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D. Cooling System :
Cooling System Schematic Layout :
Description :
The above figure gives the coolant flow circuit with
the components. The coolant flow is controlled by
the thermostat
(For details refer Thermostat in
next section).
In addition to the Cylinder head and
block, the coolant also circulates through Oil
cooler, HVAC heater coil and EGR Cooler
.
An auxiliary coolant tank is provided to
compensate for the drop in coolant level. In
addition there is a de-gassing line and a vent line
connected to it. These help in maintaining the
system pressure created by expansion and
contraction of the coolant.