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ENGINE AND ITS CLASSIFICATIONS

 

VIDEO LECTURE ON ENGINE AND ITS CLASSIFICATIONS


ENGINE

What is engine ?

  • It is a power generating machine which converts power into motion.
  • Otherwise we can define as, engine is a device which converts heat energy of the fuel into mechanical energy.

Example : Petrol engine, Diesel engine

INTERNAL COMBUSTION ENGINE

What is heat engine?

Heat engine is a device which converts heat energy into work.

Example: IC engine, EC engine

EXTERNAL COMBUSTION ENGINE

 

What is IC engine ?

  • IC engine also called as internal combustion engine.
  • The combustion of fuel takes place inside of the cylinder.
  • During combustion process, chemical energy of the fuel is converted into heat energy. Further it is converted into useful work.

Example : Petrol engine, Diesel engine, Gas turbine.

 

TURBINE

What is EC engine ?

  • EC engine also called as external combustion engine.
  • The combustion of fuel takes place externally.
  • In external combustion engine heat energy is converted into mechanical work.

Example : Steam turbines used in thermal power plant. Gas turbine power plant.

CLASSIFICATIONS OF ENGINE

Based on construction

  • Rotary engine Ex: Wankel engine
  • Reciprocating engine Ex: Petrol engine

 

ROTARY ENGINE

RECIPROCATING ENGINE

Based on thermodynamic cycle

  • Otto cycle Ex: Petrol engine
  • Diesel cycle Ex: Diesel engine

Based on fuel

  • Petrol Ex: Petrol engine
  • Diesel Ex: Diesel engine

Based on cooling system

  • Air cooled engine Ex: Two wheeler
  • Water cooled engine Ex: Four Wheeler

Based on strokes

  • Two stroke engine Ex: RX 100 bike
  • Four stroke engine Ex: Hero passion 

 

TWO STROKE ENGINE

FOUR STROKE ENGINE

Based on ignition system

  • Spark ignition system Ex: Petrol engine
  • Compression ignition system Ex: Diesel engine

Based on arrangement of cylinder

  • Horizontal engine
  • Vertical engine
  • V type engine
  • In line engine
  • Radial engine

 

HORIZONTAL ENGINE

VERTICAL ENGINE

V TYPE ENGINE

INLINE ENGINE

RADIAL ENGINE

Based on speed

  • Low speed engine
  • Medium speed engine
  • High speed engine

Based on Number of cylinder

  • Single cylinder engine
  • Multi cylinder engine

 

SINGLE CYLINDER ENGINE

MULTI CYLINDER ENGINE

Based on Lubrication system

  • Petrol or mist lubrication system
  • Wet sump lubrication system
  • Dry sump lubrication system

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