Doosan GL08K, Operation & Maintenance Manual, Page: 32 / 206

Technical Information - 26 -
2.3.16. Turbocharger

The exhaust gases of the engine are
passed through the turbine rotor of the
turbocharger.

Air compressor impeller mounted on the
same shaft draws in fresh air and delivers
it at a higher pressure to the cylinders.

The turbocharger is naturally air-cooled.

Lubrication of the main bearing is by oil
under pressure from the engine
lubricating system.
2.3.17. Intercooler

The intercooler is air to air type and has a large cooling fan capacity.

The intercooler life and performance depends on the intake air condition greatly.

Fouled air pollutes and clogs the air fins of intercooler.

As a result of this, the engine output is decreased and engine malfunction is occurred.

So you always check whether the intake air systems like air filter element are worn or polluted.

In order to maintain the heat transfer efficiency of the intercooler, it is necessary to clean it at
regular intervals.
C
5
3
2
B
E
4
1
A
D
ED4OM010
EG9OM025
Air/air intercooler with radiator
(combined radiator)
Air flow by cooling fan
Hot air by turbo charger
compressor
Cooled air to intake
manifold (max. 50 C)