DEVICE TO INCREASE WHEEL-RAIL ADHESION OF LOCOMOTIVE DRIVING WHEELS Russian patent published in 2006 - IPC B61C15/08 

FIELD: railway transport.

SUBSTANCE: invention relates to devices aimed at increasing locomotive traction force owing to increase of wheel-rail adhesion. Proposed device consists of dc traction motors with armatures and series field windings, wheelsets mechanically coupled with traction motors, traction generator whose armature is connected to electric motors, potential comparator unit connected to traction electric motors in points of connection of armatures and field windings, generator field system channel and slipping relay electrically coupled with potential comparator unit and generator field system channel. Device contains short-circuited electric circuit formed by wheelsets connected through sliding contacts to points of connection of armatures and field windings of traction electric motors, and rails, and slipping relay is provided with operation delay. Sliding contacts and wheelsets are provided with electric insulation from other structural members of locomotive bogie. This makes it possible to act by current onto zones of contact of slipping drive wheelset and rails to increase adhesion of wheels and rails.

EFFECT: prevention of slipping without reduction of locomotive traction force.

3 dwg