JPS55164740A - Method and apparatus for reducing nox contained in exhaust gas diesel engine - Google Patents
Method and apparatus for reducing nox contained in exhaust gas diesel engineInfo
- Publication number
- JPS55164740A JPS55164740A JP7220179A JP7220179A JPS55164740A JP S55164740 A JPS55164740 A JP S55164740A JP 7220179 A JP7220179 A JP 7220179A JP 7220179 A JP7220179 A JP 7220179A JP S55164740 A JPS55164740 A JP S55164740A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- egr
- engine
- injection
- diesel engine
- 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
Abstract
PURPOSE: To minimize production of smoke and to thereby reduce the amount of NOx contained in the exhaust gas of a diesel engine, through combined use of an EGR (exhaust gas recirculation) system and an injection-timing delaying system which are controlled by an electric control system.
CONSTITUTION: An EGR valve 5 is provided in EGR passage 4 which is extended between intake pipe 2 and exhaust pipe 3 of engine 1. Various sensors 6 for detecting the engine condition detect, for instance, the engine speed, load water temperature and negative pressure in the intake pipe and afford the output signals to controller 7, which in turn calculates the output signals and produces a signal. The output signal of controller 7 is used, on the one hand, to set actuator 8 into operation for starting timer 10 for injection pump 9 and on the other hand to set actuator 11 into operation for opening or closing the EGR valve 5. By thus combining the EGR system and injection-timing delaying system effectively, it is enabled to reduce the amount of NOx contained in the exhaust gas.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220179A JPS55164740A (en) | 1979-06-11 | 1979-06-11 | Method and apparatus for reducing nox contained in exhaust gas diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220179A JPS55164740A (en) | 1979-06-11 | 1979-06-11 | Method and apparatus for reducing nox contained in exhaust gas diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55164740A true JPS55164740A (en) | 1980-12-22 |
| JPS616255B2 JPS616255B2 (en) | 1986-02-25 |
Family
ID=13482374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7220179A Granted JPS55164740A (en) | 1979-06-11 | 1979-06-11 | Method and apparatus for reducing nox contained in exhaust gas diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164740A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193024U (en) * | 1982-06-20 | 1983-12-22 | 三菱自動車工業株式会社 | Diesel engine exhaust gas recirculation control device |
| JPH056136U (en) * | 1991-02-19 | 1993-01-29 | 三菱自動車工業株式会社 | Diesel engine |
| EP0924416B1 (en) * | 1997-12-15 | 2006-02-22 | Nissan Motor Company, Limited | Diesel engine |
-
1979
- 1979-06-11 JP JP7220179A patent/JPS55164740A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193024U (en) * | 1982-06-20 | 1983-12-22 | 三菱自動車工業株式会社 | Diesel engine exhaust gas recirculation control device |
| JPH056136U (en) * | 1991-02-19 | 1993-01-29 | 三菱自動車工業株式会社 | Diesel engine |
| EP0924416B1 (en) * | 1997-12-15 | 2006-02-22 | Nissan Motor Company, Limited | Diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616255B2 (en) | 1986-02-25 |
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