ENGINE SYSTEMS

TM 9-2320-279-20-1

Vehicle Operation Systems (Cont)

1-16.

SYSTEMS.

a. Air Intake System. (fig. 1-10) The air

intake system consists of a dry type air cleaner (1),

turbocharger (2), engine blower (3), and an

aftercooler (4). Engine exhaust gases flow through

the turbocharger (2) driving a turbine wheel. A

compressor wheel on the opposite end of the

turbine wheel shaft rotates and draws in fresh air

through the air cleaner (1), compresses the air and

delivers it to the engine blower (3). Air from the

engine blower (3) flows through the aftercooler (4)

which cools the air before it is delivered to the

e n g i n e cylinders.

Figure 1-10. Air Intake System

b. Fuel System. (fig. 1-11) Fuel drawn from

the fuel tank (1) passes through the supply line (2)

to a fuel-water separator (3), fuel pump (4), and

secondary filter (5) to the engine fuel injectors (6).

Surplus fuel from injectors is returned to the fuel

tank (1) through the return line (7). The fuel-water

separator removes water and large solid particles

from the fuel. The finer particles are removed by

the secondary filter (5) before they can enter the

f u e l injectors.