JPS55164760A - Control method and device for internal-combustion engine having exhaust recirculation valve - Google Patents
Control method and device for internal-combustion engine having exhaust recirculation valveInfo
- Publication number
- JPS55164760A JPS55164760A JP7219979A JP7219979A JPS55164760A JP S55164760 A JPS55164760 A JP S55164760A JP 7219979 A JP7219979 A JP 7219979A JP 7219979 A JP7219979 A JP 7219979A JP S55164760 A JPS55164760 A JP S55164760A
- Authority
- JP
- Japan
- Prior art keywords
- load
- exhaust
- reflux
- minimum
- maximum
- 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
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
PURPOSE: To effectively reduce NOx and smoke from an internal-combustion engine by refluxing exhaust at all load ranges except the minimum and maximum, keeping the reflux quantity below the smoke limits.
CONSTITUTION: A Diesel engine 4 is provided with a fuel injection pump 1, whose load is detected by a load detector 3, and a signal is input to a valve opening controller 6, which drives a valve operator 5 and determines an opening of a recirculation valve 2 provided in the exhaust reflux passage. When the engine load is minimum or maximum, no reflux is performed. When the load is larger than the minimum and less than the maximum, recirculation is performed, and the reflux quantity is adjusted in accordance with the load and compared with a generating amount of smoke stored in the controller 6 so that amount of exhaust less than the same is always allowed to recirculate.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7219979A JPS55164760A (en) | 1979-06-11 | 1979-06-11 | Control method and device for internal-combustion engine having exhaust recirculation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7219979A JPS55164760A (en) | 1979-06-11 | 1979-06-11 | Control method and device for internal-combustion engine having exhaust recirculation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55164760A true JPS55164760A (en) | 1980-12-22 |
Family
ID=13482314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7219979A Pending JPS55164760A (en) | 1979-06-11 | 1979-06-11 | Control method and device for internal-combustion engine having exhaust recirculation valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151342U (en) * | 1982-04-05 | 1983-10-11 | 株式会社日本自動車部品総合研究所 | EGR control device in diesel engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965417A (en) * | 1972-10-31 | 1974-06-25 | ||
| JPS5055715A (en) * | 1973-09-20 | 1975-05-16 |
-
1979
- 1979-06-11 JP JP7219979A patent/JPS55164760A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965417A (en) * | 1972-10-31 | 1974-06-25 | ||
| JPS5055715A (en) * | 1973-09-20 | 1975-05-16 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151342U (en) * | 1982-04-05 | 1983-10-11 | 株式会社日本自動車部品総合研究所 | EGR control device in diesel engine |
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