Fan including a plurality of spaced fan bodies

Details Fan including a plurality of spaced fan bodies Fan including a plurality of spaced fan bodies

2008-04-15

2008-04-15

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Axially opposed working fluid paths to or from runner

Pump impeller means

C415S198100, C416S19800R

Reexamination Certificate

active

10566168

ABSTRACT:
A fan including a plurality of spaced fan bodies that rotate in a substantially cylindrical cavity having inlet and outlet openings for tangential intake and discharge of the fluid, the fan bodies comprising substantially disc-shaped bodies that extend in a substantially radial direction from the shaft and are positioned on the shaft such that the shaft runs through the centre of the fan bodies and in such a manner that a void is formed between two neighbouring fan bodies, and wherein each fan body is connected to the shaft or to a spacer only, and wherein the fan bodies are provided with flow elements on both of their radially extending faces, the flow elements consisting of curved projections, the curved projections being curved forwardly as compared to the direction of rotation of the fan bodies and the curved projections extending between two imaginary circles on the fan bodies' radially extending faces having radii r1and r2respectively, wherein r1<r2, the radius r1is larger than the outer radius of the shaft or the outer radius of spacers if spacers are provided, and r2is substantially coincident with the fan bodies' circumference.

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