Types of Internal Combustion Engines:

Internal combustion engines can be classified into a large number of types based on several criteria. The classification of IC engines is given below:

1. Based on the fuel used

· Diesel Engine

· Petrol Engine (or Gasoline Engine)

2. Based on the type of cycle

· Otto Cycle Engine

· Diesel Cycle Engine

· Dual Cycle Engine

3. Based on the number of strokes per cycle

· Two-stroke Engine

· Four-stroke Engine

4. Based on the number of cylinders

· Single Cylinder Engine

· Multi cylinder Engine

Ø Twin Cylinder Engine

Ø Three Cylinder Engine

Ø Four Cylinder Engine

Ø Six Cylinder Engine

Ø Eight Cylinder Engine

Ø Twelve Cylinder Engine

Ø Sixteen Cylinder Engine

5. Based on the type of ignition

· Spark Ignition Engine (S.I. Engine)

· Compression Ignition Engine (C.I. Engine)

6. Based on the lubrication system used

· Dry sump lubricated engine

· Wet sump lubricated Engine

7. Based on the cooling system used

· Air-cooled Engine

· Water-cooled Engine

8. Based on the arrangement of valves

· L-head Engine

· I-head Engine

· T-head Engine

· F-head Engine

9. Based on the position of cylinders

· Horizontal Engine

· Vertical Engine

· Radial Engine

· Opposed Piston Engine

· Opposed Cylinder Engine

· V Engine

· W Engine

· Inline Engine

10. Based on the pressure boost given to the inlet air or air-fuel mixture

· Naturally aspired Engine

· Supercharged Engine

· Turbocharged Engine

· Crankcase compressed Engine

11. Based on application

· Automobile Engine

· Aircraft Engine

· Locomotive Engine

· Marine Engine

· Stationary Engine