JPH0115684B2 - - Google Patents
Info
- Publication number
- JPH0115684B2 JPH0115684B2 JP20405281A JP20405281A JPH0115684B2 JP H0115684 B2 JPH0115684 B2 JP H0115684B2 JP 20405281 A JP20405281 A JP 20405281A JP 20405281 A JP20405281 A JP 20405281A JP H0115684 B2 JPH0115684 B2 JP H0115684B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- filter member
- openings
- heating means
- 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
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 11
- 238000011144 upstream manufacturing Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process 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
- 238000000034 method Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
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)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【発明の詳細な説明】
本発明は、自動車等の内燃機関から排出される
排気ガスを浄化するための装置、特に排気ガス中
の微粒子を捕集するためのフイルタ部材と、該フ
イルタ部材に捕集された微粒子を燃焼するための
電気的加熱手段とを備えた排気ガス微粒子浄化装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for purifying exhaust gas emitted from an internal combustion engine such as an automobile, and in particular a filter member for collecting particulates in the exhaust gas, and a filter member for collecting particulates in the filter member. The present invention relates to an exhaust gas particulate purification device equipped with an electric heating means for burning the collected particulates.
この種の装置におけるフイルタ部材として、多
孔質の隔壁で仕切られた互に平行な多数の排気ガ
ス通路を有し、これ等通路の排気ガス流入側の開
口を交互に閉鎖するとともに、排気ガス流入側の
開口が開放されている排気ガス通路の排気ガス流
出側の開口を閉鎖したセラミツク製ハニカム構造
体が提案されている。このフイルタ部材では内燃
機関よりの排気ガスは開放された排気ガス通路に
流入するが、該通路の末端が閉じられているので
多孔質の隔壁を横切り、末端が開放された排気ガ
ス通路より排出され、その間に微粒子は隔壁の壁
面に付着する。しかしながら壁面への微粒子の堆
積が進むにつれてフイルタ部材の通気抵抗が次第
に増大し、遂には目づまりを起すようになり、機
関の出力を低下させる。このため、壁面に堆積し
た微粒子を周期的に除去し、フイルタ能力を再生
する必要がある。 The filter member in this type of device has a large number of mutually parallel exhaust gas passages partitioned by porous partition walls, and the openings on the exhaust gas inflow side of these passages are closed alternately. A ceramic honeycomb structure has been proposed in which the opening on the exhaust gas outflow side of the exhaust gas passage is closed, and the opening on the exhaust gas outflow side is closed. In this filter member, exhaust gas from the internal combustion engine flows into the open exhaust gas passage, but since the end of the passage is closed, it crosses the porous partition wall and is exhausted from the exhaust gas passage whose end is open. During this time, the particles adhere to the walls of the partition. However, as the accumulation of particulates on the wall progresses, the ventilation resistance of the filter member gradually increases, eventually causing clogging, which reduces the output of the engine. For this reason, it is necessary to periodically remove the particulates deposited on the wall surface to regenerate the filter performance.
この再生手段として捕集微粒子を燃焼浄化する
ための電気ヒータをフイルタ部材に付設すること
が提案されている。例えば米国特許第4276066号
では、排気ガス流入側（上流側）が開放されたフ
イルタ部材の各排気ガス通路にヒータ線を貫通せ
しめる手段がとられている。しかしながらこの手
段では上流側が開放された各通路にヒータ線を通
すとともに、ヒータ線をこれ等通路の下流側出口
を閉じる端壁に貫通させなければならないために
ヒータ線の組付けが面倒であり、また上記端壁と
これを貫通するヒータ線との間から排気ガスがも
れないようにシールする必要があり、かつヒータ
線の共通の端子を用いると何等かの原因でヒータ
線の一本が切れた場合、これを探し出して交換す
るのに非常に手間がかかる。 As this regeneration means, it has been proposed to attach an electric heater to the filter member for burning and purifying the collected particulates. For example, in US Pat. No. 4,276,066, a heater wire is passed through each exhaust gas passage of a filter member whose exhaust gas inflow side (upstream side) is open. However, with this method, the heater wires must be passed through each passage whose upstream side is open, and the heater wire must be passed through an end wall that closes the downstream outlet of these passages, so assembling the heater wire is troublesome. In addition, it is necessary to seal the space between the end wall and the heater wire that passes through it to prevent exhaust gas from leaking, and if a common terminal for the heater wires is used, one of the heater wires may become disconnected for some reason. If it breaks, it takes a lot of effort to find it and replace it.
また、ハニカム構造のフイルタを再生する場
合、ハニカム構造では各排気ガス通路が四方壁面
で囲まれているため、加熱手段が設けられた排気
ガス通路のみの堆積した捕集微粒子を燃焼する。
すなわち、加熱手段が配設されていない排気ガス
通路に堆積した捕集微粒子が燃焼されることがな
く、圧損の回復を十分に完遂されることがない。 Furthermore, when regenerating a filter with a honeycomb structure, since each exhaust gas passage is surrounded by four walls in the honeycomb structure, the trapped particles accumulated in only the exhaust gas passage provided with the heating means are burned.
That is, the collected particulates deposited in the exhaust gas passage where no heating means are provided are not burned, and the pressure loss is not fully recovered.
本発明はかかる実情に鑑み、加熱手段の構造の
簡素化、および設置の作業性向上を目的としてな
されたもので、加熱手段の発熱部を上記ハニカム
構造のフイルタ部材の再生時における上流側端面
に密着し、ほぼすべての排気ガス通路の開口を横
切るように設置するものである。本発明の浄化装
置においては発熱部の発熱により、排気ガス通路
の開口端付近の捕集微粒子が着火されて燃焼を開
始し、この燃焼による微粒子自体の発熱は排気ガ
ス流により下流側へ伝播されて燃焼が持続し、す
べての捕集微粒子が燃焼される。本発明における
加熱手段は、その発熱部をフイルタ部材の端面に
設置するのみであるので、構造および取付性が極
めて簡易である。さらに発熱部はフイルタ部材の
上流側端面に密着しているので熱的な損失を防ぐ
ことができる。 In view of the above circumstances, the present invention has been made for the purpose of simplifying the structure of the heating means and improving the workability of installation. It is installed in close contact and across almost all exhaust gas passage openings. In the purification device of the present invention, the collected particulates near the opening end of the exhaust gas passage are ignited by the heat generated by the heat generating part and start burning, and the heat generated by the particulates themselves due to this combustion is propagated downstream by the exhaust gas flow. The combustion continues until all collected particulates are burned. The heating means according to the present invention is extremely simple in structure and installation because its heat generating portion is simply installed on the end face of the filter member. Furthermore, since the heat generating portion is in close contact with the upstream end face of the filter member, thermal loss can be prevented.
以下、本発明を図示の実施例により説明する。 Hereinafter, the present invention will be explained with reference to illustrated embodiments.
第１図は加熱手段を備えたフイルタ部材の構成
を示すもので、フイルタ部材１は多孔質の隔壁１
１により仕切られた互に平行な多数の排気ガス通
路１２を有するセラミツク製、例えばコージエラ
イトのハニカム構造体で、通路１２の上流側の開
口は交互に端壁１３で閉じられ、上流側が開放さ
れた通路１２の後流側開口は端壁１４により閉じ
られている。フイルタ部材１の上流側端面には加
熱手段の発熱部２が設置してある。微粒子を含む
排気ガス（黒い矢印）の大部分は排気ガス通路１
２の開放された開口より流入し、隔壁１１を通過
して後流が開放された通路１２より出る（白い矢
印）。そして微粒子は衝突、拡散等により隔壁１
１の壁面に捕集堆積され、排気ガスは浄化され
る。微粒子捕集量が所定値に達すると、発熱部２
に通電され、通路１２の開口部に堆積した微粒子
が着火されて燃焼を開始し、その熱は排気ガス流
により微粒子が堆積する隔壁１１の壁面に沿つて
移送されて燃焼が持続し、フイルタ部材１の最後
部まで再生が行なわれる。 FIG. 1 shows the structure of a filter member equipped with a heating means.
It is a honeycomb structure made of ceramic, for example, cordierite, having a large number of mutually parallel exhaust gas passages 12 partitioned by 1, the openings on the upstream side of the passages 12 are alternately closed with end walls 13, and the upstream side is open. The downstream opening of the passage 12 is closed by an end wall 14 . A heat generating part 2 of a heating means is installed on the upstream end face of the filter member 1. Most of the exhaust gas containing particulates (black arrow) is in the exhaust gas passage 1.
2 flows in through the open opening, passes through the partition wall 11, and exits through the open passage 12 (white arrow). Then, the particles move to the partition wall 1 due to collision, diffusion, etc.
