PUMP
MAIN ENGINE
AUX ENGINE
PUMP
A pump is a mechanical device driven by an energy source that is used to move liquid (fluid) from one place to another, where the liquid only flows if there is a difference in pressure.
MAIN ENGINE
Main Engine means any internal combustion, compression-ignition engine that is configured to supply propulsion power for an Ocean Going Vessel, regardless of whether the propulsion system is direct-drive, geared drive or diesel
AUX ENGINE
Auxiliary engine means a diesel engine on an ocean-going vessel designed primarily to provide power for uses other than propulsion or emergencies, except that all diesel-electric engines shall be considered “auxiliary diesel engines” for purposes of this section.