Teledyne TSIO-360-RB, Maintenance Manual

Page: 122 / 206

14-2
14-1 INDUCTION SYSTEM DESCRIPTION
See Figure 11-1, “Induction and Exhaust System Schematic,” for induction system
components and induction air flow.
The induction system is mounted above the engine. It serves to carry induction air to the
individual cylinder intake ports.
Engine components through which air flows following the aircraft air inlet filter/alternate air
door are: turbocharger compressor, aftercooler, overboost/controller adapter, fuel servo
unit throttle area, balanced manifold, induction tubes and cylinder intake ports. Air flows
through these components in the order they are listed.
As the compressor wheel rotates high volume compressed intake air is discharged from
the compressor housing outlet.
The compressed air flows through induction tubing to the aftercooler. The cooled
compressed air flows from the aftercooler through induction tubes to the throttle
assembly.
Installed on the controller, overboost valve adapter assembly is an overboost valve that
will relieve excessive deck pressure in the event of wastegate/controller malfunction. Air
exiting the fuel metering/throttle assembly flows into the balanced induction manifold and
is distributed to the individual cylinder intake ports through induction tubes. Induction air
flows into the intake ports and is mixed with fuel from the injector nozzles where it enters
the cylinder as a combustible mixture when the intake valve opens.
Refer to the airplane manufacturer's Airplane Flight Manual (AFM) for alternate air door
operations.
14-2 OVERBOOST VALVE DETAILED DESCRIPTION.
The overboost valve consists of a housing, spring, valve head and aneroid bellows
assembly. The valve head is held in the closed position by the spring and aneroid
bellows. The overboost valve is set to open slightly above maximum deck pressure to
prevent damage in the event of a system malfunction.
FIGURE 14-2. OVERBOOST VALVE