14-05-2010, 06:48 AM
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Gasoline Direct Injection
Prepared By:
PAPPU SINGH 1JS06ME027
Introduction
Advantages of Fuel Injection over Carburetor
Electronic Fuel Injection
Multi Point Fuel Injection
Gasoline Direct Injection
The Difference Between New GDI And Current MPI
Technical features
Major characteristics of the GDI engine
Realization of lower fuel consumption
Vehicle Fuel Consumption
Realization of Superior Output
Achievements
Conclusion
ADVANTAGES OF FUEL INJECTION OVER CARBURETOR
¤ Fuel injection has no choke, but sprays atomized fuel directly into the engine.
¤ Electronic fuel injection also integrates more easily with computerized engine control systems.
¤ Multi port fuel injection delivers a more evenly distributed mixture of air and fuel to each of the engine's cylinders.
¤ Sequential fuel injection improves power and reduces emissions.
Fuel Injectors
A fuel injector is nothing but an electronically controlled valve.
When the injector is energized, an electromagnet moves a plunger that opens the valve, allowing the pressurized fuel to squirt out through a tiny nozzle.
It is controlled by the ECU.
A pipe called the fuel rail supplies pressurized fuel to all of the injectors.
MULTI POINT FUEL INJECTION SYSTEM
Have a separate fuel injector for each cylinder .
Have better cylinder to cylinder distribution.
Eliminate the need to preheat the intake manifold
BASIC TECHNICAL FEATURES OF GDI ENGINE
The Upright Straight Intake Port.
The Curved-top Piston.
The High Pressure Fuel Pump.
The High Pressure Swirl Injector.
CONCLUSION
Frequent operation in stratified mode.
Reduction of CO2 production by nearly 20 percent.
Provides improved torque 5-10%
Fulfills future emissions requirements.
97% NOx reduction is achieved.
Improve the brake specific fuel consumption.
Smooth transition between operation modes.
Reduced fuel consumption 15-20%
Up to 5% more power
Spontaneous response behavior
Gasoline Direct Injection
Prepared By:
PAPPU SINGH 1JS06ME027
Introduction
Advantages of Fuel Injection over Carburetor
Electronic Fuel Injection
Multi Point Fuel Injection
Gasoline Direct Injection
The Difference Between New GDI And Current MPI
Technical features
Major characteristics of the GDI engine
Realization of lower fuel consumption
Vehicle Fuel Consumption
Realization of Superior Output
Achievements
Conclusion
ADVANTAGES OF FUEL INJECTION OVER CARBURETOR
¤ Fuel injection has no choke, but sprays atomized fuel directly into the engine.
¤ Electronic fuel injection also integrates more easily with computerized engine control systems.
¤ Multi port fuel injection delivers a more evenly distributed mixture of air and fuel to each of the engine's cylinders.
¤ Sequential fuel injection improves power and reduces emissions.
Fuel Injectors
A fuel injector is nothing but an electronically controlled valve.
When the injector is energized, an electromagnet moves a plunger that opens the valve, allowing the pressurized fuel to squirt out through a tiny nozzle.
It is controlled by the ECU.
A pipe called the fuel rail supplies pressurized fuel to all of the injectors.
MULTI POINT FUEL INJECTION SYSTEM
Have a separate fuel injector for each cylinder .
Have better cylinder to cylinder distribution.
Eliminate the need to preheat the intake manifold
BASIC TECHNICAL FEATURES OF GDI ENGINE
The Upright Straight Intake Port.
The Curved-top Piston.
The High Pressure Fuel Pump.
The High Pressure Swirl Injector.
CONCLUSION
Frequent operation in stratified mode.
Reduction of CO2 production by nearly 20 percent.
Provides improved torque 5-10%
Fulfills future emissions requirements.
97% NOx reduction is achieved.
Improve the brake specific fuel consumption.
Smooth transition between operation modes.
Reduced fuel consumption 15-20%
Up to 5% more power
Spontaneous response behavior
