Introduction Classification In working Cycle four stoke engine Two stroke Engine

1. Presented By:- Mohammed Tayeeb USN:-4MC16IP402
Industrial And Production Engineering

2. 1
• Introduction
2
• Classification
3
• Four-Stroke Engine
• Two-Stroke Engine

3. • Internal combustion engine are those in which
combustion takes place within the engine. Chemical
energy of the fuel is converted to thermal energy and
thermal energy is converted to mechanical energy.
• Ex: Gasoline Engine, Diesel Engine, Wankel Engine,
Open cycle Gas Turbine

4. CLASSIFICATION OF I.C. ENGINE
Working Cycle (Strokes) :
1. Four Stroke Cycle
2. Two Stroke Cycle

5. Components of
Four-Stroke Engines
Intake Valve
Valve Cover
Intake Port
Head
Coolant
Engine Block
Oil Pan
Oil Sump
Crankshaft
Camshaft
Exhaust Valve
Spark Plug
Exhaust Port
Piston
Connecting Rod
Rod Bearings

6. IntakeStroke
• Intake valve opens.
• Piston moves down, ½ turn of
crankshaft.
• A vacuum is created in the
cylinder.
• Atmospheric pressure pushes
the air/fuel mixture into the
cylinder.
CompressionStroke
• Valves close.
• Piston moves up, ½ turn of
crankshaft.
• Air/fuel mixture is compressed.
• Fuel starts to vaporize and heat
begins to build.

7. PowerStroke
• Valves remain closed.
• Spark plug fires igniting fuel
mixture.
• Piston moves down, ½ turn of
crankshaft.
• Heat is converted to mechanical
energy.
ExhaustStroke
• Exhaust valve opens.
• Piston move up, crankshaft
makes ½ turn.
• Exhaust gases are pushed out
polluting the atmosphere.

8. Four Stroke Cycle Animation

9. Four Stroke Cycle Animation
Used In Automobiles

10. Components of
Two-Stroke Engines
Transfer port
Crank case
Exhaust port

11. 2. Power / Exhaust
a. ignition
b. piston moves downward
compressing fuel-air mixture
in the crankcase
c. exhaust port opens
1. Intake / Compression
a. inlet port opens
b. compressed fuel-air mixture
rushes into the cylinder
c. piston upward movement
provides further compression

12. Two Stroke Cycle Animation