Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-01-11
2005-01-11
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S043000, C310S216006, C310S216055
Reexamination Certificate
active
06841908
ABSTRACT:
Stator cores for a homo-polar magnetic bearing, wherein toothed ends of stator cores around a rotor form N poles and S poles adjacent in the axial direction, and the method of manufacturing them. The stator core10is provided with protrusions11of adjacent N and S poles extended circumferentially so as to be in contact with or in close proximity to each other, and is composed of U-shaped laminated steel sheets interleaved with an insulating material, of which the center side is open when viewed from the centerline side. In addition, the core is composed of a first yoke, a second yoke and a stem unit that is a magnetic body placed and fixed between the yokes, and at least the stem unit is composed of a magnetic material powder, solidified in resin.
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European Search Report for EP03029453.2, dated Feb. 23, 2004.
Hasegawa Kazumitsu
Kuwata Gen
Ozaki Shin-ichi
Sugitani Noriyasu
Takahashi Toshio
Aguirrechea J.
Giffin & Szipl, P.C.
Ishikawajima-Harima Heavy Industries Co. Ltd.
Nguyen Tran
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