Patent ID: 9605656
Date: 2017-03-28
CPC Classifications: F03D,H02K,Y02E

Claim:
1. A rotor assembly for an electromechanical transducer, the rotor assembly comprising: a mechanical support structure; and a magnet arrangement having: (i) a first magnetic component part; and (ii) a second magnetic component part, wherein the first magnetic component part and the second magnetic component part are attached to the mechanical support structure and are arranged along an axial direction of the rotor assembly, wherein with respect to the axial direction of the rotor assembly; (a) a first cross section of the first magnetic component part has a first shape; and (b) a second cross section of the second magnetic component part has a second shape being different from the first shape and wherein the first magnetic component part and/or the second magnetic component part have a gradually varying cross sectional shape along an axial and radially outer circumferential direction of the first and the second shapes, wherein the first shape is positioned next to the second shape and wherein the first and the second shapes are both on the same parallel axis in the axial direction of the rotor assembly, wherein the first shape is a first geometrically irregular shape and the second shape is a second geometrically irregular shape and wherein the first magnetic component part and the second magnetic component part are separate magnetic pieces.