Truck for high speed rail cars

摘要

A truck for high speed rail cars, comprises an H-shape truck frame which included bearings for supporting each end of the axles of each wheel set from longitudinally extending leaf springs which are supported in brackets depending from the frame. In addition, air springs are supported on spring troughs which are supported by connecting rods that are pivotally connected between the frame and the troughs. The air springs on the troughs support a cradle which includes spaced upper and lower beam portions or chord members having one or more spaces enclosed therebetween which form auxiliary air spaces providing an additional air chamber for the air springs which are between the troughs and the upper chord member of the cradle.