JPS5543250A - Air-fuel ratio controller of internal combustion engine - Google Patents
Air-fuel ratio controller of internal combustion engineInfo
- Publication number
- JPS5543250A JPS5543250A JP11620578A JP11620578A JPS5543250A JP S5543250 A JPS5543250 A JP S5543250A JP 11620578 A JP11620578 A JP 11620578A JP 11620578 A JP11620578 A JP 11620578A JP S5543250 A JPS5543250 A JP S5543250A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- internal combustion
- combustion engine
- low load
- speed
- 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
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To provide a rapid response of O2 sensor by dividing at least one side of exhaust pipe and intake pipe into two flow-ways permitting one flow way to close under low load and low speed period to increase the flow speed for the air fuel ratio controller of an internal combustion engine provided with a ternary catalyzer within an exhaust system.
CONSTITUTION: Division walls 14 and 18 are provided respectively for the upper stream of a sensor 13 disposed within intake pipe 7 and exhaust pipe 11 of the internal combustion engine 1, respective pipe being divided respectively into two flow-ways in a longitudinal direction, and for one of those flow-ways 7a, 11a, valve units 19 and 20 being provided to close under low load and low speed period of an engine. In operating low load and low speed, the large intake negative pressure is applied to a valve box 21, one side of flow-way being closed by a valve unit to increase the flow speed of other flow-way. Consequently, the response delay of O2 sensor 13 caused by decreasing speed in low load and low speed period is improved, enabling the air fuel ratioto correct rapidly with control circuit unit 14 and controllable magnetic valve 16.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11620578A JPS5543250A (en) | 1978-09-21 | 1978-09-21 | Air-fuel ratio controller of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11620578A JPS5543250A (en) | 1978-09-21 | 1978-09-21 | Air-fuel ratio controller of internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5543250A true JPS5543250A (en) | 1980-03-27 |
JPS6145054B2 JPS6145054B2 (en) | 1986-10-06 |
Family
ID=14681434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11620578A Granted JPS5543250A (en) | 1978-09-21 | 1978-09-21 | Air-fuel ratio controller of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5543250A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932115U (en) * | 1982-08-25 | 1984-02-28 | ヤンマーディーゼル株式会社 | Equipment for exhaust gas aftertreatment of internal combustion engines |
JPS59224437A (en) * | 1983-06-03 | 1984-12-17 | Mazda Motor Corp | Control device of air-fuel ratio in engine |
JPS6050214A (en) * | 1983-08-31 | 1985-03-19 | Mazda Motor Corp | Exhauster for engine |
-
1978
- 1978-09-21 JP JP11620578A patent/JPS5543250A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932115U (en) * | 1982-08-25 | 1984-02-28 | ヤンマーディーゼル株式会社 | Equipment for exhaust gas aftertreatment of internal combustion engines |
JPS59224437A (en) * | 1983-06-03 | 1984-12-17 | Mazda Motor Corp | Control device of air-fuel ratio in engine |
JPS6050214A (en) * | 1983-08-31 | 1985-03-19 | Mazda Motor Corp | Exhauster for engine |
JPH0467011B2 (en) * | 1983-08-31 | 1992-10-27 | Mazda Motor |
Also Published As
Publication number | Publication date |
---|---|
JPS6145054B2 (en) | 1986-10-06 |
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