Charge Air Mixer - Detroit Diesel Series 60 EGR Technician Manual

DDEC V COMPONENTS

Charge Air Mixer

The charge air mixer, see Figure 8-18, combines exhaust gases into the fresh air supply flowing
from the charge air cooler. Once the air has passed the charge air mixer, the intake manifold
diffuses the EGR exhaust gases evenly to each cylinder. DDEC sensors are mounted in the intake
manifold to monitor the air temperature and boost pressure.
Figure 8-18 Charge Air Mixer
Charge Air Cooler
The Charge Air Cooler (CAC), see Figure 8-19, is mounted in front of the cooling system radiator
and is connected to the turbocharger and intake manifold which permits a more dense charge of
air to be delivered to the engine. The compressed air leaving the turbocharger is directed through
the CAC before it flows into the CAC to be mixed with EGR exhaust gases before entering the
intake manifold. Cooling is accomplished by incoming air flowing past the tubes and fins of the
CAC. The compressed intake charge air flowing through the CAC core transfers the heat to the
tubes and fins where it is dissipated to the outside air.
8-20
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION