JPH04271846A - Catalyst carrier for exhaust gas purifying device and its manufacture - Google Patents
Catalyst carrier for exhaust gas purifying device and its manufactureInfo
- Publication number
- JPH04271846A JPH04271846A JP3058205A JP5820591A JPH04271846A JP H04271846 A JPH04271846 A JP H04271846A JP 3058205 A JP3058205 A JP 3058205A JP 5820591 A JP5820591 A JP 5820591A JP H04271846 A JPH04271846 A JP H04271846A
- Authority
- JP
- Japan
- Prior art keywords
- corrugated
- carrier
- exhaust gas
- catalyst
- shape
- 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 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000746 purification Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 230000008646 thermal stress Effects 0.000 abstract description 6
- 210000004027 cell Anatomy 0.000 description 18
- 239000012050 conventional carrier Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000002777 columnar cell Anatomy 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 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
- F01N3/2803—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
- F01N3/2814—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates all sheets, plates or foils being corrugated
-
- 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
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、排気ガス浄化装置用の
触媒の担体およびその製造方法に関する。すなわち、例
えば自動車エンジン等の排気ガスを清浄化する触媒コン
バータに用いられ、担持母体として触媒が付着される担
体およびその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalyst carrier for an exhaust gas purification device and a method for producing the same. That is, the present invention relates to a carrier used in a catalytic converter for purifying exhaust gas from, for example, an automobile engine, to which a catalyst is attached as a carrier, and a method for manufacturing the same.
【０００２】0002
【従来の技術】図４は、この種従来例の説明に供する斜
視説明図であり、（１）図はその波板１と平板２を示し
、（２）図は全体の断面形状が真円のロール状をなす担
体３を示す。すなわち同図にも示すように、従来の排気
ガス浄化装置用の触媒の担体３は、帯状をなす金属製の
波板１と帯状をなす金属製の平板２とが、交互に位置す
るように組み合わせ巻き付けて接合され、略ハニカム構
造をなすとともに全体の断面形状が真円，略楕円等のロ
ール形状をなしていた。そしてこのような従来の担体３
において、その波板１としては一般に、連続的に折曲形
成された波形がその帯状の辺に対して直角、つまり幅方
向に沿って設けられたものが用いられていた。そしてこ
のような担体３は、例えば自動車エンジン等の排気ガス
を清浄化する触媒コンバータに用いられ、担持母体とし
てその波板１および平板２の表面に触媒が付着せしめら
れ、もって、車輌運転時等において自動車エンジンから
の有害物質を含みかつ高温の排気ガスが、その略ハニカ
ム構造中を通過することにより、付着せしめられた触媒
と反応し清浄化されていた。[Prior Art] Fig. 4 is a perspective explanatory view for explaining a conventional example of this kind, in which (1) the corrugated plate 1 and the flat plate 2 are shown, and (2) the overall cross-sectional shape is a perfect circle. The carrier 3 is shown in the form of a roll. That is, as shown in the same figure, the conventional catalyst carrier 3 for an exhaust gas purification device is constructed such that a band-shaped metal corrugated plate 1 and a band-shaped metal flat plate 2 are alternately positioned. They were combined and wound and joined to form a substantially honeycomb structure, and the overall cross-sectional shape was a roll shape, such as a perfect circle or a substantially ellipse. And such conventional carrier 3
In general, the corrugated sheet 1 used is one in which continuously bent corrugations are provided at right angles to the strip-shaped sides, that is, along the width direction. Such a carrier 3 is used, for example, in a catalytic converter that purifies exhaust gas from an automobile engine, etc., and a catalyst is attached to the surfaces of the corrugated plate 1 and the flat plate 2 as a supporting body, so that it can be used during vehicle operation, etc. In this system, high-temperature exhaust gas containing harmful substances from an automobile engine passes through the approximately honeycomb structure, reacts with the deposited catalyst, and is purified.
【０００３】0003
【発明が解決しようとする課題】ところで、このような
従来の排気ガス浄化装置用の触媒の担体３にあっては、
次の問題が指摘されていた。第１に、この従来の担体３
には平板２が用いられているが、係る担体３を、高温の
排気ガスが通過する等高温下で使用した場合、平板２に
熱応力が集中し、亀裂等が発生しやすかった。もって平
板２の耐久性が悪く、担体３全体としても耐久性に問題
があった。[Problems to be Solved by the Invention] By the way, in such a conventional catalyst carrier 3 for an exhaust gas purification device,
The following issues were pointed out. First, this conventional carrier 3
A flat plate 2 is used, but when such a carrier 3 is used at a high temperature such as when high-temperature exhaust gas passes through, thermal stress is concentrated on the flat plate 2 and cracks are likely to occur. As a result, the durability of the flat plate 2 was poor, and the durability of the carrier 3 as a whole was also problematic.
【０００４】第２に、この従来の担体３は波板１と平板
２とを組み合わせていたので、剛性が低く、全体的に強
度面に問題があった。Secondly, since this conventional carrier 3 was a combination of the corrugated plate 1 and the flat plate 2, its rigidity was low and there was a problem in overall strength.
