Pumps – Motor driven – Motor within rotary pumping member
Patent
1988-09-21
1990-09-11
Stout, Donald E.
Pumps
Motor driven
Motor within rotary pumping member
41742312, 310 67R, 310 90, F04D 2900, F16C 2700
Patent
active
049557912
ABSTRACT:
A bearing assembly for a small compact sized fan is provided which can utilize either a sintered bearing or a roller bearing, and which provides several embodiments for positioning the bearings in a radial and axial direction. The invention utilizes a bearing support tube for constraining the bearing in radial direction and an end cover cap attached to a flange of the fan duct to retain the bearings in an axial direction.
REFERENCES:
patent: 3644066 (1972-02-01), Heob et al.
patent: 4373861 (1983-02-01), Papst et al.
patent: 4564335 (1986-01-01), Harmsen et al.
patent: 4612468 (1986-09-01), Sturm et al.
patent: 4737673 (1988-04-01), Wrobel
patent: 4783608 (1988-11-01), Gruber et al.
Papst-Motoren & Co. GmbH
Stout Donald E.
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