A rail maintenance vehicle includes a frame, a workhead, an actuator, a pilot valve, and a throttling valve. The frame includes wheels that travel along rails. The actuator extends and retracts the workhead with respect to the frame. The pilot valve receives a fluid and controls the flow of the fluid to at least one output. The throttling valve adjusts a pressure of the fluid at an output relative to a pressure of the fluid at an input. The pilot valve and the throttle valve are coupled such that the fluid travels through the pilot valve and the throttling valve to cause the workhead to be extended or retracted.

An enclosure (10) has an inner space in which a rectangular parallelepiped shaped device unit (6) is storable, and has a side surface with an opening (20) for insertion of the device unit (6). A mounting frame (11) is a flat plate facing the opening (20) and disposed in the enclosure (10) on the opposite side of the enclosure (10) with respect in the opening (20). A guide unit includes a slide rail (12) extending from the mounting frame to the opening, and guides the device unit (6) between the opening (20) and the mounting frame (11) in a state in which the guide unit holds the device unit (6) in the Y-axis direction.

An enclosure (10) has an inner space in which a rectangular parallelepiped shaped device unit (6) is storable, and has a side surface with an opening (20) for insertion of the device unit (6). A mounting frame (11) is a flat plate facing the opening (20) and disposed in the enclosure (10) on the opposite side of the enclosure (10) with respect in the opening (20). A guide unit includes a slide rail (12) extending from the mounting frame to the opening, and guides the device unit (6) between the opening (20) and the mounting frame (11) in a state in which the guide unit holds the device unit (6) in the Y-axis direction.

A rail maintenance vehicle includes a frame, a workhead, an actuator, a pilot valve, and a throttling valve. The frame includes wheels that travel along rails. The actuator extends and retracts the workhead with respect to the frame. The pilot valve receives a fluid and controls the flow of the fluid to at least one output. The throttling valve adjusts a pressure of the fluid at an output relative to a pressure of the fluid at an input. The pilot valve and the throttle valve are coupled such that the fluid travels through the pilot valve and the throttling valve to cause the workhead to be extended or retracted.

A rail maintenance vehicle includes a frame, a workhead, an actuator, a pilot valve, and a throttling valve. The frame includes wheels that travel along rails. The actuator extends and retracts the workhead with respect to the frame. The pilot valve receives a fluid and controls the flow of the fluid to at least one output. The throttling valve adjusts a pressure of the fluid at an output relative to a pressure of the fluid at an input. The pilot valve and the throttle valve are coupled such that the fluid travels through the pilot valve and the throttling valve to cause the workhead to be extended or retracted.

The present disclosure relates to an electric control leveling valve for a vehicle, comprising: a vehicle height variation detection device, which is used for detecting a height variation of a vehicle body of the vehicle and generating a height variation electrical signal characterizing the height variation of the vehicle body; a control device, which generates a corresponding valve control command based on the height variation electrical signal; and a valve device, which is in gaseous coupling to a secondary suspension system of the vehicle and adjusts air mass of the secondary suspension system based on the valve control command. The present disclosure further relates to a corresponding vehicle, comprising such an electric control leveling valve. In some embodiments, the control can be made more flexible and active to facilitate diagnosis of faults of the electric control leveling valve, so that the valve can be replaced in time.

The present disclosure relates to an electric control leveling valve for a vehicle, comprising: a vehicle height variation detection device, which is used for detecting a height variation of a vehicle body of the vehicle and generating a height variation electrical signal characterizing the height variation of the vehicle body; a control device, which generates a corresponding valve control command based on the height variation electrical signal; and a valve device, which is in gaseous coupling to a secondary suspension system of the vehicle and adjusts air mass of the secondary suspension system based on the valve control command. The present disclosure further relates to a corresponding vehicle, comprising such an electric control leveling valve. In some embodiments, the control can be made more flexible and active to facilitate diagnosis of faults of the electric control leveling valve, so that the valve can be replaced in time.

A method for turning robots at an intersection of tracks. The robot moves in a first motion mode to reach a first position at the intersection. The robot turns over a corner of the intersection that includes continuous tracks connecting a vertical track and a horizontal track, whereby reaching a second position at the intersection. The robot moves in a second motion mode towards a designated direction.

A method for turning robots at an intersection of tracks. The robot moves in a first motion mode to reach a first position at the intersection. The robot turns over a corner of the intersection that includes continuous tracks connecting a vertical track and a horizontal track, whereby reaching a second position at the intersection. The robot moves in a second motion mode towards a designated direction.

The present invention relates to a fender, bogie, train, track and methods. The fender according to the invention comprises: a support surface provided on the underside during use; an inner pressure chamber provided in or on the support surface; a feed arranged in the pressure chamber for feeding a fluid; a first rim present round the inner pressure chamber, wherein at least a part of the rim is flexible; and a second rim arranged round the first rim such that a pressure chamber is created between two adjacent rims.