JPS5460614A - Exhaust gas purifier for internal combustion engine - Google Patents
Exhaust gas purifier for internal combustion engineInfo
- Publication number
- JPS5460614A JPS5460614A JP12704377A JP12704377A JPS5460614A JP S5460614 A JPS5460614 A JP S5460614A JP 12704377 A JP12704377 A JP 12704377A JP 12704377 A JP12704377 A JP 12704377A JP S5460614 A JPS5460614 A JP S5460614A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust pipe
- catalyst
- catalyst bed
- oxidizing
- expanded part
- 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 heighten the purification effect, by mixing carbon monoxide, hydrocarbon and oxygen with one another in a first catalyst bed and oxidizing carbon monoxide and hydorocarbon in a second catalyst bed.
CONSTITUTION: An exhaust pipe 1 has an intermidiate expanded part 4 between tapered parts 2, 3. An inner cylinder 5 is supported by stays 6, 7 in the exhaust pipe 1 between the upstream end 1a of the exhaust pipe 1 and the expanded part 4, thereby defining a passage 15 between the inner cylinder 5 and an exhaust pipe 1. The first catalyst bed 8 consisting of a peripheral oxidizing catalyst 8a and a central reducing catalyst 8b and a second catalyst bed 9 made of an oxidizing catalyst are provided in the expanded part 4. A mixing portion 10 is formed between these catalyst beds. An annular chamber 11 is provided around the end 1a of the exhaust pipe and connected to the atmosphere through a check valve 14 to introduce secondary air into the passage 15. Numerous secondary air inlet ports 12 are perforated through the exhaust pipe 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12704377A JPS5460614A (en) | 1977-10-21 | 1977-10-21 | Exhaust gas purifier for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12704377A JPS5460614A (en) | 1977-10-21 | 1977-10-21 | Exhaust gas purifier for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5460614A true JPS5460614A (en) | 1979-05-16 |
JPS6128808B2 JPS6128808B2 (en) | 1986-07-02 |
Family
ID=14950198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12704377A Granted JPS5460614A (en) | 1977-10-21 | 1977-10-21 | Exhaust gas purifier for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5460614A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004101966A1 (en) * | 2003-05-16 | 2004-11-25 | Yamaha Hatsudoki Kabushiki Kaisha | Device for clarifying exhaust gas from engine |
-
1977
- 1977-10-21 JP JP12704377A patent/JPS5460614A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004101966A1 (en) * | 2003-05-16 | 2004-11-25 | Yamaha Hatsudoki Kabushiki Kaisha | Device for clarifying exhaust gas from engine |
Also Published As
Publication number | Publication date |
---|---|
JPS6128808B2 (en) | 1986-07-02 |
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