5.2 Group 2 - Cylinder
5.2.1 Cylinder liner
The cylinder liner is one of the primary parts of the engine. The cylinder liner is on the cylinder
jacket and holds the cylinder cover and the water guide jackets. The nuts and the elastic bolts hold
these parts together.
The surfaces of the cylinder liner and the cylinder jacket make a metallic seal. A non-hardening
compound is applied around the surface of the metallic seal to prevent leakage.
The antipolishing ring (001) is installed in the top part of the cylinder liner. The antipolishing ring
removes coke contamination at the piston crown during operation.
Fig 5-6 Cylinder - cooling water outlet (generic)
Legend
001 Exhaust valve cage 003 Cooling water outlet
002 Cylinder cover
Cooling water flows from the bottom water guide jacket to the top water guide jacket. Then the
cooling water flows into the cylinder cover (002, Figure 5-6) and the exhaust valve cage (001).
The cooling water flows back through the cooling water outlet (003) to the cooling water system
of the plant.
To prevent unwanted tension in the top part of the cylinder liner the temperature of the cooling
water must stay in the permitted range:
•
±2°C at constant load
•
±4°C during load changes.
X92-B
AA00-2124-00AAA-043A-A
Operation Manual Cylinder liner
Winterthur Gas & Diesel Ltd.
- 124 - Issue 002 2021-11
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