JPS6141937Y2 - - Google Patents
Info
- Publication number
- JPS6141937Y2 JPS6141937Y2 JP11235282U JP11235282U JPS6141937Y2 JP S6141937 Y2 JPS6141937 Y2 JP S6141937Y2 JP 11235282 U JP11235282 U JP 11235282U JP 11235282 U JP11235282 U JP 11235282U JP S6141937 Y2 JPS6141937 Y2 JP S6141937Y2
- Authority
- JP
- Japan
- Prior art keywords
- particulates
- exhaust gas
- inner cylinder
- inlet
- particulate
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 230000005855 radiation Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案はデーゼル機関などの機関の排気中に残
在するすす、灰分など可燃微粒子を除去するため
の機関の排気浄化用微粒子燃焼装置に関する。[Detailed Description of the Invention] The present invention relates to a particulate combustion device for purifying engine exhaust gas, which removes combustible particulates such as soot and ash remaining in the exhaust gas of an engine such as a diesel engine.
従来より排気管に、容器内に収納された微粒子
フイルター（パーテイクルフイルター）、二次空
気供給機構、着火装置、さらには燃料供給機構な
どからなる微粒子燃焼装置を取付けた排気浄化装
置が種々提案されているが、従来は微粒子フイル
ターの保温対策が十分施されておらず、堆積微粒
子の安定した燃焼が得られないため未焼却が生じ
易く、また焼却時容器が高温となり熱の輻射によ
り周囲に悪影響を及ぼす欠点があつた。 Conventionally, various exhaust purification devices have been proposed in which a particulate combustion device consisting of a particulate filter housed in a container, a secondary air supply mechanism, an ignition device, and even a fuel supply mechanism is attached to the exhaust pipe. However, in the past, sufficient heat insulation measures were not taken for particulate filters, making it impossible to achieve stable combustion of the accumulated particulates, resulting in unincinerated parts being likely to occur.In addition, the container becomes hot during incineration, causing heat radiation that adversely affects the surrounding area. There was a drawback that caused
本考案の目的は、微粒子フイルター３の保温性
が良く、これにより微粒子フイルター３内に堆積
したカーボンを安定して燃焼させることができ、
且つ焼却時に容器からの熱の輻射を低減できる機
関の排気浄化用微粒子燃焼装置の提供にある。 The purpose of the present invention is that the particulate filter 3 has good heat retention, so that the carbon deposited in the particulate filter 3 can be stably burned.
Another object of the present invention is to provide a particulate combustion device for purifying engine exhaust gas that can reduce heat radiation from a container during incineration.
つぎに本考案を図に示す一実施例に基づき説明
する。 Next, the present invention will be explained based on an embodiment shown in the drawings.
１はデーゼル機関の排気管、２は該排気管の中
途に挿入された本考案の微粒子燃焼装置である。
微粒子燃焼装置２は、セラミツク製ハニカム状微
粒子フイルター３と、フイルター容器４とからな
る。フイルター容器４は、前部に排気管１の機関
がわ部１Ａに接続される排気流入口４１Ａ後部に
排気管１のマフラーがわ部１Ｂに接続される排流
出口４１Ｂが設けられ、微粒子フイルター３を収
納した内筒４１と、該内筒外周を囲むよう同軸的
に取付けられた外筒４２とからなり、内筒４１の
外周と外筒４２の内周との間は環状のバイパス流
路４３となつている。５は排気管１の機関がわ部
１Ａと前記バイパス流路４３の前部とを連通する
分岐管、６はフイルター容器４の入口がわに設け
られ前記分子間の入り口５Ａと内筒４１の入り口
４１Ｃとの開閉を行う切換弁、７は前記内筒４１
の入り口がわに二次空気を提供するパイプ、８は
バイパス流路の出口と排気管とを連絡するため排
気管のマフラーがわ部１Ｂに形成された通気孔で
ある。 1 is an exhaust pipe of a diesel engine, and 2 is a particulate combustion device of the present invention inserted in the middle of the exhaust pipe.
