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Lubrication & Fuel/Lube Purification
Inside this lesson
- Describe the marine lube-oil circuit: sump, LO pump, LO cooler, and full-flow/duplex filters
- Explain how a centrifugal separator (purifier) removes water and solids from oil by density difference
- Compute sump turnover time and the number of sump turnovers per day
- Explain why continuous bypass purification keeps oil serviceable far longer than batch changing
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Educational content covering topics typical of a first- and second-year marine engineering / naval architecture curriculum. Not a substitute for accredited coursework, and not suitable for real vessel design, operation, or safety decisions without review by a licensed professional engineer. References to classification societies, SOLAS, or MARPOL are descriptive context only, not compliance guidance.