JPH0583284B2 - - Google Patents

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Publication number
JPH0583284B2
JPH0583284B2 JP61212792A JP21279286A JPH0583284B2 JP H0583284 B2 JPH0583284 B2 JP H0583284B2 JP 61212792 A JP61212792 A JP 61212792A JP 21279286 A JP21279286 A JP 21279286A JP H0583284 B2 JPH0583284 B2 JP H0583284B2
Authority
JP
Japan
Prior art keywords
exhaust
exhaust gas
collection
exhaust particulate
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP61212792A
Other languages
Japanese (ja)
Other versions
JPS6369519A (en
Inventor
Masayoshi Usui
Yasuaki Hashimoto
Kazuyoshi Takigawa
Juzo Tsukiide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Usui Kokusai Sangyo Kaisha Ltd
Original Assignee
Usui Kokusai Sangyo Kaisha Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Usui Kokusai Sangyo Kaisha Ltd filed Critical Usui Kokusai Sangyo Kaisha Ltd
Priority to JP61212792A priority Critical patent/JPS6369519A/en
Publication of JPS6369519A publication Critical patent/JPS6369519A/en
Publication of JPH0583284B2 publication Critical patent/JPH0583284B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、デイーゼルエンジンの排気ガスに含
まれるカーボンなどの排気微粒子を捕集・処理し
て浄化する装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a device that collects, processes, and purifies exhaust particulates such as carbon contained in the exhaust gas of a diesel engine.

(従来の技術) 従来、この種の排気ガス中に含まれる排気微粒
子を捕集する装置としては、例えば発泡セラミツ
クやセラミツクモノリスを利用した捕集装置があ
る。これらの捕集装置は、排気ガス中の排気微粒
子を物理的に一旦捕集し、これを電気ヒータやバ
ーナ等の熱源により加熱燃焼することによつて捕
集機能を再生し、排気ガスを浄化するものであ
る。
(Prior Art) Conventionally, as a device for collecting exhaust particulates contained in this type of exhaust gas, there is a collecting device using, for example, foamed ceramic or ceramic monolith. These collection devices physically collect exhaust particulates in the exhaust gas, then heat and burn them using a heat source such as an electric heater or burner to restore the collection function and purify the exhaust gas. It is something to do.

前記した従来技術による捕集装置においては、
物理的捕集材としての発泡セラミツクやこれに類
似したセライツクモノリスが三次元の網目状構造
をなしており、その内部を通過する排気ガス中に
含まれる微粒子を網目状通路の壁面に付着堆積さ
せて物理的に捕集しようとするものである。
In the collection device according to the prior art described above,
Foamed ceramic or similar ceramic monolith as a physical collection material forms a three-dimensional network structure, and the fine particles contained in the exhaust gas passing through it are deposited on the walls of the network passages. This is an attempt to physically collect it.

しかしながら、従来の捕集装置においては、排
気ガス中の微粒子の堆積量はしだいに増加してい
くが、堆積量の増加に伴い排気ガス通過断面積が
減少し、その結果背圧(圧力損失)が上昇、排気
抵抗が高くなつてエンジン性能の低下を来した
り、排気ガスの壁面との接触面積が減少するため
排気微粒子の捕集率を低下させるなどの問題を有
している。
However, in conventional collection devices, the amount of particulates deposited in the exhaust gas gradually increases, but as the amount of deposits increases, the exhaust gas passage cross-sectional area decreases, resulting in back pressure (pressure loss). This causes problems such as an increase in exhaust resistance and a decrease in engine performance, and a decrease in the collection rate of exhaust particulates due to a decrease in the contact area of exhaust gas with the wall surface.

この為、背圧上昇防止と捕集率を向上するため
にセラミツクモノリスの口径、長さを共に大きく
しておく必要があると共に、堆積した微粒子を頻
繁に着火燃焼等により再生処理する必要がある。
For this reason, it is necessary to increase both the diameter and length of the ceramic monolith in order to prevent back pressure from increasing and improve the collection rate, and it is also necessary to frequently regenerate accumulated particles by ignition combustion, etc. .

