JPS57173545A - Fuel controller of internal combustion engine for automobile - Google Patents
Fuel controller of internal combustion engine for automobileInfo
- Publication number
- JPS57173545A JPS57173545A JP5628781A JP5628781A JPS57173545A JP S57173545 A JPS57173545 A JP S57173545A JP 5628781 A JP5628781 A JP 5628781A JP 5628781 A JP5628781 A JP 5628781A JP S57173545 A JPS57173545 A JP S57173545A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- valve
- intake negative
- feed
- fuel
- 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 title abstract 7
- 238000002485 combustion reaction Methods 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/02—Preventing flow of idling fuel
- F02M3/04—Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
- F02M3/045—Control of valves situated in the idling nozzle system, or the passage system, by electrical means or by a combination of electrical means with fluidic or mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To improve fuel consumption at deceleration, by providing a bleed air introducing means in a slow line at the downstream of a carburetor slow fuel feed control valve and performing air bleed when a slow fuel feed is restarted further intake negative pressure is not less than a set value. CONSTITUTION:When an engine is operated at a medium and high speed, a fuel cut valve 12 is opened through a control circuit 18 by outputs of a speed detector 14 and negative pressure switch 16, but a low line is not substantially operated by low intake negative pressure. Then a vehicle goes into a deceleration state, if a throttle valve 4 is closed, the intake negative pressure rises not to output control voltage from the control circuit 18, and the fuel cut valve 12 is closed. And then, intake negative pressure lowers to not higher than a prescribed value, then the fuel cut valve 12 is reopened, simultaneously a negative pressure selector valve 44 is operated through a delay circuit 46 and clutch switch 48, and the intake negative pressure is transmitted to a chamber 32 in an air bleed valve 22. In this way, a valve body 36 is opened to feed bleed air to a feed pipe 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5628781A JPS57173545A (en) | 1981-04-16 | 1981-04-16 | Fuel controller of internal combustion engine for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5628781A JPS57173545A (en) | 1981-04-16 | 1981-04-16 | Fuel controller of internal combustion engine for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57173545A true JPS57173545A (en) | 1982-10-25 |
Family
ID=13022875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5628781A Pending JPS57173545A (en) | 1981-04-16 | 1981-04-16 | Fuel controller of internal combustion engine for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57173545A (en) |
-
1981
- 1981-04-16 JP JP5628781A patent/JPS57173545A/en active Pending
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