JPS57195850A - Fuel controller in internal combustion engine - Google Patents
Fuel controller in internal combustion engineInfo
- Publication number
- JPS57195850A JPS57195850A JP8130781A JP8130781A JPS57195850A JP S57195850 A JPS57195850 A JP S57195850A JP 8130781 A JP8130781 A JP 8130781A JP 8130781 A JP8130781 A JP 8130781A JP S57195850 A JPS57195850 A JP S57195850A
- Authority
- JP
- Japan
- Prior art keywords
- air
- intake
- injector
- controller
- passage
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
- F02D31/003—Electric control of rotation speed controlling air supply for idle speed control
- F02D31/005—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle by-pass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
PURPOSE:To prevent an engine from misfiring upon low load operation and as well to aim at stabilizing the speed of the engine, by providing an air bypass passage connecting between the upstream side of a fuel injector and the downstream side of a throttle valve, in an air intake passage, and by bypassing intake air through the air bypass passage only upon low load operation. CONSTITUTION:The function of a fuel controller is such that Carman vortices generated by a vortex generating column 6 and having a frequency proportional to the volume of intake air are detected by an intake air volume sensor 5, and are delivered to a controller 10 after they are converted into a square wave (a) having a frequency proportional to the vortex frequency. And pulses (b) having a frequency synchronous with the square wave (a) generated in the controller 10 are applied to an injector 3 for drivingly controlling the injector 3. In the above- mentioned fuel controller there is an air bypass passage 11 having one end opened to an intake air passage 1 between the injector 3 and the air intake volume sensor 5 and the other end opened to the air intake passage 1 downstream of a throttle valve 2. Further, a negative pressure responsive valve mechanism 12 utilizing, as its drive source, negative pressure downstream of the throttle valve 2, is disposed in the air bypass passage 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130781A JPS57195850A (en) | 1981-05-26 | 1981-05-26 | Fuel controller in internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130781A JPS57195850A (en) | 1981-05-26 | 1981-05-26 | Fuel controller in internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57195850A true JPS57195850A (en) | 1982-12-01 |
Family
ID=13742735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8130781A Pending JPS57195850A (en) | 1981-05-26 | 1981-05-26 | Fuel controller in internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57195850A (en) |
-
1981
- 1981-05-26 JP JP8130781A patent/JPS57195850A/en active Pending
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