また、前記したように従来の捕集装置は、捕集
装置であると同時に極めて高温にさらされる燃焼
反応装置でもあるため、装置全体を耐熱性のもの
にするとともに加熱燃焼が出来る構造とするため
に非常に高価なものである。
In addition, as mentioned above, conventional collection devices are not only collection devices but also combustion reaction devices that are exposed to extremely high temperatures. It is very expensive.

例えば、捕集装置の耐衝撃性を補うために、及
び金属部位との熱膨張係数の大きな差から生じる
各部材への熱応力を緩和するために、ステンレス
鋼線からなる耐熱、耐食性を持つた高価なクツシ
ヨン材を必要とするなど、従来の捕集装置は非常
に高価なものである。
For example, in order to supplement the impact resistance of the collection device and to alleviate the thermal stress on each member caused by the large difference in thermal expansion coefficient with the metal part, we used a stainless steel wire with heat and corrosion resistance. Conventional collection devices are very expensive, requiring expensive cushioning materials.

最近、デイーゼルエンジンの排気ガス問題とし
て、NOx,SOxの低減化はもとより、排気ガス中
の微粒子(パーテイキユレート)の捕集の問題が
クローズアルプされて来ている。
Recently, as exhaust gas problems for diesel engines, not only the reduction of NO x and SO x but also the collection of particulates (particulates) in the exhaust gas have been brought into closer focus.

いうまでもなく、この問題の解決にあたつて
は、デイーゼルエンジンの効率を極力、低下させ
ないことが要求されるとともに、排気微粒子の高
いないしは完全な除去(捕集)が要求されてい
る。しかしながら、デイーゼルエンジンの排気ガ
ス中の微粒子を捕集する装置として、前記した要
求をを満足するとともに経済的な装置が開発され
ていないのが現状である。
Needless to say, in order to solve this problem, it is required not only to reduce the efficiency of the diesel engine as much as possible, but also to remove (collect) exhaust particulates at a high level or completely. However, at present, no economical device has been developed that satisfies the above-mentioned requirements as a device for collecting particulates in the exhaust gas of a diesel engine.

(発明が解決しようとする問題点) 本発明者らは前記した従来技術の問題点を解決
すべく鋭意検討した結果、デイーゼルエンジンの
排気ガス中に含まれる排気微粒子の捕集手段とし
て、密集させた耐熱性金属材の線材からなる二以
上の捕集素子を、各捕集素子の構造(線材の径、
密集密度)、及び各捕集素子の配設方式を工夫す
ることにより、効果的に排気微粒子を捕集するこ
とができ、かつ捕集された排気微粒子は僅かな振
動により落下するため捕集機能を長時間にわたり
十全に発揮させることができるということを見い
出し、本発明を完成するに至つた。
(Problems to be Solved by the Invention) As a result of intensive studies to solve the above-mentioned problems of the prior art, the present inventors have found that a method for collecting exhaust particulates contained in the exhaust gas of diesel engines has been developed. Two or more collection elements made of wire rods made of heat-resistant metal material are
By devising the high density (dense density) and arrangement method of each collection element, exhaust particulates can be effectively collected, and the collected exhaust particulates fall due to slight vibrations, which improves the collection function. The inventors have discovered that this can be fully demonstrated over a long period of time, and have completed the present invention.

〔発明の構成〕[Structure of the invention]

