Heat engine

• Heat engine

  • Made up of several cylinders connected to a crankshaft
  • Consists of two valves (an inlet and an exhaust)
  • Consists of a spark plug
  • Consists of a piston
  • Piston rod connects the piston and engine's crankshaft

  
• Gasoline engine operation

  1. Cycle

  2. Four steps (strokes)

  
• The four steps (strokes) are commonly referred to as the cycle
• Heat engines are used to convert thermal energy into mechanical work or electrical power.
• In practice, real engines have lower efficiencies due to irreversibilities such as friction and heat loss.
• In a gasoline engine, fuel is burned inside the combustion chamber, which generates high-pressure hot gases.
• A gasoline engine is a type of internal combustion engine that uses gasoline as its fuel source.
• It operates by igniting a mixture of air and gasoline within the engine, which generates force on the pistons and causes them to move.
• This motion is then converted into useful work through various mechanisms, including driving wheels or turning a generator.
• 4 steps 


  Intake

  Compression

  Power

  Exhaust
• The compression stroke compresses the air/fuel mix