The exhaust gas is collected and deposited on the wall of 1, and the exhaust gas is purified. When the amount of collected particles reaches a predetermined value, the heat generating part 2
is energized, the particulates deposited at the opening of the passage 12 are ignited and combustion begins, and the heat is transferred by the exhaust gas flow along the wall surface of the partition wall 11 on which the particulates are deposited, and the combustion continues. Playback continues until the last part of 1.
第２図は浄化装置の具体的構成の一例を示すも
ので、８は円筒状のフイルタ部材収納容器で、内
燃機関の排気管（図示せず）の途中に介設され、
その中にフイルタ部材１が挿入される。電気的加
熱手段の発熱部２ａ，２ｂ，２ｃ，２ｄはTiC，
SiCなどの導電性セラミツクよりなり、円板状の
ハニカム構造体を四分割した形状を有しており、
フイルタ部材１の上流側端面にそれぞれの格子状
隔壁２１がフイルタ部材１の排気ガス通路１２の
上流側ほぼすべての開口を横切るように配され
る。 FIG. 2 shows an example of a specific configuration of the purification device, and 8 is a cylindrical filter member storage container, which is interposed in the middle of an exhaust pipe (not shown) of an internal combustion engine.
A filter member 1 is inserted therein. The heating parts 2a, 2b, 2c, 2d of the electric heating means are made of TiC,
It is made of conductive ceramic such as SiC and has the shape of a disc-shaped honeycomb structure divided into four parts.
Each lattice-like partition wall 21 is arranged on the upstream end face of the filter member 1 so as to cross almost all the openings on the upstream side of the exhaust gas passage 12 of the filter member 1.
各発熱部２ａ，２ｂ，２ｃ，２ｄのまわりには
導電性クツシヨン材４を介して円弧状の＋側電極
取出し端子３ａ，３ｂ，３ｃ，３ｄが配設され
る。また、各発熱部２ａ，２ｂ，２ｃ，２ｄ間の
対向間隙には絶縁部材５が充填される。この状態
で、各電極取出し端子３ａ，３ｂ，３ｃ，３ｄを
挾んで、容器８のフランジ部８１と容器８の入口
部を構成するコーン型の部材（図示せず）の大径
側開口に形成したフランジ部とをボルト等で結合
することにより、発熱部２ａ，２ｂ，２ｃ，２ｄ
はフイルタ部材１の端面に固定される。なお、上
記コーン型部材の小径端は上流側の排気管に連結
される。容器８の後流側にも上記フランジ部８１
と同様のフランジ部が形成され、上記を同様のコ
ーン型部材を介して下流側の排気管に連結され
る。 Arc-shaped + side electrode extraction terminals 3a, 3b, 3c, 3d are arranged around each heat generating portion 2a, 2b, 2c, 2d via a conductive cushion material 4. Furthermore, an insulating member 5 is filled in the opposing gaps between the heat generating parts 2a, 2b, 2c, and 2d. In this state, each electrode extraction terminal 3a, 3b, 3c, 3d is sandwiched between the flange portion 81 of the container 8 and the large diameter opening of a cone-shaped member (not shown) that constitutes the inlet portion of the container 8. The heat generating parts 2a, 2b, 2c, 2d are connected to the flange parts with bolts etc.
is fixed to the end face of the filter member 1. Note that the small diameter end of the cone-shaped member is connected to the upstream exhaust pipe. The flange portion 81 is also provided on the downstream side of the container 8.
A flange similar to the above is formed, and is connected to the downstream exhaust pipe via a similar cone-shaped member.
４個の発熱部２ａ，２ｂ，２ｃ，２ｄが対向す
る発熱部中央の間隙には一側電極取出し端子６が
嵌入される。そして両端子３ａ〜３ｄ、６は電源
７に接続される。 One side electrode extraction terminal 6 is inserted into the gap at the center of the heat generating part where the four heat generating parts 2a, 2b, 2c, and 2d face each other. Both terminals 3a to 3d and 6 are connected to a power source 7.
第３図および第４図の実施例では、各発熱部２
ａ，２ｂ，２ｃ，２ｄ相互間およびこれ等とフイ
ルタ部材１の端面とは、各発熱体間の間隙に充填
した電気絶縁、耐熱、耐腐性のセラミツクを主成
分とする接着剤５０により結合されている。＋側
端子３０ａ，３０ｂ，３０ｃ，３０ｄは各発熱部
と同一材質で各発熱部と一体成形されている。本
実施例は前記実施例よりも発熱部の組付構造の簡
素化をはかつたものである。 In the embodiments shown in FIGS. 3 and 4, each heat generating section 2
a, 2b, 2c, and 2d, and these and the end face of the filter member 1 are bonded by an adhesive 50 whose main component is electrically insulating, heat-resistant, and corrosion-resistant ceramic, which is filled in the gap between each heating element. has been done. The + side terminals 30a, 30b, 30c, and 30d are made of the same material as each heat generating part and are integrally molded with each heat generating part. In this embodiment, the assembly structure of the heat generating part is simpler than in the previous embodiment.
