JPH0647620U - Exhaust gas purification device - Google Patents
Exhaust gas purification deviceInfo
- Publication number
- JPH0647620U JPH0647620U JP073813U JP7381392U JPH0647620U JP H0647620 U JPH0647620 U JP H0647620U JP 073813 U JP073813 U JP 073813U JP 7381392 U JP7381392 U JP 7381392U JP H0647620 U JPH0647620 U JP H0647620U
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- JP
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- Prior art keywords
- filter
- exhaust gas
- seal material
- exhaust
- internal combustion
- Prior art date
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- Exhaust Gas After Treatment (AREA)
Abstract
(57)【要約】 （修正有）
【目的】ディ−ゼルエンジン等の内燃機関から排出され
るガス中に含まれるパティキュレ−トを除去するための
排気ガス浄化装置に関し、特に耐久性を向上させた排気
ガス浄化装置を提供する。
【構成】内燃機関の排気側の連通するケ−シング内に、
貫通孔によってハニカム構造をした多孔質体から成る四
角柱状のフィルタの複数個をシ−ル材９を介して連結し
て形成された四角柱状のフィルタを装着した排気ガス浄
化装置において、シ−ル材として、厚さ１ｍｍ〜５ｍｍ
で嵩密度が０．３ｇｒ／ｃｍ3〜５．０ｇｒ／ｃｍ3を使
用し、また、形成されたフィルタの端面の一辺Ａ、他辺
Ｂ及びフィルタの長さＣの各辺の比が、１．０：０．２
〜０．８：０．３〜５．０となるようにする。
(57) [Summary] (Correction) [Purpose] An exhaust gas purifying device for removing particulates contained in gas discharged from an internal combustion engine such as a diesel engine, particularly with improved durability. An exhaust gas purifying device is provided. [Composition] In a casing that communicates with the exhaust side of an internal combustion engine,
In an exhaust gas purifying apparatus equipped with a quadrangular prism-shaped filter formed by connecting a plurality of quadrangular prism-shaped filters made of a porous body having a honeycomb structure with through holes through a seal material 9, As material, thickness 1mm-5mm
And a bulk density of 0.3 gr / cm 3 to 5.0 gr / cm 3 is used, and the ratio of one side A, the other side B, and each side of the length C of the filter is 1. 0.0: 0.2
~ 0.8: 0.3 to 5.0.
Description
【０００１】[0001]
本考案は、ディ−ゼルエンジン等の内燃機関から排出されるガス中に含まれる パティキュレ−トを除去するための排気ガス浄化装置に関し、特に耐久性を向上 させた排気ガス浄化装置に関する。 The present invention relates to an exhaust gas purifying apparatus for removing particulates contained in gas discharged from an internal combustion engine such as a diesel engine, and more particularly to an exhaust gas purifying apparatus having improved durability.
【０００２】[0002]
従来、この種の排気ガス浄化装置としては、内燃機関の排気側に連通する通路 を備えたケ−シング内に多孔質セラミック焼結体によって一体形成されたハニカ ム状の触媒担体と、その触媒担体に担持された触媒成分とからなるフィルタを配 置し、内燃機関とフィルタとの間にバ−ナ−等の熱源を配設したものが一般に知 られている。そして、フィルタ内に所定量のパティキュレ−トを捕集した後、バ −ナ−等によって加熱して捕集されたパティキュレ−トを燃焼して再生処理を行 い、再びフィルタとして使用している。 Conventionally, this type of exhaust gas purifying apparatus has a honeycomb-shaped catalyst carrier integrally formed of a porous ceramic sintered body in a casing having a passage communicating with the exhaust side of an internal combustion engine, and its catalyst. It is generally known that a filter composed of a catalyst component carried on a carrier is arranged, and a heat source such as a burner is arranged between the internal combustion engine and the filter. Then, after collecting a predetermined amount of particulates in the filter, the particulates are heated by a burner or the like to burn the collected particulates to perform a regeneration process, and the particulates are used again as a filter. .
【０００３】 ところが、上述のようにフィルタを加熱して再生処理を行う場合、バ−ナ−の 位置は内燃機関側の同心円上にあるため、排気ガス流入側端面の中心部の温度が 他の部位に比べて短時間で上昇する傾向にある。特に同一の材料によって一体形 成されている前記触媒担体の場合では、触媒担体の中心部とその外周部との間、 及び、触媒担体の両端面間で温度差を生じ易く、それに伴って触媒担体の周方向 及び半径方向の応力（引っ張り応力又は圧縮応力）の増加によって、触媒担体が 破壊に至る恐れがあった。そのため、フィルタ全体の耐久性が劣り、再生処理を 何回も繰り返して行うことができないという問題があった。However, when the filter is heated to perform the regeneration process as described above, since the burner is located on the concentric circle on the internal combustion engine side, the temperature of the central portion of the exhaust gas inflow side end face is different from that of the other side. It tends to rise in a short time compared to the site. Particularly, in the case of the catalyst carrier integrally formed of the same material, a temperature difference is apt to occur between the center part of the catalyst carrier and the outer peripheral part thereof, and between both end faces of the catalyst carrier. There is a possibility that the catalyst carrier may be destroyed due to an increase in stress (tensile stress or compressive stress) in the circumferential direction and the radial direction of the carrier. Therefore, there is a problem that the durability of the entire filter is poor and the regeneration process cannot be repeated many times.
