JPS6162268U - - Google Patents
Info
- Publication number
- JPS6162268U JPS6162268U JP14664484U JP14664484U JPS6162268U JP S6162268 U JPS6162268 U JP S6162268U JP 14664484 U JP14664484 U JP 14664484U JP 14664484 U JP14664484 U JP 14664484U JP S6162268 U JPS6162268 U JP S6162268U
- Authority
- JP
- Japan
- Prior art keywords
- air
- engine
- fuel ratio
- fuel
- rotation 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 13
- 241000234435 Lilium Species 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
第１図は本考案の実施例を示す構成図、第２図
は第１図の装置中の制御回路の具体的構成を示す
ブロツク図である。
主要部分の符号の説明、２…エアクリーナ、３
…気化器、５…絞り弁、６…ベンチユリ、８…メ
インノズル、１０…メイン燃料通路、１…メイン
ジエツト、１２…補助燃料通路、１３…補助燃料
制御弁、１４…吸気マニホールド、１５…負圧供
給通路、１７，３１…大気圧供給通路、１９，２
５…電磁弁、２２，２３…吸気２次空気供給通路
、２４…空気制御弁、３３…開閉弁、３９…酸素
濃度センサ、４０，４１…負圧スイツチ、６０…
三元触媒。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a specific structure of a control circuit in the apparatus shown in FIG. Explanation of symbols of main parts, 2... Air cleaner, 3
... Carburetor, 5... Throttle valve, 6... Bench lily, 8... Main nozzle, 10... Main fuel passage, 1... Main jet, 12... Auxiliary fuel passage, 13... Auxiliary fuel control valve, 14... Intake manifold, 15... Negative pressure Supply passage, 17, 31... Atmospheric pressure supply passage, 19, 2
5... Solenoid valve, 22, 23... Intake secondary air supply passage, 24... Air control valve, 33... Open/close valve, 39... Oxygen concentration sensor, 40, 41... Negative pressure switch, 60...
Three-way catalyst.
Claims (1)
ク弁を吸気系に備えた内燃エンジンにおける排気
成分濃度を検出し該検出結果に基づいて供給混合
気の空燃比をフイードバツク制御し、該フイード
バツク制御停止時には空燃比をリツチ化する空燃
比制御装置であつて、気化器ベンチユリ部に開口
する燃料ノズルを介してエンジンへ補助燃料を供
給するための補助燃料供給手段を含み、前記チヨ
ーク弁が閉弁作動するエンジン低温時に前記空燃
比フイードバツク制御を停止すると共にエンジン
回転数を検出し、該検出回転数が所定回転数以下
のときにのみ前記補助燃料供給手段を作動せしめ
ることを特徴とする空燃比制御装置。 In an internal combustion engine equipped with a choke valve in the intake system that changes its opening as the engine warms up, the concentration of exhaust components is detected, the air-fuel ratio of the supplied air-fuel mixture is feedback-controlled based on the detection results, and the feedback control is stopped. The air-fuel ratio control device sometimes enriches the air-fuel ratio, and includes an auxiliary fuel supply means for supplying auxiliary fuel to the engine through a fuel nozzle that opens in the carburetor bench lily, and the intake valve is closed. The air-fuel ratio control device is characterized in that the air-fuel ratio feedback control is stopped when the engine is at a low temperature, the engine rotation speed is detected, and the auxiliary fuel supply means is operated only when the detected engine rotation speed is below a predetermined rotation speed. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14664484U JPS6162268U (en) | 1984-09-28 | 1984-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14664484U JPS6162268U (en) | 1984-09-28 | 1984-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6162268U true JPS6162268U (en) | 1986-04-26 |
Family
ID=30704877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14664484U Pending JPS6162268U (en) | 1984-09-28 | 1984-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6162268U (en) |
-
1984
- 1984-09-28 JP JP14664484U patent/JPS6162268U/ja active Pending
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