JPS5479321A - Device of purifying exhaust gas of internal combustion engine - Google Patents
Device of purifying exhaust gas of internal combustion engineInfo
- Publication number
- JPS5479321A JPS5479321A JP14945877A JP14945877A JPS5479321A JP S5479321 A JPS5479321 A JP S5479321A JP 14945877 A JP14945877 A JP 14945877A JP 14945877 A JP14945877 A JP 14945877A JP S5479321 A JPS5479321 A JP S5479321A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- exhaust
- gas
- gas passing
- catalyst bed
- 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.)
- Granted
Links
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
PURPOSE: To efficiently purify exhaust gas, by sufficiently reaction treating exhasut gas by dividing a catalyst bed into oxidation and reduction reaction portions at an outer circumference and a center, by mixing reacted gas passing through both reaction portions and by further making reacted gas react.
CONSTITUTION: Exhaust gas flowing through an exhaust pipe 1 is divided into gas passing through a passage 15 between the exhaust pipe 1 and an inner pipe 5 and gas passing through the inner pipe 5 before entering a catalyst convertor 3 secondary air sucked from an introudcing port 12 through a check valve 14 by an exhaust pulsating effect is mixed into exhaust gas passing through the passage 15, and the mixed gas flows into an outer circumferential oxidation reaction portion 8a of a catalyst bed 8, thus oxidizing HC, CO. Meanwhile, exhaust gas passing through the inside of the inner pipe 5 flows into a central reduction reaction portion 8b, and NOx is reduced by HC, CO at the portion 8b. Consequently, the outer circumference portion is under an oxidation atmosphere and the center portion under a reduction atmosphere in the catalyst bed 8, thus reducing all three components in exhaust gas.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14945877A JPS5479321A (en) | 1977-12-05 | 1977-12-05 | Device of purifying exhaust gas of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14945877A JPS5479321A (en) | 1977-12-05 | 1977-12-05 | Device of purifying exhaust gas of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5479321A true JPS5479321A (en) | 1979-06-25 |
| JPS6130129B2 JPS6130129B2 (en) | 1986-07-11 |
Family
ID=15475551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14945877A Granted JPS5479321A (en) | 1977-12-05 | 1977-12-05 | Device of purifying exhaust gas of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5479321A (en) |
-
1977
- 1977-12-05 JP JP14945877A patent/JPS5479321A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6130129B2 (en) | 1986-07-11 |
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