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Is it normal for the fan to run for a few minutes after parking?

1 Answers

MacSimon

07/30/25 7:34am

It is normal for the fan to run for a few minutes after parking. Here is some relevant information about automotive cooling fans: 1. Axial fan: The blades of an axial fan push air to flow in the same direction as the axis. The impeller of an axial fan is somewhat similar to a propeller. During operation, the majority of the airflow moves parallel to the axis, in other words, along the direction of the axis. The power consumption of an axial fan is lowest when the inlet airflow is free air at 0 static pressure, and it increases as the back pressure of the airflow rises during operation. 2. Centrifugal fan: When a centrifugal fan operates, the blades push air to flow in a direction perpendicular to the axis (i.e., radially). The intake is along the axis direction, while the exhaust is perpendicular to the axis direction. In most cases, an axial fan can achieve the cooling effect. However, sometimes, if the airflow needs to rotate 90 degrees to be discharged or a higher air pressure is required, a centrifugal fan must be selected. Strictly speaking, a blower also belongs to the category of centrifugal fans.

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