JPH05253493A - Low noise type metal carrier - Google Patents
Low noise type metal carrierInfo
- Publication number
- JPH05253493A JPH05253493A JP4055757A JP5575792A JPH05253493A JP H05253493 A JPH05253493 A JP H05253493A JP 4055757 A JP4055757 A JP 4055757A JP 5575792 A JP5575792 A JP 5575792A JP H05253493 A JPH05253493 A JP H05253493A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- metal carrier
- foil
- exhaust gas
- outer cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 title claims abstract description 39
- 239000011888 foil Substances 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000005219 brazing Methods 0.000 abstract description 15
- 239000000919 ceramic Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004323 axial length Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車エンジン等の内
燃機関から排出される排ガスを浄化するためのメタル担
体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal carrier for purifying exhaust gas discharged from an internal combustion engine such as an automobile engine.
【０００２】[0002]
【従来の技術】従来排気ガスを浄化するための触媒コン
バータにはセラミック担体が使用されたが、耐熱性、低
圧損および搭載性の点より最近はメタル担体の使用が増
加している。メタル担体は厚さ５０μｍ程度の耐熱金属
よりなる平箔と、この平箔を波形に加工した波箔とを渦
巻状に巻回あるいは交互に重ねて積層しハニカム体を作
り、これをステンレス鋼等の耐蝕、耐熱性金属で製造し
た外筒に収納固定して構成されている。このメタル担体
は白金、パラジュウム、ロジュウム等の排ガス浄化用の
貴金属を担持された後、例えば自動車エンジンの排ガス
系に搭載使用される。メタル担体は上記のような大きい
温度変化、激しい振動のある排気系に取付けられるた
め、平箔と波箔相互およびそれらより構成されるハニカ
ム体と外筒間は相互にロウ付け、レーザ溶接あるいは電
子ビーム等で接合されている。これによりメタル担体は
高耐熱性、低圧損、排ガス温度への早い応答性という特
徴を発揮でき広く使用されている。しかしメタル担体は
セラミックス担体に比較して、排気ガスにより発生する
放射音が大きいという問題があり、周辺に騒音を出すよ
うな使用は制限しなければならない場合がある。2. Description of the Related Art Conventionally, a ceramic carrier has been used for a catalytic converter for purifying exhaust gas, but recently, a metal carrier has been used more in view of heat resistance, low pressure loss and mountability. The metal carrier is a flat foil made of a heat-resistant metal having a thickness of about 50 μm, and a corrugated foil obtained by processing the flat foil into a corrugated form, which is wound or alternately laminated to form a honeycomb body, which is made of stainless steel or the like. It is configured by being housed and fixed in an outer cylinder made of corrosion-resistant and heat-resistant metal. This metal carrier is loaded with a noble metal for purifying exhaust gas such as platinum, palladium and rhodium, and then mounted and used in an exhaust gas system of an automobile engine, for example. Since the metal carrier is attached to the exhaust system that undergoes large temperature changes and severe vibrations as described above, flat foil and corrugated foil, and the honeycomb body composed of them and the outer cylinder are brazed to each other by laser welding or electronic welding. It is joined with beams. As a result, the metal carrier is widely used because it can exhibit the characteristics of high heat resistance, low pressure loss, and fast response to exhaust gas temperature. However, the metal carrier has a problem that the emission sound generated by the exhaust gas is larger than that of the ceramic carrier, and therefore, it may be necessary to limit the use to generate noise in the surroundings.
【０００３】[0003]
【発明が解決しようとする課題】本発明はメタル担体の
放射音が大きいという問題を解決するための低騒音型メ
タル担体を提供するものである。SUMMARY OF THE INVENTION The present invention provides a low noise metal carrier for solving the problem that the metal carrier emits a large amount of noise.
【０００４】[0004]
【課題を解決するための手段】本発明はメタル担体の放
射音を小さくするため、平箔と波箔を巻回あるいは積層
し、これらを相互に接合して形成したハニカム体とこれ
を収納する外筒よりなるメタル担体を用いて種々の実験
解析を行った。According to the present invention, in order to reduce the radiated sound of a metal carrier, a flat foil and a corrugated foil are wound or laminated and bonded to each other, and a honeycomb body is housed. Various experimental analyzes were conducted using a metal carrier consisting of an outer cylinder.
