RAIL VEHICLE RUNNING GEAR BOGIE Russian patent published in 1995 - IPC

FIELD: railway transport. SUBSTANCE: bogie has side frames resting with their end parts on two wheelsets, overspring beam resting on side frames through spring suspension and friction vibration dampers with friction wedges, each provided with two friction surfaces. Some surfaces are tilted relative to vertical and are placed in contact with inclined surfaces of overspring beam intersecting, when extended, under overspring beam. Other surfaces of friction wedges and friction surface of friction plates of side frames in contact with wedge surface are also inclined relative to vertical and intersect, when extended, under overspring beam. EFFECT: enhanced operation. 3 dwg