Introduction to I.C (Internal Combustion) Engine

Internal Combustion Engine is a type of engine which converts chemical and thermal energy of fuel into mechanical energy. In this all the combustion process take place inside the combustion chamber hence combustion chamber is integral part of an engine.

IC Engine

Main Components of an IC engine :-

1. Engine Head
2. Inlet valve
3. Outlet valve
4. Piston
5. Gudgeon pin
6. Connecting rod
7. Crank shaft
8. Sump tank
9. Cylinder
10. Water Jacket

Single cylinder IC engine

Classification of an IC engine :-

According to Thermodynamic cycle - 

• Otto cycle
• Diesel cycle
• Dual cycle

According to fuel used - 

• Petrol/Gasoline
• Diesel
• CNG

According to number of stroke -

• 2 stroke
• 4 stroke

According to number of piston or cylinder - 

• 1, 2, 3, 4, 6, 8, 12, 16

According to geometry of engine - 

• Horizontal
• Vertical
• V shape
• Wshape
• Radial
• Inline

According to cooling system - 

• Air cool
• Oil cool
• Liquid cool

According to ignition method -

• Spark ignition
• Compression ignition

According to application - 

• Automobile
• Aerospace
• Train
• Ship

Various system in engine :-

1. Cooling system
2. Fuel system
3. Exhaust system
4. Lubrication system
5. Ignition system
6. Electrical system