An axle device is proposed including a linear shaft, at least one carriage, an electric drive for moving the carriage along the linear shaft, and a mechanical energy storage arrangement. The energy storage arrangement being able to assume a charging state for converting kinetic energy into potential when the carriage is decelerated along the linear shaft energy in an energy charging region, a storage state for storing the potential energy, and a discharging state for converting the stored potential energy into kinetic energy when the carriage is accelerated along the linear shaft in an energy releasing region.

An axle device is proposed including a linear shaft, at least one carriage, an electric drive for moving the carriage along the linear shaft, and a mechanical energy storage arrangement. The energy storage arrangement being able to assume a charging state for converting kinetic energy into potential when the carriage is decelerated along the linear shaft energy in an energy charging region, a storage state for storing the potential energy, and a discharging state for converting the stored potential energy into kinetic energy when the carriage is accelerated along the linear shaft in an energy releasing region.

A bogie of a rail vehicle includes a frame, which includes two box-shaped longitudinal beam main bodies and a transverse beam main body; a wheelset, which includes an axle box, an axle and wheels mounted at two ends of the axle; a drive system, which at least includes a gearbox and a drive motor. Practice has proved that the two axle boxes arranged on the inner sides of the two longitudinal beam main bodies can reduce a volume by about 10%, and reduce a weight by about 10% to 15%, which can further reduce air resistance, and realize energy saving and emission reduction. The longitudinal beam main body is located on an inner side of a wheel, a span of the two the longitudinal beam main bodies is reduced, and the torsional rigidity of the frame is reduced, which is beneficial to improving a curve passing capacity.

A bogie of a rail vehicle includes a frame, which includes two box-shaped longitudinal beam main bodies and a transverse beam main body; a wheelset, which includes an axle box, an axle and wheels mounted at two ends of the axle; a drive system, which at least includes a gearbox and a drive motor. Practice has proved that the two axle boxes arranged on the inner sides of the two longitudinal beam main bodies can reduce a volume by about 10%, and reduce a weight by about 10% to 15%, which can further reduce air resistance, and realize energy saving and emission reduction. The longitudinal beam main body is located on an inner side of a wheel, a span of the two the longitudinal beam main bodies is reduced, and the torsional rigidity of the frame is reduced, which is beneficial to improving a curve passing capacity.

A freight vehicle is provided including a set of road wheels configured for road traversal; a set of rail wheels configured for rail traversal, the set of rail wheels being separate from the set of road wheels; and an actuation system configured to modify a relative positioning of the set of road wheels and the set of rail wheels to facilitate operation of the freight vehicle according to a plurality of operational modes. The plurality of operational modes include a road traversal mode wherein the actuation system causes the set of road wheels to contact a road and a rail traversal mode wherein the actuation system causes the set of rail wheels to contact a rail.

A freight vehicle is provided including a set of road wheels configured for road traversal; a set of rail wheels configured for rail traversal, the set of rail wheels being separate from the set of road wheels; and an actuation system configured to modify a relative positioning of the set of road wheels and the set of rail wheels to facilitate operation of the freight vehicle according to a plurality of operational modes. The plurality of operational modes include a road traversal mode wherein the actuation system causes the set of road wheels to contact a road and a rail traversal mode wherein the actuation system causes the set of rail wheels to contact a rail.

A bogie of a rail vehicle includes a frame, which includes two box-shaped longitudinal beam main bodies and a transverse beam main body; a wheelset, which includes an axle box, an axle and wheels mounted at two ends of the axle; a drive system, which at least includes a gearbox and a drive motor. Practice has proved that the two axle boxes arranged on the inner sides of the two longitudinal beam main bodies can reduce a volume by about 10%, and reduce a weight by about 10% to 15%, which can further reduce air resistance, and realize energy saving and emission reduction. The longitudinal beam main body is located on an inner side of a wheel, a span of the two the longitudinal beam main bodies is reduced, and the torsional rigidity of the frame is reduced, which is beneficial to improving a curve passing capacity.

A bogie of a rail vehicle includes a frame, which includes two box-shaped longitudinal beam main bodies and a transverse beam main body; a wheelset, which includes an axle box, an axle and wheels mounted at two ends of the axle; a drive system, which at least includes a gearbox and a drive motor. Practice has proved that the two axle boxes arranged on the inner sides of the two longitudinal beam main bodies can reduce a volume by about 10%, and reduce a weight by about 10% to 15%, which can further reduce air resistance, and realize energy saving and emission reduction. The longitudinal beam main body is located on an inner side of a wheel, a span of the two the longitudinal beam main bodies is reduced, and the torsional rigidity of the frame is reduced, which is beneficial to improving a curve passing capacity.

An engine system includes a gearbox assembly that includes a housing having plural interconnected gears disposed between an engine side of the housing and an alternator side of the housing, a rotatable engine coupler connected with the engine side of the housing, the engine coupler configured to engage a rotatable shaft of an engine, and a rotatable alternator coupler connected with the alternator side of the housing, the alternator coupler configured to engage a rotor of a first alternator. The housing is configured to be positioned between the engine and the first alternator. The engine coupler is configured to engage the engine that is resiliently mounted in the powered system and the alternator coupler is configured to engage the first alternator that is rigidly mounted in the powered system to transfer rotation of the shaft of the engine to rotation of the rotor of the first alternator.

An engine system includes a gearbox assembly that includes a housing having plural interconnected gears disposed between an engine side of the housing and an alternator side of the housing, a rotatable engine coupler connected with the engine side of the housing, the engine coupler configured to engage a rotatable shaft of an engine, and a rotatable alternator coupler connected with the alternator side of the housing, the alternator coupler configured to engage a rotor of a first alternator. The housing is configured to be positioned between the engine and the first alternator. The engine coupler is configured to engage the engine that is resiliently mounted in the powered system and the alternator coupler is configured to engage the first alternator that is rigidly mounted in the powered system to transfer rotation of the shaft of the engine to rotation of the rotor of the first alternator.