SUBMERSIBLE VALVE-INDUCTOR ELECTRIC MOTOR OF OPEN DESIGN Russian patent published in 2012 - IPC H02K29/00 H02K5/132 H02K1/06 

FIELD: electricity.

SUBSTANCE: electric motor comprises a body (1), where a stator yoke (2) is placed with explicit-pole teeth (3), excitation coils (4) from a winding wire with polyimide-fluoroplastic insulation. On a shaft (6) there is a rotor (7) mounted with similar teeth (8) without a winding by number by two teeth less than on the stator. Between the teeth (3) of the stator and teeth (8) of the rotor there is a non-magnet working gap (10), along which cooling sea water passes. To prevent contact corrosion of electric steels of packages of the stator, rotor, body and shaft, discs (11) from magnesium alloy are pressed onto free ends of the rotor shaft, and between the stator teeth there are tyre treads (5) pressed from the same alloy. Discs (11) and tyre treads (5) have a tight electric contract with packages of the rotor (7) and the stator (2).

EFFECT: higher reliability, operability, durability and energy characteristics of valve-inductor electric motors of open design by higher efficiency of electrochemical protection of inner active parts against contact corrosion with their submersion into sea aggressive water - electrolyte.

3 dwg