Doosan DL06 - Page 143

DL06K Interim Tire-4 Diesel Engine Disassembly and Reassembly of Major Components
141
3.6.5. HC dosing metering unit, MU
HC supply device is supplying HC fuel to exhaust pipe to initiate DPF regeneration.
It’s consists of fuel pressure sensor, shut off valve which controls the amount of fuel
spayed and fuel spraying valve
.
< HC (diesel) injection system overview diagram >
EK4OM027
Metering unit
(MU)
Fuel tank
Injection
pump
Fuel filter
Actuator
Sensor
Temperature
sensor
Temperature
sensor
Temperature
sensor
Injection unit
(IU)
Cooling water
Differential
pressure sensor
Entry pressure/temperature
Shut-off valve
Injection valve
EK4OM028
HC (diesel) entry
HC (diesel) exit
< HC (diesel) supply unit >