JPS63115556U - - Google Patents
Info
- Publication number
- JPS63115556U JPS63115556U JP603987U JP603987U JPS63115556U JP S63115556 U JPS63115556 U JP S63115556U JP 603987 U JP603987 U JP 603987U JP 603987 U JP603987 U JP 603987U JP S63115556 U JPS63115556 U JP S63115556U
- Authority
- JP
- Japan
- Prior art keywords
- catalytic converter
- oxygen concentration
- exhaust passage
- concentration sensor
- disposed
- 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
- 230000003197 catalytic effect Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 5
- 229910052760 oxygen Inorganic materials 0.000 claims 5
- 239000001301 oxygen Substances 0.000 claims 5
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 239000000446 fuel Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は内燃機関の全体図、第２図は第１Ｏ２
センサの出力信号に基くフイードバツク制御を実
行するためのフローチヤート、第３図は第３Ｏ２
センサの出力信号に基くフイードバツク制御を実
行するためのフローチヤート、第４図はＯ２セン
サの出力電圧とＦＡＦ等の変化を示すタイムチヤ
ートである。
２，３……バンク、１３，１４……排気マニホ
ルド、１５，１６……排気管、１７，１８……第
１触媒コンバータ、１９……第１Ｏ２センサ、２
０……第２Ｏ２センサ、２１……第３Ｏ２センサ
、２２……第２触媒コンバータ。
Figure 1 is an overall view of the internal combustion engine, Figure 2 is the 1st O 2
A flowchart for executing feedback control based on the output signal of the sensor, FIG.
A flowchart for executing feedback control based on the output signal of the sensor, and FIG. 4 is a time chart showing changes in the output voltage of the O2 sensor, FAF, etc. 2, 3... Bank, 13, 14... Exhaust manifold, 15, 16... Exhaust pipe, 17, 18... First catalytic converter, 19... First O 2 sensor, 2
0... Second O 2 sensor, 21... Third O 2 sensor, 22... Second catalytic converter.
Claims (1)
立した別個の排気通路を具備するＶ型エンジンに
おいて、各排気通路内に夫々第１の触媒コンバー
タを設け、第１触媒コンバータ上流の一方の排気
通路内に第１の酸素濃度センサを配置すると共に
第１触媒コンバータ上流の他方の排気通路内に第
２の酸素濃度センサを配置し、更に第１触媒コン
バータ下流の一方の排気通路内に第３の酸素濃度
センサを配置すると共に第３酸素濃度センサの下
流において上記一対の排気通路を共通の第２の触
媒コンバータに連結し、これら３個の酸素濃度セ
ンサの出力信号に基いて空燃比を制御するように
したＶ型エンジンの排気浄化装置。 In a V-type engine having a pair of banks and each bank having an independent and separate exhaust passage, a first catalytic converter is provided in each exhaust passage, and a first catalytic converter is provided in one exhaust passage upstream of the first catalytic converter. A first oxygen concentration sensor is disposed, a second oxygen concentration sensor is disposed in the other exhaust passage upstream of the first catalytic converter, and a third oxygen concentration sensor is further disposed in one exhaust passage downstream of the first catalytic converter. The sensors are arranged, and the pair of exhaust passages are connected to a common second catalytic converter downstream of the third oxygen concentration sensor, and the air-fuel ratio is controlled based on the output signals of these three oxygen concentration sensors. Exhaust purification device for V-type engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603987U JPS63115556U (en) | 1987-01-21 | 1987-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603987U JPS63115556U (en) | 1987-01-21 | 1987-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63115556U true JPS63115556U (en) | 1988-07-26 |
Family
ID=30788180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP603987U Pending JPS63115556U (en) | 1987-01-21 | 1987-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63115556U (en) |
-
1987
- 1987-01-21 JP JP603987U patent/JPS63115556U/ja active Pending