1、Mechanical supercharging system: This device is installed on the engine and connected to the engine crankshaft by a belt, and gets power from the engine output shaft to drive the rotor of the supercharger to rotate, thus blowing the air into the intake manifold. The advantage is that the turbine speed is the same as the engine, so there is no hysteresis and the power output is very smooth. However, because it is installed inside the engine rotation shaft, it still consumes part of the power, and the effect of boosting out is not high.
　　2, air wave supercharging system: the use of high-pressure exhaust gas pulse air wave to force air compression. This system has good pressurization performance, good acceleration but the whole device is relatively bulky, not quite suitable for installation in the smaller cars.
　　3, exhaust gas turbocharging system: this is our most common turbocharger device, supercharger and the engine without any mechanical connection, is actually an air compressor, by compressing air to increase the intake volume. It is the use of the engine exhaust gas inertial impulse to push the turbine indoor turbine, turbine and drive the coaxial impeller, impeller pressure to send the air from the air filter pipe, so that the pressurization into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the speed of the impeller also increases simultaneously, the impeller compresses more air into the cylinder, the air pressure and density increases can burn more fuel, the corresponding increase in the amount of fuel can increase the engine output power. Generally speaking, after the addition of exhaust gas turbocharger engine power and torque to increase 20%-30%. But the exhaust gas turbocharger technology also has its own must pay attention to the place, that is, the pump wheel and turbine by a shaft connected, that is, the rotor, the engine exhaust gas drive the pump wheel, the pump wheel drives the turbine rotation, the turbine rotation to the air intake system to boost pressure. Supercharger installed in the exhaust side of the engine, so the supercharger working temperature is very high, and the supercharger in the work of the rotor speed is very high, can reach more than 100,000 revolutions per minute, such a high speed and temperature makes the common mechanical needle or ball bearings can not work for the rotor, so turbochargers generally use full floating bearings, lubricated by the oil, there is coolant for the supercharger to cool.
　　4, compound supercharging system: that is, exhaust gas turbocharging and mechanical supercharging and use, this device is used more in high-power diesel engines, its engine output power, low fuel consumption rate, low noise, but the structure is too complex, high technical content, maintenance is not easy, so it is difficult to popularize.