Substantially noiseless fan

Details Substantially noiseless fan Substantially noiseless fan

1991-09-20

1993-03-09

Look, Edward K.

Rotary kinetic fluid motors or pumps

Smooth runner surface for working fluid frictional contact

415203, 4151821, 415143, F01D 136

Patent

active

051921820

ABSTRACT:
A noiseless fan having a group of parallel and thin, closely spaced disks rotatable at relatively high speed. As the disks rotate, boundary layers of air on the disk surfaces rotate bodies of air between the disks while centrifugal force developed by the rotating disks drives the air radially outward to be expelled into the atomosphere. Intake air is admitted axially through central openings in the disks and is directed radially outward into the spaces between the disks to displace the expelled air.

REFERENCES:
patent: 2031734 (1936-02-01), Riebel et al.
patent: 2632598 (1953-03-01), Wales
patent: 3368744 (1968-02-01), Jenn
patent: 4768920 (1988-09-01), Gurth

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