JPS62179350U - - Google Patents
Info
- Publication number
- JPS62179350U JPS62179350U JP6740186U JP6740186U JPS62179350U JP S62179350 U JPS62179350 U JP S62179350U JP 6740186 U JP6740186 U JP 6740186U JP 6740186 U JP6740186 U JP 6740186U JP S62179350 U JPS62179350 U JP S62179350U
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- pressure
- combustion engine
- supplies
- cranking
- 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 8
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
図面は本考案の一実施例を示し、第１図は内燃
エンジンの空燃比制御装置の構成図、第２図は第
１図の電子コントロールユニツトを示すブロツク
回路図、第３図は空燃比制御実行プログラムを示
すサブルーチン、第４図は吸気管内圧力と車速及
びエンジン温度との関係を示す図である。
１……内燃エンジン、８……負圧応動型制御弁
、１２……燃料通路、１８……作動負圧室、２０
……圧力切換弁。
The drawings show one embodiment of the present invention, in which Fig. 1 is a block diagram of an air-fuel ratio control device for an internal combustion engine, Fig. 2 is a block circuit diagram showing the electronic control unit of Fig. 1, and Fig. 3 is an air-fuel ratio control system. FIG. 4, a subroutine showing the execution program, is a diagram showing the relationship between intake pipe internal pressure, vehicle speed, and engine temperature. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 8... Negative pressure responsive control valve, 12... Fuel passage, 18... Operating negative pressure chamber, 20
...Pressure switching valve.
Claims (1)
つ該メイン系燃料通路を流れる燃料量を制御する
負圧応動型制御弁と、該負圧応動型制御弁の作動
負圧室へ開弁圧及び閉弁圧を択一的に切換供給せ
しめる圧力切換弁とを具備し、前記内燃エンジン
がクランキング状態にある時、及びクランキング
終了後エンジン温度に応じた所定時間の間、前記
圧力切換弁を開弁圧供給状態に切り換えることに
より小さな空燃比の混合気を供給することを特徴
とする内燃エンジンの空燃比制御装置。 A negative pressure responsive control valve is provided in a main fuel passage of an internal combustion engine and controls the amount of fuel flowing through the main fuel passage; and a pressure switching valve that selectively switches and supplies pressure, and opens the pressure switching valve when the internal combustion engine is in a cranking state and for a predetermined time depending on the engine temperature after cranking is completed. An air-fuel ratio control device for an internal combustion engine, characterized in that it supplies a mixture with a small air-fuel ratio by switching to a pressure supply state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6740186U JPS62179350U (en) | 1986-05-02 | 1986-05-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6740186U JPS62179350U (en) | 1986-05-02 | 1986-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62179350U true JPS62179350U (en) | 1987-11-14 |
Family
ID=30906278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6740186U Pending JPS62179350U (en) | 1986-05-02 | 1986-05-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62179350U (en) |
-
1986
- 1986-05-02 JP JP6740186U patent/JPS62179350U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62179350U (en) | ||
| JPS62179349U (en) | ||
| JPS62179351U (en) | ||
| JPS6363565U (en) | ||
| JPS6363566U (en) | ||
| JPH02127769U (en) | ||
| JPS60152039U (en) | Internal combustion engine control device | |
| JPS62117249U (en) | ||
| JPS5840284Y2 (en) | Carburetor with air-fuel ratio control device | |
| JPS5940539U (en) | Intake air amount control device for internal combustion engines | |
| JPS61123850U (en) | ||
| JPH0163746U (en) | ||
| JPS648436U (en) | ||
| JPH024944U (en) | ||
| JPS6157149U (en) | ||
| JPS6163442U (en) | ||
| JPH0169153U (en) | ||
| JPS63141861U (en) | ||
| JPS6254257U (en) | ||
| JPS63162954U (en) | ||
| JPS62132255U (en) | ||
| JPS63198440U (en) | ||
| JPH0387945U (en) | ||
| JPS58102747U (en) | Alcohol engine starting aid device | |
| JPS5827552U (en) | Startability improvement device for engines with carburetors |