JPH0634571Y2 - Particulate trap filter - Google Patents
Particulate trap filterInfo
- Publication number
- JPH0634571Y2 JPH0634571Y2 JP10538089U JP10538089U JPH0634571Y2 JP H0634571 Y2 JPH0634571 Y2 JP H0634571Y2 JP 10538089 U JP10538089 U JP 10538089U JP 10538089 U JP10538089 U JP 10538089U JP H0634571 Y2 JPH0634571 Y2 JP H0634571Y2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- central portion
- particulate trap
- trap filter
- exhaust passage
- 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
Links
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、エンジンの排気通路にフィルタを介装し、該
フィルタの上流側に再生装置を設けたパーティキュレイ
トトラップフィルタの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a particulate trap filter in which a filter is provided in an exhaust passage of an engine and a regenerator is provided on an upstream side of the filter.
［従来の技術］ 従来のパーティキューレイトトラップフィルタは一般的
に第５図に示すように、エンジン１のマフラ２に至る排
気通路３に、フィルタ９を介装し、そのフィルタ９の上
流側にバーナ４を設け、バーナ４の燃焼ガスでフィルタ
９に捕集したパーティキュレイトを再燃焼して再生する
ようになっている。[Prior Art] As shown in FIG. 5, a conventional party queue trap filter generally has an exhaust passage 3 leading to a muffler 2 of an engine 1 with a filter 9 interposed between the exhaust passage 3 and the upstream side of the filter 9. The burner 4 is provided, and the particulate matter collected by the filter 9 is reburned by the combustion gas of the burner 4 to be regenerated.
［考案が解決しようとする課題］ しかし、従来のフィルタ９においては再生時に、第４図
に分布曲線Ａで示すように中心部の温度上昇が大きい。
そのため、第６図に斜線部Ｃで示すように、中心部の出
口側が溶損し、また、外周部と中心部との中間部に亀裂
が発生する。[Problems to be Solved by the Invention] However, in the conventional filter 9, the temperature rise in the central portion is large during regeneration, as shown by the distribution curve A in FIG.
Therefore, as shown by the hatched portion C in FIG. 6, the outlet side of the central portion is melted and the intermediate portion between the outer peripheral portion and the central portion is cracked.
なお、本出願人による実開昭63-128219号公報には、ア
ルコール機関の触媒を備えた排気浄化装置において、触
媒の活性化を図る技術が示されている。In addition, Japanese Utility Model Laid-Open No. 63-128219 by the present applicant discloses a technique for activating a catalyst in an exhaust gas purification apparatus equipped with a catalyst for an alcohol engine.
本考案は、フィルタ内部の温度分布を改善してフィルタ
の亀裂や溶損を防止するパーティキュレイトトラップフ
ィルタを提供することを目的としている。An object of the present invention is to provide a particulate trap filter that improves the temperature distribution inside the filter and prevents cracks and melting damage of the filter.
［課題を解決するための手段］ 本考案によれば、エンジンの排気通路にフィルタを介装
し、該フィルタの上流側に再生装置を設けたパーティキ
ュレイトトラップフィルタにおいて、該再生装置を設け
た側の排気通路を前記フィルタの外周に画成した空室に
連通し、該空室をフィルタを前面に連通する通路を設け
ている。[Means for Solving the Problems] According to the present invention, in a particulate trap filter in which a filter is provided in an exhaust passage of an engine and a regenerating device is provided on the upstream side of the filter, the regenerating device is provided. The exhaust passage on the side is communicated with an empty chamber defined on the outer periphery of the filter, and a passage is provided which connects the empty chamber to the front surface of the filter.
上記通路は、フィルタ前面の中心部を除いた部分に連通
させるのが好ましい。The passage is preferably communicated with a portion of the front surface of the filter excluding the central portion.
また、排気通路の再生装置上流側にシャッタを介装し、
該シャッタの上流側をバイパス通路によりフィルタ前面
の中心部に連通し、フィルタ再生時にシャッタを閉じる
ように構成するのが好ましい。Also, a shutter is provided upstream of the regeneration device in the exhaust passage,
It is preferable that the upstream side of the shutter is connected to the central portion of the front surface of the filter by a bypass passage so that the shutter is closed when the filter is regenerated.
また、再生装置は、バーナで構成するのが好ましい。Further, it is preferable that the reproducing device is composed of a burner.
［作用］ 上記のように構成されたパーティキュレイトトラップフ
ィルタにおいては、バーナの加熱された燃焼ガスが空室
を通過する際、フィルタの外周部を加熱する。したがっ
て、外周部と中心部との温度差が小さくなる。[Operation] In the particulate trap filter configured as described above, when the heated combustion gas of the burner passes through the empty space, the outer peripheral portion of the filter is heated. Therefore, the temperature difference between the outer peripheral portion and the central portion is reduced.
また、パーティキュレイトは、フィルタの外周部に比較
的多く捕集され、中心部の捕集量が減る。Further, a relatively large amount of the particulate matter is collected on the outer peripheral portion of the filter, and the amount of the collected particulate matter at the central portion is reduced.
［実施例］ 以下図面を参照して本考案の実施例を説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図において、エンジン１のマフラ２に至る排気通路
３には、全体を符号10で示すパーティキュレイトトラッ
プフィルタが介装されている。In FIG. 1, an exhaust passage 3 leading to a muffler 2 of an engine 1 is provided with a particulate trap filter generally designated by 10.
第２図において、トラップフィルタ10のフィルタ11を緩
衝材11aを介して収めた内筒12の外周には、外筒13によ
り環状の空室14が画成されている。その空室14の一側方
には、排気通路３の折曲げ部3aが連結され、折曲げ部3a
には、再生装置であるバーナ４が設けられている。この
空室14の前側は、外筒13の前部にガスケット16、16と押
え板17とを介してボルト結合された中心部が閉じている
環状通路15によりフィルタ11の中心部を除いた前面に連
通されている。そして、フィルタ11の後面は、ガスケッ
ト16、16と中心部が閉じた押え板17aとを介して外筒13
にボルト結合されたリヤケース18に連通されている。In FIG. 2, an annular space 14 is defined by an outer cylinder 13 on the outer circumference of an inner cylinder 12 in which the filter 11 of the trap filter 10 is housed via a cushioning material 11a. The bent portion 3a of the exhaust passage 3 is connected to one side of the vacant chamber 14, and the bent portion 3a
Is provided with a burner 4 which is a reproducing device. The front side of the empty chamber 14 is a front surface excluding the central portion of the filter 11 by an annular passage 15 having a closed central portion which is bolted to the front portion of the outer cylinder 13 via gaskets 16 and 16 and a holding plate 17. Is in communication with. Then, the rear surface of the filter 11 is covered with the gaskets 16 and 16 and the holding plate 17a whose central portion is closed via the outer cylinder 13
It is communicated with a rear case 18 which is bolted to.
したがって、再生時にバーナで加熱された燃焼ガスは、
矢印で示すように空室14と環状通路15とを経て、フィル
タ11前面の中心部を除いた部分に流入し、フィルタ11の
外周部分から流出する。この際、燃焼ガスは、フィルタ
11の外周部を加熱するので、再生時の内部の温度分布は
第４図に分布曲線Ｂで示すようにフラットになり、外周
部と中心部の温度差が小さくなる。そのため、外周部と
中心部との中間部に亀裂が発生するのが防止される。Therefore, the combustion gas heated by the burner during regeneration is
As shown by the arrow, it flows into the portion of the front surface of the filter 11 excluding the central portion and flows out from the outer peripheral portion of the filter 11 via the vacant chamber 14 and the annular passage 15. At this time, the combustion gas is filtered by the filter.
Since the outer peripheral portion of 11 is heated, the internal temperature distribution during regeneration becomes flat as shown by the distribution curve B in FIG. 4, and the temperature difference between the outer peripheral portion and the central portion becomes small. Therefore, it is possible to prevent cracks from being generated in the intermediate portion between the outer peripheral portion and the central portion.
また、パーティキュレイトはフィルタ11の外周部に比較
的多く捕集され、中心部の捕集量は従来より減少し、し
たがって、中心部の温度上昇が抑えられ、溶損が防止さ
れる。Moreover, a relatively large amount of the particulate matter is collected on the outer peripheral portion of the filter 11, and the amount of the collected particulate matter in the central portion is smaller than in the conventional case. Therefore, the temperature rise in the central portion is suppressed and the melting loss is prevented.
第３図は本考案の別の実施例を示し、トラップフィルタ
10aのバーナ４の上流側にシャッタ５を設け、そのシャ
ッタ５の上流側をバイパス通路６と、中心部が開口した
環状通路15aとを介してフィルタ11の中心部に連通し、
他を第２図と同様に構成した例である。この実施例で
は、シャッタ５が鎖線で示す開位置5aにある通常時は、
排気ガスは矢印ａ及びｂで示すようにフィルタ11に流入
する。再生時はシャッタ５を図示のように閉じ、バーナ
４に点火する。すると、高温の加熱ガスは矢印ａのよう
にフィルタ11に流入して再生を行い、排気ガスは矢印ｂ
のようにフィルタ11の中心部に流入し、矢印ｃで示すよ
うに排出される。したがって、１個のトラップフィルタ
10aで、再生とパーティキュレイトの捕集とを同時に行
うことができる。FIG. 3 shows another embodiment of the present invention, which is a trap filter.
