Air
System
Page
11-2
Exhaust
System
and Intake Manifold
DODGE
Turbo Diesel
Air
System
Air
System Flow
Air
is pulled into the engine from an air
filter.
Clean air
is
very important to the life of the engine. Ingested dust and
dirt
can
damage the
cylinders
very quickly.
• Caution: Make sure that a quality air cleaner is used and that It Is periodically replaced.
On turbocharged engines the flow is from the filter to the turbocharger, and then through the air
crossover
to the
manifold. From the intake manifold, air
is
forced into the cylinder and used for
combustion.
The exhaust
gases
flow
through the turbocharger to rotate the turbine and impeller, thereby utilizing exhaust energy to force more air into
the
cylinders.
The additional air provided by the turbocharger
allows
more fuel to be injected to
increase
the power
output from the engine.
Thus,
the power-to-weight ratio for the engine is
increased
significantly with the addition of
the turbocharger.
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