104 ENGINE COMPONENT AND LOCATION
Exhaust Gas Recirculation System
1.EGR Valve
2. EGR Cooler Inlet Pipe
3. EGR Cooler
4. Venturi
Nitrous oxide (NOx) emission levels increase with combustion temperature. The
primary function of the Exhaust Gas Recirculation (EGR) system is to cool exhaust
gas and send it back to the combustion chamber to lower the combustion temperature
thereby to reduce NOx emissions.
The mixer where the recirculated exhaust joins the inlet air, mounts at the front of
the inlet manifold for the conventional chassis engines.
5. Differential Pressure Sensors
6. EGR Cooler Outlet Pipe
7. EGR Mixer
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