The particulate combustion device 2 includes a ceramic honeycomb particulate filter 3 and a filter container 4. The filter container 4 is provided with an exhaust inlet 41B connected to the engine side part 1A of the exhaust pipe 1 at the front part, and an exhaust outlet 41B connected to the muffler side part 1B of the exhaust pipe 1 at the rear part. 3 and an outer cylinder 42 coaxially attached to surround the outer periphery of the inner cylinder. Between the outer periphery of the inner cylinder 41 and the inner periphery of the outer cylinder 42 is an annular bypass flow path. 43. Reference numeral 5 indicates a branch pipe that communicates the engine side portion 1A of the exhaust pipe 1 with the front portion of the bypass flow path 43, and 6 is provided at the entrance of the filter container 4 to connect the inlet 5A between the molecules and the inner cylinder 41. A switching valve 7 opens and closes the inlet 41C, and 7 is the inner cylinder 41.
8 is a vent hole formed in the muffler section 1B of the exhaust pipe to connect the outlet of the bypass flow path and the exhaust pipe.
この機関の排気浄化用微粒子燃焼装置は、排気
浄化時には排気弁６により分枝管５の入口を閉じ
ておくと、排気は内筒４１内を流れて微粒子フイ
ルター３によりカーボン、などの微粒子を集積し
て排気を浄化する。微粒子フイルターに多量の微
粒子が堆積した時点で切換弁６を作動させ、内筒
入口４１を閉じると共にパイプから２次空気を供
給して可燃堆積微粒子を燃焼する。このとき排気
はバイパス流路を流れ内筒を介して微粒子フイル
ター３を周囲から保温するため、可燃性微粒子焼
却時微粒子フイルターは周辺部においても、300
℃以上の温度に保たれ、フイルター内の堆積可燃
微粒子は安定した燃焼を持続し、可燃微粒子は完
全に焼却される。また可燃微粒子焼却が急速に進
んだ場合微粒子フイルターおよび内筒は1000℃以
上の高温になることもあるためそのままでは車体
の床または地上の可燃物などに熱輻射で悪影響を
与えるおそれがあるが、本考案の如くバイパス流
路４３内を比較的低温度の排気が流通していると
容器からの熱輻射量が低減できる。 In this engine exhaust purification particulate combustion device, when the inlet of the branch pipe 5 is closed by the exhaust valve 6 during exhaust purification, the exhaust flows through the inner cylinder 41 and collects particulates such as carbon by the particulate filter 3. to purify the exhaust gas. When a large amount of particulates are deposited on the particulate filter, the switching valve 6 is operated to close the inner cylinder inlet 41 and supply secondary air from the pipe to burn the combustible deposited particulates. At this time, the exhaust gas flows through the bypass flow path and insulates the particulate filter 3 from its surroundings through the inner cylinder.
The temperature is kept above ℃, and the combustible particulates accumulated in the filter continue to burn stably, and the combustible particulates are completely incinerated. In addition, if combustible particulate incineration progresses rapidly, the particulate filter and inner cylinder can reach high temperatures of over 1000°C, so if left as is, there is a risk of adverse effects of heat radiation on the floor of the vehicle body or combustible materials on the ground. When comparatively low temperature exhaust gas flows through the bypass passage 43 as in the present invention, the amount of heat radiation from the container can be reduced.
なお堆積微粒子の着火は燃料パイプ９からの燃
料を供給してイダナイター１０で点火し、該燃料
の燃焼熱により行つてもよく、またフイルターの
一部にヒーターを内蔵させて通電加熱によつて燃
焼を行つてもよい。 Incidentally, the accumulated particulates may be ignited by supplying fuel from the fuel pipe 9 and ignited by the idaniter 10, using the combustion heat of the fuel, or by incorporating a heater in a part of the filter and igniting it by heating with electricity. You may do so.
