JPH0610127Y2 - Play electric heat of the exhaust gas after-treatment device - data - Google Patents

Play electric heat of the exhaust gas after-treatment device - data

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Publication number
JPH0610127Y2
JPH0610127Y2 JP12697787U JP12697787U JPH0610127Y2 JP H0610127 Y2 JPH0610127 Y2 JP H0610127Y2 JP 12697787 U JP12697787 U JP 12697787U JP 12697787 U JP12697787 U JP 12697787U JP H0610127 Y2 JPH0610127 Y2 JP H0610127Y2
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Japan
Prior art keywords
heater
exhaust gas
ceramic filter
electric heater
upper
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Active
Application number
JP12697787U
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Japanese (ja)
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JPS6432411U (en
Inventor
信章 武田
洋一郎 河野
保昭 熊谷
浩司 荻田
晴男 須藤
Original Assignee
三菱自動車工業株式会社
日吉電装株式会社
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Priority to JP12697787U priority Critical patent/JPH0610127Y2/en
Publication of JPS6432411U publication Critical patent/JPS6432411U/ja
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Publication of JPH0610127Y2 publication Critical patent/JPH0610127Y2/en
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Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、ディーゼルエンジン等の排出ガス後処理装置の再生用電気ヒータに関する。 Present invention (relates) [devise DETAILED DESCRIPTION relates reproducing electric heater of the exhaust gas aftertreatment device such as a diesel engine.

(従来技術) 従来、たとえば第3図に示すように、ディーゼルエンジン1から排出される粒子状物質:パティキュレート(Pc (Prior art) prior, for example, as shown in FIG. 3, the particulate matter discharged from a diesel engine 1: particulates (Pc
t)をフィルタで捕集して再燃焼させる排出ガス後処理装置2が種々開発されている。 By collecting t) in the filter exhaust gas aftertreatment system 2 for reburning it has been developed.

この排ガス後処理装置2は、排出ガス経路3に配設されたキャニング容器4内に、電気ヒータ5とセラミックフィルタ6を直列に併設して構成されており、通常はセラミックフィルタ6によってPctを捕集して排出ガスを浄化する。 The exhaust gas after-treatment device 2, the arranged has been canning container 4 into the exhaust gas passage 3, an electric heater 5 and the ceramic filter 6 is configured in parallel in series, usually capturing the Pct by ceramic filter 6 for purifying exhaust gas is condensed.

このPctの捕集により目詰りしたセラミックフィルタ6 Ceramic filter 6, which was clogged by the collection of this Pct
は、電気ヒータ5に通電して加熱(600℃以上)することによりPctが再燃焼されて再生される。 Is, Pct is reproduced is afterburning by heating by energizing the electric heater 5 (600 ° C. or higher). このセラミックフィルタ6の再生時は、キャニング容器4内に再生用エアポンプ7を介してエアが実線の矢印で示すように流入されPctの設焼が促進される。 The playback of the ceramic filter 6, the air through the regeneration air pump 7 to the canning container 4 設焼 of Pct is flowed as shown by the solid line arrow is promoted. なお、このセラミックフィルタ再生時における排出ガスは、切換バルブ8の作動によって後処理装置2を迂回するバイパス経路9を通して、破線の矢印で示すようにマフラ10に向けて排出される。 The discharge gas during the ceramic filter regeneration, through the bypass path 9 to bypass the post-processing apparatus 2 by the operation of the switching valve 8, and is discharged toward the muffler 10 as shown by the dashed arrows.

(考案が解決しようとする問題点) ところで、上記従来の排出ガス後処理装置の再生用電気ヒータは、その発熱部の発熱量がその全面に亘って略均一となるように構成されていた。 (Problem devised to be Solved point) By the way, reproducing the electric heater of the conventional exhaust aftertreatment device, the heating value of the heating portion was configured to be substantially uniform over its entire surface.

このため、上記従来の電圧ヒータは、これを加熱した際、自然対流によりセラミックフィルタの上部のみが多く加熱される。 Therefore, the conventional voltage heater upon heating it, only the upper part of the ceramic filter is more heated by natural convection. したがって、この電気ヒータでは、セラミックフィルタの上部のみが再生され、フィルタの下部は再生されずにPctが残留し易くなるため、セラミックフィルタの再生インターバルが短かくなる問題があった。 Accordingly, in this electric heater is reproduced only the upper portion of the ceramic filter, since the lower portion of the filter which tends to residual Pct without being played, there is a problem that the regeneration interval of the ceramic filter becomes shorter.