A shutter 5 is provided on the upstream side of the burner 4 of 10a, and the upstream side of the shutter 5 communicates with the central portion of the filter 11 via a bypass passage 6 and an annular passage 15a having an opened central portion.
This is an example in which the others are configured similarly to FIG. In this embodiment, normally, when the shutter 5 is at the open position 5a shown by the chain line,
The exhaust gas flows into the filter 11 as shown by arrows a and b. During reproduction, the shutter 5 is closed as shown, and the burner 4 is ignited. Then, the high-temperature heating gas flows into the filter 11 for regeneration as shown by an arrow a, and the exhaust gas has an arrow b.
As described above, it flows into the central portion of the filter 11 and is discharged as shown by an arrow c. Therefore, one trap filter
With 10a, you can play and collect particulates at the same time.
［考案の効果］ 本考案は、以上説明したように構成されているので、再
生時のフィルタ外周部と中心部の温度差を小さく、か
つ、中心部の温度を下げ、フィルタの亀裂や溶損を防止
することできる。[Advantages of the Invention] Since the present invention is configured as described above, the temperature difference between the outer peripheral portion and the central portion of the filter during regeneration is small, the temperature of the central portion is lowered, and cracks and melting damage of the filter are caused. Can be prevented.
第１図及び第２図は本考案の一実施例を示す上面図及び
水平断面図、第３図は本考案の別の実施例を示す水平断
面図、第４図はフィルタ内の温度分布を示す図、第５図
は従来のパーティキュレイトラップフィルタの説明図、
第６図はフィルタの溶損個所を示す図である。 ３……排気通路、10、10a……トラップフィルタ、４…
…バーナ、11……フィルタ、14……空室、15……環状通
路1 and 2 are a top view and a horizontal sectional view showing an embodiment of the present invention, FIG. 3 is a horizontal sectional view showing another embodiment of the present invention, and FIG. 4 is a temperature distribution in a filter. FIG. 5 and FIG. 5 are explanatory views of a conventional particulate trap filter,
FIG. 6 is a diagram showing a melted portion of the filter. 3 ... Exhaust passage, 10, 10a ... Trap filter, 4 ...
… Burner, 11 …… Filter, 14 …… Vacancy, 15 …… Annular passage
───────────────────────────────────────────────────── フロントページの続き (72)考案者 新村 恵一 埼玉県上尾市大字壱丁目１番地 日産ディ ーゼル工業株式会社内 (72)考案者 中村 秀一 埼玉県上尾市大字壱丁目１番地 日産ディ ーゼル工業株式会社内 (56)参考文献 特開 昭64−87813（ＪＰ，Ａ) 特開 昭60−13914（ＪＰ，Ａ) 特公 平４−4441（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Keiichi Niimura, 1-chome, Ichichome, Ageo-shi, Saitama, Nissan Diesel Industry Co., Ltd. (72) Shuichi Nakamura 1-chome, 1-chome, Ageo, Saitama Prefecture Incorporated (56) References JP 64-87813 (JP, A) JP 60-13914 (JP, A) JP-B 4-4441 (JP, B2)
Claims (1)
該フィルタの上流側に再生装置を設けたパーティキュレ
イトトラップフィルタにおいて、該再生装置を設けた側
の排気通路を前記フィルタの外周に画成した空室に連通
し、該空室をフィルタの前面に連通する通路を設けたこ
とを特徴とするパーティキュレイトトラップフィルタ。1. A filter is provided in an exhaust passage of an engine,
In a particulate trap filter having a regenerator provided on the upstream side of the filter, the exhaust passage on the side having the regenerator is communicated with a vacant chamber defined on the outer periphery of the filter, and the vacant chamber is provided in front of the filter. A particulate trap filter characterized by having a passage communicating with the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10538089U JPH0634571Y2 (en) | 1989-09-11 | 1989-09-11 | Particulate trap filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10538089U JPH0634571Y2 (en) | 1989-09-11 | 1989-09-11 | Particulate trap filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0345412U JPH0345412U (en) | 1991-04-26 |
| JPH0634571Y2 true JPH0634571Y2 (en) | 1994-09-07 |
Family
ID=31654144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10538089U Expired - Fee Related JPH0634571Y2 (en) | 1989-09-11 | 1989-09-11 | Particulate trap filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634571Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002052092A (en) * | 2000-06-01 | 2002-02-19 | Yasue Yanaka | Health promoting apparatus |
| KR101517512B1 (en) * | 2014-08-27 | 2015-05-04 | 정희석 | Abdomen exercising apparatus for driver |
-
1989
- 1989-09-11 JP JP10538089U patent/JPH0634571Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0345412U (en) | 1991-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |