Egr System Diagram; Ddec Iv Components - Detroit Diesel Series 60 EGR Technician Manual

SERIES 60 EGR TECHNICIAN'S MANUAL
2

DDEC IV COMPONENTS

The primary purpose of the EGR system is to reduce engine exhaust gas emissions in accordance
with EPA regulations by allowing a percentage of the exhaust gases to remix with the air coming
into the intake manifold. Engine exhaust gases will dilute the incoming air by displacing some of
the oxygen in the air being supplied through the intake manifold. Less oxygen results in a slower
fuel burn which reduces the peak cylinder temperature permitting reduced nitrogen oxides (NOx)
emissions. Figure 2-1 illustrates how the components of a EGR system function.
Figure 2-1 EGR System
2-1
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION