According to some embodiments, a railcar extension for extending the width of a railcar comprises: a top portion for attaching to a railcar support; a first side portion coupled to the top portion, the first side portion comprising two parallel transverse walls connected by a longitudinal wall all extending perpendicular from the top portion and the two transverse walls are for attaching to the railcar support; a second side portion coupled to the first side portion, the second side portion comprising two parallel transverse walls connected by a longitudinal wall all extending downward from the first side portion and the two transverse walls are for attaching to the railcar support, and wherein the second side portion pivots with respect to the first side portion to conform to the railcar support; and a bottom portion coupled to the second side portion, the bottom portion for attaching to the railcar support.

A double-deck rail vehicle and a vehicle body thereof are provided. An underframe (11) of the vehicle body comprises a lower-layer underframe (111), end underframes (112, 115), sealing plates (114, 116), and side underframes (118, 119); wherein the lower-layer underframe is provided with an underframe middle beam (1111); the end underframe is fixedly connected to the underframe middle beam by means of reinforcement middle beams (113, 117); the sealing plate is fixedly connected between the end underframe and the lower-layer underframe; and the side underframe comprises side beams (1181, 1191) of the side underframe that are integrated, and the side underframe is fixedly connected to the end underframe by means of the side beams of the side underframe. The vehicle body supplements the reinforcement middle beams capable of increasing the connection strength between the end underframe and the lower-layer underframe, and uses the integrated side beams of the side underframe. Therefore, the structure strength, rigidity and compression-resistant performance of the vehicle body can be enhanced, so that the safety of the double-deck rail vehicle can be improved, and a problem that a related double-deck vehicle body does not satisfy the requirements of America strength standard can be solved.

The present disclosure discloses a rail transport system. The rail transport system includes: a rail, where the rail is provided with an escape passage; and a rail vehicle, where the rail vehicle includes a vehicle body and a plurality of bogies, the plurality of bogies respectively movably straddles the rail, and the vehicle body is connected to the plurality of bogies and pulled by the plurality of bogies to travel along the rail; and the vehicle body includes a plurality of compartments hinged sequentially along a length direction of the rail, the plurality of compartments forms at least one compartment group, the compartment group includes three compartments hinged sequentially, and the bottom of each of only compartments that are located at two ends of the compartment group and that are of the three compartments is connected to the bogie. The rail transport system according to this embodiment of the present disclosure has advantages such as facilitation of evacuation of passengers in an emergency, low costs, small occupied space, small rail weight bearing, high stability, and flexible steering.

The present disclosure discloses a rail transport system. The rail transport system includes: a rail, where the rail is provided with an escape passage; and a rail vehicle, where the rail vehicle includes a vehicle body and a plurality of bogies, the plurality of bogies respectively movably straddles the rail, and the vehicle body is connected to the plurality of bogies and pulled by the plurality of bogies to travel along the rail; and the vehicle body includes a plurality of compartments hinged sequentially along a length direction of the rail, the plurality of compartments forms at least one compartment group, the compartment group includes three compartments hinged sequentially, and the bottom of each of only compartments that are located at two ends of the compartment group and that are of the three compartments is connected to the bogie. The rail transport system according to this embodiment of the present disclosure has advantages such as facilitation of evacuation of passengers in an emergency, low costs, small occupied space, small rail weight bearing, high stability, and flexible steering.

A railroad car including a plurality of penetration resistant and protective structures including a penetration resistant and protective underframe, penetration resistant and protective first end, second end, and center bulkheads, penetration resistant and protective first, second, third, and fourth side walls, and protective first and second roof hatches, all configured to protect internal cylinder assemblies, the pipes that communicate the gas from the cylinders of the cylinder assemblies, and the safety critical valves, regulators, and other equipment connected to such cylinders and pipes of the railroad car in an accident (such as a derailment, crash and/or roll-over).

A railroad car including a plurality of penetration resistant and protective structures including a penetration resistant and protective underframe, penetration resistant and protective first end, second end, and center bulkheads, penetration resistant and protective first, second, third, and fourth side walls, and protective first and second roof hatches, all configured to protect internal cylinder assemblies, the pipes that communicate the gas from the cylinders of the cylinder assemblies, and the safety critical valves, regulators, and other equipment connected to such cylinders and pipes of the railroad car in an accident (such as a derailment, crash and/or roll-over).

The present invention provides a rail vehicle. The rail vehicle includes: an underframe assembly, a side wall assembly, a vehicle roof assembly, and a vehicle end assembly. The underframe assembly includes a primary energy absorption structure and an underframe edge beam which are connected. The primary energy absorption structure has at least two energy absorbing cavities that are set at interval. The lower end of the side wall assembly is connected with the underframe assembly. The upper end of the side wall assembly is connected with the vehicle roof assembly. The vehicle end assembly includes an end energy absorption structure whose lower end is connected with the primary energy absorption structure, and upper end is connected with the vehicle roof assembly. By using the technical solution of the present invention, that is, the primary energy absorption structure of the underframe assembly, the vehicle roof assembly, and the end energy absorption structure which is installed between the vehicle roof assembly and the primary energy absorption structure form the overall energy absorbing structure at the end of the vehicle body structure, there is no need to add an independent energy absorbing component. The present invention improves impact energy absorbing performance of the vehicle without increasing the overall dimension of the vehicle body structure.

The present invention concerns a railway power car comprising: A body (12) extending in a longitudinal direction (X) and defining a technical room (22); and cabinets (15) accommodated in the technical room.

The power car comprises at least two rails (28) disposed on the floor, each of said rails extending in the longitudinal direction, an upper part (42) of each of said rails forming a first means of joining with a cabinet; each cabinet comprises at least one foot (56), said or each foot comprising a second means of joining (60, 62) capable of mating with the first means of joining of one of said rails, each first means of joining and each second means of joining being configured so that each cabinet can be fastened to said corresponding rail at an infinite number of positions along said rail.

The present invention concerns a railway power car comprising: A body (12) extending in a longitudinal direction (X) and defining a technical room (22); and cabinets (15) accommodated in the technical room.

The power car comprises at least two rails (28) disposed on the floor, each of said rails extending in the longitudinal direction, an upper part (42) of each of said rails forming a first means of joining with a cabinet; each cabinet comprises at least one foot (56), said or each foot comprising a second means of joining (60, 62) capable of mating with the first means of joining of one of said rails, each first means of joining and each second means of joining being configured so that each cabinet can be fastened to said corresponding rail at an infinite number of positions along said rail.

A railroad freight car has an underframe that includes a center sill and lateral cross-members such as bolsters, cross-bearers and cross-ties. Side sills run along the edges of the car. A floor sheet is welded to the center sill and side sills and above the cross-members. Floor stringers are welded to the top side of the floor sheet. A surface covering is mounted on top of the stringers. Thermal insulation may be installed between the surface covering and the floor sheets.