JPH0212015U - - Google Patents
Info
- Publication number
- JPH0212015U JPH0212015U JP8845988U JP8845988U JPH0212015U JP H0212015 U JPH0212015 U JP H0212015U JP 8845988 U JP8845988 U JP 8845988U JP 8845988 U JP8845988 U JP 8845988U JP H0212015 U JPH0212015 U JP H0212015U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- switching valve
- purification device
- supported
- flow switching
- 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
- 239000010953 base metal Substances 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Description
図面は本考案に係る一実施例を示す部分断面図
である。
１……プリマフラ、２……貫通孔、３……排気
管、４……排気流切換弁、５……トラツプ、６…
…卑金属触媒部、７……貴金属触媒部、８……制
御回路、９……アクチユエータ。
The drawing is a partial cross-sectional view showing an embodiment of the present invention. 1... Prim muffler, 2... Through hole, 3... Exhaust pipe, 4... Exhaust flow switching valve, 5... Trap, 6...
... base metal catalyst section, 7 ... noble metal catalyst section, 8 ... control circuit, 9 ... actuator.
Claims (1)
中間部に設けられた排気流切換弁と、この排気流
切換弁の上流側に排気管を覆つて設けられた排気
成分の酸化を触媒する触媒を担持させたセラミツ
ク多孔体構造のトラツプと、を備え、所定の運転
条件で排気流切換弁を閉じて排気をトラツプに貫
流させるようにしたデイーゼル機関の排気浄化装
置において、前記トラツプの内周側に卑金属触媒
を担持させ、外周側に貴金属触媒を担持させた構
成としたことを特徴とするデイーゼル機関の排気
浄化装置。 An exhaust flow switching valve is provided in the middle of the through-hole exhaust pipe in the premuffler in the flow direction, and a catalyst that catalyzes the oxidation of exhaust components is provided upstream of the exhaust flow switching valve and covers the exhaust pipe. In an exhaust gas purification device for a diesel engine, the exhaust gas purification device is equipped with a trap having a supported ceramic porous structure, and the exhaust flow switching valve is closed under predetermined operating conditions to allow exhaust gas to flow through the trap. An exhaust purification device for a diesel engine characterized by having a structure in which a base metal catalyst is supported and a noble metal catalyst is supported on the outer circumference side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8845988U JPH0212015U (en) | 1988-07-05 | 1988-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8845988U JPH0212015U (en) | 1988-07-05 | 1988-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0212015U true JPH0212015U (en) | 1990-01-25 |
Family
ID=31313019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8845988U Pending JPH0212015U (en) | 1988-07-05 | 1988-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212015U (en) |
-
1988
- 1988-07-05 JP JP8845988U patent/JPH0212015U/ja active Pending