【０００５】エンジンからの排気ガス圧は、シリンダー
内での混合気の爆発により例えば４工程４シリンダーの
エンジンが３０００Ｒ／Ｍで回転している場合、基本波
は１００サイクル／秒変動している脈動圧であるが、そ
れに高周波が重畳された複雑な波形になっている。この
排気ガスはメタル担体のハニカム体に流入すると、ハニ
カム体のセルの大きさおよび長さに応じた定状波になっ
て行くが、その過渡期であるハニカム体の入口では平箔
と波箔が複雑に強く振動する。その結果、メタル担体の
放射音の原因はエンジン排ガスの圧力変動により、ハニ
カム体の平箔および波箔が振動し、その振動が外筒に伝
わり、外筒が共振するためであることが判明した。Exhaust gas pressure from the engine is pulsating because the fundamental wave fluctuates 100 cycles / second when an engine with four steps and four cylinders rotates at 3000 R / M due to the explosion of the air-fuel mixture in the cylinder. Although it is pressure, it has a complicated waveform in which high frequencies are superimposed. When this exhaust gas flows into the honeycomb body of the metal carrier, it becomes a regular wave according to the size and length of the cells of the honeycomb body. Vibrates strongly in a complicated manner. As a result, it was found that the cause of the radiated sound of the metal carrier is that the flat foil and the corrugated foil of the honeycomb body vibrate due to the pressure fluctuation of the engine exhaust gas, the vibration is transmitted to the outer cylinder, and the outer cylinder resonates. ..
【０００６】さらに排ガスの圧力変動は入側では大きい
が、出側では小さくなっていること。平箔と波箔がロウ
付け等で一体的に接合していると、音の伝達は強く、逆
に接合されていないと小さいこと、またハニカム体の接
合が密に行われている箇所で外筒と接合されていると外
筒の振動が大きくなる傾向があることが判明した。すな
わちハニカム体の表面には触媒を担持するため、セラミ
ックス層が形成されているが、平箔と波箔が金属的に接
合されている場合は、音は箔とセラミックスの両方を通
じて伝わることができるため、ダンピング効果のあるセ
ラミックスの効果より箔接合によるり影響が強く出るた
め、放射音が大きくなると推測される。Furthermore, the pressure fluctuation of the exhaust gas is large on the inlet side but small on the outlet side. When flat foil and corrugated foil are integrally joined by brazing etc., sound transmission is strong, and conversely, it is small unless joined, and when the honeycomb body is tightly joined, it is outside. It was found that the vibration of the outer cylinder tends to increase when it is joined to the cylinder. That is, a ceramic layer is formed on the surface of the honeycomb body to support the catalyst, but when the flat foil and the corrugated foil are metallically joined, sound can be transmitted through both the foil and the ceramic. Therefore, the effect of foil bonding is stronger than the effect of ceramics, which has a damping effect, and the radiated sound is presumed to be louder.
【０００７】一方平箔と波箔が接合されていない場合
は、箔間の音の伝幡はセラミックを通して行われること
になり、平箔−セラミックス−波箔系の伝達となり伝達
が悪くなり、また層間の摩擦による制振効果により音圧
レベルが下がると共に、高周波域の伝達も小さくなる。On the other hand, when the flat foil and the corrugated foil are not joined, the sound is transferred between the foils through the ceramic, and the flat foil-ceramic-corrugated foil system is transmitted, resulting in poor transmission. The sound pressure level is lowered by the damping effect due to the friction between the layers, and the transmission in the high frequency range is also reduced.
【０００８】またハニカム体と外筒の接合については、
ハニカム体の接合率が低い部分で行うと上記のようにハ
ニカム体からの音が小さいため、外筒の振動も小さくな
る。また接合率が高いすなわち音が大きい箇所を外筒と
接合しないで、縁を切れば、同部でも摩擦による制振効
果が期待でき、さらに効果的である。Regarding the joining of the honeycomb body and the outer cylinder,
When the operation is performed in the portion where the bonding rate of the honeycomb body is low, the sound from the honeycomb body is small as described above, and the vibration of the outer cylinder is also small. Further, if a portion having a high joining rate, that is, a loud sound is not joined to the outer cylinder but the edge is cut, a vibration damping effect due to friction can be expected even in the same portion, which is more effective.
【０００９】以上のことからメタル担体の放射音を小さ
くするには（１）ハニカム体の接合率の低い方を排気ガ
スの入側に配置すること、（２）外筒とハニカム体の接
合は、ハニカム体の接合率の低い箇所で行うことが必要
である。メタル担体の放射音を小さくする基本原理は以
上のようであるが、実際にはメタル担体には耐久性も要
求されるので、その点を配慮した担体構造を採用する必
要がある。ハニカム体の接合の度合を「接合率」で定義
する。接合率は平箔と波箔の全接点数に対してロウ付け
されている接点数の割合であり、この数字が大きいと接
合が多く行われることを意味する。From the above, in order to reduce the radiated sound of the metal carrier, (1) the one having a lower bonding rate of the honeycomb body is arranged on the inlet side of the exhaust gas, and (2) the bonding of the outer cylinder and the honeycomb body is performed. However, it is necessary to perform it at a place where the bonding rate of the honeycomb body is low. The basic principle of reducing the radiated sound of the metal carrier is as described above, but in reality, the metal carrier is also required to have durability, so it is necessary to adopt a carrier structure in consideration of this point. The degree of bonding of the honeycomb bodies is defined by "bonding rate". The bonding rate is the ratio of the number of contacts brazed to the total number of contacts of the flat foil and the corrugated foil, and a large number means that many bondings are performed.
【００１０】排気ガス入側の接合率については、圧力変
動の激しい排気ガス入側にハニカム体の接合率が低い部
分を配置すると、箔が微振動により欠損する恐れがあ
り、接合率は高い方が良いが、放射音が高くなる問題が
あり、その適正な範囲を調査した結果、接合率を５０％
以下にする必要があることが分かった。また接合率を５
０％以下にする軸方向の長さは、入側から８０％以内の
範囲にすれば、効果があることが分かった。さらにまた
ハニカム体の外筒へのロウ付け部は、接合率が５０％以
下と、強度的に弱い部分で行うと、箔が切断し、ハニカ
ム体が外筒よりずれる問題がある。これを解決するため
に、ハニカム体の最外層から内側へ５層以内で軸方向に
平箔と波箔が接合された外層強化層を、ハニカム体の接
合率が５０％以下の部分に設け、同部で外筒とロウ付け
すると、上記のようにハニカム体による音が小さくな
り、また耐久性が確保でき良好である。Regarding the bonding rate on the exhaust gas inlet side, if a portion of the honeycomb body having a low bonding rate is arranged on the exhaust gas inlet side where the pressure changes drastically, the foil may be damaged by microvibration, and the bonding rate is higher. Is good, but there is a problem that the radiated sound becomes high, and as a result of investigating the appropriate range, the bonding rate is 50%.
I found it necessary to: Also, the bonding rate is 5
It has been found that the axial length of 0% or less is effective if the axial length is within 80% from the entrance side. Furthermore, when the brazing portion of the honeycomb body to the outer cylinder has a bonding ratio of 50% or less at a weak strength portion, the foil is cut and the honeycomb body is displaced from the outer cylinder. In order to solve this, an outer layer reinforced layer in which a flat foil and a corrugated foil are bonded in the axial direction within 5 layers from the outermost layer to the inside of the honeycomb body is provided in a portion where the bonding rate of the honeycomb body is 50% or less, When the outer cylinder is brazed at the same portion, the noise due to the honeycomb body is reduced as described above, and the durability can be secured, which is good.
【００１１】以下本発明を詳細に説明する。図１は本発
明のメタル担体の取付状況を示す説明図であり、メタル
担体の一部を断面図にしている。すなわち、エンジンか
らの排気ガスは矢印Ａの方向からメタル担体１に流入す
る。その場合のメタル担体１のハニカム体２の接合構造
をロウ付けの場合を例として図２に示す。The present invention will be described in detail below. FIG. 1 is an explanatory view showing a mounting state of the metal carrier of the present invention, and a part of the metal carrier is shown in a sectional view. That is, the exhaust gas from the engine flows into the metal carrier 1 in the direction of arrow A. The joining structure of the honeycomb body 2 of the metal carrier 1 in that case is shown in FIG. 2 as an example of the case of brazing.
