Detroit Diesel EPA07, Workshop Manual

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EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE
11.1 DESCRIPTION AND OPERATION OF TURBOCHARGER AND RELATED
PARTS
Compression of air in the turbocharger causes an air mass to fl ow into the combustion chamber.
The turbocharger consists of a turbine and a compressor which are attached to a shaft. The exhaust
gas
fl ows 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 fi lter is compressed by the compressor
impeller and fl ows 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 air cooler into the
intake manifold. The turbocharger is mounted on the exhaust outlet
fl ange of the engine exhaust
manifold.The turbocharger is mounted on the exhaust outlet fl ange 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.
DDC-SVC-MAN-0081 2010 Copyright © 2010 DETROIT DIESEL CORPORATION
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