Patent ID: 8040002
Filing Date: 2011-10-18
Classification: H02K

Abstract:
1. A ventilated rotor of a high-power turbogenerator for the production of electricity, comprising: a shaft extending along an axis; a plurality of axial slots provided in the shaft; a plurality of conductor bars arranged at least partly in the axial slots; a plurality of axial channels suitable for ventilating the conductor bars; a plurality of subslots each arranged below one of the axial slots to distribute a ventilating gas; a plurality of axial portions provided along each of the axial channels and travelled over by respective ventilating gas flows; and at least one radial channel provided for directly conveying the ventilating gas from the subslot to an outer surface of the rotor the and arranged between two consecutive adjacent axial portions of the axial channels; the radial channel intersecting the axial channels and isolated therefrom by a series of occlusions so as to concentrate the ventilating action solely in areas immediately adjacent to the radial channel.