【００１２】図２において斜線部５は平箔３と波箔４は
相互に１００％ロウ付けされている箇所で、斜線が入っ
ていない部分６は接合率が５０％以下の部分である。６
の軸方向の長さは、ハニカム体全長の８０％以内とする
が、常に接合率が５０％以下の方を排ガス入側とする。
また１３はハニカム体２と外筒１２が接合されている箇
所を示す。In FIG. 2, a hatched portion 5 is a portion where the flat foil 3 and the corrugated foil 4 are brazed to each other 100%, and a portion 6 where there is no hatching is a portion where the bonding rate is 50% or less. 6
The axial length of the honeycomb body is 80% or less of the entire length of the honeycomb body, but the one having a bonding rate of 50% or less is always the exhaust gas inlet side.
Further, 13 indicates a portion where the honeycomb body 2 and the outer cylinder 12 are joined.
【００１３】このロウ付けが５０％以下の部分６のロウ
付け状況の例を図３に示す。平箔３と波箔４は、波箔の
山および谷の部分で接しているが、ロウ付けは９の一方
箇所のみで行い、波箔の山あるいは谷側の他方８ではロ
ウ付けしない。この場合、接合率５０％である。この応
用としては波箔１枚毎にロウ付けを行うのではなく、２
枚飛ばし、３枚飛ばしと接合率をさらに低くするため、
間引いてロウ付けすることができる。FIG. 3 shows an example of the brazing condition of the portion 6 where the brazing is 50% or less. The flat foil 3 and the corrugated foil 4 are in contact with each other at the peaks and troughs of the corrugated foil, but brazing is performed only at one side of the corrugated foil 9 and is not brazed at the other side 8 of the corrugated foil. In this case, the bonding rate is 50%. For this application, instead of brazing each corrugated foil, 2
In order to reduce the bonding rate by skipping three sheets and skipping three sheets,
Can be thinned and brazed.
【００１４】また図４のように１１の範囲は波箔の山お
よび谷の全ての接点でロウ付けしているが、１０の範囲
は全ての接点がロウ付けされていない。ハニカム体の全
面での１０と１１の比率を１：１あるいは２：１，３：
１にして接合率を５０％以下に調整することができる。
ハニカム体２と外筒１２とのロウ付け部１３は、上述の
ようにハニカム体の接合率が低い部分であれば、図５
（ａ），（ｂ）のように入口側あるいは中央部で差し支
えないが、常にハニカム体２の全接合部５よりも入側で
ロウ付けすることが必要である。次に本発明法の実施例
について述べる。Further, as shown in FIG. 4, the area 11 is brazed at all the contacts of the peaks and valleys of the corrugated foil, but the area 10 is not brazed at all the contacts. The ratio of 10 and 11 on the entire surface of the honeycomb body is 1: 1 or 2: 1, 3:
The bonding rate can be adjusted to 50% or less by setting it to 1.
As long as the brazing part 13 between the honeycomb body 2 and the outer cylinder 12 is a portion where the bonding rate of the honeycomb body is low as described above, FIG.
As in (a) and (b), there is no problem with the inlet side or the central portion, but it is always necessary to perform brazing on the inlet side with respect to all the joint portions 5 of the honeycomb body 2. Next, examples of the method of the present invention will be described.
【００１５】[0015]
【実施例】図６に外径Ｄ1 ＝１１６mm、高さＢ2 ＝１０
０mmのハニカム体２が、厚さｔ1＝２mm、外径Ｄ2 ＝１
２０mm、高さＢ1 ＝１００mmの外筒１２に収容されてい
るメタル担体１を示す。ハニカム体２の部分拡大部を図
７に示すが２０Ｃｒ−５Ａｌ系で幅Ｂ2 ＝１００mm、厚
さｔ2 ＝５０μｍの平箔３と、同じく２０Ｃｒ−５Ａ系
の幅Ｂ2 ＝１００mm、厚さｔ2 ＝５０μｍ、波高さｈ1
＝１．２mm、波ピッチｐ1 ＝２．４mmの波箔４が巻回さ
れ形成されているが、同ハニカム体２の内部は直径Ｄ2
＝１１０mm、高さＢ3 ＝８０mmの範囲は図３のようにロ
ウ付けされ、その接合率は５０％である。外筒１２とハ
ニカム体２間のロウ付け部１３は図５（ａ）の方法によ
っているが、軸方向長Ｂ4 は３０mmである。EXAMPLE FIG. 6 shows an outer diameter D 1 = 116 mm and a height B 2 = 10.
The honeycomb body 2 having a thickness of 0 mm has a thickness t 1 = 2 mm and an outer diameter D 2 = 1.
The metal carrier 1 housed in an outer cylinder 12 having a height of 20 mm and a height B 1 = 100 mm is shown. A partially enlarged portion of the honeycomb body 2 is shown in FIG. 7, which is a 20Cr-5Al-based flat foil 3 having a width B 2 = 100 mm and a thickness t 2 = 50 μm, and also a 20Cr-5A-based width B 2 = 100 mm and a thickness. t 2 = 50 μm, wave height h 1
= 1.2 mm and a wave pitch p 1 = 2.4 mm, the corrugated foil 4 is wound and formed, and the inside of the honeycomb body 2 has a diameter D 2
= 110 mm and height B 3 = 80 mm are brazed as shown in FIG. 3, and the bonding rate is 50%. The brazing portion 13 between the outer cylinder 12 and the honeycomb body 2 is formed by the method shown in FIG. 5 (a), but the axial length B 4 is 30 mm.
【００１６】本メタル担体１を、図１のようにエンジン
に取付け、その取付け方向を正逆にしてメタル担体の近
傍に設置したマイクロフォン１４で、その放射音を測定
した。その結果を表１に示すが、接合率を５０％とした
６を上流側にした場合は放射音が小さかった。The metal carrier 1 was attached to an engine as shown in FIG. 1, and its radiated sound was measured by a microphone 14 installed in the vicinity of the metal carrier with the attachment direction reversed. The results are shown in Table 1, and when 6 having the joining rate of 50% was set on the upstream side, the radiated sound was small.
【００１７】[0017]
【表１】 [Table 1]
【００１８】[0018]
【発明の効果】以上説明したように、本発明によれば、
メタル担体の放射音が小さくなり取付け上の制約が少な
く、その効果は極めて大きいものである。As described above, according to the present invention,
The radiated sound of the metal carrier is small, and there are few restrictions on mounting, and the effect is extremely large.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のメタル担体（一部断面図）の取付状況
を示す説明図。FIG. 1 is an explanatory view showing a mounting state of a metal carrier (partial sectional view) of the present invention.
【図２】メタル担体の接合構造断面説明図。FIG. 2 is a cross-sectional explanatory view of a joining structure of a metal carrier.
【図３】ハニカム体接合構造説明図。FIG. 3 is an explanatory view of a honeycomb body joining structure.
【図４】メタル担体接合構造説明図。FIG. 4 is an explanatory view of a metal carrier joining structure.
【図５】（ａ），（ｂ）はハニカム体２と外筒１２の接
合部を示す断面図。5A and 5B are cross-sectional views showing a joint portion between the honeycomb body 2 and the outer cylinder 12.
【図６】放射音の測定に供したメタル担体１の断面図。FIG. 6 is a sectional view of the metal carrier 1 used for measurement of radiated sound.
【図７】図６のハニカム部部分拡大図。FIG. 7 is a partially enlarged view of the honeycomb portion of FIG.
１ メタル担体 ２ ハニカム体 ３ 平箔 ４ 波箔 ５ ロウ付け部 ６ ロウ付けの接合率５０％以下の部分 ７ エンジン １２ 外筒 １３ ハニカム体と外筒間のロウ付け部 １４ マイクロフォン DESCRIPTION OF SYMBOLS 1 Metal carrier 2 Honeycomb body 3 Flat foil 4 Corrugated foil 5 Brazing part 6 Brazing joint ratio of 50% or less 7 Engine 12 Outer cylinder 13 Brazing part between honeycomb body and outer cylinder 14 Microphone
───────────────────────────────────────────────────── フロントページの続き (72)発明者 座間 芳正 千葉県富津市新富20−１ 新日本製鐵株式 会社技術開発本部内 (72)発明者 高田 登志広 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshimasa Zama 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Co., Ltd. Technology Development Division (72) Inventor Toshihiro Takada 1st Toyota-cho, Toyota-shi, Aichi Toyota Auto Car Co., Ltd.