【０００５】第３に、この従来の担体３の略ハニカム構
造は、前記した形状の波形よりなる波板１と平板２との
組み合わせにより形成され、その中空柱状の各セル４ど
うしが、流路方向に沿い直線平行的に配されていたので
、このような各セル４内を通過する排気ガスが整流され
てしまい、その流れが一定のため、触媒の浄化性能が低
く、排気ガスの浄化効率が悪いという問題が指摘されて
いた。Thirdly, the approximately honeycomb structure of this conventional carrier 3 is formed by a combination of the corrugated plate 1 having the above-mentioned corrugated shape and the flat plate 2, and each hollow columnar cell 4 is connected to a flow path. Since they are arranged straight and parallel along the direction, the exhaust gas passing through each cell 4 is rectified and the flow is constant, so the purification performance of the catalyst is low and the exhaust gas purification efficiency is low. It was pointed out that there was a problem with poor performance.
【０００６】第４に、この担体３は、自動車エンジン等
の排気ガス浄化装置用に使用されるので、多くの場合そ
の容積・形状等が制約を受ける。さてそこで、前述した
第３の問題点の改善策として触媒の浄化性能を向上させ
るためには、まず従来の担体３について、略ハニカム構
造の各セル４のサイズをより小さくしセル４の数を多く
密にすることが考えられるが、このような略ハニカム構
造の担体３は製造が面倒でありコスト面に問題が生じる
ことになる。又従来の担体３について、軸方向つまり長
手方向の長さをより長く伸ばしその容積を増加せしめる
ことも考えられるが、このような担体３は材料がかさむ
等により、やはりコスト面に問題が生じるようになる。Fourthly, since the carrier 3 is used for an exhaust gas purification device for an automobile engine or the like, its volume, shape, etc. are often limited. Now, in order to improve the purification performance of the catalyst as a measure to improve the third problem mentioned above, first, with respect to the conventional carrier 3, the size of each cell 4 of the approximately honeycomb structure is made smaller, and the number of cells 4 is increased. Although it is conceivable to make the carrier 3 denser, it is troublesome to manufacture the carrier 3 having such a substantially honeycomb structure, and this poses a problem in terms of cost. It is also conceivable to extend the length of the conventional carrier 3 in the axial direction, that is, the longitudinal direction, to increase its volume, but such a carrier 3 would still pose problems in terms of cost due to the bulk of the material. become.
【０００７】本発明は、このような実情に鑑み上記従来
例の問題点を解決すべくなされたものであって、隣接す
るものの波形の形状が異なるとともに、少なくとも一方
はその波形が帯状の辺に対し傾斜して設けられた波板を
用いてなることにより、第１に、平板を用いないため耐
久性が向上し、第２に、剛性が高く強度面に優れ、第３
に、触媒の浄化性能が向上し、第４に、しかもこれはセ
ル数を多くしたり容積を増加させることなく実現できる
、排気ガス浄化装置用の触媒の担体およびその製造方法
を提案することを目的とする。The present invention has been made in view of the above-mentioned circumstances in order to solve the problems of the conventional example. On the other hand, by using corrugated plates installed at an angle, firstly, the durability is improved since a flat plate is not used, secondly, the rigidity is high and the strength is excellent;
Second, the purification performance of the catalyst is improved, and fourth, the purpose is to propose a catalyst carrier for an exhaust gas purification device and a method for manufacturing the same, which can be achieved without increasing the number of cells or increasing the volume. purpose.
【０００８】[0008]
【課題を解決するための手段】この目的を達成する本発
明の技術的手段は、次のとおりである。まず請求項１に
ついては次のとおり。すなわち、この排気ガス浄化装置
用の触媒の担体は、帯状をなす金属製よりなり隣接する
ものの波形の形状が異なる波板が、交互に位置するよう
に組み合わせて巻き付けられるとともに接合されてなる
。そして略ハニカム構造をなすとともに全体がロール状
をなし、該波板の少なくとも一方は、その連続的に折曲
形成された波形が帯状の辺に対し傾斜して設けられてい
る。次に請求項２については次のとおり。すなわちこの
製造方法は、帯状をなす金属製の波板であって隣接する
ことになるものの波形の形状が異なり、かつ該波板の少
なくとも一方は、その連続的に折曲形成された波形が帯
状の辺に対し傾斜して設けられているものを準備する工
程と、しかる後、該波板を隣接するもの波形の形状が異
なるよう交互に位置すべく組み合わせて巻き付けるとと
もに接合し、もって、略ハニカム構造をなすとともに全
体がロール状をなす排気ガス浄化装置用の触媒の担体を
成形する工程と、を有してなる。[Means for Solving the Problems] The technical means of the present invention to achieve this object are as follows. First, claim 1 is as follows. That is, the carrier of the catalyst for this exhaust gas purification device is made of metal in the shape of a band, and is made of adjacent corrugated plates having different waveforms, which are wound and bonded together so that they are alternately positioned. The corrugated sheet has a substantially honeycomb structure and is roll-shaped as a whole, and at least one of the corrugated sheets has a continuously bent waveform inclined with respect to the side of the band. Next, regarding claim 2, it is as follows. In other words, in this manufacturing method, adjacent corrugated metal plates having a strip shape have different wave shapes, and at least one of the corrugated plates has a continuously bent corrugated shape. After that, the corrugated plates are arranged alternately so that adjacent corrugated plates have different wave shapes, and are then wrapped and bonded to form a substantially honeycomb. and a step of molding a catalyst carrier for an exhaust gas purification device which has a structure and has a roll shape as a whole.
