4.2 Cooling water system
The cooling water system supplies the items that follow with cooling water:
•
Cylinder liner
•
Cylinder cover
•
Exhaust valve cages
•
Scavenge air cooler (SAC).
For the schematic diagrams, refer to section 13.1 Schematic diagrams - general.
The cooling water system has the engine connections as interface to the plant as follows (in
Figure 4-2 marked with a circle):
•
Connection 02 (cylinder cooling water inlet)
•
Connection 03 (cylinder cooling water outlet)
•
Connection 05 (cylinder cooling water drain outlet)
•
Connection 07 (SAC LT-cooling water inlet) (not shown)
•
Connection 08 (SAC LT-cooling water outlet) (not shown)
•
Connection 44 (Venting cylinder cooling water outlet).
The cooling water system has the parts that follow:
•
Automatic venting unit
The automatic venting unit (001) constantly releases unwanted air from the cooling water.
•
Cyclone separator
The cyclone separator (002) separates the air and the cooling water.
•
Temperature control valve
The temperature control valve (003) controls the temperature of the cooling water to the
cylinder liners. The temperature setpoint is related to the used fuel.
If the actuator of the valve is unserviceable, you can manually set the valve to a specified
position.
•
Booster pump
The booster pump (005) increases the pressure of the cooling water to the cylinder liners.
•
Vent valve
The vent valve (009) can be used manually to release unwanted air from the cooling
water, if the automatic venting unit (001) or the cyclone separator (002) do not operate
correctly.
X92DF
AA00-0000-00AAA-043A-A
Operation Manual Cooling water system
Winterthur Gas & Diesel Ltd.
- 80 - Issue 002 2020-08
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