【０００４】 更に、バ−ナ−又は／およびヒ−タ−によってフィルタをパティキュレ−トの 燃焼温度以上に加熱して、パティキュレ−トを燃焼除去する方法では、パティキ ュレ−トがフィルタに均一に捕集され、且つ、均一に燃焼しない限り、パティキ ュレ−トの燃焼発熱量がフィルタの各部位で異なり、そのためフィルタの各部位 に温度差を生ずることとなる。その結果、フィルタの各部位の熱膨張・収縮量に 差異が生じ、フィルタの各部位の熱膨張・収縮量に差異が生ずるとフィルタの各 部位に圧縮・引張り等の応力が生ずることとなり、これが繰返し行われることに よりフィルタの劣化が進行して破壊に至ることとなる。Further, in the method of burning and removing the particulates by heating the filter to a temperature above the burning temperature of the particulates by a burner and / or a heater, the particulates are evenly distributed on the filter. Unless the particles are collected by and are burned uniformly, the calorific value of combustion of the particulates is different in each part of the filter, which causes a temperature difference in each part of the filter. As a result, there is a difference in the amount of thermal expansion / contraction of each part of the filter, and if there is a difference in the amount of thermal expansion / contraction of each part of the filter, stress such as compression / tensile is generated in each part of the filter. The repeated deterioration leads to deterioration of the filter and destruction.
【０００５】 又、フィルタ各部分のパティキュレ−ト捕集量に差があったり、全体の捕集量 が多過ぎるとパティキュレ−ト燃焼発熱量が大きくなり、フィルタ耐熱温度を超 えて上昇してしまい、フィルタが溶損したり破損したりすることとなる。Further, if there is a difference in the amount of trapped particulates in each part of the filter, or if the amount of trapped particulates is too large, the amount of heat generated by burning particulates becomes large, and the temperature rises above the heat resistant temperature of the filter. The filter may be melted or damaged.
【０００６】 以上のような欠点を解消するために、パティキュレ−ト捕集量が過剰にならな いように、フィルタの再生を頻繁に行うと、再生エネルギ−が著しく増大してし まい実用化できないものとなってしまうという結果になる。In order to solve the above-mentioned drawbacks, if the filter is frequently regenerated so that the amount of trapped particulates does not become excessive, the regenerated energy may remarkably increase, and it is put to practical use. The result is something that cannot be done.
【０００７】 従って、できるだけ再生回数を減少して再生効率を向上させることが必要であ るが、再生回数を減少させるとパティキュレ−トのフィルタに捕集される量が増 え、その結果、フィルタが目詰まりをおこし、排ガスの流れが急激に悪化してし まう。これを回避するために排気ガスを高圧でフィルタに送給すると、システム 全体の効率を悪化させてしまう。Therefore, it is necessary to reduce the number of times of regeneration as much as possible to improve the regeneration efficiency. However, if the number of times of regeneration is reduced, the amount trapped in the filter of the particulate increases, and as a result, the filter is increased. Cause clogging, and the flow of exhaust gas deteriorates sharply. If exhaust gas is sent to the filter at high pressure to avoid this, the efficiency of the entire system will be deteriorated.
【０００８】 更に、フィルタが大型になると、フィルタ各部位のパティキュレ−トが均一で 、その燃焼発熱量が単位容積当たり一定の場合にはフィルタ中心部付近の温度が 最も高くなるという傾向が生じる。このような問題の解決法としては、１）フィ ルタ中心部を空洞にする方法、２）フィルタセル壁厚さを中心部に向かって段階 的に厚くする方法、等が提案されてきたが、１の方法では一体成形されたフィル タ中心部を空洞加工することにより素材ロスを発生させるだけではなく、中心部 のシ−ル構造に特別の配慮が必要になって来る。２）の方法ではダイス製作が難 しいこと及び押出成形時に材料の均一な送給が難しくなり、成形歩留まりが悪く なるだけでなく、乾燥工程から焼成工程に至るまでに不良発生の増大をきたし実 用化が困難という欠点を有する。Further, when the filter becomes large, there is a tendency that the particulates at each part of the filter are uniform, and the temperature near the center of the filter becomes the highest when the calorific value of combustion is constant per unit volume. As a solution to such a problem, 1) a method of making the center of the filter hollow, 2) a method of gradually increasing the filter cell wall thickness toward the center, etc. have been proposed. The first method not only causes material loss by hollowing the center of the integrally molded filter, but requires special consideration for the seal structure in the center. With the method 2), it is difficult to manufacture the die and it is difficult to uniformly feed the material during extrusion molding, which not only deteriorates the molding yield, but also causes an increase in defects from the drying process to the firing process. It has the drawback of being difficult to apply.
