Patent ID: 8513841
Filing Date: 2013-08-20
Classification: B23K,F01D,F05D,H02K,Y10T

Abstract:
1. A rotor for a generator, the rotor comprising: a multiplicity of winding slots for accommodating a winding, the winding slots extending in the axial direction on the rotor and being circumferentially distributed; a plurality of separate rotor elements which are arranged one behind the other along a rotor axis, the rotor elements including connecting faces at which adjacent rotor elements abut and are welded to one another, forming circular weld seams which concentrically encompass a central gap with a predetermined gap axial width between every two adjacent rotor elements, the weld seams having a constant axial width substantially the same as the gap width; a widening cavity adjacent to each weld seam; wherein, on the outer circumference of each gap, the gap merges into the widening cavity; and wherein adjacent rotor elements comprise collar webs that are fused together and are not located in the multiplicity of winding slots.