(問題点を解決するための手段) 本考は上述の問題点を解決するために、上記排出ガス後処理装置において、上記電気ヒータの発熱部を、上記キャニング容器の上部と下部に対応する上部ヒータと下部ヒータとからなる2つに分割された発熱部で構成するとともに、上記上部ヒータの発熱量よりも大きな発熱量のヒータで上記下部ヒータを形成した構成とする。 For this considered (means for solving the problems) to solve the problems described above, in the exhaust gas after-treatment device, the heat generating portion of the electric heater, the upper corresponding to the upper and lower portions of the canning containers together consist of two to split the heating unit comprising a heater and a lower heater, a structure in which the formation of the lower heater in the heater of a large heat generation amount than the heating value of the upper heater.

(作用) 本考案による排出ガス後処理装置の再生用ヒータは、その発熱部の発熱量がキャニング容器の下部の方が上部よりも大きいので、このキャニング容器内で自然対流が生じても、セラミックフィルタの全体を略均一に加熱する。 Reproducing heater exhaust gas aftertreatment device according to the present invention (effects), since the heating value of the heat generating portion is towards the bottom of the canning containers larger than the upper, even if natural convection in this canning container, ceramic substantially uniformly heat the whole of the filter.

(実施例) 本考案が実施される排出ガス後処理装置2は、たとえば第1図に示すように、従来装置と同様、排出ガス経路3 (Example) exhaust aftertreatment device 2 to which the present invention is carried out, for example, as shown in FIG. 1, as in the conventional apparatus, the exhaust gas passage 3
に配設されたキャニング容器4内に、電気ヒータ5と、 A canning container 4 disposed in an electric heater 5,
セラミックフィルタ6を直列に併設して構成されている。 It is configured and features a ceramic filter 6 in the series.

セラミックフィルタ6は、周知のように、排出ガス中に含まれるPctを捕集して排出ガスを浄化する。 Ceramic filter 6, as is known, for purifying exhaust gases by collecting Pct contained in the exhaust gas.

電気ヒータ5は、たとえば、第2図に示すように、その発熱部5aが、キャニング容器4の上部4Aと下部4Bに対応する上部ヒータ5Aと、下部ヒータ5Bとからなる2つに分割された発熱部で構成されている。 Electric heater 5 is, for example, as shown in FIG. 2, the heat generating portion 5a, and the upper heater 5A corresponding to the upper 4A and bottom 4B of canning container 4, is divided into two consisting of a lower heater 5B It is composed of a heating unit. また、この下部ヒータ5Bの発熱量W A (KW)は、上部ヒータ5Aを発熱量W B (KW)よりも大きくなるように予め設定されている。 Further, the heating value W A of the lower heater 5B (KW) is set in advance to be larger than the heating value W B of the upper heater 5A (KW). ここで、上部ヒータ5A、および下部ヒータ5Bの発熱量は、キャニング容器4の断面積や排出ガスの流量等に基づいて、セラミックフィルタ6の全面が略均等に加熱される値に、それぞれ予め実験的に決定される。 Here, the heating value of the upper heater 5A and the lower heater 5B, based on the flow rate, etc. of the cross-sectional area and exhaust emissions of canning container 4, to a value that the entire surface of the ceramic filter 6 is substantially uniformly heated, preliminarily experiments respectively to be determined.

上述のように構成された電気ヒータ5は、通電により加熱された際に発熱が、上部ヒータ5Aよりも下部ヒータ5B Electric heater 5 that is configured as described above, heat generation when heated by energization, the lower heater 5B than the upper heater 5A
の方が大きくなる。 It is becomes large. この結果、キャニング容器4内の自然対流により、キャニング容器4内の上部の温度が上昇されるも、セラミックフィルタ6の全面での温度が略均一となり、セラミックフィルタ6のPctがその上下部共に燃焼されセラミックフィルタ6の再生が良好に行なわれる。 As a result, by natural convection in the canning container 4, also the temperature of the top of canning container 4 is increased, the temperature of the entire surface of the ceramic filter 6 is substantially uniform, Pct ceramic filter 6 burning on the lower both its by regeneration of the ceramic filter 6 is performed satisfactorily.

