JPS6379448U - - Google Patents
Info
- Publication number
- JPS6379448U JPS6379448U JP17406486U JP17406486U JPS6379448U JP S6379448 U JPS6379448 U JP S6379448U JP 17406486 U JP17406486 U JP 17406486U JP 17406486 U JP17406486 U JP 17406486U JP S6379448 U JPS6379448 U JP S6379448U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- catalytic converter
- air
- exhaust
- exhaust system
- 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
- 239000000446 fuel Substances 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000000746 purification Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
Landscapes
- Exhaust Silencers (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の第１実施例の模式的平面図、
第２図は第２実施例の一部切り欠き模式的正面図
、第３図は従来の配置例を示し、第４図および第
５図はＶ型エンジンに２センサ方式を適用する場
合に考えられる配置を示す。
２０……Ｖ型エンジン、２２，２４……シリン
ダバンク、３２……吸気マニホールド、３４……
インジエクタ、３６……制御回路、４０，４２…
…排気系、４４，４６……排気マニホールド、４
８，５０……第１触媒コンバータ、５２……集合
管、５４……第２触媒コンバータ、５６，６０…
…主空燃比センサ、５８……補助空燃比センサ。
FIG. 1 is a schematic plan view of the first embodiment of the present invention;
Fig. 2 is a partially cutaway schematic front view of the second embodiment, Fig. 3 shows an example of the conventional arrangement, and Figs. This shows the arrangement that will be used. 20... V-type engine, 22, 24... Cylinder bank, 32... Intake manifold, 34...
Injector, 36... Control circuit, 40, 42...
...Exhaust system, 44, 46...Exhaust manifold, 4
8, 50...first catalytic converter, 52...collecting pipe, 54...second catalytic converter, 56,60...
...Main air-fuel ratio sensor, 58...Auxiliary air-fuel ratio sensor.
Claims (1)
備え、夫々の排気系に第１の触媒コンバータを設
け、燃料供給装置で形成される燃焼用混合気の空
燃比を空燃比センサからの信号に応じて帰還制御
可能なＶ型エンジンにおいて、前記第１触媒コン
バータの上流においていずれか一方の排気系に１
つの主空燃比センサを設け、夫々の排気系を第１
触媒コンバータの下流で１つの集合管に合流させ
、前記集合管に第２の触媒コンバータを設け、第
２触媒コンバータの上流において前記集合管に１
つの補助空燃比センサを設け、主空燃比センサか
らの信号に応じて両シリンダバンクの空燃比を制
御すると共に補助空燃比センサからの信号に応じ
て空燃比を補正することを特徴とするＶ型エンジ
ンの排気浄化装置。 ２ 第１触媒コンバータの上流において他方の排
気系に他の空燃比センサを設けたことを特徴とす
る実用新案登録請求の範囲第１項記載の排気浄化
装置。[Claims for Utility Model Registration] 1. Equipped with two cylinder banks and two exhaust systems, each exhaust system is provided with a first catalytic converter, and the air-fuel ratio of the combustion mixture formed in the fuel supply device is adjusted to In a V-type engine capable of feedback control according to a signal from a fuel ratio sensor, one exhaust system is connected to one of the exhaust systems upstream of the first catalytic converter.
Two main air-fuel ratio sensors are provided, and each exhaust system is connected to the
downstream of the catalytic converter, a second catalytic converter is provided in the collecting pipe, and a second catalytic converter is provided in the collecting pipe upstream of the second catalytic converter;
The V-type is characterized by having two auxiliary air-fuel ratio sensors, controlling the air-fuel ratio of both cylinder banks according to the signal from the main air-fuel ratio sensor, and correcting the air-fuel ratio according to the signal from the auxiliary air-fuel ratio sensor. Engine exhaust purification device. 2. The exhaust gas purification device according to claim 1, wherein another air-fuel ratio sensor is provided in the other exhaust system upstream of the first catalytic converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17406486U JPS6379448U (en) | 1986-11-14 | 1986-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17406486U JPS6379448U (en) | 1986-11-14 | 1986-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6379448U true JPS6379448U (en) | 1988-05-25 |
Family
ID=31112113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17406486U Pending JPS6379448U (en) | 1986-11-14 | 1986-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6379448U (en) |
-
1986
- 1986-11-14 JP JP17406486U patent/JPS6379448U/ja active Pending