【０００９】[0009]
【作用】本発明は、このような手段よりなるので次のご
とく作用する。まず請求項１の排気ガス浄化装置用の触
媒の担体は、隣接するものの波形の形状が異なるととも
に、少なくとも一方はその波形が帯状の辺に対し傾斜し
て設けられた波板を用い、これらを交互に巻き付けて接
合した、略ハニカム構造のロール状よりなる。又請求項
２のその製造方法は、上記波板を準備した後、これを交
互に巻き付けて接合することにより、略ハニカム構造で
ロール状の担体が成形される。そして排気ガスは、この
ような略ハニカム構造の担体を通過することにより、付
着せしめられた触媒と反応して清浄化される。そこで次
のようになる。[Operation] Since the present invention is comprised of such means, it operates as follows. First, the catalyst carrier for an exhaust gas purification device according to claim 1 uses a corrugated plate in which adjacent ones have different waveform shapes, and at least one of the corrugated plates is provided with the waveform inclined with respect to the side of the strip. It consists of a roll with a roughly honeycomb structure that is alternately wound and bonded. Further, in the manufacturing method of claim 2, after preparing the corrugated sheets, the corrugated sheets are alternately wound and joined to form a roll-shaped carrier having a substantially honeycomb structure. The exhaust gas is purified by passing through the substantially honeycomb-structured carrier and reacting with the attached catalyst. So it becomes as follows.
【００１０】第１に、この担体は、平板を用いず波板の
みを組み合わせて用いてなるので、高温の排気ガスが通
過する等高温下で使用された場合、熱応力は全体的に緩
和・吸収され、一部に集中しない。そこで亀裂等は発生
せず、耐久性が向上する。第２に、この担体は平板を用
いず異なった波形の波板のみを組み合わせてなるので、
剛性が高く強度面に優れている。First, since this carrier is made up of only corrugated plates without using flat plates, when it is used at high temperatures such as when high-temperature exhaust gas passes through, thermal stress is generally relaxed. Absorbed and not concentrated in one part. Therefore, cracks and the like do not occur, and durability is improved. Second, since this carrier does not use flat plates but only combines corrugated plates with different waveforms,
High rigidity and excellent strength.
【００１１】第３に、この担体は、隣接する波板の波形
の形状が異なるとともに、少なくとも一方は、その波形
が帯状の辺に対し傾斜したいわゆるヘリカル形状の波板
を用いて、略ハニカム構造に形成されている。そこで排
気ガスは、その各セルを通過する際流れの方向が変化し
て乱流が生じ、特に単一のセル内だけでなく隣接するセ
ル内にも適宜途中で変位して通過するようになるので乱
流が顕著に発生し、触媒とより多く反応するので、触媒
の浄化性能が著しく向上する。第４に、しかもこれは、
各セルのサイズを特に小さくしその数をより多く密にす
ることなく、又、軸方向の長さをより長くしその容積を
増加させることもなく実現できる等、この担体は、この
面からも簡単容易に製造可能である。Thirdly, this carrier has a substantially honeycomb structure by using a so-called helical corrugated plate in which the adjacent corrugated plates have different waveform shapes, and at least one of the corrugated plates has a so-called helical shape in which the waveform is inclined with respect to the side of the strip. is formed. Therefore, when the exhaust gas passes through each cell, the flow direction changes and turbulence occurs, and in particular, the exhaust gas is displaced not only within a single cell but also into adjacent cells along the way. As a result, significant turbulence occurs and more reaction occurs with the catalyst, resulting in a marked improvement in the purification performance of the catalyst. Fourth, and this is
This carrier is advantageous from this point of view, as it can be realized without particularly reducing the size of each cell and increasing the number of cells, and without increasing the axial length and increasing its volume. It is simple and easy to manufacture.
【００１２】0012
【実施例】以下本発明を、図面に示すその実施例に基づ
いて詳細に説明する。図１は本発明の実施例の説明に供
する平面図であり、（１）図はその波板５の１例を、（
２）図はその波板５の他例を、（３）図はその波板５の
更に他例をそれぞれ示す。図２は同実施例の説明に供す
る斜視説明図であり、（１）図はその波板５の組み合わ
せの１例を示し、（２）図は全体の断面形状が真円のロ
ール状をなす担体６を示す。図３は同実施例の説明に供
する斜視説明図であり、（１）図はその波板５の組み合
わせの他例を示し、（２）図はその波板５，１の組み合
わせの更に他例を示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below based on embodiments shown in the drawings. FIG. 1 is a plan view for explaining an embodiment of the present invention, and (1) shows an example of the corrugated plate 5.
2) The figure shows another example of the corrugated plate 5, and the figure (3) shows still another example of the corrugated plate 5. FIG. 2 is a perspective explanatory view for explaining the same embodiment, in which (1) the figure shows one example of the combination of the corrugated sheets 5, and (2) the figure shows a roll shape with an overall cross-sectional shape of a perfect circle. A carrier 6 is shown. FIG. 3 is a perspective explanatory view for explaining the same embodiment, in which (1) the figure shows another example of the combination of the corrugated plates 5, and (2) the figure shows still another example of the combination of the corrugated plates 5 and 1. shows.
