AF泡沫泵的葉輪結構通常采用雙葉輪或三葉輪設計。其中，雙葉輪泵的葉輪由兩個對稱的葉片組成，它們通過軸向相對旋轉來吸入和排出流體。這種設計可以提供較高的流量和較低的壓力損失。而三葉輪泵則在兩個葉片的基礎上增加了一個中間的葉片，使得葉輪的結構更加復雜，但也可以提供更高的效率和更低的噪音水平。此外，為了提高泵的性能和可靠性，一些高級的AF泡沫泵還采用了可拆卸式葉輪設計，方便用戶進行維護和更換。

The impeller structure of AF foam pump usually adopts double impeller or three impeller design. Among them, the impeller of a double bladed pump is composed of two symmetrical blades, which suck in and discharge fluid through axial relative rotation. This design can provide higher flow rate and lower pressure loss. On the other hand, a three bladed pump adds an intermediate blade on top of two blades, making the impeller structure more complex, but it can also provide higher efficiency and lower noise levels. In addition, in order to improve the performance and reliability of the pump, some advanced AF foam pumps also use removable impeller design to facilitate user maintenance and replacement.