According to the principle classification, fans can be divided into two categories: AC axial fans and centrifugal fans. These two types of fans have different structures, different working principles, and different operating characteristics.

This AC axial fan has many different characteristics in terms of structural configuration, design method, and internal flow phenomenon, and it is not easy to grasp the fan's low-noise design and internal flow mechanism.

Dieser AC-Axiallüfter hat viele unterschiedliche Eigenschaften in Bezug auf die strukturelle Konfiguration, die Entwurfsmethode und das interne Flussphänomen, und es ist nicht einfach, das Design und den internen Strömungsmechanismus des Lüfters zu erfassen.

This AC axial fan has many different characteristics in terms of structural configuration, design method, and internal flow phenomenon, and it is not easy to grasp the fan's low-noise design and internal flow mechanism.