| 主权项 |
1. An arrangement to ensure an air gap in an electrical machine, comprising:
an electrical machine with a stator arrangement and a rotor arrangement, the rotor arrangement rotating around a longitudinal axis, wherein: parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power, an air gap is defined by a distance between the parts of the rotor arrangement and the parts of the stator arrangement, the parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length, a cross section of the air gap changes along the certain length such that the air gap is not uniform in view to the referred certain length, the stator arrangement comprises a stator support structure and a lamination stack, the lamination stack is constructed to support a winding of the stator-coil, the stator support structure comprises support elements for a two-sided support of the lamination stack, the support elements being ring-shaped and connected via a single main bearing to the rotor arrangement, outer ends of the ring-shaped support elements are attached to a hollow cylindrical support element, the hollow cylindrical support element carries the ring-shaped lamination stack and the winding, a first side of the air gap is adjacent to a front endplate and a second side of the air gap is opposite to the first side, elements of the ring-shaped support element show different diameters in reference to the longitudinal axis, a first element of the ring-shaped support-element is located at the first side and shows a predefined first diameter, a second element of the ring-shaped support-element is located at the second side and shows a predefined second diameter, and the second diameter is smaller than the first diameter. |
