Substantially noiseless fan for cooling motors

Details Substantially noiseless fan for cooling motors Substantially noiseless fan for cooling motors

1991-09-20

1992-11-24

Look, Edward K.

Rotary kinetic fluid motors or pumps

Smooth runner surface for working fluid frictional contact

415206, 4151821, 4152081, F01D 136, F03B 500

Patent

active

051658461

ABSTRACT:
A motor driven fan having a plurality of annular disks carried by a drive shaft of the motor in closely spaced, parallel relationship. At relatively high motor speeds, bodies of air between the disks are sheared from boundary layers of the air adhering to the sides of the disks and expelled radially outward by centrifugal force acting on them. An annular plate carried by the disk assembly has a cylindrical skirt encircling the disk peripheries which deflects air expelled from between the disks toward the motor to cool it.

REFERENCES:
patent: 2554602 (1951-05-01), Sutton
patent: 2601947 (1952-07-01), Buttner
patent: 3864055 (1975-02-01), Kletschka et al.
patent: 4036584 (1977-07-01), Glass
patent: 4518325 (1985-05-01), Kingston
Possell, Possell Bladeless Process Pumps, Jan. 1983.

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