Workshop Manual

EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE

11.1 DESCRIPTION AND OPERATIO N OF TURBOCHARGER AND RELATED

PARTS

Compression of air in the turbocharger causes an air mass to ﬂow into the combustion chamber.

The turbocharger consists of a turbine and a compressor which are attached to a shaft. The exhaust

gas ﬂows to the turbine wheel and causes it to turn. This turning motion is transmitted to the shaft

and the compressor impeller. The intake air from the air ﬁlter is compressed by the compressor

impeller and ﬂows over a charge air pipe to the charge air cooler. The compressed air is cooled in

the charge air cooler, permitting a more dense charge of air to be delivered to the engine, and

therefore, engine output is increased. The charge air then passes from charge a ir cooler into the

intake manifold. The turbocharger is mounted on the exhaust outlet ﬂange of the engine exhaust

manifold.The turbocharger is mounted on the exhaust outlet ﬂange of the engine exhaust manifold.

The advantages are as follows:

□ Increases the engine performance and torque

□ Reduces fuel consumption compared to a similarly powered naturally aspirated engine

□ Reduces emissions.

All information subject to change without notice.