JPS57102558A - Fuel supply unit for internal combustion engine - Google Patents
Fuel supply unit for internal combustion engineInfo
- Publication number
- JPS57102558A JPS57102558A JP17948680A JP17948680A JPS57102558A JP S57102558 A JPS57102558 A JP S57102558A JP 17948680 A JP17948680 A JP 17948680A JP 17948680 A JP17948680 A JP 17948680A JP S57102558 A JPS57102558 A JP S57102558A
- Authority
- JP
- Japan
- Prior art keywords
- air
- negative pressure
- fuel
- high speed
- throttle valve
- 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
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
PURPOSE: To improve fuel distribution and atomization by providing a fuel injection valve and a holder which face a suction manifold and by installing two blade shaped throttle valves on the down stream side and by generating a negative pressure in front of the throttle valves, thereby introducing an auxiliary air.
CONSTITUTION: During idling time, a throttle valve is full closed at a position indicated by a solid line, which generates a strong suction negative pressure on the down stream side of the throttle valve 16. Therefore, part of or total intake air is introduced to the front of a nozzle 20 at high speed through an air intake channel 23, thereby turning an injection fuel from a nozzle 4A into fine particles. When the throttle valve is full open at a position indicated by an alternate long and two short dash line during accelerating time, an intake air flows through a venturi member between the two throttle valves at high speed, thereby generating a negative pressure. The generation of negative pressure allows the air to be introduced through the air intake channel 23 and the action of high speed suction air flow turns the fuel into fine particles. With this construction, fuel distribution and atomization can be improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17948680A JPS57102558A (en) | 1980-12-18 | 1980-12-18 | Fuel supply unit for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17948680A JPS57102558A (en) | 1980-12-18 | 1980-12-18 | Fuel supply unit for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57102558A true JPS57102558A (en) | 1982-06-25 |
Family
ID=16066663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17948680A Pending JPS57102558A (en) | 1980-12-18 | 1980-12-18 | Fuel supply unit for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57102558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128943U (en) * | 1984-02-08 | 1985-08-29 | 日本電子機器株式会社 | Throttle valve device for internal combustion engine |
-
1980
- 1980-12-18 JP JP17948680A patent/JPS57102558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60128943U (en) * | 1984-02-08 | 1985-08-29 | 日本電子機器株式会社 | Throttle valve device for internal combustion engine |
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