【００１３】まず製造方法について説明する。この製造
方法では、帯状をなす金属製よりなり、その連続的に折
曲形成された波形が帯状の辺７に対し傾斜して設けられ
た波板５が準備される。波板５は、帯状をなすステンレ
ス箔等の金属箔をコルゲート加工，プレス加工等するこ
とにより、所定ピッチと高さの凹凸つまり山と谷が連続
的に多数折曲形成された波形をなすとともに、この波板
５の波形は、長手方向の帯状の辺７に対し傾斜したいわ
ゆるヘリカル形状に設けられている。すなわちこの波板
５の波形は、従来の波板１（図４の（１）図参照）のよ
うに帯状の辺に対し直角つまり幅方向に沿って設けられ
ず、傾斜したヘリカル形状に設けられている。このよう
な波板５の傾斜した波形としては各種形態のものが可能
であり、図１の（１）図には、すべての山と谷が直線的
に設けられ途中に折目８がないものが示され、図１の（
２）図には、すべての山と谷について途中の長手方向に
沿った例えば中心線上で折り返された折目８が１本形成
され、各山と谷が折目８を中心に反対方向に折られ対称
的に配されたものが示され、図１の（３）図には、この
ような折目８が長手方向に沿って２本設けられるととも
に、折目８間および折目８と辺７間の間隔が等間隔でな
くすべてランダムに異なって設定されたものが示されて
いる。勿論波板５の波形は、この図１に示したもの以外
にも各種可能であり、例えば折目８を３本以上形成した
もの、折目８および辺７間の間隔をすべて等間隔とした
もの、一部等間隔としたもの、すべて異なるように設定
したもの、等々が考えられる。First, the manufacturing method will be explained. In this manufacturing method, a corrugated sheet 5 is prepared which is made of metal and has a band-like shape, and whose continuously bent corrugations are inclined with respect to the sides 7 of the band. The corrugated plate 5 is formed by corrugating, pressing, etc. a strip-shaped metal foil such as stainless steel foil to form a corrugated shape in which a large number of concavities and convexities of a predetermined pitch and height, that is, peaks and valleys are continuously bent. The waveform of this corrugated plate 5 is provided in a so-called helical shape which is inclined with respect to the strip-shaped side 7 in the longitudinal direction. That is, the corrugations of this corrugated sheet 5 are not provided perpendicularly to the strip-shaped sides, that is, along the width direction, as in the conventional corrugated sheet 1 (see figure (1) in FIG. 4), but are provided in an inclined helical shape. ing. The inclined waveform of the corrugated sheet 5 can take various forms, and the one shown in (1) of FIG. is shown, and (
2) In the figure, one fold 8 is formed along the longitudinal direction of every peak and valley, for example, on the center line, and each peak and valley is folded in the opposite direction around the fold 8. In FIG. 1 (3), two such folds 8 are provided along the longitudinal direction, and there are gaps between the folds 8 and between the folds 8 and the sides. 7 is shown in which the intervals are not set at equal intervals but are all randomly set. Of course, the waveform of the corrugated plate 5 can be of various types other than those shown in FIG. Some of them may be set at equal intervals, some may be set at different intervals, and so on.
【００１４】そしてこの製造方法では、少なくとも一方
はこのような波板５、つまり、連続的に折曲形成された
波形が帯状の辺７に対し傾斜して設けられたヘリカル形
状のものが準備される。そして更にこの製造方法では、
帯状をなす金属製で隣接することになるものの波形の形
状が異なるものとして準備される。すなわち図２に示し
た例では、その（１）図に示したごとく、ヘリカル形状
の波板５（前述の図１の（２）図に示した折目８が中心
線上に形成されたもの）が、切断等により２枚等複数枚
用意され、かつ、これらが図示のごとく逆方向に組み合
わせて重ねられることにより、内外で隣接することにな
るものの波形の形状が２種類に異なるように準備される
。なお、このような図２の（１）図に示した例以外にも
、内外で隣接することになるものの波形の形状が異なる
ように組み合わせることは、各種可能である。例えば図
３の（１）図に示したように、１枚の長目のヘリカル形
状の波板５を途中で１８０度反転させ、折り返して重ね
ることによっても、隣接する波形の形状が２種類に異な
るものの組み合わせが得られる。更に例えば図３の（２
）図に示したように、ヘリカル形状の波板５と、従来よ
りの波板１（図４の（１）図も参照）とを組み合わせる
ことも考えられる。つまり、波形が辺７に対し傾斜した
波板５と、波形が辺７に対して直角で幅方向に沿った波
板１とを組み合わせることによっても、隣接する波形の
形状が２種類に異なるものの組み合わせが得られる。In this manufacturing method, at least one of the corrugated plates 5 is prepared, that is, a helical-shaped plate in which the continuously bent corrugations are inclined with respect to the strip-shaped sides 7. Ru. Furthermore, with this manufacturing method,
Adjacent strips of metal are prepared with different waveforms. In other words, in the example shown in FIG. 2, the corrugated plate 5 has a helical shape as shown in FIG. 1 (1) (the fold 8 shown in FIG. However, a plurality of sheets, such as two sheets, are prepared by cutting, etc., and these are combined and stacked in opposite directions as shown in the figure, so that the shapes of the waveforms of the adjacent ones inside and outside are different. Ru. In addition to the example shown in FIG. 2 (1), various combinations are possible such that the waveforms of adjacent elements inside and outside have different shapes. For example, as shown in Figure 3 (1), two types of adjacent wave shapes can be created by inverting one long helical corrugated plate 5 midway through 180 degrees, folding it back, and overlapping it. You get a combination of different things. Furthermore, for example, (2
) As shown in the figure, it is also conceivable to combine the helical-shaped corrugated plate 5 and the conventional corrugated plate 1 (see also figure (1) in FIG. 4). In other words, by combining the corrugated sheet 5 whose waveform is inclined with respect to the side 7 and the corrugated sheet 1 whose corrugation is perpendicular to the side 7 and along the width direction, the shapes of the adjacent corrugations are different in two types. You get a combination.
