automatically once it has been started, In figure 2.1, the steam generator
is the part numbered 2.
2.5. AIR COMPRESSOR
An air compressor, such as the one shown in figure 2.4, compresses the
air used to operate much of the equipment on a dieselelectric locomotive.
Such equipment includes airbrake systems, reversers, electropneumatic
contactors, sanders, and window wipers. The compressor may be engine driven
either directly by belts from the main generator's shaft or through a
flexible coupling to it. The air compressor has a twocompression cycle.
Figure 2.4. Air Compressor.