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Rolling Stock Terms

This page will be continuously updated… Accelerometer A device that can measure acceleration generated by the movement of an object along an axis. Adhesion (Coefficient of) During rolling contact, the … Continue reading

Track Circuit

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 Systems

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

Scroll Compressor

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

Buffer Stop

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

Bogie

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