Doosan DL06 User Manual

DL06K Interim Tire-4 Diesel Engine Maintenance of Major Components
174
5. Maintenance of Major Components
5.1. Cooling System
5.1.1. General descriptions and main data
This engine is a water cooling engine. Combustion heat from the combustion
chamber and heat of the engine oil are absorbed by coolant and released outside the
engine for normal operation of the engine.
Coolant supplied by the coolant pump is circulated in the oil cooler through the
coolant pipe to absorb heat from the oil, and flows into the coolant jacket and the
cooling route of the cylinder head of the cylinder block to absorb combustion heat.
Coolant that is absorbing heat from oil and combustion flows into the thermostat
through the coolant pipe. If the temperature of coolant is lower than the valve opening
temperature of the thermostat, coolant flows into the coolant pump. Otherwise,
coolant flows to the radiator. The radiator emits absorbed heat from coolant to cool
the water, and supplies the water to the coolant pump.
5.1.2. Specification
Item Specification
1. Water pump
Type Centrifugal type
Pumping speed 3,750 rpm
Supply volume Approx. 280 liters/min or higher
Pump head 18 m
Pump backpressure 1.79 bar or lower
2. Thermostat
Operating temperature 75 °C
Valve lift 9.5 mm
Operating temperature 75 ~ 90 °C
EK1OM072
Radiator
Thermostat
Water pump
Cylinder head
Cylinder block
EGR
cooler
EGR valve
Oil cooler
HC dosing
injector
Turbo charger actuator

Doosan DL06 Specifications

General

Brand	Doosan
Model	DL06
Category	Engine
Language	English