Claims (3)
し、これらを相互に接合して形成したハニカム体とこれ
を収納する外筒よりなるメタル担体において、少なくと
も排ガスの入側端から軸方向に８０％以内の範囲のハニ
カム体の接合部を５０％以下とすることを特徴とする低
騒音型メタル担体。1. A metal carrier comprising a honeycomb body formed by alternately winding or laminating flat foils and corrugated foils, and bonding these to each other, and an outer cylinder accommodating the honeycomb body, at least from an inlet side end of exhaust gas. A low noise type metal carrier characterized in that the bonded portion of the honeycomb body within the range of 80% in the axial direction is 50% or less.
の範囲に、最外層から内側へ５層以内で軸方向に平箔と
波箔が接合された外層強化層を設けたことを特徴とする
請求項１記載の低騒音型メタル担体。2. An outer layer reinforcing layer in which a flat foil and a corrugated foil are joined in the axial direction within 5 layers from the outermost layer to the inside is provided within a range of 80% in the axial direction from the end of the exhaust gas. The low noise type metal carrier according to claim 1.
と接合されていることを特徴とする請求項１あるいは２
記載の低騒音型メタル担体。3. The honeycomb body is joined to the outer cylinder within the range of the outer reinforcing layer.
The low-noise metal carrier described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05575792A JP3315716B2 (en) | 1992-03-13 | 1992-03-13 | Low noise metal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05575792A JP3315716B2 (en) | 1992-03-13 | 1992-03-13 | Low noise metal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05253493A true JPH05253493A (en) | 1993-10-05 |
| JP3315716B2 JP3315716B2 (en) | 2002-08-19 |
Family
ID=13007718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05575792A Expired - Fee Related JP3315716B2 (en) | 1992-03-13 | 1992-03-13 | Low noise metal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3315716B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996016735A1 (en) * | 1994-12-02 | 1996-06-06 | Usui Kokusai Sangyo Kaisha, Ltd. | Metal honeycomb body |
| JP2014147879A (en) * | 2013-01-31 | 2014-08-21 | Honda Motor Co Ltd | Exhaust gas purification catalyst device for miniature internal combustion engine |
| JP2016148743A (en) * | 2015-02-10 | 2016-08-18 | 三恵技研工業株式会社 | Silencer and method for manufacturing the same, and fuel cell system |
| WO2021070691A1 (en) * | 2019-10-08 | 2021-04-15 | 日鉄ケミカル＆マテリアル株式会社 | Honeycomb unit used for purification of exhaust gas, and method for manufacturing honeycomb unit |
-
1992
- 1992-03-13 JP JP05575792A patent/JP3315716B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996016735A1 (en) * | 1994-12-02 | 1996-06-06 | Usui Kokusai Sangyo Kaisha, Ltd. | Metal honeycomb body |
| GB2310385A (en) * | 1994-12-02 | 1997-08-27 | Usui Kokusai Sangyo Kk | Metal honeycomb body |
| GB2310385B (en) * | 1994-12-02 | 1998-12-09 | Usui Kokusai Sangyo Kk | Metal honeycomb core body |
| US5853902A (en) * | 1994-12-02 | 1998-12-29 | Usui Kokusai Sangyo Kaisha, Ltd. | Metal honeycomb core body |
| JP2014147879A (en) * | 2013-01-31 | 2014-08-21 | Honda Motor Co Ltd | Exhaust gas purification catalyst device for miniature internal combustion engine |
| JP2016148743A (en) * | 2015-02-10 | 2016-08-18 | 三恵技研工業株式会社 | Silencer and method for manufacturing the same, and fuel cell system |
| WO2021070691A1 (en) * | 2019-10-08 | 2021-04-15 | 日鉄ケミカル＆マテリアル株式会社 | Honeycomb unit used for purification of exhaust gas, and method for manufacturing honeycomb unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3315716B2 (en) | 2002-08-19 |
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