What is the principle of automobile intake heating?

The principle of intake air heating is as follows: two water pipes on the throttle body are used to heat the throttle body, one is the intake pipe and the other is the exhaust pipe, which can lead the engine coolant to the throttle body to heat the throttle, which is actually heating the intake air.

On the one hand, the function of intake air heating is to increase the intake air temperature, which is beneficial to the evaporation and materialization of gasoline and the mixing of gasoline and air; On the other hand, when the engine works in a low temperature environment, it is easy to freeze on the throttle due to the low intake temperature. After adding the heating water pipe of the throttle body, the temperature of the throttle body can be increased and the phenomenon of icing on the throttle can be avoided.

Different inlet heaters have different functions, and diesel inlet heating is to improve cold start performance; The carburetor car heats the intake pipe in order to vaporize gasoline and prepare for combustion.