US 12,081,085 B2
Method for sizing a rotor with a non-through shaft, associated rotor and motor-compressor set
Lionel Durantay, Frouard (FR); Clement Biri, Champigneulles (FR); and Christophe Galmiche, Toul (FR)
Assigned to GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwickshire (GB)
Filed by GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwickshire (GB)
Filed on Apr. 1, 2021, as Appl. No. 17/220,869.
Claims priority of application No. 20315095 (EP), filed on Apr. 1, 2020.
Prior Publication US 2021/0320543 A1, Oct. 14, 2021
Int. Cl. H02K 17/16 (2006.01); H02K 1/22 (2006.01); H02K 17/00 (2006.01); F04B 35/04 (2006.01); G10K 11/162 (2006.01); H02K 1/30 (2006.01); H02K 15/00 (2006.01)
CPC H02K 17/168 (2023.05) [H02K 1/22 (2013.01); H02K 17/00 (2013.01); H02K 17/16 (2013.01); H02K 17/165 (2013.01); F04B 35/04 (2013.01); G10K 11/162 (2013.01); H02K 1/30 (2013.01); H02K 15/0012 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A rotor for an electrical machine with a non-through shaft intended to drive a transmission line being formed by the rotor and a transmission shaft, the rotor comprising:
two half-shafts enclosing a cylindrical magnetic mass, by means of two short circuit disks, characterized in that the cylindrical magnetic mass comprises at least two adjacent identical cells, the at least two adjacent identical cells being arranged in a periodic repetition along a length of the cylindrical magnetic mass, wherein each cell (i) includes at least two circular elements each made of a magnetic material having a Young's modulus value and a density value with a thickness and a diameter, the Young's modulus value and the density value of a first magnetic material of a first circular element of the at least two circular elements being different from the Young's modulus value and the density value of a second magnetic material of a second circular element of the at least two circular elements and (ii) is configured to prevent a propagation of metadamping in the rotor.