The muffler and the exhaust pipe are connected to
the turbocharger exhaust elbow (fig. 34) and provide a
path for engine exhaust gases to exit the generator set.
The muffler reduces the noise level of the engine
The discharge opening of the muffler is
covered by a hinged cap to prevent water from entering
the exhaust system when the generator is not operating.
Lets look at an example of an indoor installation.
After bolting the generator set to the concrete pad and
enclosing it in a shelter, you are about to vent the
exhaust system to the outside. You lift the exhaust cap
(fig. 3-4) and connect the gastight exhaust pipe to the
discharge opening. You then extend the pipe through
the wall (or roof) of the building in a route that includes
no obstructions and a minimum number of bends. If
you have arranged the pipe to slope away from the
engine, condensation will not drain back into the
cylinders. If the exhaust pipe has to be installed so that
loops or traps are necessary, place a drain cock at the
lowest point of the system. All joints must be perfectly
tight; and where the exhaust pipe passes through the
wall, you must take care to prevent the discharged gas
from returning along the outside of the pipe back into
the building. Exhaust piping inside the building must be
covered with insulation capable of withstanding a
temperature of 1500°F.
Figure 3-4.Exhaust and breather system.