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High-efficiency wheel-motor utilizing molded magnetic flux channels with transverse-flux stator
   
Document Number
US Patent 7492074
Issued Date
February 17, 2009
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Abstract
A motor including a mounting shaft having a hollow channel and a bearing attached to each end, a cylindrical hub having a hollow core for the mounting shaft, and plural rows of plural Molded Magnetic Flux Channels with a hollow core and a channel forming a U-shaped recess and mounted the surface of the hub, each row corresponding to a motor phase. Each magnetic flux channel forms two pole pieces divided by the channel. The motor also includes plural phase windings, one passing through each row of plural Molded Magnetic Flux Channels, a rotating drum having plural rows of permanent magnets on an inner surface, each row pair corresponding to and aligned with one of the plural rows of Molded Magnetic Flux Channels. The rotating drum connected with the bearing, and drive electronics for driving the plural phase windings, wherein the plural Molded Magnetic Flux Channels increases torque and motor efficiency.
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Number of Claims:
24
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Published
February 17, 2009
Application Number
11/731,427
Filed
March 30, 2007
US Classification
310/265   310/216 310/218
Int'l Classification
H02K   1/00   (20060101)  
Examiner
USPTO Field of Search
310/43   310/44   310/43   310/44   310/254   310/265  
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