This document provides an overview of fuel injection systems. It discusses the main purpose of fuel injection systems which is to deliver fuel to engine cylinders to meet power requirements. It then outlines the main types of fuel delivery systems including carburetors, MPFI systems for petrol engines, and CRDI systems for diesel engines. For each system, it describes the key components, advantages, disadvantages, and applications. The presentation was given by students under the guidance of their professor to provide information on different fuel injection technologies.

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…