(問題点を解決するための手段) 本発明を概説すれば、本発明は、デイーゼルエ
ンジンの排気ガス通路に介装した排気微粒子の捕
集装置において、前記捕集装置が、 (i) 多数の耐熱性金属材料からなる線材を密集さ
せ、上端を束ねて束縛端とするとともに下端を
自由端とした二以上の排気微粒子捕集素子であ
つて、 (ii) 前記二以上の排気微粒子捕集素子が、排気ガ
ス流通方向にみて、各素子を構成する線材の密
集密度が高くなるものであり、更に、 (iii) 前記二以上の排気微粒子捕集素子が、排気ガ
ス流通方向にみて、所望の間隔をもつて排気ガ
ス流通路内に束縛端を固定して配設されるもの
である、 ことを特徴とするデイーゼルエンジン用排気微粒
子捕集装置に関するものである。
(Means for Solving the Problems) To summarize the present invention, the present invention provides an exhaust particulate collection device installed in an exhaust gas passage of a diesel engine, in which the collection device includes (i) a large number of Two or more exhaust particulate collection elements made of wires made of a heat-resistant metal material packed tightly together, the upper ends of which are bundled to form a bound end, and the lower ends of which are free ends, (ii) the two or more exhaust particulate collection elements; However, when viewed in the direction of exhaust gas flow, the density of the wires constituting each element becomes high; The present invention relates to an exhaust particulate collection device for a diesel engine, characterized in that the binding end is fixedly disposed in an exhaust gas flow passage at intervals.

本発明のデイーゼルエンジン用排気微粒子捕集
装置において、第一の大きな特徴点は、捕集要素
(エレメント)を、耐熱性の金属材料からなる多
数の線材を密集させ、その片端を束ねて束縛端と
するとともに他端を自由端とした二以上の排気微
粒子捕集素子(サブエレメント)で構成した点で
ある。
The first major feature of the diesel engine exhaust particulate collection device of the present invention is that the collection element is made of a large number of wire rods made of heat-resistant metal material, which are closely packed together, and one end of which is tied together. It is constructed of two or more exhaust particulate collecting elements (sub-elements) with the other end being a free end.

前記した第一の特徴点により、本発明のデイー
ゼルエンジン用の排気微粒子捕集装置において、
捕集要素(エレメント)が二以上の排気微粒子捕
集素子(サブエレメント)で構成されること、即
ちユニツト化しているため、装置の捕集能の低
下、各素子の目づまりや破損などを考慮して、そ
の交換が極めてスムーズに行なうことが出来ると
いう利点を得ることが出来る。また、排気系の容
量に対し、前記捕集素子(サブエレメント)の最
適数を配設することにより、排気微粒子の捕集を
完全なものにすることができる。
According to the first characteristic point described above, in the exhaust particulate collection device for a diesel engine of the present invention,
Since the collection element is composed of two or more exhaust particulate collection elements (sub-elements), in other words, it is integrated into a unit, consideration should be given to reducing the collection ability of the device and clogging or damage to each element. This provides the advantage that the exchange can be carried out extremely smoothly. Further, by arranging the optimal number of the collection elements (sub-elements) with respect to the capacity of the exhaust system, exhaust particulates can be completely collected.

本発明のデイーゼルエンジンの排気微粒子にお
いて、第二の大きな特徴点は、前記二以上の排気
微粒子捕集素子(サブエレメント)の構成を、排
気ガス流通方向からみて、各素子を構成する線材
の密集密度が高くなるように構成した点である。
The second major feature of the diesel engine exhaust particulates of the present invention is that the configuration of the two or more exhaust particulate collection elements (sub-elements) is such that, when viewed from the exhaust gas flow direction, the wires constituting each element are densely packed. This is because the structure is designed to increase the density.

前記した第二の特徴点は、背圧(圧力損失)を
大きくさせずに、かつ効率的に排気ガス中の排気
微粒子を捕集するという観点から規定されたもの
である。即ち、捕集要素(エレメント)を単一体
としたときは、エンジン効率と密接に関係する背
圧の問題と高い排気微粒子の捕集率の達成という
二律背反した問題点を解決しにくいため、本発明
は前記した構成を採用する。
The second characteristic point described above was defined from the viewpoint of efficiently collecting exhaust particulates in exhaust gas without increasing back pressure (pressure loss). That is, when the collection element is made into a single unit, it is difficult to solve the contradictory problems of back pressure, which is closely related to engine efficiency, and achievement of a high exhaust particulate collection rate. adopts the configuration described above.

なお、本発明において、各捕集要素(サブエレ
メント)を構成する線材として、波付加工された
ものを使用しても、あるいは線径のことなるもの
を使用してもよいことはいうまでもないことであ
る。
In addition, in the present invention, it goes without saying that wire rods constituting each collection element (sub-element) may be corrugated or may have different diameters. There is no such thing.

