This includes Fuel Injection Systems such as Carburator, MPFI & CRDI fuel injection system

1. A
Presentation On
Fuel Injection Systems
BY
HARKE PRANAV GURUSIDHAPPA
BEWOOR JITESH -.
UDGIRI RAMESHWAR -.
UNDER THE GUIDANCE OF
Mr. Patil N. R.
DEPARTMENT OF MECHANICAL ENGINEERING
Shanti Education Society’s
A. G. Patil Polytechnic Institute, Solapur
2018-19

2. What is Fuel Injection System
 The main purpose of the Fuel Injection
System is to deliver fuel to the
cylinder(s) of engine.
 The correct amount of fuel must be
delivered to meet power requirement.

3. Types Of Fuel Delivery System In
I.C. Engines
 Conventional Method :
1) Carburetor
 Modern Petrol Engine :
1) M.P.F.I. System
 Modern Diesel Engine :
1) C.R.D.I. Systems

4. Carburetor

5. Components of Carburetor
 Air passage (Venturi)
 Throttle Valve
 Choke
 Bowl
 Float
 Adjustment Screws

7. Advantages
 Carburetor parts are cheaper in cost.
 With the use of carburetor we get
more air fuel ratio.
 In terms of road test, carburetor
generate more power.

8. Disadvantages
 Fuel consumption is more.
 The working of carburetor get affected
by change in atmospheric pressure.

9. Applications
 Used in mopeds and scooters
 Used in lower displacement engines.

10. M.P.F.I. System

11. Components of MPFI
 Air Intake System
 Fuel Delivery System
 Electronic Control Unit
 Emission Control System

12. Advantages
 Increases engine efficiency.
 Low maintenance.
 Produces high power.
 Works precisely.

13. Disadvantages
 Complexity.
 High installation cost.

14. Applications
 Used in modern petrol cars.
 Used in medium and high
displacement bikse.

15. C.R.D.I System

16. Components of CRDI
 Fuel Pump
 Common Fuel Rail
 Injectors
 Engine Control Unit

17. Advantages
 Reduced noise and vibrations.
 Increases fuel economy.
 Higher power output even at lower
rpm,

18. Disadvantages
 Increased cost due to high pressure
pump and electronic unit.

19. Applications
 Used in multi cylinder diesel engines

20. Q&A…