This is a very important slide presentation that will help you to know about Gasoline Injection Technology (GDI). You will get a brief description about GDI from this slide and how it is important for a vehicle. How the Direct Injection is so beneficial to improve performance of the vehicle you can confirm from this slide. Have a look.

2. Direct Fuel injection is a
developed technology that allows
gasoline engine to burn fuel
efficiently ….

3. What will be the result By implementing
GDI..???

4. By The Implementation of GDI , it provides
cleaner emission , increased fuel economy and
more energy in engine.

5. How did fuel injection work
before direct injection?

6. The current gasoline ICE depends on 3 factors
to make a perfect Air-fuel Mixture..:
 Oxygenated Air
 Fuel and
 Spark…..

7. Types of Injection System Previously
used..
Single –Point Injection System
 Multi-Point Injection system

8. But previously the air-fuel mixing done by
carburetors and single-point fuel injection
systems that results in providing more fuel to
first cylinder and too less to last cylinder.

10. Multi – Point Fuel Injection

12. How does direct injection improve performance?

14.  In direct Fuel Injection system the air and fuel are
pre-mixed but in gasoline direct injection system
they are not pre-mixed.

15. Air Comes through intake manifold
and gasoline directly injected into
cylinder. Then the solution forms inside
the cylinder.

16. This solution allows the fuel burn more thoroughly
and that gives a better mileage and more power
to the wheels.

17. How the GDI will process
more efficient fuel rather
than other system..??

19. Leaner Mixture Vs Rich Mixture
When the amount of
air is high in oil-fuel
mixture it’s called
leaner mixture
When fuel percent is
high that is called
rich mixture

20. Efficiency of GDI
The exact
Air-fuel mix
used By GDI
is 40:1
instead of
14:7:1 that a
normal
gasoline
engine mix

21. These substance of air-fuel mixture decompressed
within the combustion chamber and causes
unburned fuel at the end.
The fuel placed directly to the hottest combustion
chamber that give a better mileage.
But in normal gasoline engine the fuel compression ends near
to spark plug
The Efficiency Of GDI chamber

22. Fuel
Rail
Special
Programming
used By EMC
Catalytic
Convertors
Different parts used By GDI

24. This special programing system calculates the flow rate,
fuel droplet size, emissions controls etc that provide a
better air-fuel mixture to the engine.

25. The Special catalytic convertors handles the
direct injection engines' notoriously high oxides
of nitrogen emissions that is very much harmful
for environment.

26. Components of a Direct Injection Fuel System
Common Rail
System
Distributor
and Inline
Pump System
Unit Direct
System

27. Common Rail System -- A long metal cylinder distributes
fuel to the injectors under extremely high pressure

28. Distributor and Inline Pump System – This system refers
to either a rotary wheel distributor or plunger-style
pump that is used to push pressurized fuel to the injectors

29. Unit Direct System -- In this setup, the injector and a
fuel pump is integrated into single unit and spray the
mixture over each cylinder

30. The advantages
of GDI
Accurate control
over air-fuel
Mixture
Optimal spray
pattern that
breaks gasoline
into smaller
droplets
More complete
combustion ,
more gasoline
burned
More energy
output and
less pollution

31. Complex
work
process
Most expensive
More rugged
components
used for
withstanding
the head and
pressure
The Limitation Of GDI

32. Thank You