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 double skin structure of a railcar bodyshell includes: a harmonica type structural portion in which a closed space is quadrangular when viewed from a car longitudinal direction; and a truss type structural portion which is located adjacent to the harmonica type structural portion and in which a closed space is triangular when viewed from the car longitudinal direction. A thickness reduced portion is formed in at least one of a region between a car width direction middle portion of a roof bodyshell and a car body circumferential direction middle portion of a cantrail. The thickness reduced portion having a bodyshell thickness that is made small by arranging an inner wall of the thickness reduced portion at a car exterior side of the inner wall of a region adjacent to the region in which the thickness reduced portion is formed.

A double skin structure of a railcar bodyshell includes: a harmonica type structural portion in which a closed space is quadrangular when viewed from a car longitudinal direction; and a truss type structural portion which is located adjacent to the harmonica type structural portion and in which a closed space is triangular when viewed from the car longitudinal direction. A thickness reduced portion is formed in at least one of a region between a car width direction middle portion of a roof bodyshell and a car body circumferential direction middle portion of a cantrail. The thickness reduced portion having a bodyshell thickness that is made small by arranging an inner wall of the thickness reduced portion at a car exterior side of the inner wall of a region adjacent to the region in which the thickness reduced portion is formed.

A train window structure and a train with the train window structure, the train window structure comprising: a train window frame; train window glass disposed in the train window frame; and a fastener penetrating through an inner side of the train window frame and disposed on a train body to fasten the train window frame, the axis of the fastener being parallel to a plane where the train window glass is provided. The fastener penetrates through the train window frame from an inner side of the train window frame and is screwed into the train body; the fastener is internally installed, thus reducing a gap between the adjacent train window structures, so that the train body is more aesthetically pleasing and wind resistance is lower.

A train window structure and a train with the train window structure, the train window structure comprising: a train window frame; train window glass disposed in the train window frame; and a fastener penetrating through an inner side of the train window frame and disposed on a train body to fasten the train window frame, the axis of the fastener being parallel to a plane where the train window glass is provided. The fastener penetrates through the train window frame from an inner side of the train window frame and is screwed into the train body; the fastener is internally installed, thus reducing a gap between the adjacent train window structures, so that the train body is more aesthetically pleasing and wind resistance is lower.

A deflector for use with railcars and containers. The deflector may be used to retrofit railcars and other container to reduce aerodynamic drag. The deflector may be collapsible for use with stacked containers.

A deflector for use with railcars and containers. The deflector may be used to retrofit railcars and other container to reduce aerodynamic drag. The deflector may be collapsible for use with stacked containers.

An ultrasonic airflow severing resistance reducing device for vehicles, including an airflow severing blade assembly, shock-absorbing installation assemblies, ultrasonic vibration components, and a rubber sealing ring assembly; a bottom portion of the airflow severing assembly is provided with an accommodating cavity; a top end of each shock-absorbing installation assembly is fixedly connected to an inner cavity wall of the accommodating cavity; a bottom end of each shock-absorbing installation assembly is formed with a fixed installation bottom portion; the ultrasonic vibration components are installed on the inner cavity wall; the rubber sealing ring assembly is arranged and installed on the airflow severing blade assembly. The ultrasonic vibration components drive the airflow severing blade assembly to generate high frequency ultrasonic vibration to sever airflow.

A rail vehicle includes a bogie, a bogie cavity in which the bogie is embedded, and a bogie cladding via which the bogie is at least partially clad, where the bogie cladding includes an opening, and where the bogie includes a flow-inhibitor arranged at the opening to reduce the inflow of air through the opening into the bogie cavity in order to reduce the inflow of air through the opening into the bogie cavity in an economical manner.

A rail vehicle includes a bogie, a bogie cavity in which the bogie is embedded, and a bogie cladding via which the bogie is at least partially clad, where the bogie cladding includes an opening, and where the bogie includes a flow-inhibitor arranged at the opening to reduce the inflow of air through the opening into the bogie cavity in order to reduce the inflow of air through the opening into the bogie cavity in an economical manner.