JPS54158515A - Discharge gas purifying device for internal combution engine - Google Patents
Discharge gas purifying device for internal combution engineInfo
- Publication number
- JPS54158515A JPS54158515A JP6577678A JP6577678A JPS54158515A JP S54158515 A JPS54158515 A JP S54158515A JP 6577678 A JP6577678 A JP 6577678A JP 6577678 A JP6577678 A JP 6577678A JP S54158515 A JPS54158515 A JP S54158515A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- catalyst
- ternary
- catalysts
- air
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
PURPOSE: To establish an air-fuel ratio at an excessive density side in the case of a part of cylinders being on a standstill, to discharge sperately discharge gased from a stopping cylinder group and a working cylinder group so that they will be brough in a seperate contact with either one of two catalysts to deoxidize NOx, and afterward to oxidize by the use of a ternary catalyst.
CONSTITUTION: Discharge gases of from No. I to No. III and from No. IV to No. VI are seperately collected after passing through 6' and 6'' respectively. A discharge sensor 4 is mounted at a partition wall positioned at the middle of the discharge pipes 6' and 6''. The inside of a ternary catalyst 7 is also divided into two rooms where ternary catalysts 7' and 7'' are situated individually from each other, and a ternary catalyst 8 is placed following the catalysts 7' and 7''. For example, when No. I to No. III cylinders are on a standstill, what passes through the discharge pipe 6' is only air, and discharge gas passing through the discharge pipe 6'' becomes short of oxygen because an air-fuel mixture is set at an excessive density side, and the ternary catalyst 7'' acts as a deoxidizing catalyst. The ternary catalyst 8 can then act as an oxidizing catalyst.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6577678A JPS54158515A (en) | 1978-06-02 | 1978-06-02 | Discharge gas purifying device for internal combution engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6577678A JPS54158515A (en) | 1978-06-02 | 1978-06-02 | Discharge gas purifying device for internal combution engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54158515A true JPS54158515A (en) | 1979-12-14 |
JPS5712003B2 JPS5712003B2 (en) | 1982-03-08 |
Family
ID=13296765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6577678A Granted JPS54158515A (en) | 1978-06-02 | 1978-06-02 | Discharge gas purifying device for internal combution engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54158515A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4484440A (en) * | 1981-10-26 | 1984-11-27 | Nissan Motor Company, Limited | Exhaust manifold of dual type formed with chamber to receive exhaust gas sensor |
JP2013204514A (en) * | 2012-03-28 | 2013-10-07 | Honda Motor Co Ltd | Exhaust system of variable cylinder engine |
-
1978
- 1978-06-02 JP JP6577678A patent/JPS54158515A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4484440A (en) * | 1981-10-26 | 1984-11-27 | Nissan Motor Company, Limited | Exhaust manifold of dual type formed with chamber to receive exhaust gas sensor |
JP2013204514A (en) * | 2012-03-28 | 2013-10-07 | Honda Motor Co Ltd | Exhaust system of variable cylinder engine |
Also Published As
Publication number | Publication date |
---|---|
JPS5712003B2 (en) | 1982-03-08 |
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