(考案の効果) 本考案による排出ガス後処理装置の再生用電気ヒータは、セラミックフィルタの加熱再生を均一にでき、かつその再生インターバルを長くすることができるので、再生用電気ヒータの電力消費量の経減や、耐久性の向上を図ることができる。 Play electric heater (invented effects) exhaust aftertreatment device according to the present invention can heat regeneration of the ceramic filter uniform, and it is possible to increase the regeneration interval, power consumption of the reproduction electric heater through reduction or, it is possible to improve the durability.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

第1図は本考案の一実施例の概略平面図、第2図は上記実施例の要部断面図、第3図は従来の排出ガス後処理装置の概略図である。 Figure 1 is a schematic plan view of an embodiment of the present invention, Figure 2 is a fragmentary sectional view of the embodiment, FIG. 3 is a schematic view of a conventional exhaust aftertreatment device. 2……排出ガス後処理装置、3……排出ガス経路、4… 2 ...... exhaust gas aftertreatment device, 3 ...... exhaust gas passage, 4 ...
…キャニング容器、5……電気ヒータ、5A……上部ヒータ、5B……下部ヒータ、5a……発熱部、6……セラミックフィルタ、7……再生用エアポンプ、8……切換バルブ、9……バイパス経路。 ... canning container, 5 ...... electric heater, 5A ...... upper heater, 5B ...... lower heater, 5a ...... heating unit, 6 ...... ceramic filter, 7 ...... regeneration air pump, 8 ...... changeover valve, 9 ...... bypass route.

───────────────────────────────────────────────────── フロントページの続き (72)考案者 武田 信章 東京都港区芝5丁目33番8号 三菱自動車 工業株式会社内 (72)考案者 熊谷 保昭 東京都港区芝5丁目33番8号 三菱自動車 工業株式会社内 (72)考案者 須藤 晴男 神奈川県川崎市中原区宮内19番地の5 日 吉電装株式会社内 (56)参考文献 実開 昭59−167908(JP,U) 実公 平2−18276(JP,Y2) ────────────────────────────────────────────────── ─── of the front page continued (72) inventor of Nobuaki Takeda Shiba, Minato-ku, Tokyo 5-chome No. 33 No. 8 Mitsubishi Motors industrial Co., Ltd. in the (72) inventor of Kumagai Yasuaki Shiba, Minato-ku, Tokyo 5-chome 33 No. No. 8 Mitsubishi Motors industrial Co., Ltd. in the (72) inventor Haruo Sudo Kanagawa Prefecture, Nakahara-ku, Kawasaki, Miyauchi 19 address five days Gil electrical equipment within the Corporation of (56) references JitsuHiraku Akira 59-167908 (JP, U) real public flat 2 -18276 (JP, Y2)

Claims (1)

    【実用新案登録請求の範囲】 [Range of utility model registration request]
  1. 【請求項1】排出ガスの経路に配設されたキャニング容器内に、電気ヒータとセラミックフィルタを直列に併設してなる後処理装置において、上記電気ヒータの発熱部を上記キャニング容器の上部と下部に対応する上部ヒータと下部ヒータとからなる2つに分割された発熱部で構成するとともに、上記上部ヒータの発熱量よりも大きな発熱量のヒータで上記下部ヒータを形成してなる排出ガス後処理装置の再生用電気ヒータ。 To 1. A canning container disposed in the path of exhaust gas, in the post-processing device in which features an electric heater and a ceramic filter in series, the top and bottom of the canning container heating unit of the electric heater exhaust aftertreatment which together constitute at split heater section into two consisting of an upper heater and a lower heater corresponding, obtained by forming the lower heater in the heater of a large heat generation amount than the heating value of the upper heater Play for electric heater of the device.
JP12697787U 1987-08-21 1987-08-21 Play electric heat of the exhaust gas after-treatment device - data Active JPH0610127Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12697787U JPH0610127Y2 (en) 1987-08-21 1987-08-21 Play electric heat of the exhaust gas after-treatment device - data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12697787U JPH0610127Y2 (en) 1987-08-21 1987-08-21 Play electric heat of the exhaust gas after-treatment device - data

Publications (2)

Publication Number Publication Date
JPS6432411U JPS6432411U (en) 1989-03-01
JPH0610127Y2 true JPH0610127Y2 (en) 1994-03-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8906523B2 (en) 2008-08-11 2014-12-09 Infinite Power Solutions, Inc. Energy device with integral collector surface for electromagnetic energy harvesting and method thereof
US9334557B2 (en) 2007-12-21 2016-05-10 Sapurast Research Llc Method for sputter targets for electrolyte films
US9532453B2 (en) 2009-09-01 2016-12-27 Sapurast Research Llc Printed circuit board with integrated thin film battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9334557B2 (en) 2007-12-21 2016-05-10 Sapurast Research Llc Method for sputter targets for electrolyte films
US8906523B2 (en) 2008-08-11 2014-12-09 Infinite Power Solutions, Inc. Energy device with integral collector surface for electromagnetic energy harvesting and method thereof
US9532453B2 (en) 2009-09-01 2016-12-27 Sapurast Research Llc Printed circuit board with integrated thin film battery

Also Published As

Publication number Publication date
JPS6432411U (en) 1989-03-01

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