Engineering · Diesel — Lubrication
Cylinder lubrication on a large two-stroke crosshead engine is supplied by:
- ASplash from the crankcase oil
- BTimed quills/lubricators injecting oil onto the liner✓ Correct
- CThe jacket cooling water
- DFuel mixed with the oil
Explanation
Crosshead engines separate the crankcase from the combustion space, so the liner is lubricated by a separate cylinder-oil system that meters alkaline oil through quills timed to piston position.
Authority: Lubrication (USCG engineering topic)
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