Low weight fan with internal cooling

Details Low weight fan with internal cooling Low weight fan with internal cooling

1989-10-23

1992-05-19

Smith, Leonard E.

Pumps

Motor driven

Motor within rotary pumping member

417366, 41742315, 41742312, 310 62, 4151821, F04B 3504

Patent

active

051143178

ABSTRACT:
Electric motor cooling difficulties in a ducted axial flow electric fan construction are avoided through the use of a duct-like housing (10) having an interior wall (30) with axially spaced feet (34), (40) within the housing (10) and radially inward of the interior wall (30). A motor stator (88) is located within the housing (10) and is engaged by the feet (34) and (40) to be mounted in spaced relation to the interior wall (30) with its exterior surface (98) between the feet (34), (40) and facing and exposed to the interior wall (30). A rotor (84) is journalled within the stator (88) and mounts an impeller (52) which drives ambient gas through the housing (10) in contact with the exterior surface (98) of the stator to cool the same.

REFERENCES:
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patent: 3643119 (1972-02-01), Lukens
patent: 3936423 (1976-02-01), Gakenholz
patent: 4213745 (1980-07-01), Roberts
patent: 4464580 (1984-08-01), Miller et al.

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