Bilal Ahmad is a service engineer for Orient energy system pvt. He describes the C33D5 diesel engine used in their gensets. The 4-cylinder inline engine has a compression ratio of 18.5:1 and uses a direct injection fuel system. Bilal explains the basic 4-stroke combustion process and lists key internal engine components like the cylinder block, head, valves, piston, rings, and crankshaft. He also describes several external components critical to engine operation, including the cooling system, fuel system, air intake system, and turbocharger.

3. INTRODUTION:-
NAME = BILAL AHMAD
Designation= SERVICE ENGINEER
Department= Product Support Desiel Engine
Company= Orient energy system pvt. limitid

4. Discription
Engine Works &
Wears
Engine Wear
Combustion Process
Internal Components
External Components
Cooling System
Lube System
Fuel System
Air System

5. MODEL=C33D5 (X Series)
Frequency=50
Fuel Type= Diesel

6. Genset Data Sheet

7. TECHNICAL SPECIFICATIONS
ENGINE MODEL
For genset Models
Engine Type
No. Of Cylinder
Compression Ratio
Firing Order
Cycle of operation
Combustion system
Fuel pump
Governing
Cooling
X3.3 GI, X3.3G2
C33D5,C38D5 C30D6,C35D6
INLINE
4
18.5:2
1-3-4-2
Four Stroke
Direct Injection
BOSCH IN-LINE
Mechanical
Water cooled

8. Engine
An engine is motor which
converts chemical energy
into mechanical energy

9. Combustion Process

10. The Combustion Process – 4 Stroke Cycle
Intake Compression

11. The Combustion Process – 4 Stroke Cycle
Power Exhaust

12. Internal Components

13. Parts of an engine

14. Various Parts of Engine
• Crankshaft
• Crankcase
• Crank Pin
• Camshaft
• Spark plug
• Fuel pump
• Cylinder Block
• Cylinder Head
• Inlet valve &
Exhaust valve
• Piston
• Piston Rings
• Connecting Rod
• Gudgeon Pin

15. Cylinder Block
The cylinder block, also called as
engine block is the main bottom end
structure. Usually it is made up of
iron or aluminum.
Function: In the bore of the cylinder
the fresh charge of air-fuel mixture
is ignited,compressed by piston.

16. Cylinder Head
The cylinder head is flat plate of
metal bolted to the top of cylinder
block with head gasket in
between;Top of head contains
rocker arm & push rod to transfer
rotational mechanic from the
crankshaft to linear mechanic to
operate the valves. It is the key to
performance of the internal
combustion chamber.

17. Inlet valve & Exhaust valve
Inlet valve:Its function is to intake
the fresh air-fuel mixture into the
cylinder.
Exhaust valve:Its function is to
exhaust is the burnt gases by the
force of piston.

18. Piston
Piston is connected to the crankshaft
through the connecting rod,when
piston moves downward sucks fresh
air-fuel mixture in suction stroke &
ignited inside the cylinder due to
this high temperature and pressure
generated,thus expanded gas force
down to piston.

19. Piston Rings
A piston ring is an open ended ring
that fits into a groove or outer
diameter of the cylinder. Piston
rings have three major functions
which are to seal the expansion
chamber,support heat transfer &
finally,regulate the engine oil
consumption.

20. Connecting Rod & Gudgeon Pin
A small end of connecting rod is
connected to the piston and other
end is connected to the crankshaft.
Its function is to transmit the
reciprocating motion of piston to the
to the rotary motion of crankshaft.
Gudgeon pin is used to connect the
piston & connecting rod.

21. Crankshaft
Crankshaft is the part of an engine
which translates the reciprocating
linear motion of piston into
rotation. To convert the
reciprocating motion into
rotation,the crankshaft has “crank
pin”,it typically connects to
flywheel,to reduce the pulsation
characteristics four stroke cycle.

22. Camshaft
Camshaft is a part which is used in
piston engine to operate valves. It
consists of cylindrical rod with
cams. The camshaft were invented
in Iraq (Mesopotamia), described
by Al-Jazari in 1206.The
relationship between camshaft
rotation & crankshaft rotation is of
critical importance.

23. External components

24. Turbocharger
An exhaust driven air
compressor
Impeller on the left
Turbine on the right
Connecting shaft, free
floating
bearings, oil lubricated
center housing

25. Aftercooling
Heat exchanger for inlet air
Series of metal tubes through
which hot inlet air flows
Heat from the air flowing from
the tubes is absorbed through
the tube walls and carried away
2 types
Air to air (ATAAC)
Jacket water (JWAC)

26. Water Pump
Flow of the coolant begins
at the water pump
Water pumps are gear or
belt driven
Water pump seals
Separates engine oil from
coolant

27. OIL COOLER

28. FUEL SYSTEM

29. Types of fuel system
PT = PRESSURE TIME
IFSM =INTIGRATED FUEL SYSTEM MODULE
CRS= COMMON RAIL SYSTEM
MCRS= MODULAR COMMON RAIL
SYSTEM
CAPS=COMMON ACCUMOLATED PUMPING SYSTEM
HPI=HIGH PRESSURE INJECTION SYSTEM
ININE= INJECTION
ROTARY= INJECTION

30. FUEL SYSTEM DIAGRAM

31. FLOW DIAGRAM,FUEL SYSTEM
1.FUEL FROM SUPPLY TANK
2.FUEL LIFT PUMP
3.FUEL FILTER/WATER SEPARATOR
4.LOW-PRESSURE FUEL SUPPLY LINES
5.BOSCH@ KKSB COLD START INJECTION
ADVANCE
6.Bosch@ VE INJECTION PUMP
7.FUEL DRAIN MANIFOLD
8.HIGH PRESSURE FUEL SUPPLY LINES
9.BOSCH@ CLOSED NOZZLE INJECTORS
10.FUEL RETURN TO SUPPLY TANKS

32. AIR INTAKE SYSTEM

33. AIR SYSTEM

34. AIR SYSTEM COMPONENTS
Precleaner
Air Filters
Filter Service Indicator
Turbochargers
Aftercooler
Intake & Exhaust
Manifolds
Muffler

35. Air System Operation
Flow
1. Precleaner
2. Air Filters
3. Turbocharger
4. Intake Manifold &
Cylinder Head(s)
5. Combustion Chamber
6. Exhaust Manifold
Wear
Turbocharger
Bearings

36. Common Engine Terms
Common Engine Terms
>Bore
>Stroke
>Compression Ratio
>Displacement
>Horsepower

37. Bore Size
>The diameter of the
cylinder
>Measured in inches or
millimeters

38. Stroke
>How far the piston
moves from TDC to
BDC
>Equal to twice the
crank radius

39. Compression Ratio
Compression Ratio
> Ratio between the
cylinder volume with the
piston at BDC and the
volume with the piston
at TDC Compression
ratio of our engines are
approximately a 16:1
(non-ACERT) and 18:1
(ACERT)

40. Compression Ratio
Compression Ratio
> Ratio between the
cylinder volume with the
piston at BDC and the
volume with the piston
at TDC Compression
ratio of our engines are
approximately a 16:1
(non-ACERT) and 18:1
(ACERT)

41. Displacement
Engine size is expressed
in liters or cubic inches
Displacement = X Stroke X No. of Cyls.
(3.14 X B 2
)
4

42. Horsepower
Horsepower is the rate of doing work (how
quickly a force is applied through a distance)
Horsepower can be expressed in pound feet per
second
1 horsepower = 550 lb/ft per second
= 33,000 lb/ft per
minute

43. THANKS YOU