ELECTROMAGNETIC WAGON RETARDER Russian patent published in 2017 - IPC B61K7/02 B61K7/12 

FIELD: electricity.

SUBSTANCE: when the wheel (16) enters the coverage area of electromagnetic wagon retarder, motion sensor 9 is triggered and signals are sent from its first and second terminals (8) and (10) to the inputs (7) and (11), activating the power supply (6) and auxiliary power supply (12). The latter supplies power to the magnetic bias field winding (14), creating the constant-direction magnetic flux, which passes over the wheel (16) and magnetizes the latter. Power supply (6) supplies the power to electrical windings (3), which create a traveling magnetic field, and its direction is opposite to the direction of wagon movement. The interaction between traveling magnetic field of electrical windings (3) and magnetized wheel (16) creates a braking force of the wheels (16).

EFFECT: using forces caused by interaction of the traveling magnetic field of electrical windings with magnetized wheel allows to avoid mechanical contact with retarder stationary parts at the wheel deceleration, resulting in an increase in the service life of the electromagnetic wagon retarder.

2 dwg