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US 2004/0000837 A1Published application
Electric rotary machine
AssigneeMinebea Co., Ltd.
InventorsYuzuru Suzuki, Kunitake Matsushita, Seiichi Matsuura
Life of this patent
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Abstract
An electric rotary machine is provided, in which a stator armature includes a stator ring that encloses a plurality of salient poles each with a pole tooth thereby forming a magnetic circuit, and in which the inner surface of the stator ring is made flat at portions to be in contact with the outer end faces of the pole teeth so that the stator ring can make surface-to-surface contact with the pole teeth without any air gap therebetween so as to secure a well-balanced magnetic circuit.
Claims7
An electric rotary machine, in which a stator comprises:
- a plurality of salient poles each including a pole tooth;
- and
- a stator ring adapted to enclose the salient poles thereby forming a magnetic circuit, said stator ring having its inner surface formed flat at portions each to be jointed to an outer end face of said pole tooth, whereby said stator ring makes surface-to-surface contact with each pole tooth.
Dependencies are inferred from the claim text.