【００１５】しかる後この製造方法では、内外で隣接す
るものの波形の形状が異なるよう交互に位置すべく組み
合わせた、このような波板５，５又は波板５のみ又は波
板５と波板１等は、例えば図２の（２）図のように１定
中心点から重ねて巻き付けられる。そしてこれとともに
相互の当接部分、つまり内外で隣接する波形の凹凸であ
る山と谷の当接部分が、その全部又は一部についてろう
材にて接合され、もって、略ハニカム構造をなすととも
に全体がロール状をなす担体６が成形される。図示例で
は、全体の断面形状が真円のロール状をなす担体６が得
られる。９は、このような担体６が挿入保持される外筒
たるケースである。Thereafter, in this manufacturing method, such corrugated sheets 5, 5, only the corrugated sheet 5, or the corrugated sheet 5 and the corrugated sheet 1 are combined so that the adjacent ones inside and outside are arranged alternately so that the shapes of the corrugations are different. etc., are wound overlappingly from one constant center point, for example, as shown in FIG. 2 (2). At the same time, all or part of the mutual abutting parts, that is, the abutting parts of the peaks and valleys, which are adjacent inner and outer corrugated irregularities, are joined with brazing material, thereby forming a substantially honeycomb structure and forming the entire structure. A carrier 6 in the form of a roll is formed. In the illustrated example, the carrier 6 is obtained in the form of a roll with an overall cross-sectional shape of a perfect circle. Reference numeral 9 denotes a case serving as an outer cylinder into which such a carrier 6 is inserted and held.
【００１６】さてこのような製造方法により、排気ガス
浄化装置用の触媒の担体６が製造される。すなわちこの
担体６は、帯状をなす金属製よりなり内外で隣接するも
のの波形の形状が異なる波板例えば５，５が、交互に位
置するように組み合わせて巻き付けられるとともに接合
され、略ハニカム構造をなすとともに全体が例えば断面
形状で真円のロール状をなし、少なくとも一方の波板５
は、その連続的に折曲形成された波形が帯状の辺に対し
傾斜して設けられたヘリカル形状をなす。そしてこの担
体６はヘリカル形状の波板５等がセル壁を形成し、略三
角形，略四角形，略台形，その他各種形状で傾斜しねじ
れた多数の中空柱状のセル１０の平面的集合体たる、略
ハニカム構造をなす。もってこの担体６は、重量比強度
に優れ軽量性とともに高い剛性・強度を備え、成形も容
易で表面積が大、つまりセル壁たる波板５等の表面積が
大である、等々の特性を備えてなる。もってこの担体６
は、例えば自動車エンジン等の排気ガスを清浄化する触
媒コンバータに用いられ、担持母体としてそのセル壁た
る波板５等の表面に、排気ガス中の有害物質を反応除去
する触媒が付着せしめられる。By this manufacturing method, the catalyst carrier 6 for an exhaust gas purification device is manufactured. That is, this carrier 6 is made of metal in the shape of a band, and has a substantially honeycomb structure in which corrugated plates 5, 5, which are adjacent to each other on the inside and outside but have different wave shapes, are wound and bonded in combination so that they are alternately positioned. At least one of the corrugated sheets 5
has a helical shape in which the continuously bent waveform is inclined with respect to the side of the strip. The carrier 6 is a planar assembly of a large number of hollow columnar cells 10 that are tilted and twisted in substantially triangular, substantially quadrangular, substantially trapezoidal, and various other shapes, with helical-shaped corrugated plates 5 and the like forming cell walls. It has a roughly honeycomb structure. Therefore, this carrier 6 has characteristics such as excellent strength to weight ratio, light weight, high rigidity and strength, easy molding, and a large surface area, that is, a large surface area of the corrugated plate 5, etc., which is the cell wall. Become. Most important carrier 6
is used, for example, in a catalytic converter to purify exhaust gas from an automobile engine, etc., and a catalyst for removing harmful substances in the exhaust gas by reaction is adhered to the surface of the corrugated plate 5, which is the cell wall, as a carrier.
【００１７】本発明に係る排気ガス浄化装置用の触媒の
担体６およびその製造方法は、以上説明したようになっ
ている。そこで以下のごとくなる。The catalyst carrier 6 for an exhaust gas purification device and the manufacturing method thereof according to the present invention are as described above. Therefore, it becomes as follows.
【００１８】まずこの排気ガス浄化装置用の触媒の担体
６は、隣接するものの波形の形状が異なるとともに、少
なくとも一方はその波形が帯状の辺に対し傾斜して設け
られたヘリカル形状の波板５を用い、これらを交互に巻
き付けて接合した、略ハニカム構造のロール状よりなる
。又その製造方法は、上記波板５等を準備した後、これ
を交互に巻き付けて接合することにより、略ハニカム構
造でロール状の担体６が成形される。そしてこの担体６
は、例えば自動車エンジン等の排気ガスを清浄化する触
媒コンバータに用いられ、車輌運転時等において自動車
エンジンからの有害物質を含む高温の排気ガスは、この
ような略ハニカム構造の担体６を通過することにより、
付着せしめられた触媒と反応して清浄化される。そこで
この担体６は、次の第１，第２，第３，第４のようにな
る。First, the catalyst carriers 6 for this exhaust gas purification device have different corrugated shapes between adjacent ones, and at least one of them is a helical corrugated plate 5 in which the corrugated shapes are inclined with respect to the sides of the strip. It consists of a roll with a roughly honeycomb structure, which is made by alternately winding and bonding these together. The manufacturing method is such that after preparing the corrugated plates 5 and the like, they are alternately wound and joined to form a roll-shaped carrier 6 having a substantially honeycomb structure. And this carrier 6
is used, for example, in a catalytic converter that purifies exhaust gas from an automobile engine, etc., and when the vehicle is operated, high-temperature exhaust gas containing harmful substances from the automobile engine passes through the carrier 6 having a substantially honeycomb structure. By this,
It is cleaned by reacting with the deposited catalyst. Therefore, this carrier 6 becomes the following first, second, third, and fourth carriers.