【０００９】[0009]
本考案者は、上記のような事情に鑑み、この様な欠点を改良すべく種々検討し た結果、本考案を完成したもので、その目的は、フィルタに捕集されたパティキ ュレ−トを燃焼除去することにより触媒担体の特定の部位に対する応力の集中を 発生させることなく、耐久性の高い排気ガス浄化装置を提供するにある。 The present inventor has completed the present invention as a result of various investigations in order to improve such drawbacks in view of the above-mentioned circumstances, and its purpose is to provide a particulate trapped in a filter. An object of the present invention is to provide an exhaust gas purifying device having high durability without causing concentration of stress on a specific portion of the catalyst carrier by burning and removing the exhaust gas.
【００１０】[0010]
本考案の要旨は、内燃機関の排気側の連通するケ−シング内に、軸線方向に平 行な多数のガス通過孔によってハニカム構造体をした多孔質体から成るフィルタ の分割部分の複数個を、前記ガス通過孔が排気ガスの流れ方向と一致するように 、シ−ル材で隔てて設置し、フィルタの分割部分の間に設置したシ−ル材は厚さ １ｍｍ〜５ｍｍで嵩密度が０．３ｇｒ／ｃｍ3〜５．０ｇｒ／ｃｍ3であることを 特徴とする排気ガス浄化装置であり、また、内燃機関の排気側の連通するケ−シ ング内に、貫通孔によってハニカム構造をした多孔質体から成る四角柱状のフィ ルタの複数個をシ−ル材を介して連結して形成された四角柱状のフィルタを設置 した排気ガス浄化装置において、形成されたフィルタの端面の一辺Ａ、他辺Ｂ及 びフィルタの長さＣの各辺の比が、１．０：０．２〜０．８：０．３〜５．０と なることを特徴とする排気ガス浄化装置である。The gist of the present invention is to provide a plurality of divided parts of a filter made of a porous body having a honeycomb structure with a large number of gas passage holes extending in the axial direction in a casing communicating with the exhaust side of an internal combustion engine. The seal material installed between the divided parts of the filter has a bulk density of 1 mm to 5 mm so that the gas passage holes are aligned with the flow direction of the exhaust gas. The exhaust gas purifying apparatus is characterized in that it is 0.3 gr / cm 3 to 5.0 gr / cm 3 , and a honeycomb structure is formed by a through hole in a communicating casing on the exhaust side of an internal combustion engine. In an exhaust gas purifying apparatus equipped with a rectangular columnar filter formed by connecting a plurality of rectangular columnar filters made of porous material through a seal material, one side A of the end face of the formed filter , Other side B and filter The ratio of the sides of the C is 1.0: 0.2 to 0.8: an exhaust gas purification device characterized by comprising a 0.3 to 5.0.
【００１１】 すなわち、本考案においては、従来のように、単一のフィルタによりなるので はなく、シ−ル材で隔てられた分割部分で構成されているため、フィルタに捕集 されたパティキュレ−トを燃焼除去する際に生じる熱膨張・収縮量にもとずく応 力の影響を極力少なくし、かつ、発熱に伴う温度上昇もシ−ル材の存在により熱 容量が大となり、温度上昇を防止することができ、これによって損傷を未然に防 止し、再生処理回数を増やし、連続使用可能な排気ガス浄化装置とすることがで きる。そして、フィルタの断面形状が四角形の場合には、多孔質体から成る四角 柱状のフィルタの複数個をシ−ル材を介して連結して形成された四角柱状のフィ ルタであって、その各辺の比を上記のように規定することによって、再生時のパ ティキュレ−トの燃焼発熱に伴うハニカムフィルタの局部的な異常温度上昇を防 止してハニカムフィルタの特定の部位に対する応力の集中を発生させることがな い耐久力の高い排気ガス浄化装置とすることができた。That is, according to the present invention, unlike the prior art, the filter is not composed of a single filter but is composed of divided parts separated by a seal material, so that the particulates collected by the filter are separated. The influence of the response due to the amount of thermal expansion and contraction that occurs when burning and removing the heat is minimized, and the temperature rise due to heat generation increases the heat capacity due to the presence of the seal material, increasing the temperature rise. Therefore, the damage can be prevented in advance, the number of regeneration processes can be increased, and the exhaust gas purifying device can be continuously used. When the cross-sectional shape of the filter is quadrangular, it is a quadrangular prism-shaped filter formed by connecting a plurality of quadrangular prism-shaped filters made of a porous body through a seal material, and By defining the side ratio as described above, it is possible to prevent a local abnormal temperature rise of the honeycomb filter due to the combustion heat generation of the particulates during regeneration and prevent the concentration of stress on a specific part of the honeycomb filter. The exhaust gas purifier has high durability and does not generate.