第５図は加熱手段の発熱部としてニクロム線の
如き発熱線を用いた実施例を示すものである。発
熱線は４グループよりなり各発熱線２０ａ，２０
ｂ，２０ｃ，２０ｄはフイルタ部材１の端面にジ
グザグ状に配され、フイルタ部材１の排気ガス通
路１２の各開口を横切つている。各発熱線は耐熱
性を有するセラミツクを主成分とする接着剤５０
によりフイルタ部材１の端面に固着されており、
中央部で一側の端子６０と一体に接合されてい
る。本実施例では発熱線を用いてフイルタ部材１
の端面開口を横切るように配したので、前記各実
施例の場合よりもフイルタ部材１の端面の閉鎖面
を横切る部分が少なく、それだけ捕集微粒子着火
のために供給される電力の無駄が少くなる。 FIG. 5 shows an embodiment in which a heating wire such as a nichrome wire is used as the heating portion of the heating means. The heating wires consist of 4 groups, each heating wire 20a, 20
b, 20c, and 20d are arranged in a zigzag pattern on the end face of the filter member 1, and cross each opening of the exhaust gas passage 12 of the filter member 1. Each heating wire is made of adhesive 50 whose main component is heat-resistant ceramic.
is fixed to the end face of the filter member 1 by
It is integrally joined to the terminal 60 on one side at the center. In this embodiment, the filter member 1 is
Since it is arranged so as to cross the end face opening of the filter member 1, the portion that crosses the closed face of the end face of the filter member 1 is smaller than in the case of each of the above embodiments, and the waste of power supplied for igniting the collected particulates is correspondingly reduced. .
以上の各実施例では、フイルタ部材１の端面を
複数のブロツクに分けてそれぞれ加熱手段の発熱
部を設け、独立に通電加熱してフイルタ部材１を
部分的に順次再生するようにしたが、単一の発熱
部を設けフイルタ部材全体を同時に再生するよう
にしてもよい。複数の発熱部を設けると、フイル
タ部材を再生するときに一時に大電力が消費され
ない点ですぐれている。 In each of the above embodiments, the end face of the filter member 1 is divided into a plurality of blocks, each of which is provided with a heat generating part of the heating means, and the filter member 1 is partially sequentially regenerated by being electrically heated independently. One heat generating section may be provided to simultaneously regenerate the entire filter member. Providing a plurality of heat generating parts is advantageous in that a large amount of power is not consumed at once when regenerating the filter member.
以上要するに本発明はフイルタ部材としてセラ
ミツクハニカム構造体を用い、電気加熱手段の発
熱部をフイルタ部材の再生時における上流側端面
に密着し、ほぼすべてのフイルタ部材の通路開口
を横切るように配設した排気ガス微粒子浄化装置
を提供するもので、上記した従来例におけるよう
にヒータ線をフイルタ部材の各通路に配設するも
のに比べて発熱部の組付けが容易であるととも
に、発熱部は安定的にフイルタ部材に保持され
る。またフイルタ部材の上流側通路開口付近に堆
積した微粒子は上記発熱部の発熱で着火され、燃
焼熱は後流側へと伝播してフイルタ部材に堆積し
た全微粒子は順次後流側へ燃焼され浄化される。
さらに、発熱部はフイルタ部材の上流側端面に密
着しているので熱的な損失を防ぐことができる。 In summary, the present invention uses a ceramic honeycomb structure as a filter member, and the heat generating part of the electric heating means is placed in close contact with the upstream end surface of the filter member during regeneration, and is arranged so as to cross almost all the passage openings of the filter member. This provides an exhaust gas particulate purification device, which is easier to assemble the heat generating part than the conventional example described above in which heater wires are arranged in each passage of the filter member, and the heat generating part is stable. is held by the filter member. In addition, the particulates deposited near the upstream passage opening of the filter member are ignited by the heat generated by the heat generating section, and the combustion heat propagates to the downstream side, and all the particulates deposited on the filter member are sequentially burned and purified to the downstream side. be done.
Furthermore, since the heat generating portion is in close contact with the upstream end face of the filter member, thermal loss can be prevented.