また、波付加工した線材を使用する場合、前記
第二の特徴点の関係で、線材の波形、二以上の各
排気微粒子捕集素子間において、排気ガス流方向
にみて、順次大ピツチの波形から小ピツチの波形
に変化したものであつてもよい。
In addition, when using a corrugated wire rod, due to the second characteristic point, the waveform of the wire rod, the waveform of the wire rod, the waveform of the wire rod, the waveform of the wire rod, the waveform of successively larger pitches between two or more exhaust particulate collection elements when viewed in the exhaust gas flow direction. The waveform may be changed from a waveform of a small pitch to a waveform of a small pitch.

同様に、線径の異なる線材を使用する場合、線
材の線径が、二以上の各排気微粒子捕集素子間に
おいて、順次大径から小径に変化したものであつ
てもよい。
Similarly, when using wire rods having different wire diameters, the wire diameters of the wire rods may be sequentially changed from a large diameter to a small diameter between two or more exhaust particulate collection elements.

本発明のデイーゼルエンジン用の排気微粒子捕
集装置において、第三の大きな特徴点は、前記二
以上の排気微粒子捕集素子(サブエレメント)
が、排気ガス流通方向にみて、所望の間隔をもつ
て排気ガス流通路内に配設されるという点であ
る。
The third major feature of the exhaust particulate collection device for diesel engines of the present invention is that the two or more exhaust particulate collection elements (sub-elements)
are disposed within the exhaust gas flow path at desired intervals when viewed in the exhaust gas flow direction.

前記した第三の特徴点により、各捕集素子(サ
ブエレメント)間に形成される空間スペース内で
排気ガスが乱流化、攪拌混合し、排気微粒子同志
の衝突による粒子の肥大化が起こるため、該スペ
ース内での微粒子の沈降分離により、あるいは次
段の捕集素子中での容易な捕集により、全体とし
て排気微粒子の捕集率が改善される。
Due to the third characteristic point mentioned above, the exhaust gas becomes turbulent and stirred and mixed within the space formed between each collection element (sub-element), and the exhaust particles collide with each other, causing the particles to become enlarged. The overall collection efficiency of exhaust particulates is improved by sedimentation and separation of the particulates within the space, or by easy collection in the next-stage collection element.

本発明のデイーゼルエンジン用の排気微粒子捕
集装置において、前記した本発明の特徴点との関
連における作用効果のほかに、長期にわたり捕集
能を発揮させることが出来る。
In the exhaust particulate collection device for a diesel engine according to the present invention, in addition to the effects related to the features of the present invention described above, the collection ability can be exhibited for a long period of time.

即ち、排気ガス中の微粒子(主にカーボン粒
子)は、各捕集素子を構成する耐熱金属材料から
なる線材相互間の隙間を迂回しながら通過する間
に、互いに接触、凝集して大きな粒子となり線材
表面に付着するが、前記線材の配設方向が上下方
向であることにより、エンジンや路面からの僅か
な振動により、更には密集線材相互の接触などに
より容易に落下し、捕集能を再生することが出来
るためである。
In other words, fine particles (mainly carbon particles) in the exhaust gas come into contact with each other and aggregate into large particles while passing through the gaps between the wire rods made of heat-resistant metal materials that make up each collection element. It adheres to the surface of the wire, but because the wire is arranged in the vertical direction, it easily falls off due to slight vibrations from the engine or road surface, or even when closely packed wires come into contact with each other, regenerating the collection ability. This is because it can be done.

(実施例) 以下、本発明の一実施例を図面に基づいて説明
する。
(Example) Hereinafter, an example of the present invention will be described based on the drawings.

第1図は、本発明のデイーゼルエンジン用の排
気粒子捕集装置の断面図である。1は排気通路2
に介装された排気微粒子捕集装置、4は排気微粒
子捕集要素(エレメント)を示す。
FIG. 1 is a sectional view of an exhaust particle collection device for a diesel engine according to the present invention. 1 is exhaust passage 2
4 is an exhaust particulate collection element installed in the exhaust particulate collection device.

