JPH0122449B2 - - Google Patents
Info
- Publication number
- JPH0122449B2 JPH0122449B2 JP10653481A JP10653481A JPH0122449B2 JP H0122449 B2 JPH0122449 B2 JP H0122449B2 JP 10653481 A JP10653481 A JP 10653481A JP 10653481 A JP10653481 A JP 10653481A JP H0122449 B2 JPH0122449 B2 JP H0122449B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- exhaust gas
- particulates
- resistors
- heat generating
- 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
Links
- 238000000746 purification Methods 0.000 claims description 11
- 239000012212 insulator Substances 0.000 claims description 10
- 239000013618 particulate matter Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 25
- 238000011144 upstream manufacturing Methods 0.000 description 14
- 239000000919 ceramic Substances 0.000 description 9
- 239000000446 fuel Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Description
【発明の詳細な説明】
この発明は、デイーゼルエンジンの排気ガス中
に含まれる微粒子、特に炭素を主体とするパテイ
キユレートを捕集して排気ガスを浄化する排気ガ
ス中の微粒子捕集浄化装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for collecting and purifying particulates in exhaust gas, which purifies the exhaust gas by collecting particulates contained in the exhaust gas of a diesel engine, particularly particulates mainly composed of carbon.
デイーゼルエンジンからの排気中には、特に炭
素を主体とする微粒子状のパテイキユレートが含
まれるもので、このパテイキユレートを捕集して
浄化した後に、大気中に排出する必要がある。こ
のため、デイーゼルエンジンの排気ガス通路に
は、これら微粒子を捕集する浄化装置が設けられ
るもので、この浄化装置としては、セラミツク製
のハニカム構造体、あるいは発泡構造体よりなる
フイルタを用いることが考えられている。 Exhaust from a diesel engine contains particularly particulate particulates mainly composed of carbon, and these particulates must be collected and purified before being discharged into the atmosphere. For this reason, a purification device is installed in the exhaust gas passage of a diesel engine to collect these particulates.As this purification device, a filter made of a ceramic honeycomb structure or a foam structure can be used. It is considered.
しかし、このような微粒子を捕集する浄化装置
を、デイーゼルエンジンの排気ガスの通路中に設
けて長期間使用した場合、排気ガス中の微粒子が
つまり、排気通路の抵抗が増大してエンジンの出
力抵下をまねく。このような現象を防止するため
には、バーナを用いて捕集された微粒子を燃焼浄
化することが考えられている。しかしながら、バ
ーナシステムとしては、燃料供給装置、点火装置
等の高価で且つ大型化するデバイスが必要であ
り、必然的にコストアツプの原因となる。また、
排気系に対して燃料を導くようになるものである
ため、火炎等の事故の発生のおそれが多いもので
あり、さらに燃料系統を定期的に保守する必要も
ある。 However, if a purification device that collects such particulates is installed in the exhaust gas passage of a diesel engine and used for a long period of time, the particulates in the exhaust gas will clog, increasing the resistance of the exhaust passage and reducing the engine's output. lead to defiance. In order to prevent such a phenomenon, it has been considered to burn and purify the collected particulates using a burner. However, the burner system requires expensive and large-sized devices such as a fuel supply device and an ignition device, which inevitably increases costs. Also,
Since fuel is led to the exhaust system, there is a high risk of accidents such as flames occurring, and the fuel system also requires periodic maintenance.
この発明は上記のような点に鑑みなされたもの
で、デイーゼルエンジンからの排気中に含まれる
微粒子を捕集すると共に、これを安全且つ確実に
して小型簡易化して構成し、浄化率も高くし且つ
フイルタの再生も容易なものとする排気ガス中の
微粒子捕集浄化装置を提供しようとするものであ
る。 This invention was made in view of the above points, and it is an object to collect fine particles contained in the exhaust from a diesel engine, and to do so safely and reliably, with a compact and simple structure, and with a high purification rate. It is an object of the present invention to provide a device for collecting and purifying particulates in exhaust gas, in which the filter can be easily regenerated.
