Fan

Details Fan Fan

2006-08-08

2006-08-08

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Axial flow runner

C415S173600, C415S228000, C416S189000

Reexamination Certificate

active

07086825

ABSTRACT:
A fan is provided for use with a casing having a bellmouth and a conduit portion. The fan has a hub, a number of blades extending from the hub, and a shroud. In cooperation with the casing and the conduit portion surrounding the shroud, the shroud has means for generating a separation bubble effective to limit a recirculation flow.

REFERENCES:
patent: 4357914 (1982-11-01), Hauser
patent: 4548548 (1985-10-01), Gray, III
patent: 4685513 (1987-08-01), Longhouse et al.
patent: 4836148 (1989-06-01), Savage et al.
patent: 5342167 (1994-08-01), Rosseau
patent: 5489186 (1996-02-01), Yapp et al.
patent: 5755557 (1998-05-01), Alizadeh

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