Scientists from the Russian University of Transport have received a patent for a traction electric motor with an improved cooling system. The development is designed to prevent overheating of the armature and commutator, which increases the reliability and service life of motors in operation.

The electric motor design includes an air duct with a box through which cooling air enters. Engineers installed spiral-shaped fins on the side of the box facing the commutator. They are located radially from the upper edge of the box tangentially to the surface of the armature commutator.

As noted in the patent, this shape and arrangement of the fins provides more efficient cooling and prevents motor overheating during long-term operation. The new technical solution can be applied in traction electric motors for railway transport and other machines where intensive cooling is required.