以上の如く本考案の機関の排気浄化用微粒子燃
焼装置は、容器内に微粒子フイルターを取付け排
気中の微粒子を集積すると共に、二次空気を供給
して前記フイルターに堆積した排気中の可燃微粒
子を焼却する機関の排気浄化用微粒子燃焼装置に
おいて、容器は微粒子フイルターが収納されると
共に入口がわに二次空気導入パイプが接続された
内筒と、該内筒の周囲を囲むよう配された外筒と
からなり、さらに該容器の入口部に、微粒子集積
時は外筒入口を塞ぎ、堆積微粒子焼却時は内筒入
口を塞ぐバイパス弁を設けているので、微粒子フ
イルターの保温性が良く、これにより微粒子フイ
ルター内に堆積したカーボンを安定して燃焼させ
ることのでき、且つ焼却時に容器からの熱の輻射
を低減できる。 As described above, the particulate combustion device for purifying engine exhaust gas of the present invention has a particulate filter installed in a container to collect particulates in the exhaust gas, and also supplies secondary air to remove combustible particulates in the exhaust gas that have accumulated on the filter. In a particulate combustion device for purifying the exhaust gas of an engine to be incinerated, the container has an inner cylinder in which a particulate filter is housed and a secondary air introduction pipe is connected to the inlet, and an outer cylinder arranged to surround the inner cylinder. A bypass valve is installed at the entrance of the container to close the entrance of the outer cylinder when fine particles are accumulated, and to close the entrance of the inner cylinder when the accumulated fine particles are incinerated. This makes it possible to stably burn the carbon deposited within the particulate filter, and reduce heat radiation from the container during incineration.
第１図は本考案の機関の排気浄化用微粒子燃焼
装置の断面図である。
図中、１……排気管、２……微粒子燃焼装置、
３……微粒子フイルター、４……フイルター容
器、４１……内筒、４２……外筒、４３……バイ
パス流路、５……分岐管、６……切換弁。
FIG. 1 is a sectional view of a particulate combustion device for purifying engine exhaust gas according to the present invention. In the figure, 1...exhaust pipe, 2...particulate combustion device,
3...Particle filter, 4...Filter container, 41...Inner cylinder, 42...Outer cylinder, 43...Bypass passage, 5...Branch pipe, 6...Switching valve.
Claims (1)
粒子を集積すると共に、二次空気を供給して前記
フイルターに堆積した排気中の可燃微粒子を焼却
する機関の排気浄化用微粒子燃焼装置において、 容器は微粒子フイルターが収納されると共に入
口がわに二次空気導入パイプが接続された内筒
と、該内筒の周囲を囲むよう配された外筒とから
なり、さらに該容器の入口部に、微粒子集積時は
外筒入口を塞ぎ、堆積微粒子焼却時は内筒入口を
塞ぐバイパス弁を設けたことを特徴とする機関の
排気浄化用微粒子燃焼装置。[Claims for Utility Model Registration] Particulates for purifying engine exhaust gas, in which a particulate filter is installed in a container to collect particulates in the exhaust gas, and secondary air is supplied to incinerate the combustible particulates in the exhaust gas deposited on the filter. In the combustion device, the container consists of an inner cylinder in which a particulate filter is housed and a secondary air introduction pipe is connected to the inlet thereof, and an outer cylinder arranged to surround the inner cylinder, and an outer cylinder arranged to surround the inner cylinder. 1. A particulate combustion device for purifying engine exhaust gas, characterized in that a bypass valve is provided at the inlet of the engine to close an inlet of an outer cylinder when accumulating particulates and to close an inlet of an inner cylinder when incinerating accumulated particulates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11235282U JPS5917214U (en) | 1982-07-24 | 1982-07-24 | Particulate combustion device for engine exhaust purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11235282U JPS5917214U (en) | 1982-07-24 | 1982-07-24 | Particulate combustion device for engine exhaust purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5917214U JPS5917214U (en) | 1984-02-02 |
| JPS6141937Y2 true JPS6141937Y2 (en) | 1986-11-28 |
Family
ID=30260486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11235282U Granted JPS5917214U (en) | 1982-07-24 | 1982-07-24 | Particulate combustion device for engine exhaust purification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5917214U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985316U (en) * | 1982-11-30 | 1984-06-09 | いすゞ自動車株式会社 | Pateikureate collection filter case |
| JP6342166B2 (en) * | 2014-01-24 | 2018-06-13 | 日野自動車株式会社 | Exhaust purification device |
-
1982
- 1982-07-24 JP JP11235282U patent/JPS5917214U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5917214U (en) | 1984-02-02 |
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