すなわち、この発明に係る排気ガス中の微粒子
捕集浄化装置にあつては、排気ガス中の微粒子を
捕集するフイルタの、上記ガス流の上流側の面に
複数の面積部分に分割し、この分割された各面積
部分にそれぞれ独立して加熱制御されるようにな
る複数の発熱抵抗体を配置設定するものであり、
また上記フイルタの外周部分に対応して碍子を配
置設定し、上記発熱抵抗体のそれぞれ一端部は上
記碍子部分に集合され、この碍子部から加熱電源
に接続されるようにし、上記複数の発熱抵抗体
は、順次通電加熱制御れるようにしたものであ
る。 That is, in the exhaust gas particulate collection and purification device according to the present invention, the surface of the upstream side of the gas flow of the filter that collects particulates in the exhaust gas is divided into a plurality of area parts, A plurality of heating resistors are placed in each divided area so that the heating can be controlled independently.
Further, an insulator is arranged and set corresponding to the outer peripheral part of the filter, and one end of each of the heat generating resistors is collected in the insulator part and connected to a heating power source from this insulator part, and the plurality of heat generating resistors are connected to the heating power source. The body can be sequentially heated and energized.
以下図面を参照してこの発明の一実施例を説明
する。第１図および第２図はその構成を示したも
ので、例えば断面だ円状の長円筒状のケース１１
を備え、このケース１１は例えばステンレスで構
成される。このステンレス製ケース１１の内側面
には、断熱層１２が形成され、その内部にコージ
ライト質の多孔質性発泡セラミツクでなるフイル
タ１３が充填されている。すなわち、このフイル
タ１３部で矢印１４で示す方向の排気ガス中に含
まれる微粒子を捕集するもので、このセラミツク
フイルタ１３のガス流の上流側表面部に、発熱抵
抗体１５が設定される。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show the structure, for example, a long cylindrical case 11 with an elliptical cross section.
The case 11 is made of stainless steel, for example. A heat insulating layer 12 is formed on the inner surface of the stainless steel case 11, and a filter 13 made of cordierite porous ceramic foam is filled inside the heat insulating layer 12. That is, the filter 13 is used to collect particulates contained in the exhaust gas in the direction indicated by the arrow 14, and a heating resistor 15 is set on the surface of the ceramic filter 13 on the upstream side of the gas flow.
この発熱抵抗体１５は、例えば第３図に示すよ
うに、コイル状に巻かれたニクロム線等の抵抗線
で構成される。また、ニクロム線にかわり、0.3φ
〜2.0φのFe−Cr線、カンタル線、Ｗ線等を用い
るようにしてもよく、また第４図に示すようにコ
イル状に巻かれた抵抗線ではなく、成形、焼成さ
れた炭化硅素によつて構成するようにしてもよ
い。 The heating resistor 15 is composed of a resistance wire such as a nichrome wire wound into a coil, as shown in FIG. 3, for example. Also, instead of nichrome wire, 0.3φ
~2.0φ Fe-Cr wire, Kanthal wire, W wire, etc. may be used, and as shown in Fig. 4, instead of the resistance wire wound into a coil, it is possible to use formed and fired silicon carbide wire. It may also be configured accordingly.
上記ケース１１の上流側の短径部には、両端を
ケース１１上に溶接した板状の接地電極１６が設
けられ、また長径部両側には、それぞれ碍子ケー
ス１７ａ，１７ｂで保持される碍子１８ａ，１８
ｂが設けられる。この碍子１８ａ，１８ｂそれぞ
れに対接するフイルタ１３部には、それぞれ凹欠
部１９ａ，１９ｂが形成され、碍子１８ａ，１８
ｂそれぞれで４個の電極２０ａ〜２０ｄおよび２
０ｅ〜２０ｈを保持し、その一端をケース１１の
外部に導出してなる。 A plate-shaped ground electrode 16 whose both ends are welded onto the case 11 is provided on the short diameter part of the upstream side of the case 11, and insulators 18a held on both sides of the long diameter part are respectively held by insulator cases 17a and 17b. ,18
b is provided. Concave cutouts 19a and 19b are formed in the filter 13 portions that are in contact with the insulators 18a and 18b, respectively, and the insulators 18a and 18
b each with four electrodes 20a to 20d and 2
0e to 20h are held, and one end thereof is led out to the outside of the case 11.
