Most railroads use track circuits to determine which sections of track are occupied by trains. These devices are actually fairly simple in design, and have been in use since 1872. … Continue reading
Braking Mechanisms When a braking force is applied to stop the cars, the force must be transmitted to something other than the cars, for example, to the rails. The braking … Continue reading
A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. In rolling stocks, scroll compressor is used for HVAC … Continue reading
A buffer stop or bumper is a device to prevent railway vehicles from going past the end of a physical section of track. The design of the buffer stop is dependent in part upon the … Continue reading
In mechanics terms, a bogie is a frame work which carrying wheels attached to coaches. The bogie, or truck as it is called in the US, comes in many shapes … Continue reading