JPH0387910U - - Google Patents
Info
- Publication number
- JPH0387910U JPH0387910U JP14939089U JP14939089U JPH0387910U JP H0387910 U JPH0387910 U JP H0387910U JP 14939089 U JP14939089 U JP 14939089U JP 14939089 U JP14939089 U JP 14939089U JP H0387910 U JPH0387910 U JP H0387910U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- oxygen concentration
- particulate filter
- bypass passage
- 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.)
- Pending
Links
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 8
- 239000007789 gas Substances 0.000 claims 4
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Description
第１図は本考案によるデイーゼル排気浄化装置
の概略的構成図；第２図は第１図に示したデイー
ゼル排気浄化装置の作動を示す制御フローチヤー
ト図。
１……パテイキユレートフイルタ、３……排気
通路、５……排気バイパス通路、６……酸化触媒
、８……排気バイパス弁、１２……制御回路（Ｅ
ＣＵ）、１３……負圧切換弁、１４……酸素濃度
センサ。
FIG. 1 is a schematic configuration diagram of a diesel exhaust purification device according to the present invention; FIG. 2 is a control flowchart showing the operation of the diesel exhaust purification device shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Particulate filter, 3... Exhaust passage, 5... Exhaust bypass passage, 6... Oxidation catalyst, 8... Exhaust bypass valve, 12... Control circuit (E
CU), 13...Negative pressure switching valve, 14...Oxygen concentration sensor.
Claims (1)
の排気微粒子を捕集するパテイキユレートフイル
タと、該パテイキユレートフイルタより排気上流
側において排気通路を迂回する排気バイパス通路
と、該排気バイパス通路内に設けられ排気バイパ
ス通路内を流動する排気ガス中の酸素濃度を低減
せしめる酸素低減手段と、上記パテイキユレート
フイルタより排気上流側に設けられパテイキユレ
ートフイルタに導入される排気ガス中の酸素濃度
を検出する酸素濃度を検出する酸素濃度センサと
、上記パテイキユレートフイルタの再生時、上記
酸素濃度センサによつて検出された酸素濃度が所
定値より大きい時、排気ガスを上記排気バイパス
通路に導入せしめ、上記酸素低減手段によつて排
気ガス中の酸素濃度を減ずる制御手段とを備えた
ことを特徴とするデイーゼル排気浄化装置。 A particulate filter that is installed in the exhaust system of a diesel engine and collects exhaust particulates in the exhaust gas, an exhaust bypass passage that bypasses the exhaust passage on the exhaust upstream side of the particulate filter, and an exhaust bypass passage that bypasses the exhaust passage on the exhaust upstream side of the particulate filter. an oxygen reducing means for reducing oxygen concentration in the exhaust gas flowing in the exhaust bypass passage; an oxygen concentration sensor for detecting oxygen concentration; and when the particulate filter is regenerated, when the oxygen concentration detected by the oxygen concentration sensor is greater than a predetermined value, exhaust gas is introduced into the exhaust bypass passage. A diesel exhaust purification device comprising: a control means for reducing the oxygen concentration in the exhaust gas by the oxygen reduction means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14939089U JPH0387910U (en) | 1989-12-27 | 1989-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14939089U JPH0387910U (en) | 1989-12-27 | 1989-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0387910U true JPH0387910U (en) | 1991-09-09 |
Family
ID=31695789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14939089U Pending JPH0387910U (en) | 1989-12-27 | 1989-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0387910U (en) |
-
1989
- 1989-12-27 JP JP14939089U patent/JPH0387910U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0387910U (en) | ||
| JP5233596B2 (en) | Exhaust gas purification device | |
| JPH0475124U (en) | ||
| JPH0476923U (en) | ||
| JPH0317113U (en) | ||
| JPH0115855Y2 (en) | ||
| JPH053694Y2 (en) | ||
| JPH0325810U (en) | ||
| JPH02105511U (en) | ||
| JPH0325809U (en) | ||
| JPH01124022U (en) | ||
| JPH0511294Y2 (en) | ||
| JPH01124021U (en) | ||
| JPH0267020U (en) | ||
| JPS58146024U (en) | Diesel engine exhaust purification device | |
| JPS61147318U (en) | ||
| JPH01111122U (en) | ||
| JPS59148413U (en) | Internal combustion engine exhaust gas purification device | |
| JPS6241813U (en) | ||
| JPS6127913U (en) | Diesel engine exhaust system | |
| JPH0191019U (en) | ||
| JPS626416U (en) | ||
| JPS58139512U (en) | Diesel engine exhaust particulate purification device | |
| JPS63200610U (en) | ||
| JPH0354231U (en) |