The document discusses different types of fuel injection pumps used in diesel engines, including inline, rotary, and common rail diesel injection pumps. It describes the basic components and functioning of each type of pump. Inline pumps have separate plunger units for each cylinder and are activated by a camshaft. Rotary pumps use a single plunger connected to different ports on a distributor head via springs. Common rail diesel pumps operate at very high pressure and can vary the timing and amount of fuel injection independently for each cylinder.

1. F.E.T AGRA COLLEGE AGRAF.E.T AGRA COLLEGE AGRA
SUMITTED TO: SUBMITTED BY:
Er. RAHUL JAIN RAHUL SOLANKI
Er. DEEPAK PATHAK 1200240034
RAM NAKSHTRA PAL
1200240037
ME IV YEAR

2. TRAINING CENTRETRAINING CENTRE
FRIENDSFRIENDS AUTOMOTIVEAUTOMOTIVE

3. MY TOPICMY TOPIC
• WORKING OFWORKING OF
FUEL INJECTIONFUEL INJECTION
PUMPSPUMPS

4. CONTENTSCONTENTS
• INTRODUCTIONINTRODUCTION
• FUNCTION OF FUEL INJECTION PUMP (FIP)FUNCTION OF FUEL INJECTION PUMP (FIP)
• TYPES OF FIPTYPES OF FIP
• 1. INLINE INJECTION PUMP1. INLINE INJECTION PUMP
• COMPONENTS OF INLINE FUEL INJECTION PUMPCOMPONENTS OF INLINE FUEL INJECTION PUMP
• METHODS OF OPERATIONMETHODS OF OPERATION
• ADVANTAGE OF INLINE FUEL INJECTION PUMPSADVANTAGE OF INLINE FUEL INJECTION PUMPS
• DISADVANTAGE OF INLINE FUEL INJECTION PUMPSDISADVANTAGE OF INLINE FUEL INJECTION PUMPS
• 2. ROTARY FUEL INJECTION PUMPS2. ROTARY FUEL INJECTION PUMPS
• COMPONENTS OF ROTARY FUEL INJECTION PUMPSCOMPONENTS OF ROTARY FUEL INJECTION PUMPS
• METHOD OF OPERATIONMETHOD OF OPERATION
• ADVANTAGE OF ROTARY FUEL INJECTION PUMPADVANTAGE OF ROTARY FUEL INJECTION PUMP
• DISADVANTAGE OF ROTARY FUEL INJECTION PUMPDISADVANTAGE OF ROTARY FUEL INJECTION PUMP
• 3.COMMON RAIL DIESEL FUEL INJECTION PUMP (CRDI)3.COMMON RAIL DIESEL FUEL INJECTION PUMP (CRDI)
• COMPONENTS OF CRDICOMPONENTS OF CRDI

5. FUEL INJECTION PUMPSFUEL INJECTION PUMPS
• INTRODUCTIONINTRODUCTION
FUEL INJECTION PUMPS ARE USEDFUEL INJECTION PUMPS ARE USED
TO PUMP THE FUEL FROM FUELTO PUMP THE FUEL FROM FUEL
TANK TO THE FUEL INJECTORSTANK TO THE FUEL INJECTORS
AND ENGINE IS PROCESSING ITAND ENGINE IS PROCESSING IT
AND DELIVERS AS MECHANICALAND DELIVERS AS MECHANICAL
ENERGY (TORQUE).ENERGY (TORQUE).

6. INJECTION
PUMPSPUMPS
• The fuction of fuel injection pumps is to pump orThe fuction of fuel injection pumps is to pump or
create a regular flow to the engine on certaincreate a regular flow to the engine on certain
fixed time. The fuel injection pump is preciselyfixed time. The fuel injection pump is precisely
delivered fuel maintains a rhythm or timing thatdelivered fuel maintains a rhythm or timing that
keeps the engine running smooth.keeps the engine running smooth.
• Simultaneously, the pump also control theSimultaneously, the pump also control the
amount of fuel needed to gain the desiredamount of fuel needed to gain the desired
power. The injection pump does the throttle andpower. The injection pump does the throttle and
the ignition system needed in gasoline engines.the ignition system needed in gasoline engines.
• It pumps the fuel at high pressure to the engineIt pumps the fuel at high pressure to the engine
through fuel injectors.through fuel injectors.

7. TYPES OF FUELTYPES OF FUEL
INJECTIONINJECTION
PUMPSPUMPS
• 1. Inline fuel injection pump1. Inline fuel injection pump
• 2. Rotary fuel injection pump2. Rotary fuel injection pump
• 3. Common Rail Diesel3. Common Rail Diesel
Injection PumpInjection Pump

8. 1. INLINE FUEL INJECTION1. INLINE FUEL INJECTION
PUMPPUMP
• The first pumps to use plungers to force meteredThe first pumps to use plungers to force metered
fuel to the chamber were developed back in thefuel to the chamber were developed back in the
1890s. It took almost forty years, but in 19721890s. It took almost forty years, but in 1972
Bosch p7100(p-pump) on 94 to 98 Dodge RamBosch p7100(p-pump) on 94 to 98 Dodge Ram
5.9L Cummins engines. They are connected5.9L Cummins engines. They are connected
from separate pump and plunger unitsfrom separate pump and plunger units
connected inline, one per cylinder. They areconnected inline, one per cylinder. They are
activated by a cam, which is mechanicallyactivated by a cam, which is mechanically
connected to engine. Still the pump has theconnected to engine. Still the pump has the
ability to vary timing, although not to be theability to vary timing, although not to be the
sophistication of an electronically controlledsophistication of an electronically controlled
system. Inline pumps look like mini inlinesystem. Inline pumps look like mini inline
engines.engines.

