JPS6363566U - - Google Patents
Info
- Publication number
- JPS6363566U JPS6363566U JP15852486U JP15852486U JPS6363566U JP S6363566 U JPS6363566 U JP S6363566U JP 15852486 U JP15852486 U JP 15852486U JP 15852486 U JP15852486 U JP 15852486U JP S6363566 U JPS6363566 U JP S6363566U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- internal combustion
- negative pressure
- supplies
- 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 9
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
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
すサブルーチンである。
１……内燃エンジン、５……スロツトル弁（絞
り弁）、８……負圧応動型制御弁、１２……燃料
通路（メイン系燃料通路）、１８……作動負圧室
、２０……圧力切換弁。
The drawings show one embodiment of the present invention; 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. This is a subroutine that indicates an execution program. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 5... Throttle valve (throttle valve), 8... Negative pressure responsive control valve, 12... Fuel passage (main system fuel passage), 18... Operating negative pressure chamber, 20... Pressure switching valve.
Claims (1)
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する圧
力切換弁とを具備し、前記開弁圧として絞り弁下
流の吸気管内圧力を供給し、該圧力によつて前記
負圧応動型制御弁を開弁作動する内燃エンジンの
空燃比制御装置において、前記内燃エンジンが低
温状態にあり、且つエンジン回転数が所定値未満
のときに、前記圧力切換弁は前記作動負圧室へ開
弁圧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 valve opening pressure and a closing pressure are supplied to the operating negative pressure chamber of the negative pressure responsive control valve. and a pressure switching valve that selectively switches and supplies the internal combustion pressure, which supplies the intake pipe internal pressure downstream of the throttle valve as the valve opening pressure, and uses the pressure to open the negative pressure responsive control valve. In the air-fuel ratio control device for an engine, the pressure switching valve supplies a valve opening pressure to the operating negative pressure chamber when the internal combustion engine is in a low temperature state and the engine speed is less than a predetermined value. Air-fuel ratio control device for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15852486U JPS6363566U (en) | 1986-10-16 | 1986-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15852486U JPS6363566U (en) | 1986-10-16 | 1986-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6363566U true JPS6363566U (en) | 1988-04-26 |
Family
ID=31082094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15852486U Pending JPS6363566U (en) | 1986-10-16 | 1986-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6363566U (en) |
-
1986
- 1986-10-16 JP JP15852486U patent/JPS6363566U/ja active Pending
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