INDUCTOR MACHINE Russian patent published in 1999 - IPC

FIELD: electrical engineering; alternating-current machines. SUBSTANCE: according to first design version, inductor machine has rotor and stator with magnetic core made in the form of U-shaped toothed stacks uniformly arranged over circumference and forming teeth in air gap. Stator has ring winding; air gap ensures following proportion: σ_δ ≥ σ_steel,σ_steel ≤ σ_steel, where σ_δ is air-gap density; σ_steel is flux density of rotor and stator steel teeth; σ_steel is saturation flux density of steel. According to second design version, stator core of machine is made in the form of multiturn solenoid with insulated outer surface of its turns; each turn has teeth on inner surface and yokes on outer surface; stator core functions at the same time as winding. In such design of machine, areas of zero flux density are eliminated on outer surfaces of stator stacks. EFFECT: improved winding utilization factor; improved power characteristics, reduced size and mass of machine. 18 cl, 9 dwg