9. COMPONENTS OF INLINE FUELCOMPONENTS OF INLINE FUEL
INJECTION PUMPINJECTION PUMP

10. COMPONENTSCOMPONENTS

11. COMPONENTS OF INLINECOMPONENTS OF INLINE
PUMPSPUMPS
• 1. Delivery valve holder1. Delivery valve holder
• 2. Filler piece2. Filler piece
• 3. Delivery valve spring3. Delivery valve spring
• 4. Pump barrel4. Pump barrel
• 5. Delivery valve5. Delivery valve
• 6. Inlet port and spill port6. Inlet port and spill port
• 7. Control helix7. Control helix
• 8. Pump plunger8. Pump plunger
• 9. Control sleeve9. Control sleeve
• 10. Plunger control arm10. Plunger control arm
• 11. Plunger return spring11. Plunger return spring
• 12. spring set12. spring set
• 13. Roller tappet13. Roller tappet
• 14. Cam14. Cam
• 15. Control rack15. Control rack

12. METHOD OF OPERATIONMETHOD OF OPERATION
• 1. 2.1. 2.
• 3.3.

14. ADVANTAGES OF INLINE FUELADVANTAGES OF INLINE FUEL
INJECTION PUMPINJECTION PUMP
• Atomization is goodAtomization is good
• Better fuel flowBetter fuel flow
• Smoother idealSmoother ideal
• Improve fuel economyImprove fuel economy
• Lower emissionLower emission
• Better cold weather derivabilaityBetter cold weather derivabilaity
• Used for heavy vehicles like buses and heavy trucksUsed for heavy vehicles like buses and heavy trucks
• Increase engine powerIncrease engine power
• Simple in maintenanceSimple in maintenance

15. DISADVANTAGES OF INLINEDISADVANTAGES OF INLINE
FUEL INJECTION PUMPFUEL INJECTION PUMP
• It has many plungers according to theIt has many plungers according to the
number of injectors.number of injectors.
• Size is large due many plungersSize is large due many plungers
• Its working performance is not better thanIts working performance is not better than
rotary fuel injection.rotary fuel injection.

16. 2. ROTARY FUEL INJECTION2. ROTARY FUEL INJECTION
PUMPPUMP
• IntroductionIntroduction
In rotary pump have only one fuel meteringIn rotary pump have only one fuel metering
plunger. A spring rotary makes a hydraulicplunger. A spring rotary makes a hydraulic
connection with the different ports on theconnection with the different ports on the
distributor head. Two examples of mechanicaldistributor head. Two examples of mechanical
rotary pump are the Stan dyne DB2 producesrotary pump are the Stan dyne DB2 produces
6700psi of pressure while the Boscsh VE6700psi of pressure while the Boscsh VE
produces 17000psi. An example of an electronicproduces 17000psi. An example of an electronic
rotary pump is the Bosch VP44, which producesrotary pump is the Bosch VP44, which produces
23000psi.23000psi.

17. COMPONENTS OF ROTARY FUELCOMPONENTS OF ROTARY FUEL
INJECTION SYSTEMINJECTION SYSTEM

18. MAIN COMPONENTSMAIN COMPONENTS

19. SECTIONAL VIEWSECTIONAL VIEW

20. 1. DRIVE SHAFT1. DRIVE SHAFT

21. 2. FEED PUMP2. FEED PUMP

22. 3. PUMP PLUNGER3. PUMP PLUNGER

23. 4.SOLNOID SWITCH4.SOLNOID SWITCH

24. 5. GOVERNOR5. GOVERNOR

25. DIFFERENT CONDITIONS FORDIFFERENT CONDITIONS FOR
GOVERNORGOVERNOR
1. STARTING1. STARTING

26. 2. IDLING2. IDLING

27. 3. FULL LOAD3. FULL LOAD

28. 3. MAXIMUM SPEED3. MAXIMUM SPEED

29. 4. PARTIAL LOAD4. PARTIAL LOAD

30. 6. TIMER6. TIMER

31. 7. VANE TYPE FUEL SUPPLY7. VANE TYPE FUEL SUPPLY
PUMPPUMP

32. 8. ROLLERS AND CAM PLATE8. ROLLERS AND CAM PLATE

33. 9. PORTS9. PORTS

34. 10. CONTROL SLEEVE10. CONTROL SLEEVE

35. METHOD OF OPERATIONMETHOD OF OPERATION

36. WORKINGWORKING

37. ADVANTAGES OF ROTARY FUELADVANTAGES OF ROTARY FUEL
INJECTION PUMPINJECTION PUMP
• Atomization is better than inline pump due toAtomization is better than inline pump due to
high pressurehigh pressure
• Better fuel flow than inline pumpBetter fuel flow than inline pump
• Smooth runningSmooth running
• Lower emission than inlineLower emission than inline
• Single plunger is requiredSingle plunger is required
• Better fuel economy than inline pumpBetter fuel economy than inline pump
• Small sizeSmall size

38. DISADVANTAGES OF ROTARYDISADVANTAGES OF ROTARY
FUEL INJECTION PUMPFUEL INJECTION PUMP
• Its working performance is less than CRDIIts working performance is less than CRDI
• Its maintenance cost is so high and notIts maintenance cost is so high and not
maintain easilymaintain easily
• Not suitable for all the vehiclesNot suitable for all the vehicles
• It is mostly used in cars and light trucksIt is mostly used in cars and light trucks

39. 3. COMMON RAIL DIESEL3. COMMON RAIL DIESEL
INJECION (CRDI)INJECION (CRDI)

40. WORKING OF CRDIWORKING OF CRDI

41. 





42. THANKTHANK
YOUYOU


