Axial flow fan with multiple segment blades

Details Axial flow fan with multiple segment blades Axial flow fan with multiple segment blades

2006-04-11

2006-04-11

Trieu, Theresa (Department: 3748)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S19800R, C416S20000R, C416S21200A, C416S21400A, C416S23100A

Reexamination Certificate

active

07025569

ABSTRACT:
An axial flow fan with a plurality of segment blades is described. The axial flow fan has a base, a hub and a plurality of blade units. The hub is mounted on, or pivots on, the base and supports the blade units. Each of the blade units is connected to a periphery of the hub and extends radially outward from the base has a plurality of segment blades. A segment space between the segment blades reforms a boundary layer of fluid passing over the segment blades and reduces the thickness of the boundary layer on the blade surfaces. As a result, the separation between the blade surfaces and fluid is avoided to maintain a laminar flow of the fluid adjacent to the segment blades.

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