrier, so that the central part of the metal catalyst carrier is in contact with the exhaust gas outflow end of the metal catalyst carrier. If the ceramic catalyst carrier tries to protrude to the side, the protrusion is blocked by the ceramic catalyst carrier, and the film-out phenomenon is reliably prevented, making it unnecessary to bond the corrugated plate and the flat plate of the metal catalyst carrier. There is an advantage to this.
第１図は本発明の触媒コンバータの一実施例を示す縦断
面図である。
第２図は第１図の■方問矢視図である。
第３図は第１図の■−■線に沿う横断面図である。
第４図は第１図のセラミック製触媒担体を示す側面図で
ある。
第５図は本発明の触媒コンバータの他の実施例を示す縦
断面図である。
第６図は波板と平板とを巻回している状態を示す斜視図
である。
第７図は金属製触媒担体を示す斜視図である。
第８図はフィルムアウト現象を示す説明図である。
〔主要な部分の符号の説明〕
２１．５１，５５．５７・・・容器
３９．４９・・・金属製触媒担体
４１．６１・・・セラミック製触媒担体。
特許出願人 日本ラヂヱーター株式会隻、代 理 人
弁理士 古 谷 史 旺５．・２−；−シノFIG. 1 is a longitudinal sectional view showing one embodiment of the catalytic converter of the present invention. FIG. 2 is a view taken from the direction of the arrow in FIG. 1. FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 1. FIG. 4 is a side view showing the ceramic catalyst carrier of FIG. 1. FIG. 5 is a longitudinal sectional view showing another embodiment of the catalytic converter of the present invention. FIG. 6 is a perspective view showing a state in which a corrugated plate and a flat plate are wound. FIG. 7 is a perspective view showing a metal catalyst carrier. FIG. 8 is an explanatory diagram showing the film-out phenomenon. [Explanation of symbols of main parts] 21.51, 55.57... Container 39.49... Metal catalyst carrier 41.61... Ceramic catalyst carrier. Patent applicant: Japan Radiator Co., Ltd., agent: Fumi Furuya, patent attorney 5.・2-;- Shino
Claims (2)
回して形成される金属製触媒担体を容器内に収容してな
る触媒コンバータにおいて、前記金属製触媒担体の排気
ガス流出端に、セラミック製触媒担体の排気ガス流入端
を当接したことを特徴とする触媒コンバータ。(1) In a catalytic converter in which a metal catalyst carrier formed by stacking a metal corrugated plate and a flat plate and winding them multiple times is housed in a container, exhaust gas flows out of the metal catalyst carrier. A catalytic converter characterized in that an exhaust gas inflow end of a ceramic catalyst carrier is brought into contact with an end thereof.
媒担体の軸方向長さの０．１〜０．２倍である特許請求
の範囲第１項記載の触媒コンバータ。(2) The catalytic converter according to claim 1, wherein the axial length of the ceramic catalyst carrier is 0.1 to 0.2 times the axial length of the metal catalyst carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304224A JPH01147109A (en) | 1987-11-30 | 1987-11-30 | Catalytic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62304224A JPH01147109A (en) | 1987-11-30 | 1987-11-30 | Catalytic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01147109A true JPH01147109A (en) | 1989-06-08 |
Family
ID=17930500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62304224A Pending JPH01147109A (en) | 1987-11-30 | 1987-11-30 | Catalytic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01147109A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693616A1 (en) * | 1994-07-22 | 1996-01-24 | Friedrich Boysen GmbH & Co. KG | Device for catalytic purification or decomposition of hot exhaust gases |
| WO1999056064A1 (en) * | 1998-04-30 | 1999-11-04 | Catalytica Combustion Systems, Inc. | Support structures for a catalyst |
| JP2010099604A (en) * | 2008-10-24 | 2010-05-06 | Kao Corp | Method for manufacturing film-like catalyst structure |
-
1987
- 1987-11-30 JP JP62304224A patent/JPH01147109A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693616A1 (en) * | 1994-07-22 | 1996-01-24 | Friedrich Boysen GmbH & Co. KG | Device for catalytic purification or decomposition of hot exhaust gases |
| WO1999056064A1 (en) * | 1998-04-30 | 1999-11-04 | Catalytica Combustion Systems, Inc. | Support structures for a catalyst |
| JP2010099604A (en) * | 2008-10-24 | 2010-05-06 | Kao Corp | Method for manufacturing film-like catalyst structure |
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