A running gear unit for a rail vehicle, having a running gear frame body. The frame body includes two longitudinal beams and a transverse beam unit providing a structural connection between the longitudinal beams, such that a substantially H-shaped configuration is formed. Each longitudinal beam has a suspension interface section associated to a free end section of the longitudinal beam and forming a primary suspension interface for a primary suspension device. Each longitudinal beam has a pivot interface section associated to the primary suspension interface section and forming a pivot interface for a pivot arm. The primary suspension interface is configured to take a total resultant support force acting in the area of the free end section when the frame body is supported on the associated wheel unit.

A running gear unit for a rail vehicle, having a running gear frame body. The frame body includes two longitudinal beams and a transverse beam unit providing a structural connection between the longitudinal beams, such that a substantially H-shaped configuration is formed. Each longitudinal beam has a suspension interface section associated to a free end section of the longitudinal beam and forming a primary suspension interface for a primary suspension device. Each longitudinal beam has a pivot interface section associated to the primary suspension interface section and forming a pivot interface for a pivot arm. The primary suspension interface is configured to take a total resultant support force acting in the area of the free end section when the frame body is supported on the associated wheel unit.

Disclosed is a frame for a bogie, comprising two side beams parallel to each other and a transverse beam connected to the middles of the side beams, wherein the middle of the transverse beam is provided with a traction pin hole, and an upper surface of the transverse beam is provided with a plurality of mounting seats for mounting a secondary suspension. The frame of the present invention is provided with a traction pin hole at the center of the transverse beam so that the transverse beam is connected to the bolster so as to bear a traction force, and a plurality of mounting seats for mounting the secondary suspension are arranged on an upper surface of the transverse beam, so that the secondary suspension can bear a rotation movement between the bogie and the vehicle body to improve curve passing capability of the vehicle.

Disclosed is a frame for a bogie, comprising two side beams parallel to each other and a transverse beam connected to the middles of the side beams, wherein the middle of the transverse beam is provided with a traction pin hole, and an upper surface of the transverse beam is provided with a plurality of mounting seats for mounting a secondary suspension. The frame of the present invention is provided with a traction pin hole at the center of the transverse beam so that the transverse beam is connected to the bolster so as to bear a traction force, and a plurality of mounting seats for mounting the secondary suspension are arranged on an upper surface of the transverse beam, so that the secondary suspension can bear a rotation movement between the bogie and the vehicle body to improve curve passing capability of the vehicle.

A ground rail transfer device includes: a support rail provided on the ground and used for unloading a vertical load of a bogie in a rail vehicle; a guide rail provided on the ground and used for driving the bogie to perform a rail transfer operation; and a transition plate provided on the ground and located between a first rail and a second rail which are different in a gauge; wherein a difference between the top surface height of the transition plate and the top surface height of the first rail is equal to a distance between a wheel rim vertex circle and a wheel tread of the rail vehicle.

The present invention relates to a bogie structure for a mountain railway car. The bogie structure is configured as follows: a traction motor for driving an axle of mountain railway car is installed on a car body to simplify the bogie structure and to minimized interference between the traction motor and other components constituting the bogie, and a first and a second bearing are respectively inserted and installed between a first and a second axle and a first and a second wheel, so that a first and a second wheel located in one side close to a turning center are rotated less than a first and a second wheel located in the other side opposite thereof and a traveling distance of the wheels located in the turning-centered side is generated corresponding to a length of a turning-centered side railway, whereby the mountain railway car is improved in traveling stability.

The present invention relates to a pneumatic suspension for a rail vehicle comprising a body and a bogie, said pneumatic suspension extending between the body and a chassis of the bogie, comprising: at least one secondary pneumatic suspension element for vertically supporting the body on the chassis and capable of being supplied with compressed air at a supply pressure, and a pressure source, wherein it further comprises: a control unit, for each suspension element, a sensor connected to the command unit and able to measure a height between the chassis and the body at the level of said suspension element, and for each suspension element, a solenoid valve connecting said suspension element to the pressure source, said solenoid valve being commanded automatically by an electric command signal, generated by the command unit as a function of the measured height(s).

The present invention relates to a pneumatic suspension for a rail vehicle comprising a body and a bogie, said pneumatic suspension extending between the body and a chassis of the bogie, comprising: at least one secondary pneumatic suspension element for vertically supporting the body on the chassis and capable of being supplied with compressed air at a supply pressure, and a pressure source, wherein it further comprises: a control unit, for each suspension element, a sensor connected to the command unit and able to measure a height between the chassis and the body at the level of said suspension element, and for each suspension element, a solenoid valve connecting said suspension element to the pressure source, said solenoid valve being commanded automatically by an electric command signal, generated by the command unit as a function of the measured height(s).

The present disclosure generally relates to a rail vehicle that includes a chassis and a rail clamp assembly coupled to the chassis. The rail clamp assembly includes a fixed central member and a pair of lugs each extending outwardly from opposing sides of the fixed central member. The rail clamp assembly further includes a pair of arms respectively coupled to the lugs to thereby provide respective pivot points to permit rotation of the arms about the pivot points. A pair of gripping tool assemblies are disposed at respective lower portions of the arms and are coupled to one another via a guide rod.

The present disclosure generally relates to a rail vehicle that includes a chassis and a rail clamp assembly coupled to the chassis. The rail clamp assembly includes a fixed central member and a pair of lugs each extending outwardly from opposing sides of the fixed central member. The rail clamp assembly further includes a pair of arms respectively coupled to the lugs to thereby provide respective pivot points to permit rotation of the arms about the pivot points. A pair of gripping tool assemblies are disposed at respective lower portions of the arms and are coupled to one another via a guide rod.