【００１２】 本願考案において、フィルタの分割部分とは、従来、この種のフィルタに使用 されている多孔質炭化珪素焼結体よりなり、ガス通過孔によってハニカム構造を なし、ガス通過孔の一方の端面が市松模様状に封孔され、該封孔された貫通孔の 他方の端面が開口されており、また、一方の端面が開口された貫通孔の他方の端 面が封孔されたフィルタを複数部分に分割したもので、ガスは一方の端面の開口 された貫通孔より導入され、隔壁を通過して浄化され他方の面の開口された貫通 孔より排出されるものを分割したものである。そして、通常、この種のフィルタ の断面の大きさは約４０ｃｍ2〜３００ｃｍ2であり、本考案においては、これを ４等分〜５０等分程度に分割したものであるが、必ずしも等分でなくても良い。 本考案ではこのフィルタの分割部分をシ−リング材で一体としたものである。 そのシ−ル材の厚さが１ｍｍ以下ではシ−ル効果が悪いので好ましくなく、５ ｍｍ以上ではスペ−ス・ロスが大きくなり好ましくない。また、シ−ル材の嵩密 度については、０．３ｇｒ／ｃｍ3以下ではシ−ル効果が悪いことおよび熱容量 が小さくなり過ぎて好ましくなく、５．０ｇｒ／ｃｍ3以上になるとシステム全 体の重量が重くなり過ぎて好ましくない。また、シ−ル材の材質としてはセラミ ック・ファイバ−、耐熱鋼繊維等の繊維状のものと、炭化珪素、窒化タングステ ン等のセラミックス・パウダ−との混合物からなるシ−ル材を使用することがで きる。In the present invention, the divided portion of the filter is made of a porous silicon carbide sintered body that has been conventionally used for this type of filter, and has a honeycomb structure with gas passage holes. A filter in which the end face is sealed in a checkerboard pattern, the other end face of the sealed through hole is opened, and the other end face of the through hole where one end face is opened is sealed. It is divided into multiple parts, and the gas is introduced from the through hole opened on one end face, passes through the partition wall, is purified, and is discharged from the through hole opened on the other face. . Then, usually, the magnitude of the cross-section of this type of filter is about 40cm 2 ~300cm 2, in the present invention, but is obtained by dividing this four equal parts in 50 equal portions about necessarily in equal parts You don't have to. In the present invention, the divided parts of this filter are integrated with a sealing material. If the thickness of the seal material is 1 mm or less, the sealing effect is poor, which is not preferable. Further, sheet - for KasamiHisoka of the sealing material, in 0.3gr / cm 3 or less sheet - not preferable that and heat capacity Le effect is poor is too small, the 5.0gr / cm 3 or more, the entire system Is unfavorably too heavy. As the material of the seal material, a seal material made of a mixture of fibrous material such as ceramic fiber and heat-resistant steel fiber and ceramic powder such as silicon carbide and tungsten nitride is used. Can be used.
【００１３】 フィルタの断面形状としては四角形、円形等がある。断面形状が四角形の場合 、フィルタの分割部分の断面も四角形とし、フィルタの分割部分を組み立てて断 面形状が四角形のフィルタとする。その際、断面の一辺Ａを１．０としたとき、 他辺Ｂが０．２よりも小さいとバ−ナ−等による熱風でハニカムフィルタを均一 に加熱することが難しくなり好ましくなく、辺Ｂが０．８以上にすることは再生 時にフィルタの中心部付近に異常温度上昇がしやすくなり好ましくない。辺Ｂは 、フィルタの容積が６リットル以上の場合には辺Ａが１に対して０．３前後とす ることが好ましい。また、辺Ａが１に対して長さ方向の辺Ｃが０．３よりも小さ くなると、両端面の封孔効率が悪くなってしまうのみならず、端面積が大きくな って均一加熱が難しく、５．０以上では軸方向の温度差が大きくなってしまい好 ましくない。辺Ｃは、フィルタ容積が６リットル以上の場合には１．０前後とす ることが望ましい。The cross-sectional shape of the filter includes a quadrangle and a circle. When the cross-sectional shape is quadrangular, the cross section of the divided part of the filter is also quadrangular, and the divided parts of the filter are assembled to form a filter with a quadrangular cross-sectional shape. At that time, when one side A of the cross section is 1.0 and the other side B is smaller than 0.2, it is difficult to uniformly heat the honeycomb filter with hot air from a burner or the like, which is not preferable. When it is 0.8 or more, an abnormal temperature rise tends to occur near the center of the filter during regeneration, which is not preferable. It is preferable that the side B is about 0.3 with respect to the side A when the volume of the filter is 6 liters or more. Further, if the side A in the lengthwise direction is smaller than 0.3 with respect to the side A, not only the sealing efficiency of both end faces becomes worse, but also the end area becomes large and uniform heating is not possible. It is difficult, and if it is 5.0 or more, the temperature difference in the axial direction becomes large, which is not preferable. Side C is preferably around 1.0 when the filter volume is 6 liters or more.
