Patent ID: 11888365
Assignee: GE ENERGY POWER CONVERSION TEHCNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The squirrel-cage rotor according to claim 12, wherein the end of the conductor bar comprising:
a flat section forms a recess,
a flexible strip being inserted into said recess and comprising three segments,
a first and a second segments being inserted into the recess so as to exert a radial pre-stress to bring the outer periphery of the end of the bar into contact with the conductor element, one end of the first segment bearing against a bearing face of the end located at the end of the flat section opposite a plug screwed into a tapping located opposite the magnetic mass of the conductor element or of the compaction element,
the third segment of the flexible strip being housed in a space between the end of the bar and the plug, one end of the third segment being housed in a groove in the through-hole located opposite the magnetic mass and being pinched by the screwed plug, the flexible inclined segment being deformed in an axial direction by the plug screwing operation so as to exert an axial pre-stress on the bearing face of the conductor bar to limit the displacement of the conductor bar in the axial direction and so as to prevent the bar from rotating about itself.