PRE-DEFORMED ROTORS FOR CONTROLLING THE GAP BETWEEN THE MAGNET AND THE STATOR IN AXIAL FLOW MACHINES Russian patent published in 2021 - IPC H02K23/54 H02K1/27 H02K15/03 H02K21/24 

FIELD: electrical engineering.

SUBSTANCE: technical result is achieved due to the preliminary deformation of the rotor elements prior to assembly. The first rotor plate (406a) is engaged with the rotor shaft (408). The first magnet (102a) is attached to the first rotary plate and has a first surface (1102), orthogonal to the direction of magnetisation of the first magnet. The first rotary plate and the first magnet are configured and positioned so that if they are separated from all other magnetic field-forming components, the distance between the first plane crossing the first point (702) on the first surface (1102), wherefor the axis of rotation is a normal, and the second plane crossing the second point (704) on the first surface, wherefor the axis of rotation is a normal, is substantially greater than zero. The second magnet (102b) is attached to the second rotary plate (406b) so that the first magnetic flux is formed in the gap (1002) between the first and second magnets. The rotor plates (406a, 406b) are positioned so that the first magnetic flux leads to the distance between the first and second planes being substantially equal to zero. The stator (104) is configured to selectively form a second magnetic flow interacting with the first magnetic flow so as to force the rotor shaft (408), the first rotor plate (406a), and the first magnet (102a) to rotate synchronously.

EFFECT: reduction in the weight and size indicators.

12 cl, 15 dwg