第1図において、前記排気微粒子捕集要素4
は、5箇の排気微粒子捕集素子(サブエレメン
ト)41,42,43,44,45から成るもの
である。
In FIG. 1, the exhaust particulate collection element 4
consists of five exhaust particulate collection elements (sub-elements) 41, 42, 43, 44, and 45.

前記排気微粒子捕集素子41〜45は、
SUS304製の毛足長さ80mmのワイヤー線材3を厚
さ約13mmに密集させて一端を束縛し、その束縛端
5を上方に、自由端6を下方となる姿勢に、相互
に10mmの間隔をもつて配設されたものである。
The exhaust particulate collection elements 41 to 45 are
Wire rods 3 made of SUS304 with a pile length of 80 mm are packed together to a thickness of about 13 mm and bound at one end, with the bound end 5 facing upward and the free end 6 facing downward, with a distance of 10 mm between them. It was arranged in such a way.

排気微粒子捕集素子41は、線径φ0.7mmの
SUS304製ワイヤー線材3を密度約4.1Kg/cm3に密
集させて構成した。
The exhaust particulate collection element 41 has a wire diameter of φ0.7 mm.
The wire material 3 made of SUS304 was densely packed to a density of about 4.1 Kg/cm 3 .

排気微粒子捕集素子42,43は、線径φ0.5mm
の線材3をピツチ6mm、高さ2mmに波打加工を施
し、密度約4.5Kg/m3に密集させて構成した。
The exhaust particulate collection elements 42 and 43 have a wire diameter of φ0.5 mm.
The wire material 3 was corrugated to a pitch of 6 mm and a height of 2 mm, and packed together to a density of approximately 4.5 kg/m 3 .

排気微粒子捕集素子44,45は線径φ0.3mmの
線材3をピツチ5mm、高さ2mmに波打加工を施
し、密度約4.7Kg/m3に密集させて構成した。
The exhaust particulate collecting elements 44 and 45 were constructed by corrugating a wire 3 having a wire diameter of 0.3 mm to a pitch of 5 mm and a height of 2 mm, and crowding the wire rod 3 to a density of about 4.7 kg/m 3 .

また、図示されるように排気微粒子捕集装置に
おいて、捕集された排気微粒子は堆積室7へ落
下、次いで床面の穴から排気微粒子の処理装置8
へ落下して処理されるように構成される。
Further, as shown in the figure, in the exhaust particulate collection device, the collected exhaust particulates fall into the deposition chamber 7, and then through the hole in the floor to the exhaust particulate processing device 8.
configured to be dropped into and processed.

第2図、第3図に示される実施態様は、排気微
粒子捕集要素(エレメント)4に対し捕集した排
気微粒子を強制的に落下させて背圧の上昇、排気
抵抗の増加、捕集率の低下を防止する装置であ
る。
In the embodiment shown in FIGS. 2 and 3, the collected exhaust particulates are forcibly dropped to the exhaust particulate collecting element 4, thereby increasing the back pressure, increasing the exhaust resistance, and reducing the collection rate. This is a device that prevents a decrease in

第2図のものは、排気微粒子捕集装置4の束縛
端5上部及び又は背面から必要に応じ圧縮空気を
ブローする為のチヤージタンク9及び制御バルブ
10から構成されている。
The one shown in FIG. 2 is comprised of a charge tank 9 and a control valve 10 for blowing compressed air from the top and/or rear side of the bound end 5 of the exhaust particulate collector 4 as required.

また、第3図のものは、排気微粒子捕集要素4
に強制的に揺動や振動を加えるようにしたもので
ある。
In addition, the one in FIG. 3 shows the exhaust particulate collection element 4.
This is a device that forcibly applies rocking or vibration to the

第4図は、エンジンの排気系統における本発明
の排気微粒子捕集装置の位置づけを示す図であ
る。
FIG. 4 is a diagram showing the positioning of the exhaust particulate collection device of the present invention in the exhaust system of an engine.

