JPS6379449U - - Google Patents
Info
- Publication number
- JPS6379449U JPS6379449U JP17406586U JP17406586U JPS6379449U JP S6379449 U JPS6379449 U JP S6379449U JP 17406586 U JP17406586 U JP 17406586U JP 17406586 U JP17406586 U JP 17406586U JP S6379449 U JPS6379449 U JP S6379449U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- ratio sensor
- catalytic converter
- exhaust
- 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 14
- 230000003197 catalytic effect Effects 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims 4
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
Description
第１図から第３図は、夫々、本考案の第１、第
２、第３実施例を示し、第４図は従来の配置例を
示し、第５図および第６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、５４，６２，
６４……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。
1 to 3 respectively show the first, second and third embodiments of the present invention, FIG. 4 shows a conventional arrangement example, and FIGS. 5 and 6 show a V-type engine. A possible arrangement when applying the two-sensor method is shown. 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, 54, 62,
64...Second catalytic converter, 56, 60...Main air-fuel ratio sensor, 58...Auxiliary air-fuel ratio sensor.
Claims (1)
備え、夫々の排気系に少なくとも１つの第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１つの集合管に合流させ、前記合流
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
比を帰還制御するととも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 前記集合管には補助空燃比センサの上流にお
いて第２の触媒コンバータを設けてなる実用新案
登録請求の範囲第１項記載の排気浄化装置。 ３ 第１触媒コンバータの上流において他方の排
気系に他の主空燃比センサを設けてなる実用新案
登録請求の範囲第２項記載の排気浄化装置。 ４ 夫々の排気系には第１触媒コンバータの下流
において第２の触媒コンバータを設けてなる実用
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. A system comprising two cylinder banks and two exhaust systems, each exhaust system being provided with at least one first catalytic converter, and the combustion air-fuel mixture formed by the fuel supply device being In a V-type engine in which the fuel ratio can be feedback-controlled according to a signal from an air-fuel ratio sensor,
One main air-fuel ratio sensor is provided in either exhaust system upstream of the first catalytic converter, each exhaust system is merged into one collecting pipe, and one auxiliary air-fuel ratio sensor is provided in the joining pipe, An exhaust purification device for a V-type engine, characterized in that the air-fuel ratio of both cylinder banks is feedback-controlled in accordance with a signal from a main air-fuel ratio sensor, and the air-fuel ratio is corrected in accordance with a signal from an auxiliary air-fuel ratio sensor. 2. The exhaust gas purification device according to claim 1, wherein the collecting pipe is provided with a second catalytic converter upstream of the auxiliary air-fuel ratio sensor. 3. The exhaust gas purification device according to claim 2, wherein another main air-fuel ratio sensor is provided in the other exhaust system upstream of the first catalytic converter. 4. The exhaust gas purification device according to claim 1, wherein each exhaust system is provided with a second catalytic converter downstream of the first catalytic converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17406586U JPS6379449U (en) | 1986-11-14 | 1986-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17406586U JPS6379449U (en) | 1986-11-14 | 1986-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6379449U true JPS6379449U (en) | 1988-05-25 |
Family
ID=31112115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17406586U Pending JPS6379449U (en) | 1986-11-14 | 1986-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6379449U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02199247A (en) * | 1989-01-27 | 1990-08-07 | Mitsubishi Motors Corp | Air-fuel feedback control device for internal combustion engine |
| DE19503852C2 (en) * | 1994-02-09 | 2000-01-27 | Fuji Heavy Ind Ltd | Air-fuel ratio control device and method for controlling the air-fuel ratio of an engine |
| DE19549633C2 (en) * | 1994-02-09 | 2002-06-27 | Fuji Heavy Ind Ltd | Air=fuel ratio controller for catalyser engine vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872647A (en) * | 1981-10-26 | 1983-04-30 | Toyota Motor Corp | Air-fuel ratio controlling method for internal-combustion engine |
| JPS5974360A (en) * | 1982-10-19 | 1984-04-26 | Honda Motor Co Ltd | Air-fuel ratio controller for internal-combustion engine |
-
1986
- 1986-11-14 JP JP17406586U patent/JPS6379449U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872647A (en) * | 1981-10-26 | 1983-04-30 | Toyota Motor Corp | Air-fuel ratio controlling method for internal-combustion engine |
| JPS5974360A (en) * | 1982-10-19 | 1984-04-26 | Honda Motor Co Ltd | Air-fuel ratio controller for internal-combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02199247A (en) * | 1989-01-27 | 1990-08-07 | Mitsubishi Motors Corp | Air-fuel feedback control device for internal combustion engine |
| DE19503852C2 (en) * | 1994-02-09 | 2000-01-27 | Fuji Heavy Ind Ltd | Air-fuel ratio control device and method for controlling the air-fuel ratio of an engine |
| DE19549633C2 (en) * | 1994-02-09 | 2002-06-27 | Fuji Heavy Ind Ltd | Air=fuel ratio controller for catalyser engine vehicle |
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