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US 4,228,375 AGranted
Device for bracing an air-gap winding
AssigneeKraftwerk Union Aktiengesellschaft
InventorsHeinrich Beermann, Dietrich Lambrecht
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AssigneeKraftwerk Union Aktiengesellschaft
InventorsHeinrich Beermann, Dietrich Lambrecht
Estimating the term…
Device for bracing an air-gap winding in a stator of an electric machine wherein individual winding bars are secured between a radially outer stack of stator laminations and a radially inner nonmagnetic support cylinder, includes spacer wedges disposed between respective pairs of the individual winding bars in circumferential direction, at least some of the spacer wedges being in the form of mounting wedges having dove-tailed extensions received and braced in corresponding recesses formed in the stack of stator laminations at the inner circumference thereof, and the remainder of the spacer wedges being in the form of tightening wedges having tangential bracing means includes at least one flexible tube subjectible to internal pressure, and radial bracing means similarly includes at least one flexible tube subjectible to internal pressure.
Device for bracing an air-gap winding in a stator of an electric machine wherein individual winding bars are secured between a radially outer stack of stator laminations and a radially inner nonmagnetic support cylinder, comprising spacer wedges disposed between respective pairs of the individual winding bars in circumferential direction, at least some of said spacer wedges being in the form of mounting wedges having dove-tailed extensions received and braced in corresponding recesses formed in the stack of stator laminations at the inner circumference thereof, and the remainder of said spacer wedges being in the form of tightening wedges having tangential prestressing bracing means comprising at least one flexible tube subjectible to internal pressure, and radial prestressing bracing means similarly comprising at least one flexible tube subjectible to internal pressure.
Dependencies are inferred from the claim text.