【００１４】 本考案において、フィルタを形成する個々の分割部分とは、多孔質炭化珪素焼 結体よりなり、また、シ−ル材の材質としてはセラミック・ファイバ−、耐熱鋼 繊維等の繊維状のものと、炭化珪素、窒化タングステン等のセラミックス・パウ ダ−との混合物からなるシ−ル材を使用することができる。そして、個々の分割 部分のガス通過孔の一方の端面は封孔された孔と開口のままの孔とが互いに隣接 して市松模様状をなし、封孔された孔の他の端面は開口し、開口している孔の他 の面は封口してある。したがって、排気ガスは一方の端面の開口されたガス通過 孔より導入され、隔壁を通過して浄化され他方の面の開口された貫通孔より排出 されるもので、フィルタの分割部分の端面の大きさは約４０ｃｍ2〜３００ｃｍ2 であり、これをシ−ル材を介して連結して先に規定した範囲内の大きさのフィル タになるように組立て、内燃機関の排気側に連通するケ−シング内に装着する。In the present invention, each of the divided parts forming the filter is made of a porous silicon carbide sintered body, and the material of the seal material is a ceramic fiber, a heat-resistant steel fiber, or the like. It is possible to use a seal material made of a mixture of the above and a ceramic powder such as silicon carbide or tungsten nitride. Then, one end face of the gas passage hole of each divided portion has a checkered pattern in which the sealed hole and the unopened hole are adjacent to each other, and the other end surface of the sealed hole is opened. The other surface of the open hole is sealed. Therefore, the exhaust gas is introduced through the gas passage hole opened on one end face, passes through the partition wall, is purified, and is discharged from the through hole opened on the other face. is is about 40cm 2 ~300cm 2, which was - assembled so that the size of the filter in the range specified above linked via a sealing material, communicates with the exhaust side of the internal combustion engine Ke -Install in the sing.
【００１５】 本願考案を図面をもって具体的に説明する。 図１は本考案にかかる排気ガス浄化装置の説明図、図２は本考案のフィルタの 正面図、図３はフィルタの分割部分で組み立てたフィルタの斜視図である。 図１において、排気ガス浄化装置１は金属性のケ−シング２を備え、そのケ− シング２の通路２ａが内燃機関Ｅの排気管Ｅａに接続されている。このケ−シン グ２内には排出ガスを浄化するためのハニカム・フィルタ３が配設され、そのハ ニカム・フィルタ３とケ−シング２の通路２ａの内壁との間にはセラミックファ イバ−またはセラミックファイバ−複合体からなる断熱支持体が充填されている 。また、排気ガス浄化装置１の内燃機関側に排気管の同心円上に熱風を供給する バ−ナ−７が設置されている。The present invention will be specifically described with reference to the drawings. FIG. 1 is an explanatory view of an exhaust gas purifying apparatus according to the present invention, FIG. 2 is a front view of a filter of the present invention, and FIG. 3 is a perspective view of a filter assembled by a divided portion of the filter. In FIG. 1, an exhaust gas purifying apparatus 1 includes a metallic casing 2, and a passage 2a of the casing 2 is connected to an exhaust pipe Ea of an internal combustion engine E. A honeycomb filter 3 for purifying exhaust gas is disposed in the casing 2, and a ceramic fiber is provided between the honeycomb filter 3 and the inner wall of the passage 2a of the casing 2. Alternatively, it is filled with an insulating support made of ceramic fiber-composite. In addition, a burner 7 is installed on the internal combustion engine side of the exhaust gas purification device 1 so as to supply hot air concentrically to the exhaust pipe.
【００１６】 図２は本考案において使用するハニカム・フィルタ−３の正面図であり、図３ は分割部分で組み立てたフィルタの斜視図でフィルタ断面の一方の辺をＡ、他方 の辺をＢ、フィルタの長さ、すなわち、ガス通過孔の長さをＣとする。 ハニカム・フィルタ−３は多孔質炭化珪素焼結体よりなる複数個の四角柱状の 分割部分８をシ−ル材９によって互いに連結して四角柱状に形成されている。そ れぞれの分割部分８は、軸線方向に平行に延びる多数のガス通過孔によってハニ カム構造を呈し、各ガス通過孔の供給側及び排出側の何れか一端が市松模様状に 封口されている。そして、ハニカム・フィルタ−３の各ガス通過孔の内面には白 金族元素やその他の金属元素及びその酸化物等からなる酸化触媒が担持されてい る。したがって、内燃機関Ｅの排気ガスがケ−シング２の供給側からハニカム・ フルタ−３に導入されると、ガス通過孔の壁部によって排気ガス中のパティキュ レ−トが濾過されると共に酸化触媒により酸化される。そして浄化された排気ガ スがハニカム・フルタ−３から排出される。FIG. 2 is a front view of the honeycomb filter 3 used in the present invention. FIG. 3 is a perspective view of the filter assembled in the divided parts, in which one side of the filter cross section is A, the other side is B, Let C be the length of the filter, that is, the length of the gas passage hole. The honeycomb filter 3 is formed in a quadrangular prism shape by connecting a plurality of quadrangular prismatic divided portions 8 made of a porous silicon carbide sintered body to each other by a seal material 9. Each of the divided portions 8 has a honeycomb structure with a large number of gas passage holes extending in parallel to the axial direction, and one end of each gas passage hole on the supply side or the discharge side is sealed in a checkered pattern. There is. An oxidation catalyst composed of a white metal group element, another metal element, and an oxide thereof is supported on the inner surface of each gas passage hole of the honeycomb filter-3. Therefore, when the exhaust gas of the internal combustion engine E is introduced into the honeycomb filter 3 from the supply side of the casing 2, the particulate matter in the exhaust gas is filtered by the wall portion of the gas passage hole and the oxidation catalyst is also present. Is oxidized by. Then, the purified exhaust gas is discharged from the honeycomb filter-3.
【００１７】[0017]
次に実施例をもって具体的に本発明を説明する。 実施例１ 内燃機関の排気側のケ−シング内に装着するハニカム・フルタ−として、セル 壁厚が０．３ｍ／ｍ、セル数２００ケ／ｉｎ2で９個の等分割でそれぞれが四角 の分割部分を厚さ５ｍｍで嵩密度３ｇ／ｃｍ3のシ−ル材を用いて長さ１５０ｍ ｍ、断面積１０，０００ｍｍ2のハニカムフルタ−を造り、これをエンジンの排 気ガス管中に取付けたところ、排気ガス中のパティキュレ−トはハニカムフィル タ−の単位体積（リットル）当たり２０ｇ捕集され、前記のような再生処理を繰 返し２０回行ったところハニカムフイルタ−には全く以上は発生しなかった。Next, the present invention will be specifically described with reference to examples. Example 1 A honeycomb filter to be installed in a casing on the exhaust side of an internal combustion engine has a cell wall thickness of 0.3 m / m, a cell number of 200 cells / in 2 , and nine equal divisions, each of which has a square shape. A honeycomb filter with a length of 150 mm and a cross-sectional area of 10,000 mm 2 was made using a seal material with a thickness of 5 mm and a bulk density of 3 g / cm 3 , and this was installed in the exhaust gas pipe of the engine. As a result, 20 g of the particulates in the exhaust gas were collected per unit volume (liter) of the honeycomb filter, and when the above-mentioned regeneration treatment was repeated 20 times, the honeycomb filter generated no more than that. I didn't.
【００１８】 実施例２ 内燃機関の排気側のケ−シング内に装着するハニカムフルタ−として、端面の 大きさが３ｃｍ×３ｃｍで長さが２０ｃｍのフィルタの分割部分４０本を一辺に ４個、他の辺に１０個をシ−リング材を介して連結して構成した。各辺の比Ａ： Ｂ：Ｃは１：０．４：０．５となる。 このようにして構成したフィルタを使用し、再生時パティキュレ−トを燃焼さ せても、特にフィルタ中心部等の局部的な以上温度上昇がなく、その結果、耐久 性の高い排気ガス浄化装置が得られた。Example 2 As a honeycomb filter to be installed in the casing on the exhaust side of an internal combustion engine, 40 divided portions of a filter having an end face of 3 cm × 3 cm and a length of 20 cm are provided on each side, four pieces. Ten pieces were connected to the other side via a sealing material. The ratio A: B: C of each side is 1: 0.4: 0.5. Even if the particulates are burned during regeneration using the filter constructed in this way, there is no local temperature rise, especially in the center of the filter, etc., and as a result, a highly durable exhaust gas purification device is provided. Was obtained.
