CENTRAL BOGIE SWING SUSPENSION OF FREIGHT WAGON Russian patent published in 2008 - IPC B61F5/12 

FIELD: transportation.

SUBSTANCE: suspension consists of set of springs (2), bolster (1) and frictional wedge-type shock absorber. Cleat wedges (13) are installed at acute angles downwards between vertical supports (10) on lateral ends of bolsters, and inclined supports (11), on the outer surfaces of vertical walls of the central opening of the side frame. Angle "α" between the inclined surface of the cleat wedge and its vertical surface is approximately equal to the friction angle of the material of the interacting pairs: cleat wedge, side frame, bolster.

EFFECT: increased cohesion bogie in plan view and improvement of its dynamic properties.

3 cl, 4 dwg