Is the automobile fuel-saving turbine effective?

About the landlord's concern about "Is the automobile fuel-saving turbine effective?" The following is my personal opinion:

The principle of turbocharger is to imitate the principle of exhaust gas turbocharger:

1. Drive turbine blades with motor to increase air intake and pressure. The exhaust gas turbine rotates passively, because the exhaust pressure of the engine is very high, resulting in the maximum speed of the exhaust gas turbine reaching more than 654.38+ 10,000 revolutions; However, the electronic turbocharger is only driven by the car battery 12V DC, and the actual speed is difficult to exceed 10000 rpm.

2. The electronic turbocharger is installed in front of the throttle valve, and the increased air intake can be read by the air flow sensor of the original vehicle, so the fuel injection quantity will be adjusted accordingly;

3. When the vehicle speed increases to a certain speed, the air intake of the engine increases sharply, and the electronic turbocharger with relatively low speed becomes the biggest resistance object of the air intake of the vehicle, which leads to the decrease of the maximum power of the vehicle.