Electronic Fuel Injection 147

ADVANCEMENT OF ELECTRONIC FUEL INJECTION

VAISHNAVI INSTITUTE OF TECHNOLOGY

BY

A.AMARNATH K.DEVIKA 4 TH YEAR 4 TH YEAR MECHANICAL ENGINEERING MECHANICAL ENGINEERING

INTRODUCTION

1. Multipoint Fuel Injection

2. Gasoline Direct Injection

MAIN COMPON

ELECTRONIC FUEL INJECTION

MAIN COMPONENTS OF ELECTRONIC FUEL INJECTION OF ELECTRONIC FUEL INJECTION

1. Engine Control Unit 2. Sensors 3. Fuel Injectors

MULTI POINT FUEL INJECTION SYSTEM MULTI POINT FUEL INJECTION SYSTEM

GASOLINE DIRECT INJECTION

3.350Fuel Pressure (MPa)

Port InjectionIn-Cylinder Direct InjectionFuel System

StandardUpright StraightIntake Port

Flat top PistonCurved Top PistonCombustion Chamber

10.512.0Compression Ratio

Intake: 2, Exhaust: 2Number of Valves

IL-4Number of Cylinders

1834Displacement

81.0 x 89.0Bore x Stroke (mm)

Conventional MPFIGDIITEM

COMPARISON WITH MPFI

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.

CHARACTERISTICS OF THE GDI ENGINE

Lower fuel consumption and higher output

• Ultra-lean Combustion Mode• Superior Output Mode

In-cylinder Airflow

Fuel Spray

Optimized Configuration of the Combustion Chamber

Vehicle Fuel Consumption

Fuel Consumption During Idling

Fuel Consumption during Cruising Drive

REALIZATION OF SUPERIOR OUTPUT

Improved Volumetric Efficiency

Increased Compression Ratio

ACHIEVEMENTS Engine performance

Vehicle Acceleration

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

THANK YOU!!!

ANY QUIRIES?