Doosan DL06 - Emission Reduction System

DL06K Interim Tire-4 Diesel Engine Technical Information
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2.3.8. Emission reduction system
z Tier4 Interim DL06K engine has both oxidation catalyst system and exhaust
reduction system as an emission reduction system.
z Operating principle : The oxidation catalyst system reduces HC and CO in
exhaust gas and induces DBF temperature increase during HC injection to
regenerate exhaust particles in DPF and reduce exhaust. DPF (Diesel Particulate
Filter) collects harmful particles in diesel exhaust to prevent emission to the air,
and regenerate the collected particles by burning them to reuse the filter.
EL4OM008
Fuel return
Fuel entry
Temperature
sensor
Fuel tank
Injection
pump
Engine
exhaust
gas
Exhaust
manifold
(from engine)
Sensor
Temperature
sensor
Temperature
sensor
Actuator
Injection unit
(IU)
Engine CAN communication
Diagnosis CAN communication
Fuel filter
Metering unit (MU)
Differential
pressure sensor