【００１９】第１に、この担体６は、この種従来例のよ
うに平板２（図４参照）を用いず所定の波板５等のみを
用いてなる。そこで、高温の排気ガスが通過する等高温
下で使用された場合、全体的に熱応力が緩和・吸収され
るため、従来の平板２のように熱応力は集中しない。そ
こでこの担体６は、部分的に、亀裂等は発生せず耐久性
が向上する。First, the carrier 6 does not use the flat plate 2 (see FIG. 4) unlike the conventional example of this type, but only uses a predetermined corrugated plate 5 or the like. Therefore, when used under high temperature conditions such as when high-temperature exhaust gas passes through, the thermal stress is relaxed and absorbed as a whole, so the thermal stress is not concentrated as in the conventional flat plate 2. Therefore, this carrier 6 is partially free from cracks and has improved durability.
【００２０】第２に、この担体６は平板２を用いず、異
なった波形の波板５等のみを組み合わせて用いてなるの
で、剛性が高く強度面に優れている。つまり従来の平板
２と波板１とを組み合わせて用いた従来例（図４参照）
に比し、剛性そして強度面に優れている。Secondly, since this carrier 6 does not use the flat plate 2 but only uses a combination of corrugated plates 5 of different waveforms, etc., it has high rigidity and excellent strength. In other words, a conventional example in which a conventional flat plate 2 and a corrugated plate 1 are used in combination (see Fig. 4).
It has superior rigidity and strength.
【００２１】第３に、この排気ガス浄化装置用の触媒の
担体６は、隣接する波形の形状が異なるとともに、少な
くとも一方は、その波形が帯状の辺７に対して傾斜した
いわゆるヘリカル形状の波板５を用いて、略ハニカム構
造に形成されている。そこで排気ガスは、このようなヘ
リカル形状の波板５等をセル壁として形成され各々直線
的でなく傾斜しねじれた各セル１０内を通過する際、流
れの方向が変化して乱流が生じ、特に単一のセル１０内
だけでなく隣接する他のセル１０内にも適宜途中で変位
して通過するようになるので乱流が顕著に発生し、従来
例と同一容積とした場合触媒との接触面積が増加する。
このようにこの担体６によると、触媒の浄化性能が著し
く向上する。Thirdly, in the catalyst carrier 6 for the exhaust gas purification device, the adjacent waveforms have different shapes, and at least one of the waveforms has a so-called helical shape in which the waveform is inclined with respect to the strip-shaped side 7. The plate 5 is used to form a substantially honeycomb structure. Therefore, when the exhaust gas passes through each cell 10, which is formed with such a helical-shaped corrugated plate 5 as a cell wall and is not linear but tilted and twisted, the flow direction changes and turbulence occurs. In particular, since the flow passes through not only a single cell 10 but also other adjacent cells 10 with appropriate displacement along the way, significant turbulence occurs, and when the volume is the same as that of the conventional example, the catalyst contact area increases. According to this carrier 6, the purification performance of the catalyst is thus significantly improved.
【００２２】第４に、しかもこれは、各セル１０のサイ
ズをこの種従来例のように特に小さくしその数をより多
く密にすることなく、又、軸方向の長さをより長くしそ
の容積を増加させることもなく実現される。すなわちこ
の担体６は、所定のごとく波板５等を準備して成形する
ことにより簡易容易に製造可能である。Fourthly, this method does not particularly reduce the size of each cell 10 and increase the number of cells as in the conventional example of this type, and also increases the length in the axial direction. This is achieved without increasing the volume. That is, this carrier 6 can be simply and easily manufactured by preparing and molding the corrugated plate 5 as prescribed.