〔発明の効果〕〔Effect of the invention〕

本発明のデイーゼルエンジン用の排気微粒子捕
集装置は、排気微粒子捕集装置の主要な構成要素
である捕集要素(エレメント)を二以上の排気微
粒子捕集素子(サブエレメント)で構成するとと
もに、各捕集素子の構造とその配設方式に特徴を
もたせていることから、エンジン効率を低下させ
ることなく高い排気微粒子の捕集率(能)を達成
することが出来る。なお、本発明においては、前
記したように排気微粒子捕集要素が複数の捕集要
素で構成されるようにユニツト化されているた
め、排気系統の排気容量などに対して設計自由度
が確保されるので最適な微粒子捕集系を製作した
り、あるいは捕集系のメインテナンスの維持が容
易となるなどの利点を得ることが出来る。
The exhaust particulate collection device for a diesel engine of the present invention includes a collection element, which is a main component of the exhaust particulate collection device, including two or more exhaust particulate collection elements (sub-elements), and Since the structure of each collection element and its arrangement method are unique, it is possible to achieve a high collection rate of exhaust particulates without reducing engine efficiency. In addition, in the present invention, as described above, since the exhaust particulate collection element is unitized to be composed of a plurality of collection elements, a degree of freedom in designing the exhaust capacity of the exhaust system is ensured. Therefore, it is possible to obtain advantages such as manufacturing an optimal particulate collection system and facilitating maintenance of the collection system.

また、本発明の排気微粒子捕集装置は、排気微
粒子に対する捕集機能と処理機能を別々の装置に
分けたことにより、従来の捕集装置のように電気
ヒータやバーナ等の熱源により加熱燃焼反応を行
なわしめる機能を必要としないこと、また極めて
高価なセラミツクモノリス等の耐熱材料を使用す
る必要がないこと、更に、セラミツクモノリス等
の脆く且つ小さな熱膨張系数に起因する各部への
大きな熱応力の発生を防止するための耐熱耐食性
を持つた高価なステンレス鋼製クツシヨン材の使
用を排除することができること、などからして極
めて経済的なものである。
In addition, the exhaust particulate collection device of the present invention separates the collection function and processing function for exhaust particulates into separate devices, so unlike conventional collection devices, the exhaust particulate collection device uses a heat source such as an electric heater or a burner to perform a heating combustion reaction. In addition, there is no need to use heat-resistant materials such as extremely expensive ceramic monoliths, and there is no need to use heat-resistant materials such as extremely expensive ceramic monoliths. It is extremely economical because it eliminates the need for expensive stainless steel cushioning materials that have heat and corrosion resistance to prevent this.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のデイーゼルエンジン用排気微
粒子捕集装置の断面図である。第2図は、排気微
粒子捕集要素に捕集された微粒子の第一の落下促
進手段を示すもので、ブローイング手段を示して
いる。第3図は、排気微粒子捕集要素に捕集され
た微粒子の第二の落下促進手段を示すもので、振
動手段を示している。第4図はエンジン、排気系
統における本発明の排気微粒子捕集装置の位置づ
けを示す図である。 1……排気微粒子捕集装置、2……排気ガス通
路、3……線材、4……排気微粒子捕集要素、4
1,42,43,44,45……排気微粒子捕集
素子、5……束縛端、6……自由端、7……排気
微粒子堆積室、8……排気微粒子処理装置。
FIG. 1 is a sectional view of an exhaust particulate collector for a diesel engine according to the present invention. FIG. 2 shows a first means for accelerating the fall of the particulates collected by the exhaust particulate collecting element, and shows a blowing means. FIG. 3 shows a second means for promoting the fall of particulates collected by the exhaust particulate collecting element, and shows a vibration means. FIG. 4 is a diagram showing the positioning of the exhaust particulate collector of the present invention in the engine and exhaust system. DESCRIPTION OF SYMBOLS 1...Exhaust particulate collection device, 2...Exhaust gas passage, 3...Wire rod, 4...Exhaust particulate collection element, 4
1, 42, 43, 44, 45...Exhaust particulate collection element, 5...Bound end, 6...Free end, 7...Exhaust particulate deposition chamber, 8...Exhaust particulate processing device.

Claims (1)

【特許請求の範囲】 1 デイーゼルエンジンの排気ガス通路に介装し
た排気微粒子の捕集装置において、前記捕集装置
が、 (i) 多数の耐熱性金属材料からなる線材を密集さ
せ、上端を束ねて束縛端とするとともに下端を
自由端とした二以上の排気微粒子捕集素子であ
つて、 (ii) 前記二以上の排気微粒子捕集素子が、排気ガ
ス流通方向にみて、各素子を構成する線材の密
集密度が高くなるものであり、更に、 (iii) 前記二以上の排気微粒子捕集素子が、排気ガ
ス流通方向にみて、所望の間隔をもつて排気ガ
ス流通路内に束縛端を固定して配設されるもの
である、 ことを特徴とするデイーゼルエンジン用排気微粒
子捕集装置。 2 線材が、波付加工を施したものである特許請
求の範囲第1項に記載の排気微粒子捕集装置。 3 線材の波形が、二以上の排気微粒子捕集素子
において、排気ガス流通方向にみて、順次大ピツ
チ波形から小ピツチ波形に変化するものである特
許請求の範囲第2項に記載の排気微粒子捕集装
置。 4 線材の線径が、二以上の排気微粒子捕集素子
において、排気ガス流通方向にみて、順次大径か
ら小径に変化するものである特許請求の範囲第1
項に記載の排気微粒子捕集装置。
[Scope of Claims] 1. A device for collecting exhaust particulates installed in the exhaust gas passage of a diesel engine, which includes: (i) a large number of wire rods made of heat-resistant metal materials packed together and tied together at the upper ends; (ii) the two or more exhaust particulate collecting elements constitute each element when viewed in the exhaust gas flow direction; (iii) the two or more exhaust particulate collection elements have their bound ends fixed in the exhaust gas flow path with a desired spacing as seen in the exhaust gas flow direction; An exhaust particulate collection device for a diesel engine, characterized in that the device is arranged as follows. 2. The exhaust particulate collection device according to claim 1, wherein the wire rod is corrugated. 3. The exhaust particulate capture device according to claim 2, wherein the waveform of the wire changes sequentially from a large pitch waveform to a small pitch waveform when viewed in the exhaust gas flow direction in two or more exhaust gas particle collection elements. collection device. 4. Claim 1, wherein the wire diameter of the wire changes sequentially from a large diameter to a small diameter when viewed in the exhaust gas flow direction in two or more exhaust gas particle collection elements.
The exhaust particulate collection device described in Section 1.
JP61212792A 1986-09-11 1986-09-11 Exhaust gas fine particle catching device Granted JPS6369519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61212792A JPS6369519A (en) 1986-09-11 1986-09-11 Exhaust gas fine particle catching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61212792A JPS6369519A (en) 1986-09-11 1986-09-11 Exhaust gas fine particle catching device

Publications (2)

Publication Number Publication Date
JPS6369519A JPS6369519A (en) 1988-03-29
JPH0583284B2 true JPH0583284B2 (en) 1993-11-25

Family

ID=16628456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61212792A Granted JPS6369519A (en) 1986-09-11 1986-09-11 Exhaust gas fine particle catching device

Country Status (1)

Country Link
JP (1) JPS6369519A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000140539A (en) * 1998-11-04 2000-05-23 Toshio Awaji Treatment apparatus and treatment method of dust- containing exhaust gas
JP2006035100A (en) * 2004-07-27 2006-02-09 Elc:Kk Air cleaner
JP4961119B2 (en) * 2005-07-22 2012-06-27 住友化学株式会社 Mist separator and method for producing ε-caprolactam using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941227U (en) * 1972-07-15 1974-04-11

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4726572U (en) * 1971-04-17 1972-11-25
JPS6287715U (en) * 1985-11-20 1987-06-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941227U (en) * 1972-07-15 1974-04-11

Also Published As

Publication number Publication date
JPS6369519A (en) 1988-03-29

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