Refers to the characteristics of the engine, divided into: natural suction, turbo, mechanical pressurization and double pressurization.
1, the natural inspiratory do not need to explain, is the use of negative pressure to the air to inhale the engine.
2, turbo-pressurized exhaust gas to promote the turbine, forcing the air into the cylinder.
3, the mechanical pressure is the engine directly output a transmission shaft connected supercharger, forcing the air into the cylinder.
4, mechanical + Turbo, as the name implies is containing the two types of supercharged engine.