JPS5692333A - Air/fuel ratio control device for internal combustion engine - Google Patents
Air/fuel ratio control device for internal combustion engineInfo
- Publication number
- JPS5692333A JPS5692333A JP17371579A JP17371579A JPS5692333A JP S5692333 A JPS5692333 A JP S5692333A JP 17371579 A JP17371579 A JP 17371579A JP 17371579 A JP17371579 A JP 17371579A JP S5692333 A JPS5692333 A JP S5692333A
- Authority
- JP
- Japan
- Prior art keywords
- air
- reflux
- fuel ratio
- exhaust gas
- port
- 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
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To control an air/fuel ratio almost constantly over the entire operating of an engine by controlling in such manner that a mixed air/fuel gas ratio into a combustion chamber may be almost equal to an air/fuel ratio at time of exhaust gas reflux, when reflux out or reduction of an exhaust gas is controlled under an exhaust gas reflux system.
CONSTITUTION: A negative load of a port 39 is almost equal to an atmospheric pressure under a total load condition at time of the full opening of a throttle valve 38, so that a control valve 18 is closed and no reflux of an exhaust gas takes place. When this reflux is cut, a switch 47 is in "off" position following the closing of the valve body 22 of a reflux control valve 18 and an electromagnetic valve 46 inside an air induction passage 45 to an air bleed port 44c, one of main air bleeders 43, is opened. Then an air added from the port 44c is introduced into an air bleeder 43, so that a fuel supply from a main nozzle 41 is reduced by the quantity of an air taken into the port 44c. In addition, more of a sucked air than at time of reflux by a quantity corresponding to a refluxed exhaust gas volume is circulated through a venturi. Therefore, an air/fuel ratio is kept at a set air/fuel ratio.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17371579A JPS5692333A (en) | 1979-12-26 | 1979-12-26 | Air/fuel ratio control device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17371579A JPS5692333A (en) | 1979-12-26 | 1979-12-26 | Air/fuel ratio control device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692333A true JPS5692333A (en) | 1981-07-27 |
Family
ID=15965783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17371579A Pending JPS5692333A (en) | 1979-12-26 | 1979-12-26 | Air/fuel ratio control device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692333A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543623A (en) * | 1977-06-09 | 1979-01-11 | Fuji Heavy Ind Ltd | Running control equipment of internal combustion engine |
-
1979
- 1979-12-26 JP JP17371579A patent/JPS5692333A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543623A (en) * | 1977-06-09 | 1979-01-11 | Fuji Heavy Ind Ltd | Running control equipment of internal combustion engine |
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