また、セラミツクフイルタ１３の上流側表面に
は、凹欠部１９ａ，１９ｂそれぞれと接地電極１
６との間を結び、それぞれフイルタ１３の上流側
表面を分割するようにして、蛇行するようにそれ
ぞれ４本の溝構造体２１ａ〜２１ｄおよび２１ｅ
および２１ｈを形成し、この溝構造体２１ａ〜２
１ｈそれぞれに独立した発熱抵抗体１５ａ〜１５
ｈが埋設設定される。そして、この抵抗体１５ａ
〜１５ｈの一端は接地電極１６に溶接等で接続さ
れ、他端は凹欠部１９ａ，１９ｂそれぞれに導出
される電極２０ａ〜２０ｄおよび２０ｅ〜２０ｈ
にそれぞれ接続される。そして、このように発熱
抵抗体１５ａ〜１５ｈを埋設したフイルタ１３の
上流側は、通気性、断熱性を有するセラミツク製
のハニカム構造体２２が圧着され、抵抗体１５ａ
〜１５ｈを固定保持するようにされる。 Further, the upstream surface of the ceramic filter 13 has recessed portions 19a and 19b, and a ground electrode 1.
6, and divide the upstream surface of the filter 13 into four meandering groove structures 21a to 21d and 21e, respectively.
and 21h, and these groove structures 21a to 21h are formed.
Independent heating resistors 15a to 15 for each 1h
h is set to be buried. And this resistor 15a
One end of ~15h is connected to the ground electrode 16 by welding or the like, and the other end is connected to electrodes 20a~20d and 20e~20h led out to the recessed parts 19a and 19b, respectively.
are connected to each. The upstream side of the filter 13 in which the heating resistors 15a to 15h are buried is a ceramic honeycomb structure 22 having air permeability and heat insulation properties.
~15h is held fixed.
この場合、第５図に示すようにセラミツクフイ
ルタ１３に形成される溝構造体２１ａ，２１ｂ…
……の溝部の高さより、これに埋設される抵抗体
１５ａ，１５ｂ………の径を少し大き目にして、
上からハニカム構造体２２で押え付けるようにす
ると、発熱抵抗体１５ａ，１５ｂ………とフイル
タ１３とが確実に密着し、抵抗体１５ａ，１５ｂ
………による熱が効果的にフイルタ１３に伝達さ
れ、熱損失が効果的に防ぐことができる。 In this case, as shown in FIG. 5, groove structures 21a, 21b, . . . are formed in the ceramic filter 13.
The diameters of the resistors 15a, 15b buried in the grooves are made slightly larger than the height of the grooves,
If the honeycomb structure 22 is pressed from above, the heating resistors 15a, 15b... and the filter 13 will be in close contact with each other, and the resistors 15a, 15b will be in close contact with each other.
The heat caused by... is effectively transferred to the filter 13, and heat loss can be effectively prevented.
２３はフイルタ１３を固定するステンレス製の
ワイヤネツトであり、断熱層１２は発熱抵抗体１
５に対応して設定する固定部材として作用され、
例えばグラスウール、石綿によつて構成すればよ
い。すなわち、発熱抵抗体１５の外周部さらに上
流側は、断熱層１２およびハニカム構造体２２で
覆うように構成されている。 23 is a stainless steel wire net that fixes the filter 13, and the heat insulating layer 12 is the heat generating resistor 1.
Acts as a fixing member set corresponding to 5,
For example, it may be made of glass wool or asbestos. That is, the outer periphery of the heating resistor 15 on the further upstream side is covered with the heat insulating layer 12 and the honeycomb structure 22.
ここで、セラミツクフイルタ１３の上流側表面
には、それぞれ電極２０ａ〜２０ｈそれぞれと接
地電極１６との間に独立的に接続される８組の発
熱抵抗体１５ａ〜１５ｈが埋設設定されるもので
あるが、これら抵抗体１５ａ〜１５ｈそれぞれ
は、フイルタ１３の上流側表面の面積をそれぞれ
分割して分担する状態に設定されている。そし
て、特に図では説明してないが、これら発熱抵抗
体１５ａ〜１５ｈそれぞれに対しては、電極２０
ａ〜２０ｈそれぞれを介して順次加熱用電源を供
給し、上記分担されたフイルタ１３の上流表面部
を順次加熱させるように制御するものである。 Here, eight sets of heating resistors 15a to 15h are buried in the upstream surface of the ceramic filter 13 and are independently connected between each of the electrodes 20a to 20h and the ground electrode 16. However, each of these resistors 15a to 15h is set to divide and share the area of the upstream surface of the filter 13, respectively. Although not specifically explained in the figure, for each of these heating resistors 15a to 15h, electrodes 20
The heating power source is sequentially supplied through each of the filters a to 20h, and control is performed to sequentially heat the upstream surface portions of the filters 13 that have been distributed.
すなわち、このような構成の浄化装置にあつて
は、フイルタ１３の上流側表面の各分割された面
積範囲を、発熱抵抗体１５ａ〜１５ｈそれぞれで
加熱し、フイルタ１３に捕集される微粒子を燃焼
浄化させる構造となるものあり、特にこの複数の
発熱抵抗体１５ａ〜１５ｈに対しては、順次加熱
電源が供給されるようになるものである。したが
つて、微粒子を燃焼し、フイルタ機能を再生する
ために要する電気エネルギーも小さなもので済む
ものであり、またこの再生している部分もその再
生中に排気ガス中から微粒子を捕集し続ける状態
となる。このため、微粒子の補集機能、フイルタ
の再生機能も高能率化することができ、フイルタ
部を小型化するために大きな効果を発揮すること
ができる。 That is, in the purification device having such a configuration, each divided area range of the upstream surface of the filter 13 is heated by each of the heating resistors 15a to 15h, and the particulates collected by the filter 13 are combusted. There is a structure for purification, and in particular, heating power is sequentially supplied to the plurality of heat generating resistors 15a to 15h. Therefore, the electrical energy required to burn the particulates and regenerate the filter function is small, and the regenerating part also continues to collect particulates from the exhaust gas during the regeneration. state. Therefore, the particulate collection function and the filter regeneration function can be made highly efficient, and a great effect can be achieved in reducing the size of the filter section.
なお、上記実施例では、発熱抵抗体の数を８個
として示したが、この抵抗体の数は、ある程度多
い程電気エネルギーを効率的に使用できるもので
ある。しかし、実際にはその数をあまり増加する
と、その各発熱抵抗体に対する電極の取り回りが
複雑となり、実際には３〜12個程度が適当であろ
う。また、発熱抵抗体に対する通電制御は、エン
ジンが充分暖機し、排気ガス温度が上昇した条件
で行なうと、電気エネルギーの節約の点から好ま
しい。 In the above embodiment, the number of heat generating resistors is eight, but electric energy can be used more efficiently as the number of resistors increases to a certain extent. However, in reality, if the number is increased too much, the arrangement of electrodes for each heating resistor becomes complicated, and in reality, about 3 to 12 would be appropriate. Further, it is preferable from the viewpoint of saving electrical energy that the current supply to the heat generating resistor is controlled under the conditions that the engine has sufficiently warmed up and the exhaust gas temperature has risen.
その他、実施例ではこの浄化装置の外形を断面
だ円形状の筒体として示し、また、この断面だ円
形の長径部から電極を取り出すようにして示し
た。このようにすると、アセンブリの形状が薄く
なり、車輛に取り付ける際に、その収容容積を容
易に設定することができる特徴を発揮する。しか
し、このような形状は特に上記実施例に限定され
るものではないことはもちろんである。 In addition, in the examples, the outer shape of this purifying device is shown as a cylinder with an oval cross section, and the electrodes are shown as being taken out from the long diameter part of this oval cross section. In this way, the shape of the assembly becomes thinner, and when the assembly is installed in a vehicle, the storage volume thereof can be easily set. However, it goes without saying that such a shape is not particularly limited to the above embodiment.
また、上記実施例では、セラミツクフイルタ１
３の上流側表面に溝構造体を形成し、この溝構造
体に対して発熱抵抗体を埋設するようにして示し
た。しかし、この発熱抵抗体は、フイルタ１３の
上流側表面部に対接して固定接定されるようにす
ればよいものであり、特にフイルタ１３の表面に
溝構造体を形成する必要はない。 Further, in the above embodiment, the ceramic filter 1
A groove structure is formed on the upstream surface of No. 3, and a heating resistor is embedded in this groove structure. However, this heating resistor only needs to be fixedly connected to the upstream surface of the filter 13, and there is no particular need to form a groove structure on the surface of the filter 13.
第６図は、この発明の他の実施例を示すもの
で、フイルタ１３の上流側表面に圧接する状態で
設けられるハニカム構造体２２に対して、発熱抵
抗体１５ａ，１５ｂ………それぞれを収納固定す
る溝構造体を形成する。また、このように設定さ
れる発熱抵抗体１５ａ，１５ｂ………それぞれか
らの端子取り出しは、フイルタ１３の中心部に断
熱層２３を介して形成した透孔２４を通して行な
うと効果的である。すなわち、各発熱抵抗体１５
ａ，１５ｂ………それぞれに接続される端子線２
５ａ，２５ｂ………を、互に電気的に絶縁した状
態で、透孔２４から取り出すものである。 FIG. 6 shows another embodiment of the present invention, in which heating resistors 15a, 15b are housed in a honeycomb structure 22 provided in pressure contact with the upstream surface of the filter 13. A groove structure for fixing is formed. Further, it is effective to take out the terminals from each of the heating resistors 15a, 15b, etc. set in this way, through a through hole 24 formed in the center of the filter 13 with a heat insulating layer 23 interposed therebetween. That is, each heating resistor 15
a, 15b......Terminal wire 2 connected to each
5a, 25b... are taken out from the through hole 24 in a state where they are electrically insulated from each other.
以上のようにこの発明によれば、デイーゼルエ
ンジンからの排気中に含まれる微粒子、いわゆる
パテイキユレートはフイルタ部で捕集されると共
に、この捕集されたパテイキユレートは、各面積
分担されて設定された発熱抵抗体によつて、順次
効率的に且つ小電気エネルギーのもとに燃焼され
浄化される。この場合、この浄化装置部に対し
て、燃料等を供給する必要のないものであるた
め、構造的に非常に簡略化したものとすることが
できるばかりか、火炎等の事故の発生のおそれも
ないものであり、効率的であるばかりか、安全性
に非常に優れた排気ガスに対する浄化装置とする
ことができる。 As described above, according to the present invention, particulate matter contained in exhaust gas from a diesel engine, so-called particulate matter, is collected in the filter section, and the collected particulate matter is distributed to each area to generate heat. By means of a resistor, it is burned and purified in turn efficiently and with a small amount of electrical energy. In this case, since there is no need to supply fuel etc. to this purification device, it is not only possible to have a very simplified structure, but also to reduce the risk of accidents such as flames. This makes it possible to provide an exhaust gas purification device that is not only efficient but also extremely safe.
この場合、実施例に示したようにフイルタに対
してハニカム構造体を組み合わせ使用することに
よつて、通気性を保ちながら、断熱性を有し、発
熱抵抗体による発生熱の輻射熱損失を効果的に防
止することができ、効率的にパテイキユレートを
燃焼させることができる。 In this case, by using a honeycomb structure in combination with the filter as shown in the example, it has heat insulation properties while maintaining breathability, and effectively reduces the radiant heat loss of the heat generated by the heating resistor. It is possible to prevent this, and to efficiently burn particulate.
第１図はこの発明の一実施例に係る浄化装置の
一部切挽いて示す正面図、第２図は第１図の−
線断面図、第３図および第４図はそれぞれ上記
装置に使用される発熱抵抗体の例を示す図、第５
図はフイルタに対する発熱抵抗体の取り付部を説
明する断面図、第６図はこの発明の他の実施例を
説明する一部を切欠いて示した図である。
１１……フレーム、１２……断熱層、１３……
セラミツク発泡フイルタ、１５，１５ａ，１５ｂ
……発熱抵抗体、１６……接地電極、１８ａ，１
８ｂ……碍子、２０ａ〜２０ｈ……電極、２１
ａ，２１ｂ……溝構造体、２２……ハニカム構造
体。
FIG. 1 is a partially cutaway front view of a purification device according to an embodiment of the present invention, and FIG.
