What is the disconnection of the air inlet heater of the big five brave corn harvester?

An open circuit in the air inlet heater of Dawuyong corn harvester is an open circuit. Two water pipes on the throttle body are used to heat the throttle body, one is the water inlet pipe and the other is the water outlet pipe, which can lead the engine coolant to the throttle body to heat the throttle body. This is actually heating the intake air, that is, raising 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.