The document discusses various types of internal combustion engines, including two-stroke and four-stroke engines, as well as turbine mechanisms. It outlines the operation cycles, ignition methods, cooling systems, and applications of different engine types. Additionally, it provides details on engine components and concepts such as bore, stroke, and compression ratio.

1. I.C.ENGINE

2. I.C.ENGINE
FOURSTROKEPETROL&DIESELENGINE
TWOSTROKEPETROL&DIESELENGINE
TURBINE
IMPULSE
REACTION
BOILERS
POWERPRODUCINGDEVICES

3.  ENGINE
Mechanical device which converts one
form of energy into another form
 I.C.ENGINE
Engine in which combustion take place
inside engine cylinder is called IC engine.
E.g.-Aircraft engine, Automobile Engines

5. 



 1. CYCLEOFOPERATION
Twostrokeengine
Fourstrokeengine
2
. T
H
E
R
M
O
D
Y
N
A
M
I
CCYCLE
Ottocycle
Dieselcycle
Dualcycle
3
. M
E
T
H
O
DOFIGNITION
S.I.ENGINE
C,I.ENGINE
4.NO.OFCYLINDERS
Single
Multi
5. COOLINGSYSTEM
Aircooled
Watercooled
Oilcooled

6.  FUELUSED
Petrol
Diesel
Gas
SPEED
Highspeed
Lowspeed
Mediumspeed
APPLICATION
Automotiveengines
Aircraftengines
Marineapplication
Generatorsets

7.  ARRANGEMENTOF CYLINDERS
Vertical
Horizantal
V- engine
Radial engine
Opposed cylinder
Opposed piston

8.  BORE
 STROKE
 TDC
 BDC
 CLEARENCEVOLUME
 SWEPTVOLUME
 COMPRESSIONRATIO

9. Intake Valve
Valve Cover
Intake Port
Head
Coolant
Engine Block
Oil Pan
Oil Sump
Crankshaft
Camshaft
ExhaustValve
Spark Plug
ExhaustPort
Piston
Connecting Rod
RodBearings
Back
Next
Diagram

10. 10
 Intake
 Compression
 Power
 Exhaust

11. 11
 Intake valve opens.
 Piston moves down, ½
turn of crankshaft.
 A vacuum is created in
the cylinder.
 Atmospheric pressure
the air/fuel
into the
pushes
mixture
cylinder.

12. 12





13. 13
 Valves remain closed.
 Spark plug fires
igniting fuel mixture.
 Piston moves
down, ½turn of
crankshaft.
 Heat is converted to
mechanical energy.

14. 14
 Exhaust valve
opens.
 Piston move
up, crankshaft
makes ½turn.
 Exhaust gases are
pushed out
polluting the
atmosphere.

15. 15

17. 17

18. 18

19. 








 Otto cycle
 Air – fuel mixture
suction stroke
 spark plug is needed
 C.R.=6-12
 Low efficiency
 Light weight
 Cheap
 Less vibration & noise
 Motor cycles, cars, light
duty vehicles
PETROLENGINE(S.I.) DIESELENGINE(C.I.)

20. 







FOURSTROKES
 Cycle-2rev & 4strokes
 1 Power stroke per 2 Rev
 valves
 Complicated, heavy
,costly
 Less power
 Flat piston
 More efficiency
 Cars, bikes,trucks,buses
TWOSTROKES FOURSTROKES

21. WHATISATURBINE
-ATurbineisadevicewhichconvertstheheat energy
ofsteamintothekineticenergy&thento rotational
energy.
-TheMotivePowerinasteamturbineisobtainedby
therateofchange inmomentumofahighvelocity jet
ofsteamimpingingonacurved bladewhichis freeto
rotate.

22. IMPULSETURBINE
a

25.  PUMP
RECIPROCATING
CENTRIFUGAL
 COMPRESSOR
RECIPROCATING
 REFRIGEATOR
 AIRCONDITIONER
WINDOWAIRCONDITIONER