H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/30
H02K 9/06 (2006.01) F04D 25/08 (2006.01) H02K 7/14 (2006.01) H02K 29/00 (2006.01)
Patent
CA 2012247
A fan motor assembly provides axial air flow. A rotatable assembly including a substantially cylindric central portion supported for rotation about an axis coaxial with said central portion. The central portion has at least one permanent magnet element which rotates about the axis as the central portion rotates. The rotatable assembly further includes fan blades on an annular wall of the central portion and extending radially outwardly from the central portion. The annular wall and the central portion form an annular channel. The blades axially move air which is located about the outer periphery of the rotatable assembly as the rotatable assembly rotates. A stationary assembly includes a support for supporting a annular core having an central opening therein adapted to receive the central portion and having a plurality of winding stages thereon in magnetic coupling relation with the permanent magnet element and adapted to be electrically energised to generate an electromagnetic field, the core adapted to be received within the annular channel of the rotatable assembly. The stationary assembly includes a bearing. centrally located on the support. for supporting the rotatable assembly for rotation about the axis.
Erdman David M.
Harms Harold B.
Company General Electric
Craig Wilson And Company
LandOfFree
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