【００２３】なお、例えば図１の（２）図，（３）図等
に示されたごとく、折目８が形成された波板５が用いら
れた場合には、折目８にて波板５に特に高い剛性が与付
され、もって、そのような担体６は極めて強度面に優れ
るという利点がある。又、図２の（２）図に示した担体
６は、１個の一定中心点から波形の異なる波板５等が重
ねて巻き付けられるとともに接合され、もって、断面形
状が真円のロール状に成形されている。しかし本発明は
これに限定されるものではなく、例えば、２個の中心点
を用いこの間に、重ねられた複数組の波形の異なる波板
５等の中央部を挟み込んで、同一方向に巻き付けるとと
もに接合したロール状の担体６も考えられる。なお、こ
の２個の中心点が対向位置している場合には、断面形状
が真円のロール状に成形され、２個の中心点がずれて位
置している場合には、断面形状が略楕円のロール状に成
形される。そしてこのような担体６にあっては、個々の
波板５等の長さが短いので、巻き付け時の位置決めが容
易であるとともに位置決めの狂いもなく、又巻き取り量
も少ないので巻き取り力に左右されることがなく、更に
巻き取り力も個々の波板５等に分散して加わるので、変
形が少なく強度および精度に極めて優れるという利点が
ある。更にこのような担体６は、使用に際し応力が、ケ
ース９面に対し大きく傾斜した方向から各波板５等に作
用するとともに、個々の波板５等に分散されるので、ケ
ース９と剥離しにくく、略ハニカム構造の潰れも防止さ
れ、この面からも強度および精度に優れるという利点も
ある。In addition, when the corrugated sheet 5 with the folds 8 formed therein is used, as shown in FIG. Particularly high rigidity is imparted to the carrier 5, so that such a carrier 6 has the advantage of being extremely strong. In addition, the carrier 6 shown in FIG. 2 (2) is formed by winding and bonding corrugated plates 5 and the like having different waveforms from one constant center point, so that the carrier 6 has a perfect circular cross-sectional shape. Molded. However, the present invention is not limited to this, and for example, by using two center points, sandwiching the center portions of multiple sets of stacked corrugated sheets 5 with different waveforms between them, and winding them in the same direction. A bonded rolled carrier 6 is also conceivable. In addition, if these two center points are located opposite each other, the cross-sectional shape will be formed into a roll shape of a perfect circle, and if the two center points are located offset, the cross-sectional shape will be approximately Formed into an oval roll. In such a carrier 6, since the length of each corrugated plate 5 etc. is short, positioning during winding is easy and there is no misalignment of positioning, and the amount of winding is small, so the winding force is reduced. Furthermore, since the winding force is distributed and applied to the individual corrugated sheets 5, etc., there is an advantage that deformation is small and the strength and precision are extremely excellent. Furthermore, when such a carrier 6 is used, stress acts on each corrugated plate 5 etc. from a direction greatly inclined with respect to the case 9 surface and is dispersed to each corrugated plate 5 etc., so that it does not peel off from the case 9. It is difficult to prevent the honeycomb structure from collapsing, and has the advantage of being excellent in strength and precision in this respect as well.
【００２４】[0024]
【発明の効果】本発明に係る請求項１および請求項２の
排気ガス浄化装置用の触媒の担体およびその製造方法は
、以上説明したごとく、隣接する波形の形状が異なると
ともに、少なくとも一方はその波形が帯状の辺に対し傾
斜して設けられた波板を用いてなることにより、次の効
果を発揮する。Effects of the Invention As described above, in the catalyst carrier for an exhaust gas purification device and the manufacturing method thereof according to claims 1 and 2 of the present invention, adjacent waveforms have different shapes, and at least one of them has different shapes. By using a corrugated plate whose corrugations are inclined with respect to the sides of the strip, the following effects are achieved.
【００２５】第１に、耐久性に優れている。すなわち、
この担体は平板を用いず波板のみを組み合わせて用いて
なるので、高温の排気ガスが通過する等高温下で使用さ
れた場合、全体的に熱応力が緩和・吸収され、一部に集
中しないため、亀裂等が発生しにくく、耐久性が向上す
る。第２に、剛性が高く強度面に優れている。すなわち
、この担体は平板を用いず異なった波形の波板のみを組
み合わせてなるので、剛性が高く強度面に優れている。First, it has excellent durability. That is,
This carrier does not use flat plates but only corrugated plates, so when used at high temperatures such as when high-temperature exhaust gas passes through, thermal stress is relaxed and absorbed as a whole and is not concentrated in one part. Therefore, cracks are less likely to occur and durability is improved. Second, it has high rigidity and excellent strength. That is, since this carrier does not use flat plates but only combines corrugated plates with different waveforms, it has high rigidity and excellent strength.
【００２６】第３に、触媒の浄化性能が向上する。すな
わちこの担体は、通過する排気ガスに乱流が生じ触媒と
より多く反応するので、触媒の浄化性能が向上し、排気
ガスの浄化効率に優れている。第４に、しかもこれはコ
スト面に問題を生じることなく実現される。すなわちこ
のような担体は、各セルのサイズを特に小さく数をより
多く密にすることなく、又、軸方向つまり長手方向の長
さをより長くしその容積を増加させることもなく、所定
のごとく波板を準備して成形することにより、簡単容易
に製造でき、コスト面に問題を生じることもない。この
ようにこの種従来例に存した問題点が一掃される等、本
発明の発揮する効果は顕著にして大なるものがある。Thirdly, the purification performance of the catalyst is improved. In other words, this carrier causes turbulence in the exhaust gas passing through it and reacts more with the catalyst, so that the purification performance of the catalyst is improved and the exhaust gas purification efficiency is excellent. Fourth, this can be achieved without causing any cost problems. That is, such a carrier can be used in a specified manner without making the size of each cell particularly small and increasing the number of cells, and without increasing the axial or longitudinal length and increasing the volume. By preparing and molding a corrugated sheet, it can be manufactured simply and easily, and there is no cost problem. In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.
【図１】本発明に係る排気ガス浄化装置用の触媒の担体
およびその製造方法の実施例の説明に供する平面図であ
り、（１）図はその波板の１例を、（２）図はその波板
の他例を、（３）図はその波板の更に他例をそれぞれ示
す。FIG. 1 is a plan view for explaining an embodiment of a catalyst carrier for an exhaust gas purification device and a method for manufacturing the same according to the present invention; (1) shows an example of the corrugated plate; Figure (3) shows another example of the corrugated plate, and Figure (3) shows still another example of the corrugated plate.
