HIGH-RPM ASYNCHRONOUS ENGINE Russian patent published in 2018 - IPC H02K17/16 H02K1/22 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to the designs of high-rpm asynchronous engines. Rotor of the high-speed induction motor is made massive, with grooves on the outer surface of the massive rotor, in which short-circuited winding in the form of rods is laid, which are galvanically connected at the ends of the rotor by rotating short-circuiting copper disks. In the central part of the rotor, a boring is made, in which a cylindrical hollow copper bushing is placed. Bore diameter D_BORE, as well as the outer diameter of the copper sleeve D_OUT and its inner diameter D_INN are chosen from the following conditions: D_BORE≤D₀, where D₀ – part of the magnetic circuit of the rotor outside of the magnetic flux, D_OUT=D_BORE, D_INN<D_BORE. Maximum thickness of the copper sleeve in the bore is chosen from the condition t=0.5⋅(D_OUT – D_INN). From both ends of the rotor, the copper sleeve is galvanically connected to rotating short-circuiting disks and with rods in the grooves of the rotor.

EFFECT: increase in current and MMF, induced by a flux of mutual induction.

1 cl, 3 dwg