| US 7,548,008 B2 | ||
| Electrical machine with double-sided lamination stack | ||
| Patrick Lee Jansen, Scotia, N.Y. (US); James Michael Fogarty, Schenectady, N.Y. (US); Bharat Sampathkumaran Bagepalli, Niskayuna, N.Y. (US); Aniruddha Dattatraya Gadre, Rexford, N.Y. (US); Ralph James Carl, Jr., Clifton Park, N.Y. (US); James Patrick Francis Lyons, Saratoga Springs, N.Y. (US); Jivtesh Garg, Cambridge, Mass. (US); Ronghai Qu, Clifton Park, N.Y. (US); and Fulton Jose Lopez, Clifton Park, N.Y. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Nov. 14, 2006, as Appl. No. 11/559,509. | ||
| Application 11/559509 is a continuation in part of application No. 10/951329, filed on Sep. 27, 2004, granted, now 7,154,192. | ||
| Application 10/951329 is a continuation in part of application No. 10/951335, filed on Sep. 27, 2004, granted, now 7,154,193. | ||
| Prior Publication US 2007/0103027 A1, May 10, 2007 | ||
| Int. Cl. H02K 1/22 (2006.01) | ||
| U.S. Cl. 310—266 [310/254; 310/258] | 9 Claims |
| 1. A ship propulsion motor comprising:
at least one rotor with an inner rotor core comprising a plurality of first permanent magnets and an outer rotor core comprising
a plurality of second permanent magnets; and
at least one double-sided stator with an inner stator side comprising a plurality of inner stator windings and an outer stator
side comprising a plurality of outer stator windings, the inner stator side and the outer stator side comprising a double-sided
lamination stack,
wherein the at least one double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core
of the motor, wherein the inner stator side and the outer stator side together with the inner rotor core and the outer rotor
core define at least two concentric air gaps, wherein the at least one double-sided stator and inner and outer rotor cores
are configured to create a closed magnet flux path that flows radially through the double-sided stator to each of said permanent
magnets and circumferentially in each of the inner and outer rotor cores and wherein the at least one rotor and at least one
double-sided stator cooperate to produce at least 7,000 horsepower (9,387 Kilowatts).
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