JPH0434425U - - Google Patents
Info
- Publication number
- JPH0434425U JPH0434425U JP7631390U JP7631390U JPH0434425U JP H0434425 U JPH0434425 U JP H0434425U JP 7631390 U JP7631390 U JP 7631390U JP 7631390 U JP7631390 U JP 7631390U JP H0434425 U JPH0434425 U JP H0434425U
- Authority
- JP
- Japan
- Prior art keywords
- gas purification
- exhaust gas
- purification device
- nox catalyst
- lean nox
- 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 9
- 238000000746 purification Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exhaust Gas After Treatment (AREA)
Description
第１図は本考案の一実施例としての排ガス浄化
装置の全体構成図、第２図は同上装置のウオーム
アツプ触媒の斜視図、第３図及び第４図は本考案
の各々異なる他の実施例としての排ガス浄化装置
の概略配置図、第５図ａ，ｂは各々異なる他の実
施例としての排ガス浄化装置で用いるウオームア
ツプ触媒の概略斜視図、第６図はリーンＮＯＸ触
媒の浄化率特性線図である。
１……エンジン、２……排気路、４，１０……
ウオームアツプ触媒、５，１１，１３……リーン
ＮＯＸ触媒、６，１２……三元触媒、８０１……
無担持領域、８０２……担持領域。
Fig. 1 is an overall configuration diagram of an exhaust gas purification device as an embodiment of the present invention, Fig. 2 is a perspective view of a warm-up catalyst of the same device, and Figs. 3 and 4 are different embodiments of the present invention. A schematic layout diagram of an exhaust gas purification device as an example, FIGS. 5a and 5b are schematic perspective views of warm-up catalysts used in exhaust gas purification devices as other different embodiments, and FIG. 6 is a purification rate characteristic of a lean NOx catalyst. It is a line diagram. 1...Engine, 2...Exhaust path, 4,10...
Warm-up catalyst, 5, 11, 13... Lean NOX catalyst, 6, 12... Three-way catalyst, 801...
Non-carrying area, 802...Carrying area.
Claims (1)
ＯＸを浄化するリーンＮＯＸ触媒と、上記リーン
ＮＯＸ触媒の上流に配設されると共に一体型担持
体を備えた三元触媒とが配備された排ガス浄化装
置において、上記一体型担持体の排気路断面方向
の一部に触媒活性成分を排除された無担持領域が
形成されたことを特徴とする排ガス浄化装置。 It is installed on the exhaust path and N during lean control.
In an exhaust gas purification device equipped with a lean NOX catalyst for purifying OX and a three-way catalyst disposed upstream of the lean NOX catalyst and provided with an integral carrier, the cross section of the exhaust path of the integral carrier is provided. An exhaust gas purification device characterized in that a non-supported region from which a catalytically active component is excluded is formed in a part of the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7631390U JPH0434425U (en) | 1990-07-18 | 1990-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7631390U JPH0434425U (en) | 1990-07-18 | 1990-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434425U true JPH0434425U (en) | 1992-03-23 |
Family
ID=31617669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7631390U Pending JPH0434425U (en) | 1990-07-18 | 1990-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019183703A (en) * | 2018-04-05 | 2019-10-24 | スズキ株式会社 | Exhaust emission control device |
-
1990
- 1990-07-18 JP JP7631390U patent/JPH0434425U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019183703A (en) * | 2018-04-05 | 2019-10-24 | スズキ株式会社 | Exhaust emission control device |
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