TM 9-6115-730-10
200 kW TACTICAL QUIET GENERATOR SET
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THEORY OF OPERATION Continued
AIR INTAKE AND EXHAUST SYSTEM WITH TURBOCHARGER
The air intake and exhaust system consists of an air filter assembly, intake manifold, turbocharger, exhaust manifold and
muffler. Ambient air is drawn into the air filter assembly where it passes through the air cleaner element. Airborne dirt is
removed and trapped in the element. A restriction indicator, located on the air cleaner assembly housing, displays red when
the air cleaner element requires servicing. The inner air filter element retaining nut contains a second restriction indicator
that changes from green to red as air flow is restricted. Filtered air is drawn out of the air cleaner assembly through air intake
tubes to the turbocharger where it is forced through the radiator aftercooler coil. This pressurized air enters the intake
manifold to the combustion chambers where it is mixed with fuel from the injectors. When cold weather starting is required,
ether is injected into the air intake manifold to initiate combustion. When the engine is running, exhaust gases are released
into the exhaust manifold and then to the turbocharger. The exhaust gases drive the turbocharger forcing large amounts of
air into the intake manifold. After passing through the turbocharger, the exhaust gases are channeled into a muffler to
deaden the sound.
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