Patent ID: 11863026
Assignee: ROLLS-ROYCE ELECTRICAL NORWAY AS
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 12:
13. A method of manufacturing a sleeved rotor of an electric machine, the method comprising:
providing a surface mount permanent magnet rotor;
providing a rotor sleeve comprising
filaments in a matrix material,
a first layer comprising one or more of glass, aramid, Polybenzoxazole, nylon and Dynema fiber wound filaments oriented at between ±30° and ±60° to an axis of the rotor, the filaments of the first layer having a first tensile modulus of elasticity, and
a second layer of wound carbon fiber filaments wound at approximately 90° to the axis of the rotor around an outer diameter of the first layer and having a second tensile modulus of elasticity higher than the first modulus of elasticity; and

sliding the sleeve over an outer diameter of the rotor.