An energy absorption system for a railcar having an elongated sill with front and rear stops defining a pocket therebetween. To facilitate use of known railcar structures, the energy absorption system can be used in combination with a railcar also having a sill with center stops disposed between the front and rear stops. A coupler having a head portion and a shank portion is arranged in operable combination with the energy absorption system. The energy absorption system also includes a first cushioning assembly positioned in the sill pocket. A first follower is urged toward and engageable with the front stops under the influence of the first cushioning assembly and is operably engageable with a free end of the shank portion of the coupler. A second cushioning assembly is positioned in generally axial alignment with first cushioning assembly. A second follower is positioned and normally urged by the energy absorption system toward and configured to engage with the center stops. An axially elongated yoke encompasses the first and second cushioning assemblies, terminates in an open forward end, and is coupled to the shank portion of the coupler. The first and second cushioning assemblies act in series relative to each other to absorb and cushion impact forces directed against them when the energy absorption system operates in a buff direction. Advantageously, the second follower acts in concert with the center stops and the second cushioning assembly to minimize excessive system cycles while better dissipating train action energy when the energy absorption system operates in a draft direction.

Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.

Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.

A modern scenic passenger railcar system is disclosed. The railcar system incorporates design and safety features of modern freightcars and modern passenger scenic railway cars. The railcar system incorporates a center beam with a square cross section as well as specialized crash posts with its frame. This results in enhanced safety and crashworthiness. The railcar system also incorporates cross members for absorbing and distributing shock and mechanical stress on the railcar system during use, by withstanding torsion and shear forces on the frame. This results in improved mechanical integrity of the frame and the railcar system overall.

A railcar comprising: a plurality of truck assemblies, each truck assembly having at least one wheel an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes a top wall, a pair of side sections joined to the top wall by a pair of upper curved sections, bottom sections coupled to the side sections through curved connecting sections, wherein the center sill includes an upwardly extending stiffening longitudinal rib centered within the top wall.

A railcar comprising: a plurality of truck assemblies, each truck assembly having at least one wheel an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes a top wall, a pair of side sections joined to the top wall by a pair of upper curved sections, bottom sections coupled to the side sections through curved connecting sections, wherein the center sill includes an upwardly extending stiffening longitudinal rib centered within the top wall.

Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.

Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.

Some embodiments of the present disclosure provide a chassis component of a railway vehicle, and a railway vehicle. The chassis component includes two lower boundary beams provided at an interval and a sleeper beam provided between the two lower boundary beams. The sleeper beam includes: a web structure; a center pin, connected with a bogie of a railway vehicle; and a mounting frame, connected with the web structure, the center pin being provided on the mounting frame, the mounting frame including a plurality of vertical plates, and the plurality of vertical plates being provided at an interval along an outer wall surface of the center pin. The technical solution of the present disclosure can solve the problem in the related art of insufficient connecting strength of a center pin and a web structure of a sleeper beam.

A floor section for an insulated railcar includes a floor plate and a composite section coupled to the floor plate. The composite section includes a plurality of composite beams aligned parallel to one another. Each composite beam of the plurality of composite beams includes an inner core and an outer material surrounding the inner core. The inner core includes an insulating material and is configured to support the outer material. An upper surface of each composite beam of the plurality of composite beams, which extends along a length of the composite beam, is coupled to an underside of the floor plate.