TOPICS FOR SPEAKING
leaks, all the remaining bottom tanks containing, for example, fresh water,
seawater or fuel oil, can be separated from the lubricating oil bottom tank by
coffer-dams (2). To safeguard the pump, a course filter (4) is inserted between the
pump and the bottom tank. The pump forces the oil a through lubricating oil cooler
(6) and filters (7) to the main engine (1) where the oil is distributed to bearings and
pistons.
TURBOCHARGE SYSTEM
Most modern engines are turbocharged to increase the power output and
efficiency. The efficiency of the system is increased by fitting a charge air cooler
after the compressor.
Exhaust gas from the cylinders operates the gas turbine, giving up some of its heat
energy to do so. The turbine drives a directly coupled air compressor, which draws
air from the atmosphere, compresses it and then cools in the charge air cooler
before supplying it to the engine through scavenge ports.
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