Patent attributes
A fluid pressurizing structure and fan using same are disclosed. The fluid pressurizing structure includes a hub having a plate portion located therearound. The plate portion has a first and a second surface provided with a plurality of first and second hollow protrusions, respectively. Each of the first hollow protrusions has a first fluid inlet and a first fluid outlet, and each of the second hollow protrusions has a second fluid inlet and a second fluid outlet. The first and second fluid outlets extend through the plate portion to communicate the first and second fluid inlets with the second and first surface, respectively. When the fan rotates, fluid drawn thereinto sequentially flows through the first fluid inlets and outlets and the second fluid inlets and outlets in a helical movement in cycles, and is therefore continuously pressurized, which facilitates reduced fan vibration and noise and fan motor power consumption.
