JPS61138817U - - Google Patents
Info
- Publication number
- JPS61138817U JPS61138817U JP2336785U JP2336785U JPS61138817U JP S61138817 U JPS61138817 U JP S61138817U JP 2336785 U JP2336785 U JP 2336785U JP 2336785 U JP2336785 U JP 2336785U JP S61138817 U JPS61138817 U JP S61138817U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- exhaust gas
- opening
- air
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
Landscapes
- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
第１図は、本考案に係る排気ガス浄化装置の１
例を示す概略図、第２図は、上記装置による触媒
溶液噴射制御作動を示すフローチヤート、第３図
は、上記装置での排気ガス量制御作動を示すフロ
ーチヤート、第４図は、触媒溶液の噴射回数に対
する噴射量を決定するための特性図である。
１…エンジン、３…渦流室、６…排気通路、７
ａ，７ｂ…パテイキユレートフイルタ、８…噴射
器、９…触媒タンク、１０…噴射ノズル、１３…
排気バイパス通路、２８…三方向弁、２６ａ，２
６ｂ…バタフライ弁。
Figure 1 shows one of the exhaust gas purification devices according to the present invention.
A schematic diagram showing an example, FIG. 2 is a flow chart showing the catalyst solution injection control operation by the above device, FIG. 3 is a flow chart showing the exhaust gas amount control operation by the above device, and FIG. 4 is a flow chart showing the catalyst solution injection control operation by the above device. FIG. 3 is a characteristic diagram for determining the injection amount with respect to the number of injections. 1...engine, 3...vortex chamber, 6...exhaust passage, 7
a, 7b...particulate filter, 8...injector, 9...catalyst tank, 10...injection nozzle, 13...
Exhaust bypass passage, 28... Three-way valve, 26a, 2
6b...Butterfly valve.
Claims (1)
レートフイルタを並列に２個配してなるエンジン
の排気ガス浄化装置において、 前記２個のパテイキユレートフイルタの少なく
ともいずれか一方の上流側に設けられて捕集した
可燃性粒子の燃焼を促進させる触媒を噴射供給す
る噴射器と、該パテイキユレートフイルタのそれ
ぞれの下流側通路に設けられて該通路を開閉し前
記２個のパテイキユレートフイルタのいずれか一
方に排気を選択的に流す開閉手段と、該開閉手段
と前記パテイキユレートフイルタの間にエアーを
送り込むエアー送出手段とを有し、 前記開閉手段の一方を開放し他方を閉止するこ
とにより前記パテイキユレートフイルタの一方に
のみ排気を通し、該パテイキユレートフイルタに
より捕集した可燃性粒子の量が所定量を越えた時
に、他方のフイルタと該他方のフイルタ下流の閉
止されている前記開閉手段との間に前記エアー送
出手段によりエアーを送り込み、該他方のフイル
タに付着している前記噴射器から噴射供給された
触媒を該エアーにより逆流させて前記一方のフイ
ルタに供給し、該一方のフイルタの可燃性粒子の
燃焼を促進させるようにしたことを特徴とするエ
ンジンの排気ガス浄化装置。[Claims for Utility Model Registration] In an engine exhaust gas purification device comprising two particulate filters arranged in parallel in the exhaust system for collecting combustible particles, at least one of the two particulate filters An injector is provided on the upstream side of one of the particulate filters for injecting a catalyst to promote combustion of the collected combustible particles, and an injector is provided on each downstream passage of the particulate filter for opening and closing the passage. It has an opening/closing means for selectively allowing exhaust gas to flow into either one of the two particulate filters, and an air delivery means for sending air between the opening/closing means and the particulate filter; By opening one side and closing the other, exhaust gas is passed through only one of the particulate filters, and when the amount of combustible particles collected by the particulate filter exceeds a predetermined amount, the other filter is opened and the other part is closed. Air is sent by the air sending means between the closed opening/closing means downstream of the other filter, and the catalyst injected and supplied from the injector attached to the other filter is caused to flow backward by the air. An exhaust gas purification device for an engine, characterized in that the exhaust gas is supplied to the one filter to promote combustion of combustible particles in the one filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336785U JPS61138817U (en) | 1985-02-20 | 1985-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336785U JPS61138817U (en) | 1985-02-20 | 1985-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138817U true JPS61138817U (en) | 1986-08-28 |
Family
ID=30516538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2336785U Pending JPS61138817U (en) | 1985-02-20 | 1985-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138817U (en) |
-
1985
- 1985-02-20 JP JP2336785U patent/JPS61138817U/ja active Pending
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