【００１９】[0019]
以上述べたように、本考案は、貫通孔によってハニカム構造をした多孔質体か ら成る四角柱状のフィルタの複数個をシ−ル材を介して連結して端面の大きさ、 及び、長さを特定の範囲になるように四角柱状のフィルタを形成することによっ て、再生時、パティキュレ−トを燃焼除去する際局部的な以上温度上昇を防止す ることができ、これによって耐久利ょくの高い排気ガス浄化装置を得ることがで きた。 As described above, according to the present invention, a plurality of quadrangular prism-shaped filters made of a porous body having a honeycomb structure with through holes are connected through a seal material to obtain the end face size and length. By forming the filter in the shape of a quadrangular prism so that it falls within a specific range, it is possible to prevent a temperature rise above the local level when burning and removing the particulates during regeneration. It has become possible to obtain a highly efficient exhaust gas purification device.
【図１】本考案にかかる排気ガス浄化装置の説明図FIG. 1 is an explanatory view of an exhaust gas purifying device according to the present invention.
【図２】本考案で使用するハニカム・フィルタ−の正面
図FIG. 2 is a front view of a honeycomb filter used in the present invention.
【図３】本考案で使用するハニカム・フィルタ−の斜視
図FIG. 3 is a perspective view of a honeycomb filter used in the present invention.
１ 排気ガス浄化装置 ２ ケ−シング ３ ハニカム・フィルタ ４ フィルタのエンジン側端面 ５ フィルタの排気側端面 ６ 排気管 ７ バ−ナ− ８ 分割部分 ９ シ−ル材 1 Exhaust Gas Purification Device 2 Casing 3 Honeycomb Filter 4 Engine End Face of Filter 5 Exhaust End Face of Filter 6 Exhaust Pipe 7 Burner 8 Divided Part 9 Seal Material
Claims (2)
内に、軸線方向に平行な多数のガス通過孔によってハニ
カム構造体をした多孔質体から成るフィルタの分割部分
の複数個を、前記ガス通過孔が排気ガスの流れ方向と一
致するように、シ−ル材で隔てて設置し、フィルタの分
割部分の間に設置したシ−ル材は厚さ１ｍｍ〜５ｍｍで
嵩密度が０．３ｇｒ／ｃｍ3〜５．０ｇｒ／ｃｍ3である
ことを特徴とする排気ガス浄化装置。1. A plurality of divided parts of a filter made of a porous body having a honeycomb structure with a large number of gas passage holes parallel to an axial direction are provided in a casing communicating with an exhaust side of an internal combustion engine. The seal material is installed with a seal material so that the gas passage holes are aligned with the flow direction of the exhaust gas, and the seal material installed between the divided parts of the filter has a thickness of 1 mm to 5 mm and a bulk density of 0. An exhaust gas purifying device, characterized in that it is 3 gr / cm 3 to 5.0 gr / cm 3 .
内に、軸線方向に平行な多数のガス通過孔によってハニ
カム構造体をした多孔質体から成る断面形状が四角柱状
のフィルタの分割部分の複数個をシ−ル材を介して連結
して形成された四角柱状のフィルタを装着した排気ガス
浄化装置において、形成されたフィルタの端面の一辺
Ａ、他辺Ｂ及びフィルタの長さＣの各辺の比が、１．
０：０．２〜０．８：０．３〜５．０となることを特徴
とする排気ガス浄化装置。2. A divided portion of a filter having a quadrangular prism-shaped cross section formed of a porous body having a honeycomb structure with a large number of gas passage holes parallel to the axial direction in a casing communicating with the exhaust side of an internal combustion engine. In an exhaust gas purifying apparatus equipped with a quadrangular prism-shaped filter formed by connecting a plurality of these through a seal material, one side A, the other side B, and the length C of the filter are different from each other. The ratio of each side is 1.
The exhaust gas purifying device is characterized in that the ratio is 0: 0.2 to 0.8: 0.3 to 5.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992073813U JP2590943Y2 (en) | 1992-10-22 | 1992-10-22 | Exhaust gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992073813U JP2590943Y2 (en) | 1992-10-22 | 1992-10-22 | Exhaust gas purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0647620U true JPH0647620U (en) | 1994-06-28 |
| JP2590943Y2 JP2590943Y2 (en) | 1999-02-24 |
Family
ID=13528978
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992073813U Expired - Lifetime JP2590943Y2 (en) | 1992-10-22 | 1992-10-22 | Exhaust gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2590943Y2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816065A1 (en) | 1996-01-12 | 1998-01-07 | Ibiden Co, Ltd. | Ceramic structure |
| WO2002070106A1 (en) * | 2001-03-01 | 2002-09-12 | Ngk Insulators,Ltd. | Honeycomb filter and method for manufacturing the same |
| JP2002282634A (en) * | 2001-03-29 | 2002-10-02 | Ngk Insulators Ltd | Honeycomb structure body and its assembly |
| JP2002282705A (en) * | 2001-03-29 | 2002-10-02 | Ngk Insulators Ltd | Honeycomb structure and its assembly |
| WO2003033104A1 (en) * | 2001-10-15 | 2003-04-24 | Ngk Insulators,Ltd. | Honeycomb filter |
| WO2003067043A1 (en) * | 2002-02-05 | 2003-08-14 | Ngk Insulators, Ltd. | Honeycomb structure |
| WO2004111398A1 (en) * | 2003-06-05 | 2004-12-23 | Ibiden Co., Ltd. | Honeycomb structure body |
| JPWO2004024293A1 (en) * | 2002-09-13 | 2006-01-05 | イビデン株式会社 | Honeycomb structure |
| JP2006035224A (en) * | 1998-07-28 | 2006-02-09 | Ibiden Co Ltd | Ceramic structure |
| JP2014500924A (en) * | 2010-10-29 | 2014-01-16 | テンネコ・オートモティブ・オペレーティング・カンパニー・インコーポレイテッド | Large volume exhaust gas treatment system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101439510B1 (en) * | 2006-11-20 | 2014-09-17 | 주식회사 칸세라 | Multilayer Binding Structure of Honeycomb Ceramic Filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03121213A (en) * | 1989-09-30 | 1991-05-23 | Ibiden Co Ltd | Honeycomb filter for exhaust gas purifying device |
-
1992
- 1992-10-22 JP JP1992073813U patent/JP2590943Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03121213A (en) * | 1989-09-30 | 1991-05-23 | Ibiden Co Ltd | Honeycomb filter for exhaust gas purifying device |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0816065A1 (en) | 1996-01-12 | 1998-01-07 | Ibiden Co, Ltd. | Ceramic structure |
| JP2006035224A (en) * | 1998-07-28 | 2006-02-09 | Ibiden Co Ltd | Ceramic structure |
| US6797666B2 (en) | 2001-03-01 | 2004-09-28 | Ngk Insulators, Ltd. | Honeycomb filter and process for production thereof |
| WO2002070106A1 (en) * | 2001-03-01 | 2002-09-12 | Ngk Insulators,Ltd. | Honeycomb filter and method for manufacturing the same |
| US7087286B2 (en) | 2001-03-29 | 2006-08-08 | Ngk Insulators, Ltd. | Honeycomb structure and assembly thereof |
| JP4511070B2 (en) * | 2001-03-29 | 2010-07-28 | 日本碍子株式会社 | Honeycomb structure and assembly thereof |
| JP4511071B2 (en) * | 2001-03-29 | 2010-07-28 | 日本碍子株式会社 | Honeycomb structure and assembly thereof |
| WO2002079618A1 (en) * | 2001-03-29 | 2002-10-10 | Ngk Insulators, Ltd. | Honeycomb structure and assembly thereof |
| WO2002079617A1 (en) * | 2001-03-29 | 2002-10-10 | Ngk Insulators, Ltd. | Honeycomb structure and assembly thereof |
| JP2002282634A (en) * | 2001-03-29 | 2002-10-02 | Ngk Insulators Ltd | Honeycomb structure body and its assembly |
| US7078086B2 (en) | 2001-03-29 | 2006-07-18 | Ngk Insulators, Ltd. | Honeycomb structure and assembly thereof |
| JP2002282705A (en) * | 2001-03-29 | 2002-10-02 | Ngk Insulators Ltd | Honeycomb structure and its assembly |
| US6984253B2 (en) | 2001-10-15 | 2006-01-10 | Ngk Insulators, Ltd. | Honeycomb filter |
| WO2003033104A1 (en) * | 2001-10-15 | 2003-04-24 | Ngk Insulators,Ltd. | Honeycomb filter |
| WO2003067043A1 (en) * | 2002-02-05 | 2003-08-14 | Ngk Insulators, Ltd. | Honeycomb structure |
| JPWO2004024293A1 (en) * | 2002-09-13 | 2006-01-05 | イビデン株式会社 | Honeycomb structure |
| JP4553737B2 (en) * | 2002-09-13 | 2010-09-29 | イビデン株式会社 | Honeycomb structure |
| JPWO2004111398A1 (en) * | 2003-06-05 | 2006-07-20 | イビデン株式会社 | Honeycomb structure |
| WO2004111398A1 (en) * | 2003-06-05 | 2004-12-23 | Ibiden Co., Ltd. | Honeycomb structure body |
| CN100360768C (en) * | 2003-06-05 | 2008-01-09 | 揖斐电株式会社 | Honeycomb structural body |
| JP2014500924A (en) * | 2010-10-29 | 2014-01-16 | テンネコ・オートモティブ・オペレーティング・カンパニー・インコーポレイテッド | Large volume exhaust gas treatment system |
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