Intake

• During the intake phase, the engine's rotor moves past the intake port. As a result of the unique design of the rotary and the housing that contains it, this movement results in a suction effect as the amount of volume between the rotor and the surrounding walls expands.
  
  

Compression

• The compression cycle is essentially the mirror image of the intake cycle. As the rotor moves closer to the walls, the amount of space available to the air-gas mixture decreases, resulting in higher pressures.
  
  

Power

• Since our mixture is now sufficiently compressed, we must now provide a spark to ignite it. This spark occurs during the power cycle, resulting in the generation of immense power as the fuel burns.
  
  

Exhaust

• Finally, the engine expels the burned gas and hot air during the exhaust cycle. The available space once again shrinks, but this time the gas travels out of the open port as opposed to becoming compressed.