A line sectional view, FIG. 3, and FIG. 4 are diagrams showing examples of heating resistors used in the above device, and FIG.
The figure is a cross-sectional view illustrating the mounting portion of the heating resistor to the filter, and FIG. 6 is a partially cutaway view illustrating another embodiment of the present invention. 11... Frame, 12... Heat insulation layer, 13...
Ceramic foam filter, 15, 15a, 15b
...Heating resistor, 16...Grounding electrode, 18a, 1
8b...Insulator, 20a-20h...Electrode, 21
a, 21b...Groove structure, 22...Honeycomb structure.
Claims (1)
され、他方の開口部から上記排気ガスが導出され
るようにした筒状のフレームと、 この筒状のフレーム内に設置されて上記排気ガ
スを通過させ、このガス中の微粒子を捕集するよ
うになるフイルタと、 このフイルタの上記通過する排気ガスの上流側
に設定され、上記フイルタの上記排気ガスの上流
側の面をそれぞれ部分的に加熱するようにした複
数組の発熱抵抗体と、 上記フレーム部分に対応して、上記フイルタの
外周端部分に位置して設定された碍子と、 上記複数の発熱抵抗体それぞれの少なくとも一
方の端部は、上記碍子部分に集合されるように配
置設定し、上記複数の発熱抵抗体は、順次電気的
に発熱制御されるようにしたことを特徴とする排
気ガス中の微粒子捕集浄化装置。[Claims] 1. A cylindrical frame in which engine exhaust gas is introduced through one opening and the exhaust gas is led out through the other opening; a filter that allows the exhaust gas to pass through and collects particulates in the gas; a plurality of sets of heat generating resistors, each of which is partially heated; an insulator positioned at an outer peripheral end portion of the filter corresponding to the frame portion; and at least one of each of the plurality of heat generating resistors. Particulate matter collection in exhaust gas characterized in that one end is arranged so as to be gathered at the insulator part, and the plurality of heat generating resistors are sequentially electrically controlled to generate heat. Purification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56106534A JPS588219A (en) | 1981-07-08 | 1981-07-08 | Collecting and purifying system of corpuscles in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56106534A JPS588219A (en) | 1981-07-08 | 1981-07-08 | Collecting and purifying system of corpuscles in exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588219A JPS588219A (en) | 1983-01-18 |
| JPH0122449B2 true JPH0122449B2 (en) | 1989-04-26 |
Family
ID=14436053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56106534A Granted JPS588219A (en) | 1981-07-08 | 1981-07-08 | Collecting and purifying system of corpuscles in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588219A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59168512U (en) * | 1983-04-28 | 1984-11-12 | マツダ株式会社 | Diesel engine exhaust purification device |
| JPH0730918B2 (en) * | 1986-08-20 | 1995-04-10 | 松下電器産業株式会社 | Combustion control device |
| DE4446855C2 (en) * | 1993-12-28 | 1998-11-05 | Nissan Motor | System for treating exhaust gas particles in exhaust gases from an internal combustion engine |
| US8763378B2 (en) | 2007-06-15 | 2014-07-01 | GM Global Technology Operations LLC | Electrically heated particulate filter embedded heater design |
| JP6028348B2 (en) * | 2012-03-14 | 2016-11-16 | 富士電機株式会社 | Electric dust collector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588218A (en) * | 1981-07-07 | 1983-01-18 | Toyota Motor Corp | Exhaust corpuscle purifier for diesel engine |
-
1981
- 1981-07-08 JP JP56106534A patent/JPS588219A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588218A (en) * | 1981-07-07 | 1983-01-18 | Toyota Motor Corp | Exhaust corpuscle purifier for diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS588219A (en) | 1983-01-18 |
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