第１図は本発明による微粒子浄化装置の構成説
明図、第２図は第１の実施例の組付構造を示す一
部切欠き斜視図、第３図は第２の実施例の断面図
で第４図の−線断面図、第４図は第２の実施
例の正面図、第５図は第３の実施例の正面図であ
る。
１……フイルタ部材、２，２ａ〜２ｄ，２０ａ
〜２０ｄ……発熱部、３ａ〜３ｄ，３０ａ〜３０
ｄ，６，６０……端子、８……フイルタ部材収納
容器。
Fig. 1 is an explanatory diagram of the structure of a particulate purification device according to the present invention, Fig. 2 is a partially cutaway perspective view showing the assembly structure of the first embodiment, and Fig. 3 is a sectional view of the second embodiment. FIG. 4 is a sectional view taken along the line 4, FIG. 4 is a front view of the second embodiment, and FIG. 5 is a front view of the third embodiment. 1... Filter member, 2, 2a to 2d, 20a
~20d... Heat generating part, 3a~3d, 30a~30
d, 6, 60...Terminal, 8...Filter member storage container.
Claims (1)
集するためのフイルタ部材を設置するとともに、
該フイルタ部材には捕集された微粒子を燃焼浄化
するための電気的加熱手段を付設した排気ガス微
粒子浄化装置において、上記フイルタ部材を多孔
質の隔壁により仕切られた互に平行な多数の排気
ガス通路を有し、これ等排気ガス通路の排気ガス
流入側の開口を交互に閉じるとともに排気ガス流
入側の開口が開放されている排気ガス通路の排気
ガス流出側の開口を閉じたセラミツクハニカム構
造体により構成し、該フイルタ部材の再生時にお
ける排気ガス流入側の端面に密着しかつ上記排気
ガス通路の開放されたほぼすべての開口を横切る
ように電気的加熱手段の発熱部を設置したことを
特徴とする電気的加熱手段を有する排気ガス微粒
子浄化装置。1 Installing a filter member in the exhaust system of the internal combustion engine to collect particulates in the exhaust gas,
In an exhaust gas particulate purification device in which the filter member is equipped with an electric heating means for burning and purifying the collected particulates, the filter member is connected to a large number of mutually parallel exhaust gases partitioned by porous partition walls. A ceramic honeycomb structure having passages, in which the openings on the exhaust gas inflow side of the exhaust gas passages are alternately closed, and the openings on the exhaust gas outflow side of the exhaust gas passages are closed, and the openings on the exhaust gas inflow side are open. characterized in that the heating part of the electric heating means is installed so as to be in close contact with the end face of the exhaust gas inflow side during regeneration of the filter member and to cross almost all the open openings of the exhaust gas passage. An exhaust gas particulate purification device having an electric heating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56204052A JPS58106115A (en) | 1981-12-17 | 1981-12-17 | Exhaust gas fine particle purifier having electric heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56204052A JPS58106115A (en) | 1981-12-17 | 1981-12-17 | Exhaust gas fine particle purifier having electric heating means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58106115A JPS58106115A (en) | 1983-06-24 |
| JPH0115684B2 true JPH0115684B2 (en) | 1989-03-20 |
Family
ID=16483946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56204052A Granted JPS58106115A (en) | 1981-12-17 | 1981-12-17 | Exhaust gas fine particle purifier having electric heating means |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58106115A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58195624U (en) * | 1982-06-23 | 1983-12-26 | トヨタ自動車株式会社 | particle collector |
| JPH0621548B2 (en) * | 1984-08-10 | 1994-03-23 | 松下電器産業株式会社 | Diesel exhaust gas filter |
| JPS61149714U (en) * | 1985-03-06 | 1986-09-16 | ||
| JPH04179818A (en) * | 1990-11-14 | 1992-06-26 | Nippon Soken Inc | Exhaust gas fine particles purifing device |
| JP3001281B2 (en) * | 1991-03-06 | 2000-01-24 | 日本碍子株式会社 | Honeycomb monolith heater |
| KR100472548B1 (en) * | 2001-10-22 | 2005-03-07 | 일진전기 주식회사 | electric heater for exhaust gas of diesel vehicle |
| US7090714B2 (en) | 2002-06-17 | 2006-08-15 | Hitachi Metals, Ltd. | Ceramic honeycomb filter |
-
1981
- 1981-12-17 JP JP56204052A patent/JPS58106115A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58106115A (en) | 1983-06-24 |
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