【図２】同実施例の説明に供する斜視説明図であり、（
１）図はその波板の組み合わせの１例を示し、（２）図
は全体の断面形状が真円のロール状をなす担体を示す。FIG. 2 is a perspective explanatory view for explaining the same embodiment;
1) The figure shows an example of a combination of the corrugated plates, and (2) the figure shows a roll-shaped carrier with an overall cross-sectional shape of a perfect circle.
【図３】同実施例の説明に供する斜視説明図であり、（
１）図はその波板の組み合わせの他例を示し、（２）図
はその波板の組み合わせの更に他例を示す。FIG. 3 is a perspective explanatory view for explaining the same embodiment;
1) The figure shows another example of the combination of the corrugated sheets, and (2) the figure shows still another example of the combination of the corrugated sheets.
【図４】従来例の説明に供する斜視説明図であり、（１
）図はその波板と平板を示し、（２）図は全体の断面形
状が真円のロール状をなす担体を示す。FIG. 4 is a perspective explanatory view for explaining a conventional example;
Figure ) shows the corrugated plate and flat plate, and Figure (2) shows a roll-shaped carrier with a perfect circular cross-section.
１ 波板 ２ 平板 ３ 担体 ４ セル ５ 波板 ６ 担体 ７ 辺 ８ 折目 ９ ケース １０ セル 1 Corrugated plate 2 Flat plate 3 Carrier 4 Cell 5 Corrugated sheet 6 Carrier 7 Side 8 Fold 9 Case 10 Cell
Claims (2)
のの波形の形状が異なる波板が、交互に位置するように
組み合わせて巻き付けられるとともに接合され、略ハニ
カム構造をなすとともに全体がロール状をなし、該波板
の少なくとも一方は、その連続的に折曲形成された波形
が帯状の辺に対し傾斜して設けられていること、を特徴
とする排気ガス浄化装置用の触媒の担体。[Claim 1] Adjacent corrugated sheets made of metal in the shape of a band but having different corrugated shapes are wound and bonded together so as to be alternately positioned, forming a substantially honeycomb structure and having a roll shape as a whole. . A catalyst carrier for an exhaust gas purification device, characterized in that at least one of the corrugated plates has a continuously bent waveform inclined with respect to a side of the strip.
することになるものの波形の形状が異なり、かつ該波板
の少なくとも一方は、その連続的に折曲形成された波形
が帯状の辺に対し傾斜して設けられているものを準備す
る工程と、しかる後、該波板を隣接するものの波形の形
状が異なるよう交互に位置すべく組み合わせて巻き付け
るとともに接合し、もって、略ハニカム構造をなすとと
もに全体がロール状をなす排気ガス浄化装置用の触媒の
担体を成形する工程と、を有してなることを特徴とする
排気ガス浄化装置用の触媒の担体の製造方法。Claim 2: Metal corrugated plates in the shape of a strip, the corrugated shapes of adjacent ones being different, and at least one of the corrugated plates has a continuously bent corrugated shape that is in the shape of a strip. A step of preparing the corrugated sheets provided at an angle with respect to the sides, and then winding and bonding the corrugated sheets so that the corrugated sheets are arranged alternately so that the corrugated shapes of adjacent ones are different, thereby creating a substantially honeycomb structure. 1. A method for manufacturing a catalyst carrier for an exhaust gas purification device, comprising the steps of: molding a catalyst carrier for an exhaust gas purification device having a roll shape as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3058205A JPH04271846A (en) | 1991-02-28 | 1991-02-28 | Catalyst carrier for exhaust gas purifying device and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3058205A JPH04271846A (en) | 1991-02-28 | 1991-02-28 | Catalyst carrier for exhaust gas purifying device and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04271846A true JPH04271846A (en) | 1992-09-28 |
Family
ID=13077536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3058205A Pending JPH04271846A (en) | 1991-02-28 | 1991-02-28 | Catalyst carrier for exhaust gas purifying device and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04271846A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07163889A (en) * | 1993-08-05 | 1995-06-27 | Sulzer Chemtech Ag | Catalytic converter for exhaust gas from automobil, etc |
| JPH0947664A (en) * | 1995-05-31 | 1997-02-18 | Seda Giken:Kk | Catalytic reactor |
| JPH11257048A (en) * | 1998-03-12 | 1999-09-21 | Nisshin Steel Co Ltd | Metal filter for diesel engine |
| JP2004113335A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Ind Co Ltd | Deodorizing apparatus |
| US7351383B2 (en) * | 2000-10-04 | 2008-04-01 | Volvo Lastvagnar Ab | Device for catalytic treatment of a gas flow |
| EP3515592A4 (en) * | 2016-09-23 | 2020-05-27 | BASF Corporation | Catalyst substrates |
-
1991
- 1991-02-28 JP JP3058205A patent/JPH04271846A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07163889A (en) * | 1993-08-05 | 1995-06-27 | Sulzer Chemtech Ag | Catalytic converter for exhaust gas from automobil, etc |
| JPH0947664A (en) * | 1995-05-31 | 1997-02-18 | Seda Giken:Kk | Catalytic reactor |
| JPH11257048A (en) * | 1998-03-12 | 1999-09-21 | Nisshin Steel Co Ltd | Metal filter for diesel engine |
| US7351383B2 (en) * | 2000-10-04 | 2008-04-01 | Volvo Lastvagnar Ab | Device for catalytic treatment of a gas flow |
| JP2004113335A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Electric Ind Co Ltd | Deodorizing apparatus |
| EP3515592A4 (en) * | 2016-09-23 | 2020-05-27 | BASF Corporation | Catalyst substrates |
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