专利名称：Dynamo-electric machine with prestressed
laminated stator component
发明人：Mihailo Starcevic申请号：US05/602187申请日：19750806公开号：US03988622A公开日：19761026
摘要：The laminated stator component of a dynamo-electric machine is prestressed insuch manner as to free the laminations from temperature- induced compressive stressesthat otherwise may result in displacement of the laminations. In particular, the statorlamination assembly is prestressed in tension, with respect to the cold condition, in anoutward direction, by an amount corresponding at least approximately to the differencein expansion between the laminations fixed in the stator frame and those freely expandedat the same temperature. The laminations are held continuously in tension, preferably ina radially outwards direction, in the stator frame or foundation, which is thus at leastpartly pre- compressed inwards, in such manner that under all practicable operatingtemperatures of the machine, no compressive stresses can occur in the laminations.
申请人：BBC BROWN BOVERI & COMPANY LIMITED
代理机构：Pierce, Scheffler & Parker
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