The composition of axial flow fan

The axial flow fan is mainly composed of 1-hub; 2-blade; 3-shaft; 4-casing; 5-air collector; 6-streamline body; 7-rectifier; 8-diffuser.And the air inlet and impeller composition.The air inlet consists of an air collector and a streamline body, and the impeller consists of a hub 1 and a blade 2.The impeller is fixed with the shaft 3 to form the rotor of the fan, and the rotor is supported on the bearing.When the motor drives the fan impeller to rotate, there is a relative airflow through each blade.